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

Goes beyond the annotations by disclosing that each call appends a new comment, that the operation is not idempotent, and that the underlying call is POST /comment. The destructiveHint=true annotation is not contradicted, but the description could have clarified why (append-only mutation) and whether comments can be edited or deleted afterwards.

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 compact sentences with the write classification and target resource front-loaded, followed by the one operational caveat that matters (non-idempotent). No filler.

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?

Adequate for a 4-parameter mutation: it conveys target scope, append semantics and the API endpoint. The remaining gap is the return value — with no output schema, the agent does not learn whether the created comment or its id is returned, which matters for follow-up calls.

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 100%, so the schema already documents content, entityId, entityType and visibility, including the asset-only public/tech restriction. The description repeats the entity types from the enum but adds no new parameter meaning, so baseline 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 (add/create) and resource (comment) and enumerates the exact record types it can attach to. The 'WRITE:' prefix and 'add a new comment' phrasing cleanly separate it from servicetrade_list_comments, which is the only near sibling.

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?

Usage is implied by the write-oriented framing and the entity enumeration, and the non-idempotency warning gives a caution about retries. However it never explicitly says when to use this versus list_comments, nor does it state prerequisites such as needing a valid entityId or existing record.

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