What is color-on-start?
color-on-start is a Claude Code mod by tomatoaiu that 新しいセッションが始まるときに /color を実行して、プロンプトバーの色を変える。. It is listed under Interface and has 1 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | tomatoaiu |
| Repository | tomatoaiu/color-on-start |
| Popularity | 1 GitHub stars |
| Category | Interface |
| Security | Low risk (100/100) |
| Rank | #2,332 of 5,272 Claude Code mods; #973 in Interface |
| License | MIT |
| Last commit | 2026-10-08 |
| Hooks | 2 events |
| Sees | classic hooks |
| Draws on | nothing |
Is color-on-start safe to install?
color-on-start scores 100/100 on the MCPMods security check: Low risk. No checks raised a concern. It passed 8 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 no processes | Pass |
| Writes no files or config | Pass |
| Doesn't read environment variables | Pass |
| Only sees the events it hooks | Pass |
| Doesn't drive Claude | Pass |
| Passes claude plugin validate | Pass |
| Has an open-source license | Pass |
API calls in its code
| Call | What it means |
|---|---|
$.command.run | drives Claude |
How do I install color-on-start?
- 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/tomatoaiu/color-on-start claude plugin validate ./color-on-start/.
- Install it. Run this in your terminal, then /reload-plugins in an open session.
git clone https://github.com/tomatoaiu/color-on-start && claude --plugin-dir ./color-on-start/.
Or ask Claude to set it up
Paste this into Claude Code and it installs color-on-start for you:
Install the "color-on-start" Claude Code mod from https://github.com/tomatoaiu/color-on-start. Run claude plugin validate on it first and show me what it can access before you enable it.