release: v2.6.0 — pi-devbox CLI parity + bg-subagents default + opencode 1.17.13 → 1.17.15

- opencode 1.17.13 → 1.17.15 (OPENCODE_VERSION in Dockerfile.variant)
- promote CHANGELOG Unreleased → v2.6.0 (2026-07-08) with opencode release notes
- (base-hash-advancing changes already staged in prior two commits: CLI tools + bg-subagents ENV)

AGENTS.md tag/variant/skill counts verified unchanged; DOCKER_HUB.md in sync.

.env.example

@@ -117,3 +117,9 @@ SSH_KEY_PATH=~/.ssh
 #                              # on image pull. Independent of ENABLE_OMOS.
 #                              # See docs/omos-skills.md
 # OMOS_RESET=false             # Force regenerate oh-my-opencode-slim config on next start (does not affect skills)
+
+# ── Background subagents (opencode experimental flag) ────────────────
+# Baked ON in the image (ENV in Dockerfile.base) because OMOS V2+ default
+# orchestration depends on opencode's native background subagents. Uncomment
+# to opt out (e.g. to force blocking/foreground orchestration).
+# OPENCODE_EXPERIMENTAL_BACKGROUND_SUBAGENTS=false

AGENTS.md

@@ -108,6 +108,7 @@ curl -s https://api.github.com/repos/anomalyco/opencode/releases/tags/v1.15.10 |
 - **Registry buildkit cache-export is currently disabled** — do NOT re-add `cache-from`/`cache-to` to the `build-base` step in `.gitea/workflows/docker-publish-split.yml` without first verifying that buildkit's `mode=max` cache-export to `registry-1.docker.io` no longer returns HTTP 400 from the Hub CDN edge. The regression surfaced ~2026-05-23 and broke five consecutive opencode-devbox publish attempts (runs #332/333/334/336 + a rerun); root-caused on 2026-05-28 by a manual host-side publish that reproduced the same 400 only on `--cache-to` while image push worked fine. Failure shape is stable (`Offset:0` in the `_state` token, HTML response body = CDN-tier rejection, not registry backend), repo-specific (we're the only repo writing `:base-buildcache` mode=max), and explains why pinning `setup-buildx-action@v4.0.0` didn't help (action pin doesn't change the bundled buildkit version on the catthehacker runner image). Trade-off: dockerfile.base changes pay a full ~3 min rebuild instead of pulling cached layers; unchanged bases short-circuit at the Hub-probe step in `base-decide` and never re-build anyway. Variants don't use registry cache so they're unaffected. Re-enable condition: upstream moby/buildkit fix lands AND a low-risk test run succeeds without 400s. See CHANGELOG v1.15.12 `Unreleased` block for the full diagnostic chain. Manual escape-hatch publish procedure: `docs/manual-host-publish.md`.
 - **Push steps wrap `docker buildx build --push` in a 3-attempt retry loop** (15s, 30s backoff) for transient `registry-1.docker.io` blips — rate limits, brief 5xx, CDN flap. Implemented as inline `shell: bash` steps with `docker buildx build` raw rather than `docker/build-push-action@v7` so the loop is visible and tweakable. Affects the 1 base + 5 variant push steps in `.gitea/workflows/docker-publish-split.yml`; smoke-test builds (`load: true`, no push) are untouched. **This does NOT mask deterministic failures** — a true regression (like the cache-export 400 of 2026-05-23..28) fails all 3 attempts identically and the job still fails. Orthogonal to the cache-export disablement above: cache-export was about a deterministic protocol mismatch, retry is about absorbing genuine transients. Both are belt-and-braces with the `ci-release-watcher` skill's transient-rerun heuristic. If you change the matrix of push steps, keep the retry wrapper consistent across them — the pattern is duplicated rather than factored out because Gitea Actions doesn't support reusable composite shell steps cleanly.
 - **Shell scripts use `set -euo pipefail`** — both entrypoints are strict. Errors in volume chown or SSH permission operations are intentionally suppressed with `|| true`.
+- **Background subagents flag baked ON — experimental, watch for promotion** — `Dockerfile.base` sets `ENV OPENCODE_EXPERIMENTAL_BACKGROUND_SUBAGENTS=true`. opencode gates native background subagents behind this flag (`packages/opencode/src/tool/task.ts` fails with `Background subagents require OPENCODE_EXPERIMENTAL_BACKGROUND_SUBAGENTS=true` when unset); `oh-my-opencode-slim` V2+ makes background orchestration its **default** workflow, so the omos variant is effectively degraded without it. It's a base ENV (applies to both variants; harmless on plain opencode — only *enables* a capability) and stays runtime-overridable (`-e …=false`). It's counted in the base hash, so editing that line advances `base-latest`. **REMOVAL TRIGGER:** when opencode promotes background subagents out of `EXPERIMENTAL_` (flag renamed or made default), drop the ENV. No upstream roadmap date as of opencode 1.17.15 / omos 2.1.0 (2026-07). Documented in lockstep in README env table, `.env.example`, and asserted by `scripts/smoke-test.sh` (`bg-subagents env baked`).
 - **MemPalace `diary_write` anyOf workaround — upstream watch target** — `Dockerfile.base` carries a perl RUN block that strips a root-level `anyOf` from `mempalace_diary_write`'s advertised `inputSchema`. Mempalace 3.3.x/3.4.0 advertise `anyOf: [{required:[entry]},{required:[content]}]`, which Anthropic's tools API (and Codex) reject at session start (`input_schema does not support oneOf, allOf, or anyOf at the top level`), making the whole MCP server fail to load. The workaround is idempotent and self-deactivating: when upstream ships the real fix the regex stops matching and the build prints `WARN: ... upstream may have changed shape` — **that WARN is the signal to delete the RUN block.** Upstream status (last checked **2026-06-14**): issue **#1728 is still OPEN**; PR **#1735 is CLOSED UNMERGED (2026-06-11) — do NOT watch it, it is dead**; PR **#1717 is the current live fix candidate**; mempalace PyPI latest is **3.4.0 (== our pin)**, so **no release contains the fix yet** and the workaround must stay. **Removal trigger:** a mempalace release **> 3.4.0** that actually strips the root-level `anyOf` lands on PyPI — then bump `MEMPALACE_VERSION` (in lockstep with pi-devbox) and drop the RUN block. NOTE: `MEMPALACE_VERSION` (the pip pin) and `MEMPALACE_TOOLKIT_REF` (the git ref for the `mempalace-toolkit` clone) are unrelated despite the shared prefix; do not conflate them.
 - **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.jsonc` — system Python can't import from the uv venv.
 - **generate-config.py idempotency** — the script MUST never overwrite an existing `opencode.jsonc` or legacy `opencode.json`. Config persists in the `devbox-opencode-config` named volume; accidentally clobbering that file would destroy hand-edits. The smoke test asserts this.

CHANGELOG.md

@@ -6,6 +6,50 @@ Tags follow **independent semver** (since `v2.0.0`) — they version *this image
 
 ---
 
+## v2.6.0 — 2026-07-08
+
+Minor release. Headline: **CLI-toolset parity with the sibling `pi-devbox`
+image** (adds `yq`, `pandoc`, `graphviz`, `tealdeer`/`tldr`, and the `dot-watch`
+wrapper) plus **background subagents enabled by default**
+(`OPENCODE_EXPERIMENTAL_BACKGROUND_SUBAGENTS=true`), and an opencode bump
+`1.17.13 → 1.17.15`. Touches `Dockerfile.base` (apt list, new binary, new ENV)
+so the base image rebuilds (`base-<hash>` advances); the opencode bump rebuilds
+the variant layers.
+
+### Added
+
+- **CLI tooling parity with pi-devbox.** Added `yq` (YAML query/transform,
+  pairs with `jq`), `pandoc` (Markdown↔HTML/etc. document converter), and
+  `graphviz` (`dot` diagram rendering) via apt; `tealdeer` (the `tldr` command —
+  quick command examples) as a ~5 MB static musl binary via the floated
+  `TEALDEER_VERSION` arg; and the `dot-watch` wrapper (`rootfs/usr/local/bin/dot-watch`,
+  auto-renders a `.dot` file to PNG on save, graphviz-only). Deliberately did
+  **not** port `socat`, `imagemagick`, or the pi-studio-specific `studio-expose`
+  bridge. smoke-test asserts presence of all five.
+- **Background subagents enabled by default (`OPENCODE_EXPERIMENTAL_BACKGROUND_SUBAGENTS=true`).**
+  Baked as a base-level `ENV` in `Dockerfile.base`. opencode gates native
+  background subagents behind this experimental flag; OMOS V2+ makes background
+  orchestration its default workflow, so the omos variant was effectively
+  degraded without it. Overridable at runtime (`-e OPENCODE_EXPERIMENTAL_BACKGROUND_SUBAGENTS=false`).
+  Documented in README env table and `.env.example`; smoke-test asserts the var
+  is present in the image environment. Marked experimental upstream — carries a
+  removal-trigger note in `Dockerfile.base` + AGENTS.md for when opencode
+  promotes it out of experimental (no upstream roadmap date as of opencode
+  1.17.15 / omos 2.1.0).
+
+### Changed
+
+- **opencode `1.17.13` → `1.17.15`.** v1.17.14 adds a code-mode MCP adapter for
+  confined orchestration scripts, hides the `execute` tool unless code mode is
+  enabled, and **fixes paginated MCP tool catalogs losing tool metadata +
+  output-schema validation** (relevant — this image wires the mempalace,
+  gitea-mcp, and context7 MCP servers). v1.17.15 is bugfixes + desktop/TUI UX
+  (Z.ai context-overflow error classification, macOS Sequoia titlebar, model
+  picker). No breaking changes. Release notes:
+  <https://github.com/anomalyco/opencode/releases>.
+
+---
+
 ## v2.5.0 — 2026-07-02
 
 Minor release. Headline: **optional shared/external MemPalace** —

Dockerfile.base

@@ -50,6 +50,7 @@ RUN apt-get update && \
     openssh-client \
     gnupg \
     jq \
+    yq \
     ripgrep \
     fd-find \
     tree \
@@ -72,6 +73,8 @@ RUN apt-get update && \
     python3-pip \
     python3-venv \
     nano \
+    pandoc \
+    graphviz \
     && ln -s /usr/bin/fdfind /usr/local/bin/fd \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
@@ -295,6 +298,22 @@ RUN ARCH=$(case "${TARGETARCH}" in amd64) echo "x86_64" ;; arm64) echo "aarch64"
     rm -rf /tmp/uv-* && \
     uv --version
 
+# tealdeer — Rust port of tldr (community-maintained command examples)
+# Provides the `tldr` command; ~5 MB static binary, ~135 MB smaller than
+# the Node tldr global. Same UX as the Node version.
+ARG TEALDEER_VERSION=latest
+RUN ARCH=$(case "${TARGETARCH}" in amd64) echo "x86_64" ;; arm64) echo "aarch64" ;; *) echo "x86_64" ;; esac) && \
+    V="${TEALDEER_VERSION}" && \
+    if [ "$V" = "latest" ]; then \
+      V=$(curl -sI --retry 5 --retry-delay 5 --retry-all-errors "https://github.com/tealdeer-rs/tealdeer/releases/latest" | awk 'tolower($1)=="location:" { sub(/\r$/,"",$2); n=split($2,a,"/"); print a[n] }'); \
+    fi && \
+    V="${V#v}" && \
+    [ -n "$V" ] && \
+    echo "Installing tealdeer ${V}" && \
+    curl -fsSL --retry 5 --retry-delay 5 --retry-all-errors "https://github.com/tealdeer-rs/tealdeer/releases/download/v${V}/tealdeer-linux-${ARCH}-musl" -o /usr/local/bin/tldr && \
+    chmod +x /usr/local/bin/tldr && \
+    tldr --version
+
 # ── MemPalace — local-first AI memory system ─────────────────────────
 # Provides semantic search over conversation history via 29 MCP tools.
 # Always installed in the base (variant-independent). Set
@@ -384,6 +403,17 @@ ENV LANGUAGE=en_US:en
 ENV LC_ALL=en_US.UTF-8
 ENV EDITOR=nvim
 ENV PATH="/home/developer/.local/bin:/home/developer/.cargo/bin:${PATH}"
+# Enable opencode's native background subagents. opencode gates this behind an
+# experimental flag (packages/opencode/src/tool/task.ts errors with
+# "Background subagents require OPENCODE_EXPERIMENTAL_BACKGROUND_SUBAGENTS=true"
+# when unset). oh-my-opencode-slim V2+ makes background orchestration its DEFAULT
+# workflow, so the omos variant is effectively broken without this. Baked here as
+# a base ENV (applies to both variants; harmless for plain opencode — it only
+# *enables* a capability). Overridable at runtime: -e OPENCODE_EXPERIMENTAL_BACKGROUND_SUBAGENTS=false.
+# REMOVAL TRIGGER: when opencode promotes background subagents out of experimental
+# (flag becomes default / renamed), drop this ENV. No upstream roadmap date as of
+# opencode 1.17.15 / omos 2.1.0 (2026-07).
+ENV OPENCODE_EXPERIMENTAL_BACKGROUND_SUBAGENTS=true
 
 # ── Node.js (required for opencode/pi/omos at variant build + MCP servers) ──
 ARG NODE_VERSION=22
@@ -466,6 +496,7 @@ COPY rootfs/home/developer/.gitignore_global /etc/skel-devbox/.gitignore_global
 
 # ── Entrypoint ────────────────────────────────────────────────────────
 COPY rootfs/usr/local/lib/opencode-devbox/ /usr/local/lib/opencode-devbox/
+COPY rootfs/usr/local/bin/dot-watch /usr/local/bin/dot-watch
 # Image-baked skills + harness instruction. Under /usr/local so a named volume
 # over a home dir (e.g. devbox-opencode-config on ~/.config/opencode) can't
 # shadow them; entrypoint-user.sh links them into ~/.agents/skills/ and
@@ -475,6 +506,7 @@ COPY rootfs/usr/local/share/opencode-devbox/ /usr/local/share/opencode-devbox/
 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/dot-watch \
     /usr/local/lib/opencode-devbox/*.py
 
 # Start as root — entrypoint adjusts UID/GID then drops to developer

Dockerfile.variant

@@ -39,7 +39,7 @@ ARG USER_NAME=developer
 # edit, so the cache-hit class of bug that bit pi-devbox v0.74.0..
 # v0.75.5 cannot apply here.
 ARG INSTALL_OPENCODE=true
-ARG OPENCODE_VERSION=1.17.13
+ARG OPENCODE_VERSION=1.17.15
 RUN if [ "${INSTALL_OPENCODE}" = "true" ]; then \
       NPM_CONFIG_PREFIX=/usr npm install -g opencode-ai@${OPENCODE_VERSION} && \
       opencode --version ; \

README.md

@@ -148,6 +148,7 @@ docker compose exec -u developer devbox aws --version
 | `OMOS_TMUX` | Enable tmux pane integration for OMOS | `false` |
 | `OMOS_SKILLS` | Symlink bundled OMOS skills from the image into `~/.agents/skills/` each start | `true` |
 | `OMOS_RESET` | Force regenerate OMOS config on next start (does not affect skills) | `false` |
+| `OPENCODE_EXPERIMENTAL_BACKGROUND_SUBAGENTS` | Enable opencode's native background subagents. Baked on in the image because OMOS V2+ default orchestration depends on it. Set `false` to opt out. opencode marks this **experimental** — see [AGENTS.md](AGENTS.md) removal trigger | `true` |
 | `SKILLSET_CONTAINER_PATH` | Path to skillset repo inside container (for auto-deploy when not at /workspace/skillset) | Auto-detect |
 
 ### Reaching your LAN from the container
@@ -835,7 +836,11 @@ Container (Debian trixie)
 ├── oh-my-opencode-slim (optional — multi-agent orchestration plugin, includes Bun)
 ├── AWS CLI v2 (SSO + Bedrock auth)
 ├── neovim 0.12, nano, micro, tmux, htop, bat, eza, zoxide, uv, rustup, make, gcc, g++, rsync
-├── git, git-crypt, age, gitleaks, ssh, ripgrep, fd, fzf, jq, curl, tree
+├── git, git-crypt, age, gitleaks, ssh, ripgrep, fd, fzf, jq, yq, curl, tree
+├── pandoc (Markdown↔HTML/PDF/etc. conversion)
+├── graphviz (dot diagram rendering)
+├── tldr (tealdeer — quick command examples)
+├── dot-watch (auto-render .dot to PNG on save)
 ├── Node.js (for MCP servers)
 ├── Bun (optional — included with oh-my-opencode-slim)
 ├── entrypoint.sh (UID adjustment, git config, provider setup)

rootfs/usr/local/bin/dot-watch

@@ -0,0 +1,59 @@
+#!/usr/bin/env bash
+# dot-watch — auto-rerender a graphviz .dot file to PNG on every save.
+#
+# WHY THIS EXISTS
+#   pi-studio renders mermaid natively but has no graphviz/DOT renderer.
+#   Its markdown preview DOES render local image links (.png/.jpg/.gif/.webp),
+#   and the editor offers "refresh from disk". This helper closes the loop:
+#   edit a .dot file -> dot-watch regenerates <name>.png -> hit refresh in
+#   Studio to see the update. Uses mtime polling (no inotify dependency,
+#   which isn't in the trixie-slim base).
+#
+# USAGE
+#   dot-watch <file.dot> [layout] [dpi]
+#     layout: dot|neato|fdp|circo|twopi  (default: dot)
+#     dpi:    output resolution           (default: 150)
+#   env: DOT_WATCH_INTERVAL=<seconds>     poll interval (default: 1)
+#
+# EXAMPLES
+#   dot-watch /workspace/graph.dot
+#   dot-watch graph.dot neato 200
+
+set -euo pipefail
+
+SRC="${1:?usage: dot-watch <file.dot> [layout] [dpi]}"
+LAYOUT="${2:-dot}"
+DPI="${3:-150}"
+
+[[ -f "$SRC" ]] || { echo "error: no such file: $SRC" >&2; exit 1; }
+command -v "$LAYOUT" >/dev/null || { echo "error: layout engine '$LAYOUT' not found" >&2; exit 1; }
+
+OUT="${SRC%.dot}.png"
+INTERVAL="${DOT_WATCH_INTERVAL:-1}"   # seconds between polls
+ERRLOG="$(mktemp -t dot-watch.XXXXXX.err)"
+trap 'rm -f "$ERRLOG"' EXIT
+
+render() {
+    if "$LAYOUT" -Tpng -Gdpi="$DPI" "$SRC" -o "$OUT" 2> "$ERRLOG"; then
+        printf '[%s] rendered -> %s\n' "$(date +%H:%M:%S)" "$OUT"
+    else
+        printf '[%s] DOT error:\n' "$(date +%H:%M:%S)"
+        sed 's/^/    /' "$ERRLOG"
+    fi
+}
+
+# portable mtime (GNU stat, fallback to BSD stat)
+mtime() { stat -c %Y "$1" 2>/dev/null || stat -f %m "$1" 2>/dev/null; }
+
+echo "watching $SRC ($LAYOUT, ${DPI}dpi) -> $OUT  [Ctrl-C to stop]"
+render
+last="$(mtime "$SRC")"
+while true; do
+    sleep "$INTERVAL"
+    [[ -f "$SRC" ]] || continue
+    now="$(mtime "$SRC")"
+    if [[ "$now" != "$last" ]]; then
+        last="$now"
+        render
+    fi
+done

scripts/smoke-test.sh

@@ -131,12 +131,22 @@ run "fzf"               "fzf --version"
 run "fd"                "fd --version"
 run "rg"                "rg --version | head -1"
 run "jq"                "jq --version"
+run "yq"                "yq --version"
 run "git-crypt"         "git-crypt --version | head -1"
 run "gitleaks"          "gitleaks version"
 run "aws"               "aws --version"
 run "gitea-mcp"         "gitea-mcp --version"
 run "gosu"              "gosu --version"
 run "tmux"              "tmux -V"
+run "pandoc"            "pandoc --version | head -1"
+run "graphviz (dot)"    "dot -V"
+run "tldr (tealdeer)"   "tldr --version"
+run "dot-watch"         "test -x /usr/local/bin/dot-watch && bash -n /usr/local/bin/dot-watch && echo ok"
+
+# Background subagents: opencode gates them behind this experimental env var,
+# and OMOS V2+ default orchestration depends on it. Baked ON as an ENV in
+# Dockerfile.base — assert it's present in the image environment (both variants).
+run_expect "bg-subagents env baked" "printenv OPENCODE_EXPERIMENTAL_BACKGROUND_SUBAGENTS" "true"
 
 # SSH ControlMaster baked defaults: the config file must exist (image-level)
 # and ssh -G must report ControlPath rooted at /tmp/sshcm/ for an arbitrary