build_sheet_manifest

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

With no annotations, the description carries full burden. It discloses that the tool does not read raw pixels, but omits other behavioral aspects such as whether it writes data, requires permissions, handles errors, or is destructive. The single behavioral note is insufficient for full transparency.

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 quickly communicates the core action and a key constraint (no pixel reading). It is front-loaded and efficient, though slightly more structure (e.g., clarifying output) could improve it without making it verbose.

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 the minimalist schema (no output schema, no parameter descriptions) and no annotations, the description should provide more context about inputs, outputs, and behavior. It only addresses input and a single restriction, leaving gaps needed for accurate usage.

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%, yet the description adds no detail about the 'files' parameter, such as expected structure, allowed file types, or required keys in the objects. The description fails to compensate for the lack of schema documentation.

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 builds sheet_manifest metadata from filenames and explicitly says it does not read raw pixels. The verb 'build' and the specific resource 'sheet_manifest metadata' provide a clear purpose, distinguishing it from tools that process image content. However, the output format is not described, leaving some ambiguity.

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 implies usage when metadata extraction from filenames is needed without pixel-level processing, but it does not provide explicit when-to-use or when-not-to-use guidance, nor does it mention alternative tools. The context is implied but not clearly stated.

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