build_upload_files__update

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

Annotations already declare idempotentHint and destructiveHint. The description only repeats 'Update' which aligns with these hints but adds no new behavioral context (e.g., what happens when uploaded is set to true, or how checksums are validated). The description does not contradict annotations but fails to enhance transparency.

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 extremely concise, consisting of a single sentence and the endpoint. It is front-loaded with the action and resource. Every word is necessary, and there is no fluff.

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?

The tool is a simple update with a complex input schema. The description is minimal and does not explain the expected response or any side effects. However, given the standard JSON:API pattern and no output schema, a bare-minimum description might be adequate, but it leaves gaps for an agent unfamiliar with the API.

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 the baseline is 3. The description does not add any meaning beyond the schema; it simply names the operation. The schema itself provides full details on required fields and optional attributes. No extra semantics are 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?

The description clearly states 'Update a build upload file' with a specific verb and resource. It also shows the HTTP method and path, reinforcing the action. However, it does not explicitly differentiate from sibling tools like 'build_upload_files__create' or 'build_uploads__update' (if exists), though the action is distinct.

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?

No guidance is provided on when to use this tool versus alternatives. The description does not mention prerequisites, typical scenarios, or exclusions. An agent would need to infer usage from the name and schema.

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