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

Annotations already declare non-readOnly, non-destructive, non-idempotent, closed-world behavior. The description usefully adds the required write scope (auth context), but says nothing about what happens on duplicate submission, error behavior, or how the file_path must be obtained.

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 short sentences with no filler and the action front-loaded. It is efficient, though it is arguably too terse given the tool's complexity.

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 an 8-parameter, 4-required create tool with no output schema, the description omits essential context: the upload-URL prerequisite for file_path, the folder_id relationship, and what the record represents. Annotations cover the safety profile but not the workflow needed to invoke this correctly.

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 all 8 parameters are already documented in the schema (including format, length, and required notes). The description adds no parameter meaning beyond that, so the baseline of 3 applies.

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?

States a clear specific verb and resource ('Create a project document record'), which distinguishes it from generic create_* tools. However, it offers no differentiation from close siblings such as create_asset_document, create_contract_document, and create_project_document_folder_template that an agent must choose between.

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 only guidance is the permission prerequisite ('Requires project_documents:write scope'). It never says when to use this tool versus the other document/attachment creation siblings, nor does it mention the critical upstream step implied by file_path ('Storage path from upload URL response'), i.e. that create_upload_url must be called first.

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