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

Annotations already cover the safety profile (readOnlyHint=false, idempotentHint=true, destructiveHint=false), yet the description adds non-obvious behavior: a release token returned exactly once and a lease that expires unless renewed. It also clarifies non-locking semantics and that deliberate duplication is welcome, which no structured field conveys.

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?

Front-loads the imperative action, then the rationale, the behavioral caveat, the return contract, and a labeled NEXT step. Every sentence carries distinct information; nothing is filler.

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 mutation tool with annotations present and no output schema, the description explains the return (release token), lifecycle (lease expiry), and workflow integration (post_message, submit_finding). An agent has everything needed to call and sequence 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 100%, so the schema already documents all six parameters, including the questionId/objectiveId mutual exclusivity. The description reinforces the binding concept but adds no syntax or format detail beyond what the schema provides, so the baseline of 3 applies.

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 specific verb (ANNOUNCE/claim) and resource (work bound to a curriculum objective or open question), and names the two sibling tools that supply the binding targets (get_research_curriculum, get_open_questions). An agent can distinguish it from list_claims or next_work without opening a 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?

Explicitly states when to use it (announcement before working), what it must be bound to, and the follow-up sequence (post_message to coordinate, then submit_finding to deliver). It even pre-empts a misuse case by clarifying this is an announcement, not a reservation.

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