React Performance
affaan-m/ECC
React and Next.js performance optimization patterns adapted from Vercel Engineering's React Best Practices (https://github.com/vercel-labs/agent-skills).
Help users design and maintain a high-performing culture by balancing radical transparency, psychological safety, and a relentless focus on customer delight.
$ npx skills add RefoundAI/lenny-skills --skill team-culture -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install RefoundAI/lenny-skills team-culture --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/RefoundAI/lenny-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/team-culture .claude/skills/team-culture && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "team-culture" agent skill from https://github.com/RefoundAI/lenny-skills/tree/main/skills/team-culture into .claude/skills/team-culture/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "team-culture", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/RefoundAI/lenny-skills/tree/main/skills/team-cultureType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add RefoundAI/lenny-skills --skill team-culture -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install RefoundAI/lenny-skills team-culture --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/RefoundAI/lenny-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/team-culture .agents/skills/team-culture && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "team-culture" agent skill from https://github.com/RefoundAI/lenny-skills/tree/main/skills/team-culture into .agents/skills/team-culture/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "team-culture", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add RefoundAI/lenny-skills --skill team-culture -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install RefoundAI/lenny-skills team-culture --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/RefoundAI/lenny-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/team-culture .cursor/skills/team-culture && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "team-culture" agent skill from https://github.com/RefoundAI/lenny-skills/tree/main/skills/team-culture into .cursor/skills/team-culture/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "team-culture", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/RefoundAI/lenny-skills.git --path skills/team-culture--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add RefoundAI/lenny-skills --skill team-culture -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install RefoundAI/lenny-skills team-culture --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/RefoundAI/lenny-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/team-culture .gemini/skills/team-culture && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "team-culture" agent skill from https://github.com/RefoundAI/lenny-skills/tree/main/skills/team-culture into .gemini/skills/team-culture/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "team-culture", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install RefoundAI/lenny-skills team-cultureInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add RefoundAI/lenny-skills --skill team-culture -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/RefoundAI/lenny-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/team-culture .github/skills/team-culture && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "team-culture" agent skill from https://github.com/RefoundAI/lenny-skills/tree/main/skills/team-culture into .github/skills/team-culture/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "team-culture", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add RefoundAI/lenny-skills --skill team-culture -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install RefoundAI/lenny-skills team-culture --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/RefoundAI/lenny-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/team-culture .opencode/skills/team-culture && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "team-culture" agent skill from https://github.com/RefoundAI/lenny-skills/tree/main/skills/team-culture into .opencode/skills/team-culture/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "team-culture", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
team-cultureHelp users design and maintain a high-performing culture by balancing radical transparency, psychological safety, and a relentless focus on customer delight.
Team Culture is an agent skill from RefoundAI/lenny-skills. Help users design and maintain a high-performing culture by balancing radical transparency, psychological safety, and a relentless focus on customer delight.
Its SKILL.md is about 2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 3 other files, including reference files (for example `references/artifacts.md` and `references/guest-insights.md`).
The repository describes itself as: 86 product management skills from Lenny's Podcast for Claude Code and AI agents. Hiring, user research, strategy, shipping, and more. The licence is MIT.
4 steps, taken from the first numbered list in SKILL.md.
Read from SKILL.md and the folder at commit 13598cc. It shows what the files ask for, not the result of running them.
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Team Culture loads about 2k tokens when it runs, and up to ~31k if it reads all its reference files. Until then it costs about 43 tokens; SKILL.md has 1,124 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
The full file from RefoundAI/lenny-skills at commit 13598cc, republished under its MIT licence (© RefoundAI). 1,124 words, ~1,976 tokens.
.claude/skills/team-culture/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.Establish a culture of ownership, transparency, and intensity to drive long-term product success.
Help the user with building high-performing team culture using insights from 26 guests and posts across Lenny's Podcast and Newsletter.
Alisa Cohn: "They're trying now to be the leader who everyone loves, but what really needs to happen very often is, we need to drive towards results. This employee continuing to not really do a great job at their job, you don't want to push them because you don't want to upset them. You don't want to give them difficult feedback, so you're just going to keep hoping it works out. Ultimately, that leads to the demise of your company."
High-performing leaders must prioritize organizational results and performance standards over the desire to be liked by every individual. Avoiding difficult feedback to preserve popularity ultimately jeopardizes the long-term survival of the company.
Daniel Lereya: "We really have an approach of very radical transparency about everything. Before we went public, we actually shared every bit of information with our employees. Instead of demoralizing people, I think that this is something that gives them a sense of deep partnership."
Sharing core business financials and strategy creates a sense of deep partnership between leadership and employees. When everyone has full context, they are empowered to solve problems independently as owners.
Jag Duggal: "When there are hard decisions to be made, we bias in favor of the customer. The customer's love, will they want to tell their friends, and neighbors, and family about it? And so I think that's the heart of it."
High-growth cultures are fueled by a commitment to customer delight that outweighs short-term operational compromises. Leaders should bias decision-making in favor of the user emotional experience over local convenience.
Megan Cook: "So we divided the team into these smaller groups for peer feedback groups and the idea is that they meet every two weeks or so, somebody brings something that's in a pretty rough draft that they want to get reviewed and then everyone's expected to give feedback. And because we've got people in there who are different leadership levels, it's a really good opportunity to model the kind of feedback that's helpful and the culture there is one of everyone lifting that person up to make their work stronger."
To move fast, teams need low-stakes environments where they can share rough, early-stage work. Normalizing the presentation of 'unfinished' drafts helps catch directional errors early and builds collective confidence.
Matt MacInnis: "If you want to be in the 99th percentile in terms of outcomes, it's going to be really difficult. You got to sort of remind people that if they ever find themselves in the comfort zone at work, they are definitely making a mistake. It's supposed to be really fricking exhausting."
Top-tier success requires a culture that views staying in the comfort zone as a strategic mistake. Exhaustion and high pressure are often necessary precursors to 99th-percentile progress.
Patrick Campbell: "I think really defining that in your values, and values aren't values unless there's an actual trade-off. And so we had things like optimize for the long-term. There's a clear trade-off when we optimize for the long-term, you probably give up short-term revenue."
Authentic values must involve clear trade-offs where one positive behavior is prioritized over another. This makes the values useful for decision-making rather than just being decorative plaques.
See references/artifacts.md for the full list with details.
For all 47 sourced insights from 26 guests, see references/guest-insights.md
© RefoundAI, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
SKILL.md and 2 other files (references) in skills/team-culture of RefoundAI/lenny-skills.
Open the folder on GitHubat commit 13598cc
Team Culture next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Team Culture this skillRefoundAI/lenny-skills | 1.4k | — | ~2k | Automated safety check: Pass | MIT | |
| React Performanceaffaan-m/ECC | 277k | 1 repos | ~4.5k | Automated safety check: Pass | MIT | |
| Performance Profileralirezarezvani/claude-skills | 28k | — | ~684 | Automated safety check: Pass | MIT | |
| Nemoclaw Maintainer Analyze CI PerformanceNVIDIA/NemoClaw | 23k | — | ~644 | Automated safety check: Pass | Apache-2.0 | |
| Agent Performance Optimizerruvnet/ruflo | 74k | 2 repos | ~3.6k | Automated safety check: Pass | MIT | |
| Handsontable Performance Testinghandsontable/handsontable | 22k | — | ~3.4k | Automated safety check: Pass | Custom licence |
affaan-m/ECC
React and Next.js performance optimization patterns adapted from Vercel Engineering's React Best Practices (https://github.com/vercel-labs/agent-skills).
alirezarezvani/claude-skills
Systematic performance profiling for Node.js, Python, and Go applications.
NVIDIA/NemoClaw
Analyze retained NemoClaw CI timings for slow CLI tests, runner queues, or base-image publication.
ruvnet/ruflo
Agent skill for performance-optimizer - invoke with $agent-performance-optimizer
handsontable/handsontable
Guide to Handsontable's performance-tests package: Playwright scenarios measured through CDP traces and compared against golden baselines taken from the develop branch.
openclaw/openclaw
Maintain the OpenClaw memory wiki vault with deterministic pages, managed blocks, and source-backed updates.
RefoundAI/lenny-skills
Help users conduct high-impact customer interviews that move beyond surface-level feature requests to identify root emotional frustrations and specific causal triggers.
RefoundAI/lenny-skills
Help users master their personal output by shifting from reactive scheduling to intentional energy management, internal trigger mastery, and proactive boundary setting.
RefoundAI/lenny-skills
Help users reach their first moment of core value by optimizing the first-run experience, removing friction, and aligning product design with psychological triggers.
RefoundAI/lenny-skills
Help users identify unique distribution advantages and master the lifecycle of acquisition channels to build a sustainable engine for growth and retention.
RefoundAI/lenny-skills
Help users build functional product prototypes from natural language or visual mocks using AI coding tools.
RefoundAI/lenny-skills
Help users build robust infrastructure for measuring, monitoring, and iterating on AI product performance using human, code-based, and LLM-as-a-judge methodologies.
Help users design and maintain a high-performing culture by balancing radical transparency, psychological safety, and a relentless focus on customer delight. Team Culture is an agent skill from RefoundAI/lenny-skills. Help users design and maintain a high-performing culture by balancing radical transparency, psychological safety, and a relentless focus on customer delight.
Run `npx skills add RefoundAI/lenny-skills --skill team-culture -a claude-code`. Or copy the skill folder (skills/team-culture in RefoundAI/lenny-skills) into .claude/skills/team-culture in your project. Claude Code loads it when a task matches its description.
Run `npx skills add RefoundAI/lenny-skills --skill team-culture -a codex`. Or copy the skill folder (skills/team-culture in RefoundAI/lenny-skills) into .agents/skills/team-culture in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add RefoundAI/lenny-skills --skill team-culture -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/team-culture, .gemini/skills/team-culture, .github/skills/team-culture and .opencode/skills/team-culture in your project.
SKILL.md names no scripts, command-line tools or credentials: Team Culture is instructions for the agent only.
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
Team Culture is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 2k tokens (SKILL.md is roughly 7.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 29k tokens, read only when the agent opens those files.
Skills that share tags, products or a category with Team Culture: React Performance (affaan-m/ECC, 277k stars), Performance Profiler (alirezarezvani/claude-skills, 28k stars), Nemoclaw Maintainer Analyze CI Performance (NVIDIA/NemoClaw, 23k stars) and Agent Performance Optimizer (ruvnet/ruflo, 74k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
RefoundAI (a GitHub organization) maintains it in RefoundAI/lenny-skills, which has 1,382 GitHub stars. The repository holds 76 skills in this directory. The repository was last updated on July 16, 2026.
Source: RefoundAI/lenny-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.