Pl4n
- Updated January 9, 2026
- gbasin/pl4n
A plugin that orchestrates Claude Code and Codex together to collaboratively produce implementation plans with human-in-the-loop review. It uses an ensemble of models to plan work before coding starts. Developers use it to generate and vet implementation plans for a feature or task.
Key points
- Claude Code + Codex ensemble
- Implementation plans
- Human-in-the-loop review
- Multi-agent orchestration
Pl4n by the numbers
- Data as of Jul 7, 2026 (Skillselion catalog sync)
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| Last updated | January 9, 2026 |
|---|---|
| Repository | gbasin/pl4n ↗ |
What it does
Orchestrate Claude Code and Codex to collaboratively create implementation plans with human-in-the-loop review.
README.md
Pl4n Claude Code Plugin (Bun)
Claude Code plugin for the pl4n multi-agent ensemble planning CLI.
Installation
# Add the pl4n marketplace
/plugin marketplace add gbasin/pl4n
# Install the plugin
/plugin install pl4n@pl4n
Or install directly:
/plugin install github:gbasin/pl4n
Commands
| Command | Description |
|---|---|
/pl4n:plan <feature> |
Start a planning session |
/pl4n:continue <session_id> |
Continue after editing |
/pl4n:approve <session_id> |
Lock plan as final |
/pl4n:status <session_id> |
Check session status |
/pl4n:list |
List all sessions |
Example
> /pl4n:plan Add rate limiting to API endpoints
Started planning session `swift-river` for "Add rate limiting to API endpoints"
Agents are working...
Done! Plan ready at: .pl4n/sessions/swift-river/turns/001.md
> [edit the file]
> /pl4n:continue swift-river
Turn 2 complete. Plan at: .pl4n/sessions/swift-river/turns/002.md
> /pl4n:approve swift-river
Plan approved! Final plan: .pl4n/sessions/swift-river/PLAN.md
Skill
The plugin includes a skill that teaches Claude about pl4n syntax and workflow. It activates automatically when discussing planning sessions.
Prerequisites
Requires the pl4n CLI to be available:
bun install
bun run src/index.ts --help
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