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

Annotations already declare readOnly=false, idempotent=true and destructive=false; the description adds real value beyond them by naming the target state (unresolved), the alerting consequence, and that a confirmation is returned. It omits whether the error must currently be ignored and what happens if it is not, which is a meaningful precondition for a state-transition tool.

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 short sentences, front-loaded with the state change and followed by the effect and return note. Nothing is wasted and nothing is buried.

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 one-parameter mutation with no output schema, the description covers the state change, the alerting effect, and the return shape. The only gap is the precondition failure behavior, which an agent would need to handle errors correctly.

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 100% with a single required errorId already documented as "The error ID to unignore". The description's phrase "an ignored error group" hints that the ID must reference a currently-ignored error, but adds no format or validation detail beyond the schema. Baseline 3 is appropriate.

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 with an explicit state transition ("Moves an ignored error group back to unresolved"), which implicitly separates it from ignore_error and resolve_error. It does not explicitly name those siblings, so differentiation is inferred rather than stated.

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 clause "so new occurrences alert again" gives clear context for when to use it — undoing a prior ignore. There is no explicit when-not condition or named alternative (e.g., resolve_error for marking permanently resolved), so it stops short of full routing guidance.

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