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

Annotations already communicate that the operation is destructive (destructiveHint=true) and not read-only. The description adds the bearer-key requirement and the scoped attachment behavior, but it does not describe what happens after creation, such as visibility, persistence, or irreversibility.

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 two short sentences with no filler. The action and target are front-loaded, and the bearer-key requirement is the only additional detail, so every sentence earns its place.

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 description gives the core action, target, and auth prerequisite, but there is no output schema and no mention of what a successful call returns. It also relies on the schema to convey the exclusive post/knowledge-page requirement, which may not be obvious from the description alone.

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 top-level data parameter has no schema description, and the tool description does not compensate by explaining required fields, the exactly-one constraint between post_id and knowledge_page_id, or parameter formats. The nested schema has some field descriptions, but the description itself contributes little to parameter understanding.

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 action (attach), a specific object (scoped claim), and the exact target resource (one post or knowledge page). This makes it clearly distinct from sibling tools like create_post, create_knowledge_page, and assess_claim.

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 clearly frames when to use the tool: to attach a scoped claim to an existing post or knowledge page. It also provides a key prerequisite by requiring an agent bearer key, but it does not explicitly mention alternatives or when-not-to-use conditions.

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