Split into three files linked from CLAUDE.md's v2 docs index: - v2-db.md — overview: three-DB model, cross-mount rules, central-vs-session decision, design patterns, readers/writers map. - v2-db-central.md — every table in data/v2.db plus migration history. - v2-db-session.md — per-session inbound.db / outbound.db schemas, session folder layout, seq parity invariant, lazy schema evolution. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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NanoClaw
Personal Claude assistant. See README.md for philosophy and setup. Architecture lives in docs/v2-*.md.
Quick Context (v2)
v2 is the current branch and codebase. v1 still exists under src/v1/ and container/agent-runner/src/v1/ for reference but is no longer the runtime. If a file mentions v1 in its comments, it is probably stale.
The host is a single Node process that orchestrates per-session agent containers. Platform messages land via channel adapters, route through an entity model (users → messaging groups → agent groups → sessions), get written into the session's inbound DB, and wake a container. The agent-runner inside the container polls the DB, calls Claude, and writes back to the outbound DB. The host polls the outbound DB and delivers through the same adapter.
Everything is a message. There is no IPC, no file watcher, no stdin piping between host and container. The two session DBs are the sole IO surface.
Entity Model
users (id "<channel>:<handle>", kind, display_name)
user_roles (user_id, role, agent_group_id) — owner | admin (global or scoped)
agent_group_members (user_id, agent_group_id) — unprivileged access gate
user_dms (user_id, channel_type, messaging_group_id) — cold-DM cache
agent_groups (workspace, memory, CLAUDE.md, personality, container config)
↕ many-to-many via messaging_group_agents (session_mode, trigger_rules, priority)
messaging_groups (one chat/channel on one platform; unknown_sender_policy)
sessions (agent_group_id + messaging_group_id + thread_id → per-session container)
Privilege is user-level (owner/admin), not agent-group-level. See docs/v2-isolation-model.md for the three isolation levels (agent-shared, shared, separate agents).
Two-DB Session Split
Each session has two SQLite files under data/v2-sessions/<session_id>/:
inbound.db— host writes, container reads.messages_in, routing, destinations, pending_questions, processing_ack.outbound.db— container writes, host reads.messages_out, session_state.
Exactly one writer per file — no cross-mount lock contention. Heartbeat is a file touch at /workspace/.heartbeat, not a DB update. Host uses even seq numbers, container uses odd.
Central DB
data/v2.db holds everything that isn't per-session: users, user_roles, agent_groups, messaging_groups, wiring, pending_approvals, user_dms, chat_sdk_* (for the Chat SDK bridge), schema_version. Migrations live at src/db/migrations/.
Key Files
| File | Purpose |
|---|---|
src/index.ts |
Entry point: init DB, migrations, channel adapters, delivery polls, sweep, shutdown |
src/router.ts |
Inbound routing: messaging group → agent group → session → inbound.db → wake |
src/delivery.ts |
Polls outbound.db, delivers via adapter, handles system actions (schedule, approvals, etc.) |
src/host-sweep.ts |
60s sweep: processing_ack sync, stale detection, due-message wake, recurrence |
src/session-manager.ts |
Resolves sessions; opens inbound.db / outbound.db; manages heartbeat path |
src/container-runner.ts |
Spawns per-agent-group Docker containers with session DB + outbox mounts, OneCLI ensureAgent |
src/container-runtime.ts |
Runtime selection (Docker vs Apple containers), orphan cleanup |
src/access.ts |
pickApprover, pickApprovalDelivery, admin resolution for NANOCLAW_ADMIN_USER_IDS |
src/onecli-approvals.ts |
OneCLI credentialed-action approval bridge |
src/user-dm.ts |
Cold-DM resolution + user_dms cache |
src/group-init.ts |
Per-agent-group filesystem scaffold (CLAUDE.md, skills, agent-runner-src overlay) |
src/db/ |
DB layer — agent_groups, messaging_groups, sessions, user_roles, user_dms, pending_*, migrations |
src/channels/ |
Channel adapters + Chat SDK bridge |
container/agent-runner/src/ |
Agent-runner: poll loop, formatter, provider abstraction, MCP tools, destinations |
container/skills/ |
Container skills mounted into every agent session |
groups/<folder>/ |
Per-agent-group filesystem (CLAUDE.md, skills, per-group agent-runner-src/ overlay) |
scripts/init-first-agent.ts |
Bootstrap the first DM-wired agent (used by /init-first-agent skill) |
Self-Modification
One tier of agent self-modification today:
install_packages/add_mcp_server/request_rebuild— changes to the per-agent-group container config only (apt/npm deps, wire an existing MCP server). Admin approval, rebuild, container restart.container/agent-runner/src/mcp-tools/self-mod.ts.
A second tier (direct source-level self-edits via a draft/activate flow) is planned but not yet implemented.
Secrets / Credentials / OneCLI
API keys, OAuth tokens, and auth credentials are managed by the OneCLI gateway. Secrets are injected into per-agent containers at request time — none are passed in env vars or through chat context. src/onecli-approvals.ts, ensureAgent() in container-runner.ts. Run onecli --help.
Skills
Four types of skills. See CONTRIBUTING.md for the full taxonomy.
- Feature skills —
skill/*branches merged viascripts/apply-skill.ts(e.g./add-discord-v2,/add-slack-v2,/add-whatsapp-v2) - Utility skills — ship code files alongside
SKILL.md(e.g./claw) - Operational skills — instruction-only workflows (
/setup,/debug,/customize,/init-first-agent,/manage-channels,/init-onecli,/update-nanoclaw) - Container skills — loaded inside agent containers at runtime (
container/skills/:welcome,self-customize,agent-browser,slack-formatting)
| Skill | When to Use |
|---|---|
/setup |
First-time install, auth, service config |
/init-first-agent |
Bootstrap the first DM-wired agent (channel pick → identity → wire → welcome DM) |
/manage-channels |
Wire channels to agent groups with isolation level decisions |
/customize |
Adding channels, integrations, behavior changes |
/debug |
Container issues, logs, troubleshooting |
/update-nanoclaw |
Bring upstream updates into a customized install |
/init-onecli |
Install OneCLI Agent Vault and migrate .env credentials |
Contributing
Before creating a PR, adding a skill, or preparing any contribution, you MUST read CONTRIBUTING.md. It covers accepted change types, the four skill types and their guidelines, SKILL.md format rules, and the pre-submission checklist.
Development
Run commands directly — don't tell the user to run them.
pnpm run dev # Host with hot reload
pnpm run build # Compile host TypeScript (src/)
./container/build.sh # Rebuild agent container image (nanoclaw-agent:latest)
pnpm test # Host tests
Container typecheck is a separate tsconfig — if you edit container/agent-runner/src/, run pnpm exec tsc -p container/agent-runner/tsconfig.json --noEmit to check it.
Service management:
# macOS (launchd)
launchctl load ~/Library/LaunchAgents/com.nanoclaw.plist
launchctl unload ~/Library/LaunchAgents/com.nanoclaw.plist
launchctl kickstart -k gui/$(id -u)/com.nanoclaw # restart
# Linux (systemd)
systemctl --user start|stop|restart nanoclaw
Host logs: logs/nanoclaw.log (normal) and logs/nanoclaw.error.log (errors only — some delivery/approval failures only show up here).
Supply Chain Security (pnpm)
This project uses pnpm with minimumReleaseAge: 4320 (3 days) in pnpm-workspace.yaml. New package versions must exist on the npm registry for 3 days before pnpm will resolve them.
Rules — do not bypass without explicit human approval:
minimumReleaseAgeExclude: Never add entries without human sign-off. If a package must bypass the release age gate, the human must approve and the entry must pin the exact version being excluded (e.g.package@1.2.3), never a range.onlyBuiltDependencies: Never add packages to this list without human approval — build scripts execute arbitrary code during install.pnpm install --frozen-lockfileshould be used in CI, automation, and container builds. Never run barepnpm installin those contexts.
v2 Docs Index
| Doc | Purpose |
|---|---|
| docs/v2-architecture-draft.md | Full architecture writeup |
| docs/v2-api-details.md | Host API + DB schema details |
| docs/v2-db.md | DB architecture overview: three-DB model, cross-mount rules, readers/writers map |
| docs/v2-db-central.md | Central DB (data/v2.db) — every table + migration system |
| docs/v2-db-session.md | Per-session inbound.db + outbound.db schemas + seq parity |
| docs/v2-agent-runner-details.md | Agent-runner internals + MCP tool interface |
| docs/v2-isolation-model.md | Three-level channel isolation model |
| docs/v2-setup-wiring.md | What's wired, what's open in the setup flow |
| docs/v2-checklist.md | Rolling status checklist across all subsystems |
| docs/v2-architecture-diagram.md | Diagram version of the architecture |
Container Build Cache
The container buildkit caches the build context aggressively. --no-cache alone does NOT invalidate COPY steps — the builder's volume retains stale files. To force a truly clean rebuild, prune the builder then re-run ./container/build.sh.