Three Modes.
For Every Kind of Work.
From autonomous execution to full multi-agent parallelism — choose how Cosine works, and switch any time with Shift+Tab.
Auto
Executes all actions without confirmation. Cosine runs until the task is complete.
Plan
Read-only exploration — Cosine maps out every change before touching a single file.
Swarm
Multi-agent orchestration. Parallel agents across your repo — one task or twenty.
Auto
Executes all actions without confirmation. Cosine runs until the task is complete.
Plan
Read-only exploration — Cosine maps out every change before touching a single file.
Swarm
Multi-agent orchestration. Parallel agents across your repo — one task or twenty.
Built for How You Actually Work.
Add auth middleware
Update user schema
Fix token refresh bug
Checkpointing
Every agent turn is a lightweight git commit. Undo any change instantly — nothing is permanent until you say it is.
Todo Tracking
Cosine builds and maintains a live task list for every complex job. Watch items tick from pending to done in real time.
Memory
Project conventions, architecture decisions, and hard-won context persist across sessions. You never repeat yourself.
MCP
Connect any external tool — GitHub, databases, Slack, file systems — via Model Context Protocol. Cosine calls them on your behalf.
LSP
Auto-installed language servers give Cosine IDE-grade intelligence — go-to-definition, find references, rename, and live diagnostics.
worker 1
auth module
done
worker 2
api routes
running
worker 3
tests
queued
Sub-agents
In Swarm mode an orchestrator spawns specialised child agents that work in parallel — breaking down the task and executing simultaneously.
Remote Agents
Your TUI stays local while the agent runs in a Cosine cloud workspace. Stream tool calls and file edits back to your terminal in real time.
Your choice of intelligence
20+ frontier models. One interface. The model is the engine. The product is the car.
Change models mid-conversation. Use the right brain for the right job.
Connect Cosine
to everything.
Over 1,000 MCP servers available — GitHub, Slack, Jira, Linear, PostgreSQL, Stripe, and more. Connect your entire stack to Cosine with a single config file. New integrations added every week.
MCP docs