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

Annotations already indicate this is a non-read-only, non-idempotent, non-destructive mutation, so there is no contradiction. The description adds the useful precondition that the upload must already have happened, but it does not disclose what state changes occur, whether repeated calls fail, or what downstream effects completion triggers.

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?

A single sentence with the action front-loaded and the key prerequisite included. There is no redundant restatement of the schema or filler.

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 simple three-parameter completion step with fully documented parameters, the description gives the essential workflow context: this call finalizes a document capture after the GCS signed-URL upload. It does not describe return values or detailed side effects, but those are not necessary for a basic completion call given the schema and annotations.

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?

The schema covers 100% of parameters with meaningful descriptions: id, captureId, and fileName are all explained. The description adds no parameter-level details beyond the schema, so it meets the baseline for high schema coverage without needing to compensate.

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 identifies a concrete action ('Complete a document capture') and a specific workflow step ('after uploading to GCS via signed URL'), which separates it from upload-creation tools and from image/video completion tools. It does not explicitly contrast with completeClarityOrganizationDocumentUpload or completeClarityTeamDocumentUpload, so some sibling differentiation relies on the tool name.

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 phrase 'after uploading to GCS via signed URL' provides a clear temporal condition and tells the agent when in the workflow this tool should be called. However, it does not name alternative completion tools or state when to prefer the organization/team/artifact variants, leaving routing to inference.

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