create_skill

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

With no annotations, the description must carry behavioral disclosure, and it does state the write-permission requirement. However, it does not mention return value, duplicate-name behavior, validation, or any side effects beyond creating a skill. This is the minimum viable disclosure for a mutation tool.

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?

Two short sentences state the core operation and the key precondition with no filler. It is appropriately sized and front-loads the action.

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?

The tool is a simple create operation with one required parameter documented in the schema, so the description is enough for basic invocation. However, with no output schema and sparse parameter documentation, an agent is left to infer the return value and format requirements for the undocumented fields.

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?

Schema description coverage is only 25%, with logo_url, body_html, and category_ids lacking descriptions. The description adds no parameter meaning beyond the schema, so it fails to compensate for the low schema coverage. An agent receives virtually no help understanding what values to provide.

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 'Create a new skill' uses a specific verb and resource. It cleanly distinguishes this from the sibling tools update_skill, delete_skill, get_skill, and list_skills. No ambiguity about what operation this tool performs.

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 creation intent is implied by the verb 'Create' and the resource 'skill', but there is no explicit guidance about when to prefer it over update_skill or delete_skill. The 'Requires write permission' note adds a precondition but no exclusion or alternative-routing information.

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