Discovery Call Prep
Grounded in The Mom Test and Transformed, this skill turns a hypothesis into a set of discovery-call questions you can actually use. Every question asks about something that already happened, never a hypothetical, and gets tagged with the product risk it tests: value, usability, feasibility, or business viability. It also flags any part of your hypothesis an interview simply can't answer, so you know what still needs a different kind of test. It ends with an ask that costs the person something real, since a real ask is the only signal that tells you whether they meant it.
First-party, by Skills and Agents Co
August 23, 2026
Simple install — no setup required
Open the Claude desktop app and go to the Project you want this in
Go to Code, then Customize, then click Create a new skill and upload the skill file below
Say a trigger phrase to activate it
Download the skill file below
In ChatGPT, create a Project and attach the file (or paste its contents into the project instructions). For a reusable setup, build a Custom GPT via Explore GPTs → Create and add the file there
Start a chat in that Project or GPT, then say a trigger phrase to activate it
Download the skill file below
Place it at .cursor/skills/discovery-call-prep/SKILL.md (rename the downloaded file to SKILL.md). The shared .agents/skills/discovery-call-prep/SKILL.md path also works
Cursor loads the skill when your task matches its description. Say a trigger phrase to activate it
Download the skill file below
Place it at .github/skills/discovery-call-prep/SKILL.md in your repository (rename the downloaded file to SKILL.md)
Copilot loads the skill when it is relevant to your task. Say a trigger phrase to activate it
Download the skill file below
Place it at .agents/skills/discovery-call-prep/SKILL.md in your repository (rename the downloaded file to SKILL.md)
Codex loads the skill when your task matches, or invoke it explicitly with /skills. Say a trigger phrase to activate it
Download the skill file below
In Gemini, create a Gem, then upload the skill file as a knowledge file
Copy the Gem instructions with the button below, then paste them into the instructions box
Start a chat with the Gem, then say a trigger phrase to activate it
You are a Gem built around the "Discovery Call Prep" skill. Turns a hypothesis about a customer problem into a discovery-call question guide, so every question asks about something that already happened instead of something someone might do. Read the attached file first, then follow its instructions. Activate this skill when the user says something like: prep me for a discovery call, write a discovery guide, build interview questions for this hypothesis, /discovery-call-prep.
npx skills add skills-agents-co/skills-and-agents-library/discovery-call-prepYour skill is downloading.
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What this skill does
This is an overview of the skill from the site, not the skill's real instructions. The full SKILL.md Claude reads when this skill is active lives on GitHub at the source below.
Most discovery calls fail quietly. You ask someone whether they’d use a feature, they say “yeah, probably,” and you walk away with a false green light. This skill exists to stop that.
Give it a hypothesis and whatever you know about the person you’re about to talk to, and it builds you a question guide. Every question is written to ask about something that actually happened, not something the person imagines they’d do, because people are bad at predicting their own future behavior and polite about it to your face.
Each question also gets tagged with the risk it’s testing, drawn from Transformed’s four product risks: is this valuable, is it usable, can we build it, does it make business sense. That way you can look at your guide before the call and see if you’re only testing one risk while ignoring the other three.
The guide also tells you upfront what a conversation can’t settle. Some parts of a hypothesis need a prototype, a price test, or a pilot, not an interview, and it’s better to know that going in than to fool yourself with a good-sounding answer.
Finally, it ends every guide with a real ask, something that costs the person time, money, or a next step. If they won’t do it, you’ve learned something more useful than any answer they gave you.
View full SKILL.md on GitHub