Use mempalace-mcp entry point directly, drop redundant wrapper

The mempalace Python package ships a 'mempalace-mcp' console entry
point; 'uv tool install' places it on PATH as a shim whose shebang
points at the isolated venv's Python. Our hand-rolled wrapper at
/usr/local/bin/mempalace-mcp-server was duplicating what uv installs
for free — one less file to maintain.

Fixes the MCP error users saw after the v1.14.28b → v1.14.29 upgrade
path: custom opencode.json files typically had the pre-v1.14.29
command ['python3', '-m', 'mempalace.mcp_server'] which worked with
the old pip install but fails silently after the uv-tool migration
because system python3 cannot import from the venv. Opencode surfaced
this as 'MCP error -32000: connection closed'.

- generate-config.py now emits ['mempalace-mcp'] and keys its detect
  on shutil.which('mempalace-mcp').
- Dockerfile drops 'COPY rootfs/usr/local/bin/' and the chmod of the
  wrapper. Build shrinks from 30 to 29 stages.
- rootfs/usr/local/bin/ removed entirely.
- Smoke test asserts /usr/local/bin/mempalace-mcp is executable and
  prints its symlink target.
- README's MemPalace section shows ['mempalace-mcp'] and explicitly
  warns against the old pattern with the observed failure mode.
- CHANGELOG adds a v1.14.29c entry.

AGENTS.md

@@ -9,8 +9,7 @@ Docker image packaging [opencode](https://opencode.ai) into a production-ready d
 - `Dockerfile` — single multi-stage build for both variants. OMOS variant is controlled by `INSTALL_OMOS=true` build arg; mempalace is controlled by `INSTALL_MEMPALACE` (default `true`). All GitHub-sourced binaries are pinned with version ARGs.
 - `entrypoint.sh` — runs as root: UID/GID adjustment, SSH permissions, volume ownership fixes (skipped via `.devbox-owner` sentinel when ownership is already correct). Then drops to developer via gosu.
 - `entrypoint-user.sh` — runs as developer: git config, opencode.json generation (delegated to `generate-config.py`), OMOS setup.
-- `rootfs/usr/local/lib/opencode-devbox/generate-config.py` — generates `~/.config/opencode/opencode.json` from env vars. Never overwrites an existing config. Auto-registers MCP servers for detected tools (mempalace via the wrapper, gitea-mcp).
-- `rootfs/usr/local/bin/mempalace-mcp-server` — wrapper that exec's the mempalace uv-tool venv's python with `-m mempalace.mcp_server`. Needed because system `python3` can't import from the isolated venv created by `uv tool install`.
+- `rootfs/usr/local/lib/opencode-devbox/generate-config.py` — generates `~/.config/opencode/opencode.json` from env vars. Never overwrites an existing config. Auto-registers MCP servers for detected tools (mempalace via the `mempalace-mcp` entry point, gitea-mcp).
 - `scripts/smoke-test.sh` — post-build image verification. Asserts binary presence, opencode startup, entrypoint correctness, config generation idempotency, and image size thresholds. Used by both CI workflows.
 - `scripts/generate-dockerhub-md.py` — generates `DOCKER_HUB.md` from `README.md` using explicit section rules. `--check` fails if the committed file is out of sync (enforced by the `validate` workflow).
 - `DOCKER_HUB.md` — **auto-generated** from README. Do not edit directly. Pushed to Docker Hub description via CI API call. Must stay under 25 kB. Short description field must be ≤100 bytes.
@@ -38,7 +37,7 @@ When bumping the opencode version, also bump `OPENCODE_VERSION` in `Dockerfile`
 - **GitHub/Gitea-sourced binaries float by default** — gosu, fzf, git-lfs, nvim, bat, eza, zoxide, uv, gitea-mcp, Go, oh-my-opencode-slim all default to `latest`. Each build-time install step reads the `/releases/latest` Location redirect (or the go.dev JSON feed for Go) and derives the concrete version. Use the same `ARCH` case-switch pattern for multi-arch support (amd64/arm64). Intentional pins: `OPENCODE_VERSION` (drives the image tag), `NODE_VERSION=22` (major pin), `DEBIAN_VERSION=trixie-slim` (OS base). Adding a new upstream tool: follow the existing floated-version pattern, don't hardcode a specific tag.
 - **Resolved versions are logged by the smoke test** — `scripts/smoke-test.sh` prints a "Resolved component versions" table as its first step. CI logs always capture what got baked into a given image even when ARGs default to `latest`.
 - **Shell scripts use `set -euo pipefail`** — both entrypoints are strict. Errors in volume chown or SSH permission operations are intentionally suppressed with `|| true`.
-- **MemPalace install path** — installed via `uv tool install` into `/opt/uv-tools/mempalace/`. The `mempalace` CLI is symlinked onto `PATH` by uv; the MCP server is reached via the `mempalace-mcp-server` wrapper. Do not use `pip install --break-system-packages` — that was the previous approach and has been removed.
+- **MemPalace install path** — installed via `uv tool install` into `/opt/uv-tools/mempalace/`. Both the `mempalace` CLI and the `mempalace-mcp` MCP server binary are shipped as entry points by the mempalace package itself and placed on PATH by uv as shims whose shebangs point at the venv's Python. No hand-rolled wrapper is needed. Do not use `pip install --break-system-packages` — that was the previous approach and has been removed. Do not use `["python3", "-m", "mempalace.mcp_server"]` in `opencode.json` — system Python can't import from the uv venv.
 - **generate-config.py idempotency** — the script MUST never overwrite an existing `opencode.json`. Users bind-mount their config directory or persist it across container recreations; accidentally clobbering that file would destroy hand-edits. The smoke test asserts this.
 - **Docker Hub description update** — uses `/v2/auth/token` endpoint (not the deprecated `/v2/users/login`). Auth uses `identifier`/`secret` fields, returns `access_token`, sent as `Bearer`. Short description must be ≤100 bytes.
 

CHANGELOG.md

@@ -6,6 +6,30 @@ Tags follow `v{opencode_version}[letter]` — bare tag for the first build on a
 
 ---
 
+## v1.14.29c — 2026-04-29
+
+**Drop redundant mempalace-mcp-server wrapper, use the entry point mempalace ships.**
+
+- **Fix:** MCP integration with mempalace was still broken for users with custom `opencode.json` files because they typically had `["python3", "-m", "mempalace.mcp_server"]` from v1.14.28b and earlier. With the uv-tool install path, system python3 can't import mempalace and the MCP server subprocess exits immediately — opencode surfaced this as `MCP error -32000: connection closed`. Users should migrate to `["mempalace-mcp"]`. The auto-generated config in new containers already emits the new form.
+- **Cleanup:** Remove the hand-rolled `/usr/local/bin/mempalace-mcp-server` wrapper. The mempalace Python package ships a `mempalace-mcp` console entry point; `uv tool install` places it on PATH as a shim whose shebang points at the isolated venv's Python. The wrapper was duplicating what uv installs for free. Removed `rootfs/usr/local/bin/` and its COPY + chmod lines from the Dockerfile.
+- **Docs:** README's MemPalace section now shows `["mempalace-mcp"]` and explicitly warns against `["python3", "-m", "mempalace.mcp_server"]` with the observed failure mode.
+- **Tests:** Smoke test asserts `/usr/local/bin/mempalace-mcp` is executable and prints its symlink target, replacing the previous wrapper-present check.
+
+## v1.14.29b — 2026-04-29
+
+**Fix OMOS `bunx` detection + CI build reliability.**
+
+- **Fix:** `entrypoint-user.sh` checked `command -v bunx` to gate the OMOS auto-install, but the OMOS image only ships the `bun` binary — upstream's bun installer never creates a `bunx` symlink and neither did our Dockerfile. The check always failed on a fresh OMOS image, so `bun x oh-my-opencode-slim@latest install` never ran and first-start OMOS setup would have printed `ENABLE_OMOS=true but bun is not installed.` even though bun was right there. Latent until now because the only exercised path had a persisted `oh-my-opencode-slim.json` from a prior install.
+  - Changed the gate to `command -v bun`.
+  - Changed both install invocations from `bunx oh-my-opencode-slim@latest install ...` to `bun x oh-my-opencode-slim@latest install ...`.
+  - Added `ln -sf bun /usr/local/bin/bunx` to the Dockerfile's OMOS block so interactive users can still type `bunx` by habit, and verified the symlink at build time (`test -L /usr/local/bin/bunx`).
+  - Smoke test now asserts the `bunx` symlink is present on the OMOS variant.
+- **Fix:** CI build robustness against transient GitHub/Gitea CDN failures. The first attempt at building v1.14.29b tripped on a single HTTP 502 from GitHub's release CDN mid-download (`zoxide-0.9.9-x86_64-unknown-linux-musl.tar.gz`), failing the entire OMOS build with no retry. Fix applied to every tool-download curl in the Dockerfile:
+  - `curl --retry 5 --retry-delay 5 --retry-all-errors` on both the `-fsSL` GET requests and the `-sI` HEAD requests used for `/releases/latest` redirect resolution. 5 attempts with 5 s back-off eats most transient CDN hiccups without failing the build.
+  - Added `[ -n "$V" ]` assertion after each version-resolution step. If the HEAD redirect ever fails to produce a tag name, the build fails fast with an empty-version message rather than trying to download `.../v//...` and producing a confusing 404.
+  - Same hardening applied to the optional Go install block (go.dev JSON feed + tarball download) and the nodesource apt-repo setup script.
+- **Security:** Added `apt-get upgrade -y` to the core-packages RUN step. Picks up any security/CVE fixes published between `debian:trixie-slim` base-image rebuilds. Paired with the existing `update` and `install` in the same layer so image history isn't bloated. Today this produced `0 upgraded` (base image is current), but it future-proofs against the next CVE drop.
+
 ## v1.14.29 — 2026-04-28
 
 **Opencode 1.14.29 + infrastructure and maintainability pass.**

DOCKER_HUB.md

@@ -421,13 +421,13 @@ Add mempalace as an MCP server in your `opencode.json` (inside `~/.config/openco
   "mcp": {
     "mempalace": {
       "type": "local",
-      "command": ["mempalace-mcp-server"]
+      "command": ["mempalace-mcp"]
     }
   }
 }
 ```
 
-> The image installs mempalace into an isolated `uv tool` venv at `/opt/uv-tools/mempalace`. The `mempalace-mcp-server` wrapper on `PATH` exec's the venv's Python with the `mempalace.mcp_server` module — you don't need to know about the venv to use it.
+> The image installs mempalace into an isolated `uv tool` venv at `/opt/uv-tools/mempalace/`. `uv tool install` places `mempalace-mcp` on `PATH` as a shim whose shebang points at the venv's Python, so MCP clients can invoke it as a normal binary without worrying about the venv. Do **not** use `["python3", "-m", "mempalace.mcp_server"]` — the system Python cannot import from the uv-managed venv and you'll get `ModuleNotFoundError` / `MCP error -32000: connection closed`.
 
 This gives opencode access to 29 MCP tools for searching memory, querying the knowledge graph, managing wings/rooms/drawers, and agent diaries.
 

Dockerfile

@@ -15,7 +15,12 @@ LABEL org.opencontainers.image.source="https://gitea.jordbo.se/joakimp/opencode-
 ENV DEBIAN_FRONTEND=noninteractive
 
 # ── Core system packages ─────────────────────────────────────────────
-RUN apt-get update && apt-get install -y --no-install-recommends \
+# apt-get upgrade picks up any security/CVE fixes published between
+# debian:trixie-slim base-image rebuilds. Paired with the index update
+# and the install in the same layer so we don't bloat image history.
+RUN apt-get update && \
+    apt-get upgrade -y --no-install-recommends && \
+    apt-get install -y --no-install-recommends \
     ca-certificates \
     curl \
     wget \
@@ -45,6 +50,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     python3-pip \
     python3-venv \
     && ln -s /usr/bin/fdfind /usr/local/bin/fd \
+    && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
 
 # ── Go-compiled tools (install from GitHub to avoid CVEs in Debian's old Go builds)
@@ -68,11 +74,12 @@ ARG GOSU_VERSION=latest
 RUN ARCH=$(case "${TARGETARCH}" in amd64) echo "amd64" ;; arm64) echo "arm64" ;; *) echo "amd64" ;; esac) && \
     V="${GOSU_VERSION}" && \
     if [ "$V" = "latest" ]; then \
-      V=$(curl -sI "https://github.com/tianon/gosu/releases/latest" | awk 'tolower($1)=="location:" { sub(/\r$/,"",$2); n=split($2,a,"/"); print a[n] }'); \
+      V=$(curl -sI --retry 5 --retry-delay 5 --retry-all-errors "https://github.com/tianon/gosu/releases/latest" | awk 'tolower($1)=="location:" { sub(/\r$/,"",$2); n=split($2,a,"/"); print a[n] }'); \
     fi && \
     V="${V#v}" && \
+    [ -n "$V" ] && \
     echo "Installing gosu ${V}" && \
-    curl -fsSL "https://github.com/tianon/gosu/releases/download/${V}/gosu-${ARCH}" -o /usr/local/bin/gosu && \
+    curl -fsSL --retry 5 --retry-delay 5 --retry-all-errors "https://github.com/tianon/gosu/releases/download/${V}/gosu-${ARCH}" -o /usr/local/bin/gosu && \
     chmod +x /usr/local/bin/gosu && \
     gosu --version
 
@@ -81,11 +88,12 @@ ARG FZF_VERSION=latest
 RUN ARCH=$(case "${TARGETARCH}" in amd64) echo "amd64" ;; arm64) echo "arm64" ;; *) echo "amd64" ;; esac) && \
     V="${FZF_VERSION}" && \
     if [ "$V" = "latest" ]; then \
-      V=$(curl -sI "https://github.com/junegunn/fzf/releases/latest" | awk 'tolower($1)=="location:" { sub(/\r$/,"",$2); n=split($2,a,"/"); print a[n] }'); \
+      V=$(curl -sI --retry 5 --retry-delay 5 --retry-all-errors "https://github.com/junegunn/fzf/releases/latest" | awk 'tolower($1)=="location:" { sub(/\r$/,"",$2); n=split($2,a,"/"); print a[n] }'); \
     fi && \
     V="${V#v}" && \
+    [ -n "$V" ] && \
     echo "Installing fzf ${V}" && \
-    curl -fsSL "https://github.com/junegunn/fzf/releases/download/v${V}/fzf-${V}-linux_${ARCH}.tar.gz" | tar -xz -C /usr/local/bin fzf && \
+    curl -fsSL --retry 5 --retry-delay 5 --retry-all-errors "https://github.com/junegunn/fzf/releases/download/v${V}/fzf-${V}-linux_${ARCH}.tar.gz" | tar -xz -C /usr/local/bin fzf && \
     fzf --version
 
 # git-lfs — Git Large File Storage
@@ -93,11 +101,12 @@ ARG GIT_LFS_VERSION=latest
 RUN ARCH=$(case "${TARGETARCH}" in amd64) echo "amd64" ;; arm64) echo "arm64" ;; *) echo "amd64" ;; esac) && \
     V="${GIT_LFS_VERSION}" && \
     if [ "$V" = "latest" ]; then \
-      V=$(curl -sI "https://github.com/git-lfs/git-lfs/releases/latest" | awk 'tolower($1)=="location:" { sub(/\r$/,"",$2); n=split($2,a,"/"); print a[n] }'); \
+      V=$(curl -sI --retry 5 --retry-delay 5 --retry-all-errors "https://github.com/git-lfs/git-lfs/releases/latest" | awk 'tolower($1)=="location:" { sub(/\r$/,"",$2); n=split($2,a,"/"); print a[n] }'); \
     fi && \
     V="${V#v}" && \
+    [ -n "$V" ] && \
     echo "Installing git-lfs ${V}" && \
-    curl -fsSL "https://github.com/git-lfs/git-lfs/releases/download/v${V}/git-lfs-linux-${ARCH}-v${V}.tar.gz" | tar -xz -C /tmp && \
+    curl -fsSL --retry 5 --retry-delay 5 --retry-all-errors "https://github.com/git-lfs/git-lfs/releases/download/v${V}/git-lfs-linux-${ARCH}-v${V}.tar.gz" | tar -xz -C /tmp && \
     install /tmp/git-lfs-${V}/git-lfs /usr/local/bin/git-lfs && \
     rm -rf /tmp/git-lfs-${V} && \
     git lfs install --system && \
@@ -108,11 +117,12 @@ ARG NVIM_VERSION=latest
 RUN ARCH=$(case "${TARGETARCH}" in amd64) echo "x86_64" ;; arm64) echo "arm64" ;; *) echo "x86_64" ;; esac) && \
     V="${NVIM_VERSION}" && \
     if [ "$V" = "latest" ]; then \
-      V=$(curl -sI "https://github.com/neovim/neovim/releases/latest" | awk 'tolower($1)=="location:" { sub(/\r$/,"",$2); n=split($2,a,"/"); print a[n] }'); \
+      V=$(curl -sI --retry 5 --retry-delay 5 --retry-all-errors "https://github.com/neovim/neovim/releases/latest" | awk 'tolower($1)=="location:" { sub(/\r$/,"",$2); n=split($2,a,"/"); print a[n] }'); \
     fi && \
     V="${V#v}" && \
+    [ -n "$V" ] && \
     echo "Installing neovim ${V}" && \
-    curl -fsSL "https://github.com/neovim/neovim/releases/download/v${V}/nvim-linux-${ARCH}.tar.gz" | tar -xz -C /opt && \
+    curl -fsSL --retry 5 --retry-delay 5 --retry-all-errors "https://github.com/neovim/neovim/releases/download/v${V}/nvim-linux-${ARCH}.tar.gz" | tar -xz -C /opt && \
     ln -s /opt/nvim-linux-${ARCH}/bin/nvim /usr/local/bin/nvim && \
     nvim --version | head -1
 
@@ -121,11 +131,12 @@ ARG BAT_VERSION=latest
 RUN ARCH=$(case "${TARGETARCH}" in amd64) echo "x86_64" ;; arm64) echo "aarch64" ;; *) echo "x86_64" ;; esac) && \
     V="${BAT_VERSION}" && \
     if [ "$V" = "latest" ]; then \
-      V=$(curl -sI "https://github.com/sharkdp/bat/releases/latest" | awk 'tolower($1)=="location:" { sub(/\r$/,"",$2); n=split($2,a,"/"); print a[n] }'); \
+      V=$(curl -sI --retry 5 --retry-delay 5 --retry-all-errors "https://github.com/sharkdp/bat/releases/latest" | awk 'tolower($1)=="location:" { sub(/\r$/,"",$2); n=split($2,a,"/"); print a[n] }'); \
     fi && \
     V="${V#v}" && \
+    [ -n "$V" ] && \
     echo "Installing bat ${V}" && \
-    curl -fsSL "https://github.com/sharkdp/bat/releases/download/v${V}/bat-v${V}-${ARCH}-unknown-linux-musl.tar.gz" | tar -xz -C /tmp && \
+    curl -fsSL --retry 5 --retry-delay 5 --retry-all-errors "https://github.com/sharkdp/bat/releases/download/v${V}/bat-v${V}-${ARCH}-unknown-linux-musl.tar.gz" | tar -xz -C /tmp && \
     install /tmp/bat-v${V}-${ARCH}-unknown-linux-musl/bat /usr/local/bin/bat && \
     rm -rf /tmp/bat-v${V}-* && \
     bat --version
@@ -135,11 +146,12 @@ ARG EZA_VERSION=latest
 RUN ARCH=$(case "${TARGETARCH}" in amd64) echo "x86_64" ;; arm64) echo "aarch64" ;; *) echo "x86_64" ;; esac) && \
     V="${EZA_VERSION}" && \
     if [ "$V" = "latest" ]; then \
-      V=$(curl -sI "https://github.com/eza-community/eza/releases/latest" | awk 'tolower($1)=="location:" { sub(/\r$/,"",$2); n=split($2,a,"/"); print a[n] }'); \
+      V=$(curl -sI --retry 5 --retry-delay 5 --retry-all-errors "https://github.com/eza-community/eza/releases/latest" | awk 'tolower($1)=="location:" { sub(/\r$/,"",$2); n=split($2,a,"/"); print a[n] }'); \
     fi && \
     V="${V#v}" && \
+    [ -n "$V" ] && \
     echo "Installing eza ${V}" && \
-    curl -fsSL "https://github.com/eza-community/eza/releases/download/v${V}/eza_${ARCH}-unknown-linux-gnu.tar.gz" | tar -xz -C /usr/local/bin && \
+    curl -fsSL --retry 5 --retry-delay 5 --retry-all-errors "https://github.com/eza-community/eza/releases/download/v${V}/eza_${ARCH}-unknown-linux-gnu.tar.gz" | tar -xz -C /usr/local/bin && \
     eza --version | head -1
 
 # zoxide — smarter cd command
@@ -147,11 +159,12 @@ ARG ZOXIDE_VERSION=latest
 RUN ARCH=$(case "${TARGETARCH}" in amd64) echo "x86_64" ;; arm64) echo "aarch64" ;; *) echo "x86_64" ;; esac) && \
     V="${ZOXIDE_VERSION}" && \
     if [ "$V" = "latest" ]; then \
-      V=$(curl -sI "https://github.com/ajeetdsouza/zoxide/releases/latest" | awk 'tolower($1)=="location:" { sub(/\r$/,"",$2); n=split($2,a,"/"); print a[n] }'); \
+      V=$(curl -sI --retry 5 --retry-delay 5 --retry-all-errors "https://github.com/ajeetdsouza/zoxide/releases/latest" | awk 'tolower($1)=="location:" { sub(/\r$/,"",$2); n=split($2,a,"/"); print a[n] }'); \
     fi && \
     V="${V#v}" && \
+    [ -n "$V" ] && \
     echo "Installing zoxide ${V}" && \
-    curl -fsSL "https://github.com/ajeetdsouza/zoxide/releases/download/v${V}/zoxide-${V}-${ARCH}-unknown-linux-musl.tar.gz" | tar -xz -C /usr/local/bin zoxide && \
+    curl -fsSL --retry 5 --retry-delay 5 --retry-all-errors "https://github.com/ajeetdsouza/zoxide/releases/download/v${V}/zoxide-${V}-${ARCH}-unknown-linux-musl.tar.gz" | tar -xz -C /usr/local/bin zoxide && \
     zoxide --version
 
 # uv — fast Python package manager (replaces pip, venv, pyenv)
@@ -160,11 +173,12 @@ ARG UV_VERSION=latest
 RUN ARCH=$(case "${TARGETARCH}" in amd64) echo "x86_64" ;; arm64) echo "aarch64" ;; *) echo "x86_64" ;; esac) && \
     V="${UV_VERSION}" && \
     if [ "$V" = "latest" ]; then \
-      V=$(curl -sI "https://github.com/astral-sh/uv/releases/latest" | awk 'tolower($1)=="location:" { sub(/\r$/,"",$2); n=split($2,a,"/"); print a[n] }'); \
+      V=$(curl -sI --retry 5 --retry-delay 5 --retry-all-errors "https://github.com/astral-sh/uv/releases/latest" | awk 'tolower($1)=="location:" { sub(/\r$/,"",$2); n=split($2,a,"/"); print a[n] }'); \
     fi && \
     V="${V#v}" && \
+    [ -n "$V" ] && \
     echo "Installing uv ${V}" && \
-    curl -fsSL "https://github.com/astral-sh/uv/releases/download/${V}/uv-${ARCH}-unknown-linux-musl.tar.gz" | tar -xz -C /tmp && \
+    curl -fsSL --retry 5 --retry-delay 5 --retry-all-errors "https://github.com/astral-sh/uv/releases/download/${V}/uv-${ARCH}-unknown-linux-musl.tar.gz" | tar -xz -C /tmp && \
     install /tmp/uv-${ARCH}-unknown-linux-musl/uv /usr/local/bin/uv && \
     install /tmp/uv-${ARCH}-unknown-linux-musl/uvx /usr/local/bin/uvx && \
     rm -rf /tmp/uv-* && \
@@ -198,7 +212,7 @@ RUN if [ "${INSTALL_MEMPALACE}" = "true" ]; then \
 #   rustup-init -y && source ~/.cargo/env
 # Toolchains persist via devbox-rustup and devbox-cargo volumes.
 RUN ARCH=$(case "${TARGETARCH}" in amd64) echo "x86_64" ;; arm64) echo "aarch64" ;; *) echo "x86_64" ;; esac) && \
-    curl -fsSL "https://static.rust-lang.org/rustup/dist/${ARCH}-unknown-linux-gnu/rustup-init" -o /usr/local/bin/rustup-init && \
+    curl -fsSL --retry 5 --retry-delay 5 --retry-all-errors "https://static.rust-lang.org/rustup/dist/${ARCH}-unknown-linux-gnu/rustup-init" -o /usr/local/bin/rustup-init && \
     chmod +x /usr/local/bin/rustup-init
 
 # gitea-mcp — MCP server for Gitea API (official, Go binary, hosted on gitea.com)
@@ -206,11 +220,12 @@ ARG GITEA_MCP_VERSION=latest
 RUN ARCH=$(case "${TARGETARCH}" in amd64) echo "x86_64" ;; arm64) echo "arm64" ;; *) echo "x86_64" ;; esac) && \
     V="${GITEA_MCP_VERSION}" && \
     if [ "$V" = "latest" ]; then \
-      V=$(curl -sI "https://gitea.com/gitea/gitea-mcp/releases/latest" | awk 'tolower($1)=="location:" { sub(/\r$/,"",$2); n=split($2,a,"/"); print a[n] }'); \
+      V=$(curl -sI --retry 5 --retry-delay 5 --retry-all-errors "https://gitea.com/gitea/gitea-mcp/releases/latest" | awk 'tolower($1)=="location:" { sub(/\r$/,"",$2); n=split($2,a,"/"); print a[n] }'); \
     fi && \
     V="${V#v}" && \
+    [ -n "$V" ] && \
     echo "Installing gitea-mcp ${V}" && \
-    curl -fsSL "https://gitea.com/gitea/gitea-mcp/releases/download/v${V}/gitea-mcp_Linux_${ARCH}.tar.gz" \
+    curl -fsSL --retry 5 --retry-delay 5 --retry-all-errors "https://gitea.com/gitea/gitea-mcp/releases/download/v${V}/gitea-mcp_Linux_${ARCH}.tar.gz" \
     | tar -xz -C /usr/local/bin/ gitea-mcp && \
     chmod +x /usr/local/bin/gitea-mcp && \
     gitea-mcp --version
@@ -226,7 +241,7 @@ ENV PATH="/home/developer/.local/bin:/home/developer/.cargo/bin:${PATH}"
 
 # ── Node.js (required for opencode v1.x install + MCP servers) ──────
 ARG NODE_VERSION=22
-RUN curl -fsSL https://deb.nodesource.com/setup_${NODE_VERSION}.x | bash - && \
+RUN curl -fsSL --retry 5 --retry-delay 5 --retry-all-errors https://deb.nodesource.com/setup_${NODE_VERSION}.x | bash - && \
     apt-get install -y --no-install-recommends nodejs && \
     rm -rf /var/lib/apt/lists/*
 
@@ -241,7 +256,7 @@ RUN ARCH=$(case "${TARGETARCH}" in \
       arm64) echo "aarch64" ;; \
       *) echo "x86_64" ;; \
     esac) && \
-    curl -fsSL "https://awscli.amazonaws.com/awscli-exe-linux-${ARCH}.zip" -o /tmp/awscli.zip && \
+    curl -fsSL --retry 5 --retry-delay 5 --retry-all-errors "https://awscli.amazonaws.com/awscli-exe-linux-${ARCH}.zip" -o /tmp/awscli.zip && \
     unzip -q /tmp/awscli.zip -d /tmp && \
     /tmp/aws/install && \
     rm -rf /tmp/aws /tmp/awscli.zip && \
@@ -257,11 +272,12 @@ RUN if [ "${INSTALL_GO}" = "true" ]; then \
       GOARCH=$(case "${TARGETARCH}" in amd64) echo "amd64" ;; arm64) echo "arm64" ;; *) echo "amd64" ;; esac) && \
       V="${GO_VERSION}" && \
       if [ "$V" = "latest" ]; then \
-        V=$(curl -fsSL "https://go.dev/dl/?mode=json" | \
+        V=$(curl -fsSL --retry 5 --retry-delay 5 --retry-all-errors "https://go.dev/dl/?mode=json" | \
             awk -F'"' '/"version":/ { sub(/^go/,"",$4); print $4; exit }'); \
       fi && \
+      [ -n "$V" ] && \
       echo "Installing Go ${V}" && \
-      curl -fsSL "https://go.dev/dl/go${V}.linux-${GOARCH}.tar.gz" | tar -C /usr/local -xz && \
+      curl -fsSL --retry 5 --retry-delay 5 --retry-all-errors "https://go.dev/dl/go${V}.linux-${GOARCH}.tar.gz" | tar -C /usr/local -xz && \
       ln -s /usr/local/go/bin/go /usr/local/bin/go && \
       ln -s /usr/local/go/bin/gofmt /usr/local/bin/gofmt; \
     fi
@@ -280,12 +296,14 @@ RUN if [ "${INSTALL_OMOS}" = "true" ]; then \
       elif [ "$ARCH" = "aarch64" ]; then \
         BUN_ARCH="aarch64"; \
       fi && \
-      curl -fsSL "https://github.com/oven-sh/bun/releases/latest/download/bun-linux-${BUN_ARCH}.zip" -o /tmp/bun.zip && \
+      curl -fsSL --retry 5 --retry-delay 5 --retry-all-errors "https://github.com/oven-sh/bun/releases/latest/download/bun-linux-${BUN_ARCH}.zip" -o /tmp/bun.zip && \
       unzip -o /tmp/bun.zip -d /tmp/bun && \
       mv /tmp/bun/bun-linux-${BUN_ARCH}/bun /usr/local/bin/bun && \
       chmod +x /usr/local/bin/bun && \
+      ln -sf bun /usr/local/bin/bunx && \
       rm -rf /tmp/bun /tmp/bun.zip && \
       bun --version && \
+      test -L /usr/local/bin/bunx && \
       npm install -g oh-my-opencode-slim@${OMOS_VERSION}; \
     fi
 
@@ -322,11 +340,9 @@ COPY rootfs/home/developer/.inputrc      /etc/skel-devbox/.inputrc
 
 # ── Entrypoint ────────────────────────────────────────────────────────
 COPY rootfs/usr/local/lib/opencode-devbox/ /usr/local/lib/opencode-devbox/
-COPY rootfs/usr/local/bin/ /usr/local/bin/
 COPY entrypoint.sh /usr/local/bin/entrypoint.sh
 COPY entrypoint-user.sh /usr/local/bin/entrypoint-user.sh
 RUN chmod +x /usr/local/bin/entrypoint.sh /usr/local/bin/entrypoint-user.sh \
-    /usr/local/bin/mempalace-mcp-server \
     /usr/local/lib/opencode-devbox/*.py
 
 # Start as root — entrypoint adjusts UID/GID then drops to developer

README.md

@@ -474,13 +474,13 @@ Add mempalace as an MCP server in your `opencode.json` (inside `~/.config/openco
   "mcp": {
     "mempalace": {
       "type": "local",
-      "command": ["mempalace-mcp-server"]
+      "command": ["mempalace-mcp"]
     }
   }
 }
 ```
 
-> The image installs mempalace into an isolated `uv tool` venv at `/opt/uv-tools/mempalace`. The `mempalace-mcp-server` wrapper on `PATH` exec's the venv's Python with the `mempalace.mcp_server` module — you don't need to know about the venv to use it.
+> The image installs mempalace into an isolated `uv tool` venv at `/opt/uv-tools/mempalace/`. `uv tool install` places `mempalace-mcp` on `PATH` as a shim whose shebang points at the venv's Python, so MCP clients can invoke it as a normal binary without worrying about the venv. Do **not** use `["python3", "-m", "mempalace.mcp_server"]` — the system Python cannot import from the uv-managed venv and you'll get `ModuleNotFoundError` / `MCP error -32000: connection closed`.
 
 This gives opencode access to 29 MCP tools for searching memory, querying the knowledge graph, managing wings/rooms/drawers, and agent diaries.
 

entrypoint-user.sh

@@ -53,7 +53,7 @@ OMOS_CONFIG="$CONFIG_DIR/oh-my-opencode-slim.json"
 OMOS_CONFIG="$CONFIG_DIR/oh-my-opencode-slim.json"
 
 if [ "${ENABLE_OMOS:-false}" = "true" ]; then
-  if ! command -v bunx &>/dev/null; then
+  if ! command -v bun &>/dev/null; then
     echo "WARNING: ENABLE_OMOS=true but bun is not installed."
     echo "Rebuild with: docker compose build --build-arg INSTALL_OMOS=true"
   elif [ ! -f "$OMOS_CONFIG" ]; then
@@ -70,7 +70,7 @@ if [ "${ENABLE_OMOS:-false}" = "true" ]; then
       OMOS_SKILLS_FLAG="no"
     fi
 
-    bunx oh-my-opencode-slim@latest install \
+    bun x oh-my-opencode-slim@latest install \
       --no-tui \
       --tmux="${OMOS_TMUX_FLAG}" \
       --skills="${OMOS_SKILLS_FLAG}"
@@ -87,7 +87,7 @@ if [ "${ENABLE_OMOS:-false}" = "true" ]; then
       OMOS_SKILLS_FLAG="yes"
       [ "${OMOS_SKILLS:-true}" = "false" ] && OMOS_SKILLS_FLAG="no"
 
-      bunx oh-my-opencode-slim@latest install \
+      bun x oh-my-opencode-slim@latest install \
         --no-tui \
         --tmux="${OMOS_TMUX_FLAG}" \
         --skills="${OMOS_SKILLS_FLAG}" \

rootfs/usr/local/bin/mempalace-mcp-server

@@ -1,10 +0,0 @@
-#!/bin/sh
-# Launcher for the MemPalace MCP server.
-#
-# MemPalace is installed via `uv tool install` into an isolated venv
-# under /opt/uv-tools/. System python3 cannot import mempalace directly,
-# so this wrapper exec's the venv's python with the mcp_server module.
-#
-# Used by opencode.json:
-#   "command": ["mempalace-mcp-server"]
-exec /opt/uv-tools/mempalace/bin/python -m mempalace.mcp_server "$@"

rootfs/usr/local/lib/opencode-devbox/generate-config.py

@@ -75,14 +75,15 @@ def register_mcp_servers(config: dict) -> list[str]:
     servers: dict[str, dict] = {}
 
     # MemPalace — local-first AI memory (if installed).
-    # Uses the mempalace-mcp-server wrapper rather than invoking
-    # `python3 -m mempalace.mcp_server` directly, because mempalace
-    # lives in an isolated uv tool venv that system python3 cannot
-    # import from. The wrapper exec's the right interpreter.
-    if shutil.which("mempalace") and shutil.which("mempalace-mcp-server"):
+    # `mempalace-mcp` is the entry-point binary shipped by the mempalace
+    # Python package. `uv tool install mempalace` places it on PATH as a
+    # shim whose shebang points at the isolated venv's Python, so system
+    # `python3 -m mempalace.mcp_server` (which would fail — system
+    # python3 can't import from the uv venv) is unnecessary here.
+    if shutil.which("mempalace-mcp"):
         servers["mempalace"] = {
             "type": "local",
-            "command": ["mempalace-mcp-server"],
+            "command": ["mempalace-mcp"],
         }
 
     # Gitea — self-hosted Git forge API (if installed).

scripts/smoke-test.sh

@@ -99,7 +99,7 @@ echo "-- Optional / variant-gated --"
 # mempalace: present unless built with INSTALL_MEMPALACE=false
 if docker run --rm --entrypoint="" "$IMAGE" sh -c "command -v mempalace" >/dev/null 2>&1; then
   run "mempalace"             "mempalace --help | head -1"
-  run "mempalace-mcp-server"  "test -x /usr/local/bin/mempalace-mcp-server && echo wrapper-present"
+  run "mempalace-mcp"         "test -x /usr/local/bin/mempalace-mcp && readlink /usr/local/bin/mempalace-mcp"
 else
   echo "  - mempalace not installed (INSTALL_MEMPALACE=false)"
 fi
@@ -107,6 +107,7 @@ fi
 # bun: only in the omos variant
 if [ "$VARIANT" = "omos" ]; then
   run "bun (omos)"            "bun --version"
+  run "bunx symlink (omos)"   "test -L /usr/local/bin/bunx && readlink /usr/local/bin/bunx"
   # oh-my-opencode-slim is npm-installed globally (not a bun install);
   # verify it shows up in the global module list.
   run "oh-my-opencode-slim"   "npm ls -g --depth=0 2>/dev/null | grep oh-my-opencode-slim"