sign_feature_release

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

With no annotations, the description is the sole source of behavioral detail; it does usefully add the signing algorithm (Ed25519) and the Pro entitlement requirement, which an agent needs before calling. However, it says nothing about required auth, whether the manifest is immutable, what happens on entitlement failure, or how the signature is returned.

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 purpose is front-loaded in one good sentence, but the following three lines are marketing copy about calibration, mid-print edits, and textures that has nothing to do with signing a manifest. Roughly half the text is wasted and actively distracts from the task.

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?

No output schema, no annotations, and five undocumented parameters mean the description must carry the burden, and it does not — it omits return shape, error behavior, and parameter meaning while spending its length on an upsell link.

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% across five parameters (feature_id, feature_version_id, name, signed_by, branch_name) and the description explains none of them. It provides no hint about identifier formats, whether signed_by defaults, or what branch_name does in the signing scope.

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 opening sentence names a specific verb and resource ('Produce an Ed25519-signed release manifest over the feature's content'), which is concrete enough to distinguish it from verify_feature_release or cloud_push_feature_release by intent. It stops short of explicitly contrasting with those siblings, so it lands at 4 rather than 5.

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?

There is no guidance on when to sign versus when to verify or push, no prerequisites beyond a buried 'Requires Kiln Pro' line, and no mention of what state the feature/version must be in. The remaining sentences are an upgrade pitch rather than usage guidance.

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