fix(sdk): spawn fails on Windows - ENOENT for opencode command #8160

Description

The SDK's createOpencodeServer and createOpencodeTui functions fail on Windows with:

ENOENT: no such file or directory, uv_spawn 'opencode'

Root Cause

On Windows, npm-installed packages create .cmd wrapper scripts (e.g., opencode.cmd). Node.js spawn() without shell: true cannot find these .cmd files in PATH.

Affected Files

• packages/sdk/js/src/server.ts (lines 34 and 109)
• packages/sdk/js/src/v2/server.ts (same locations)

Proposed Fix

Add shell: process.platform === 'win32' to both spawn() calls:

const proc = spawn(\, args, {
  signal: options.signal,
  shell: process.platform === 'win32',  // Add this line
  env: { ... },
})

How to Reproduce

1. Install OpenCode via npm on Windows: npm i -g opencode-ai
2. Use the SDK to spawn the server:

   import { createOpencodeServer } from '@opencode-ai/sdk/server'
   await createOpencodeServer({ port: 0 })

3. Observe ENOENT error

Verified Fix

Tested the fix manually - adding shell: true on Windows resolves the issue while maintaining Unix compatibility.

OpenCode Version

1.1.16

Operating System

Windows 11