hash_md5

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

With no annotations, the description bears full responsibility for behavioral disclosure. It fails to mention that MD5 is cryptographically broken, which is a key behavior trait. It also does not describe side effects, permissions, or output format.

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 extremely short (three words), but it is under-specified rather than concise. It fails to earn its place by omitting essential context. A single sentence without structure is insufficient.

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 20+ sibling tools, a boolean parameter with default true, and known security issues with MD5, the description is grossly incomplete. It does not address output schema, security implications, or how this tool fits into the broader set.

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 compensate. It provides no explanation for 'data' or 'usedforsecurity' beyond the raw schema. The boolean 'usedforsecurity' defaults to true but its meaning is left ambiguous.

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 action 'Compute' and the specific resource 'MD5 hash', distinguishing it from sibling hash functions by name. However, it does not elaborate on the specific characteristics of MD5 vs other hashes, missing a chance for full differentiation.

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 MD5 versus other hash functions like SHA-256 or Blake2. Also, no mention of security considerations or the 'usedforsecurity' parameter, which is critical given MD5's known vulnerabilities.

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