vulnforge_audit_cosign

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

No annotations are provided, so the description carries the full behavioral burden and does not meet it: it never says whether the audit is read-only, whether verification contacts live Sigstore/Rekor endpoints, whether any artifacts are mutated, or what a pass/fail result looks like. It also omits that all 8 parameters are optional, leaving unclear what happens if only imageReference (or nothing) is supplied.

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?

It is a single front-loaded sentence with no filler, which is efficient. However, it is a dense wall of acronyms (CWE lists, SET, SLSA, SAN) with no structural breakdown, so the actionable scope is harder to scan than a two- or three-clause version would be.

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 tool with 8 optional parameters, a nested keylessConfig object, three overlapping raw-content inputs, no annotations, and no output schema, the description is thin. It never clarifies which input field to prefer for a given artifact type, what minimum input is required, or what the audit produces — a significant gap the agent cannot fill from structured fields alone.

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 100%, so the baseline is 3: each parameter already carries its own description, including the keylessConfig sub-fields. The prose adds no parameter-level meaning beyond the schema — it does not explain the aliasing among content/policyContent/manifestContent or how the strictRekor and requireSlsa defaults change behavior.

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?

States a specific verb (audits) and a precise resource set: Cosign signatures, Sigstore keyless attestations, Rekor SETs, SLSA Build L3 provenance, and Kyverno/Gatekeeper admission policies, plus the eight CWE vectors checked. An agent can tell this is the signature/attestation/admission auditor rather than the SBOM or generic container auditor. It falls short of 5 because it never names the overlapping siblings (vulnforge_audit_intoto, vulnforge_audit_container, vulnforge_audit_sbom) or the boundary between them.

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 when-to-use guidance, no exclusions, and no mention of alternatives among the ~20 sibling audit tools. The description only describes what the tool inspects, leaving the agent to infer that it should be chosen for signed-artifact or admission-policy inputs rather than for adjacent supply chain audits.

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