January 5, 2026
Five bots, one codebase—what could go wrong?
Show HN: Agentastic.dev is Ghostty and Git worktrees = multi-agent CC/Codex IDE
Dev dream or chaos machine? Coders split over “five AIs at once” app
TLDR: A new Mac app lets you run multiple AI code helpers in parallel, each in its own space, with built‑in reviews. Commenters are split: some fear chaos and wasted effort, others want containers and better isolation, and a macOS version mismatch sparked extra drama—multi‑agent coding’s big test.
Meet Agentastic.dev, the Mac app promising to turn your laptop into a robot intern bullpen. It spins up multiple AI code helpers—Claude, Codex, Gemini, and more—each in its own isolated workspace, with built‑in code reviews and side‑by‑side diffs so you can see and merge changes. In plain English: run several coding bots at once, watch what they do, then pick the best bits. It sounds powerful… and a little terrifying.
Cue the community drama. One early reaction: panic. As one user joked, they can barely keep up with one bot, let alone five. The strongest pushback? Waste. Critics argue running parallel agents rebuilds the same context, burns tokens, and spawns duplicate fixes—"like a nightmare office where nobody talks." Fans say the chaos is the point: competition breeds better code.
The pragmatists showed up with receipts. People asked for container support (devcontainers, Docker, domains per workspace) and flagged a spicy detail: the site says macOS 13+, but the app reportedly requires 14.0—instant version‑gate controversy. Others compared it to Branchbox and suggested Ghostty terminals and Orbstack setups. Verdict? A flashy multi‑agent IDE that split the room between power users, panic button smashers, and realists demanding isolation and polish.
Key Points
- •Agentastic.dev is a native macOS IDE for running multiple AI coding agents in parallel.
- •Each agent operates in an isolated Git worktree managed by the IDE to avoid conflicts.
- •The IDE integrates a native diff viewer and supports automated code review via Claude, Codex, and CodeRabbit.
- •Built in Swift, it includes a fast fuzzy finder (Cmd+P) for quick file and symbol navigation.
- •Each worktree is paired with its own Ghostty terminal, and all execution runs locally on the user’s Mac.