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

Annotations already declare destructiveHint=true and readOnlyHint=false, so the safety profile is covered. The description adds real context beyond them: the side effect that the review reverts to unanswered, and the exact error payload for a malformed review_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?

Front-loaded with the action and its consequence, then parameters in compact colon-delimited lines. No filler, though the line-broken layout is slightly less scannable than a single tight paragraph.

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?

An output schema exists, so return values need no explanation, and the description covers the mutation's effect, ID validation and workspace scoping. Only the no-existing-reply case is left unstated, a minor gap for a 2-parameter destructive delete.

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 carries the burden and largely does: it constrains review_id to letters, digits, underscore and hyphen, names its source tool (gbp_reviews), and explains workspace optionality when only one workspace exists. It omits what happens if the review has no reply, but both parameters gain meaning absent from the bare schema.

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 and resource ('Löscht die Antwort auf eine Rezension') plus the observable outcome (the review becomes unanswered again). It does not name gbp_reply_review as the counterpart, so sibling differentiation is only implicit, but an agent can tell this is the removal operation.

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?

Gives a concrete when-to-use motive ('z.B. um eine fehlerhafte Antwort zu korrigieren'), which is exactly the scenario that selects this tool. It stops short of explicitly routing to gbp_reply_review for the follow-up write, and there are no stated preconditions.

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