create_countersink_hole

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

Without annotations, the description mentions automatic selection of head diameter and angle, but lacks details on mutability, side effects, or success indicators. It does not contradict any annotations as none are provided.

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 concise, with two sentences that convey the core purpose efficiently. No unnecessary words, but could be slightly more structured.

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 no output schema, the description does not explain what the tool returns or the effect on the design. It covers the basic behavior but misses details like return value or feature type. Moderately complete.

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 input schema has full coverage (100%), so baseline is 3. The description adds no additional meaning beyond what is in the schema; it does not elaborate on parameter usage or constraints.

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?

Clearly states it creates a countersink hole for JIS flat head screws, specifying the standard and that it automatically selects head diameter and angle. This distinguishes it from siblings like create_counterbore_hole.

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 for JIS flat head screws but does not explicitly state when to use this tool versus alternatives like create_counterbore_hole or create_threaded_hole. No exclusions or context provided.

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