Plan mode
The agent drafts a structured plan you review and approve before a single line of code is written. Watch it move from planning to execution with live phase badges.
Planning
Executing
An agentic coding platform. Autonomous modes that plan, verify, and experiment, with you at the wheel.
Platform
A complete platform, from first prompt to shipped code, across desktop and mobile.
Open, switch, and manage multiple agent sessions side by side. Each tab is an independent process.
Live token streaming with markdown rendering and syntax highlighting as it happens.
Dedicated views for file edits (diff), shell commands, subagents, and more.
Switch models and thinking levels on the fly, without restarting the session.
Drive your agent sessions straight from your phone, wherever you are.
Configure your MCP servers from a graphical interface, per project or globally.
A fully keyboard-driven workflow, built for developers.
Browse, search, and resume past sessions. Pick up right where you left off.
Theme-aware UI with instant, persisted switching, and this site follows along.
Autonomous modes
Built-in autonomous loops that plan, verify, and experiment, so you delegate more and steer less.
The agent drafts a structured plan you review and approve before a single line of code is written. Watch it move from planning to execution with live phase badges.
Define acceptance criteria and the agent runs autonomously, implementing, then self-verifying against your checks after every step. It only stops when the goal is truly met.
An autonomous experimentation loop: the agent forms a hypothesis, measures a metric, then keeps or reverts each change, building real intuition about what improves your codebase.
−42ms+3ms−18msHuman in the loop
Approve plans, answer structured questions, gate dangerous tools, and track every task in real time.
Instead of guessing, the agent asks structured multiple-choice questions with descriptions, previews, and recommended options, so decisions are fast and unambiguous.
Fine-grained allow/deny rules for tools and commands. Keep dangerous operations gated while letting safe ones run automatically. Your workspace, your rules.
read_file
✓edit_file
✕bash: rm -rf
A real-time checklist with pending → in-progress → completed states and dependency tracking. Always know what's done, what's running, and what's blocked.
Plasma runs on Pi, an open, extensible engine for coding agents. One core, infinite extensibility.
Download
Plasma runs on the desktop and is controllable from mobile. Pick your platform.
Install Plasma and run your first autonomous session in under two minutes.