USCardForum MCP Server

Server Quality Checklist

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Latest release: v1.0.0
Disambiguation4/5
Most tools have distinct purposes, such as get_topic_posts for paginated fetching and get_all_topic_posts for automatic pagination, but some overlap exists between get_user_replies and get_user_actions, which could cause confusion. Overall, descriptions clarify boundaries, but minor ambiguity remains in user activity tools.
Naming Consistency5/5
All tool names follow a consistent verb_noun pattern with snake_case, such as get_topic_posts, search_forum, and bookmark_post. There are no deviations in naming conventions, making the set predictable and readable.
Tool Count3/5
With 22 tools, the count is borderline high for a forum server, as it includes many user-specific tools like get_user_followers and get_user_reactions that might be excessive. While comprehensive, it feels heavy and could overwhelm agents with overlapping user data retrieval.
Completeness5/5
The tool set provides complete coverage for forum operations, including authentication, topic and post retrieval, user profiling, notifications, bookmarks, and search. There are no obvious gaps; agents can perform full CRUD-like actions and navigate the forum effectively.
Average 4.3/5 across 22 of 22 tools scored. Lowest: 3.5/5.
See the Tool Scores section below for per-tool breakdowns.
- No community issues in the last 6 months
- 0 commits in the last 12 weeks
- No stable releases found
- No critical vulnerability alerts
- No high-severity vulnerability alerts
- No code scanning findings
- CI is failing
This repository is licensed under MIT License.
This repository includes a README.md file.
No tool usage detected in the last 30 days. Usage tracking helps demonstrate server value.
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{
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  ]
}
```
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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 the full burden. It mentions pagination and the return structure, but fails to disclose critical behavioral traits like authentication requirements, rate limits, error conditions (e.g., invalid username), or whether the data is real-time or cached. For a read operation with no annotation coverage, this leaves significant gaps.
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 well-structured with clear sections (purpose, args, returns, note) and front-loaded the core functionality. However, the final sentence about 'high follower count' is somewhat tangential and doesn't directly aid tool invocation, slightly reducing efficiency.
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 (2 parameters, read-only operation), the description covers purpose, parameters, and return values adequately, especially with an output schema implied by the 'Returns' section. However, it lacks context on authentication, errors, or performance limits, which are important for a user-facing API tool.
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 ('username' and 'page') fully. The description repeats the parameter info without adding meaningful context beyond what's in the schema, such as format examples for 'username' or default pagination behavior. 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 ('Fetch the list of users following a specific user'), identifies the resource ('users following a specific user'), and distinguishes it from siblings like 'get_user_following' (which fetches users being followed) and 'get_user_summary' (which provides general user info). The verb 'fetch' is precise and the scope is well-defined.
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 follower lists for a user, but provides no explicit guidance on when to use this tool versus alternatives like 'get_user_summary' (which might include follower count) or 'get_user_following'. It lacks clear exclusions or prerequisites, such as whether the user must exist or be public.
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?
No annotations are provided, so the description carries the full burden. It discloses that the tool fetches data (implied read-only) and mentions pagination via the offset parameter, but lacks details on rate limits, authentication needs, error handling, or what specific data is included in the UserReactions object. The description adds some behavioral context but is incomplete for a tool with no annotations.
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 well-structured and appropriately sized, with a clear purpose statement, parameter details, return value, and usage context in separate sentences. It is front-loaded with the main action. Minor redundancy in parameter descriptions slightly reduces efficiency, but overall it is 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 that there is an output schema (implied by 'Returns a UserReactions object'), the description does not need to explain return values in detail. It covers the tool's purpose, parameters, and usage context adequately. However, for a tool with no annotations, it could benefit from more behavioral details like authentication or rate limits to be fully complete.
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 (username and offset) fully. The description repeats the parameter information in the 'Args' section but does not add meaningful semantics beyond what the schema provides, such as format examples or constraints. Baseline 3 is appropriate when schema coverage is high.
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 ('Fetch') and resource ('a user's post reactions'), distinguishing it from sibling tools like get_user_actions or get_user_summary by focusing specifically on reactions (likes, etc.). The purpose is precise and not a tautology of the tool 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 context ('Use to see what content a user has reacted to, which can indicate their interests and values'), suggesting when this tool might be helpful. However, it does not explicitly state when to use this tool versus alternatives like get_user_actions or get_user_replies, nor does it provide exclusions or prerequisites.
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?
No annotations are provided, so the description carries the full burden. It discloses that the tool returns a Session object with specific fields (is_authenticated, current_user), which adds behavioral context beyond just stating the purpose. However, it doesn't mention potential errors, rate limits, or other operational details. The description adds some value but is not comprehensive.
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 concise and well-structured: it starts with the core purpose, details the return values in a bulleted list, and ends with usage guidance. Every sentence adds value without redundancy, making it easy to scan and understand.
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 (0 parameters, simple purpose) and the presence of an output schema (implied by 'Returns a Session object'), the description is fairly complete. It explains what the tool does and what it returns, though it could benefit from more behavioral context (e.g., error cases). The output schema reduces the need for detailed return value explanations.
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 input schema has 0 parameters with 100% coverage, so no parameter documentation is needed. The description appropriately doesn't discuss parameters, which is efficient. Baseline is 4 for zero parameters, as it avoids unnecessary details.
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: 'Get information about the current session.' It specifies the verb ('Get') and resource ('current session'), but doesn't explicitly differentiate it from sibling tools like 'login' or 'get_user_summary', which might also relate to authentication or user data. The purpose is clear but lacks 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 Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides clear usage context: 'Use to verify authentication status.' This indicates when to use the tool (for checking login state), but doesn't explicitly state when not to use it or name alternatives among siblings (e.g., 'login' for authentication actions). The guidance is helpful but not exhaustive.
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 the full burden of behavioral disclosure. It effectively describes what the tool returns (a UserBadges object with specific fields) and explains the significance of badges (e.g., participation milestones, community recognition). It also clarifies the default behavior for the 'grouped' parameter. However, it does not cover potential errors, rate limits, or authentication needs, leaving some behavioral aspects unspecified.
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 well-structured with clear sections (purpose, args, returns, badge significance, usage), making it easy to parse. It is appropriately sized, though the 'Args' section slightly repeats schema information. Most sentences add value, such as explaining badge types and usage context, with minimal waste.
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 (2 parameters, no annotations, but with an output schema), the description is largely complete. It explains the purpose, parameters, return structure, and usage context. Since an output schema exists, it does not need to detail return values extensively. However, it could improve by addressing potential errors or authentication requirements, which are not covered.
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%, meaning the input schema already documents both parameters ('username' and 'grouped') with descriptions and defaults. The description repeats some of this information in the 'Args' section but adds minimal extra meaning beyond what the schema provides, such as clarifying that 'username' is a handle. 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 ('Fetch') and resource ('badges earned by a user'), making the purpose specific. It distinguishes this tool from siblings like 'get_user_summary' or 'list_users_with_badge' by focusing on badge retrieval for a specific user rather than general user data or badge listings across users.
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 by stating 'Use to assess user experience and trustworthiness,' which gives context for when to employ this tool. However, it lacks explicit guidance on when to choose this over alternatives like 'get_user_summary' or 'list_users_with_badge,' and does not mention any exclusions or prerequisites.
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?
No annotations are provided, so the description carries the full burden. It discloses that the tool returns a FollowList object with details like pagination (via the 'page' parameter and 'total_count'), which adds behavioral context. However, it lacks information on rate limits, authentication needs, or error handling, leaving gaps for a tool with no annotations.
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 and front-loaded with the core purpose, followed by structured sections for args, returns, and usage. Every sentence earns its place, but the repetition of parameter details in 'Args:' could be slightly trimmed since they're covered in the schema, keeping it efficient but not perfectly concise.
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 complexity (simple read operation with pagination), no annotations, and the presence of an output schema (which covers return values), the description is mostly complete. It explains the purpose, parameters, returns, and usage context. However, it lacks details on behavioral aspects like rate limits or errors, 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.
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 ('username' and 'page') fully. The description repeats the parameter info in the 'Args:' section but adds no additional meaning beyond what the schema provides, such as format examples or constraints. Baseline 3 is appropriate as the schema handles 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 ('Fetch the list of users that a user follows') with the resource ('users'), distinguishing it from sibling tools like get_user_followers (which fetches followers) and get_user_summary (which provides a summary). The verb 'fetch' is precise and the scope is well-defined.
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 'Use to:' section provides clear context for when to use this tool (e.g., 'Discover influential users in the community'), but it does not explicitly state when not to use it or name alternatives. For example, it doesn't contrast with get_user_followers or other user-related tools, though the purpose is distinct enough to imply usage.
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 results are sorted by engagement score and paginated, which are key behavioral traits. However, it doesn't mention rate limits, authentication needs, or error handling, leaving some gaps for a tool with no annotation coverage.
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 well-structured with clear sections (purpose, args, usage, returns, example), front-loaded key information, and every sentence adds value without redundancy. It's appropriately sized for a tool with two parameters and clear functionality.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's moderate complexity, 100% schema coverage, and presence of an output schema (implied by 'Returns TopicSummary objects'), the description is complete enough. It covers purpose, parameters, usage contexts, return format, and provides examples, addressing all necessary aspects without needing to explain return values in detail.
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 parameters. The description adds minimal value by listing enum values for 'period' and explaining pagination, but doesn't provide additional semantics beyond what's in the schema, meeting the baseline for high 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 tool's purpose with specific verb ('fetch') and resource ('top-performing topics'), and distinguishes it from siblings like 'get_hot_topics' or 'get_new_topics' by focusing on performance ranking over time periods rather than recency or popularity alone.
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 'Use this to' section provides clear contexts for when to use the tool (e.g., finding valuable discussions, researching historical threads, identifying evergreen content), but it doesn't explicitly state when not to use it or name alternatives among siblings like 'get_hot_topics' for current trends.
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?
No annotations are provided, so the description carries the full burden. It discloses that the tool fetches an activity feed with optional filtering and pagination, and mentions it returns 'a list of UserAction objects.' However, it lacks details on rate limits, authentication needs, error conditions, or the structure of UserAction objects. For a tool with no annotations, this is a moderate disclosure but misses key 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 and front-loaded, starting with the core purpose. The bulleted list for filter values is efficient, and the usage guidelines are concise. However, the 'Args:' section slightly duplicates schema information, and the structure could be more streamlined by integrating the parameter details into the main flow without separate headings.
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 (3 parameters, 1 required), 100% schema coverage, and the presence of an output schema (implied by 'Returns a list of UserAction objects'), the description is largely complete. It covers purpose, usage guidelines, and basic parameter context. The main gap is the lack of behavioral details like rate limits or auth requirements, but the output schema reduces the need to explain return values in the description.
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: it repeats the filter values in a bulleted list and clarifies the offset as 'Pagination offset (0, 30, 60, ...)', which is already in the schema. This meets the baseline of 3 since the schema does the heavy lifting, but the description doesn't add significant semantic context.
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 ('Fetch a user's activity feed') and resource ('user'), distinguishing it from sibling tools like get_user_replies or get_user_topics by emphasizing it provides 'detailed activity analysis beyond just replies.' This explicitly differentiates its broader scope from more focused sibling tools.
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 versus alternatives: 'Use this for detailed activity analysis beyond just replies. For most cases, get_user_replies or get_user_topics are simpler.' This clearly defines the context (detailed analysis) and names specific simpler alternatives, helping the agent choose appropriately.
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?
No annotations are provided, so the description carries the full burden. It mentions pagination via the 'offset' parameter and implies read-only behavior by describing a list operation, but lacks details on rate limits, authentication needs, or what specific information is included in the returned dictionary. The description adds some behavioral context but is incomplete for a tool with no annotations.
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 well-structured and front-loaded with the core purpose, followed by parameter details and usage context. Every sentence earns its place without redundancy, making it efficient and easy to parse.
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 that an output schema exists, the description does not need to explain return values. It covers the tool's purpose, parameters, and usage context adequately. However, with no annotations and a read operation, it could benefit from more behavioral details like pagination behavior or error handling, leaving minor gaps.
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 documents both parameters fully. The description adds minimal value by briefly mentioning 'badge_id' and 'offset' in the Args section, but does not provide additional semantics beyond what the schema offers. With high schema coverage, the baseline is 3, but the explicit Args listing slightly enhances clarity, warranting a 4.
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 ('List all users who have earned a specific badge') with the resource ('users'), distinguishing it from sibling tools like 'get_user_badges' (which gets badges for a user rather than users for a badge). 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 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 ('Use to find community members with specific achievements or recognition levels'), which helps differentiate it from general user-related tools. However, it does not explicitly mention when not to use it or name specific alternatives among siblings, such as 'get_user_badges' for a different perspective.
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 authentication requirement ('REQUIRES AUTHENTICATION'), pagination behavior ('Maximum number to return'), and filtering capabilities. It doesn't mention rate limits or error conditions, but covers core behavioral aspects adequately.
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?
Well-structured with clear sections (Args, Returns, Use to), but could be more concise. The authentication warning appears twice ('REQUIRES AUTHENTICATION' and 'Must call login() first'), and the parameter descriptions repeat schema content. However, information is front-loaded and organized effectively.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a read operation with 3 parameters and an output schema, the description is complete. It covers authentication requirements, parameter usage, return format details, and specific use cases. With an output schema present, it doesn't need to explain return values in detail, and it provides adequate context for the tool's purpose and 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 fully documents all three parameters. The description repeats the parameter information in the Args section but doesn't add meaningful 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 verb 'fetch' and resource 'notifications', distinguishing it from siblings like get_user_actions or get_user_replies which focus on different data. It specifies it's for 'your notifications' (personal notifications) rather than system-wide notifications.
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?
Explicitly states 'Must call login() first' for authentication prerequisite, and provides three specific use cases: 'Check for new replies to your posts', 'See mentions and likes', and 'Track topic updates you're watching'. This gives clear context for when to use this tool versus alternatives.
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 the full burden of behavioral disclosure. It effectively describes the tool's behavior: it's a read-only operation (implied by 'Get metadata'), returns a TopicInfo object with specific fields, and includes practical advice like handling large topics with batch fetching. However, it doesn't mention potential errors, rate limits, or authentication needs, leaving some gaps.
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 well-structured with clear sections (purpose, args, usage, returns, strategy) and is appropriately sized. However, the 'Args' section is redundant with the schema, and the strategy section, while helpful, could be more concise. Overall, it's efficient but has minor verbosity.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's complexity (simple read operation), 100% schema coverage, and the presence of an output schema (implied by the 'Returns' section), the description is complete. It covers purpose, usage, parameters, return values, and strategic advice, leaving no significant gaps for an AI agent to understand and invoke the tool correctly.
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 input schema already documents the topic_id parameter. The description repeats the same information in the 'Args' section without adding new semantics beyond what's in the schema. This meets the baseline of 3, as the schema does the heavy lifting, but no extra value is provided.
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: 'Get metadata about a specific topic without fetching all posts.' It specifies the verb ('Get metadata') and resource ('a specific topic'), and distinguishes it from sibling tools like get_all_topic_posts and get_topic_posts by emphasizing it doesn't fetch posts, focusing only on metadata.
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: 'Use this FIRST before reading a topic to...' and includes a 'Strategy for large topics' section with thresholds (e.g., <50 posts: safe to fetch all at once). It implicitly distinguishes from alternatives like get_all_topic_posts by advising on pagination planning.
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 the full burden of behavioral disclosure. It effectively describes key behaviors: it's a read operation (implied by 'Fetch'), pagination details (offset increments of 30), and the return format (list of UserAction objects with specific fields). It doesn't mention rate limits, authentication needs, or error conditions, but provides substantial operational 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 well-structured with clear sections (purpose, args, returns, usage, pagination note) and appropriately sized. Every sentence adds value, though the parameter section slightly duplicates schema information. It's front-loaded with the core purpose first.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's moderate complexity, 100% schema coverage, and the presence of an output schema (implied by the detailed return description), the description is complete enough. It covers purpose, parameters, return format, usage scenarios, and pagination behavior, providing all necessary context for effective tool selection and 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%, so the schema already fully documents both parameters. The description repeats the parameter information verbatim without adding additional semantic context beyond what's in the schema (e.g., format examples for username, constraints for offset). The baseline of 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 tool's purpose with a specific verb ('Fetch') and resource ('replies/posts made by a user in other topics'), distinguishing it from siblings like 'get_user_topics' (which would fetch topics created by the user) and 'get_user_actions' (which might include other action types). It precisely defines what the tool retrieves.
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 provides usage guidelines with 'Use this to:' followed by three specific scenarios (see contributions, find data points, evaluate participation), giving clear context for when to use this tool. It also mentions pagination behavior, which is a practical usage instruction.
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 the full burden of behavioral disclosure and does so effectively. It explains the session persistence ('The session remains authenticated for subsequent calls'), security handling ('Credentials are used only for this session and are not persisted'), and return format details. It doesn't mention rate limits or specific error conditions, preventing a perfect score.
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 well-structured with clear sections (purpose, args, usage guidance, returns, behavioral notes). It's appropriately sized for a security-sensitive authentication tool, though the parameter section duplicates schema information, preventing a perfect score for conciseness.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For an authentication tool with no annotations but with output schema, the description provides excellent contextual completeness. It covers purpose, usage guidance, parameter overview, return value details, session behavior, and security considerations. The presence of an output schema means the description doesn't need to fully document return values, and it effectively supplements the structured data.
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 three parameters. The description repeats the parameter information in the Args section but doesn't add meaningful semantic context beyond what's in the schema. This meets the baseline expectation when schema coverage is complete.
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 ('Authenticate with USCardForum credentials') and distinguishes this authentication tool from its many sibling tools that perform read operations. It explicitly identifies the resource being accessed (forum credentials) and the verb (authenticate).
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 ('Only use this if you need authenticated features like...') and when not to use it ('Most read operations work without authentication'). It clearly differentiates this authentication tool from the many read-only sibling tools listed.
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 the full burden of behavioral disclosure. It successfully communicates: 1) authentication requirement ('REQUIRES AUTHENTICATION'), 2) that this is a write operation (implied by 'Bookmark' and 'Returns a Bookmark object'), 3) the return type ('Returns a Bookmark object'), and 4) the purpose ('save interesting posts for later reference'). It doesn't mention rate limits, error conditions, or idempotency, but covers the essential behavioral aspects for a bookmarking tool.
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 well-structured with clear sections: purpose statement, authentication requirement, parameter details, prerequisite, return value, and usage guidance. Every sentence serves a purpose, though the auto_delete_preference explanation is somewhat lengthy. It's appropriately sized for a 5-parameter tool with authentication requirements.
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 that there's an output schema (implied by 'Returns a Bookmark object'), the description doesn't need to detail return values. It covers authentication requirements, parameter semantics, and usage context effectively. The main gap is lack of information about reminder_type values, but overall it provides sufficient context for an agent to use this tool correctly alongside its sibling read-only tools.
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 significant value by: 1) providing a clear enumeration of auto_delete_preference options with explanations (0-3 with meanings), 2) specifying ISO format for reminder_at, and 3) clarifying that name is 'Optional label/name for the bookmark'. This goes well beyond what the schema provides, though it doesn't explain reminder_type values.
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 ('Bookmark a post for later reference') and distinguishes it from all sibling tools which are primarily get/read operations (e.g., get_topic_posts, get_user_actions). It identifies the resource (post) and verb (bookmark) precisely.
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 usage guidance: 'Must call login() first' (prerequisite), 'Use to save interesting posts for later reference' (when-to-use), and distinguishes this as a write/mutation tool versus the many read-only sibling tools. It clearly indicates this is for saving posts versus the sibling tools which retrieve information.
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 the full burden and does well by disclosing key behaviors: it returns a CategoryMap object, includes both main and subcategories, and lists common category examples. It does not cover potential limitations like rate limits or auth needs, but provides useful context beyond basic functionality.
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 well-structured and front-loaded, starting with the core purpose and return value, followed by examples and usage scenarios. Every sentence adds value, such as explaining category organization and practical applications, with no wasted words or redundancy.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's low complexity (0 parameters), high schema coverage (100%), and presence of an output schema (true), the description is complete. It explains what the tool does, what it returns, and how to use the output, covering all necessary context without needing to detail parameters or return values explicitly.
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?
There are 0 parameters, and schema description coverage is 100%, so the baseline is 4. The description appropriately does not discuss parameters, focusing instead on output and usage, which adds value without redundancy.
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 'Get' and resource 'mapping of all forum categories', specifying it returns a CategoryMap object. It distinguishes from siblings by focusing on category mapping rather than topics, posts, users, or other forum entities, 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 on when to use this tool, such as for filtering search results, understanding topic sections, and navigation. However, it does not explicitly state when not to use it or name alternatives among sibling tools, leaving some guidance implicit rather than explicit.
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 explaining the ranking logic ('engagement metrics like recent replies, views, and likes'), pagination behavior, and response interpretation. It doesn't mention rate limits or authentication needs, but covers core behavioral aspects adequately.
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 well-structured with clear sections (purpose, usage guidelines, parameters, returns, examples), front-loaded with the core purpose, and every sentence adds value without redundancy. It's appropriately sized for the tool's complexity.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's moderate complexity, no annotations, but with output schema (implied by 'Returns a list of TopicSummary objects'), the description provides complete context: clear purpose, usage guidelines, parameter explanation, return format details, and practical interpretation examples, covering all necessary aspects.
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 baseline is 3. The description adds minimal value beyond the schema by clarifying 'Use page=1 to get more topics', but doesn't provide additional semantic context about parameter behavior or constraints.
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 ('fetch trending/hot topics') and resource ('from USCardForum'), distinguishing it from siblings like get_top_topics, get_new_topics, or get_categories by specifying it's based on current engagement metrics.
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 provides usage scenarios ('See what the community is currently discussing', 'Find breaking news', 'Discover popular ongoing discussions') and distinguishes it from alternatives by noting the returned data can be used with get_topic_posts, offering clear guidance on when to use this tool.
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 an excellent job disclosing key behavioral traits: automatic pagination handling, performance considerations for large topics, safety limits via max_posts, and relationship to sibling tool's return structure. It doesn't mention rate limits or authentication requirements, but provides substantial operational guidance.
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 well-structured with clear sections (purpose, args, pagination note, important warning, use cases, returns, pro tip) and every sentence adds value. It's slightly longer than minimal but efficiently communicates complex functionality. The front-loaded purpose statement immediately conveys the tool's core value.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's complexity (automatic pagination, multiple filtering parameters) and the presence of an output schema (which handles return value documentation), this description is exceptionally complete. It covers purpose, usage guidelines, parameter interactions, performance considerations, sibling tool relationships, and practical examples - everything needed for effective tool selection and invocation.
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?
With 100% schema description coverage, the baseline is 3, but the description adds significant value beyond the schema by explaining parameter interactions and practical usage patterns. The use cases section demonstrates how parameters work together, and the IMPORTANT note clarifies when to use max_posts versus start/end parameters.
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 verb ('fetch') and resource ('all posts from a topic'), and distinguishes it from sibling 'get_topic_posts' by emphasizing automatic pagination for complete topic retrieval. The title 'get_all_topic_posts' aligns perfectly with this functionality.
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 versus alternatives, including: recommending 'get_topic_info first to check post_count before deciding whether to fetch all or paginate manually', suggesting 'max_posts' for topics with many posts (>100), and providing multiple concrete use cases with parameter examples.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior5/5
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 effectively describes key traits: it's a read operation (implied by 'Fetch'), specifies batch size ('~20 posts per call'), explains pagination behavior, and details the return format with Post object fields. This covers essential behavioral aspects without contradictions.
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 well-structured with clear sections (purpose, args, returns, example) and front-loaded key information. It is appropriately sized for the tool's complexity, though the detailed return field list and pagination example are slightly verbose but justified for clarity. A minor deduction for length keeps it at 4.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's moderate complexity, no annotations, and an output schema (implied by the detailed return description), the description is complete. It covers purpose, usage, parameters, behavior, and output format, providing all necessary context for an agent to use the tool effectively without 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%, meaning the input schema already documents all parameters thoroughly. The description repeats parameter info in the 'Args' section without adding significant meaning beyond the schema, such as edge cases or constraints. This meets the baseline 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 tool's purpose with a specific verb ('Fetch') and resource ('posts from a topic'), and distinguishes it from siblings like 'get_all_topic_posts' by specifying it fetches a batch starting at a position, not all posts. This explicit differentiation earns the highest score.
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 usage guidelines: it states 'Use for paginated reading of topics' and includes a detailed pagination example with steps, clearly indicating when to use this tool versus alternatives like 'get_all_topic_posts' for non-paginated access. This comprehensive guidance merits a score of 5.
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 the full burden and does well by disclosing key behaviors: it describes the sorting order ('newest first'), notes that topics may have fewer replies, explains pagination behavior, and details the return structure. However, it doesn't mention potential rate limits or authentication requirements, which could be relevant for a forum API.
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 well-structured and front-loaded with the core purpose, followed by usage guidelines, parameter details, return values, and a helpful tip. Every sentence adds value without redundancy, making it efficient and easy to parse.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's moderate complexity (1 parameter, read-only operation), no annotations, and the presence of an output schema, the description is complete: it covers purpose, usage, parameter semantics, return values, and behavioral context, leaving no significant gaps for an agent to understand and invoke the tool correctly.
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 explaining the pagination logic ('0-indexed', 'Use page=1 to get more topics') and providing context about what 'page' represents in this specific tool, elevating it above the baseline.
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 ('fetch', 'returns') and resources ('latest/newest topics from USCardForum'), distinguishing it from siblings like get_hot_topics or get_top_topics by emphasizing recency and freshness rather than popularity or ranking.
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?
It provides explicit usage scenarios ('Find newly posted deals', 'See fresh questions', 'Discover emerging discussions') and includes a tip about high view counts, offering clear guidance on when to use this tool versus alternatives like search_forum or get_hot_topics for different types of content discovery.
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 the full burden of behavioral disclosure. It effectively describes the tool's behavior by specifying what data is returned (UserSummary object with detailed fields), its purpose for evaluation, and its efficiency advantage over fetching individual histories. However, it doesn't mention potential limitations like rate limits or authentication needs.
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 well-structured and front-loaded, starting with the core purpose, followed by parameter and return details, and ending with usage guidelines. Every sentence adds value without redundancy, making it efficient and easy to parse.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's moderate complexity, no annotations, and the presence of an output schema (implied by the Returns section), the description is complete. It covers purpose, parameters, return values, and usage context adequately, leaving no significant gaps for an AI agent to understand and invoke the tool correctly.
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 reiterating the parameter's purpose ('The user's handle') and noting it's case-insensitive, which provides useful context beyond the schema's basic documentation, though it doesn't introduce new parameter details.
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 ('Fetch') and resource ('comprehensive summary of a user's profile'), distinguishing it from siblings like get_user_badges or get_user_topics by emphasizing it provides a holistic overview rather than specific data points.
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 outlines when to use this tool ('to evaluate credibility, find valuable contributions, understand participation level') and distinguishes it from alternatives by noting it provides 'a quick overview without fetching individual post histories,' which helps differentiate it from more granular sibling tools.
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 the full burden of behavioral disclosure. It effectively describes the tool's behavior: it fetches data (read-only implied by 'Fetch'), returns a list of topic objects with specific fields, and includes pagination guidance. It doesn't mention rate limits or authentication needs, but covers the core functionality well.
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 well-structured and front-loaded with the core purpose, followed by parameter details, return format, usage guidelines, and pagination instruction. Every sentence adds value with no redundancy or wasted words.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's moderate complexity, 100% schema coverage, and the presence of an output schema (implied by the detailed return format description), the description is complete. It covers purpose, parameters, return values, usage scenarios, and behavioral aspects like pagination, providing all necessary context for effective tool use.
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 documents both parameters. The description adds value by explaining the pagination behavior ('Paginate by incrementing the page parameter') and clarifying the username as 'user's handle', which provides practical usage context beyond the schema's basic 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 ('Fetch topics created by a specific user') and resource ('topics'), distinguishing it from sibling tools like get_user_replies or get_user_summary by focusing on topics initiated by the user rather than replies or general user data.
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 provides usage scenarios ('See what discussions a user has initiated', 'Find expert users in specific areas', 'Research a user's areas of interest'), giving clear context for when to use this tool versus alternatives like get_user_replies or get_topic_info.
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 the full burden of behavioral disclosure. It successfully reveals key traits: authentication requirement ('REQUIRES AUTHENTICATION'), mutation nature (implied by 'Set'), and return format ('Returns a SubscriptionResult with...'). However, it doesn't mention potential side effects like rate limits or whether this affects other users' notifications.
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 well-structured and front-loaded: purpose first, then authentication requirement, followed by parameter details, prerequisites, return values, and usage examples. Every sentence serves a distinct purpose with zero wasted text. The bulleted lists improve readability without adding fluff.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5
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 parameters, authentication requirement), the description provides complete context. It covers purpose, authentication, parameters, prerequisites, return values, and usage scenarios. With an output schema present, it appropriately doesn't over-explain return values. This is comprehensive for a subscription management tool.
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 documents both parameters thoroughly. The description adds marginal value by restating the level enum meanings in a more readable format and emphasizing the default value context. This slightly enhances understanding beyond the schema's technical documentation.
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 starts with a clear verb+resource statement: 'Set your notification level for a topic.' It specifically distinguishes this tool from siblings like 'get_topic_info' or 'get_notifications' by focusing on subscription management rather than information retrieval. The purpose is immediately apparent 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 Guidelines5/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides explicit usage guidance: 'Must call login() first' establishes a prerequisite, and the 'Use to:' section lists specific scenarios (watch topics, mute noisy topics, track contributions) with corresponding level values. This gives clear context for when to use this tool versus alternatives like 'get_notifications' for reading notifications.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior5/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden and excels by disclosing key behavioral traits: it explains the search functionality, pagination behavior (increment page parameter if more results exist), and the structure of the return object. It also details query operators and sort options, which are critical for effective tool use.
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 well-structured and front-loaded, starting with the core purpose, followed by detailed parameter explanations, return value description, and practical examples. Every sentence adds value, such as the operator examples and pagination note, with no redundant or unnecessary information.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's complexity (search with operators and pagination), no annotations, and the presence of an output schema, the description is highly complete. It covers purpose, usage, parameters, return values, and behavioral aspects like pagination, leaving no gaps for an AI agent to understand and invoke the tool correctly.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters5/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Despite 100% schema description coverage, the description adds significant value beyond the schema by providing detailed examples of query operators (e.g., 'in:title', '@username') and sort order options with practical use cases. It clarifies parameter interactions, such as how 'page' works with pagination, enhancing understanding beyond the basic schema definitions.
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 ('Search') and resource ('USCardForum for topics and posts'), distinguishing it from sibling tools like 'get_hot_topics' or 'get_new_topics' which retrieve predefined lists rather than performing custom searches. It explicitly mentions what is being searched (topics and posts) and matches the tool name directly.
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 (searching with a query) and includes example queries that illustrate common use cases. However, it does not explicitly state when not to use it or name specific alternatives among sibling tools, such as using 'get_topic_info' for detailed topic information instead of search results.
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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