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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false, and closed-world scope, so the safety profile is covered. The description adds real value beyond that: what the response contains (dates, plain-language summaries, penalties, source links) and the intended two-step workflow into privacy_get_enforcement_case. It stops short of noting result ordering or search matching behavior.

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 core statement, then workflow, then structured Use/Do-not-use lines. Slight redundancy: the 'Use when' line largely restates the opening sentence about fines and enforcement cases, costing a little space.

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?

With an output schema, full parameter documentation, and rich annotations, the description covers purpose, scope, response contents, and next steps. Minor gap: nothing about result ordering or how paging interacts with the query/regulator filters beyond what the offset field says.

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% and each parameter already documents its meaning and constraints. The description implies the year/regulator/query filters through examples but adds no syntax or semantics beyond the schema, so the 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 (search) and resource (verified Canadian privacy enforcement actions), and names the two covered regulator corpora (CAI/Law 25, OPC/PIPEDA). It distinguishes itself from privacy_get_enforcement_case by framing this as the discovery step that yields a case ID.

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?

Explicit 'Use when' triggers (fines, penalties, cases, investigations), concrete example queries, and an explicit 'Do not use when' pointing to a glossary tool for definitional questions. The alternative tool for full case details is named.

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