Adds a server-side "small model" capability: direct, cheap LLM calls that
reuse the user's existing OpenCode provider logins — the mechanism OpenCode
uses internally for titles and summaries but does not expose through the
SDK or plugins. Zero new dependencies; plain fetch with per-provider wire
formats, credentials never leave the server.
Core (packages/web/server/lib/small-model):
- Resolution mirrors OpenCode's session scoping: explicit settings override
→ small_model from the OpenCode config → family scan within the session's
provider → the session's own model. The global provider scan only serves
callers without a session context, and background callers forbid it
entirely (restrictToPreferredProvider), so conversation content never
reaches a provider the user didn't pick — explicit choices excepted.
- Per-provider auth replicating OpenCode's plugin loaders: GitHub Copilot
(device token as bearer, no exchange), ChatGPT plan via the codex
Responses API (single-flight OAuth refresh written back to auth.json),
Anthropic messages, Google generateContent, generic OpenAI-compatible.
- OpenCode's free models (opencode/big-pickle, *-free) are never called
directly; unauthenticated providers are skipped by design.
- Prompt clamping to the model's catalog context limit; thinking disabled
where a wire switch exists (Z.AI/GLM, MiniMax-M3, Gemini Flash); robust
content parsing with a clear error when a thinking model spends its whol
budget on reasoning.
- Settings → Sessions gains a Small Model group: use-default checkbox plus
an override picker limited to authenticated providers, persisted with
web/desktop/VS Code sanitization parity.
Consumers:
- Session assist: a server-side watcher on the global SSE hub generates a
short recap and one suggested follow-up after a session idles quietly fo
a minute, stored on session metadata (openchamber.assist). Freshness is
keyed to the last assistant message id, so new activity invalidates the
payload everywhere with no extra writes. The chat shows the recap under
the last message after five quiet minutes and the suggestion as a
dismissible chip above the composer (tap fills the input, never sends).
Gated by a new Chat setting (default on) that is a hard generation
switch. Language is anchored to the conversation itself, with a
script-mismatch guard against model/backend language hallucination.
- TTS: a third input mode, summarized — long replies are condensed to
spoken prose before playback on any TTS engine.
- Git: commit-message and PR generation moved off the active chat session
onto the small model fed with real diffs and the commit list (bodies
included), with a session-transport fallback for free-model-only setups.
- Notes: Add to notes distills long selections into 1-3 dense sentences
preserving exact identifiers, with verbatim fallback on failure.
Fixes along the way:
- The global event watcher now starts unconditionally; it was gated behind
the desktop-notify env, leaving the server-side event hub dead in
packaged apps.
- OpenCode re-emits message.updated for old user messages after idle; the
watcher no longer mistakes those for new activity.
- Session metadata merges from a fresh read right before the PATCH, so
writes made during the generation window (suggestion dismissals, review
links) are preserved; the assist runtime stops during graceful shutdown.
Drop the animated pill/composer morph in favor of instant swaps that are
synchronized with the keyboard choreography: a new oc:keyboard-intent
event collapses the composer (flushSync) before the hide compensation is
measured, so keyboard travel and composer height change land as a single
chat motion on both iOS and Android (Android also gains keyboard signals
and deterministic re-pins around its native resize). The WKWebView caret
is hidden during the transition so it no longer flies to its new position.
Draft screen: starter chips hide instantly while the keyboard is up and
the centered title rides the keyboard shift compensation instead of
double-jumping; the composer drag handle also works in dictation mode;
the highlight mirror is disabled on mobile so the caret matches the text.
Fixes: worktree discovery and the GitHub auth probe now wait for the
runtime connection (no more empty branch pickers / stale auth on cold
start), worktree discovery merges per project instead of clobbering the
persisted map, the cross-project session list resets on instance switch
(with an in-flight load guard) so no stale sessions linger, and mobile
overlay content contains its overscroll instead of bouncing the page.
Bundle the official OpenCode CLI into Electron desktop builds instead of relying on whichever opencode executable happens to be first on PATH. Pin @opencode-ai/sdk to an exact version and use that version as the source of truth for the downloaded CLI artifact.
Add an Electron prepare script that maps the current platform/arch to the official OpenCode release artifact, downloads it from GitHub releases, caches the archive under packages/electron/.cache, stages the binary under resources/opencode-cli, verifies opencode --version, and skips work when the staged binary already matches.
Prefer explicit OpenCode binary overrides first, then the bundled Electron CLI, then PATH/system installs. Keep rejecting the Windows OpenCode desktop app executable as a CLI candidate and add resolver tests for bundled priority, explicit override priority, resourcesPath lookup, and desktop-app rejection.
Suppress OpenCode CLI update prompts when the active CLI source is bundled. The server now reports upgrade-status as unavailable for bundled CLI while still returning the current OpenCode version for About, and rejects direct upgrade attempts with a 409 instead of trying to mutate the bundled binary.
Update desktop release, smoke, and manual macOS DMG workflows to prepare and verify the bundled CLI before packaging, verify the packaged app contains the expected CLI, cache downloads by OS/arch/OpenCode version, and align the Windows smoke runner with production windows-2022.
Document desktop bundling behavior, ignore generated CLI/cache files, add oc-dev helpers, and keep Web/VS Code behavior dependent on installed OpenCode CLI rather than desktop bundled resources.
Adds a cross-platform oc-dev menu for web, mobile, Electron, VS Code, and release workflows
Supports user-level config for remote deploys, iOS device preferences, and maintainer-only release tools
Ports local deploy flows from Bash snippets to Node-native operations
Bohdan Triapitsyn