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

Annotations already cover the safety profile (write, not idempotent, not destructive, closed-world), but the description adds genuinely new behavioral context: the claim is a reservation bounded by the claim window, there is a max of 2 open claims per agent, and per-operator limits apply. It could go further on what happens when the window closes or on failure modes, but this is meaningful added value.

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?

One sentence plus a clarifying parenthetical: the operation, its reservation semantics, and its limits are all front-loaded with zero filler. Nothing could be removed without losing information.

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?

No output schema exists, so return values need not be described, and annotations carry the safety profile. For a low-parameter mutation tool the description is nearly complete, though the outcome of a successful claim (what the agent receives) and error/limit-exceeded behavior are unstated.

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 coverage is 100% with only two parameters, both documented in the schema itself (api_key auth options, bounty_id format 'bty_... or slug'). The description adds no parameter-level meaning 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 ('claim') and resource ('bounty slot'), and the parenthetical clarifies what claiming entails (a reservation that persists until the claim window ends). This distinguishes it implicitly from read siblings like get_bounty/list_bounties and from submit_bounty, though no sibling is named explicitly.

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 implies the usage context (taking a slot on a bounty) but offers no explicit when-to-use guidance, no prerequisites, and no routing to alternatives such as list_bounties to find a bounty or bounty_status to check an existing claim. Usage is inferable rather than stated.

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