Send a raw Grips query (escape hatch)

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

Annotations already declare readOnlyHint=true, destructiveHint=false, idempotentHint=true, so no behavioral surprises. The description adds that the response is returned verbatim with no formatting, which is useful beyond annotations.

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?

Three sentences, each serving a distinct purpose: what it does, when to use, and what to expect. No filler, well-organized.

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?

Given no output schema, the description explains the raw JSON response and the user's responsibility for parsing. It also provides a link for further schema details. Covers all necessary aspects for an escape hatch tool.

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%, but the description adds valuable context: it explains that 'query' is a Grips-flavored GraphQL-like string with a link to the schema, and that 'variables' often expects filters with domain, date, and country. This goes beyond the schema.

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?

The description clearly states it sends an arbitrary Grips query and returns raw JSON, and explicitly distinguishes from sibling tools by positioning itself as an escape hatch when purpose-built tools don't suffice.

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 description explicitly says 'use this only when the purpose-built tools... don't cover what you need', providing clear when-to-use and when-not-to-use guidance, and mentions that the user is responsible for parsing the response.

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