Real AI agent use cases, with sources and setup prompts

Give your coding agent an open-source product manager

productfoo is an open-source CLI that runs cited market research, challenges your idea, writes the pitch, sharpens the spec, and checks that what the agent built matches what you agreed. It works with Claude Code.

$17/mo15 minutesBeginnerSource linked

Source

@rachelwolan on X · 2026-10-18

Written in our own words. Credit to the original author. Link checked 2026-10-18.

What they did

productfoo is an open-source CLI that runs cited market research, challenges your idea, writes the pitch, sharpens the spec, and checks that what the agent built matches what you agreed. It works with Claude Code.

Result (as claimed)

Open source; shared by the builder.

Tools they used

Claude Code

Cost: 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 Claude Code. 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: Give your coding agent an open-source product manager
What the original author did: productfoo is an open-source CLI that runs cited market research, challenges your idea, writes the pitch, sharpens the spec, and checks that what the agent built matches what you agreed. It works with Claude Code.
Reported result (as claimed by the author): Open source; shared by the builder.
Source: https://x.com/rachelwolan/status/2111835600597012549
Tools they used: Claude Code
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 vibe code an app with Claude Code

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