Upload exact bytes from a private receipt

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

Annotations already disclose readOnlyHint=false, destructiveHint=true, idempotentHint=false, and openWorldHint=true. The description redundantly restates that it is an explicit PUT with 'explicitly confirmed' approval, adding little beyond the destructive/non-idempotent profile. It does not explain irreversibility, what gets overwritten, or auth requirements beyond 'no Fourthwall credentials.'

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?

It is compact and front-loaded with the core action, but the dense jargon makes it less readable than a plain statement would be, and 'exact size/Content-Type and x-goog-content-length-range are preserved' is detail that could be trimmed.

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 destructive, non-idempotent, open-world upload with no output schema, the description omits the receipt/input file lifecycle, failure modes, and what the agent should do after a successful PUT. It never mentions the sibling confirm_digital_file_upload, so the agent lacks the surrounding workflow context.

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 only 50%. The description clarifies that receipt_file and input_file are a private receipt and a local regular file, but it does not map or explain account or confirm beyond what the schema already says. The two required parameters are implied, not documented, leaving gaps for a 4-parameter tool.

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 says it is a 'Google Storage PUT' from a 'private upload receipt' to a 'bounded local regular file,' which is a specific action, but the vocabulary (private receipt, bounded local regular file, content-length-range) is opaque and not differentiated from related siblings like request_digital_file_upload_url or confirm_digital_file_upload. An agent cannot quickly tell what resource is being uploaded or how it relates to the receipt flow.

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 explicit when-to-use or when-not-to-use guidance. The phrase 'no automatic registration/publishing' implies a boundary but does not name siblings or prerequisites, so the agent must infer when this exact-bytes PUT is preferred over the request/confirm upload siblings.

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