Claude Code mod
cache-meter
Gauges how long the conversation's prompt cache stays warm, its hit ratio and misses, and what the next message re-caches once it has gone cold
Install
/plugin marketplace add HolyGrail/claude-mods
/plugin install cache-meter@claude-modsMods install like plugins. Run /reload-plugins or start a new session to load it.
What it can access
- Reach
- L1Reads: reads env vars, reads settings, requests an Anthropic credential handle, draws
- Sees
- classic hooks
- Draws in
AbovePrompt- Hooks
session.startsession.endsession.measureturn.stepclassic.PostModelSwitchclassic.SessionStartui.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.
Details
- Repository
- HolyGrail/claude-mods
- Folder
plugins/cache-meter- Marketplace
claude-mods- Author
- HolyGrail
- Last updated
- 20 October 2026
- Listed in
- awesome-claude-code-mods
FAQ
What is cache-meter?
Gauges how long the conversation's prompt cache stays warm, its hit ratio and misses, and what the next message re-caches once it has gone cold It is a mod for Claude Code, from HolyGrail/claude-mods on GitHub.
What can the cache-meter mod access?
Its widest reach is "reads" (reads env vars, reads settings, requests an Anthropic credential handle, draws). It sees classic hooks. It draws in AbovePrompt. Like any mod, it runs with your permissions.
How do I install cache-meter?
Inside Claude Code (v2.1.287 or later), run /plugin marketplace add HolyGrail/claude-mods and then /plugin install cache-meter@claude-mods.
Is cache-meter popular?
HolyGrail/claude-mods has 19 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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