Server Quality Checklist

Tool Scores

• fetch_weatherB
  3.1/5.0
  Behavior2/5

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

  No annotations are provided, so the description carries full burden for behavioral disclosure. It mentions fetching current weather but doesn't specify data sources, accuracy, rate limits, error conditions, or response format. This leaves significant gaps for an agent to understand how the tool behaves beyond the basic action.

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

  Conciseness5/5

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

  The description is a single, direct sentence with no wasted words, making it easy to parse and front-loaded with the core functionality. It efficiently communicates the essential purpose without unnecessary elaboration.

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

  Completeness3/5

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

  Given the tool's low complexity (one parameter) and the presence of an output schema (which handles return values), the description is minimally adequate. However, it lacks details on behavioral aspects like reliability or constraints, which are important even for simple tools, especially with no annotations to fill 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 0%, but the description adds minimal parameter context by implying the 'city' parameter is used to specify location. However, it doesn't clarify format (e.g., city name, coordinates), handling of ambiguous names, or required specificity. With one parameter and low schema coverage, this provides some but incomplete compensation.

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

  Purpose4/5

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

  The description clearly states the action ('fetch') and resource ('current weather for a city'), making the purpose immediately understandable. It doesn't distinguish from siblings (which are unrelated tools for notes and news), but that's not needed here since they serve completely different domains.

  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, prerequisites, or limitations. It simply states what it does without context about timing, constraints, or comparison to other weather-related tools (though none exist among siblings).

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

• search_newsB
  3.1/5.0
  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 action ('Fetch search results') but does not describe any behavioral traits such as rate limits, authentication needs, error handling, or what the output looks like. This leaves significant gaps in understanding how the tool behaves beyond its basic function.

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

  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 is appropriately sized and front-loaded, making it easy to understand at a glance, which is ideal for conciseness.

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

  Completeness3/5

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

  Given the tool's complexity (simple search with one parameter) and the presence of an output schema, the description is somewhat complete for basic understanding. However, with no annotations and low schema coverage, it lacks details on behavioral aspects and parameter semantics, making it adequate but with clear gaps in providing a full context for effective use.

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

  Parameters3/5

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

  The description does not add any meaning beyond what the input schema provides. The schema has 0% description coverage, but the description does not explain the 'query' parameter's purpose, format, or constraints. Since there is only one parameter and the schema coverage is low, the description fails to compensate, resulting in a baseline score due to the minimal parameter count.

  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 ('Fetch search results') and the resource ('from Google News via Serper'), making the purpose specific and understandable. However, it doesn't explicitly differentiate from sibling tools like 'fetch_weather' or 'read_notes', though the domain difference is implied by the name and description.

  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 or in what context it should be applied. It lacks any mention of prerequisites, limitations, or comparisons to sibling tools, leaving usage entirely implicit based on the tool name and general purpose.

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

• add_noteB
  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 'Append' (implying mutation) and a confirmation return, but lacks details on permissions, file location, error handling, or whether notes are editable/deletable. This is insufficient for a mutation tool without 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 highly concise and well-structured: a clear purpose statement followed by separate Args and Returns sections. Every sentence adds value without 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.

  Completeness3/5

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

  Given the tool's low complexity (one parameter) and the presence of an output schema (which handles return values), the description is adequate but not complete. It lacks behavioral context (e.g., file system interactions) and usage guidelines, which are important for a mutation tool with no annotations.

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

  Parameters4/5

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

  The description adds meaningful context for the single parameter 'message' by explaining it as 'The note content to be added,' which clarifies its purpose beyond the schema's basic type definition. Since schema description coverage is 0%, this compensates well, though it doesn't detail format constraints like length or encoding.

  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 ('Append a new note') and the target resource ('to the note file'), which is specific and unambiguous. However, it doesn't explicitly differentiate from sibling tools like 'read_notes' beyond the verb difference, so it doesn't fully achieve sibling distinction.

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

  Usage 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 'read_notes' or other note-related operations. It states what the tool does but offers no context about prerequisites, appropriate scenarios, or exclusions, leaving the agent to infer usage.

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

• read_notesB
  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 the full burden of behavioral disclosure. It adds some context: it describes the return behavior (all notes as a single string with line breaks, or a default message if none exist). However, it doesn't cover important aspects like error handling (e.g., if the file is missing), performance implications, or any side effects, leaving gaps in transparency.

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

  Conciseness4/5

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

  The description is concise and well-structured, with two clear sentences: one stating the purpose and another detailing the return behavior. It avoids unnecessary words and is front-loaded with the main action. However, it could be slightly improved by integrating the return details more seamlessly, but overall it's efficient.

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

  Completeness3/5

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

  Given the tool's low complexity (0 parameters, no annotations, but has an output schema), the description is somewhat complete but has gaps. It explains the return values adequately, but lacks context on when to use it, error scenarios, or how it interacts with siblings like 'add_note'. The output schema helps, but the description should provide more operational guidance to be fully helpful.

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

  Parameters4/5

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

  The tool has 0 parameters, and the schema description coverage is 100% (as there are no parameters to describe). The description doesn't need to add parameter semantics, so it naturally meets the baseline of 4 for this dimension, as it doesn't introduce confusion or redundancy regarding inputs.

  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: 'Read and return all notes from the note file.' It specifies the verb ('read and return') and resource ('all notes from the note file'), making the action unambiguous. However, it doesn't explicitly differentiate from its sibling 'add_note' beyond the obvious read vs. write distinction, which is why it doesn't reach a score of 5.

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

  Usage 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 any prerequisites, such as whether notes must exist or if the file needs to be accessible, nor does it compare to other tools like 'add_note' for related operations. This lack of contextual usage information limits its effectiveness for an AI agent.

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