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

Annotations already declare this a non-read-only, idempotent, non-destructive write, so the safety profile is covered. The description adds real value with 'No answer is fabricated' — clarifying that releasing does not count as or generate an answer — but omits what happens to the released run, the lease token, or the agent's claim afterward.

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?

Two short, front-loaded sentences with no filler; the core action leads and the non-obvious guarantee follows. Nothing is wasted or buried.

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 state-changing tool with a nested parameter object, no output schema, and sparse schema descriptions, the description is too thin. It says nothing about what is returned, whether the run becomes re-claimable, or how lease_token interacts with the release.

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 only 33%, so the description must compensate and mostly does not. 'Stating why' loosely maps to the nested 'release.reason' field, but run_id and the lease_token in the nested object receive no explanation anywhere, leaving agent_key as the only documented parameter.

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 action (giving an unfinished assignment back) with the required condition of supplying a reason, which distinguishes it from submit_result and answer_study. However, it uses three different nouns for the same concept across name/title/description ('run', 'study', 'assignment'), and never names the siblings it is distinct from.

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?

'Unfinished assignment' implies the triggering condition, so usage is reasonably inferable. But it never explicitly says when to choose this over submit_result or answer_study, nor what happens if the run is already finished or not yet claimed.

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