Lenny Skills is a collection of product-management and engineering workflows for Claude Code and other AI agents, covering areas such as strategy, research, planning, shipping, growth, and hiring. Each skill gives an agent specialized guidance, frameworks, checklists, or templates for product work, and the catalogue contains many of these skills.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add RefoundAI/lenny-skills --skill defining-product-strategygit clone --depth 1 https://github.com/RefoundAI/lenny-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/refoundai/lenny-skills/defining-product-strategy)<a href="https://agentmods.dev/skills/refoundai/lenny-skills/defining-product-strategy"><img src="https://agentmods.dev/badge/skills/refoundai/lenny-skills/defining-product-strategy/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/refoundai/lenny-skills/defining-product-strategy"><img src="https://agentmods.dev/badge/skills/refoundai/lenny-skills/defining-product-strategy.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00033 | $0.00999 |
| Opus 5 | $0.00016 | $0.00500 |
| Sonnet 5 | $0.00007 | $0.00200 |
| Haiku 4.5 | $0.00003 | $0.00100 |
Grade A, and why
defining-product-strategy scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 13d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 72 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Defining Product Strategy
Transform vision into a concrete plan of action by making hard choices that drive customer behavior.
Help the user with defining product strategy using insights from 27 guests and posts across Lenny's Podcast and Newsletter.
How to Help
- Diagnose the crux - Help the user identify the primary obstacle or high-stakes challenge that is currently holding the product back.
- Guide the choice cascade - Walk the user through defining where they will compete and how they will uniquely win in that space.
- Structure the narrative - Assist in distilling complex directions into a simple 'why' and a set of memorable strategic pillars.
- Stress-test the plan - Use AI or external critiques to identify blind spots, common consensus thinking, or lack of defensibility.
Core Principles
Distill to a simple 'why'
Anneka Gupta: "When people say, 'I want someone that's strategic,' what they're really saying is, 'I want someone that can come up with and articulate a compelling and simple why behind the decisions and the direction of the company and product.' So that's number one. And the second piece is, 'I want someone that's going to champion and be a change agent to do things that may be hard but actually best for the long-term interest of the product or company, even though those things are not going to be easy to execute on.'"
True leadership requires the ability to take complex company directions and compress them into a single, compelling narrative that provides clear purpose for the team.
Strategy as an integrated set of choices
Annie Pearl: "Strategy is really just an integrated set of choices that outline how you're going to win in whatever marketplace you choose. And so, a good product strategy is going to answer questions like what's your winning aspiration? But maybe more importantly, where are you going to play?"
Avoid lists of goals by defining exactly where the company will compete and the specific mechanisms it will use to win in that marketplace.
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 13d ago First seen · 72 lines · 33 tokens per session scan A 4ed52cdbd7ca
defining-product-strategy is a skill published in the GitHub repository RefoundAI/lenny-skills (1,321 stars, last pushed 1mo ago), licensed MIT. It adds 33 tokens to every session and 999 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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notion
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Extract text from PDFs and scanned documents. Use webextract for remote URLs, pymupdf for local text-based PDFs, marker-pdf for OCR/scanned docs. For DOCX use python-docx, for PPTX see the powerpoint skill.