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

Annotations declare a non-read-only, non-destructive, non-idempotent submission, and the description adds context annotations cannot carry: the report is 'Free, never charged', and request_id reaches the stored run plus upstream error body so the payload need not be pasted. It does not mention that repeat submissions create separate tickets or who can see the report, so it is good but not exhaustive.

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?

Three sentences, front-loaded with the qualifying-defect list before the field guidance, and no filler. The long enumeration is justified by its routing value, though it makes the first sentence heavy.

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?

With an output schema present and 100% parameter description coverage, the description need not explain returns; it supplies the qualifying conditions and the highest-value field guidance (request_id). Only the free-of-charge and data-minimization notes plus the bug-vs-feedback boundary are left thin.

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%, so the baseline is 3. The description restates that summary is required and one line, and that request_id links to the stored request without needing the payload — accurate and slightly clarifying, but largely duplicating the schema's own request_id text.

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?

States a concrete verb+resource (submit a defect report to AnyAPI) and then enumerates the exact scope of defects that qualify: wrong/empty/malformed data for valid input, misleading errors, incorrect prices or schemas, unexpected retry failures. That enumeration implicitly separates it from the sibling send_feedback, so an agent can route without opening either schema.

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 defect taxonomy is effectively a 'when to use' list, which is strong guidance. It never names an alternative (e.g. send_feedback for non-defect commentary) or states when not to file, so it stops short of full routing guidance.

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