Real AI agent use cases, with sources and setup prompts

Check from your menu bar whether your AI coding plan will last until it resets

Pacer is a macOS menu bar app that tracks how fast you are using Claude Code, Codex, Antigravity and Cursor plans, predicts whether usage will last until the reset, and suggests what to change if not.

See pricing page5 minBeginnerSource linked

Source

dkremsa on Hacker News · 2026-10-08 · Project link

Written in our own words. Credit to the original author. Link checked 2026-10-24.

What they did

Pacer is a macOS menu bar app that tracks how fast you are using Claude Code, Codex, Antigravity and Cursor plans, predicts whether usage will last until the reset, and suggests what to change if not.

Result (as claimed)

You see a looming limit before it stops you mid-task.

Tools they used

PacerClaude CodeCodexCursorAntigravity

Cost: Pricing depends on the tools you pick; check each official pricing page.

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 Pacer, Claude Code, Codex, Cursor, Antigravity. 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

Paste into your agent and it will walk you through the setup, asking before anything that sends, posts or spends.

You are helping me set up this AI use case end to end in Claude Code.

Goal: Check from your menu bar whether your AI coding plan will last until it resets
What the original author did: Pacer is a macOS menu bar app that tracks how fast you are using Claude Code, Codex, Antigravity and Cursor plans, predicts whether usage will last until the reset, and suggests what to change if not.
Reported result (as claimed by the author): You see a looming limit before it stops you mid-task.
Source: https://news.ycombinator.com/item?id=50001750
Tools they used: Pacer, Claude Code, Codex, Cursor, Antigravity
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 build a Mac menu bar app with AI · How to use Claude Code and Codex together · How to use Cursor agents and automations · How to build with Gemini 4 Argon and Gemini agents

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