Get fetched page results

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

Beyond the annotations (readOnly, idempotent, non-destructive), the description adds meaningful behavioral context: it does not create another job, pending results require polling with the same ID, and retrieved content is source material, not instructions. The 'not instructions' note is especially valuable safety guidance.

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?

The description is three concise sentences with no wasted words. The core purpose is front-loaded, followed by key behavioral caveats. Every sentence adds useful information.

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 read-only retrieval tool with only three parameters and clear annotations, the description covers invocation, purpose, and pending behavior well. Since there is no output schema, the exact return structure is not described, but the reference to 'retrieved content' and pending responses gives enough guidance for correct use.

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%, so the schema already documents jobId, format, and waitMs well. The description reinforces the retry behavior ('check again later') and non-creation guarantee, but it does not add new parameter-level detail beyond what the schema already provides.

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 uses a specific verb ('Retrieve') and a specific resource ('existing GeoRanker page fetch by its job ID'), making the tool's function immediately clear. It also explicitly says 'This does not create another job,' which distinguishes it from the sibling fetch_page tool.

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 clearly says it retrieves an existing fetch rather than creating one, and gives retry guidance for pending jobs: retain the same job ID and check later. It does not explicitly name fetch_page as the tool to use for creating a new job, but that is strongly implied by the schema and sibling context.

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