Two separate sandbox blockers surfaced when the user tried
`pnpm work decompose --execute`:
1. **Container died on exec** — our Dockerfile had:
- WORKDIR /workspace + CMD ["bash"]
- No `agent` user (sandcastle exec's as UID:GID it built with)
- node:22-bookworm-slim (missing some build deps the install
script wants)
Sandcastle expects:
- A non-root `agent` user with home at /home/agent (sandcastle
does `git config --global --add safe.directory /home/agent/workspace`,
which fails if the user doesn't exist or the container exited)
- ENTRYPOINT ["sleep", "infinity"] so the container survives
the gap between sandcastle creating it and exec'ing in
Replaced .sandcastle/Dockerfile with the shape `sandcastle init`
would generate (verified against
node_modules/@ai-hero/sandcastle/dist/InitService.js):
- node:22-bookworm (full, not slim) for build tooling
- apt-get installs git + curl + jq
- corepack-pinned pnpm@9
- ARG AGENT_UID=1000 + AGENT_GID=1000; sandcastle's
build-image passes the host's UID/GID by default
- `groupmod -o -g $AGENT_GID node` + `usermod -o ... node` —
the `-o` (non-unique) flag is required because macOS hosts
have UID:501 GID:20, and GID 20 collides with Debian's
`dialout` group in the base image (without -o, groupmod
fails with "GID '20' already exists")
- USER ${AGENT_UID}:${AGENT_GID}, then install Claude Code CLI
via the official installer
- ENV PATH includes /home/agent/.local/bin
- WORKDIR /home/agent (sandcastle overrides per-run anyway)
- ENTRYPOINT ["sleep", "infinity"] keeps the container alive
2. **"Not logged in · Please run /login"** inside the container —
Claude Code on macOS stores credentials in the Keychain, NOT in
~/.claude/.credentials.json. Sandcastle's bind-mount of ~/.claude
finds nothing usable. Documented the workaround:
- README.md "Sandcastle setup (one-time)" — macOS-specific
block with the `security find-generic-password ... > ~/.claude/.credentials.json`
one-liner + chmod 600 + the security trade-off (plaintext
file vs keychain isolation)
- docs/guides/runbook.md "Using Sandcastle → Prerequisites" —
step 3 (Authentication) gets a "macOS quirk" subsection with
the same extraction one-liner + the API-key fallback as the
alternative path
- scripts/work/{dispatch,decompose}.mjs — when the sandcastle
error matches /Not logged in|Please run \/login/ AND we're on
darwin, the dispatcher prints the keychain-extraction
commands + the API-key fallback inline above the generic
"See runbook" line, so future agents discover the fix at the
failure site
The image rebuilds clean (`pnpm exec sandcastle docker
build-image`) at ~1.95GB and the container survives sandcastle's
exec — confirmed by reaching the "Not logged in" stage (which is
the next-layer issue, not the Dockerfile issue).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
5.5 KiB
Clean Architecture Monorepo Template
Turborepo + pnpm monorepo organised by vertical features, with an agent-first workflow and five conformance gates.
This template is built for agent-driven development. Sandcastle is the orchestration substrate; pnpm work dispatch is the entry point. See ADR-019 for the decision rationale and docs/guides/runbook.md for end-to-end usage.
Start here
Read docs/guides/runbook.md — day-1 onboarding (prerequisites, env vars, daily commands, troubleshooting, Using Sandcastle for agent dispatch).
Quick reference
pnpm install # Install + auto-wire husky pre-commit hooks
pnpm dev # All dev servers (web-next:3000, cms:3001, web-tanstack:3002, storybook:6006)
pnpm test # All tests
pnpm typecheck # TypeScript across all packages
pnpm lint # ESLint (incl. 8 conformance/* rules)
pnpm conformance # Cross-feature event closure
pnpm fallow # Whole-codebase: dead exports, dupes, complexity
pnpm turbo boundaries # Workspace dependency graph
pnpm work status # docs/work/ epic + story state
docker compose up -d # Start PostgreSQL
Sandcastle setup (one-time)
Required only if you'll use pnpm work dispatch --execute or pnpm work decompose <id> --execute (agent dispatch). The dispatch loop runs the implementer / reviewer / decomposer agents inside an isolated Docker sandbox; the image is built once locally.
# 1. Ensure Docker is running
docker info >/dev/null
# 2. Build the sandcastle image (reads .sandcastle/Dockerfile)
pnpm exec sandcastle docker build-image
# Tags as: sandcastle:template-vertical (derived from the root package.json name)
# 3. Pick ONE auth path:
# (a) Recommended — Claude Pro/Max subscription:
claude login # one-time; ~/.claude/ becomes the auth source
# (b) Fallback — API key:
export ANTHROPIC_API_KEY=sk-ant-...
macOS users: subscription auth needs an extra step. Claude Code stores credentials in the macOS Keychain by default, so the host's ~/.claude/ directory has no .credentials.json for the sandbox to read. Two workarounds:
# (preferred for macOS subscription users) extract keychain -> file once:
security find-generic-password -s "Claude Code-credentials" -a "$USER" -w \
> ~/.claude/.credentials.json
chmod 600 ~/.claude/.credentials.json
# Trade-off: credentials now live as a plaintext file at the path; refresh
# when the token expires (re-run the same one-liner). The file is in your
# home directory — chmod 600 + your home permissions are the protection.
# OR fall back to API key — no host changes needed:
export ANTHROPIC_API_KEY=sk-ant-...
Linux + WSL users with claude login write ~/.claude/.credentials.json directly; nothing extra needed.
After the image exists, dispatch flows work without further setup:
pnpm work dispatch # print plan (safe anywhere)
pnpm work dispatch --execute # actually dispatch via sandcastle
pnpm work decompose <prd-id> # print decompose plan
pnpm work decompose <prd-id> --execute # decompose an approved PRD
To rebuild the image after changing .sandcastle/Dockerfile:
pnpm exec sandcastle docker remove-image
pnpm exec sandcastle docker build-image
See docs/guides/runbook.md → Using Sandcastle for the full dispatch lifecycle, auth modes, and troubleshooting.
Documentation map
docs/guides/runbook.md— start hereCLAUDE.md— full conventions referenceAGENTS.md— package map + boundary rulesdocs/guides/conformance-quickref.md— manifest + 5-gate daily referencedocs/architecture/agent-first-workflow-and-conformance.md— full designdocs/architecture/feature-conformance-explainer.html— interactive explainer
Scaffolding
pnpm turbo gen feature <name> # Scaffold a feature (manifest + contracts + tests)
pnpm turbo gen event # Event contract or handler (requires gen core-package events)
pnpm turbo gen job # Background job
pnpm turbo gen realtime # Realtime channel (requires gen core-package realtime)
pnpm turbo gen core-package <name> # Optional core: events / realtime / trpc / ui / audit
pnpm turbo gen core-ui-component <name> # Atomic-design component
Generator-first is non-negotiable — hand-rolled feature/event/job/realtime/component code is rejected by reviewer agents and may fail the CI scaffold-drift check.
Optional packages
Five core packages scaffold on demand:
pnpm turbo gen core-package realtime # Socket.IO realtime layer (ADR-016)
pnpm turbo gen core-package events # Cross-feature events + Payload jobs (ADR-015)
pnpm turbo gen core-package trpc # tRPC server setup
pnpm turbo gen core-package ui # Design system
pnpm turbo gen core-package audit # DPA-compliant audit logging (ADR-018)
See docs/architecture/template-tiers.md for the full tier list.