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

Annotations already declare readOnlyHint=true, openWorldHint=true, idempotentHint=false, and destructiveHint=false, so the safety profile is covered. The description adds that the result is a synthesized answer with links to source pages, which is useful output context, but it does not explain the non-idempotent behavior (why repeated identical questions may yield different answers) or any latency/rate behavior for an open-world query.

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 sentences, zero waste, front-loaded with the capability and then the routing rule. Every clause earns its place by either describing the tool or steering the agent to the right sibling.

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?

There is no output schema, but the description covers the essential return shape (synthesized answer plus source-page links), and annotations cover safety. What is missing is any note on answer reliability, citation-only queries, or behavior when documentation has no answer, which a Q&A tool could usefully state.

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 both parameters (question, goal) are already documented in the schema, including the goal's purpose of tailoring the answer. The description adds no syntax, formatting, or example guidance 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 (ask a natural-language question), a specific resource (Sigrex Documentation), and the output form (synthesized answer with source links). It names its siblings searchDocumentation and getPage and distinguishes itself from them, so an agent can route without opening schemas.

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?

Explicitly gives the when: 'Prefer this over searchDocumentation when you want a direct answer to a question rather than a list of matching pages.' It also gives the inverse condition: use searchDocumentation/getPage 'when you need to browse or read full pages yourself.' Both alternatives and their selecting conditions are named.

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