Server Quality Checklist

Tool Scores

• placid_generate_imageC
  2.9/5.0
  Behavior2/5

  Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

  With no annotations provided, the description carries the full burden of behavioral disclosure. It states the tool generates an image, implying a write operation, but doesn't cover critical aspects like authentication requirements, rate limits, output format (e.g., image URL or binary data), error handling, or whether it's idempotent. This is a significant gap for a tool that likely involves external processing.

  Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

  Conciseness5/5

  Is the description appropriately sized, front-loaded, and free of redundancy?

  The description is a single, efficient sentence that directly states the tool's function without unnecessary words. It's front-loaded with the core action ('Generate an image') and avoids redundancy, making it easy for an agent to parse quickly.

  Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

  Completeness2/5

  Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

  Given the complexity (2 parameters with nested objects, no output schema, and no annotations), the description is incomplete. It doesn't address the output (what is returned, e.g., an image URL or file), error conditions, or behavioral traits like side effects. For a tool that generates content, this lack of context could lead to incorrect usage by an agent.

  Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

  Parameters3/5

  Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

  The description mentions 'template and provided assets', which loosely maps to the two parameters (template_id and layers), but adds minimal semantic value beyond the schema. With 100% schema description coverage, the schema already documents parameters thoroughly (e.g., template_id as a UUID, layers as key-value pairs for dynamic content). The description doesn't explain the purpose of layers or provide examples, so it meets the baseline for high schema coverage.

  Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

  Purpose4/5

  Does the description clearly state what the tool does and how it differs from similar tools?

  The description clearly states the action ('Generate an image') and the mechanism ('using a template and provided assets'), which distinguishes it from the sibling 'placid_generate_video' that presumably generates videos. However, it doesn't explicitly differentiate from 'placid_list_templates' beyond the verb 'generate' vs 'list', which is somewhat implied but not stated.

  Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

  Usage Guidelines2/5

  Does the description explain when to use this tool, when not to, or what alternatives exist?

  The description provides no guidance on when to use this tool versus alternatives. It doesn't mention prerequisites (e.g., needing a template ID from 'placid_list_templates'), when not to use it, or how it differs from 'placid_generate_video' beyond the output type. This leaves the agent to infer usage from context alone.

  Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

• placid_list_templatesB
  3.2/5.0
  Behavior2/5

  Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

  With no annotations provided, the description carries the full burden of behavioral disclosure. It mentions optional filtering and the data included in each template, but fails to describe critical behaviors such as pagination, rate limits, authentication needs, error handling, or whether the list is exhaustive. This leaves significant gaps for a tool that likely interacts with an external 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 a single, well-structured sentence that efficiently conveys the tool's purpose, optional features, and output details without any wasted words. It is appropriately sized and front-loaded with the core action.

  Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

  Completeness2/5

  Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

  Given the lack of annotations and output schema, the description is incomplete. It does not cover behavioral aspects like response format, pagination, or error cases, nor does it provide enough context for an agent to fully understand how to use this tool effectively in a real-world scenario, especially as a read operation with potential API constraints.

  Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

  Parameters3/5

  Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

  Schema description coverage is 100%, so the schema already documents all three optional parameters (collection_id, custom_data, tags) with their purposes. The description adds no additional parameter semantics beyond what the schema provides, such as format examples or interaction effects, meeting the baseline for high schema coverage.

  Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

  Purpose4/5

  Does the description clearly state what the tool does and how it differs from similar tools?

  The description clearly states the verb ('Get a list') and resource ('available Placid templates'), specifying what data is included (title, ID, preview image URL, layers, tags). It distinguishes from sibling tools by focusing on listing templates rather than generating images/videos, though it doesn't explicitly contrast with them.

  Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

  Usage Guidelines3/5

  Does the description explain when to use this tool, when not to, or what alternatives exist?

  The description implies usage for retrieving templates with optional filtering, but provides no explicit guidance on when to use this tool versus alternatives (like placid_generate_image/video) or any prerequisites. The context is clear but lacks comparative or exclusionary guidance.

  Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

• placid_generate_videoB
  3.3/5.0
  Behavior3/5

  Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

  With no annotations provided, the description carries full burden for behavioral disclosure. It adds valuable context about credit consumption ('Every 10 seconds of video uses 10 credits'), which is a key behavioral trait not evident from the schema. However, it doesn't mention other important behaviors like processing time, error conditions, or what happens when invalid assets are provided.

  Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

  Conciseness5/5

  Is the description appropriately sized, front-loaded, and free of redundancy?

  The description is extremely concise with just two sentences. The first sentence clearly states the purpose, and the second adds crucial behavioral context about credit usage. Every sentence earns its place with no wasted words, and the information is front-loaded effectively.

  Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

  Completeness3/5

  Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

  For a video generation tool with 6 parameters, no annotations, and no output schema, the description provides basic purpose and cost information but lacks important context. It doesn't explain what the tool returns (no output schema), doesn't mention authentication requirements, and provides minimal guidance on usage. The credit information is helpful but insufficient for full contextual understanding.

  Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

  Parameters3/5

  Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

  Schema description coverage is 100%, so the schema already documents all 6 parameters thoroughly. The description adds no additional parameter semantics beyond what's in the schema. According to scoring rules, when schema coverage is high (>80%), the baseline is 3 even with no param info in the description.

  Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

  Purpose4/5

  Does the description clearly state what the tool does and how it differs from similar tools?

  The description clearly states the action ('Generate a video') and resources involved ('using one or more templates and provided assets'), which provides a specific verb+resource combination. However, it doesn't explicitly differentiate from sibling tools like 'placid_generate_image' or 'placid_list_templates' beyond the obvious video vs. image distinction.

  Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

  Usage Guidelines2/5

  Does the description explain when to use this tool, when not to, or what alternatives exist?

  The description provides no guidance on when to use this tool versus alternatives like 'placid_generate_image' or 'placid_list_templates'. It mentions credit usage ('Every 10 seconds of video uses 10 credits') which could imply cost considerations, but offers no explicit when/when-not instructions or comparison to sibling tools.

  Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.