What is clef-verify?
clef-verify is a Claude Code mod by williamchen0606 that before Claude ends a turn that changed files, has Cloudflare's Clef decision model check that the work is shown to be done (tests run and passing where needed, claims backed by the steps,. It is listed under Interface and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | williamchen0606 |
| Repository | williamchen0606/claude-mods |
| Popularity | no public popularity data yet |
| Category | Interface |
| Security | Review before installing (76/100) |
| Rank | #5,131 of 5,272 Claude Code mods; #2,102 in Interface |
| License | MIT |
| Last commit | 2026-10-10 |
| Hooks | 1 events |
| Sees | classic hooks |
| Draws on | nothing |
Is clef-verify safe to install?
clef-verify scores 76/100 on the MCPMods security check: Review before installing. Things to review: sends data over the network; reads environment variables. It passed 6 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 no processes | Pass |
| Writes no files or config | Pass |
| Reads environment variables | Review |
| 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 |
|---|---|
$.clock.now | |
$.clock.sleep | |
$.env.get | reads env vars |
$.http.fetch | network requests |
$.session.messages | reads the transcript |
$.session.root | |
$.session.turns | |
$.state.get | |
$.state.set | |
$.ui.status | draws interface |
$.ui.toast | draws interface |
How do I install clef-verify?
- 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/williamchen0606/claude-mods claude plugin validate ./claude-mods/mods/clef-verify
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add williamchen0606/claude-mods && claude plugin install clef-verify@claude-mods
Or ask Claude to set it up
Paste this into Claude Code and it installs clef-verify for you:
Install the "clef-verify" Claude Code mod from https://github.com/williamchen0606/claude-mods/tree/main/mods/clef-verify. Run claude plugin validate on it first and show me what it can access before you enable it.
More from williamchen0606/claude-mods
This repository has 4 Claude Code mods on MCPMods.
- clef-guard: Has Cloudflare's Clef decision model judge each Bash, Write, Edit and WebFetch call (risk, kind of risk, whether it is r (Review before installing)
- desktop-statusline: A status line for the Claude desktop app: 5-hour and weekly limits with progress bars, context, cost, and how long the 5 (Low risk)
- image-preview: Preview images pasted into the prompt box, above the prompt, before you send them, and annotate them on macOS. (Low risk)