Download an iBabs attachment

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

With no annotations, the description carries the full burden. It usefully discloses the return shape (name, mime type, local path) and that PDFs/text come back as extracted text, which is real behavioral detail. However, it omits side-effect-relevant facts such as whether a file is written to disk, permissions required, or overwrite/error behavior for a tool whose name implies downloading.

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 lean sentences, front-loaded with the action and input, followed immediately by the return contract. Every clause earns its place and nothing is padded.

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?

No output schema exists, so the description appropriately summarizes returns (name, mime type, local path, extracted text) and schema coverage handles the two params. It is nearly complete for a simple download tool, missing only operational context like where the file lands and failure modes.

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 both parameters (documentId, extractText) are already documented in the schema, and the baseline is 3. The description references documentId but adds no syntax, format, or defaulting detail beyond what the schema already states.

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 pairs a specific verb ('Download') with a specific resource ('an attachment'), identifies the key input (documentId), and summarizes the return payload (name, mime type, local path). It is clearly distinct from list_meetings and get_meeting by resource, though it never explicitly names those siblings or contrasts itself with them.

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?

There is no when-to-use guidance, no prerequisites, and no mention of alternatives. The schema note that documentId comes 'from a meeting's attachments' hints at context, but the description itself gives the agent no routing or exclusion criteria.

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