Running Lean, in your agent's vocabulary.
Your AI agent already writes your code and drafts your emails. These skills teach it to coach you through Running Lean — the same playbooks founders run inside LEANSpark, installed where you already work. Runbooks readable by humans, runnable by agents.
The language
One skill per playbook. Each one carries the full book as references and choreographs it move by move — your agent knows where you are in the arc and what the next move is.
leanspark:stress-test Idea → committed bet Draft your idea as a one-page Lean Canvas from a single sentence, thought-test the four core gates — Clarity, Desirability, Viability, Feasibility — split a blurry idea into separate bets, run the thirty-second viability math, and commit one primary bet with its riskiest assumption named.
From Is Your Idea Worth Pursuing · 8 chapters bundledleanspark:interview Conversations → evidence Find the right people to interview, ask about the past instead of pitching the future, turn each messy conversation into a Customer Forces Story, and trade polite interest for real commitments.
From How to Talk to Customers · 7 chapters bundledleanspark:… The rest of the Running Lean shelf ships book by book.
Your agent spars. LEANSpark scores.
The skills are built on an honest division of labor:
- Runs anywhere. Each skill works standalone from a single sentence — no account required to think. The full arc runs in conversation, and everything your agent drafts stays yours to edit.
- Grounded when connected. With the LEANSpark connector, the skills read your live Lean Canvas, segments, and interview evidence — your agent never re-asks what your workspace already knows.
- The lab keeps score. Your agent reasons hard and names the cracks. The scored stress-test board and interview synthesis run in your LEANSpark workspace, where the results become part of your venture's record — not lost in a chat scrollback.
A stress-test moment
The trenchcoat check, from the Clarity gate:
It's a SaaS for indie game studios, plus a marketplace where creators sell assets, and eventually we'd add ads.
◆ stress-test That's not one business model — it's three wearing a trenchcoat: a SaaS subscription, a marketplace, and an ads business stacked on one page. Different customers, different economics. A stress test can't score a model that's three models — and neither can you. Let's split them into separate bets and test each on its own.
Install the skills
/plugin marketplace add leanspark/skills/plugin install leanspark@leanspark-skills
Both skills then appear in /skills and fire on their own when a
conversation calls for them — share an idea, and the stress test offers itself.
The marketplace carries the complete packs — every chapter bundled,
the same choreographies as the signed-in downloads at
leanspark.ai/skill-packs. To pick up new skills and updates
later: /plugin marketplace update leanspark-skills.
No terminal required — the same packs run in the Claude apps and in Claude Cowork. Download a full pack from leanspark.ai/skill-packs (sign-in required), then:
- Turn on Settings → Capabilities → Code execution (and file creation). Skills don't run without it.
- Go to Customize → Skills, choose + Create skill, and upload the zip.
- Describe your idea in a normal conversation. The skill offers itself when the conversation calls for it.
The complete choreographies, no plugin required: download the full packs from
leanspark.ai/skill-packs (sign-in) and unzip into
~/.claude/skills/.
Pair the skills with the LEANSpark connector so they read your live business model instead of starting from a blank page.
Start where you are
Already building with LEANSpark? Sign in and grab the packs. New here? The skills run standalone — install one, share your idea, and when you're ready for the scored stress test, your LEANSpark workspace picks up exactly where the conversation left off.