Conciseness

The body is mostly efficient - terse tables, imperative bullets ("Fetch before configure", "Never guess image tags"), no explanations of concepts Claude already knows - but it could be tightened: the CD-on-CI-only rule is restated in the Interaction model ("Never block CD on 'no Deployment stage'"), the phase table row 3b, a dedicated "CD edge case (mandatory workflow)" section, Performance Notes, and Troubleshooting, and "do not call harness_execute" / "Do not execute pipelines" appears three times. This matches the anchor 'Mostly efficient but includes some unnecessary explanation or could be tightened' rather than 2, since the padding is repetition of actionable rules, not concept filler.

Actionability

Fully executable guidance: a copy-paste-ready SscaEnforcement YAML block with placeholders, variants for policy-only and no-verification, the concrete harness_update call with "body: { yamlPipeline: \"<updated pipeline YAML>\" }", a complete summary template, and error-code-keyed fixes ("DUPLICATE_IDENTIFIER - rename enforce_sbom", "Invalid policy.policySets - use policy set identifiers, not display names"). CD YAML is fully covered in the local reference (sbom-enforcement-step.md has 'Full example - CI' and 'CD Deployment (containerized step group)' sections), so specific examples cover the common cases, matching the score-5 anchor.

Workflow Clarity

The wizard is explicitly sequenced (Phases 0-10 plus 3b with a breadcrumb) with explicit validation checkpoints - "Fetch before configure" (harness_get before questions), "Confirm before write" (Phase 10 confirm before harness_update), "Do not modify unrelated steps, variables, or failure strategies" - and a real error-recovery feedback loop: "On validation errors, read the API message, fix fields (often verifyAttestation shape or policy.policySets), retry", plus a thorough symptom-to-fix Troubleshooting section. This matches the anchor 'Clear sequence with explicit validation steps; feedback loops for error recovery'.

Progressive Disclosure

Good structure: the two local references are real, clearly signaled, and one level deep ("Wizard: references/interactive-wizard-flow.md", "Full UI mapping: references/sbom-enforcement-step.md"), and the body appropriately keeps the overview inline. It falls short of 5 because several referenced paths point outside the bundle - skills/platform/create-sbom/references/cd-containerized-step-group.md, skills/platform/create-sbom/references/sbom-orchestration-step.md, and skills/observability-governance/create-policy/references/entity-sbom.md do not exist in this skill's bundle - so navigation breaks if the sibling skills are not installed, and the body's wizard phase table duplicates content in interactive-wizard-flow.md.

Specificity

Multiple concrete actions with comprehensive coverage: "Add an SBOM Policy Enforcement (SscaEnforcement / CdSscaEnforcement) step to an existing Harness pipeline to verify SBOM attestations and apply OPA SBOM policy sets" is augmented by "if no Deploy stage exists, add one via Phase 3b (service, environment, infra, containerized step group) then place CdSscaEnforcement before deploy" and enumerated sources ("Artifact Registry, Third-Party registries (docker, ECR, GCR, GAR, ACR), and Git"). This matches the score-5 anchor 'Lists multiple specific concrete actions; comprehensive coverage' - not 4, since no stage type or source type is left uncovered.

Completeness

Both 'what' and 'when' are explicit and concrete: the what is "verify SBOM attestations and apply OPA SBOM policy sets" with scope limits ("Only works with existing pipelines (may append a Deploy stage)"), and the when is "Use when asked to enforce SBOM policies, add SBOM policy enforcement, verify SBOM attestation in pipeline, or block non-compliant components" plus a separate trigger-phrase list. This exactly matches the anchor 'Clearly and explicitly answers both what AND when with concrete trigger phrases'.

Trigger Term Quality

Comprehensive natural-term coverage: the explicit "Trigger phrases: enforce SBOM, SBOM policy enforcement, SBOM policy step, verify SBOM policy, SscaEnforcement, add policy enforcement after SBOM" list is reinforced by the use-when clause's "verify SBOM attestation in pipeline, or block non-compliant components" - a symptom-style phrase users would genuinely say. These are the natural synonyms for this domain (there are no file extensions to cover), matching the score-5 anchor rather than 4's 'a few natural terms missing'.

Distinctiveness Conflict Risk

Clear niche with distinct triggers: every trigger is enforcement-oriented ("enforce SBOM", "add policy enforcement after SBOM") and clearly separated from sibling SBOM-generation skills, with the boundary "Only works with existing pipelines (may append a Deploy stage)" preventing overlap with pipeline-creation skills. This matches the score-5 anchor 'Clear niche with distinct triggers; minimal conflict risk' - the only conceivable overlap is with /create-sbom on the shared term 'SBOM', which neither description triggers on in isolation.