Update Group Milestone

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

Annotations already declare this is a non-read-only, non-destructive, non-idempotent, open-world mutation, so the safety profile is covered. The description adds useful context that state changes happen through state_event (close/activate), but it omits partial-update semantics (whether omitted fields are left unchanged) and any permission requirements.

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?

A single, front-loaded sentence with no filler, listing the affected fields in a natural order. It is slightly too compressed for a seven-parameter mutation, but nothing is wasted.

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?

For a mutation with seven parameters, no output schema, and zero schema descriptions, the definition covers the field set and state semantics but leaves update behavior (partial vs full replacement), date format expectations, and required permissions unaddressed. Adequate, but not complete for the tool's complexity.

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 0%, so the description must carry parameter meaning; it does map out the mutable fields and clarifies the state_event values. However, it gives no guidance on date formats for start_date/due_date and does not explain the group_id/milestone_id identifiers, leaving real gaps.

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 names a specific verb (update) and resource (group milestone) and enumerates the mutable fields: title, description, dates, and state. This clearly separates it from create/delete/get siblings, though it never explicitly contrasts itself with the project-level gitlab_update_milestone.

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?

There is no guidance on when to use this tool versus gitlab_update_milestone or gitlab_promote_milestone, and no prerequisites such as requiring maintainer access or an existing milestone. Usage is only implied by the word 'update'.

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