get_cobie_headers

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

The description mentions 'row 1 only' which provides some behavioral detail, but it does not disclose error handling, return format, or any side effects. Since there are no annotations to supplement, the description carries the burden and is somewhat sparse.

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, concise sentence that directly states the tool's purpose without any fluff or redundant information.

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 read-only getter, the description provides enough context about what it returns (headers per sheet, row 1 only). The lack of an output schema is mitigated by the simplicity of the operation, though explicit return structure details could enhance completeness.

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 only parameter, excel_path, is self-explanatory and the schema covers 100% of parameters. The description does not add additional meaning beyond the schema, so a baseline score of 3 is appropriate.

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 clearly states the tool returns workbook headers for each sheet, specifically row 1 only, which is a specific verb and resource. It distinguishes itself from sibling tools like list_sheet_rows or get_cobie_hierarchy by focusing solely on headers.

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 does not explicitly state when to use this tool versus alternatives. While the function is clear, there is no guidance on when choosing this over e.g., list_sheet_rows or get_cobie_hierarchy would be appropriate. The context is implied but not stated.

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