reqsign_generate_hmac

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It says only "Generate HMAC request signing" and does not state whether the tool writes files into the directory, overwrites existing code, requires configuration setup, or has any side effects. Given the reqsign family context, an agent cannot anticipate what invoking it will actually do.

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 five words with zero fluff, but this is under-specification rather than crafted conciseness -- it earns its place yet omits essential information an agent needs. A 3 reflects that it is brief and readable but not appropriately scoped.

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?

With no annotations, no output schema, and only 50% parameter schema coverage, the two-sentence burden falls entirely on this thin description. It does not say what the tool returns, what `api_key` is for, what files it touches in `directory`, or how it relates to reqsign_generate_aws/reqsign_add_verification -- leaving an agent under-informed for a 2-parameter generation 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?

Description adds no meaning beyond the schema. Only `directory` is documented in the schema (50% coverage); `api_key` has no schema description and the tool description never explains its role, e.g., that it is the secret used to produce the HMAC signature. The description neither compensates for the uncovered parameter nor clarifies whether `api_key` is needed at all when generating the signing implementation.

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?

"Generate HMAC request signing" states a specific verb and resource, and the HMAC qualifier distinguishes it from siblings like reqsign_generate_aws and reqsign_add_verification. However, it does not explicitly differentiate itself from those siblings, and it leaves unclear what artifact is produced (code, config, or a signature).

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 gives no guidance on when to use this tool versus reqsign_generate_aws, reqsign_add_verification, or any other sibling. An agent must infer context from the name alone; no exclusions, alternatives, or conditions are stated.

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