Claude Code mod
cost-guard
Holds a message that would cost more than your token or dollar limit (cold prompt cache or a very large message), explains why, and asks before sending. Can also keep the cache warm during a break.
Install
/plugin marketplace add tgralex/claude-mods
/plugin install cost-guard@claude-modsMods install like plugins. Run /reload-plugins or start a new session to load it.
What it can access
- Reach
- L2Writes or runs: drives Claude, writes the prompt box, reads env vars, reads settings, reads mod state, persists state, draws
- Sees
- every prompt
- Draws in
AbovePrompt- Hooks
session.startsession.measureturn.startturn.completeprompt.submitcommand.runui.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
- tgralex/claude-mods
- Folder
mods/cost-guard- Marketplace
claude-mods- Author
- Tigran Aleksanyan
- Last updated
- 14 October 2026
- Listed in
- awesome-claude-code-mods
FAQ
What is cost-guard?
Holds a message that would cost more than your token or dollar limit (cold prompt cache or a very large message), explains why, and asks before sending. Can also keep the cache warm during a break. It is a mod for Claude Code, from tgralex/claude-mods on GitHub.
What can the cost-guard mod access?
Its widest reach is "writes or runs" (drives Claude, writes the prompt box, reads env vars, reads settings, reads mod state, persists state, draws). It sees every prompt. It draws in AbovePrompt. Like any mod, it runs with your permissions.
How do I install cost-guard?
Inside Claude Code (v2.1.287 or later), run /plugin marketplace add tgralex/claude-mods and then /plugin install cost-guard@claude-mods.
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