OpenCode fork with efficient persistent state execution.
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This public repository is based on anomalyco/opencode, currently tracking its dev branch. It adds an opt-in state execution mode inspired by SKILL.state.
Default OpenCode sends the projected conversation history on every model turn:
flowchart LR
A[Full transcript] --> B[LLM]
B --> C[Tool]
C --> A
State mode keeps the transcript for UI and audit, but sends the model only a compact state snapshot and latest observation:
flowchart LR
A[State snapshot] --> B[LLM]
O[Latest observation] --> B
B --> P[Validated state patch]
P --> S[(SQLite session state)]
B --> T[Tool action]
T --> O
history mode: transcript -> prompt -> tool -> transcript
state mode: state + observation -> action + patch -> tool -> observation
State mode is opt-in. Existing agents and sessions keep history-based behavior.
Each tool call carries a validated state_patch. The patch is committed after successful tool execution. state_patch is removed from actual tool arguments and durable tool transcript.
Example observation:
{
"tool": "read",
"status": "success",
"input": { "filePath": "src/app.ts" },
"result": { "output": "...file contents..." }
}Result observations are bounded and omit UI/media duplicates. Action inputs remain available, so repeated read, bash, and write calls stay distinguishable.
Pushes run typechecks and build platform artifacts through GitHub Actions. A tag creates a public GitHub Release with downloadable archives and binaries:
git tag v1.0.0
git push origin v1.0.0The workflow is in .github/workflows/build.yml. Artifacts are published for Windows x64, Linux x64, and macOS arm64/x64 when supported by the upstream build script.
This is an independent fork. It is not affiliated with or maintained by the OpenCode team. Upstream code and trademarks remain subject to their original license and project terms.
# YOLO
curl -fsSL https://opencode.ai/install | bash
# Package managers
npm i -g opencode-ai@latest # or bun/pnpm/yarn
scoop install opencode # Windows
choco install opencode # Windows
brew install anomalyco/tap/opencode # macOS and Linux (recommended, always up to date)
brew install opencode # macOS and Linux (official brew formula, updated less)
sudo pacman -S opencode # Arch Linux (Stable)
paru -S opencode-bin # Arch Linux (Latest from AUR)
mise use -g opencode # Any OS
nix run nixpkgs#opencode # or github:anomalyco/opencode for latest dev branchTip
Remove versions older than 0.1.x before installing.
OpenCode is also available as a desktop application. Download directly from the releases page or opencode.ai/download.
| Platform | Download |
|---|---|
| macOS (Apple Silicon) | opencode-desktop-mac-arm64.dmg |
| macOS (Intel) | opencode-desktop-mac-x64.dmg |
| Windows | opencode-desktop-windows-x64.exe |
| Linux | .deb, .rpm, or .AppImage |
# macOS (Homebrew)
brew install --cask opencode-desktop
# Windows (Scoop)
scoop bucket add extras; scoop install extras/opencode-desktopThe install script respects the following priority order for the installation path:
$OPENCODE_INSTALL_DIR- Custom installation directory$XDG_BIN_DIR- XDG Base Directory Specification compliant path$HOME/bin- Standard user binary directory (if it exists or can be created)$HOME/.opencode/bin- Default fallback
# Examples
OPENCODE_INSTALL_DIR=/usr/local/bin curl -fsSL https://opencode.ai/install | bash
XDG_BIN_DIR=$HOME/.local/bin curl -fsSL https://opencode.ai/install | bashOpenCode includes two built-in agents you can switch between with the Tab key.
- build - Default, full-access agent for development work
- plan - Read-only agent for analysis and code exploration
- Denies file edits by default
- Asks permission before running bash commands
- Ideal for exploring unfamiliar codebases or planning changes
Also included is a general subagent for complex searches and multistep tasks.
This is used internally and can be invoked using @general in messages.
Learn more about agents.
For more info on how to configure OpenCode, head over to our docs.
If you're interested in contributing to OpenCode, please read our contributing docs before submitting a pull request.
If you are working on a project that's related to OpenCode and is using "opencode" as part of its name, for example "opencode-dashboard" or "opencode-mobile", please add a note to your README to clarify that it is not built by the OpenCode team and is not affiliated with us in any way.
{ "agent": { "build": { "execution": "state", "state_schema": { "type": "object", "required": ["goal", "next_step"], "properties": { "goal": { "type": "string" }, "next_step": { "type": "string" }, "active_files": { "type": "array", "items": { "type": "string" } }, "failed_attempts": { "type": "array", "items": { "type": "string" } } } } } } }