generate_copilot_instructions

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

With no annotations, the description carries the full behavioral burden. It only states that a file is generated; it omits whether an existing file is overwritten, whether write permissions are required, and what side effects occur.

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?

A single efficient sentence, front-loaded with the action and output artifact. It avoids waste, though the extreme brevity contributes to the other gaps.

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 file-generating tool with no annotations, no output schema, and a nested object parameter, the description is far too thin. It omits parameter guidance, overwrite behavior, and any notion of what the generated file contains.

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 coverage is 0% and the description explains neither parameter. The nested 'analysisData' object is especially opaque, and 'projectPath' is left without format or default information, so the description fails to compensate for the schema gap.

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?

States a specific verb ('Generate') and resource ('.github/copilot-instructions.md') plus basis ('project analysis and best practices'). Sibling differentiation is implied by the unique artifact but not made explicit against analyze_project, update_readme, or get_customization_recommendations.

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 when-to-use, when-not-to-use, prerequisites, or alternatives are given. 'Based on project analysis' hints at a dependency, but the agent receives no guidance on selecting this over its siblings or on required preconditions.

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