trace-mcp

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It describes what the tool does (impact analysis, file/reference showing, PR template generation) but lacks details about permissions needed, rate limits, response format, or whether this is a read-only analysis tool versus one that makes changes. The description is informative but incomplete for behavioral transparency.

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

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

The description is perfectly concise with two sentences that each earn their place. The first sentence explains what the tool does, and the second provides crucial usage guidance. 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.

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

Given no annotations and no output schema, the description provides good purpose and usage context but lacks details about behavioral characteristics, response format, and error conditions. For a tool with 4 parameters and no structured output documentation, the description should ideally provide more context about what the analysis output looks like.

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

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

With 100% schema description coverage, the schema already documents all 4 parameters thoroughly. The description doesn't add any additional parameter semantics beyond what's in the schema descriptions. It mentions analyzing package/dependency updates generally but doesn't provide extra context about parameter usage or relationships.

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

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 ('analyze the impact', 'shows all affected files', 'generates a PR template') and resources ('updating a package/dependency'). It distinguishes itself from siblings by focusing on pre-upgrade impact analysis rather than execution or other types of analysis.

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

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

The description explicitly states when to use this tool ('Use before upgrading a dependency to understand blast radius'), providing clear context and timing guidance. It distinguishes from potential alternatives by focusing on pre-upgrade planning rather than actual implementation.

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