feat: Add Windows compatibility for OpenCode CLI detection

[tarunerror]

User description

Summary

This PR adds full Windows compatibility for OpenCode CLI detection and improves cross-platform support.

Changes

Rust Backend (src-tauri/src/lib.rs)

• OpenCode executable detection: Now searches for .exe, .cmd, and .bat extensions on Windows
• npm global path: Added %APPDATA%\npm to search paths for npm-installed OpenCode
• Config path resolution: Added APPDATA and USERPROFILE environment variable fallbacks for Windows
• Error messages: Platform-specific install instructions (npm on Windows, brew on macOS)

Frontend (src/App.tsx)

• Browser extension path: Shows Windows-style path (%USERPROFILE%\.opencode-browser\extension) on Windows
• Error messages: Platform-aware error messages with appropriate install commands
• Install UI: Shows npm install -g opencode-ai on Windows, brew install on macOS/Linux

CI/CD (.github/workflows/build-all-platforms.yml)

• New GitHub Actions workflow to build for all platforms:
  • Windows (x64)
  • macOS Intel (x64)
  • macOS Apple Silicon (ARM64)
  • Linux (x64)

Testing

• Built and tested on Windows 11
• OpenCode CLI detection works with npm-installed opencode.cmd
• All existing macOS/Linux paths remain unchanged

Related Issues

Fixes Windows compatibility issues where OpenCode CLI installed via npm was not detected.

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PR Type

Enhancement, Documentation

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Description

• Add full Windows compatibility for OpenCode CLI detection with support for .exe, .cmd, and .bat extensions

• Implement Windows npm global path (%APPDATA%\npm) to search paths for npm-installed OpenCode

• Add Windows environment variable fallbacks (APPDATA, USERPROFILE) for config path resolution

• Display platform-specific install instructions (npm on Windows, brew on macOS/Linux) in error messages

• Update frontend UI to show Windows-style paths (%USERPROFILE%\.opencode-browser\extension) on Windows

• Add multi-platform CI/CD GitHub Actions workflow supporting Windows (x64), macOS Intel (x64), macOS Apple Silicon (ARM64), and Linux (x64)

• Add Windows capability schema for Tauri permissions configuration

• Simplify release process documentation in AGENTS.md

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Diagram Walkthrough

flowchart LR
  A["Windows Detection"] -->|"Platform Check"| B["Platform-Specific Paths"]
  A -->|"Environment Variables"| C["Config Resolution"]
  B -->|"npm path"| D["OpenCode CLI Detection"]
  B -->|"UI Messages"| E["Frontend Display"]
  C -->|"APPDATA/USERPROFILE"| D
  D -->|"Multi-platform Build"| F["CI/CD Workflow"]
  F -->|"Windows/macOS/Linux"| G["Release Artifacts"]

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File Walkthrough

	Relevant files
Enhancement	lib.rs Windows compatibility for OpenCode CLI detection and config paths src-tauri/src/lib.rs Changed OPENCODE_EXECUTABLE constant to OPENCODE_EXECUTABLES array supporting .exe, .cmd, and .bat extensions on Windows Updated resolve_in_path() to accept multiple executable names and search for all variants Added Windows npm global path (%APPDATA%\npm) to candidate OpenCode paths Enhanced resolve_opencode_config_path() to support Windows environment variables (APPDATA, USERPROFILE) for config directory resolution Updated error messages in engine_start() to show platform-specific install instructions (npm for Windows, brew for macOS/Linux) Applied consistent code formatting and indentation throughout the file +469/-437 App.tsx Platform-aware UI messages and Windows path handling          src/App.tsx Added platform detection using navigator.platform.includes("Win") to show Windows-specific paths and install instructions Updated browser extension path to show %USERPROFILE%\.opencode-browser\extension on Windows instead of ~/.opencode-browser/extension Modified error messages to display npm install -g opencode-ai on Windows and brew install on other platforms Applied extensive code formatting improvements with better line breaks and indentation for readability +686/-210
Configuration changes	build-all-platforms.yml Multi-platform CI/CD build workflow for all targets            .github/workflows/build-all-platforms.yml New GitHub Actions workflow for building OpenWork across multiple platforms Supports Windows (x64), macOS Intel (x64), macOS Apple Silicon (ARM64), and Linux (x64) Includes platform-specific setup steps (Linux dependencies, Rust toolchain targets) Automatically creates GitHub releases with platform-specific artifacts and download instructions +111/-0  settings.local.json Claude local development settings configuration                    .claude/settings.local.json New local Claude settings file with permission configuration Grants permissions for Bash, Write, and Edit MCP tools +9/-0      windows-schema.json Add Windows capability schema for Tauri permissions            src-tauri/gen/schemas/windows-schema.json Added comprehensive JSON schema file for Windows capability configuration Defines capability file format with support for single capabilities, arrays, and objects Includes extensive permission definitions for core plugins (app, event, image, menu, path, resources, tray, webview, window, dialog) Supports platform-specific targeting and remote URL configuration +2310/-0
Documentation	AGENTS.md Simplify release process documentation                                      AGENTS.md Simplified release process documentation by reducing version bump requirements Clarified that only package.json needs mandatory updates (with Tauri/Rust versions kept in sync) Streamlined release steps from 4 to 3 main steps Updated verification commands to use consistent formatting with backticks +8/-11

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Summary by CodeRabbit

• New Features

  • Enhanced cross-platform support with Windows-specific installation guidance for missing dependencies

• Bug Fixes

  • Improved OpenCode CLI detection across multiple standard locations
  • Enhanced error handling and state management in engine lifecycle

• Documentation

  • Updated release process documentation for multi-platform builds

_{✏️ Tip: You can customize this high-level summary in your review settings.}

[benjaminshafii]

Thanks for tackling Windows support — we really want OpenWork to work smoothly on Windows.

Before we can merge, could you please:

1. Share a short screen recording on Windows (Loom/MP4 is fine) showing:

   • installing OpenCode via npm install -g opencode-ai
   • OpenWork successfully detects opencode and starts the engine

2. Rebase on the latest main and resolve the merge conflicts (GitHub currently marks this PR as conflicting).

3. Keep the PR tightly scoped to “Windows capability”:

   • remove .claude/settings.local.json (local config shouldn’t be committed)
   • consider splitting out the new workflow / large generated schema changes unless they’re required for Windows detection
   • avoid formatting-only churn so the functional changes are easy to review

4. Confirm that if we detect opencode.cmd/.bat, it can be executed reliably from Rust (often requires invoking cmd.exe /C ...), or adjust the implementation accordingly.

Thank you again — happy to re-review quickly after an update.