md5_hash

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

With no annotations, the description carries the full burden, but it does not disclose behavioral traits such as the output format (e.g., hex string), determinism, or the fact that MD5 is not cryptographically secure. This is a minimal description that does not inform the agent about important behavioral aspects.

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 that is direct and free of unnecessary words. It effectively communicates the tool's function without verbosity.

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 utility with one parameter and an output schema, the description is adequate to convey the core purpose. However, it could benefit from a brief note about output format or common use cases, but the presence of an output schema reduces the need for that.

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 already provides 100% coverage for the text parameter with a clear description ('The text string to hash'). The tool description adds no additional parameter semantics, matching the baseline of 3 for high schema coverage.

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 computes the MD5 hash of a text string, using a specific verb and resource. It distinguishes itself from siblings like sha256_hash (different algorithm) and base64_encode/decode (encoding, not hashing).

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, such as when to prefer MD5 over SHA-256 or when to avoid MD5 due to security concerns. The description only states the operation without contextualizing its use.

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