Comparison

Helicon vs Warp

Warp makes the terminal better: blocks, history, its own agent. Running Muse Code inside it is still a terminal session. Helicon is a purpose built client that indexes projects and sessions, renders diffs inline, queues approvals and reports cost, because those come from the Muse Code protocol rather than from the shell.

Last updated 17 October 2026 · Markdown version

At a glance

	Helicon	Warp	Checked
What it is	Muse Code protocol client	Terminal emulator with agent features	17 October 2026
Knows about Muse sessions	Yes, indexed and resumable	Recognizes Muse Code as a CLI agent	17 October 2026
Diffs	Rendered inline in the thread	Whatever the CLI prints. Warp's diff review covers its own agent	17 October 2026
Approvals	Protocol level queue	A prompt in the block
Cost	Per thread, day and model	Not available
Multi repo triage	Sidebar grouped by directory	Tabs and panes	17 October 2026
Billing	Existing Muse Code subscription	Warp plan for its own agent	17 October 2026

Helicon compared with Warp. The Checked column links the docs or changelog page behind each sourced row.

What each one is

Warp is a genuinely better terminal, and if the terminal is where you want to be then running muse inside it is a fine setup. Blocks make scrollback navigable and the command history is far better than a plain emulator.

Warp's 15 October 2026 changelog says it now recognizes Muse Code as a CLI agent, with session icons and rich input. What it lists stops there: nothing about which tool call is waiting on your approval or what a turn would have cost. Helicon knows those things because it reads the Muse Code Session Protocol directly.

Where they actually differ

Structure, not text

Helicon receives typed protocol events rather than parsing output, so sessions, turns, tool calls, approvals and usage are first class objects.

Resumption

Sessions are listed per project and resumable, including the ones you started in the terminal.

Background work under control

You can send a running tool call to the background, stop one, stop them all, cancel a workflow run, or skip and retry its agents.

Free

MIT licensed with no paid tier, running on the subscription you already have.

Choose Warp if

You want one place for all shell work, Muse Code included.
You like Warp's own agent and are happy paying for it.

Choose Helicon if

You want Muse Code sessions to be objects you can find again.
You want approvals and cost surfaced rather than printed.
You are running several threads and need to see which is blocked.

Can you use both?

Keep Warp as your terminal and open Helicon for the agent threads. Anything you start in Warp with muse shows up in Helicon's sidebar, so nothing is lost by switching between them.

Helicon is one Muse Code GUI of several, and that page lists the rest. Helicon is free and MIT licensed, and you can try Helicon in your browser on sample data before you install anything.

Frequently asked questions

Can I still use the terminal after installing Helicon?

Yes, and sessions you start there are discovered by the daemon and resumable in the app.

Does Helicon include a terminal?

Helicon shows the commands the agent runs and their output inside the thread. It is not a general purpose shell.

Does it work on Windows terminals?

Helicon runs Muse Code natively on Windows with PowerShell for shell commands, and uses Muse Code inside WSL2 with path translation when native is not installed.