Agents In Use
Claude, in use.Anthropic’s Claude includes a chat assistant, Claude Code, a command-line coding agent, and Cowork for delegated desktop work with files and tools.
Maker: Anthropic
Writing, research, coding and desktop work.
news.ycombinator.comClaude Code coordinates implementation lanes, review and CI before a lander merges and deploys; the author handles decisions and periodically checks the product.
AddedClaudevia Claude Codenews.ycombinator.comClaude Code helped restore a PRQL PostgreSQL extension using upstream source inspection and existing tests; the maintainer then manually refactored it.
AddedClaudevia Claude Codenews.ycombinator.comThe author reports a Rust/Bevy sandbox running into the thousands of simulation agents. A 100,000-agent target remained unachieved, and the sandbox had no game objective.
AddedClaudenews.ycombinator.comThe report lists $3.12 per manual transaction versus $0.17 per batched transaction. The author cautions that realistic savings may be around 10–12x rather than the table’s 18.6x.
AddedClaudevia Claude Codenews.ycombinator.comSafronov reported an instant tax-file download at the library. Engye grew to support sending and collecting files, clipboard sharing and a virtual drive.
AddedClaudenews.ycombinator.comThe author reports a 1,529-line single HTML jam app with nine tracks, sequencer and keyjazz modes, mobile multi-touch and WebRTC audio, tested with two browsers and a phone.
AddedClaudevia Claude Opusnews.ycombinator.comClaude, Codex and Gemini helped build GWZ, a multi-repository workspace tool with familiar Git-style commands, recoverable state and an embeddable Rust core.
AddedClaudenews.ycombinator.comAn author generated a Rust desktop Indian-stock viewer in three days using Claude Code and OpenCode, with NSE report downloads and SQLite storage.
AddedClaudevia Claude Codenews.ycombinator.comA hobbyist used a photo, Claude-sourced product dimensions and repeated 3D prints to develop a Logitech Circle doorbell cover with ForgeCAD.
AddedClaudevia Claude with ForgeCADnews.ycombinator.comAn author built an incomplete UE5 shooter with Claude Code, using guidance and reversible Git commits while handling animation and mapping separately.
AddedClaudevia Claude Codenews.ycombinator.comAn author used Claude Code to improve an existing artist inventory app with pricing, exhibition details and proposal selection exports.
AddedClaudevia Claude Codenews.ycombinator.comA freelancer scopes parallel Claude Code sessions around selected rules, plan approval, code and UI review, tests and documentation updates.
AddedClaudevia Claude Codenews.ycombinator.comA local tracker connects Claude Code through MCP to extract job details, search missing salary information and modify the app during use.
AddedClaudevia Claude Codenews.ycombinator.comThe author and Claude Code built sixel.email for owner-only agent email and validated replies, then used inbox polling as a heartbeat to detect when the agent goes offline.
AddedClaudevia Claude Codenews.ycombinator.comA nontechnical founder manually mapped startups, moved a directory from Lovable to Claude Code, learned its data tools and supplied the simpler solution to a logo-loading performance problem.
AddedClaudevia Claude Codenews.ycombinator.comAn experienced developer used Claude Code to translate phonetics research into a Klatt-style synthesis runtime, retaining ownership of specifications, architecture and corrections to domain errors.
AddedClaudevia Claude Codenews.ycombinator.comThe author expanded Neuberg from 30 to 516 panels with Claude Code and reviewed and integrated the code. Most newly added panels use seeded or simulated data; the core 30 use real data.
AddedClaudevia Claude Codenews.ycombinator.comThe author and Claude Code ported Xonotic to browser-based WASM/WebGL2, moved the engine onto a worker, streamed compressed assets and tested direct WebRTC multiplayer across the Pacific.
AddedClaudevia Claude Codenews.ycombinator.comRemainderBot selects work from goals and task lists, uses spare Claude or Codex subscription quota, and presents results as GitHub PRs informed by comments and merge decisions.
AddedClaudevia Claude CLI via RemainderBotnews.ycombinator.comA developer used mostly Claude Opus 4.5 in agent mode to build Krypto Markets in under 48 hours, directing and reviewing work on live prices, charts, authentication and debugging.
AddedClaudenews.ycombinator.comA DevOps engineer reports building Artifact Keeper in about three weeks with Claude Code, keeping architectural control and running the resulting open-source registry at home.
AddedClaudevia Claude Codenews.ycombinator.comSonnet produced a minimal USB audio driver after the developer intervened in a thinking loop. Opus later identified pitfalls; changing audio settings still caused kernel panics.
AddedClaudenews.ycombinator.comBoth implementations remained incomplete. After reviewing four earlier reports, Astra and Opus both preferred the Opus implementation as the basis for further work.
AddedClaudevia Opus 5.5The author reports 562 merged PRs in two weeks, mostly for Sightline, and a custom-roles goal that ran for over a day with periodic check-ins.
AddedClaude