Fetch a public IMBA Agent URL

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

Annotations already convey readOnlyHint, idempotentHint, and non-destructive behavior. The description adds concrete detail: it performs an HTTP GET, targets only allowlisted public docs, and explicitly disavows state-changing operations. This enriches the safety profile beyond the annotations without contradicting them.

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 tight sentences with the core action and constraints front-loaded. No filler or redundancy; the negative assurance about register/deposit/buy earns its place by reinforcing the tool's non-mutating nature.

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 one-parameter, read-only tool with full schema coverage and safety annotations, the description is nearly complete. It lacks only explicit error or return behavior for non-allowlisted URLs, which is not critical for correct invocation.

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 the description adds little beyond the schema's own explanation of the url parameter. The mention of public docs and allowlist is already in the parameter description, so no extra semantic value is provided.

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 the mechanism (HTTP GET) and resource (an allowlisted public docs URL), with concrete categories like HowTo, use cases, discovery JSON, and llms-agent. This is specific enough to separate it from the sibling getters and from mutating operations.

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 only usage guidance is implicit: the URL must be allowlisted public docs and the tool never calls register/deposit/buy. It does not explicitly say when to choose this over siblings like get_agent_use_cases or list_docs_urls, nor give positive selection criteria beyond the allowlist.

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