detect_grid

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

No annotations exist, so the description must disclose all behavioral traits. It lacks details on side effects (likely none), output format, idempotency, or performance considerations. The description merely states what it detects, not much about how it behaves.

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?

Extremely concise at one short phrase, but it lacks sentence structure. While efficient, it may be under-specified for an agent; a bit more context could improve usability without adding much length.

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 tool has no parameters, no output schema, and no annotations. The description only says it identifies boundaries but doesn't explain the return value (e.g., coordinates, boolean, or structured data). For a detection tool, this missing output info leaves the agent guessing about how to use the result.

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?

No parameters exist, so baseline is 4. The description clarifies the tool's purpose beyond the empty schema, adding meaning by specifying detection targets (boundaries and headers).

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 explicitly states it identifies row/column header areas and boundaries (ABCD, 1234). The verb 'detect' and resource 'grid boundaries' are specific. It distinguishes from sibling tools like click_cell or input_cell, which operate on cells rather than detecting the grid structure.

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?

No guidance on when to use this tool versus alternatives. The term '基础' (basic) hints it's a prerequisite step, but there is no explicit context, exclusions, or references to related tools.

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