Clarvis ยท an Avengers fan mod for Claude Code

Your terminal just joined the team

Clarvis is a free, open-source Claude Code plugin (a mod). While Claude works, a rotating squad of pixel-art heroes animates above your prompt, with your tokens, cost and limits in plain view. When the work's done, they assemble.

/plugin install clarvis --marketplace shahsanket2107/clarvis

Paste it at the Claude Code prompt, press y, then Enter. Needs Claude Code 2.1.287 or later.

The Clarvis band above the Claude Code prompt: a hero animates on a 3D stage while a live log of Claude's actions ticks by, then the team assembles when the task is done.
The working band: a hero on a 3D stage, the tool Claude is using, a typed line of dialogue and the mission log

A new hero every 8 seconds, each with their own lines about your code.

The Stark Arcade title screen with five games

Five arcade games, playable in a pane while Claude works.

The /clarvis stats mission report with tokens, cache hit rate, cost and rate limits

Your tokens and spend, always on screen.

The comic theater's episode list

Ten comic episodes with panels, balloons and sound effects.

The full-width moment that plays when a task finishes

Finish a task, and the team assembles with your time, actions and cost.

Install in a minute

  1. Open Claude Code in your terminal. Check you're on 2.1.287 or later with claude --version.
  2. At the prompt, paste /plugin install clarvis --marketplace shahsanket2107/clarvis.
  3. Press y to add the marketplace, then Enter to install for your user. The band appears right away.
  4. For the arcade and theater, type /tui fullscreen once, then /clarvis play or /clarvis movies.

Built to stay out of your way

It only watches and draws
It never changes a tool call, a prompt or a permission decision.
Nothing leaves your machine
No network calls, no tracking, no processes, no reading your files.
Free when idle
Frames repaint only while something moves. At rest it does nothing.
Your choice of volume
/clarvis calm keeps the art and drops the motion. /clarvis off brings back the stock look.

Commands

/clarvis            the briefing
/clarvis stats      tokens, cache, cost, limits
/clarvis play       the arcade
/clarvis movies     the theater
/clarvis calm       no motion
/clarvis off        stock Claude Code

Questions

What is Clarvis?
Clarvis is a free, open-source Claude Code plugin, a mod, that draws an Avengers-themed heads-up display above the Claude Code prompt: rotating pixel-art heroes while Claude works, live token, cache and cost tracking, a pixel arcade and a comic theater.
How do I install Clarvis in Claude Code?
At the Claude Code prompt, run /plugin install clarvis --marketplace shahsanket2107/clarvis, press y to add the marketplace, then Enter. It needs Claude Code 2.1.287 or later.
Does Clarvis track Claude Code token usage and cost?
Yes. The band shows context used, tokens in and out, cache hit rate, the session's cost and your 5-hour rate limit, and /clarvis stats prints a full usage report with lifetime totals.
Does Clarvis send any data anywhere?
No. It makes no network requests, has no analytics, and never changes a tool call, a prompt or a permission decision. It only watches and draws.
Is Clarvis an official Marvel or Anthropic product?
No. Clarvis is an unofficial, non-commercial fan project. It isn't made, licensed or endorsed by Marvel, Disney or Anthropic, and all of its art is original.