What is catalyst-statusline?
catalyst-statusline is a Claude Code mod by TransmuteLabs that multi-line status HUD above the prompt over data families (hooks/data/*.ts pure collectors, one core subscription per event), with the /statusline-mod pill panel: live preview, six tabs. It is listed under Interface and has 3 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | TransmuteLabs |
| Repository | TransmuteLabs/Catalyst |
| Popularity | 3 GitHub stars |
| Category | Interface |
| Security | High risk (56/100) |
| Rank | #1,031 of 5,272 Claude Code mods; #402 in Interface |
| Last commit | 2026-10-06 |
| Hooks | 16 events |
| Sees | classic hooks, compaction, every tool call, subagent spawns |
| Draws on | any component |
Is catalyst-statusline safe to install?
catalyst-statusline scores 56/100 on the MCPMods security check: High risk. Things to review: starts processes outside the sandbox; writes files or config; reads environment variables. It passed 3 of 8 checks.
Mod footprints come from claude plugin validate, which lists every event a mod hooks and every API call it makes without running it.
| Check | Result |
|---|---|
| No network access | Pass |
| Starts processes outside the sandbox | Review |
| Writes files or config | Review |
| Reads environment variables | Review |
| Only sees the events it hooks | Pass |
| Doesn't drive Claude | Pass |
| Validator reported problems | Note |
| No license detected | Note |
API calls in its code
| Call | What it means |
|---|---|
$.clock.after | |
$.clock.every | |
$.clock.now | |
$.clock.sleep | |
$.command.register | |
$.config.list | |
$.config.set | changes config |
$.env.get | reads env vars |
$.fs.read | reads files |
$.process.run | runs processes |
$.session.cwd | |
$.session.id | |
$.session.messages | reads the transcript |
$.session.model | |
$.session.repo | |
$.session.root | |
$.session.surfaces | |
$.session.turns | |
$.session.usage | |
$.store.delete | keeps its own state |
How do I install catalyst-statusline?
- Check your Claude Code version. Mods need Claude Code 2.1.287 or later and are on by default.
claude --version
- Read its footprint. This lists every event it hooks and every API call it makes, without running it.
git clone https://github.com/TransmuteLabs/Catalyst claude plugin validate ./Catalyst/plugins/catalyst-statusline
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add TransmuteLabs/Catalyst && claude plugin install catalyst-statusline@catalyst
Or ask Claude to set it up
Paste this into Claude Code and it installs catalyst-statusline for you:
Install the "catalyst-statusline" Claude Code mod from https://github.com/TransmuteLabs/Catalyst/tree/main/plugins/catalyst-statusline. Run claude plugin validate on it first and show me what it can access before you enable it.
More from TransmuteLabs/Catalyst
This repository has 4 Claude Code mods on MCPMods.
- catalyst-probes: Consultation and prompt engine for Claude Mods. The module is the core; [probe.] tables in probes.toml are the consultan (High risk)
- catalyst-refusal-watch: Makes every response the service filter stopped visible at once and adds a rule: report it, do not drop work silently. (Low risk)
- catalyst-swe-request: Request-text policy for devin/swe-2: registers one rule in the host's $.requestText noun. (Low risk)