# SCOPE > Lightweight boundary for agents and contributors. ## One-liner secrets-engine is the workflow and automation interface for approved secret custody, delivery, and lifecycle work across build, test, and production, with OpenBao as the initial enforcement backend. ## Core Idea OpenBao is the vault. secrets-engine is the day-to-day interaction layer that connects cataloged secret lanes, approval decisions, stage-specific OpenBao roles, safe delivery modes, and non-secret evidence. ## In Scope - Non-secret catalog of secret lanes, grants, consumers, stages, and delivery modes. - Decision-aware planning and apply flows for OpenBao policies, auth roles, and metadata. - Build, test, and production privilege separation. - Safe provisioning, verification, rotation, revocation, and deactivation workflows. - Exec-time delivery to operators, agents, CI jobs, workloads, and ops-bridge tasks without printing raw values. - ops-warden routing contract for non-SSH credentials. - State Hub non-secret evidence and progress integration. - Canonicalization of terms with info-tech-canon. ## Out of Scope - Replacing OpenBao as custody, policy, lease, or audit backend. - Replacing flex-auth authorization decisions. - Replacing user-engine/key-cape identity and claim lifecycle. - Issuing SSH certificates, which remains ops-warden responsibility. - Owning tunnels or remote transport, which remains ops-bridge responsibility. - Storing raw secret values in this repo, State Hub, chat, prompts, or logs. - Broad platform-root or platform-admin automation as a steady-state model. ## Relevant When - An approved decision needs to become a narrow OpenBao policy/auth-role apply without platform-root hand-typing. - A workload or operator command needs a secret delivered **into the command** without printing or exporting it (e.g. `npm publish`). - A non-SSH credential need (API key, provider token, npm token, DB password, scoped OpenBao token) is routed here by ops-warden. - Build/test/production need different privilege, ceremony, and delivery rules for the same kind of secret. - A reviewer needs non-secret evidence of who applied/provisioned/verified what. ## Not Relevant When - You need an **SSH certificate** (→ ops-warden `warden sign`). - You need an **authorization decision** (→ flex-auth). - You need **identity / OIDC / MFA / claim lifecycle** (→ user-engine / key-cape). - You need a **tunnel** or remote transport (→ ops-bridge). - You want OpenBao itself replaced as the custody/lease/audit backend (it is not). - You want a raw secret value moved through Git, State Hub, chat, prompts, or logs (never — delivery is exec-time or out-of-band only). ## Current State MVP delivered. The Python CLI (`src/secrets_engine/`) proves the `whynot-design-npm-publish` lane end to end — catalog → decision check → policy/AppRole apply → provision → positive/negative verify → exec-time npm delivery → ops-warden routing pointer → revoke — verified live against OpenBao (44 tests; `scripts/demo-e2e.sh`, `scripts/npm-publish-demo.sh`). The netkingdom maturity-gated publication-scope policy is in place but dormant (netkingdom at `maturity-build`), so lanes clamp to repo-scope / `NPM_AUTH_TOKEN`. Bootstrap workplans `SECRETS-WP-0001` (State Hub integration) and `SECRETS-WP-0002` (MVP) are finished. Open: `SECRETS-WP-0003` (real pilot close-out) and `SECRETS-WP-0004` (scoped `warden-sign` token lane for ops-warden / FLEX-WP-0007 T4), both proposed. ## How It Fits secrets-engine is the **interaction layer** in the NetKingdom security stack. It sits between approval/identity systems and the OpenBao backend: - **OpenBao / railiance-platform** — enforces custody, policy, lease, audit. secrets-engine drives it through least-privilege stage roles and validated paths, never as root. - **flex-auth / State Hub decisions** — authorize. secrets-engine requires and verifies a decision before privileged action and writes non-secret evidence back. - **user-engine / key-cape** — own identity and claims that bind consumers. - **ops-warden** — routes non-SSH credential needs here (conduit-not-broker) and issues SSH certs itself; secrets-engine mints and custodies the tokens. - **ops-bridge** — may consume scoped delivery for remote execution but stores no secret material. - **info-tech-canon** — source of canonical terminology and stage/policy concepts. Canonical cross-system boundary: `net-kingdom/docs/secrets-engine-security-infrastructure-boundary.md`. ## Terminology | Term | Meaning | | --- | --- | | **lane / catalog id** | a non-secret entry describing one secret's OpenBao location, consumers, delivery, approval | | **stage** | `build` / `test` / `prod` — separate OpenBao privilege contexts | | **stage role** | `secrets-engine-{build,test,prod}` OpenBao role, confined to its prefix | | **delivery mode** | how a value leaves OpenBao: `exec-env`, `npm-config`, `read-check`, `wrapped` | | **org / repo** | Gitea organisation (`coulomb`) / repository (`whynot-design`) — explicit, not the overloaded "project" | | **npm scope** | the `@`-prefixed npm name (`@whynot`) — distinct from org and repo | | **maturity** | `maturity-build/test/prod` package tag; feeds the publication-scope policy | | **bootstrap token** | temporary mode-0600 OpenBao token used during setup, revocable, outside repos | ## Related / Overlapping - **ops-warden** — front door / SSH cert issuer; routes non-SSH needs here. - **OpenBao (railiance-platform)** — the custody/policy/lease/audit backend. - **flex-auth** — authorization decisions secrets-engine depends on. - **user-engine / key-cape** — identity and claim lifecycle for consumers. - **ops-bridge** — remote transport; may consume scoped delivery. - **net-kingdom** — owns the cross-system security-infrastructure boundary doc. - **info-tech-canon** — canonical terminology source. ## Provided Capabilities ```capability type: security title: Decision-aware OpenBao policy/role apply description: Turns an approved State Hub decision into a narrow, guarded OpenBao apply — catalog lane to dry-run plan to idempotent ACL policy + AppRole write — through least-privilege build/test/prod stage roles. Refuses unapproved, superseded, wildcard, out-of-stage, or broad-admin plans before any backend call. Writes non-secret evidence. keywords: [secrets, openbao, vault, policy, approle, catalog, decision, stage, least-privilege, netkingdom] ``` ```capability type: security title: Exec-time secret delivery description: Delivers a secret into a child process only — never printing, exporting, or persisting the value. npm-config injects a temporary mode-0600 .npmrc pointing at the configured registry; exec-env injects a scoped env var. Temp config is cleaned up on success, failure, and interruption; child output is redacted as a backstop. keywords: [secrets, delivery, exec, npm, publish, token, injection, redaction, npmrc, openbao] ``` ```capability type: governance title: Maturity-gated publication-scope policy description: Binds npm publication scope to package maturity (build to gitea-wide, test to org-wide, prod to repo-scoped) and gates the graduated table behind the netkingdom domain reaching production grade. While dormant, every lane clamps to the safest repo-scope — fail-safe, never fail-open. The injected token env-var name signals the effective blast radius. keywords: [policy, maturity, publication-scope, governance, least-privilege, npm, gitea, netkingdom] ```