Conciseness

Roughly 150 lines re-explain general knowledge Claude already has: cloud secret store provider comparison tables, GitHub Actions/GitLab secret injection conventions, audit-log alerting strategies, and generic advice like 'Never echo or print secret values'. The Secret Rotation section also duplicates the rotation workflow already detailed in references/validation-detection-rotation.md. Several padded sections of known material — anchor 2, not 3, because the padding is section-level rather than isolated sentences.

Actionability

The Quick Start gives executable commands against a real script ('python3 scripts/env_auditor.py /path/to/repo --json'), the gitleaks TOML config is copy-paste ready, and detect-secrets baseline commands are concrete. Minor gaps: the .pre-commit-config.yaml content is fenced as bash rather than yaml, and the rotation/alerting sections give direction without commands — anchor 4 rather than 5.

Workflow Clarity

The Recommended Workflow is a clear 5-step sequence, and the rotation workflow embeds verification checkpoints ('Verify each consumer can authenticate', 'Revoke the old credential only after all consumers are confirmed healthy') plus an emergency checklist with a defined order. Anchor 4 rather than 5 because the primary Recommended Workflow lacks an explicit validation step (e.g., re-run the auditor to confirm no secrets remain) after the rotate-and-cleanup steps.

Progressive Disclosure

References are clearly signaled in a dedicated 'Reference Docs' section and both referenced files exist, and the Quick Start is appropriately lean. However, the Cloud Secret Store Integration, CI/CD Secret Injection, Pre-Commit Secret Detection, and Audit Logging sections (~150 lines) are inline general-reference material that belongs in the references/ files — anchor 3 (content that should be separate is inline), not 4 (only minor organization gaps).

Specificity

The when-clause names concrete actions ("auditing .env files for committed secrets", "planning a credential rotation", "debugging missing-env-var production incidents"), but the what-statement leans on semi-abstract terms like "environment-variable hygiene" and "rotation readiness". This lists several specific actions with minor abstraction gaps — anchor 4, not 5, which demands comprehensively concrete phrasing throughout.

Completeness

Both questions are explicitly answered: what ("Manage environment-variable hygiene and secrets safety… Practical auditing, drift awareness, rotation readiness") and an explicit "Use when…" clause with four concrete trigger scenarios. This mirrors anchor 5's pattern of a clear what paired with explicit, concrete when-triggers; anchor 4 would require the when to be less specific than it is.

Trigger Term Quality

Natural phrases users would say are present: ".env files", "committed secrets", "credential rotation", "missing-env-var production incidents", "hardening", "secrets leakage". A few common variations are missing (e.g., "leaked credentials", "API keys", ".env.example"), matching anchor 4 (good coverage, a few natural terms missing) rather than anchor 5's comprehensive synonym coverage.

Distinctiveness Conflict Risk

The description carves out a clear niche (env-file hygiene, secret leak auditing, rotation planning) with distinct triggers unlikely to fire for unrelated skills. Overlap with a vault-infrastructure skill is possible but the described scope (local dev .env auditing, incident debugging) is distinguishable — anchor 5.