Claude Code mod

keepwarm

Idle-session guard for Claude Code's 1-hour prompt cache (macOS): about 50 idle minutes after the last turn of a large session it notifies you, optionally after a cache-read fork judges whether to compact, keep warm or leave it; every request and change it makes is audited. Derived from cache-tax (MIT, Karan Bansal).

Guard & safety mods Plugin marketplaceValidates on Claude Code 2.1.316 Source

Install

Inside Claude Code
/plugin marketplace add luwux/keepwarm
/plugin install keepwarm@keepwarm

Mods install like plugins. Run /reload-plugins or start a new session to load it.

What it can access

Reach
L2Writes or runs: runs processes, drives Claude, writes the clipboard, reads mod state, persists state, draws
Sees
classic hooks, ScheduleWakeup calls, Bash calls, mcp__keepwarm__keepwarm calls, every prompt, compaction
Draws in
PaneAbovePrompt
Hooks
session.startclassic.SessionStarttool.callclassic.Stopcommand.runprompt.submitturn.stepturn.completesession.compactui.closeui.render

From a static scan of the mod's code by awesome-claude-code-mods. It shows what the code asks for, not a security review.

How Claude Code mods work

  • A mod is a plugin with a JavaScript or TypeScript module that runs inside Claude Code (version 2.1.287 or later). It can draw panes beside the transcript, a band above the prompt, buttons and toasts, restyle the spinner and tool rows, and watch or rewrite tool calls and prompts.
  • It installs like any plugin: add its marketplace with /plugin marketplace add owner/repo, then /plugin install name@marketplace.
  • Check what a mod can reach before installing: it runs with your permissions. Reach goes from drawing only, to reading files, to writing files or running processes, to the network. Run claude plugin validate on a clone to list its hooks and calls without running it.
  • Turn one off from the Installed tab in /plugin, or start Claude Code with --safe-mode to skip every customization for a session.
Claude Code docs

Details

Repository
luwux/keepwarm
Folder
.
Marketplace
keepwarm
Author
luwux
Type
Guard & safety mods
License
MIT
Last updated
26 October 2026
Listed in
awesome-claude-code-mods

FAQ

What is keepwarm?

Idle-session guard for Claude Code's 1-hour prompt cache (macOS): about 50 idle minutes after the last turn of a large session it notifies you, optionally after a cache-read fork judges whether to compact, keep warm or leave it; every request and change it makes is audited. Derived from cache-tax (MIT, Karan Bansal). It is a mod for Claude Code, from luwux/keepwarm on GitHub.

What can the keepwarm mod access?

Its widest reach is "writes or runs" (runs processes, drives Claude, writes the clipboard, reads mod state, persists state, draws). It sees classic hooks, ScheduleWakeup calls, Bash calls, mcp__keepwarm__keepwarm calls, every prompt, compaction. It draws in Pane, AbovePrompt. Like any mod, it runs with your permissions.

How do I install keepwarm?

Inside Claude Code (v2.1.287 or later), run /plugin marketplace add luwux/keepwarm and then /plugin install keepwarm@keepwarm.

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