Pin style habit

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

With no annotations provided, the description carries full burden for behavioral disclosure. It only states that pinning protects from cleanup (deletion), but omits important details like whether unpinning also reverses protection, permission requirements, side effects on other operations, or idempotency of repeated calls.

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 a single sentence with no wasted words. It is front-loaded with the actionable verb and resource, immediately clarifying the tool's function. Every element serves a purpose.

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 tool's simplicity (2 params, no output schema, no annotations), the description is minimal but incomplete. It lacks details on return values, error handling, matching semantics for idOrText (exact match, case-sensitivity), and whether the operation is idempotent. An agent using this tool would be uncertain about behavior in edge cases.

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 100% (both parameters have descriptions in the schema). The tool description adds minimal value beyond the schema, merely connecting the parameters to the purpose. Per guidelines, baseline 3 is appropriate when schema already provides sufficient semantic meaning.

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 verb 'Pin or unpin' and the resource 'style habit', with the explicit purpose 'so cleanup will not delete it.' It effectively distinguishes from sibling tools like pin_interaction_preference by specifying the target resource.

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 such as pin_interaction_preference. There is no mention of when not to use it or any prerequisites. The context implies usage for habit pinning, but lacks explicit actionable guidance.

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