Keep your coding agent. Add MUSCLE to it.
MUSCLE Tool is a plugin for the coding agents you already use. It adds reversible context compression, spending limits, project memory and review skills. Install it once, then turn it on for the projects you choose.
At a glance
- Status
- Early access
- Works inside
- Claude Code, Codex and opencode
- Setup
- Install once, enable per project
- Runs on
- MUSCLE Flex
All products
More done in every session.
Compress without loss
Shrink context. Restore it exactly.
Tool crushes bulky output before it reaches the model and keeps the original, so you can bring back any detail byte for byte.
Hold the budget
Context limits for every role.
Set tight context limits for the main agent and each helper, so one noisy task can't drain a session.
Skills and memory
It learns from mistakes it can verify.
Tool writes and refines skills as you work, learns from mistakes it has confirmed, and keeps an indexed wiki of your project.
A second look
A review pass before you commit.
A secondary review checks the work before it reaches you. Delegate routine steps to lighter models and keep the strongest for the hard parts.
On per project, never global
Turn it on only where you want it.
Tool installs globally but stays off until you enable it in a project, and one project's memory never leaks into another.