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

Annotations already cover the safety profile (readOnly, idempotent, non-destructive, open world). The description earns extra credit by naming the possible terminal outcomes (ready_to_submit, needs_correction, source_check_inconclusive) and the fact that remedies come back with them, which nothing in the structured data discloses. It stops short of stating cost/latency or what makes source checks inconclusive.

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 sentences, front-loaded with the action and workflow position, with the return-value list packed efficiently. 'Public access.' is clipped to the point of ambiguity but costs almost nothing.

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 description carries the return-value burden since no output schema exists, and it does so reasonably. The gap is the input side: with 0% schema coverage on two parameters, the definition is under-specified for actually invoking the tool.

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 0% and the 'submission' parameter is completely untyped. The phrase 'associated public sources' loosely gestures at source_handles, but format, expected contents, the 4-item cap, and the shape of 'submission' are all undefined in both schema and description, so an agent cannot construct a valid call confidently.

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 specific verb (Validate) plus resource (submission) and adds the pre-write inspection scope, so the purpose is clear. However it never distinguishes itself from the close sibling validate_submission, leaving an agent to guess which of the two validation tools applies.

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?

'before writing' implies this is a pre-submission gate, which gives usable context. But there is no explicit when/when-not and no named alternative (e.g. validate_submission vs draft_submission), so routing is left to inference.

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