What is spare-cycles?
spare-cycles is a Claude Code mod by m4cd4r4 that a timer that brings up a small task to do while Claude works. It is listed under Interface and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | m4cd4r4 |
| Repository | m4cd4r4/spare-cycles |
| Popularity | no public popularity data yet |
| Category | Interface |
| Security | Review before installing (64/100) |
| Rank | #3,885 of 5,272 Claude Code mods; #1,619 in Interface |
| License | MIT |
| Last commit | 2026-10-07 |
| Hooks | 2 events |
| Sees | every prompt |
| Draws on | nothing |
Is spare-cycles safe to install?
spare-cycles scores 64/100 on the MCPMods security check: Review before installing. Things to review: writes files or config; reads environment variables; watches every prompt or event. 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 no processes | Pass |
| Writes files or config | Review |
| Reads environment variables | Review |
| Watches every prompt or event | Review |
| 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.every | |
$.clock.now | |
$.env.get | reads env vars |
$.env.set | sets env vars |
$.fs.exists | reads files |
$.fs.read | reads files |
$.fs.write | writes files |
$.store.get | keeps its own state |
$.store.set | keeps its own state |
$.ui.log | draws interface |
$.ui.toast | draws interface |
How do I install spare-cycles?
- 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/m4cd4r4/spare-cycles claude plugin validate ./spare-cycles/plugin
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add m4cd4r4/spare-cycles && claude plugin install spare-cycles@spare-cycles
Or ask Claude to set it up
Paste this into Claude Code and it installs spare-cycles for you:
Install the "spare-cycles" Claude Code mod from https://github.com/m4cd4r4/spare-cycles/tree/main/plugin. Run claude plugin validate on it first and show me what it can access before you enable it.