Shoubhit Dash
a4cec2c78a
Every protocol wrote its own provider metadata onto stream events through an untyped `providerMetadata(key, Record<string, unknown>)` one-liner — copied verbatim into anthropic-messages, bedrock-converse and gemini — and read it back in request lowering with `isRecord(x) && typeof x.signature === "string"`. Writer and reader of the same namespace never met at compile time, so a typo on either side only showed up as a signature that failed to round-trip. `ProviderShared.providerMetadata(schema)` now pairs a typed `write` with a synchronous `read` (`decodeUnknownOption`). Each of anthropic-messages, bedrock-converse, gemini, open-responses and openai-chat declares one `Schema.Struct` of the fields it publishes under its `providerMetadataKey` and uses the pair; the hand-written readers are deleted, and responses-compaction's raw metadata literal goes through the typed writer. Fields use `lenient` because the old readers were independent per field: a malformed `signature` never dropped `redactedData`. A new test pins that. Every reader was probed against v2 for undefined/null/array/string/ empty-object metadata and unknown keys; behaviour is unchanged. Bedrock keeps its own two-field struct rather than importing Anthropic's, since no protocol depends on another protocol's internals. Raw usage passthroughs stay raw: they forward each provider's usage object and are never read back.
The open source AI coding agent.
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Installation
# 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 branch
Tip
Remove versions older than 0.1.x before installing.
Desktop App (BETA)
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-desktop
Installation Directory
The 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 | bash
Agents
OpenCode 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.
Documentation
For more info on how to configure OpenCode, head over to our docs.
Contributing
If you're interested in contributing to OpenCode, please read our contributing docs before submitting a pull request.
Building on OpenCode
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.