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 building-a-promotion-casegit 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/building-a-promotion-case)<a href="https://agentmods.dev/skills/refoundai/lenny-skills/building-a-promotion-case"><img src="https://agentmods.dev/badge/skills/refoundai/lenny-skills/building-a-promotion-case/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/building-a-promotion-case"><img src="https://agentmods.dev/badge/skills/refoundai/lenny-skills/building-a-promotion-case.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- 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 | $0.00037 | $0.01227 |
| Opus 5 | $0.00018 | $0.00613 |
| Sonnet 5 | $0.00007 | $0.00245 |
| Haiku 4.5 | $0.00004 | $0.00123 |
Grade A, and why
building-a-promotion-case 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 12d 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 — 84 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Building a Promotion Case
Turn your professional impact into a compelling, data-backed argument for your next career move.
Help the user with building a promotion case using insights from 6 guests and posts across Lenny's Podcast and Newsletter.
How to Help
- Inventory Impact - Help users list their major wins and map them to specific business growth metrics or organizational goals.
- Gap Analysis - Compare current performance against both formal career ladders and unwritten behaviors rewarded at the company.
- Strategic Alignment - Guide the user in drafting a script for a 1:1 conversation to explicitly state their ambitions and align on a timeline.
- Package the Proof - Assist in organizing screenshots, metrics, and testimonials into a structured document that champions can use in calibration.
Core Principles
Perform the Role Before You Have It
From "How to get promoted": "People don’t get promoted for doing their jobs really well. They get promoted by demonstrating their potential to do more. At many companies, you get promoted only after you’ve demonstrated you can handle the next level."
The most effective way to prove readiness is to proactively take on the scope and responsibilities of the target role before the official title change.
State Your Ambitions Explicitly
From "How to get promoted": "When was the last time you told your manager you’d love to get promoted? It may seem obvious to you, but they may not know how important this is to you. Bring it up at your next 1:1 and see what happens."
Managers are not mind readers: you must clearly communicate your desire for promotion so it can be factored into organizational planning.
Capture Proof in Real-Time
From "How to be prepared for layoffs": "Go open up a new doc and start dumping a list of times you’ve made an impact at your current job. Include metrics, screenshots, timelines, stories—anything that’ll help you tell the story of your successes."
Maintain a running document of specific metrics, timelines, and screenshots while the data is fresh and accessible to avoid scrambling during review season.
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.
- 12d ago First seen · 84 lines · 37 tokens per session scan A a0b0b8a5e48f
building-a-promotion-case is a skill published in the GitHub repository RefoundAI/lenny-skills (1,321 stars, last pushed 1mo ago), licensed MIT. It adds 37 tokens to every session and 1,227 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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