diff --git a/docs/runbooks/codex-in-gateway-pod.md b/docs/runbooks/codex-in-gateway-pod.md
new file mode 100644
index 00000000..2e4c8777
--- /dev/null
+++ b/docs/runbooks/codex-in-gateway-pod.md
@@ -0,0 +1,181 @@
+# Running codex (local-CLI wrapper) inside the gateway pod
+
+ADR-005 Stage 2. The `clawdbot-gateway` pod now ships `codex` and `commonly`
+binaries via an init container (`codex-tools-installer`) and a shared
+`/tools` volume on `PATH`. This runbook covers the operator steps to wire
+a `codex` agent into a pod and start the run loop manually.
+
+This is the bridge that lets dev agents (theo / nova / pixel / ops) replace
+their `acpx_run` calls with `@codex` mentions — codex itself runs as a
+first-class Commonly agent in a pod the dev agent shares.
+
+## Prerequisites
+
+- Helm release `commonly-dev` includes the chart at or after the commit that
+  added the `codex-tools-installer` init container (`feat/adr-005-stage-2-codex-image`).
+- Codex `auth.json` is already provisioned by the existing `clawdbot-auth-seed`
+  init container (`/state/.codex/auth.json` → copied to `~/.codex/auth.json`
+  via the gateway container's `lifecycle.postStart`). No new secret needed —
+  the wrapper reuses the same chatgpt account #1 the existing acpx_run path
+  uses.
+- Backend image on dev includes `POST /api/agents/runtime/room` and the
+  agent-room 1:1 enforcement (PR #232 + #235).
+
+## One-time bootstrap
+
+Pick a dev pod or Agent DM where the codex agent should be installed (one
+per developer is fine; the wrapper serves multiple sessions per ADR-005's
+session-per-pod model).
+
+### 1. Open a shell in the gateway pod
+
+```bash
+GATEWAY_POD=$(kubectl get pod -n commonly-dev -l app=clawdbot-gateway -o jsonpath='{.items[0].metadata.name}')
+kubectl exec -n commonly-dev -it "$GATEWAY_POD" -- bash
+```
+
+### 2. Verify the tools landed
+
+```bash
+codex --version       # codex-cli 0.125.0 (or whatever is pinned in values)
+commonly --version    # 0.1.0
+```
+
+If either fails, the init container's soft-fail path may have triggered
+(npm registry unreachable, github clone failed, etc.) — the gateway is
+still up but `/tools` is empty. Check:
+
+```bash
+kubectl logs -n commonly-dev "$GATEWAY_POD" -c codex-tools-installer
+```
+
+Look for `[codex-tools-installer] install failed` lines. Re-running the
+init container = restart the pod (`kubectl delete pod "$GATEWAY_POD"`).
+
+### 3. Authenticate the commonly CLI to api-dev
+
+The wrapper needs a USER token (not the agent runtime token) to call
+`commonly agent attach`. Get one from your dev account and save it.
+
+```bash
+commonly login --instance https://api-dev.commonly.me --key dev
+# enter email + password at the prompts
+```
+
+(Inside a non-TTY exec, you'd pipe email/password via stdin — but the
+operator step is interactive.)
+
+### 4. Attach the codex agent to a pod
+
+Pick a target pod ID (e.g., a dev-team chat pod or an Agent DM created
+via the Agent Hub "Talk to" button). Then:
+
+```bash
+commonly agent attach codex \
+  --pod <podId> \
+  --name codex \
+  --instance dev
+```
+
+This:
+- Registers the codex agent in the kernel (`AgentInstallation` row)
+- Mints a runtime token at `~/.commonly/tokens/codex.json`
+- Reuses the codex CLI's existing `auth.json` for actual model access
+
+### 5. Start the run loop
+
+```bash
+nohup commonly agent run codex > /tmp/commonly-codex-run.log 2>&1 &
+```
+
+Or in a tmux session if you want to watch it:
+
+```bash
+tmux new -s codex
+commonly agent run codex
+# Ctrl+b d to detach
+```
+
+The run loop polls the instance you passed to `commonly login` (here:
+api-dev's URL — your own self-hosted instance is whatever URL you logged
+in to), spawns codex on each `chat.mention` / `dm.message`, and posts the
+response back to the originating pod. Per ADR-005 §Spawning semantics,
+one process serializes spawns — collisions queue, no parallelism.
+
+**Don't run two `commonly agent run codex` processes for the same agent
+name.** ADR-005 invariant #4 explicitly calls this out as unsupported in
+v1: each `run` would poll, ack, and post independently, producing
+duplicate replies. Higher throughput needs a different agent identity
+(separate `commonly agent attach codex-2 ...`) — file as a follow-up if
+the single-process throughput becomes a real bottleneck.
+
+### 6. Smoke
+
+In the target pod, mention `@codex` from any human or agent member:
+
+```
+@codex please reply with the single word: pong
+```
+
+Within a minute, codex should post `pong` back. Tail the log to confirm:
+
+```bash
+tail -f /tmp/commonly-codex-run.log
+```
+
+Expected:
+
+```
+[codex] polling https://api-dev.commonly.me for events (ctrl+c to stop)
+[codex] [chat.mention] spawning codex
+[codex] [chat.mention] posted 4 bytes
+```
+
+## After bootstrap — letting dev agents use it
+
+Once `@codex` is live in a dev pod, dev agents (theo / nova / pixel / ops)
+can mention it from their HEARTBEAT.md template instead of calling
+`acpx_run`. Cutover one agent at a time:
+
+1. Edit the agent's HEARTBEAT.md in `backend/services/registry.js` (the
+   permanent source of truth — PVC edits get overwritten on
+   `reprovision-all`).
+2. Replace any block that does `acpx_run({ agentId: "codex", ... })` with
+   `commonly_post_message({ podId, content: "@codex <prompt>" })` plus the
+   agent's pattern for reading the response on the next heartbeat tick.
+3. Run `reprovision-all` so the new HEARTBEAT lands.
+4. Watch the agent's next few heartbeats. Compare end-to-end behavior to
+   the prior `acpx_run` flow.
+
+If the parity holds across one heartbeat cycle, roll out to the next agent.
+If it doesn't, revert the HEARTBEAT change (one-line revert) and investigate
+before broadening.
+
+## Operational caveats
+
+- **Shared quota.** All `@codex` invocations use the existing chatgpt
+  account #1's quota — same one the LiteLLM rotator and acpx_run already
+  consume. Hitting the weekly cap will manifest as `turn.failed` JSONL
+  events with "usage limit" messages. The codex adapter (`cli/src/lib/adapters/codex.js`)
+  surfaces these as the agent's reply, so users see a clear error. To
+  raise the ceiling: add a dedicated codex account for the wrapper (a
+  follow-up PR — separate auth.json mounted at a non-shared path, run
+  loop with `CODEX_HOME` env var pointing at it).
+- **Pod restart penalty.** The init container reinstalls `@openai/codex` +
+  `@commonly/cli` from npm on every pod start (~30s). emptyDir is
+  intentional — simpler than caching; revisit if restart latency hurts.
+- **Run loop survives pod restarts only as a manual step.** This runbook
+  describes a non-daemonized start. A future iteration will move the run
+  loop into the pod's lifecycle so it auto-starts. Until then, after
+  `kubectl delete pod` or `helm upgrade`, re-run step 5.
+- **Logs go to the pod's filesystem.** `/tmp/commonly-codex-run.log` is
+  ephemeral; stream to stdout if you want it in `kubectl logs`. Or wire
+  through to a sidecar fluent-bit later.
+
+## Related
+
+- `cli/src/lib/adapters/codex.js` — the adapter (PR #231)
+- `cli/src/commands/agent.js` — `attach`, `run`, `detach` commands
+- ADR-005 §Adapter pattern — invariants the adapter holds
+- `_external/clawdbot/extensions/commonly/src/tools.ts` — the `acpx_run`
+  this is replacing (target for removal once all dev agents are cut over)
diff --git a/k8s/helm/commonly/templates/agents/clawdbot-deployment.yaml b/k8s/helm/commonly/templates/agents/clawdbot-deployment.yaml
index 76d45d11..0dc52570 100644
--- a/k8s/helm/commonly/templates/agents/clawdbot-deployment.yaml
+++ b/k8s/helm/commonly/templates/agents/clawdbot-deployment.yaml
@@ -464,6 +464,61 @@ spec:
           readOnly: true
         - name: clawdbot-state
           mountPath: /state
+      # ADR-005 Stage 2: install codex CLI + @commonly/cli into a shared
+      # volume the gateway container mounts. Avoids modifying the
+      # _external/clawdbot Dockerfile (a submodule on the openclaw fork) —
+      # the install lives in helm so it ships with the deploy.
+      #
+      # `node:22-bookworm-slim` matches the runtime container's Node major
+      # so any libc-linked binaries are compatible. `git` isn't in slim by
+      # default; we apt-install it because @commonly/cli isn't published
+      # to npm yet (ADR-005 Phase 4) and must be installed from source.
+      #
+      # Soft-fail: if the npm registry or github is unreachable at pod-
+      # restart time, the gateway should still start — the run loop is an
+      # operator-started manual step (Stage 2), and `acpx_run` continues
+      # to work as a fallback. A hard-failing init container would strand
+      # the entire gateway pod for an issue with one optional capability.
+      - name: codex-tools-installer
+        image: node:22-bookworm-slim
+        command:
+        - /bin/sh
+        - -c
+        - |
+          install_codex_tools() {
+            set -e
+            export NPM_CONFIG_PREFIX=/tools
+            apt-get update >/dev/null 2>&1
+            DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
+              git ca-certificates >/dev/null 2>&1
+            # Pin codex by version (npm published) — see values.yaml.
+            npm install --global --no-audit --no-fund \
+              "@openai/codex@{{ .Values.agents.clawdbot.codexTools.codexVersion | default "0.125.0" }}"
+            # @commonly/cli — install from source at the pinned ref. The
+            # cli/ subdirectory is a self-contained npm package with one
+            # runtime dep (commander); ~200KB of source.
+            git clone --depth 1 --branch "{{ .Values.agents.clawdbot.codexTools.commonlyCliRef | default "main" }}" \
+              https://github.com/Team-Commonly/commonly.git /tmp/commonly-src
+            mkdir -p /tools/lib
+            cp -r /tmp/commonly-src/cli /tools/lib/commonly-cli
+            cd /tools/lib/commonly-cli
+            npm install --omit=dev --no-audit --no-fund
+            ln -sf /tools/lib/commonly-cli/src/index.js /tools/bin/commonly
+            chmod +x /tools/lib/commonly-cli/src/index.js
+            # Verify (best-effort; failures here don't block since the
+            # outer || already swallowed earlier failures we care about).
+            /tools/bin/codex --version || true
+            /tools/bin/commonly --version || true
+            ls -la /tools/bin/ || true
+          }
+          install_codex_tools || {
+            echo "[codex-tools-installer] install failed — gateway will start without /tools binaries"
+            echo "[codex-tools-installer] operator: 'commonly agent run codex' is unavailable until next pod restart"
+            exit 0
+          }
+        volumeMounts:
+        - name: codex-tools
+          mountPath: /tools
       containers:
       - name: clawdbot-gateway
         image: "{{ .Values.agents.clawdbot.image.repository }}:{{ .Values.agents.clawdbot.image.tag }}"
@@ -485,6 +540,12 @@ spec:
               - -c
               - mkdir -p /home/node/.codex && cp /state/.codex/auth.json /home/node/.codex/auth.json 2>/dev/null || true
         env:
+        # ADR-005 Stage 2: prepend the codex-tools volume to PATH so
+        # `codex` and `commonly` are on PATH for operator `kubectl exec`
+        # invocations and the run-loop process. Order matters — these
+        # binaries shadow any same-named ones in the openclaw image.
+        - name: PATH
+          value: "/tools/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
         - name: CLAWDBOT_GATEWAY_PORT
           value: {{ .Values.agents.clawdbot.config.gatewayPort | default 18789 | quote }}
         - name: CLAWDBOT_GATEWAY_BIND
@@ -594,6 +655,12 @@ spec:
           mountPath: /state
         - name: clawdbot-workspace
           mountPath: /workspace
+        # ADR-005 Stage 2 — codex + commonly CLIs installed by the
+        # codex-tools-installer init container. Mounted read-only here
+        # since nothing in the main container needs to write to it.
+        - name: codex-tools
+          mountPath: /tools
+          readOnly: true
       volumes:
       - name: clawdbot-config
         configMap:
@@ -604,6 +671,11 @@ spec:
       - name: clawdbot-workspace
         persistentVolumeClaim:
           claimName: clawdbot-workspace-pvc
+      # emptyDir is fine — re-populated on every pod start by the init
+      # container. Adds ~30s to startup but avoids a PVC + invalidation
+      # logic. Revisit if pod-restart latency becomes a real concern.
+      - name: codex-tools
+        emptyDir: {}
       {{- with .Values.agents.clawdbot.nodeSelector }}
       nodeSelector:
         {{- toYaml . | nindent 8 }}
diff --git a/k8s/helm/commonly/values.yaml b/k8s/helm/commonly/values.yaml
index 1ec12f8c..e323797f 100644
--- a/k8s/helm/commonly/values.yaml
+++ b/k8s/helm/commonly/values.yaml
@@ -188,6 +188,14 @@ agents:
       repository: gcr.io/YOUR_GCP_PROJECT_ID/clawdbot-gateway
       tag: latest
       pullPolicy: IfNotPresent
+    # ADR-005 Stage 2 — codex + @commonly/cli installed by an init
+    # container into a shared /tools volume. codexVersion pins the
+    # @openai/codex npm package; commonlyCliRef pins the git ref this
+    # repo's cli/ subdirectory is installed from. @commonly/cli is not
+    # yet on npm (ADR-005 Phase 4), so we install from source.
+    codexTools:
+      codexVersion: "0.125.0"
+      commonlyCliRef: "main"
     config:
       gatewayPort: 18789
       bridgePort: 18790