fill_form

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

No annotations are provided, so the description must convey behavioral traits. It mentions 'byte-preserving' and 'new copy', implying non-destructive behavior, but does not disclose what happens on error, how parameters like dry_run, auto_fit, etc. affect behavior, or any side effects beyond file creation.

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 a single sentence with no redundancy. It is concise, but it sacrifices clarity on parameter semantics and usage context. Could be expanded slightly without losing conciseness.

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?

Given 10 parameters, zero schema descriptions, no annotations, and many sibling tools, the description is severely incomplete. It does not explain what the tool returns (though output schema exists), how the boolean flags interact, or how to handle edge cases like missing fields or invalid paths.

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 description only implicitly covers path, values, and out_path. The other 7 parameters (backup, dry_run, auto_fit, mask_pii, respect_bullets, normalize_spacing, checkbox_exclusive) are not explained at all. The description fails to add semantic meaning beyond the parameter names.

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 states the tool fills detected named/label fields and writes a new byte-preserving HWPX copy. This clearly identifies the primary action and output, but it could elaborate on what 'fill' means or how fields are detected. It distinguishes from many sibling tools that perform other edits, but not from similar ones like apply_addressed_edits.

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 description provides no guidance on when to use this tool versus alternatives. It does not mention prerequisites, limitations, or scenarios where other sibling tools would be more appropriate.

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