diff --git a/.dockerignore b/.dockerignore
index 7d5bd4fb..7b10d2be 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -19,6 +19,7 @@ docs/
 
 # Local dev / secrets — never ship these into a build context
 *.log
+*.env
 key
 .mobee/
 data/
diff --git a/.gitignore b/.gitignore
index 00afbc81..fda2fa69 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,3 +12,7 @@
 # Editor / OS
 .DS_Store
 *.swp
+
+# Local Claude Code session state (memory dir). Scoped to projects/ so dev's
+# tracked .claude/skills/ is unaffected (a broad .claude/ would risk hiding it).
+.claude/projects/
diff --git a/Dockerfile.claude-shim b/Dockerfile.claude-shim
new file mode 100644
index 00000000..e2606659
--- /dev/null
+++ b/Dockerfile.claude-shim
@@ -0,0 +1,34 @@
+# syntax=docker/dockerfile:1
+#
+# Claude-seller = dev's base image + the official ACP adapter. This is the
+# "bring an agent" extension dev's docs/DOCKER.md describes, packaged as a file.
+# It EXTENDS the base (FROM $BASE_IMAGE) instead of rebuilding it — no duplicated
+# rust build. Auth: an ANTHROPIC_API_KEY supplied at runtime.
+#
+# Two-step build — use `make build` (or `make up`), which runs:
+#   docker build -f Dockerfile -t mobee-base .
+#   docker build -f Dockerfile.claude-shim --build-arg BASE_IMAGE=mobee-base -t mobee-seller-shim .
+ARG BASE_IMAGE=mobee-base
+FROM ${BASE_IMAGE}
+
+# Node + the official ACP adapter (dev's `--agent claude` preset resolves to
+# `which claude-agent-acp`). Installed as root, then drop back to the base's
+# non-root `mobee` user. curl/gnupg are for the nodesource repo (Node 20 — the
+# version proven with the adapter here; dev's doc snippet uses Debian's apt node).
+USER root
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends curl ca-certificates gnupg \
+    && curl -fsSL https://deb.nodesource.com/setup_20.x | bash - \
+    && apt-get install -y --no-install-recommends nodejs \
+    && npm install -g @agentclientprotocol/claude-agent-acp \
+    && rm -rf /var/lib/apt/lists/* \
+    && which claude-agent-acp
+
+# Fresh claude config dir so no host hooks/MCP/CLAUDE.md leak into job runs.
+ENV CLAUDE_CONFIG_DIR=/data/.claude-sandbox \
+    DISABLE_AUTOUPDATER=1 \
+    CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC=1
+
+USER mobee
+# ENTRYPOINT (tini -- mobee), CMD (sell), WORKDIR (/data), MOBEE_HOME — all
+# inherited from the base image.
diff --git a/Makefile b/Makefile
new file mode 100644
index 00000000..c050823a
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,29 @@
+# Build + run the claude-seller (dev's base image + the ACP adapter).
+# For testers of the mobee seller — not a merge target.
+#
+#   make up      # build (two-step) + run the seller
+#   make logs    # follow the daemon
+#   make down     # stop
+#
+# Needs docker/seller.env with ANTHROPIC_API_KEY (see docker/seller.env.example).
+
+IMAGE   ?= mobee-seller-shim
+BASE    ?= mobee-base
+COMPOSE  = docker compose -f docker-compose.claude-shim.yml
+
+.PHONY: build up down logs base
+
+base:                ## build dev's base image (mobee binary; no agent)
+	docker build -f Dockerfile -t $(BASE) .
+
+build: base          ## base image, then the claude-agent-acp seller on top
+	docker build -f Dockerfile.claude-shim --build-arg BASE_IMAGE=$(BASE) -t $(IMAGE) .
+
+up: build            ## build + run (uses the pre-built image; no compose build)
+	$(COMPOSE) up -d --no-build
+
+logs:                ## follow the seller daemon
+	$(COMPOSE) logs -f seller
+
+down:                ## stop (keeps the volume / identity)
+	$(COMPOSE) down
diff --git a/docker-compose.claude-shim.yml b/docker-compose.claude-shim.yml
new file mode 100644
index 00000000..782b8a16
--- /dev/null
+++ b/docker-compose.claude-shim.yml
@@ -0,0 +1,40 @@
+# Integrated local run: dev-style packaging (unhardened) + the official
+# claude-agent-acp adapter (`--agent claude`). Run with:
+#
+#   make up      # two-step build (base -> adapter seller) + run
+#
+# The image EXTENDS dev's base (Dockerfile.claude-shim is FROM mobee-base), so
+# the base must be built first — `make` handles that. Auth: put an
+# ANTHROPIC_API_KEY in docker/seller.env (see seller.env.example). UNHARDENED by
+# design (non-root + tini + volume). Delivery uses dev's default relay-git
+# transport (no --git-remote / .netrc needed). The hardened sandbox variant
+# (egress allowlist, cap-drop, read-only rootfs) is in git history.
+name: mobee-seller-shim
+services:
+  seller:
+    build:
+      context: .
+      dockerfile: Dockerfile.claude-shim
+      args:
+        # base image built by `make base`; Dockerfile.claude-shim is FROM this.
+        BASE_IMAGE: mobee-base
+    image: mobee-seller-shim
+    restart: unless-stopped
+    command:
+      - sell
+      - --non-interactive
+      - --agent
+      - claude
+      - --rate-sats
+      - "1"
+      # open for ANY work: claim untargeted/open-pool offers, not just #p==self.
+      - --claim-open-pool
+    volumes:
+      # persistent state: key (0600), wallet, config, journal.
+      - seller-data:/data
+    env_file:
+      # ANTHROPIC_API_KEY (see seller.env.example). Gitignored.
+      - docker/seller.env
+
+volumes:
+  seller-data:
diff --git a/docker/.gitignore b/docker/.gitignore
new file mode 100644
index 00000000..cd77ed24
--- /dev/null
+++ b/docker/.gitignore
@@ -0,0 +1,3 @@
+# Local seller config / secrets (auth credential + git remote) — never commit.
+# (*.env.example templates aren't matched by *.env, so they stay committable.)
+*.env
diff --git a/docker/README.md b/docker/README.md
new file mode 100644
index 00000000..37f637c4
--- /dev/null
+++ b/docker/README.md
@@ -0,0 +1,60 @@
+# mobee seller — integrated Docker runtime (dev-style + claude-agent-acp)
+
+Runs the `mobee sell` daemon in a container using dev's simple packaging
+(non-root + tini + a `/data` volume — **unhardened**), with the official ACP
+adapter [`@agentclientprotocol/claude-agent-acp`](https://github.com/agentclientprotocol/claude-agent-acp)
+as the agent (`--agent claude`). Auth is an **`ANTHROPIC_API_KEY`**. Delivery
+uses dev's default **relay-git** transport (no GitHub remote needed).
+**Testnut only. No real funds.**
+
+> This branch ships the lean integrated setup. The earlier hardened sandbox
+> variant (egress allowlist, cap-drop, read-only rootfs) lives in git history.
+
+## Files
+
+| File | Role |
+|---|---|
+| [`../Dockerfile`](../Dockerfile) | dev's base image (mobee binary; **no agent**) — built first as `mobee-base` |
+| [`../Dockerfile.claude-shim`](../Dockerfile.claude-shim) | `FROM mobee-base` + Node + `claude-agent-acp` (the agent-bundled seller) |
+| [`../Makefile`](../Makefile) | `make up` = two-step build (base → seller) + run |
+| [`../docker-compose.claude-shim.yml`](../docker-compose.claude-shim.yml) | the seller service (unhardened; `--agent claude`, open-pool) |
+| [`seller.env.example`](seller.env.example) | copy to `seller.env` (gitignored): `ANTHROPIC_API_KEY` |
+
+## Setup
+
+```bash
+cp docker/seller.env.example docker/seller.env && chmod 600 docker/seller.env
+# edit docker/seller.env — set ANTHROPIC_API_KEY (https://console.anthropic.com)
+make up          # builds mobee-base, then the adapter seller on top, then runs it
+make logs        # follow the daemon
+```
+
+`make up` does the two-step build: dev's base `Dockerfile` → `mobee-base`, then
+`Dockerfile.claude-shim` (`FROM mobee-base` + the ACP adapter) → `mobee-seller-shim`.
+(Requires GNU `make` + Docker. Without `make`: run the two `docker build`
+commands from the top of `Dockerfile.claude-shim`, then `docker compose -f
+docker-compose.claude-shim.yml up -d --no-build`.)
+
+Expect `seller daemon online pubkey=… nip42=authenticated`. Record the pubkey.
+The daemon claims open-pool offers (`--claim-open-pool`) and executes them
+through the adapter, delivering via relay-git.
+
+## ⚠️ Buyer and seller must run the same version
+
+The marketplace event kinds changed (offer `3401`, claim `3402`, result `3403`;
+older builds used `5109`/`7000`/`6109`). A version skew means the seller never
+receives the offer and never claims — no error, just silence. If a valid offer
+isn't claimed, confirm **both** sides are on current `dev`.
+
+## Notes
+
+- **Auth:** `ANTHROPIC_API_KEY` (Commercial Terms — sanctioned for serving jobs,
+  no automation limits). The adapter is built on the Claude Agent SDK, which
+  authenticates via the API key.
+- **Unhardened:** open outbound, no cap-drop / read-only rootfs. The credential
+  lives in the container — keep this for trusted/testing use.
+- **Identity + wallet** live in the `seller-data` volume (`/data`): key (`0600`),
+  wallet, journal. Back it up before `docker volume rm`; never run two daemons
+  on the same key.
+- **Per-job cost:** current dev runs a post-job retro (an extra agent turn over
+  the seller's own memory), so each job spends **two** agent runs (job + retro).
diff --git a/docker/seller.env.example b/docker/seller.env.example
new file mode 100644
index 00000000..6d810a31
--- /dev/null
+++ b/docker/seller.env.example
@@ -0,0 +1,7 @@
+# Copy to docker/seller.env (gitignored) and fill in. Never commit this file;
+# never pass the value on the command line.
+
+# Anthropic API key — the seller's auth. Sanctioned for serving jobs under the
+# Commercial Terms, with no automation limits. Create one at
+# https://console.anthropic.com.
+ANTHROPIC_API_KEY=sk-ant-api03-REPLACE-ME