cx — Claude Code Extensions

The missing feature flags for Claude Code. Run cx instead of claude to get a real message queue, always-visible context usage, auto-named chats, quiet mode, and 25+ other toggles. Your claude install stays untouched.

Why cx?

Claude Code is great. But some things can't be configured with settings alone:

• Real message queue — Claude Code's default Enter steers mid-response, injecting your message into the current turn. Ctrl+Q instead buffers it as a true queued message that runs only after the current turn finishes.
• Persistent max effort — Claude resets effort level every session. cx saves "max" to settings so you don't have to /model it back every time.
• See your pasted text — Voice dictation and large pastes get collapsed into [Pasted text #N] which hides what you actually said. cx shows it inline so you can verify what was sent.
• No attribution — No more Co-authored-by: Claude in your commits and PRs.
• Swap Enter / Option+Enter — Enter inserts a newline, Option+Enter submits. Essential if you're on SSH, a non-English keyboard, or just prefer multiline-first input.
• Context usage, always visible — Percentage in the footer from message one, not just when you're about to run out.
• Auto-named chats — Your first message gets turned into a real title, so /resume and your terminal tab show something useful instead of a wall of "Untitled". No /rename required.
• Remote control on by default — Every new window joins Remote Control automatically. No more realizing ten minutes in that you forgot to toggle it on.
• Auto theme — First-run default is auto instead of dark, so Claude matches your terminal background out of the box. Flip to light at 9am and the TUI follows (#2990).
• Delete sessions from /resume — Opt+D on a focused session stages a confirm; second Opt+D wipes the transcript and its sidecar state. No more dropping to the shell to prune old sessions (#13514).
• Quiet mode — No spinner tips, no feedback surveys, no npm-to-native-installer nag.

19 patches total, 17 enabled by default. Toggle any combination on or off.

Install

npm install -g claude-code-extensions

Requires Claude Code installed globally (npm i -g @anthropic-ai/claude-code).

Quick start

cx          # launch patched Claude Code
cx-setup    # interactive TUI to toggle patches on/off

On first run, cx opens the setup TUI automatically. After that, just run cx — it caches the patched bundle and only re-transforms when patches change or Claude Code updates.

All claude arguments pass through: cx --model sonnet -p "hello" works exactly like claude --model sonnet -p "hello".

Patches

| Patch | Description | Default | |---|---|:---:| | queue | Ctrl+Q true message queue — buffer instructions to run after the current turn (vs. Enter, which steers mid-response) | on | | always-show-thinking | Show thinking block content inline | on | | show-file-in-collapsed-read | Show file paths in collapsed tool display | on | | disable-paste-collapse | Show pasted text inline instead of collapsing | on | | persist-max-effort | Save "max" effort to settings so it survives restarts | on | | reload | Ctrl+X Ctrl+R hot reload — re-applies patches, keeps conversation | on | | no-tips | Hide spinner tips | on | | no-feedback | Remove feedback survey prompts | on | | no-npm-warning | Suppress the npm-to-native-installer nag | on | | no-attribution | Strip Claude Code attribution from commits and PRs | on | | disable-telemetry | Strip Datadog and analytics calls | on | | random-clawd | Randomize the Clawd mascot color on startup | on | | cx-badge | Show a persistent "cx" indicator in the prompt footer | on | | cx-resume-commands | Show cx instead of claude in resume hints | on | | cd-command | /cd <path> — change working directory for bash commands | on | | auto-detect-theme | Default theme to auto so it matches your terminal background on first run | on | | delete-sessions | Opt+D in /resume deletes the focused session (second Opt+D confirms) | on | | swap-enter-submit | Enter inserts newline, Option+Enter submits | off | | simple-spinner | Replace spinner verb cycling with static "working" | off |

Hot reload

While Claude is running, type:

! cx reload

or press Ctrl+X Ctrl+R. The session restarts with fresh patches applied and your conversation resumes via --continue.

How it works

1. cx locates your global @anthropic-ai/claude-code/cli.js
2. Parses the ~4MB minified bundle into an AST with acorn
3. Each enabled patch finds its target via structural queries and splices in changes
4. The patched source is cached, so subsequent launches are instant
5. cx spawns Node on the cached bundle with your original arguments

Patches are pure AST transforms. They don't monkey-patch at runtime, don't wrap modules, and don't touch the original file on disk.

Contributing

See CONTRIBUTING.md for development setup, patch authoring guide, and project structure.

License

MIT