What is keepalive?
keepalive is a Claude Code mod by alexandernicholson that a prompt cache bar for every conversation, subagent and teammate, a dashboard with /keepalive, per-conversation cache TTLs, and upkeep that keeps an idle cache warm or compacts it before. It is listed under Cost & usage and has 7 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | alexandernicholson |
| Repository | alexandernicholson/agent-router |
| Popularity | 7 GitHub stars |
| Category | Cost & usage |
| Security | High risk (48/100) |
| Rank | #573 of 5,272 Claude Code mods; #103 in Cost & usage |
| License | MIT |
| Last commit | 2026-10-14 |
| Stars this week | +4 |
| Hooks | 12 events |
| Sees | classic hooks, compaction |
| Draws on | AbovePrompt, Pane |
Is keepalive safe to install?
keepalive 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 |
| Drives Claude (model calls, prompts) | Note |
| Passes claude plugin validate | Pass |
| Has an open-source license | Pass |
API calls in its code
| Call | What it means |
|---|---|
$.agent.list | |
$.clock.every | |
$.clock.now | |
$.clock.sleep | |
$.command.register | |
$.config.list | |
$.config.set | changes config |
$.env.get | reads env vars |
$.env.set | sets env vars |
$.http.fetch | network requests |
$.model.fork | drives Claude |
$.process.run | runs processes |
$.session.authorize | reads the transcript |
$.session.compact | drives Claude |
$.session.id | |
$.settings.read | reads settings |
$.store.delete | keeps its own state |
$.store.get | keeps its own state |
$.store.set | keeps its own state |
$.ui.close | draws interface |
$.ui.invalidate | draws interface |
$.ui.log | draws interface |
$.ui.open | draws interface |
$.ui.resolve | draws interface |
How do I install keepalive?
- 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/alexandernicholson/agent-router claude plugin validate ./agent-router/keepalive
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add alexandernicholson/agent-router && claude plugin install keepalive@agent-router-tools
Or ask Claude to set it up
Paste this into Claude Code and it installs keepalive for you:
Install the "keepalive" Claude Code mod from https://github.com/alexandernicholson/agent-router/tree/main/keepalive. Run claude plugin validate on it first and show me what it can access before you enable it.
More from alexandernicholson/agent-router
This repository has 2 Claude Code mods on MCPMods.
- agent-router: Choose a model and effort for five agent roles and for agent team teammates with /agent-models, and inspect routing and (Review before installing)