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

No annotations are provided, so the description carries the full burden. It mentions the style parameter (posix/windows) but does not describe edge cases, error handling, or behavior for invalid paths. For a simple utility, this is adequate but not comprehensive.

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 two sentences, front-loaded with the action ('Normalize filesystem path'), and contains no unnecessary words. Every part serves a purpose.

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 and no annotations, the description should cover behavior thoroughly. It explains purpose and style but lacks details on return format, error behavior, or edge cases (e.g., empty path, root path). Minimal but functional for a simple tool.

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%, so the description must add value. It does clarify the 'style' parameter by mentioning posix and windows, but does not explain the 'path' parameter format or what normalization entails beyond resolving . and .. . Partial improvement over schema alone.

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 normalizes filesystem paths by resolving '.' and '..' for both posix and windows. It uses a specific verb ('normalize') and distinguishes from sibling tools like 'path_safety_check' which focuses on safety, not normalization.

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 includes 'When: Resolve . and .. in filesystem paths', which explicitly states a use case. However, it does not mention when not to use or compare with alternative tools. Given the lack of directly competing siblings, the guidance is present but could be more explicit.

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