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

Annotations already indicate readOnlyHint=false and destructiveHint=false, so the description is not required to restate that. It adds the specific behavioral detail that the ticket is marked declined, which is useful. However, it does not disclose other potential side effects or authorization requirements beyond what the parameter description already covers. With annotations present, this is an acceptable but not outstanding level of disclosure.

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 sentences, front-loaded with the core purpose ('take back your own request') and immediately followed by critical constraints and effect. Every word earns its place with no fluff or redundancy.

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 two-parameter mutation tool with no output schema, the description adequately covers the purpose, timing, and result (ticket marked declined). It doesn't explain the return value or error conditions, but given the simplicity and that the parameters are fully described in the schema, this is sufficient. It could mention that the operation is irreversible or requires a valid request_token, but those are implied by the schema description.

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 coverage is 100% with clear descriptions for both parameters (ticket format and request_token provenance). The description adds minimal semantic value beyond the schema, only implying that the request_token authorizes withdrawal of 'your own request'. Since the schema already documents both parameters well, the baseline of 3 is appropriate.

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 action (withdraw your own request), the resource (a build ticket), and the timing constraints (before it is built, while requested or accepted-and-queued). It distinguishes from sibling tools like bb_file_request (creation) and bb_get_request (retrieval) by its specific purpose of reversing a request.

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 explicitly states when the tool is applicable (before building, during requested or accepted-and-queued states) and when it is refused (once building). This gives clear context for use, though it doesn't explicitly name alternative tools for other states, the timing constraints effectively guide the agent to the right scenario.

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