env_parse

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

With no annotations, the description carries the full burden. It discloses key behaviors: shows keys, detects missing values, duplicate keys, and invalid lines. This is informative, though it does not specify output format or error handling, which would make it more complete.

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 main description is a single concise sentence that packs relevant information. However, the '[PRO — 3 trial uses left]' prefix is extraneous noise that does not serve the agent and slightly hurts structure.

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 simple one-parameter utility with no output schema or annotations, the description is reasonably complete: it explains the parse/validate behavior and the types of issues detected. It could be more explicit about return structure, but it is not critically incomplete.

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?

The schema describes the only parameter 'content' with 100% coverage. The description adds no new parameter-specific details beyond restating that it parses .env content, so it does not elevate the meaning beyond what the schema already provides.

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's function: 'Parse and validate .env file contents' with specific outputs like 'shows keys, detects issues like missing values, duplicate keys, or invalid lines.' This is a specific verb+resource that distinguishes it from the other utility siblings.

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 implies usage for parsing .env files but does not explicitly state when to use it versus alternatives, nor does it mention any exclusions. The '[PRO — 3 trial uses left]' prefix hints at a usage limitation but does not provide clear guidance.

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