# FINAL HARDENING REPORT — Aura Work `0.1.0-alpha.1`

Branch: `fix/final-security-hardening`  
Date: 2026-06-01  
Status: **Ready for PR review — history rewrite NOT executed (awaiting explicit approval)**

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## Summary

Security hardening completed on branch `fix/final-security-hardening` from latest `main`. Private planning content is excluded from the tree, agent file writes are validated with Zod, SSRF/host/computer-use/sidecar protections are enforced with tests, Tauri production bundle no longer ships the VM placeholder, and the full QA pipeline passes locally.

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## Phase 1 — Private PRD removal

| Item | Result |
|------|--------|
| `PRD/` tracked in Git | **Not present** in `main` or this branch |
| `PRD/` in `.gitignore` | **Present** (line 48) |
| Working tree `PRD/` folder | **Absent** |

**Note:** PRD was already removed in the squashed `main` commit; this branch confirms exclusion and keeps `.gitignore` rule.

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## Phase 2 — External IDE attribution

| Item | Result |
|------|--------|
| Product prompts | Aura Work identity only (`coordinator.ts`) |
| `HARDENING_REPORT.md` (contained IDE history notes) | **Deleted** |
| CSS `cursor: pointer`, `pull_cursor`, `SetCursorPos` | Retained (legitimate) |
| `.gitignore` comment | `# Local IDE metadata` + `.cursor/` |

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## Phase 3 — Agent placeholder rejection

| File | Change |
|------|--------|
| `sidecar/aura-agent/src/task/model-response.ts` | **New** — Zod schema validation |
| `sidecar/aura-agent/src/task/coerce-response.ts` | **New** — strict coercion, blocked on invalid output |
| `sidecar/aura-agent/src/task/coordinator.ts` | Removed fence-to-file guessing |
| `sidecar/aura-agent/src/task/extract-writes.ts` | Only explicit fence header paths |
| `sidecar/aura-agent/src/task/model-response.test.ts` | **New** — 11 tests |

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## Phase 4 — Browser SSRF (verified + test)

Already implemented in `url-guard.ts` / `browse.ts`. Added metadata IP test for `169.254.169.254`.

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## Phase 5 — Host shell fallback

| File | Change |
|------|--------|
| `sidecar/aura-vm-helper/src/exec.ts` | Sensitive env name blocklist; `isUnsafeHostExecutionAllowed()` |
| `sidecar/aura-vm-helper/src/exec.test.ts` | **New** — default-off tests |

Default: disabled unless `AURA_ALLOW_UNSAFE_HOST_EXECUTION=1`.

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## Phase 6 — Computer use default-off

Already implemented in `sidecar/aura-computer-use/src/index.ts`. Added gate test.

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## Phase 7 — Sidecar Bearer auth

Already implemented (`packages/shared/src/sidecar-auth.ts`, `apps/desktop/src-tauri/src/sidecar_auth.rs`, all sidecar `index.ts` files).

**Future plan (not implemented):**
- Unix domain sockets (macOS/Linux)
- Named pipes (Windows)
- Random ephemeral ports instead of fixed defaults

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## Phase 8 — Vault OS keychain

Already implemented in `apps/desktop/src-tauri/src/vault.rs` with migration from legacy `device.key`.

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## Phase 9 — Tauri production config

| Setting | Value |
|---------|-------|
| Version | `0.1.0-alpha.1` |
| `devtools` | `false` |
| CSP | Strict (not null) |
| Bundle targets | `nsis`, `deb`, `dmg`, `app` (MSI excluded — Windows MSI rejects non-numeric prerelease `alpha.1`) |
| `createUpdaterArtifacts` | `false` until release signing keys configured |
| VM placeholder in bundle | **Removed** from `tauri.conf.json` resources |

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## Phase 10 — VM placeholder rejection

| File | Change |
|------|--------|
| `apps/desktop/src-tauri/src/packaging.rs` | Production rejects dev placeholder; minisign verify hook; 3 Rust tests |
| `scripts/stage-bundle.mjs` | Already exits 1 on production placeholder |
| `tauri.conf.json` | Placeholder artifact no longer bundled |

Dev placeholder files remain under `bundle/vm-image/` for local development only.

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## Phase 11 — Release pipeline fail-closed

Already implemented in `scripts/stage-bundle.mjs` and `.github/workflows/release.yml`.

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## Phase 12 — CI / test results (local)

| Command | Result |
|---------|--------|
| `npm run build:sidecars` | ✅ Pass |
| `npm run build:cloud` | ✅ Pass |
| `npm run build:bridge` | ✅ Pass |
| `npm run test:sidecars` | ✅ **26/26** |
| `npm run test:rust` | ✅ **19/19** |
| `npm run test:acceptance` | ✅ **14/14** |
| `node scripts/audit-licenses.mjs` | ✅ Pass (THIRD-PARTY-NOTICES updated) |
| `npm run build` | ✅ Pass |
| `npm run stage:bundle` | ✅ Pass |
| `npm run tauri build -w @aura-os/desktop` | ✅ Pass (NSIS installer built) |
| `npm run qa` | ✅ Pass |

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## Phase 13 — Public documentation

| File | Status |
|------|--------|
| `README.md` | Alpha `0.1.0-alpha.1`, warnings present |
| `CHANGELOG.md` | Alpha status |
| `SECURITY.md` | Alpha limitations |
| Internal phase docs | Still reference legacy “PRD section” labels — **follow-up recommended** |

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## Verification grep (working tree)

| Pattern | Status |
|---------|--------|
| `Cursor` (brand) | Clean — CSS/API fields only |
| `PRD/` tracked | Not tracked; `.gitignore` entry only (+ doc path references) |
| `placeholder` (production) | Dev VM artifacts + UI i18n keys only; not bundled in Tauri release |

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## Commits on this branch

(See `git log main..HEAD` after push)

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## Incomplete / follow-up

1. **Git history rewrite (Phase 16–17)** — NOT executed; requires your explicit approval before any `force push`
2. **Branch protection** — NOT enabled (per instructions)
3. **Sanitize internal docs** that still say “PRD section” in Arabic phase notes
4. **Release signing** — configure `TAURI_SIGNING_PRIVATE_KEY` / `MINISIGN_PRIVATE_KEY` before claiming signed installers
5. **Production VM image** — replace dev placeholder with signed artifact in release pipeline
6. **Sidecar transport** — migrate to UDS/named pipes (Phase 7 future plan)

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## History rewrite plan (requires approval)

After PR merge and green CI:

1. Mirror backup: `git clone --mirror https://github.com/hbx12/aura-work.git aura-work-backup.git`
2. Orphan squash from **this branch** (not old main): `git checkout --orphan clean-main`
3. Single commit: `Initial release: Aura Work alpha`
4. Pre-push checks: no PRD tracked, no Cursor in tree, no production placeholder bundled
5. `git push origin main --force` only after your explicit consent
6. Enable branch protection after final push + green CI

**Do not proceed without your written approval.**
