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

The description adds many behavioral constraints: receipt binding, provider ambiguity blocking paid retry, no verification minting, no credential exposure. However, it directly contradicts the annotations: it describes requesting a leased, cost-bearing production stage with paid retries, while readOnlyHint=true signals no state modification. This is an annotation contradiction, so the score must be 1.

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 long, dense block of nested caveats and repeated restrictions. It front-loads the core verb well, but the rest is not scannable: key rules about receipts, stages, and limitations are buried in complex prose that would be much clearer as structured bullets.

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 high complexity—10 parameters, 0% schema coverage, and a non-trivial domain—the description is not complete enough. It provides valuable receipt-gating rules and limitations, but omits parameter semantics, stage value options, and consistent side-effect behavior. The readOnlyHint contradiction further undermines an agent's ability to invoke it correctly.

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 0%, so the description must compensate for 10 undocumented parameters. It references dispatch/task/job/source receipts and content_type=audiobook_production, but it never explains package_id, idempotency_key, allowed stage values, chunk_id, segment_id, manifest_sha256, verifier_job_id, verification_task_id, or sample_scope. This leaves an agent guessing about most inputs.

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 opens with a specific verb+resource: 'Request one leased production stage.' It then distinguishes stage families (Gemini reconciliation vs canary/full-chunk) and explicitly separates this from status, approval, and publication actions, so an agent can tell it apart from siblings like cogentcast_production_status and cogentcast_approval_resolve.

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 gives explicit when-to-use conditions: the zero-cost Gemini reconciliation stage requires exact dispatch/task/job/source/Chief Editor receipt binding, while paid canary/full-chunk stages require prior Chief Editor, Gemini, and human receipts. It also states exclusions—cannot record human approval or publish—and points to production.status for gate status, which is strong routing guidance.

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