clear_field_value

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

With no annotations, the description carries full burden. It states the tool 'removes/clears the value', implying a destructive mutation, but doesn't disclose permissions needed, whether the change is reversible, rate limits, or what happens to the field after clearing (e.g., becomes null/empty). It lacks behavioral context beyond the basic action.

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, efficient sentence with zero wasted words. It's front-loaded with the core action and resource, making it easy to parse quickly.

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 destructive mutation tool with 3 undocumented parameters, 0% schema coverage, and no output schema, the description is inadequate. It doesn't compensate for the missing parameter documentation or provide necessary behavioral context, making it incomplete for safe and effective use.

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 provides no information about the three required parameters (projectId, itemId, fieldId). It doesn't explain what these IDs represent, their format, or how to obtain them, leaving parameters completely undocumented.

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 action ('Clear a field value') and resource ('for a GitHub project item'), specifying it works for 'any field type'. It distinguishes from sibling 'set_field_value' by focusing on removal rather than assignment, though it doesn't explicitly name that sibling.

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 is provided on when to use this tool versus alternatives like 'set_field_value' (for setting values) or 'remove_project_item' (for deleting entire items). The description mentions it works for 'any field type' but doesn't specify prerequisites or constraints.

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