Kit Langton
bab2fbc7f6
Cleanup of the Bedrock adapter (ba1705d) following parallel review
passes for code reuse, code quality, and efficiency.
- Drop dead `text` join helper and unused `TextPart` import.
- Schema-validate `model.native.aws_credentials` instead of seven
manual `typeof` guards in `credentialsFromInput`. Removes the
unsafe `as Record<string, unknown>` cast and fixes the dead
`native?.region` fallback (the `model()` constructor only writes
`aws_region`).
- Skip the JSON.parse → JSON.stringify → Schema.fromJsonString triple
round-trip in the frame consumer. The eventstream codec already
hands us a UTF-8 payload; parse once and feed the wrapped object
directly to `Schema.decodeUnknownSync(BedrockChunk)`.
- Replace O(n²) buffer concat in `consumeFrames` with a cursor-based
state `{ buffer, offset }`. Compaction happens once per network
chunk via `appendChunk` instead of per frame; frame slicing is
zero-copy via `subarray`. Bounded buffer growth regardless of
stream length.
- Rename `ParserState.finishReason` → `pendingStopReason` (raw
string) and defer the `mapFinishReason` call to the single emit
site, plus the `onHalt` fallback. Tightens the helper's signature
to `(reason: string)` so the chunk-typed `messageStop.stopReason`
flows through without the optional widening.
- Restructure `signRequest` to take an object parameter (was four
positional args), and replace the manual `forEach`-into-record with
`Object.fromEntries(signed.headers.entries())`.
- Inline single-use `status` and `useTools` variables.
- Widen `fixedResponse` to accept `ConstructorParameters<Response>[0]`
so binary fixtures (`Uint8Array`, streams) flow without casts. The
Bedrock test's `fixedBytes` helper now wraps it cleanly.
- Tidy `captureResponseBody` into a ternary returning the union shape
directly so the call site spreads the captured object without
reaching for `bodyEncoding` explicitly.
Verified: `bun typecheck` clean, 106 pass / 0 fail / 0 skip
(unchanged from before the refactor).
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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-darwin-aarch64.dmg |
| macOS (Intel) | opencode-desktop-darwin-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.
FAQ
How is this different from Claude Code?
It's very similar to Claude Code in terms of capability. Here are the key differences:
- 100% open source
- Not coupled to any provider. Although we recommend the models we provide through OpenCode Zen, OpenCode can be used with Claude, OpenAI, Google, or even local models. As models evolve, the gaps between them will close and pricing will drop, so being provider-agnostic is important.
- Out-of-the-box LSP support
- A focus on TUI. OpenCode is built by neovim users and the creators of terminal.shop; we are going to push the limits of what's possible in the terminal.
- A client/server architecture. This, for example, can allow OpenCode to run on your computer while you drive it remotely from a mobile app, meaning that the TUI frontend is just one of the possible clients.