usecases.shAgents people built themselves, lesser-known products, and ones the author did not name. 9 real use cases so far, most often for software & devops, science, security & hardware, home & life admin. Each links to its source and comes with a prompt to try.
9 use cases · 5 kinds of job · updated Oct 15, 2026
Two Cockroach Labs engineers ran a pipeline of role-playing Claude agents on their MOLT migration tool; Db2 support landed in under two days for $4,172 of tokens, against nine months for Oracle in 2024.
Prime Intellect had its Prime Agent orchestrate about 2,000 sub-agents over two weeks to port itself from TypeScript to Rust, then a three-day hill-climb made startup about 13x faster and cut memory by over 80 percent.
A developer writing as Info Inlet banned himself from typing application code for a month and shipped a small SaaS with auth, Stripe billing, a dashboard and a public API, logging nine points where the rule broke.
Earl Grey, a court operations manager who does not type code, had Kiro build and Claude review a throwaway deploy of a civic agenda watcher; the spike found five wrong assumptions and a redaction control that never ran.
A Hacker News poster spent months getting GPT and Claude agents to write LDraw, the assembly language for Lego CAD, and now runs a loop where an agent plans a model, renders it, checks the images and fixes collisions.
anupray reverse-engineered the firmware of a 48 MB Nokia 110 4G and loaded a tiny custom agent that sends typed questions to DeepSeek and runs tool calls for the torch, alarm, battery and calls.
A Redditor's Home Assistant setup has Claude read the weekly kindergarten menu, suggest three child dinners a day that avoid lunch and recent meals, and turn missing ingredients into a shared shopping list.
Andon Labs handed real businesses to agents on its Pion platform: a vending machine at Anthropic turned profitable by late 2025, while a San Francisco store and a Stockholm cafe still lose money.
A solo iOS developer had a coding agent build a bilingual content pipeline, drive AI video tools and set up a Meta ad campaign that cut cost per thousand views from $8.20 to about $2.70.
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Meta
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