cache-guard
by Agulhas Labs · ★ 0 · updated yesterday
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.
Install
/plugin marketplace add Agulhas-Labs/claude-plugins/plugin install cache-guard@agulhas-labsThen run /reload-plugins or start a new session. Requires Claude Code 2.1.287+.
What it hooks into
From an automated scan with claude plugin validate, not a security review. Mods run with your permissions; read the code before installing.
- Events
classic.SessionStartclassic.UserPromptSubmitturn.completetool.callui.rendersession.startprompt.submit- API calls
$.clock.every$.clock.now$.fs.read$.process.run$.prompt.fill$.session.usage$.store.get$.store.set$.ui.invalidate$.ui.resolve$.ui.toast- Draws
AbovePrompt- Can see
classic hooksevery tool callevery prompt- Reach
- level 2 of 3 runs processeswrites the prompt boxreads filespersists statedraws
Origin
- How it got here
- Automated scan of public GitHub repos, via the CC0 dataset awesome-claude-code-mods (scan of ).
- Repository
- github.com/Agulhas-Labs/claude-plugins
- Path in repo
plugins/cache-guard- Source commit
e326e36the exact code the scan read- Author
- Agulhas Labs @Agulhas-Labs
- License
- Apache-2.0
- First published
- Last pushed
- First listed here
Name and description come from the mod's own manifest. We link to the code; we don't host it, and it stays under its author's license.
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logbook
Agulhas-Labs/claude-plugins
Keeps a live local page for a long Claude Code task: what needs you, what was built, what was verified, and what was decided without you. Hooks record it without spending model tokens, the page follows light, dark or your system's setting, and when the task ends the same page is the report.