Claude Code mod
prime-ctbar
Context window breakdown and prompt-cache countdown above the prompt with interactive compact button; /prime-ctbar (or /ctbar) toggles it.
Install
/plugin marketplace add settanun-prime/prime-studio-mods
/plugin install prime-ctbar@prime-studio-modsMods install like plugins. Run /reload-plugins or start a new session to load it.
What it can access
- Reach
- L2Writes or runs: drives Claude, reads mod state, draws
- Sees
- compaction, every prompt
- Draws in
AbovePrompt- Hooks
session.compactsession.appendsession.startprompt.submitturn.completecommand.runui.render
From a static scan of the mod's code by awesome-claude-code-mods. It shows what the code asks for, not a security review.
How Claude Code mods work
- A mod is a plugin with a JavaScript or TypeScript module that runs inside Claude Code (version 2.1.287 or later). It can draw panes beside the transcript, a band above the prompt, buttons and toasts, restyle the spinner and tool rows, and watch or rewrite tool calls and prompts.
- It installs like any plugin: add its marketplace with /plugin marketplace add owner/repo, then /plugin install name@marketplace.
- Check what a mod can reach before installing: it runs with your permissions. Reach goes from drawing only, to reading files, to writing files or running processes, to the network. Run claude plugin validate on a clone to list its hooks and calls without running it.
- Turn one off from the Installed tab in /plugin, or start Claude Code with --safe-mode to skip every customization for a session.
Details
- Repository
- settanun-prime/prime-studio-mods
- Folder
prime-ctbar- Marketplace
prime-studio-mods- Author
- settanun-prime (Prime Studio)
- License
- MIT
- Last updated
- 29 October 2026
- Listed in
- awesome-claude-code-mods
FAQ
What is prime-ctbar?
Context window breakdown and prompt-cache countdown above the prompt with interactive compact button; /prime-ctbar (or /ctbar) toggles it. It is a mod for Claude Code, from settanun-prime/prime-studio-mods on GitHub.
What can the prime-ctbar mod access?
Its widest reach is "writes or runs" (drives Claude, reads mod state, draws). It sees compaction, every prompt. It draws in AbovePrompt. Like any mod, it runs with your permissions.
How do I install prime-ctbar?
Inside Claude Code (v2.1.287 or later), run /plugin marketplace add settanun-prime/prime-studio-mods and then /plugin install prime-ctbar@prime-studio-mods.
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