Real AI agent use cases, with sources and setup prompts

Watch what all your coding agents are doing from the Mac menu bar

He built Loom, a native macOS menu-bar monitor showing what Codex, Claude Code and Antigravity sessions are doing right now.

$17/moDaysIntermediateSource linked

Source

@ChaiWithCodeHQ on X · 2026-10-20

Written in our own words. Credit to the original author. Link checked 2026-10-20.

What they did

He built Loom, a native macOS menu-bar monitor showing what Codex, Claude Code and Antigravity sessions are doing right now.

Result (as claimed)

Free, local-first, read-only and MIT open source.

Tools they used

Cost: OpenAI Codex: free plan, paid from $8/mo; 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 OpenAI Codex, Claude Code, Antigravity, macOS. 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: Watch what all your coding agents are doing from the Mac menu bar
What the original author did: He built Loom, a native macOS menu-bar monitor showing what Codex, Claude Code and Antigravity sessions are doing right now.
Reported result (as claimed by the author): Free, local-first, read-only and MIT open source.
Source: https://x.com/ChaiWithCodeHQ/status/2112618070321643928
Tools they used: OpenAI Codex, Claude Code, Antigravity, macOS
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 run multiple coding agents together · How to vibe code an app with Claude Code · How to use Claude Code and Codex together · How to build with Gemini 4 Argon and Gemini agents

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