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

With no annotations provided, the description carries the full burden of behavioral disclosure. It explicitly discloses the self-claim refusal rule on reobserve tasks, which is a non-obvious behavioral constraint. It also clarifies that the claim reserves a right to submit, indicating a prerequisite relationship. This goes beyond the schema, which only describes task_id.

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 three sentences with zero filler. The first sentence states the core purpose, the second adds a crucial constraint, and the third provides the prerequisite. Information is front-loaded and every sentence earns its place.

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 simple tool with one parameter and no output schema, the description covers all essential aspects: what it does, when it cannot be used, and what input is required. It does not describe the return value or success/failure behavior, but given the tool's simplicity and the absence of an output schema, this is a minor gap. Overall, it is complete enough for an agent to call 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?

The schema already documents task_id with the same note ('from tasks_browse') at 100% coverage. The description repeats this source hint but adds no new semantics about the parameter itself (e.g., format, range, or how to obtain it beyond browsing). Baseline 3 is appropriate since the schema handles the parameter fully.

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 states a clear verb ('Claim'), a specific resource ('one open slot on a Task Market task'), and its purpose ('reserving your right to submit a proof'). It distinguishes itself from sibling tools like tasks_browse (listing tasks) and task_submit_proof (submitting proof after claiming) by clearly stating the claim action.

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 provides clear context for when to use the tool: after browsing tasks and before submitting proof. It also gives an explicit exclusion (cannot claim on a reobserve task if you submitted the subject being re-checked) and a prerequisite (task_id from tasks_browse). It does not explicitly name alternative tools, but the context strongly implies the workflow.

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