claude-engineering-plugin/docs/reports/2026-02-20-opencode-command-md-merge/2026-02-20-phase-03-write-command-files.md

Phase 3 Handoff Report: Write Command Files as .md

Date

2026-02-20

Phase

3 of feature: OpenCode Commands as .md Files, Config Merge, and Permissions Default Fix

Summary

Implemented the commandsDir path resolution and command file writing in src/targets/opencode.ts.

Changes Made

1. Updated src/targets/opencode.ts

Added commandDir to path resolver:

• In global branch (line 52): Added commandDir: path.join(outputRoot, "commands") with inline comment
• In custom branch (line 66): Added commandDir: path.join(outputRoot, ".opencode", "commands") with inline comment

Added command file writing logic (line 24-30):

• Iterates bundle.commandFiles
• Writes each command as <commandsDir>/<name>.md with trailing newline
• Creates backup before overwriting existing files

2. Added tests in tests/opencode-writer.test.ts

• "writes command files as .md in commands/ directory" - Tests global-style output (.config/opencode)
• "backs up existing command .md file before overwriting" - Tests backup creation

Test Results

bun test tests/opencode-writer.test.ts
6 pass, 0 fail

All existing tests continue to pass:

bun test
183 pass, 0 fail

Deliverables Complete

• Updated src/targets/opencode.ts with commandDir path and write logic
• New tests in tests/opencode-writer.test.ts
• All tests pass

Notes

• Used openCodePaths instead of paths variable name to avoid shadowing the imported path module
• Command files are written with trailing newline (content + "\n")
• Backup uses timestamp format .bak.2026-02-20T...