Call any Pinterest v5 endpoint

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

Annotations declare readOnlyHint=false and openWorldHint=true; the description adds that it uses the configured token (auth context) and implicitly that it performs no input validation and surfaces raw failures, unlike dedicated tools. It stops short of describing error/response shape or rate-limit behavior, so it is strong but not exhaustive.

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?

Four tight sentences, front-loaded with the 'Escape hatch' framing and the base URL constraint last. Every sentence carries decision-relevant information with no padding.

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 no-output-schema, open-world escape hatch with full param coverage, the description supplies the routing rule, examples, and base URL an agent needs to call it. It omits only response/error shape and pagination, which are minor for this generic proxy.

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%, so all four parameters are already documented, including the path examples and method enum. The description only reiterates that the path is relative to the v5 root, adding no syntax or format detail 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 (issue an arbitrary request) and resource (Pinterest API v5) and explicitly frames itself as an escape hatch distinct from the dedicated siblings. An agent immediately understands this is the generic fallback rather than one of the specialized tools.

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 explicit when-to-use (endpoints no dedicated tool covers, with concrete examples: ad accounts, catalogs, audiences, conversion events) and when-not (prefer the specific tools when one exists), plus the reason — dedicated tools validate input and explain failures. Nothing is left to inference.

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