mitre_navigator_layer

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

No annotations are provided, so the description carries full burden. It mentions only the output (JSON for visualization) but does not disclose behavioral traits like side effects, authentication needs, error behavior, or performance implications.

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 sentence with a list, concise and front-loaded. However, it could be more structured (e.g., listing modes with brief explanations) without losing conciseness.

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 8 parameters and no output schema, the description is too brief. It does not explain the JSON output format, how diff mode works with compareGroupIds, or other usage details. Missing crucial context for effective tool 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?

With 100% schema description coverage, the baseline is 3. The description adds minimal context beyond the schema (e.g., explaining mode purposes), but the schema already provides detailed parameter descriptions, so the value added is marginal.

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 generates an ATT&CK Navigator layer JSON for visualization, listing specific use cases (coverage heatmaps, group overlays, campaign views, custom highlighting) which distinguishes it from siblings like mitre_attack_path or mitre_detection_coverage.

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 lists modes that imply usage contexts, but lacks explicit guidance on when to choose this tool over siblings, when not to use it, or any prerequisites. The information is implicit rather than direct.

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