update_tag

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

With no annotations, the description carries full burden for behavioral disclosure. It implies mutation but does not explain permissions, atomicity, or side effects. The type mismatch between 'numeric tag id' in description and 'string' in schema also introduces ambiguity.

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 succinct (5 lines), front-loads the main purpose, and uses a clear structured format with lines per parameter. No extraneous content.

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 a 4-param tool with an output schema, the description covers the main operations and parameter details. However, it lacks return value context and does not mention any constraints or prerequisites, which would be helpful for an update action.

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?

Despite 0% schema description coverage, the description adds meaningful details: account_id auto-resolves, name means 'new display name', and color lists specific allowed values (though schema lacks enum). This significantly improves param understanding, though the tag_id type mismatch is a minor flaw.

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 explicitly states 'Rename or recolor a tag,' which is a specific action on a clear resource. This distinguishes it from sibling tools like create_tag, delete_tag, get_tag, and list_tags.

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?

No guidance is provided on when to use this tool versus alternatives (e.g., create_tag or bulk_update_calls). There is no mention of prerequisites or situational appropriateness.

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