update_milestone

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

No annotations are provided, so the description must carry the full burden of disclosing behavioral traits. It states that the tool updates a milestone and returns the updated object, but it does not disclose whether updates are partial or full, what happens to omitted fields, permission requirements, or any side effects. This is a significant transparency gap 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?

The description is concise and well-structured, using separate lines for each parameter within an 'Args' block and a 'Returns' line. There is no redundant text or repetition; every sentence contributes useful information.

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 the simple 6-parameter update operation and the presence of an output schema, the description covers parameter meanings and the return type reasonably well. However, it lacks usage guidelines and behavioral transparency regarding partial updates, making it only minimally complete for an agent to confidently invoke.

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?

The description compensates for the 0% schema coverage by providing a meaningful label for each parameter, such as 'UUID of the project' and 'Target date for the milestone (ISO 8601 format)'. It adds value beyond the raw schema types, though it does not clarify optionality or update semantics.

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 'Update a milestone by ID', which is a specific verb+resource combination. It distinguishes this tool from sibling tools like create_milestone, retrieve_milestone, delete_milestone, and manage_milestone_work_items by focusing on updating an existing milestone's core fields.

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 provides no explicit guidance on when to use this tool versus alternatives. It does not mention exclusions, prerequisites, or relationships to sibling tools like manage_milestone_work_items. The intended usage is only implied by the tool name and action.

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