What is fno?
fno is a Claude Code mod by bllshttng that set a target and walk away. Say f[no] to mostly done. It is listed under Interface and has 2 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | bllshttng |
| Repository | bllshttng/footnote |
| Popularity | 2 GitHub stars |
| Category | Interface |
| Security | Review before installing (72/100) |
| Rank | #1,117 of 5,272 Claude Code mods; #428 in Interface |
| License | Apache-2.0 |
| Last commit | 2026-10-18 |
| Hooks | 4 events |
| Sees | only the events it hooks |
| Draws on | UserMessage, Pane |
Is fno safe to install?
fno scores 72/100 on the MCPMods security check: Review before installing. Things to review: starts processes outside the sandbox; reads environment variables. It passed 5 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 no files or config | Pass |
| Reads environment variables | Review |
| Only sees the events it hooks | Pass |
| Doesn't drive Claude | Pass |
| Validator reported problems | Note |
| Has an open-source license | Pass |
API calls in its code
| Call | What it means |
|---|---|
$.clock.every | |
$.clock.now | |
$.env.get | reads env vars |
$.process.run | runs processes |
$.session.version | |
$.ui.invalidate | draws interface |
$.ui.open | draws interface |
$.ui.panes | draws interface |
$.ui.resolve | draws interface |
How do I install fno?
- 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/bllshttng/footnote claude plugin validate ./footnote/.
- Install it. Run this in your terminal, then /reload-plugins in an open session.
git clone https://github.com/bllshttng/footnote && claude --plugin-dir ./footnote/.
Or ask Claude to set it up
Paste this into Claude Code and it installs fno for you:
Install the "fno" Claude Code mod from https://github.com/bllshttng/footnote. Run claude plugin validate on it first and show me what it can access before you enable it.
More from bllshttng/footnote
This repository has 2 Claude Code mods on MCPMods.
- buddy: A Claude Code mod (claude-mod-buddy). Bring back buddy: a terminal companion beside your status line that watches your w (Review before installing)