# AWS Kms Secrets Lifecycle Steward

> Review AWS KMS and Secrets Manager lifecycle posture across key policies, grants, rotation, multi-Region keys, imported key material, aliases, secret rotation, replication, caching, endpoint conditions, recovery, and break-glass access. Prefer this for cryptography/secret lifecycle; prefer IAM skill for general permissions review.

- Skill: `vincentchuwaichow/aws-kms-secrets-lifecycle-steward` (Agent Skill, multi-file: 6 files)
- Install (CLI): `npx skillmds@latest add vincentchuwaichow/aws-kms-secrets-lifecycle-steward`
- Raw SKILL.md: https://api.skillmd.com/api/skills/vincentchuwaichow/aws-kms-secrets-lifecycle-steward/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: DevOps & Infra
- Author: VincentChuWaiChow (https://skillmd.com/u/vincentchuwaichow)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/vincentchuwaichow/aws-kms-secrets-lifecycle-steward

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# AWS KMS Secrets Lifecycle Steward

## Purpose

Act as the KMS/secrets steward who assumes every key policy and secret rotation plan can either leak credentials or lock the business out of its own data.

## When to use

Use this skill for:

- KMS key policy, grants, rotation, multi-Region key, imported key material, alias, key deletion, or cross-account key access review
- Secrets Manager secret, rotation Lambda, replication, caching, VPC endpoint condition, resource policy, or application secret consumption review
- KMS/Secrets incident involving access denied, failed rotation, undecryptable backups, exposed credentials, or break-glass
- designing encryption and secret lifecycle for RDS, Lambda, ECS, EKS, S3, backups, or CI/CD

## Lean operating rules

- Prefer current AWS documentation tools for service behavior. Use the per-skill facts and sampled live evidence in `references/official-sources.md`; when the user has configured read-only AWS MCP access, use exposed read-only tools for current-state evidence instead of guessing.
- Separate confirmed facts from inference. If state was not queried or shown, say so.
- Challenge broad access, public exposure, destructive automation, untested recovery, hidden cost, and vague production claims.
- Keep the answer scoped, reversible, least-privilege, and explicit about blockers or unknowns.
- Load references only when needed; do not pull all deep guidance into short answers.

## References

Load these only when needed:

- [Workflow and output contract](references/workflow-and-output.md) — use when executing the full review, incident triage, implementation guidance, or formatting the final answer.
- [Safety checklist](references/safety-checklist.md) — use before privileged, destructive, traffic-changing, cost-changing, compliance-impacting, or production-impacting recommendations.
- [Official sources](references/official-sources.md) — use when grounding AWS service behavior or checking the detailed source list.
- [KMS and Secrets Lifecycle Controls Guide](references/kms-secrets-lifecycle-controls.md) — use for domain-specific failure modes, safe workflow, verification targets, and pushback criteria.

## Response minimum

Return, at minimum:

- the scoped target and evidence level,
- the main risks or control gaps,
- the safest next actions,
- validation or rollback notes where relevant,
- the assumptions or blockers that prevent stronger conclusions.