crystl

crystl is a multitasking terminal built for macOS and made specifically for AI coding agents. Running several agents on one codebase usually causes chaos, so crystl groups your work into gems, and each gem holds terminal shards. Every shard gets its own git working tree and branch, which means multiple agents can work at the same time without overwriting each other. It supports agents like Claude Code, Codex, and Antigravity CLI, and adds token tracking, project optimization scans, a shared task list, and SSH access to remote machines so the same features work away from your desk.

It brings order to running many coding agents at once.

- Group work into gems and shards, then run agents in parallel without clashes.

- Give each shard its own git working tree and branch for safe isolation.

- Track token use per run and scan projects for config problems.

- Connect over SSH so all crystl features work on remote machines.

It fits developers who already lean on coding agents.

- Programmers managing several AI coding agents across tasks.

- Project managers who want a clear view of what each agent is doing.

- Developer teams coordinating front-end, back-end, and testing in parallel.

crystl runs on macOS only, so Windows and Linux developers cannot use it, which is a hard limit on who it serves. The free version exists, but advanced features sit behind paid upgrades, and those terms can change. Running many agents in parallel is demanding, so you will want a capable machine, and there is a learning curve to organizing projects into gems and shards before the workflow feels natural. Keep an eye on token use as you add agents, since parallel runs can consume credits faster than a single session.