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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint=false, and destructiveHint=false, so the safety profile is covered. The description adds that results are official source records and that every match is returned (implying completeness), but says nothing about pagination, result limits, ordering, or how formType/taxYear scope the corpus.

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 compact sentences, front-loaded with the action and search keys followed by the return behavior. No filler or repetition of the title.

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 4-parameter tool with a nested audit object and no output schema, the description is thin: it omits tax year semantics, audit parameter purpose, and any result-shape or pagination context. It covers the core search concept adequately but leaves the structured-only parameters undocumented.

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 only 25% (only query is documented in-schema), so the description must compensate. It usefully expands the query semantics with rule ID and clarifies BE/B scope, but taxYear and the nested audit object (runId, sequence, previousEventId) are entirely unexplained.

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 (cited Form BE / Form B rules), plus the searchable key types (topic, field ID, rule ID, TaxBrain category). It is clearly distinguishable from siblings like list/get_tax_authority_releases and prepare_be_2025_draft, which are retrieval-of-releases and drafting tools rather than rule search.

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?

Usage is implied by the search framing, but there is no explicit when-to-use statement, no exclusions, and no mention of the sibling tools that might be alternatives for readiness checks or release retrieval. An agent can infer intent but must guess at boundaries.

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