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

Annotations already establish readOnlyHint, idempotentHint, destructiveHint=false and closed-world behavior, so safety is covered. The description adds the four evidence classifications as behavioral context about what the trace yields, but says nothing about return format, limits, or error behavior.

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?

A single, front-loaded sentence that opens with the verb and wastes no words. It is appropriately sized for a one-parameter read-only tool, though brevity here shades into under-specification.

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 read-only, idempotent tracing tool with one parameter and no output schema, the description conveys the core purpose and the result categories. It leaves open how the trace is produced and what each category means, which is adequate but not thorough.

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% and the single required parameter (claim_id) is never mentioned in the description. The description does not compensate with format, source, or example values for the claim identifier.

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 (trace) and resource (claim → evidence), and enumerates four evidence categories (supporting, conflicting, contextual, insufficient) that sharpen the meaning. It does not, however, distinguish itself from siblings like search_evidence or link_claim_evidence.

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 offers no when-to-use guidance, no prerequisites, and names no alternative. An agent cannot tell from this text when trace_claim is preferred over search_evidence or get_evidence_collection.

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