Use spare AI quota to draft reviewable PRs
A founder pointed an agent at goals and task lists so it could turn leftover Claude and Codex quota into pull requests for review.
ClaudeCodex
Agent Uses · 1,321 real examples
Codex use cases
Real examples of people putting Codex to work: the task, how it went, what to watch out for, and a prompt you can adapt.
The day's AI news plus 3 agent uses you can try, with ready-to-paste prompts. Free; unsubscribe anytime.
Ask Slack to sort out flight dates
Dots was linked to Slack and asked to compare flight dates, but it was still working on them after a minute.
DotsCodex
Use an agent to patch a stubborn app bug
They pointed a coding agent at two annoying software behaviors and had it debug one and add a self-improvement feature to the other.
CodexChatGPT
Create a protected 11-agent trading prep setup
A trader used 11 Grok Bot agents to split up swing-trading prep, with one review agent blocking any idea until it passed inspection.
Grok BotClaudeCodex
Use Codex to shape game architecture and animation blending
A game builder had Codex handle core architecture and improve animation transitions by reading engine docs and wiring in merging logic.
Codex
Monitor account caps and move chats across tools
teivz built a local app that watches Codex and Claude Code account usage and shifts a chat to another account when one reaches its cap.
CodexClaude Code
Use MCP to query Gmail and Outlook mailboxes
A developer built a cloud email analysis system that lets LLMs pull answers from Gmail and Outlook through MCP.
CursorCodexClaude Code
Triage email by voice while you walk
Use voice commands to sort email, draft replies, and capture follow-ups while you are away from your desk.
Codex
Build a solo business workflow with 16 agents
A founder used about 16 Claude and Codex agents to keep a side business moving while working a full-time job.
Claude CodeCodex
Use Codex to summarize Logseq journals from the CLI
They used Codex with the Logseq CLI docs to query a note graph and turn months of journals and tagged pages into summaries.
Codex
Create and launch a BaZi reading agent
A developer used coding agents to build a BaZi reader that calculates charts, writes interpretations, and handles language detection and USDT payments.
Codex
Scan eBay for underpriced Pokémon cards overnight
An engineer used Codex to watch eBay listings, pull PSA certificate numbers, and compare them with known prices while they slept.
Codex
Use a coding agent to fix a Slack-reported bug
A Codex agent handled a Slack issue on its own, and an ops agent later confirmed the fix in the same thread.
Codex
Render a video, then post it in Slack manually
When Slack upload support failed, an agent revised the video, re-rendered it, and finished the post with Computer Use.
Codex
Cancel an Amazon subscription and request a refund
Codex cancelled an Amazon subscription, then used Amazon support to get back $15 immediately.
Codex
Set up an always-on company task agent
They built a self-running agent that acts like a company employee and uses long context, a diary, and markdown files to stay oriented.
CodexChatGPT
Build a dinner-planning app from pantry and weather data
A non-coder used Codex to make a local meal-planning app that draws on kitchen stock, garden harvests, dietary limits, appliances, and the forecast.
Codex
Build a browser racing game from one prompt
A lone agent turned one prompt into a playable kart racer, then kept testing and fixing it while acting as designer, developer, and QA.
Codex
Use Codex to troubleshoot your Home Assistant config
A Home Assistant add-on and integration let Codex inspect config files, fix automations, and update dashboards from scripts or Assist.
Codex
Use Codex to fill forms and check tax papers
OpenAI staff used Codex computer use to work through forms, PDFs, and one tax filing review that found a costly mistake in the user’s favor.
Codex
Run agent coding jobs in a sealed local box
A developer used Codex to run an almost fully self-contained build-and-deploy workflow on a locked-down spare machine.
Codex
Build a robot arm CAD package from a single request
A text-to-CAD setup turned one prompt into a multi-part robot arm model with motion logic, a viewer, and export files.
CodexClaude Code
Turn transcripts and documents into finished files with Codex
A guide used Codex to draft a transcript summary, assemble an Excel revenue model, and create carousel images from a document.
Codex
Score prospects and prepare follow-up materials
Codex sorted Salesforce accounts, made a 13-slide plan, and left email drafts in Gmail for review.
Codex