Tools for product people who build with AI.

24 free prompts, skills and apps for Claude and ChatGPT. Some we built ourselves, the rest are made by other product people.

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Understand the customer

Interviews, feedback and research that turn into insight.

  • App

    Lyt

    Feedback on how you actually perform in your meetings: how much you talk, what you ask, and what you promise. Danish and English.

  • App

    Prompt cards

    44 ways to test an idea with AI before you build it. Every card has a ready prompt. Browse, filter, or print your own deck.

  • Prompt

    Pull themes, pain and quotes out of raw feedback, instead of reading 200 tickets by hand.

    Discovery

  • Prompt

    Get an interview guide built on The Mom Test: ask about the concrete past and actual behavior, not your idea, and learn to spot the questions that produce polite lies.

    Discovery

  • Only in the PDF

    Pull patterns, contradictions and quotes out of raw interview notes in minutes.

    Discovery

Prioritize and decide

Roadmaps, competitors and decisions that need to hold.

  • App

    Produktleder-testen

    Rate yourself on 10 product leadership competencies and get a profile you can save as a PDF. In Danish.

  • Prompt

    Get a skeptical sparring partner to find your weakest assumptions before you bet on them.

    Strategy

  • Prompt

    A pre-mortem in one minute. Find the failures before you build, not after.

    Strategy

  • Prompt

    Generate candidates and prioritize them with RICE, so you have a starting point to cut from.

    Strategy

  • Prompt

    Get a fast, structured overview of the landscape, and where there is a gap worth going after.

    Strategy

  • Skill

    An open repo that becomes your product brain in markdown: context, decisions and stakeholders in one place, and an AI coach that challenges your thinking before it helps with the doc. Works with Claude Code, Cursor and ChatGPT. By Andreas Kelm.

    By Andreas Kelm

Write the requirements

From raw notes to PRDs and user stories developers can use.

  • Prompt

    Find the holes in a spec before the developers do, with a skeptical product partner.

    PRD

  • Prompt

    Turn scattered notes, Slack threads and requests into a first draft of a Product Requirements Document you can edit.

    PRD

  • Prompt

    Break a feature down into user stories with clear acceptance criteria, ready for development.

    PRD

Build and test

Prototypes, code and tests, even if you're not a developer.

  • App

    Point

    Take a screenshot, draw on it, hit Enter. The image lands in your Claude, ChatGPT or Cursor chat, and the model can see the line. Free, for Mac.

  • Prompt

    Let AI generate test cases from your product, so you catch bugs without a dedicated QA tool.

    QA

  • Skill

    Say "read this aloud", and Claude strips the markdown, code blocks and URLs out of whatever you are looking at and speaks the prose in a native Danish voice. Built for proofreading by ear: an essay that reads fine on screen often falls apart when you hear it. The voice picker works for any language, but the skill was written for Danish. macOS only.

    Build

  • Prompt

    Turn a PRD into a sharp build prompt you can hand to Lovable, v0 or Cursor.

    Build

  • Instruction file

    A standing instruction that turns your AI into a technical sparring partner who pushes back and drives the build. From my blog post.

    Build

  • Skill

    The skills framework I use the most. It forces the AI through a disciplined process: idea → spec → plan → execution, with TDD and debugging built in. Created by Jesse Vincent (obra).

    By Jesse Vincent

  • Skill

    An open skills framework for Claude Code/Cowork built on classic PM methods. The PM counterpart to superpowers. By Dean Peters.

    By Dean Peters

  • Skill

    Gives Claude a searchable design database: 50+ UI styles, 97 color palettes, 57 font pairings, 99 UX guidelines and 25 chart types. For the non-technical builder who wants something that does not look like default AI slop.

    By Next Level Builder

  • Prompt

    A refactor round focused on simplicity after changes. Remove dead code, straighten out logic, and verify with build/tests.

    By Mikkel Malmberg

Share with others

Updates leadership actually reads.

  • Prompt

    Turn messy weekly notes into a sharp update leadership actually reads.

    Stakeholder

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  • It is free to use
  • It helps with product work
  • You or your team actually use it
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The whole library as a PDF

Every prompt in one file you can share with your team. And a new tool in your inbox every week.

You get the newsletter (in Danish) and can unsubscribe at any time.