What is cache-tax?
cache-tax is a Claude Code mod by cGradying that a Claude Code mod that keeps the one-hour prompt cache warm during breaks and stops a cold send once with its estimated rewrite cost. Warming uses model requests and costs tokens. Requires. It is listed under Cost & usage and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | cGradying |
| Repository | cGradying/claude-code-cockpit |
| Popularity | no public popularity data yet |
| Category | Cost & usage |
| Security | Review before installing (68/100) |
| Rank | #2,881 of 5,272 Claude Code mods; #496 in Cost & usage |
| Last commit | 2026-10-10 |
| Hooks | 9 events |
| Sees | classic hooks, compaction, every prompt |
| Draws on | AbovePrompt |
Is cache-tax safe to install?
cache-tax scores 68/100 on the MCPMods security check: Review before installing. Things to review: reads environment variables; watches every prompt or event. It passed 4 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 |
|---|---|
| No network access | Pass |
| Starts no processes | Pass |
| Writes no files or config | Pass |
| Reads environment variables | Review |
| Watches every prompt or event | Review |
| Drives Claude (model calls, prompts) | Note |
| Passes claude plugin validate | Pass |
| No license detected | Note |
API calls in its code
| Call | What it means |
|---|---|
$.clock.after | |
$.clock.now | |
$.command.list | |
$.command.register | |
$.config.list | |
$.env.get | reads env vars |
$.model.fork | drives Claude |
$.session.id | |
$.session.model | |
$.session.usage | |
$.store.delete | keeps its own state |
$.store.get | keeps its own state |
$.store.set | keeps its own state |
$.ui.invalidate | draws interface |
$.ui.log | draws interface |
$.ui.resolve | draws interface |
$.ui.status | draws interface |
How do I install cache-tax?
- 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/cGradying/claude-code-cockpit claude plugin validate ./claude-code-cockpit/cache-tax
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add cGradying/claude-code-cockpit && claude plugin install cache-tax@janvin-mods
Or ask Claude to set it up
Paste this into Claude Code and it installs cache-tax for you:
Install the "cache-tax" Claude Code mod from https://github.com/cGradying/claude-code-cockpit/tree/main/cache-tax. Run claude plugin validate on it first and show me what it can access before you enable it.
More from cGradying/claude-code-cockpit
This repository has at least 9 Claude Code mods on MCPMods.
- blast-radius: Holds risky shell commands (rm -rf, git reset --hard, git clean, force push, migrations) and shows what they would chang (Low risk)
- cockpit: A one-line band above the prompt and a roomy Cockpit panel (prompt-cache countdown, context, plan limits, cost, next tas (High risk)
- filetree: An IDE-style file tree for Claude Code that shows what Claude is doing and where in files (Review before installing)
- polish: Cleans up dictated prompts with Haiku: drops the ums, false starts and spoken punctuation, and spells your jargon right. (Low risk)
- reflect-mod: claude-reflect as a Claude Code mod: a model check on each short prompt finds reusable corrections (any language); a ban (High risk)
- replay-theater: Replay Theater: step through the file edits Claude made in the last turn, one diff at a time. (Low risk)
- savvy-progress: Progress bar above the prompt for /savvy-flow, plus an agents panel (/agents-info): running, finished and planned subage (Low risk)
- skins: Skins for Claude Code's transcript: themed tool rows, reply gutters and spinner words. /skin swaps them live. (Review before installing)