What is mermaid-live?
mermaid-live is a Claude Code mod by vivi-0124 that claude の応答が流れてくる途中から Mermaid で図解する Mod。図にすべきか・どの図か・もう描いていいかの判断だけを Jev（TypeSafe AI の System One モデル）に確率で聞き、Mermaid のソースは決定的に組み立てる。. It is listed under Interface and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | vivi-0124 |
| Repository | vivi-0124/me |
| Popularity | no public popularity data yet |
| Category | Interface |
| Security | High risk (48/100) |
| Rank | #5,078 of 5,272 Claude Code mods; #2,079 in Interface |
| Last commit | 2026-10-17 |
| Hooks | 3 events |
| Sees | only the events it hooks |
| Draws on | AbovePrompt |
Is mermaid-live safe to install?
mermaid-live scores 48/100 on the MCPMods security check: High risk. Things to review: sends data over the network; 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 |
|---|---|
| Sends data over the network | Review |
| 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 |
| Passes claude plugin validate | Pass |
| No license detected | Note |
API calls in its code
| Call | What it means |
|---|---|
$.clock.now | |
$.clock.sleep | |
$.env.get | reads env vars |
$.fs.write | writes files |
$.http.fetch | network requests |
$.process.run | runs processes |
$.ui.invalidate | draws interface |
$.ui.log | draws interface |
$.ui.resolve | draws interface |
How do I install mermaid-live?
- 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/vivi-0124/me claude plugin validate ./me/projects/mermaid-live
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add vivi-0124/me && claude plugin install mermaid-live@vivi-mods
Or ask Claude to set it up
Paste this into Claude Code and it installs mermaid-live for you:
Install the "mermaid-live" Claude Code mod from https://github.com/vivi-0124/me/tree/main/projects/mermaid-live. Run claude plugin validate on it first and show me what it can access before you enable it.