Claude Code mod

cache-guard

Warns once before a message that will cost far more than usual: a large Claude Code context whose prompt cache has expired, or a model or effort change that resets it. Shows the estimated cost, and offers a handoff file written by a cheap model in the background so you can /clear instead. While background work runs, it wakes an idle session just before its cache expires, so the result lands on a warm cache.

2 starsContext & usage mods Plugin marketplaceIn Anthropic's plugin directoryValidates on Claude Code 2.1.316 Source

Install

Inside Claude Code
/plugin marketplace add Agulhas-Labs/claude-plugins
/plugin install cache-guard@agulhas-labs

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, writes the prompt box, reads files, persists state, draws
Sees
classic hooks, every tool call, every prompt
Draws in
AbovePrompt
Hooks
session.endclassic.SessionStartclassic.UserPromptSubmitturn.completetool.callui.rendersession.startprompt.submit

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
Agulhas-Labs/claude-plugins
Folder
plugins/cache-guard
Marketplace
agulhas-labs
Author
Agulhas Labs
Type
Context & usage mods
License
Apache-2.0
Last updated
20 October 2026
Listed in
awesome-claude-code-mods

FAQ

What is cache-guard?

Warns once before a message that will cost far more than usual: a large Claude Code context whose prompt cache has expired, or a model or effort change that resets it. Shows the estimated cost, and offers a handoff file written by a cheap model in the background so you can /clear instead. While background work runs, it wakes an idle session just before its cache expires, so the result lands on a warm cache. It is a mod for Claude Code, from Agulhas-Labs/claude-plugins on GitHub.

What can the cache-guard mod access?

Its widest reach is "writes or runs" (runs processes, writes the prompt box, reads files, persists state, draws). It sees classic hooks, every tool call, every prompt. It draws in AbovePrompt. Like any mod, it runs with your permissions.

How do I install cache-guard?

Inside Claude Code (v2.1.287 or later), run /plugin marketplace add Agulhas-Labs/claude-plugins and then /plugin install cache-guard@agulhas-labs.

Is cache-guard popular?

Agulhas-Labs/claude-plugins has 2 GitHub stars and 0 forks, and is included in 1 curated Claude Code list. It was last updated on 20 October 2026.

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