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

Annotations only declare readOnlyHint=false and destructiveHint=false; the description adds real behavioral context beyond that: the required 'repo' scope, the write-access prerequisite, and that the reason is audited. It stops short of describing reversibility or the response, so it is not a full 5.

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 tight sentences: the action and its scope come first, the prerequisites and audit note second. No filler, and the parenthetical efficiently captures the two scoping modes.

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 mutation tool with no output schema, the description covers effect, scoping, prerequisites, and the audit trail on the required reason. Only the return/confirmation behavior and whether dismissal is reversible are left 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 only 40%, but the description compensates partially: it clarifies that 'reviewer' is optional ('one reviewer's' vs 'all of them') and that 'reason' is mandatory and audited. owner/repo/number carry no added meaning, so the coverage gap is not fully closed.

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 ('Dismiss') on a specific resource ('standing changes requested reviews on a PR') with explicit scope ('all of them, or one reviewer's'). The effect clause ('so they no longer hold the merge') makes the outcome unambiguous, and it is clearly distinguishable from the sibling gluecron_request_changes.

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 the operative context (reviews that block the merge) and the prerequisite ('Requires repo scope and write access'), plus the constraint that a reason is required. It does not name an alternative tool or state when not to use it, but the situation for invoking it is clear.

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