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Protect your Claude Code usage window with a guard mod

agent-usage-guard is an open-source Claude Code mod that watches usage and stops runaway sessions from burning your limit window.

$17/mo5 minutesBeginnerSource linked

Source

zzyyxx332211 on Hacker News · 2026-10-22 · Project link

Written in our own words. Credit to the original author. Link checked 2026-10-22.

What they did

agent-usage-guard is an open-source Claude Code mod that watches usage and stops runaway sessions from burning your limit window.

Result (as claimed)

Open-sourced on GitHub; shared on Show HN.

Tools they used

Claude Code

Cost: Claude Code: from $17/mo.

Set it up

  1. Pick a contained repo or task

    Start on a branch or side project where mistakes are cheap.

  2. Install and configure

    Set up Claude Code. Read what it can run on your machine and limit permissions where possible.

  3. Run it on a real task

    Give it a well-scoped issue and let it work. Review the diff like any pull request.

  4. Add guardrails

    Keep tests and CI in the loop, and never let an agent push to main or touch production secrets unattended.

Copy the full setup prompt

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Goal: Protect your Claude Code usage window with a guard mod
What the original author did: agent-usage-guard is an open-source Claude Code mod that watches usage and stops runaway sessions from burning your limit window.
Reported result (as claimed by the author): Open-sourced on GitHub; shared on Show HN.
Source: https://news.ycombinator.com/item?id=50198936
Tools they used: Claude Code
Category: Dev & ops

Please:
1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like).
2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure.
3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data.
4. Finish with a checklist to run it again next time.

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Guides for this use case

How to vibe code an app with Claude Code · How to save, share and resume coding agent sessions · How to cut AI coding agent costs and token use

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