Spend leftover Claude and Codex quota on small pull requests
A founder built a bot that turns spare subscription tokens into pull requests for small tasks he never gets around to.
AI agent use cases: Coding
Real coding projects people built with AI agents, with recipes.
Use cases
Drive coding agents from Telegram and resume after usage limits
A developer built nightmux to control Claude Code agents from Telegram and auto-resume past usage limits overnight.
Run a fleet of coding agents like a teaching hospital
Two Cockroach Labs engineers turned GitHub issues into 'patients' handled by agent roles (triage nurse, fellow, reviewing attending, discharge nurse) and shipped production code for five months.
Decompile a classic shooter with a swarm of coding agents
Over three months, a developer and community helpers had up to 16 Claude Code and Codex agents rebuild an old first-person shooter as readable C++ that runs without noticeable bugs.
Let your agents draw arrows and boxes on your screen
A developer made a tool so coding agents can point at things on your screen with big arrows, boxes and text.
Make Claude’s replies half as long with a plugin
A developer annoyed by long, filler-heavy replies built a Claude Code plugin that cuts them.
Have Claude Code review your requirements against your roadmap
A developer found Claude Code more useful for reviewing requirements than writing them.
Cap spending before you let a coding agent spawn sub-agents
A developer reports that a simple UI review task in Codex spawned 826 child tasks and roughly $78,000 in usage without his approval.
Make Rust libraries faster by looping agents against benchmarks
A data scientist got agents to write Rust ML and utility crates that beat established libraries on speed by giving them benchmark targets and strict anti-cheating rules.
Catch conflicting plans between parallel coding agents before they merge
A team running several coding agents on one repo built a tool to catch intent conflicts Git cannot see.
Notice you no longer understand your own app, and go back to coding by hand
A solo developer who added features at breakneck speed with Claude realized he no longer understood his app.
Agree on PR rules before a teammate sends a 5,000-line vibe-coded PR
A developer wrote about his business partner sending a 5,000-line vibe-coded PR he had not tested.
Post a daily Sentry error digest to Slack with a Claude routine
A team runs a Claude routine with no internet except Slack and Sentry that compares errors to source code and posts a daily digest.
Debug user issues in minutes with Claude, observability and read-only DB access
A developer connects Claude to dash0, Linear and a read-only production database, and opened an MCP over their own GraphQL API.
Match 40 web pages pixel-perfect to Figma with Codex and the Figma MCP
Facing 40 pages to match to an inconsistent Figma file, a developer connected the Figma MCP to Codex, and it did the job.
Generate slide decks from a repo that warn when they drift from the code
A developer made a skill that turns a codebase into slides whose references carry line ranges and hashes.
Watch user sessions, find real bugs and open only verified fixes
A former Robinhood engineer built an open-source agent that investigates user-facing issues and opens a PR only when it can verify the fix.
Migrate 12-year-old .NET code to .NET 10 with Claude Code
A developer used Claude Code to move a 2014 TCP sockets project to .NET 10.
Pause your music when Claude Code needs you
A developer made Spotify pause whenever Claude Code needs input and resume when you answer.
The Daily 5.
Five real AI agent use cases each morning, each with a recipe and a source. Plus a Sunday roundup. Free.