Dev turns ChatGPT desktop into an orchestrator running 12 ACP coding agents in parallel
ashokallu · reddit · 2026-11-06
A developer shared a 3-month project: a modified ChatGPT community app running on Ubuntu 24 that orchestrates 12 coding agent harnesses in parallel via the ACP protocol.
Key points:
- Integrates ACP-compatible harnesses from the official registry: Antigravity, Claude Code, Codex, DeepSeek, Grok Build, Mimo Code, MiniMax Code, Mistral Vibe, Muse, OpenCode, Pi, and Qwen Code — each agent stays in its own harness, so no terms-of-service violation.
- Added orchestration features to the ChatGPT app: terminal IDs so agents know which terminal gets which command; real-time token/speed stats under the composer UI; and "attention-alerts" that beep for 30 seconds when a task finishes.
- The author claims he once patched a ChatGPT release bug that crashed the app on launch, using Claude models on a Saturday before the official fix landed the following Monday.
- He argues GUI-based orchestration of parallel child tasks beats CLI/TUI workflows, and says he continuously benchmarks subscriptions/APIs from Claude, Codex, Grok, Muse, Qwen, DeepSeek and others.
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