athena_claim_challenge

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

With no annotations provided, the description carries the burden of disclosure. It does disclose meaningful behavior: noncanonical claims are moved to '?/CHALLENGED', canonical claims remain '#/CANONICAL_CHALLENGED', and automatic routing is blocked. This goes beyond the schema and helps agents anticipate side effects, though it does not cover all possible failure modes or prerequisite conditions.

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 two sentences long and wastes no words. It opens with the primary action ('Record...') and then provides the key behavioral consequence. Every token earns its place, making it easy for an agent to quickly parse the tool's purpose.

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?

The description explains the overall outcome and even the state transition details, but it leaves critical gaps: the meanings of the parameters, especially witness.ref and reason, are absent, and there is no output schema or annotation to fill those holes. The agent can understand what the tool does but may not know how to populate the fields correctly, so it is only a minimally viable description.

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. However, it does not explain any of the four parameters (claim_id, witness, reason, actor) or the nested structure of the witness object. The word 'verified' loosely maps to witness.verified, but no concrete guidance is given on the semantics of ref, reason, or actor, which is inadequate for a tool with a required nested object.

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 specific action and resource: 'Record a material verified challenge.' It also distinguishes the two outcome branches (noncanonical vs canonical claims) and the resulting statuses, making it clear how this tool differs from other claim-related tools like athena_claim_list or athena_claim_resolve_canonical_challenge.

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 usage for material verified challenges and notes a behavioral consequence (blocking routing for canonical claims), but it does not explicitly state when to use this tool versus alternatives, nor does it provide any exclusions. The context is present but not as explicit as the top of the scale.

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