prefect-mcp-server

Official

by PrefectHQ

Overview Schema Related Servers Score Discussions

Python

Hybrid

Server Quality Checklist

Profile completionA complete profile improves this server's visibility in search results.

Latest release: v0.1.0
Disambiguation5/5
All tools have clearly distinct purposes: each targets a specific Prefect entity (automations, dashboard, deployments, flow runs, flows, etc.) with no overlapping functionality. The descriptions make it easy for an agent to select the appropriate tool.
Naming Consistency5/5
Tool names follow a consistent verb_noun pattern with underscores, predominantly using 'get_' for retrieval operations. Minor deviations like 'docs_search_prefect', 'read_events', and 'orientation' are still clear and fit the overall schema.
Tool Count5/5
With 14 tools, the server is well-scoped for Prefect monitoring and inspection. Each tool serves a distinct function without unnecessary redundancy, covering all key entities and operations relevant to the domain.
Completeness3/5
The tool set covers all major entities for observation (flows, deployments, runs, work pools, automations, events, rate limits), but lacks any mutation or management capabilities (create, update, delete). This is a notable gap for a comprehensive Prefect interface, though internally consistent for a read-only server.
Average 3.8/5 across 14 of 14 tools scored. Lowest: 2.4/5.
See the Tool Scores section below for per-tool breakdowns.
- No community issues in the last 6 months
- 28 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.
Tip: use the "Try in Browser" feature on the server page to seed initial usage.
Add a glama.json file to provide metadata about your server.
If you are the author, simply .
If the server belongs to an organization, first add glama.json to the root of your repository:
```
{
  "$schema": "https://glama.ai/mcp/schemas/server.json",
  "maintainers": [
    "your-github-username"
  ]
}
```
Then . Browse examples.
Add related servers to improve discoverability.

How to sync the server with GitHub?

Servers are automatically synced at least once per day, but you can also sync manually at any time to instantly update the server profile.

To manually sync the server, click the "Sync Server" button in the MCP server admin interface.

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 must disclose behavioral traits. It only says 'Get', implying a read operation, but fails to highlight that the object_type is constrained to a single value (automation). It does not mention idempotency, rate limits, or any 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.
Conciseness2/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single sentence, which is concise but under-specified. It lacks any structure or additional detail that would help an agent. Every sentence should earn its place; this one is too minimal to be fully useful.
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 presence of an output schema (which likely documents return values), the description still needs to explain the tool's purpose and constraints. It fails to mention the restriction to automation, making it incomplete for an agent to use 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?
Schema description coverage is 100% (the parameter has a description and an example). The tool description adds no additional meaning beyond what the schema already provides, so it meets the baseline for high coverage.
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 states the tool retrieves a schema for an object type, which is clear but overly generic. It does not mention that the only supported object_type is 'automation', making it less precise than it could be. It loosely distinguishes from siblings that retrieve instances (e.g., get_flows) rather than schemas.
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 on when to use this tool vs alternatives. It does not specify that it is limited to the 'automation' type, nor does it provide context on prerequisites or use cases. An agent would have no help deciding to use this over sibling tools.
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 provided, and the description only says 'get oriented' without disclosing what happens (e.g., returns capabilities list, instructions). The description does not compensate for missing 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?
Single sentence, front-loaded with the action word 'Use'. No wasted words, but could still add more substance without losing conciseness.
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?
Although the tool is simple with no parameters and an output schema exists, the description is vague. It could explain what 'orientation' provides (e.g., introduction to endpoints) to be more 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?
No parameters exist, schema coverage is 100% trivially. Baseline 3 is appropriate; the description adds nothing about parameters since there are none.
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 states 'get oriented with the Prefect MCP server', which is a clear verb+resource. It distinguishes from siblings like 'get_flows' or 'docs_search_prefect' by being the only orientation 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?
The description says 'Use this tool' but provides no guidance on when to use it vs. alternatives, no explicit context or exclusions. Implied for first-time users, but no explicit when-not.
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 explains what the tool returns (statistics, status, concurrency limits) but does not disclose behavioral traits like side effects, permissions, or error conditions. Adequate but limited.
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 two sentences, front-loaded with purpose and content details. Efficient with no fluff, though slightly verbose in listing all concurrency limit types.
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 an output schema, the description does not need to explain return values. However, it fails to describe the single optional parameter, leaving a gap. Adequate for the main functionality but incomplete for full usage.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters1/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has one parameter (workspace_id) with 0% description coverage, meaning the schema provides no meaning. The tool description does not mention or explain this parameter at all, leaving the agent without guidance on when or how to use it.
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 gets a high-level dashboard overview and lists specific data returned (flow run statistics, work pool status, concurrency limits). It distinguishes from siblings by aggregating multiple types into one overview.
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 mentions it is 'essential for diagnosing flow run delays and bottlenecks,' implying a usage context. However, it does not explicitly state when to use this tool versus alternatives or provide any 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 bears full responsibility for behavioral disclosure. It only states what the tool does (search) but omits traits like rate limits, authentication needs, output format hints, or whether it's read-only. The minimal description leaves agents uninformed about side effects or constraints.
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?
Single sentence, no wasted words, front-loaded with the core action and resource. Efficient and to the point.
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 presence of an output schema, the description need not detail return values. It adequately covers the tool's domain (concepts, usage examples, best practices). Some mention of scope (e.g., that it returns excerpts) would improve completeness, but overall sufficient.
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. The description adds no further semantic detail beyond the schema's explanations (e.g., 'a search query' vs description's generic phrasing). 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 a specific verb ('Search') and resource ('Prefect knowledgebase'), and distinguishes from sibling tools like get_flows or get_automations which retrieve specific data objects rather than documentation excerpts.
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 on when to use this tool vs alternatives. The description does not mention when not to use it, nor does it suggest alternatives for different use cases. Given siblings cover automation, dashboard, deployments, etc., some differentiation would help.
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 for behavioral traits. It does not disclose whether the operation is read-only, any rate limits, or ordering of results. The description only states what is retrieved, lacking deeper 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 concise with a clear purpose statement and examples. However, the two examples are very similar and could be combined. It is front-loaded with the primary action, making it efficient for quick scanning.
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 simplicity (3 parameters, one required, output schema exists), the description adequately covers the core functionality. It does not mention pagination or default ordering, but the limit parameter addresses page size. For a log retrieval tool, it is reasonably 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 67% (two of three parameters have descriptions in the schema). The description adds little beyond the schema, only using placeholders in examples. It does not explain the workspace_id parameter's role or format beyond the schema, so it meets the baseline but adds minimal 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 that the tool retrieves execution logs for a flow run, including specific attributes like timestamps, log levels, and messages. It distinguishes itself from sibling tools like get_task_runs and get_flow_runs by focusing specifically on logs for a flow run.
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 examples of usage but does not give explicit guidance on when to use this tool versus alternatives like get_task_runs for task-level logs. There is no mention of when not to use it or prerequisites, but the examples help imply typical 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?
No annotations are provided, so the description carries the full burden. It explains that the tool returns a list of flows and supports filtering with operators. It does not disclose any risks, side effects, or required permissions. The description adds value beyond the schema by explaining the filter operators, but lacks explicit read-only assurance or mention of pagination behavior (though limit is documented).
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 relatively concise, using bullet points for operators and examples for clarity. It front-loads the purpose and then provides actionable details. No extraneous sentences; each part contributes to understanding.
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 (not shown but indicated), the description does not need to detail return values. It covers the core functionality, filter operators, and parameter defaults (via schema). It is complete enough for an agent to understand when and how to use this tool, though it could mention workspace_id context more 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?
The input schema has 67% description coverage (two of three parameters have descriptions in the schema). The description adds significant meaning by explaining the filter operators (any_, like_, all_) and providing concrete examples for each parameter. This helps an agent construct valid filter objects beyond what the schema's terse description ('JSON filter object') provides.
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 'Get flows with optional filters' and 'Returns a list of flows registered in the workspace.' This provides a specific verb and resource. While it distinguishes from siblings like get_flow_runs and get_deployments by focusing on flows themselves, it does not explicitly differentiate from related tools like get_automations.
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 a list of filter operators and examples, giving implicit guidance on how to use filters (e.g., any_, like_, all_). However, it does not explicitly state when to use this tool versus alternatives such as get_flow_runs or get_deployments, nor does it mention any prerequisites 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?
No annotations provided, so description must carry full burden. Discloses compact vs full detail, filter operators, and examples. However, does not state idempotence, read-only nature, or pagination behavior beyond limit parameter. Adequate but 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.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
Description is succinct and front-loaded with key behavior ('Get deployments with optional filters'). Filter operators are listed in a structured, easy-to-read format. Could be slightly shorter, but 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 3 parameters and an output schema, description covers filter usage well and explains return detail differences. Missing mention of what happens with large result sets (though limit is present) and default behavior when no filter is applied. Overall sufficient.
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?
Extensive explanation of filter operators with examples (any_, all_, like_, etc.) and how to use them. Adds significant meaning beyond the schema's terse description of the filter object. Limit and workspace_id are also clarified in schema, but filter gets rich 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?
Clear verb 'get' and resource 'deployments'. Distinguishes from siblings by specifying it retrieves deployment objects, while siblings target other entities (flows, runs, etc.). Examples and filter details reinforce purpose.
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?
Describes when to use filters and how to get full detail vs compact summaries. Provides explicit examples. Lacks when-not-to-use guidance, but the tool's scope is clear enough.
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 bears full burden. It indicates a read-only operation returning specific data, and mentions conditional availability of user info ('if available'). It could explicitly state that it requires authentication and is idempotent, but the description is sufficient for a simple read 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 three sentences with no wasted words. The first sentence states the purpose, the second lists return fields, and the third provides a use case. It is front-loaded and 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?
The description covers main functionality and return values. It mentions the use case and conditional data. However, it could mention when the workspace_id parameter is needed (e.g., Prefect Cloud OAuth mode). Given the output schema exists (not shown), the description is nearly 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?
The input schema has one optional parameter (workspace_id) with a description, so schema coverage appears high. The tool description does not add information about this parameter, relying on the schema. Thus the description adds no extra value beyond the schema, warranting a 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 verb 'Get' and the resource 'identity and connection information', specifying the returned data (API URL, type, user info). It distinguishes from siblings like get_flows and get_deployments by focusing on instance identity.
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 explains when to use it: 'Essential for understanding which Prefect instance you're connected to.' It provides clear context but lacks explicit guidance on when not to use or alternatives, though the uniqueness among siblings makes this less critical.
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 the full burden. It discloses the default time range and filtering behavior, but does not mention pagination, ordering, or performance implications. The limit parameter's maximum is only in the schema, not in the description. Adequate but 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 well-structured with sections: general purpose, a note about default time range, list of common event type prefixes, and concrete examples. Every sentence adds value, and the most critical information is front-loaded.
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 complexity (5 parameters) and that an output schema exists, the description covers the main usage scenarios: default behavior, time filtering, and event type filtering. It omits details like pagination and sorting, but the examples provide practical guidance. Overall, it is sufficiently complete for a read 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 high (80%), but the description adds value by explaining the default time range behavior and providing common event type prefixes and examples. This goes beyond the schema, which only lists property descriptions and examples.
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 reads and filters events from the Prefect instance. It specifies the resource (events) and action (read), and distinguishes it from sibling tools like get_flow_runs and get_task_runs which focus on different resources.
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 explicit usage guidance: it explains the default time range (last 1 hour), how to filter by time using occurred_after/occurred_before, and event type prefixes with examples. It does not explicitly state when not to use the tool or mention alternative tools, but the context is clear enough.
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, the description carries full burden. It warns that 'task_inputs' contains dependency tracking, not parameter values, and explains filter operators. It does not discuss rate limits or authentication, but the read-only nature is implied.
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 purpose, includes a concise warning, lists filter operators, and provides examples. Every sentence adds value without unnecessary verbosity.
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?
The description explains purpose, filters, and a key nuance. Output schema exists, so return values need not be elaborated. It lacks mention of pagination or limit behavior, but these are in the schema. Overall sufficient for the complexity.
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?
The description adds meaning beyond the schema by providing filter operator details, examples, and a warning about 'task_inputs'. Schema coverage is 67%, so the description compensates effectively with usage patterns.
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 the resource 'task runs', and distinguishes from sibling tools like get_flow_runs by specifying it returns task run details.
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 includes filter operators and examples, but does not explicitly guide when to use this tool over siblings (e.g., get_flow_runs). It lacks exclusions or comparison to 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, the description carries full burden. It discloses that default returns compact summaries and filtering by specific ID provides full detail. It does not mention permissions, rate limits, or read-only nature, but the behavior is clearly described.
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 at under 150 words, well-structured with a clear purpose, operator list, and examples. Every sentence adds value without repetition.
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 presence of an output schema, the description needs not detail return values. It covers the main functionality, filter usage, and output granularity. Minor omission: no mention of the default sorting or pagination, but still adequate.
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 coverage is 67% with two parameters described. The description adds significant value by explaining filter operators, providing examples, and clarifying how the filter parameter works, which goes beyond the schema's basic 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 tool retrieves flow runs with optional filters. It is specific about the resource and action, and differentiates from siblings like get_flows and get_task_runs.
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 explains when to use the filter parameter for specific IDs vs. the default compact summaries, and provides filter operators and examples. However, it does not explicitly state when not to use this tool or compare with alternatives like get_flow_run_logs.
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?
No annotations are provided, so the description carries full burden. It describes the default compact output, full detail with ID filter, and filter operators. It does not mention auth or rate limits, but the read-only nature is inferred.
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 main purpose, followed by details and examples. It is well-structured but slightly lengthy; however, every sentence adds 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 existence of an output schema, the description does not need to explain return values. It covers purpose, filtering, default vs full detail, usage guidelines, and examples, making it fully 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?
The input schema already describes all three parameters, achieving 67% coverage (context's claim). The description adds value by explaining filter operators and providing examples, enhancing understanding beyond the schema.
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 it gets work pools with optional filters, and distinguishes between compact summaries and full detail. It implicitly differentiates from sibling tools by focusing specifically on work pools, a unique resource.
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 examples and notes that it's essential for debugging deployment issues. It explains filter operators but does not explicitly state when not to use this tool versus alternatives; however, the context is clear enough for an agent.
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?
No annotations provided, but the description thoroughly explains what the tool does, including grouping throttled minutes, showing periods and operation groups, and clarifying these are not API keys. It also notes 'Cloud only' constraint.
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 a summary, context, usage guidance, output details, and examples. Every sentence is purposeful and 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 simplicity (2 optional params, output schema exists), the description covers when to use, output structure, and constraints. Minor omission: no mention of data retention limits, but overall 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 coverage is 100% with descriptions for both parameters. The description adds value by providing usage examples that illustrate typical invocations, which helps semantics beyond schema.
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 'Review rate limit usage for this Prefect Cloud account (Cloud only),' specifying a clear verb and resource. No sibling tool covers rate limits, so it distinguishes well.
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?
Explicitly states when to use: 'When you see HTTP 429 errors or "Too Many Requests" responses.' No alternatives are needed as no sibling tools are similar.
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?
Without annotations, the description carries the full burden. It discloses default compact summaries and full detail via ID filtering. It could mention read-only nature but is otherwise thorough for a read operation.
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 bullet points and examples, front-loaded with the core purpose. Every sentence adds value, and there is no 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 has three parameters, an output schema, and moderate complexity, the description covers all necessary context: filter operators, default behavior, and usage examples. It is complete for agent 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?
The description adds significant value beyond the input schema by explaining filter operators, examples, and the effect on returned detail level. Schema coverage is 67%, and the description compensates well for the filter 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 tool gets automations with optional filters, distinguishing it from sibling tools like get_flows or get_deployments by resource type. It uses specific verbs and provides filter operators and examples.
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 explicit usage examples and filter operators, guiding when to use filters for summary vs full detail. However, it does not explicitly state when not to use this tool or mention alternatives.
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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