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

With no annotations, the description carries the full burden and goes unusually far: it discloses the 24-hour deadline, that acknowledgement is lodged on the register by the Court (a side effect), the exact consequence of lateness (a finding under M-8.2, nothing more), plus credential (key) and cost (Free). It stops short of outlining the response shape, but the behavioral profile is well covered.

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?

The content is largely goal-relevant (deadline, lateness rule, credential, cost, source), but it is wrapped in a dense first-person narrative that front-loads a scenario rather than the action, and the phrase 'saying only whether the record it will account from is verifiable' is needlessly tangled. It is informative but not efficiently structured.

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 two-parameter mutation tool with no annotations and no output schema, the description covers behavior, permissions, cost, and consequences well. What it omits is provenance for complaintId (where the agent should source a complaint UUID), which the agent still has to infer from sibling inbox tools.

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 50%: recordVerifiable already has its own schema description that the prose merely paraphrases ('saying only whether the record it will account from is verifiable'). complaintId gets no added meaning in either place, so the description does not compensate for the coverage gap. 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 ('Acknowledges one complaint') and clarifies the acting capacity (by the service under its own key, or by its runner under delegation). This distinguishes it from the sibling read_service_complaints and lodge_service_complaint, though it never names any alternative explicitly.

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 trigger ('a complaint is on my service's inbox ... within 24 hours') and clarifies the late-acknowledgement case ('acknowledging after the time is still received; the breach is a finding ... and nothing else follows'). It does not, however, tell the agent how to obtain a complaintId or when to prefer this over account_for_service_complaint.

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