sl-test

Overview Schema Related Servers Score Discussions

Server Quality Checklist

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Latest release: v1.0.0
Disambiguation3/5
The tools have overlapping purposes due to excessive specialization, such as multiple build tools for iOS simulators with minor variations (by UUID vs. name, project vs. workspace). While descriptions clarify parameters, the sheer number of similar tools creates ambiguity and increases the risk of misselection, as agents must navigate many near-identical options.
Naming Consistency4/5
Tool names follow a consistent snake_case pattern with clear verb_noun structures, such as 'build_ios_dev_proj' or 'get_sim_app_path_id_ws'. However, minor inconsistencies exist, like 'boot_sim' using a shorter form compared to others, and some tools like 'scaffold_ios_project' deviate slightly in word order, but overall the naming is predictable and readable.
Tool Count2/5
With 54 tools, the count is excessive for the domain of iOS/macOS development and testing. This bloats the tool surface, making it cumbersome for agents to navigate and increasing cognitive load. A more streamlined set with fewer, more generalized tools would be more appropriate and user-friendly.
Completeness5/5
The tool set comprehensively covers the iOS/macOS development lifecycle, including project scaffolding, building, cleaning, running, simulator management, logging, and Swift package operations. There are no obvious gaps; agents can perform end-to-end workflows from creation to testing and deployment without dead ends.
Average 3.3/5 across 54 of 54 tools scored. Lowest: 2.7/5.
See the Tool Scores section below for per-tool breakdowns.
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{
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  "maintainers": [
    "your-github-username"
  ]
}
```
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How is the quality score calculated?

The overall quality score combines two components: Tool Definition Quality (70%) and Server Coherence (30%).

Tool Definition Quality measures how well each tool describes itself to AI agents. Every tool is scored 1–5 across six dimensions: Purpose Clarity (25%), Usage Guidelines (20%), Behavioral Transparency (20%), Parameter Semantics (15%), Conciseness & Structure (10%), and Contextual Completeness (10%). The server-level definition quality score is calculated as 60% mean TDQS + 40% minimum TDQS, so a single poorly described tool pulls the score down.

Server Coherence evaluates how well the tools work together as a set, scoring four dimensions equally: Disambiguation (can agents tell tools apart?), Naming Consistency, Tool Count Appropriateness, and Completeness (are there gaps in the tool surface?).

Tiers are derived from the overall score: A (≥3.5), B (≥3.0), C (≥2.0), D (≥1.0), F (<1.0). B and above is considered passing.

Tool Scores

Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries full burden. It mentions 'swift test' but doesn't disclose behavioral traits like execution time, side effects (e.g., modifies build artifacts), error handling, or output format. For a test-running tool with zero annotation coverage, this is a significant gap.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence with zero waste. It's appropriately sized and front-loaded, directly stating the tool's purpose without unnecessary elaboration.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's complexity (running tests with 7 parameters), lack of annotations, and no output schema, the description is incomplete. It doesn't explain what the tool returns (e.g., test results, exit codes) or critical behavioral aspects, leaving gaps for an AI agent to understand its full context.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema fully documents all 7 parameters. The description adds no parameter semantics beyond what's in the schema, maintaining the baseline of 3 since the schema does the heavy lifting.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose3/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description 'Runs tests for a Swift Package with swift test' clearly states the action (runs tests) and target (Swift Package), but it's vague about scope and doesn't distinguish from sibling tools like swift_package_build or swift_package_run. It lacks specificity about what kind of tests or what 'swift test' entails.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided on when to use this tool versus alternatives. With many sibling tools for building, running, and managing Swift packages (e.g., swift_package_build, swift_package_run), the description offers no context for selection, prerequisites, or exclusions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden but provides minimal behavioral context. It mentions 'using xcodebuild' which implies a command-line build process, but doesn't disclose critical behaviors like whether this is a blocking/long-running operation, what happens on failure, if it modifies files, or what output to expect. For a build tool with zero annotation coverage, this is insufficient.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence that gets straight to the point with zero wasted words. It's appropriately sized for a tool with comprehensive schema documentation and follows good front-loading by stating the core purpose immediately.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a build tool with 7 parameters, no annotations, and no output schema, the description is inadequate. It doesn't explain what the tool returns (e.g., success/failure status, build output path), what side effects occur, or how it differs from similar build tools. The context signals show this is a complex operation that needs more behavioral disclosure than provided.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all 7 parameters thoroughly. The description adds no additional parameter semantics beyond what's in the schema. This meets the baseline of 3 since the schema does the heavy lifting, but the description doesn't enhance understanding of parameter relationships or usage patterns.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('Builds') and resource ('macOS app using xcodebuild from a project file'), making the purpose immediately understandable. However, it doesn't explicitly differentiate from sibling tools like 'build_mac_ws' (workspace-based) or 'build_run_mac_proj' (build-and-run), leaving some ambiguity about when to choose this specific tool.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided on when to use this tool versus alternatives like 'build_mac_ws' (workspace-based) or 'build_run_mac_proj' (build-and-run). The description only states what it does, not when it's appropriate or what prerequisites might exist (e.g., needing Xcode installed).
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden for behavioral disclosure. It mentions the tool 'Builds a macOS app using xcodebuild' but doesn't describe what happens during execution (e.g., compilation process, output location, error handling), whether it requires specific environment setup, or what the expected outcome is. This leaves significant gaps for a build tool with potential complexity.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence that states the core purpose without unnecessary words. It's appropriately sized for a tool with good schema documentation and gets straight to the point with zero waste.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a build tool with 7 parameters, no annotations, and no output schema, the description is insufficient. It doesn't explain what the tool produces (e.g., where the built app ends up), what happens on success/failure, or any prerequisites (e.g., Xcode installation). The combination of missing behavioral context and lack of output information creates significant gaps.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all 7 parameters thoroughly. The description adds no additional parameter context beyond what's in the schema (e.g., no examples of typical 'extraArgs', no explanation of when 'preferXcodebuild' is needed beyond what the schema says). Baseline 3 is appropriate when schema does the heavy lifting.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('Builds') and target ('macOS app using xcodebuild from a workspace'), which is specific and unambiguous. However, it doesn't explicitly differentiate from sibling tools like 'build_mac_proj' or 'build_run_mac_ws', which would require mentioning workspace vs project builds or build-only vs build-and-run distinctions.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. With multiple sibling tools for building macOS and iOS apps (e.g., 'build_mac_proj', 'build_run_mac_ws'), there's no indication of when a workspace-based build is preferred over project-based, or when to use build-only versus build-and-run variants.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. It mentions 'builds and runs' but doesn't clarify critical aspects like whether this is a destructive operation (e.g., overwrites previous builds), execution time, error handling, or output format. For a tool that performs build and run operations, this lack of detail is a significant gap.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence: 'Builds and runs a macOS app from a workspace in one step.' It's front-loaded with the core purpose, has zero wasted words, and clearly communicates the tool's intent without redundancy.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the complexity of building and running macOS apps, the lack of annotations, and no output schema, the description is incomplete. It doesn't address behavioral traits (e.g., side effects, performance), usage context relative to siblings, or what to expect upon execution (e.g., success/failure indicators, app launch). For a tool with six parameters and no structured safety hints, this is inadequate.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all six parameters thoroughly. The description adds no additional parameter semantics beyond implying the tool uses a workspace (matching 'workspacePath') and involves building/running (matching parameters like 'scheme' and 'configuration'). This meets the baseline of 3 when the schema does the heavy lifting.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: 'Builds and runs a macOS app from a workspace in one step.' It specifies the verb ('builds and runs'), resource ('macOS app'), and scope ('from a workspace'), which is specific and actionable. However, it doesn't explicitly differentiate from sibling tools like 'build_mac_ws' or 'build_run_mac_proj', which is a minor gap.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. With many sibling tools for building and running iOS/macOS apps (e.g., 'build_mac_ws', 'build_run_mac_proj', 'build_run_ios_sim_id_ws'), there's no indication of when this specific tool is preferred, such as for workspace-based macOS builds that include running the app, or prerequisites like having Xcode installed.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries full burden. It describes a read-only scanning operation but doesn't disclose important behavioral traits: whether it's recursive by default (implied by maxDepth parameter), performance characteristics, error handling, output format, or any side effects. The description is minimal and leaves critical behavior unspecified.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence that front-loads the core functionality. It wastes no words while covering the essential action (scan), target (directory), and outputs (specific file types). Every word earns its place.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given no annotations and no output schema, the description is insufficiently complete. It doesn't explain what the tool returns (list of paths? structured data?), error conditions, or how it interacts with the many sibling build tools. For a discovery tool in a complex iOS/macOS development environment, more context about the output and integration would be valuable.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all three parameters thoroughly. The description mentions directory scanning with default workspace root, which aligns with the schema but adds no additional semantic context beyond what's in the parameter descriptions. This meets the baseline for high schema coverage.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: scanning a directory to find Xcode project and workspace files. It specifies the resource (directory) and verb (scan/find) with concrete file types (.xcodeproj, .xcworkspace). However, it doesn't explicitly differentiate from sibling tools, which are mostly build/run/management tools rather than discovery tools.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. It doesn't mention prerequisites, typical use cases, or relationships to the many sibling build/management tools. The agent must infer usage from the tool name and description alone.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. It states the action ('Opens') but doesn't explain what 'Opens' entails (e.g., launching the app, activating a window, requiring prior setup), potential side effects, or error conditions. This leaves significant gaps in understanding the tool's behavior.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, straightforward sentence with no wasted words, making it easy to parse and front-loaded with the core action. Every word earns its place by directly stating the tool's purpose.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the complexity of interacting with an iOS Simulator (implied by many sibling tools) and the lack of annotations, output schema, or parameter details, the description is incomplete. It doesn't address what 'Opens' means in this context, potential dependencies, or how it fits into broader workflows, leaving the agent under-informed.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The schema has 0% description coverage for its single parameter 'enabled', and the tool description provides no information about parameters. Since there's only one parameter, the baseline is 4, but the description fails to compensate for the lack of schema details, offering no insight into what 'enabled' means or how it affects the opening process.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('Opens') and the target resource ('the iOS Simulator app'), providing a specific verb+resource combination. However, it doesn't differentiate from sibling tools like 'boot_sim' or 'launch_app_sim', which might have overlapping functionality in starting simulator-related processes.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. With many sibling tools related to iOS simulators (e.g., 'boot_sim', 'launch_app_sim'), there's no indication of prerequisites, timing, or distinctions, leaving the agent to guess based on tool names alone.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It states the action ('Resets') but doesn't clarify if this is a destructive operation, what 'default' means specifically, whether it requires specific permissions, or what the outcome looks like (e.g., success confirmation). For a mutation tool with zero annotation coverage, this is a significant gap in transparency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence that front-loads the core action and target without unnecessary words. It's appropriately sized for a simple tool, with zero waste or redundancy, making it easy for an agent to parse quickly.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's mutation nature (resetting implies change) and lack of annotations or output schema, the description is incomplete. It doesn't address behavioral aspects like safety, permissions, or result format, leaving gaps for the agent. While concise, it fails to provide enough context for reliable use in a simulator management environment.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has 100% description coverage, with the single parameter 'simulatorUuid' documented as 'UUID of the simulator to use (obtained from list_simulators)'. The description doesn't add any meaning beyond this, as it doesn't mention parameters at all. Given the high schema coverage, the baseline score of 3 is appropriate, as the schema adequately handles parameter documentation.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('Resets') and target ('network conditions to default in the simulator'), making the purpose understandable. It doesn't explicitly differentiate from sibling tools like 'set_network_condition', but the verb 'resets' implies a distinct operation from 'set', so it's not vague. It avoids tautology by specifying what gets reset beyond just the name.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided on when to use this tool versus alternatives like 'set_network_condition' or other simulator management tools. The description implies usage for resetting network conditions, but lacks explicit context, prerequisites (e.g., after using 'set_network_condition'), or exclusions. This leaves the agent without clear direction on appropriate scenarios.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. It states the action ('Resets') but doesn't explain what 'default' means, whether this is a destructive operation, if it requires specific permissions, or what happens to the simulator's state. For a mutation tool with zero annotation coverage, this is insufficient.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence with no wasted words. It's front-loaded with the core action and target, making it easy to parse quickly.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a mutation tool with no annotations and no output schema, the description is incomplete. It doesn't explain what 'default' location entails, the effects on the simulator, error conditions, or return values. Given the complexity of simulator operations and lack of structured data, more context is needed.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has 100% description coverage, with 'simulatorUuid' documented as 'UUID of the simulator to use (obtained from list_simulators)'. The description doesn't add any parameter details beyond what the schema provides, so the baseline score of 3 is appropriate given the schema does the heavy lifting.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('Resets') and the target ('simulator's location to default'), making the purpose understandable. However, it doesn't distinguish this tool from sibling tools like 'set_simulator_location' or other simulator-related tools, which would require explicit differentiation.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided on when to use this tool versus alternatives like 'set_simulator_location' or other simulator configuration tools. The description lacks context about prerequisites, such as needing a simulator UUID from 'list_sims', or when resetting location is appropriate.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden for behavioral disclosure. It states what the tool does but doesn't describe important behavioral aspects: whether this is a persistent setting, if it affects all simulator traffic, what permissions are needed, whether it's reversible (hinting at reset_network_condition but not explicit), or what happens on failure. For a configuration tool with mutation implications, this is inadequate.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence that gets straight to the point. It front-loads the core purpose and provides helpful examples. However, it could be slightly more structured by separating the purpose from the profile examples for better readability.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a tool that modifies simulator state with no annotations and no output schema, the description is insufficient. It doesn't explain the tool's effect duration, error conditions, relationship to reset_network_condition, or what happens to existing network conditions. Given the complexity of network simulation and lack of structured behavioral hints, more context is needed for safe and effective use.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, with both parameters well-documented in the schema. The description adds minimal value beyond the schema by listing example profiles in parentheses, but doesn't explain profile semantics (e.g., what '100%loss' means operationally) or provide context about simulatorUuid beyond what's in the schema. Baseline 3 is appropriate given the schema does the heavy lifting.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: 'Simulates different network conditions in the simulator.' It specifies the verb ('simulates') and resource ('network conditions'), and provides concrete examples of profiles. However, it doesn't explicitly differentiate from sibling 'reset_network_condition', which is a related but distinct operation.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. It doesn't mention prerequisites (e.g., needing a simulator UUID from list_simulators), when this should be applied (before/after app launch), or how it relates to sibling tools like reset_network_condition. The agent must infer usage from parameter descriptions alone.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It states the tool sets a custom GPS location, implying a mutation, but doesn't describe effects like whether this persists across simulator sessions, requires specific permissions, or has side effects. This leaves significant gaps in understanding the tool's behavior beyond the basic action.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, direct sentence that efficiently conveys the core action without unnecessary words. It's front-loaded with the key information, making it highly concise and well-structured for quick understanding.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the complexity of a mutation tool with no annotations and no output schema, the description is insufficient. It doesn't explain what happens after setting the location (e.g., success/failure indicators, error conditions, or how to verify the change), leaving the agent without enough context for reliable use.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has 100% description coverage, with clear parameter documentation (e.g., 'UUID of the simulator to use', 'latitude', 'longitude'). The description adds no additional parameter details beyond what the schema provides, so it meets the baseline score of 3 for high schema coverage without adding extra value.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('Sets') and target ('custom GPS location for the simulator'), making the purpose understandable. However, it doesn't explicitly differentiate from sibling tools like 'reset_simulator_location', which appears to be a related reset function, so it misses the highest clarity level.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives like 'reset_simulator_location' or other simulator-related tools in the sibling list. It lacks context about prerequisites, such as needing a running simulator or valid UUID, and offers no explicit when-not-to-use advice.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden for behavioral disclosure. 'Builds a Swift Package' implies a potentially time-consuming, resource-intensive operation that may produce artifacts, but the description doesn't mention execution time, output location, error behavior, or what happens when the build fails. For a build tool with zero annotation coverage, this is insufficient behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence that states exactly what the tool does without any wasted words. It's appropriately sized for a straightforward build operation and gets directly to the point.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a build tool with no annotations and no output schema, the description is incomplete. It doesn't explain what the tool produces (executables, libraries, build logs), where outputs go, how to handle build failures, or what success looks like. Given the complexity of build operations and the lack of structured behavioral information, the description should provide more context about the tool's behavior and results.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already fully documents all 5 parameters. The description adds no parameter information beyond what's in the schema. According to scoring rules, when schema_description_coverage is high (>80%), the baseline is 3 even with no param info in the description.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('Builds') and resource ('a Swift Package with swift build'), making the purpose immediately understandable. It doesn't explicitly differentiate from sibling tools like 'swift_package_run' or 'swift_package_test', but the verb 'Builds' provides reasonable distinction from other Swift package operations.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. With many sibling tools available (including other build tools like 'build_ios_dev_proj' and Swift package operations like 'swift_package_run'), there's no indication of when this specific Swift package build tool is appropriate versus other build or execution options.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden for behavioral disclosure. 'Runs an executable target' implies execution but doesn't disclose important behaviors: whether this blocks until completion (except via the 'background' parameter), what happens on timeout, whether it requires specific permissions, or what output/errors look like. The description is minimal and lacks behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence that states the core functionality without unnecessary words. It's appropriately sized and front-loaded with the essential information. Every word earns its place.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the complexity of a tool that executes code (7 parameters, no annotations, no output schema), the description is inadequate. It doesn't explain what happens during execution, what the agent should expect as results, error handling, or interaction patterns. For a tool that runs executables, more context about execution behavior is needed.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all 7 parameters thoroughly. The description adds no parameter-specific information beyond what's in the schema. According to guidelines, when schema coverage is high (>80%), the baseline is 3 even with no param info in the description.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('Runs an executable target') and resource ('from a Swift Package with swift run'), providing a specific verb+resource combination. However, it doesn't explicitly differentiate from sibling tools like 'swift_package_build' or 'swift_package_test', which would require a 5.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. There's no mention of prerequisites, when to choose this over other build/run tools, or any context about appropriate use cases. It's a basic functional statement with no usage guidance.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. It states the action ('Builds an iOS app') and required parameters, but doesn't describe what the build does (e.g., compiles code, generates artifacts), potential side effects (e.g., modifies files, requires Xcode installation), error conditions, or output format. For a build tool with zero annotation coverage, this is a significant gap in transparency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is appropriately sized with two sentences: one stating the purpose and requirements, and one providing an example. It's front-loaded with key information and avoids unnecessary details, though the example could be slightly more concise (e.g., by omitting the function call syntax). Overall, it's efficient with minimal waste.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the complexity of a build tool with 8 parameters, no annotations, and no output schema, the description is incomplete. It lacks information on what the build process entails, success/failure indicators, output artifacts, dependencies (e.g., Xcode), or error handling. Without annotations or output schema, the description should provide more context to guide effective use.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all 8 parameters thoroughly. The description adds minimal value by naming the three required parameters in text and providing an example that shows their usage, but doesn't explain parameter meanings beyond what the schema provides. This meets the baseline of 3 when schema coverage is high.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool 'Builds an iOS app from a project file for a specific simulator by UUID,' which specifies the verb (builds), resource (iOS app), and target (simulator by UUID). However, it doesn't explicitly differentiate from siblings like 'build_ios_sim_name_proj' (which uses simulator name instead of UUID) or 'build_ios_dev_proj' (which builds for a device), leaving some ambiguity in sibling differentiation.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage by stating 'Requires projectPath, scheme, and simulatorId' and providing an example, which suggests when to use it (for building with a specific simulator UUID). However, it doesn't explicitly mention when not to use it or name alternatives like 'build_ios_sim_name_proj' for simulator name-based builds, leaving usage context partially implied rather than fully explicit.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden but only mentions required parameters and provides an example. It doesn't disclose important behavioral traits like whether this is a long-running operation, what happens on failure, if it requires Xcode installation, or what output to expect. The description is minimal beyond the basic action.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is efficiently structured with the core purpose first, followed by important requirements and an example. Both sentences earn their place, though the example could be more concise. It's appropriately sized for an 8-parameter tool with no annotations.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a build-and-run tool with 8 parameters, no annotations, and no output schema, the description is insufficient. It doesn't explain what 'builds and runs' entails, what happens on success/failure, expected runtime, or output format. The example helps but doesn't compensate for missing behavioral context.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema fully documents all 8 parameters. The description adds minimal value by naming the 3 required parameters and providing an example, but doesn't explain parameter relationships or usage beyond what's in the schema. Baseline 3 is appropriate when schema does the heavy lifting.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the specific action ('Builds and runs an iOS app'), resource ('from a project file'), and target ('on a simulator specified by name'). It distinguishes from siblings like 'build_ios_sim_name_proj' (which only builds) and 'build_run_ios_sim_id_proj' (which uses simulator ID instead of name).
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives like 'build_run_ios_sim_id_proj' (simulator ID vs name) or 'build_run_ios_sim_name_ws' (workspace vs project). It only states required parameters without context about when this specific tool is appropriate.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. It mentions the mandatory 'appPath' and a note about potential environment prefixes, but fails to describe critical behaviors such as permissions needed, whether the app runs in foreground/background, error handling, or system impacts. This leaves significant gaps for a tool that launches applications.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is front-loaded with the core purpose, followed by important usage notes and an example. It is relatively concise with three sentences, but the note about environment prefixes could be considered slightly extraneous. Overall, it avoids unnecessary verbosity and structures information effectively.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the complexity of launching applications and lack of annotations or output schema, the description is incomplete. It does not cover behavioral aspects like system interactions, success/failure responses, or integration with sibling tools. For a tool with potential system-level effects, more context is needed to ensure safe and correct usage.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents both parameters ('appPath' and 'args') thoroughly. The description adds minimal value by emphasizing the requirement for 'appPath' and providing an example, but does not elaborate on parameter semantics beyond what the schema provides. Baseline 3 is appropriate given high schema coverage.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: 'Launches a macOS application.' It specifies the verb ('launches') and resource ('macOS application'), making the intent unambiguous. However, it does not explicitly differentiate from sibling tools like 'launch_app_sim' or 'launch_app_logs_sim', which appear to be simulator-specific, so it misses full sibling distinction.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides some implied usage guidance by emphasizing the 'appPath' parameter as mandatory and giving an example, but it does not explicitly state when to use this tool versus alternatives like 'launch_app_sim' for simulators. No exclusions or clear alternatives are mentioned, leaving usage context partially defined.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. It mentions the requirement for 'projectPath' but doesn't disclose other behavioral traits such as whether this is a read-only operation, what the output format looks like (e.g., list of strings, JSON structure), error conditions, or performance considerations. The description is minimal and misses key details needed for safe and effective use.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is appropriately sized with two sentences: one stating the purpose and requirement, and one providing an example. It's front-loaded with the core information and avoids unnecessary details, though the example could be slightly more concise by omitting the tool name repetition.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the lack of annotations and output schema, the description is incomplete. It doesn't explain what 'schemes' are in this context (e.g., build configurations in Xcode), the return format, or potential errors. For a tool with no structured output documentation, more descriptive context is needed to guide the agent effectively.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The schema description coverage is 100%, with the parameter 'projectPath' fully documented in the schema as 'Path to the .xcodeproj file (Required)'. The description adds minimal value by reiterating the requirement and providing an example, but doesn't offer additional semantics like format constraints or examples beyond the schema. This meets the baseline for high schema coverage.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb ('Lists') and resource ('available schemes in the project file'), making the purpose specific and understandable. However, it doesn't explicitly differentiate from its sibling 'list_schems_ws', which likely lists schemes in a workspace file, leaving some ambiguity about when to choose one over the other.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage by specifying 'Requires projectPath' and providing an example, which gives context for when to use it. However, it lacks explicit guidance on when to use this tool versus alternatives like 'list_schems_ws' or other project-related tools, leaving the agent to infer based on the parameter name 'projectPath'.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. It mentions the output includes UUIDs but doesn't specify format (e.g., list, JSON), pagination, or error handling. For a read operation with no annotations, this leaves gaps in understanding how the tool behaves beyond basic listing.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence that front-loads the core purpose without unnecessary details. Every word contributes to understanding the tool's function, making it appropriately sized and well-structured for quick comprehension.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's low complexity (one parameter, no output schema, no annotations), the description is minimally adequate. It covers the basic action and output but lacks details on usage context, parameter meaning, and behavioral traits, leaving room for improvement in guiding the agent effectively.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The schema has 0% description coverage, but the description doesn't explain the single parameter 'enabled'. It implies filtering by availability but doesn't clarify what 'enabled' means (e.g., active simulators vs. installed ones). Since schema coverage is low, the description adds minimal value beyond the schema, meeting the baseline for partial compensation.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose with a specific verb ('Lists') and resource ('available iOS simulators with their UUIDs'), making it easy to understand what the tool does. However, it doesn't explicitly differentiate from sibling tools like 'open_sim' or 'boot_sim', which might have overlapping functionality.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. It doesn't mention prerequisites, such as needing simulators to be installed or running, or compare it to sibling tools like 'discover_projs' that might list related resources, leaving the agent without context for selection.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It states the tool 'Builds an iOS app' but doesn't clarify whether this is a read-only operation, what happens on failure, whether it modifies the project, or what the output looks like. For a build tool with potential side effects, this lack of behavioral context is a significant gap.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is efficiently structured with the core purpose first, followed by important requirements and a clear example. Both sentences earn their place by providing essential information without redundancy. It could be slightly more concise by integrating the example more seamlessly, but overall it's well-organized.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a build tool with 8 parameters and no annotations or output schema, the description provides adequate basic information about what the tool does and required parameters. However, it lacks critical context about behavioral characteristics (side effects, failure modes) and doesn't help differentiate it from similar sibling tools, leaving gaps in overall completeness.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all 8 parameters thoroughly. The description adds minimal value by explicitly naming the three required parameters in the example, but doesn't provide additional context about parameter interactions or usage beyond what's in the schema. This meets the baseline for high schema coverage.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the specific action ('Builds an iOS app'), resource ('from a project file'), and target ('for a specific simulator by name'), which distinguishes it from siblings like build_ios_dev_proj (device builds) and build_ios_sim_id_proj (simulator by ID). The verb+resource+target combination is precise and unambiguous.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives like build_ios_sim_name_ws (workspace-based) or build_run_ios_sim_name_proj (build-and-run). It mentions required parameters but doesn't explain the tool's role in the broader workflow or prerequisites beyond those parameters.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It mentions the required parameter and optional ones, but doesn't describe what 'clean' actually does (e.g., deletes derived data, removes build artifacts), potential side effects, permission requirements, or error behavior. The example helps but doesn't fully compensate for the lack of behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is appropriately sized with two sentences: one stating the purpose and requirements, and one providing an example. It's front-loaded with the core functionality. The example is helpful but could be considered slightly verbose, though not excessive.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's moderate complexity (5 parameters, no output schema, no annotations), the description is minimally adequate. It covers the basic purpose and parameter requirements but lacks details about what cleaning entails, potential impacts, or return values. For a mutation tool with no annotations, more behavioral context would be expected.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all 5 parameters thoroughly. The description adds minimal value beyond the schema by emphasizing that projectPath is required and scheme/configuration are optional, but doesn't provide additional semantic context about parameter usage or interactions.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('Cleans build products') and resource ('for a specific project file using xcodebuild'), providing a specific verb+resource combination. However, it doesn't explicitly differentiate from sibling tools like 'clean_ws' or 'swift_package_clean', which would be needed for a score of 5.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides implied usage guidance by stating 'Requires projectPath' and noting that Scheme/Configuration are optional, but it doesn't explicitly say when to use this tool versus alternatives like 'clean_ws' or 'swift_package_clean'. No when-not-to-use scenarios or clear alternatives are mentioned.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It describes the tool's function and required parameters but lacks details on what happens during execution (e.g., whether it builds the project, validates inputs, or returns errors), the output format (e.g., string path or structured data), or any side effects. The example helps but doesn't cover behavioral traits comprehensively.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is appropriately sized with two sentences: one stating the purpose and one with usage guidance and an example. It's front-loaded with the core functionality and efficiently includes critical information. The example is helpful but could be slightly more concise by integrating it into the flow.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the complexity (6 parameters, no output schema, no annotations), the description is adequate but has gaps. It covers the purpose and required parameters well, but without annotations or output schema, it should ideally explain more about the return value (e.g., what the 'app bundle path' looks like) and potential errors. The example partially compensates, but completeness is moderate.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all parameters thoroughly. The description adds minimal value beyond the schema by emphasizing the four required parameters in the IMPORTANT note and providing an example with sample values. However, it doesn't explain parameter interactions or semantics beyond what's in the schema descriptions.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: 'Gets the app bundle path for a simulator by name using a project file.' It specifies the verb ('gets'), resource ('app bundle path'), and key constraints ('by name', 'using a project file'). However, it doesn't explicitly differentiate from sibling tools like get_sim_app_path_id_proj or get_sim_app_path_name_ws, which appear to be similar tools using different identifiers or workspace files.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides some usage context by stating 'IMPORTANT: Requires projectPath, scheme, platform, and simulatorName' and includes an example, which helps understand when to use it. However, it doesn't explicitly state when to choose this tool over alternatives (like get_sim_app_path_id_proj for simulator ID instead of name) or mention any prerequisites beyond the required parameters.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. It states the tool 'Gets' (implying read-only) and lists required parameters, but doesn't disclose behavioral traits like error conditions, return format, whether it's idempotent, or performance characteristics. The example helps but doesn't compensate for missing behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is appropriately sized with two sentences: one stating the purpose and one with requirements and an example. It's front-loaded with the core purpose. The example is helpful but slightly verbose; every sentence earns its place, though minor trimming could improve conciseness.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given 6 parameters, no annotations, and no output schema, the description is moderately complete. It covers the purpose and required parameters but lacks details on return values, error handling, and behavioral nuances. For a tool with this complexity and no structured output, more context would be beneficial to achieve higher completeness.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all parameters thoroughly. The description adds minimal value beyond the schema by listing required parameters in the 'IMPORTANT' note and providing an example, but doesn't explain parameter interactions or semantics not in the schema. Baseline 3 is appropriate when schema does the heavy lifting.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: 'Gets the app bundle path for a simulator by name using a workspace.' It specifies the verb ('Gets'), resource ('app bundle path'), and key constraints ('by name', 'using a workspace'). However, it doesn't explicitly differentiate from sibling tools like 'get_sim_app_path_name_proj' or 'get_sim_app_path_id_ws', which would require a 5.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides implied usage context through the 'IMPORTANT' note listing required parameters, suggesting when to use this tool (when you have a workspace and simulator name). However, it lacks explicit guidance on when to choose this over alternatives like 'get_sim_app_path_name_proj' (project-based) or 'get_sim_app_path_id_ws' (ID-based), and doesn't mention prerequisites or exclusions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. It mentions that the tool 'Lists available schemes' and requires workspacePath, but doesn't describe other behaviors such as output format, potential errors, or whether it's read-only or has side effects. For a tool with no annotations, this leaves significant gaps in understanding its behavior.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is concise and front-loaded, starting with the core purpose in the first sentence. The second sentence adds necessary context and an example without redundancy. However, the example could be slightly more informative (e.g., clarifying path format), and there's minor room for improvement in efficiency.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's low complexity (1 parameter, no output schema, no annotations), the description is somewhat complete but lacks depth. It covers the basic purpose and parameter requirement, but without annotations or output schema, it should ideally explain more about the return values or behavioral traits to fully guide an AI agent, leaving it as minimally adequate.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The schema description coverage is 100%, with the parameter 'workspacePath' fully documented in the schema as 'Path to the .xcworkspace file (Required)'. The description adds minimal value beyond this by emphasizing 'IMPORTANT: Requires workspacePath' and providing an example, but doesn't offer additional semantics like format details or constraints. Baseline 3 is appropriate given high schema coverage.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: 'Lists available schemes in the workspace.' It specifies the verb ('Lists') and resource ('schemes in the workspace'), making the action clear. However, it doesn't explicitly distinguish this tool from its sibling 'list_schems_proj', which likely lists schemes in a project rather than workspace, so it misses full sibling differentiation.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage context by specifying that it requires a workspacePath and provides an example, which suggests when to use this tool (for workspaces). However, it doesn't explicitly state when not to use it or mention alternatives like 'list_schems_proj' for projects, leaving some ambiguity in sibling tool selection.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. It mentions that the tool 'shows' build settings, implying a read-only operation, but doesn't clarify if it's safe, what output format to expect, or any potential side effects. The description adds minimal behavioral context beyond the basic action.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is appropriately sized with two sentences: one stating the purpose and requirements, and one providing an example. It's front-loaded with the core functionality. The example is helpful but could be slightly more concise by avoiding repetition of the tool name.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's moderate complexity (2 required parameters, no output schema, no annotations), the description is minimally adequate. It covers the purpose and parameters but lacks details on output format, error handling, or integration with sibling tools. Without annotations or output schema, more behavioral context would improve completeness.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents both parameters (projectPath and scheme) with descriptions. The description adds value by emphasizing these as required and providing an example, but it doesn't add significant meaning beyond what the schema provides, such as format details or usage nuances.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: 'Shows build settings from a project file using xcodebuild.' It specifies the verb ('shows'), resource ('build settings'), and method ('using xcodebuild'). However, it doesn't explicitly differentiate from its sibling 'show_build_set_ws', which likely shows build settings from a workspace instead of a project file.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage context by mentioning the required parameters (projectPath and scheme) and providing an example, but it doesn't explicitly state when to use this tool versus alternatives like 'show_build_set_ws' or other build-related tools. The 'IMPORTANT' note about requirements serves as basic guidance but lacks comparative context.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. It mentions that the tool 'shows' build settings, implying a read-only operation, but doesn't disclose behavioral traits such as whether it has side effects, requires specific permissions, or how it handles errors. The description adds minimal context beyond the basic action.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is appropriately sized with two sentences: one stating the purpose and requirements, and another providing an example. It's front-loaded with key information and avoids unnecessary details, though the example could be slightly more concise.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's moderate complexity (2 required parameters, no output schema, and no annotations), the description is somewhat complete but lacks depth. It covers the basic action and parameters but doesn't explain what 'build settings' includes, potential output format, or integration with sibling tools, leaving gaps for effective agent use.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has 100% description coverage, clearly documenting both required parameters. The description adds value by emphasizing that both parameters are required and providing an example, but it doesn't add significant meaning beyond what the schema already specifies, such as format details or constraints.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb 'shows' and the resource 'build settings from a workspace using xcodebuild', making the purpose specific and understandable. However, it doesn't explicitly differentiate from its sibling 'show_build_set_proj', which appears to be a similar tool for projects rather than workspaces, leaving some ambiguity in sibling differentiation.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage context by specifying that it requires 'workspacePath and scheme' and mentions xcodebuild, but it doesn't provide explicit guidance on when to use this tool versus alternatives like 'show_build_set_proj' or other build-related siblings. The example helps illustrate usage but doesn't clarify distinctions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It states the tool performs cleanup (a destructive operation) but doesn't specify what exactly gets deleted, whether the operation is reversible, potential side effects, or permission requirements. For a destructive tool with zero annotation coverage, this leaves significant behavioral gaps.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence that immediately conveys the core function without unnecessary words. It's perfectly front-loaded with the essential information and contains no redundant or verbose elements.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a destructive cleanup tool with no annotations and no output schema, the description is insufficient. It doesn't explain what 'build artifacts and derived data' specifically includes, what the tool returns (success/failure indicators), or important behavioral aspects like whether it requires the package to be in a particular state. The context demands more comprehensive documentation.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The schema has 100% description coverage, with the single parameter 'packagePath' well-documented in the schema itself. The description doesn't add any parameter-specific information beyond what the schema already provides, so it meets the baseline of 3 for high schema coverage without adding extra value.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the specific action ('Cleans') and target resources ('Swift Package build artifacts and derived data'), distinguishing it from sibling tools like clean_proj and clean_ws which target different resources. It uses precise technical terminology that accurately conveys the tool's function.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives like clean_proj or clean_ws, nor does it mention prerequisites or typical use cases. While the name implies it's for Swift packages specifically, there's no explicit comparison to sibling tools that handle similar cleanup for different project types.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. It states it's a listing operation, implying read-only behavior, but doesn't disclose details like output format, pagination, error conditions, or whether it requires specific permissions. For a tool with zero annotation coverage, this is insufficient.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence with no wasted words. It's front-loaded with the core action and resource, making it easy to parse quickly.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool has no parameters and no output schema, the description is minimally adequate but lacks behavioral context. Without annotations, it should ideally explain what 'lists' entails (e.g., format, scope), but it doesn't, leaving gaps for the agent.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters4/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The tool has 0 parameters, and schema description coverage is 100%, so no parameter documentation is needed. The description doesn't add parameter details, but that's appropriate here, warranting a baseline score of 4 for adequate coverage.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb ('Lists') and resource ('currently running Swift Package processes'), making the purpose unambiguous. However, it doesn't explicitly differentiate from sibling tools like 'swift_package_build' or 'swift_package_run', which would require a 5.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided on when to use this tool versus alternatives. The description doesn't mention prerequisites, timing, or how it relates to other Swift Package tools in the sibling list, leaving the agent to infer usage context.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It states the action ('Builds') and requirements, but does not cover critical aspects like whether this is a destructive operation, permission needs, rate limits, or output behavior. For a build tool with zero annotation coverage, this leaves significant gaps in understanding its effects.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is front-loaded with the core purpose and key requirements in the first sentence, followed by a concise example. It avoids unnecessary details, though the example could be slightly trimmed. Overall, it is efficient with minimal waste.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the complexity of a build tool with 6 parameters, no annotations, and no output schema, the description is insufficient. It lacks information on behavioral traits (e.g., side effects, error handling), output format, or integration with sibling tools. For a tool that performs a significant operation, more context is needed to ensure safe and effective use.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema fully documents all 6 parameters. The description adds minimal value by naming two required parameters (projectPath, scheme) and providing an example, but does not explain parameter interactions or semantics beyond what the schema already states. This meets the baseline for high schema coverage.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the specific action ('Builds an iOS app'), resource ('from a project file'), and target ('for a physical device'), distinguishing it from sibling tools like those for simulators (e.g., build_ios_sim_id_proj) or macOS (e.g., build_mac_proj). It precisely communicates the tool's function without redundancy.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage by specifying 'for a physical device' and listing required parameters, but does not explicitly state when to use this tool versus alternatives (e.g., build_ios_sim_id_proj for simulators) or mention prerequisites beyond parameters. It provides some context but lacks clear guidance on tool selection.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden but only states what the tool does, not behavioral traits like whether this is a destructive operation, what permissions are needed, expected runtime, error conditions, or output format. It mentions 'IMPORTANT' for required parameters but doesn't disclose operational behavior beyond the basic function.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is appropriately sized with two sentences: one stating the purpose and one providing an example. The example is helpful but could be considered slightly verbose. Overall, it's front-loaded with the core purpose and wastes no words.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a build tool with 8 parameters, no annotations, and no output schema, the description is insufficient. It doesn't explain what 'build' entails (compilation, linking, etc.), what happens on success/failure, where output goes, or how this differs from similar build tools. The example helps but doesn't compensate for missing behavioral context.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all 8 parameters thoroughly. The description adds minimal value by highlighting three required parameters in the example, but doesn't provide additional semantic context beyond what's in the schema. This meets the baseline for high schema coverage.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the specific action ('Builds an iOS app'), resource ('from a workspace'), and target ('for a specific simulator by UUID'), distinguishing it from siblings like build_ios_dev_ws (device builds) or build_ios_sim_name_ws (simulator by name). It provides a complete verb+resource+scope statement.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage context by specifying required parameters and mentioning simulatorId is 'obtained from listSimulators', but doesn't explicitly state when to use this tool versus alternatives like build_ios_sim_name_ws (simulator by name) or build_ios_dev_ws (device builds). It provides some guidance but lacks explicit comparison.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden but only states what parameters are required. It doesn't disclose behavioral traits like whether this is a read-only or destructive operation, what happens on failure, expected runtime, or output format. The 'IMPORTANT' note about required parameters is helpful but insufficient for behavioral understanding.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is appropriately sized with two sentences: a clear purpose statement followed by a helpful example. The front-loaded purpose statement earns its place, though the example could be slightly more concise. No wasted words or redundancy.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a build tool with 8 parameters, no annotations, and no output schema, the description is incomplete. It doesn't explain what the tool returns, what happens during execution, error conditions, or how it differs behaviorally from similar build tools. The example helps but doesn't compensate for missing behavioral context.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all 8 parameters thoroughly. The description adds minimal value by highlighting the 3 required parameters in the example, but doesn't provide additional semantic context beyond what's in the schema. Baseline 3 is appropriate when schema does the heavy lifting.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the specific action ('Builds'), resource ('iOS app'), and context ('from a workspace for a specific simulator by name'). It distinguishes from siblings like build_ios_sim_name_proj (which uses project instead of workspace) and build_ios_sim_id_ws (which uses simulator ID instead of name).
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage context (building iOS apps for simulators from workspaces) but doesn't explicitly state when to choose this tool over alternatives like build_ios_sim_name_proj or build_ios_dev_ws. The example helps but doesn't provide comparative guidance.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries full burden. It states 'Sets', implying a mutation/write operation, but doesn't disclose behavioral traits like required permissions, whether changes are persistent, error conditions, or side effects. For a mutation tool with zero annotation coverage, this is a significant gap in transparency beyond the basic action.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence with zero waste. It front-loads the core action and target, using minimal words to convey essential information. Every word earns its place, making it highly concise and well-structured for quick understanding.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given 2 parameters with full schema coverage and no output schema, the description is minimally complete for a simple mutation tool. However, with no annotations and a write operation, it lacks context on permissions, side effects, or error handling. It's adequate but leaves gaps in behavioral understanding that could hinder safe invocation.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, with both parameters well-documented in the schema (including enum values for 'mode' and source for 'simulatorUuid'). The description adds no additional parameter semantics beyond what the schema provides, such as format details or usage examples. Baseline 3 is appropriate when schema does the heavy lifting.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('Sets') and the target resource ('appearance mode of an iOS simulator'), specifying the exact values ('dark/light'). It distinguishes from siblings like 'set_network_condition' or 'set_simulator_location' by focusing on appearance, but doesn't explicitly contrast with them. The purpose is specific and unambiguous, though not explicitly differentiated from all siblings.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage when needing to change simulator appearance, but provides no explicit guidance on when to use this tool versus alternatives (e.g., other 'set_' tools) or prerequisites. It mentions the 'simulatorUuid' parameter comes from 'list_simulators', which is helpful context, but lacks clear when/when-not rules or named alternatives for related tasks.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. While it mentions the tool 'builds and runs' an app (implying a potentially time-consuming operation with side effects), it doesn't describe what happens during execution (e.g., build logs, error handling, whether it waits for completion), performance characteristics, or any system requirements beyond the parameters.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is appropriately sized with two sentences: one stating the purpose and one providing requirements and an example. It's front-loaded with the core functionality and efficiently uses the example to illustrate usage, though the example could be slightly more concise by omitting the function wrapper.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a complex tool with 8 parameters, no annotations, and no output schema, the description is moderately complete. It covers the basic purpose and required parameters but lacks information about what the tool returns, error conditions, execution behavior, or how it differs from similar tools in the sibling list, leaving gaps for an AI agent to fully understand the tool's behavior.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The description adds minimal parameter semantics beyond the schema, which has 100% coverage. It lists the three required parameters in the IMPORTANT note and provides an example with values, but doesn't explain parameter interactions, constraints, or provide additional context about what the parameters mean in practice beyond what's already in the schema descriptions.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose with specific verbs ('Builds and runs') and resources ('iOS app from a workspace on a simulator specified by name'), distinguishing it from siblings like build_run_ios_sim_name_proj (which uses a project instead of workspace) and build_run_ios_sim_id_ws (which uses simulator ID instead of name).
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides implied usage guidance by listing required parameters and giving an example, but it doesn't explicitly state when to use this tool versus alternatives like build_run_ios_sim_name_proj or build_run_ios_sim_id_ws, nor does it mention prerequisites or exclusions beyond the parameter requirements.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It states the tool performs both building and running in one step, which implies mutation and execution, but doesn't disclose permissions needed, side effects (e.g., app launch), error handling, or output behavior. This leaves significant gaps for a tool that likely modifies files and runs applications.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence that front-loads the core purpose ('Builds and runs a macOS app from a project file in one step') with zero wasted words. Every element earns its place.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a complex tool with 6 parameters, no annotations, and no output schema, the description is incomplete. It lacks information about what happens during execution (e.g., does it launch the app, show logs, handle errors?), expected outputs, or behavioral nuances, making it inadequate for safe and effective use.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, providing detailed documentation for all 6 parameters. The description adds no additional parameter semantics beyond what's in the schema, so it meets the baseline of 3 where the schema does the heavy lifting.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the specific action ('Builds and runs') and resource ('macOS app from a project file') in a single step, distinguishing it from sibling tools like 'build_mac_proj' (which only builds) and 'build_run_mac_ws' (which uses a workspace).
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage context (one-step build and run for macOS apps) but doesn't explicitly state when to use this tool versus alternatives like 'build_mac_proj' for building only or workspace-based tools. No exclusions or prerequisites are mentioned.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries full burden. It mentions launching and logging but lacks details on behavioral traits such as whether this is a blocking operation, how logs are captured/formatted, error handling, or resource requirements, leaving significant gaps for a tool with mutation and logging capabilities.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence that front-loads the core functionality ('Launches an app in an iOS simulator') and adds the key feature ('captures its logs') without any wasted words, making it highly concise and well-structured.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the complexity of launching and logging with no annotations and no output schema, the description is incomplete. It doesn't explain what the tool returns (e.g., log output, success status), behavioral aspects, or error conditions, which are critical for effective use by an AI agent.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, providing clear documentation for all parameters. The description adds no additional parameter semantics beyond what the schema already covers, so it meets the baseline score of 3 without compensating or enhancing understanding.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('Launches an app'), target ('in an iOS simulator'), and additional function ('and captures its logs'), making the purpose specific and distinct from sibling tools like 'launch_app_sim' (which lacks logging) and 'start_sim_log_cap' (which only captures logs).
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
Usage is implied through parameter descriptions (e.g., 'simulatorUuid' from 'list_simulators'), but there's no explicit guidance on when to use this tool versus alternatives like 'launch_app_sim' or 'start_sim_log_cap', nor any prerequisites or exclusions mentioned.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden for behavioral disclosure. It states 'creates' which implies a write/mutation operation, but doesn't disclose important behavioral traits like whether this overwrites existing files, what permissions are needed, whether it's idempotent, or what happens on failure. The description mentions the outcome but not the process or potential side effects.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is appropriately sized (two sentences) and front-loaded with the core purpose. Every sentence earns its place by specifying what gets created and the key components. It could be slightly more structured by separating creation details from configuration details, but it's efficient overall.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a creation tool with 11 parameters, no annotations, and no output schema, the description is moderately complete. It explains what gets created but lacks information about return values, error conditions, or behavioral constraints. Given the complexity and absence of structured metadata, it should provide more context about the creation process and outcomes.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all 11 parameters thoroughly with descriptions and defaults. The description doesn't add any parameter-specific information beyond what's in the schema. According to scoring rules, when schema coverage is high (>80%), the baseline is 3 even with no param info in the description.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the specific action ('scaffold a new iOS project from templates') and resource ('iOS project'), distinguishing it from sibling tools like 'scaffold_macos_project' which targets macOS instead of iOS. It provides concrete details about what gets created (Xcode project with workspace structure, SPM package, iOS configuration).
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage context (creating a new iOS project from templates) but doesn't explicitly state when to use this tool versus alternatives like 'scaffold_macos_project' or the various build/run tools. It mentions 'modern Xcode project' which suggests it's for new projects, but lacks explicit guidance on prerequisites or exclusions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. It mentions the purpose and a usage constraint but lacks behavioral details such as what the screenshot captures (e.g., simulator screen), output format (e.g., image file), permissions needed, or error conditions. The description adds minimal context beyond the basic action.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is extremely concise with only two sentences, both of which add value: the first states the purpose, and the second provides critical usage guidance. It is front-loaded with the core function and wastes no words.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the complexity (a tool that captures screenshots likely involves visual output and simulator interaction), lack of annotations, no output schema, and poor parameter documentation, the description is incomplete. It doesn't cover what the tool returns, how the screenshot is accessed, or details about the simulatorUuid parameter, leaving significant gaps for an agent to use it effectively.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters2/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has 1 parameter (simulatorUuid) with 0% description coverage, meaning the schema provides no semantic information. The description does not mention this parameter at all, failing to explain what simulatorUuid is or how it relates to screenshot capture. This leaves the parameter's purpose undocumented.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: 'Captures screenshot for visual verification.' It specifies the action (captures) and resource (screenshot) with a clear goal (visual verification). However, it doesn't explicitly differentiate from all sibling tools, though it does mention one alternative (describe_ui).
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines5/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides explicit guidance on when to use this tool vs. alternatives: 'For UI coordinates, use describe_ui instead (don't determine coordinates from screenshots).' This clearly defines a specific exclusion case and names the alternative tool, helping the agent avoid misuse.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. It mentions 'IMPORTANT: Requires workspacePath and scheme' and gives an example, but lacks details on behavioral traits like error handling, output format, dependencies, or side effects. For a tool with no annotations, this is insufficient.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is appropriately sized with two sentences: one stating the purpose and one providing important usage notes with an example. It is front-loaded with the core functionality, though the example could be slightly more concise.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given no annotations and no output schema, the description is incomplete. It lacks information on what the tool returns (e.g., the path format), error conditions, or any behavioral context needed for effective use. For a tool in this context, more detail is required.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema fully documents all parameters. The description adds minimal value by emphasizing the required parameters in the example, but does not provide additional meaning beyond what the schema already states. Baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose with a specific verb ('Gets') and resource ('app bundle path for an iOS physical device application'), and distinguishes it from siblings by specifying 'using a workspace' (vs. 'proj' in sibling get_ios_dev_app_path_proj). It precisely identifies what the tool does.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides clear context for when to use this tool (for iOS physical device apps with a workspace) and implicitly distinguishes it from project-based alternatives (e.g., get_ios_dev_app_path_proj). However, it does not explicitly state when not to use it or name alternatives, keeping it at a 4.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It states the tool creates files and configures a project, implying mutation, but does not disclose critical behaviors such as whether it overwrites existing files, requires specific permissions, or has side effects like modifying system settings. The description adds some context but leaves significant gaps for a creation tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is two sentences, front-loaded with the core purpose and followed by specific outcomes. Every word earns its place with no redundancy or fluff, making it highly efficient and easy to scan.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's complexity (creation of a project with multiple configurations), no annotations, and no output schema, the description is adequate but incomplete. It covers the purpose and high-level outcome but lacks details on behavioral traits, error handling, or output format, which are important for a mutation tool with no structured safety hints.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The schema description coverage is 100%, so the schema already documents all 8 parameters with descriptions and defaults. The description does not add any parameter-specific information beyond what the schema provides, such as examples or constraints not in the schema. Baseline 3 is appropriate as the schema does the heavy lifting.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the specific action ('scaffold'), target ('new macOS project'), and method ('from templates'), distinguishing it from sibling tools like 'scaffold_ios_project' and various build/clean tools. It specifies the outcome: 'Creates a modern Xcode project with workspace structure, SPM package for features, and proper macOS configuration.'
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage for creating new macOS projects from templates, but does not explicitly state when to use this tool versus alternatives like 'scaffold_ios_project' for iOS or 'build_mac_proj' for building existing projects. It provides context but lacks explicit exclusions or named alternatives.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden but only states the tool's purpose and requirements. It lacks behavioral details such as whether it performs a build, reads cached data, requires specific permissions, or handles errors, which are critical for a tool that likely interacts with Xcode projects.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is front-loaded with the core purpose, followed by important requirements and a clear example. Both sentences are essential—the first defines the tool, and the second provides practical usage—with no wasted words.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the complexity of interacting with Xcode projects, no annotations, and no output schema, the description is insufficient. It does not explain what the returned 'app bundle path' entails, potential side effects, error conditions, or how it differs from similar tools, leaving significant gaps for an AI agent.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema fully documents all parameters. The description adds minimal value by emphasizing that projectPath and scheme are required, but does not provide additional context like parameter interactions or default behaviors beyond what the schema already states.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the specific action ('Gets the app bundle path'), target resource ('for a macOS application'), and method ('using a project file'), distinguishing it from sibling tools like get_mac_app_path_ws (which uses a workspace) and get_ios_dev_app_path_proj (which targets iOS).
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explicitly states when to use this tool ('using a project file') and provides an example, but does not mention when not to use it or name specific alternatives like get_mac_app_path_ws, leaving some guidance implicit.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. It mentions the requirement for workspacePath and scheme but lacks behavioral details such as what happens if the workspace/scheme is invalid, whether it performs a build operation, error handling, or output format. For a tool with no annotations, this leaves significant gaps in understanding its behavior.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is front-loaded with the core purpose, followed by important requirements and an example. It uses two sentences efficiently, though the example could be slightly more concise. Overall, it avoids unnecessary verbosity and communicates key points effectively.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given no annotations and no output schema, the description provides basic purpose and requirements but lacks details on behavior, error cases, or return values. For a tool with 4 parameters and potential complexity in macOS app path retrieval, this is adequate but leaves room for more comprehensive guidance to ensure correct usage.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all parameters thoroughly. The description adds minimal value by emphasizing that workspacePath and scheme are required, but does not provide additional semantics beyond what the schema specifies. This meets the baseline for high schema coverage.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb ('Gets') and resource ('app bundle path for a macOS application'), specifying it uses a workspace. It distinguishes from sibling 'get_mac_app_path_proj' by explicitly mentioning workspace usage, making the purpose specific and differentiated.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides clear context for when to use this tool ('using a workspace') and explicitly states prerequisites ('Requires workspacePath and scheme'). However, it does not mention when not to use it or name alternatives like the project-based sibling, which would be helpful for full differentiation.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden for behavioral disclosure. While it states what the tool does and provides an example, it doesn't disclose important behavioral aspects like whether this is a read-only operation, what permissions are needed, what happens if parameters are invalid, or what the return format looks like. For a tool with 6 parameters and no annotations, this is a significant gap.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is appropriately sized with two sentences: first states the purpose, second provides requirements and example. The example is helpful but could be considered slightly verbose. Overall, it's front-loaded with the core purpose and wastes no words.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a tool with 6 parameters, no annotations, and no output schema, the description provides adequate but incomplete coverage. It clearly states what the tool does and provides an example, but lacks information about return values, error conditions, and behavioral constraints. The example helps but doesn't fully compensate for the missing structural information.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already fully documents all 6 parameters. The description adds minimal value beyond the schema - it mentions the four required parameters by name but doesn't provide additional semantic context about how they interact or why they're needed. Baseline 3 is appropriate when the schema does the heavy lifting.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the specific action ('Gets the app bundle path'), target resource ('for a simulator by UUID'), and method ('using a workspace'). It distinguishes from sibling tools like get_sim_app_path_name_ws (which uses simulator name instead of UUID) and get_sim_app_path_id_proj (which uses project instead of workspace).
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explicitly states when to use this tool ('Requires workspacePath, scheme, platform, and simulatorId') and provides a complete example. It doesn't explicitly state when NOT to use it or name specific alternatives, but the parameter requirements and example provide clear usage context.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden for behavioral disclosure. While it clearly indicates this is a write/mutation operation ('Installs'), it doesn't describe what happens on failure, whether the operation is idempotent, permission requirements, or side effects. The 'IMPORTANT' warning about required parameters is procedural rather than behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is appropriately sized with two sentences: a clear purpose statement followed by a specific usage example. The 'IMPORTANT' warning is front-loaded for emphasis. While efficient, the example could be slightly more concise by omitting the placeholder values in the justification.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a mutation tool with no annotations and no output schema, the description provides adequate basic information about what the tool does and parameter requirements. However, it lacks information about return values, error conditions, or what constitutes successful installation - gaps that become more significant given the absence of structured output documentation.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters4/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already fully documents both parameters. The description adds minimal value beyond the schema by emphasizing that both parameters are mandatory and providing a concrete example format, but doesn't explain parameter relationships or constraints beyond what's in the schema descriptions.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the specific action ('Installs an app') and target resource ('in an iOS simulator'), distinguishing it from sibling tools like 'launch_app_sim' or 'boot_sim'. It provides a complete verb+resource+context combination that leaves no ambiguity about the tool's function.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage context through the example (installing apps on simulators) but doesn't explicitly state when to use this tool versus alternatives like 'launch_app_sim' or 'build_ios_sim_id_proj'. It provides mandatory parameter requirements but no comparative guidance about tool selection scenarios.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It mentions the required parameter but does not describe what 'booting' entails (e.g., whether it starts a virtual device, requires specific permissions, has side effects like resource consumption, or what happens on failure). This leaves significant gaps in understanding the tool's behavior.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is efficiently structured with two sentences: the first states the purpose, and the second provides critical usage guidance with an example. Every sentence earns its place, and it is front-loaded with essential information without unnecessary details.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's moderate complexity (single parameter, no output schema, no annotations), the description is adequate but incomplete. It covers the basic purpose and parameter requirement but lacks details on behavioral aspects like what 'booting' involves, potential errors, or dependencies, leaving room for improvement in context.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The schema description coverage is 100%, so the schema already documents the simulatorUuid parameter fully. The description adds minimal value by emphasizing the parameter's necessity and providing an example, but does not add meaning beyond what the schema provides, aligning with the baseline score for high schema coverage.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the specific action ('Boots') and resource ('an iOS simulator'), distinguishing it from sibling tools like 'open_sim' or 'list_sims'. It precisely communicates the tool's function without ambiguity.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides clear context by specifying that the simulatorUuid must be obtained from 'list_simulators', which implicitly guides when to use this tool. However, it does not explicitly state when to use alternatives like 'open_sim' or 'launch_app_sim', missing explicit exclusions or comparisons.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden for behavioral disclosure. It states the tool performs a build operation (implies mutation/write) and mentions required parameters, but doesn't describe what the build actually does (compiles code, creates .app file), where output goes, whether it's destructive to existing builds, authentication needs, or performance characteristics. For a build tool with zero annotation coverage, this is insufficient behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is perfectly front-loaded with the core purpose in the first sentence, followed by critical requirement information and a concrete example. Every sentence earns its place - the first states what it does, the second states requirements, and the third provides syntactic guidance. No wasted words or redundant information.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a build tool with 6 parameters, no annotations, and no output schema, the description is adequate but has clear gaps. It covers the basic purpose and requirements well, but doesn't explain what the build produces, where artifacts go, error conditions, or performance expectations. The lack of output schema means the description should ideally mention what gets returned, but it doesn't.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all 6 parameters thoroughly. The description adds minimal value beyond the schema by emphasizing that workspacePath and scheme are required and providing a usage example, but doesn't explain parameter interactions, default behaviors, or semantic meaning beyond what's in the schema descriptions.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the specific action ('Builds an iOS app'), target resource ('from a workspace'), and deployment target ('for a physical device'), which distinguishes it from sibling tools like 'build_ios_sim_id_ws' (simulator builds) and 'build_ios_dev_proj' (project-based builds). The verb+resource+target combination is precise and unambiguous.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explicitly states when to use this tool ('for a physical device') and provides required parameters (workspacePath and scheme), but doesn't explicitly mention when NOT to use it or name specific alternatives. The context implies it's for workspace-based iOS device builds, but lacks explicit exclusion guidance for simulator or project-based alternatives.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden but only states the tool 'builds and runs' without disclosing behavioral traits like whether this is a destructive operation, what permissions are needed, time/performance characteristics, error handling, or what happens to existing builds. The example helps but doesn't cover behavioral aspects.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is perfectly front-loaded with the core purpose in the first sentence, followed by important requirements and a concrete example. Every sentence earns its place with zero wasted words, making it highly efficient for an AI agent.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a complex build/run tool with 8 parameters and no annotations or output schema, the description is adequate but has clear gaps. It covers the basic purpose and requirements well, but lacks information about what the tool returns, error conditions, performance characteristics, or dependencies on other tools like 'list_sims' for obtaining simulatorId.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all 8 parameters thoroughly. The description adds minimal value by mentioning three required parameters in the text, but doesn't provide additional semantic context beyond what's in the schema descriptions.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose with specific verbs ('builds and runs') and resources ('iOS app from a workspace on a simulator specified by UUID'), distinguishing it from siblings like 'build_ios_sim_id_ws' (which only builds) and 'build_run_ios_sim_id_proj' (which uses a project instead of workspace).
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explicitly states when to use this tool by listing required parameters (workspacePath, scheme, simulatorId) and provides an example, but doesn't explicitly mention when not to use it or name alternatives like 'build_run_ios_sim_id_proj' for project-based builds versus workspace-based.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden of behavioral disclosure. While it mentions the required workspacePath parameter, it doesn't describe what 'clean' actually does (deletes derived data, build artifacts), whether it's destructive (it is), what permissions are needed, or what happens on success/failure. The example shows syntax but lacks behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is efficiently structured with two sentences: first states purpose and key requirement, second provides example usage. Every element earns its place with no redundant information. The example is appropriately brief and illustrative.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a destructive operation tool with no annotations and no output schema, the description is adequate but incomplete. It covers the basic purpose and parameter requirements but lacks critical behavioral information about what 'clean' entails, success/failure outcomes, or system impact. Given the complexity of a build system tool, more context would be helpful.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all 5 parameters thoroughly. The description adds minimal value beyond the schema by emphasizing workspacePath as required and scheme/configuration as optional, but doesn't provide additional semantic context about parameter usage or interactions.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the specific action ('Cleans build products'), target resource ('for a specific workspace'), and implementation method ('using xcodebuild'). It distinguishes from sibling tools like 'clean_proj' by specifying workspace cleaning rather than project cleaning.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides clear context about when to use this tool (when cleaning workspace build products) and explicitly states that workspacePath is required while scheme/configuration are optional. However, it doesn't explicitly mention when NOT to use it or name specific alternatives like 'clean_proj' for project cleaning.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It discloses key behavioral traits: it returns a session ID (important for tracking), and it defaults to capturing only structured logs (with an option to capture console output). However, it lacks details on permissions, rate limits, or what happens if the simulator is not running.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is front-loaded with the core action and result, followed by a default behavior note. It uses only two sentences with zero wasted words, making it highly efficient and easy to parse.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given no annotations and no output schema, the description is moderately complete. It covers the tool's purpose, return value (session ID), and default behavior, but lacks details on error handling, session management, or how the logs are accessed after capture, which could be important for a tool with mutation implications.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all parameters thoroughly. The description adds minimal value beyond the schema by implying the tool's purpose involves these parameters, but it does not provide additional context or usage examples for them.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the specific action ('Starts capturing logs'), the target resource ('from a specified simulator'), and the scope ('By default, captures only structured logs'). It distinguishes itself from sibling tools like 'stop_sim_log_cap' by indicating it initiates the process rather than terminates it.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage context by mentioning 'structured logs' and referencing 'list_simulators' in the schema, but it does not explicitly state when to use this tool versus alternatives like 'launch_app_logs_sim' or other logging-related tools. No exclusions or prerequisites are provided.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden for behavioral disclosure. While it implies a destructive action ('Stops'), it doesn't specify what 'stop' entails (e.g., graceful termination vs. force kill), whether it requires specific permissions, or what happens if the PID is invalid. This leaves significant behavioral gaps for a tool that terminates processes.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence that front-loads the core purpose and includes essential context about the sibling tool. Every word earns its place with zero redundancy or wasted space.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a destructive tool with no annotations and no output schema, the description is minimally adequate. It identifies the tool's purpose and relationship to 'swift_package_run', but lacks details about behavioral implications, error conditions, or return values that would be needed for full contextual understanding.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, with the single parameter 'pid' well-documented in the schema. The description doesn't add any meaningful parameter semantics beyond what's already in the schema, so it meets the baseline score of 3 for high schema coverage.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the specific action ('Stops') and target ('a running Swift Package executable'), and explicitly distinguishes it from its sibling 'swift_package_run' by referencing that tool as the starting mechanism. This provides precise verb+resource differentiation.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides clear context for when to use this tool ('started with swift_package_run'), establishing a direct relationship with its sibling. However, it doesn't explicitly state when NOT to use it or mention alternatives (e.g., other process termination methods), which prevents a perfect score.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden. It clearly indicates this is a build+run operation (implying mutation/execution) and specifies required parameters. However, it doesn't disclose behavioral traits like whether it waits for completion, returns logs/output, handles errors, or has side effects like installing the app first.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is appropriately sized with two sentences: first states purpose and requirements, second provides an example. It's front-loaded with essential information. The example could be slightly more concise, but overall it's efficient with zero wasted text.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a complex build+run tool with 8 parameters and no annotations/output schema, the description is adequate but incomplete. It covers the core purpose and requirements but lacks information about return values, error handling, execution behavior, and how it differs from similar sibling tools beyond the obvious project vs workspace distinction.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all 8 parameters thoroughly. The description only mentions the 3 required parameters in the text, adding minimal value beyond what's in the schema. This meets the baseline of 3 when schema does heavy lifting.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the specific action ('Builds and runs an iOS app'), resource ('from a project file'), and target ('on a simulator specified by UUID'). It distinguishes from sibling tools like 'build_ios_sim_id_proj' (which only builds) and 'build_run_ios_sim_id_ws' (which uses a workspace instead of project).
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explicitly states when to use this tool ('Requires projectPath, scheme, and simulatorId') and provides an example. However, it doesn't explicitly contrast with alternatives like 'build_run_ios_sim_name_proj' (which uses simulator name instead of UUID) or mention prerequisites like needing a booted simulator.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries full burden. It clarifies the tool extracts (read-only) data, mentions the mandatory 'appPath' parameter, and notes potential environment-specific prefixing, adding useful context. However, it doesn't detail error conditions, output format, or file access permissions.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is appropriately sized with three sentences: purpose, mandatory parameter note with example, and environment note. It's front-loaded with the core function, though the example could be more concise. No wasted sentences.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given no annotations and no output schema, the description is moderately complete for a simple extraction tool. It covers purpose and parameter usage but lacks details on return values, error handling, or dependencies. More behavioral context would improve completeness.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters4/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema fully documents the single parameter. The description adds minimal value by emphasizing the parameter's necessity and providing an example, but doesn't explain semantics beyond what the schema states. With 0 parameters, baseline is 4, but here it's 4 due to the example adding slight clarity.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the specific action ('Extracts') and target resource ('bundle identifier from an iOS app bundle (.app)'), distinguishing it from sibling tools like 'get_mac_bundle_id' which targets macOS. The purpose is precise and unambiguous.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage when an iOS bundle ID is needed from a .app file, but lacks explicit guidance on when to use this versus alternatives (e.g., 'get_mac_bundle_id' for macOS). It provides a mandatory parameter note but no broader context or exclusions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It discloses that the tool requires specific parameters and provides an example, but lacks details on error handling, performance, or what happens if parameters are invalid. It doesn't contradict annotations (none exist), but could offer more behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is front-loaded with the core purpose, followed by important requirements and an example. It's efficient with two sentences, though the example is detailed but necessary for clarity. No wasted words, but could be slightly more streamlined.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given no annotations and no output schema, the description is moderately complete for a tool with 6 parameters. It covers the purpose and required inputs but lacks details on return values, error cases, or dependencies (e.g., how simulatorId relates to 'list_sims'). Adequate but with gaps in full context.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all parameters thoroughly. The description adds minimal value by listing required parameters in the text and providing an example, but doesn't explain parameter interactions or semantics beyond what the schema provides. Baseline 3 is appropriate given high schema coverage.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb ('Gets') and resource ('app bundle path for a simulator by UUID using a project file'), making the purpose specific and actionable. It distinguishes from sibling tools like 'get_sim_app_path_name_proj' by specifying UUID-based lookup rather than name-based.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides clear context by stating it requires specific parameters (projectPath, scheme, platform, simulatorId) and includes an example, which helps guide usage. However, it doesn't explicitly state when to use this tool versus alternatives like 'get_sim_app_path_id_ws' or 'get_sim_app_path_name_proj', missing explicit sibling differentiation.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It mentions the IMPORTANT requirement for projectPath and scheme, which is useful behavioral context. However, it doesn't disclose other behavioral traits like what happens if the path doesn't exist, whether it validates inputs, or what the return format looks like.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is efficiently structured with two sentences: a clear purpose statement followed by a practical example. Every element serves a purpose with zero waste, making it easy to parse and understand quickly.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a tool with no annotations and no output schema, the description provides adequate basic context about purpose and required parameters. However, it doesn't explain what the tool returns (the app bundle path format) or potential error conditions, leaving gaps in understanding the complete tool behavior.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all three parameters thoroughly. The description adds minimal value beyond the schema by emphasizing that projectPath and scheme are required, but doesn't provide additional semantic context about parameter usage or relationships.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose with a specific verb ('Gets'), resource ('app bundle path'), and context ('for an iOS physical device application using a project file'). It distinguishes from sibling tools like 'get_ios_dev_app_path_ws' by specifying the project-based approach.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides clear context for when to use this tool (for iOS physical device apps with a project file) and mentions required parameters. However, it doesn't explicitly state when not to use it or name alternatives like 'get_ios_dev_app_path_ws' for workspace-based approaches.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It discloses that the tool stops an active session and returns logs, which covers basic behavior. However, it lacks details on error handling, side effects (e.g., whether logs are saved or deleted), or performance aspects like rate limits, leaving gaps in transparency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, well-structured sentence that efficiently conveys the tool's action, resource, and outcome without any redundant information. It is front-loaded with the core purpose, making it highly concise and effective.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness4/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's moderate complexity (a mutation operation with no annotations and no output schema), the description is reasonably complete. It covers the purpose, usage hint, and outcome, but could improve by detailing return format or error cases, slightly reducing completeness.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema fully documents the single parameter 'logSessionId'. The description adds no additional semantic context beyond what the schema provides (e.g., format or validation rules), resulting in the baseline score of 3.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the specific action ('stops') and resource ('an active simulator log capture session'), and distinguishes it from siblings by referencing 'start_sim_log_cap' as the initiating tool. It also mentions the outcome ('returns the captured logs'), making the purpose explicit and differentiated.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage context by referencing 'start_sim_log_cap' as the source of the session ID, suggesting this tool should be used after starting a capture. However, it does not explicitly state when not to use it or name alternatives, which prevents a perfect score.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden. It discloses the tool's purpose and a critical requirement (MUST provide appPath), but lacks details on behavioral traits like error handling, file system access implications, or output format. It adds some context but not comprehensive behavioral disclosure.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is appropriately sized and front-loaded: the first sentence states the purpose, followed by critical usage notes and an example. Every sentence earns its place with no waste, and the structure guides the user effectively.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness4/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's low complexity (1 parameter, 100% schema coverage, no output schema), the description is mostly complete. It covers purpose, usage, and parameter requirement, but lacks output details (e.g., what the bundle ID looks like) and error scenarios, which would enhance completeness for a tool with no annotations.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters4/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema fully documents the single parameter. The description adds minimal value beyond the schema by emphasizing the parameter's necessity ('MUST provide'), but does not explain semantics like path format or bundle structure. With 0 parameters beyond the one covered, baseline 4 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the specific action ('Extracts') and resource ('bundle identifier from a macOS app bundle (.app)'), distinguishing it from sibling tools like 'get_ios_bundle_id' which targets iOS. It provides precise scope and avoids tautology.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explicitly states when to use this tool (for macOS apps) and includes an IMPORTANT note about the required parameter, but does not specify when NOT to use it or name alternatives (e.g., 'get_ios_bundle_id' for iOS). It offers clear context without exclusions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior4/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden and does well by disclosing prerequisites (app must be installed), workflow context, and providing an example. It doesn't mention error conditions, timeouts, or what happens if the app is already running, but covers essential behavioral aspects.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is appropriately sized with three sentences that each earn their place: purpose statement, mandatory parameter emphasis, and workflow context with example. It's front-loaded with the core functionality. The example could be slightly more concise, but overall structure is effective.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness4/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a tool with no annotations and no output schema, the description does well by covering purpose, prerequisites, workflow context, and parameter usage. It could benefit from mentioning what the tool returns (success/failure status) or error conditions, but given the context, it's reasonably complete.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters4/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the baseline is 3. The description adds value by emphasizing that both simulatorUuid and bundleId are mandatory ('You MUST provide both'), explaining where to get simulatorUuid ('obtained from list_simulators' is implied in the example context), and providing a concrete example with format. However, it doesn't mention the optional 'args' parameter.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the specific action ('launches an app') and resource ('in an iOS simulator'), distinguishing it from sibling tools like 'install_app_sim' or 'launch_mac_app'. It precisely defines the tool's function without ambiguity.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines5/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explicitly states when to use this tool ('You must install the app in the simulator before launching') and provides a clear workflow context ('The typical workflow is: build → install → launch'). It distinguishes from installation tools by specifying the launch phase.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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