Lean Blueprint

Q: What is a Claude Code skill and how does the Lean Blueprint skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Lean Blueprint is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Product category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Product · Sub-category: product-misc · Last updated: 2026-05-30

type:generator

USE FOR: generating Lean blueprint, annotating theorems with @[blueprint], scaffolding blueprint directory, building blueprint LaTeX, rendering blueprint web. DO NOT USE FOR: writing Lean proofs (use @lean-proof), opening Lean/Mathlib PRs (use @lean-pr). TRIGGERS: blueprint, leanblueprint, LeanArchitect, dependency-graph.

About this skill (catalog notes)

Lean Blueprint includes pricing or quota commentary. The SKILL.md is on the shorter side at about 442 words.

Source: github.com/r-irbe/proof-skills
License: Apache-2.0
Original author: r-irbe
Indexed lastmod: 2026-05-30
Catalog position: Product · product-misc
Indexed related skills: 10

How Lean Blueprint fits the catalog

Lean Blueprint sits in the Product category under the product-misc sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

What this skill does

Lean Blueprint is a community-contributed Claude Code skill in the product-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/lean-blueprint/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Lean Blueprint Claude Code skill is built for product managers, product designers, and cross-functional teams planning, shipping, and measuring product features. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 93,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/lean-blueprint
curl -L https://claudskills.com/skills/lean-blueprint/SKILL.md \
  -o ~/.claude/skills/lean-blueprint/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/lean-blueprint/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/lean-blueprint/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\lean-blueprint\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Lean Blueprint Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/lean-blueprint/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Lean Blueprint skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Lean Blueprint skill?

Use Lean Blueprint when your Claude Code task falls under the Product category — specifically in the product misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Lean Blueprint" or describe the task and let Claude pick). Browse related skills at /category/product/.

What is a Claude Code skill and how does the Lean Blueprint skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Lean Blueprint is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Product category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/r-irbe/proof-skills/blob/HEAD/skills/lean-blueprint/SKILL.md
License: Apache-2.0
Author: r-irbe
Website: https://github.com/r-irbe/proof-skills

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

r-irbe. (2026). Lean Blueprint [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/lean-blueprint/

BibTeX

@misc{lean-blueprint-2026,
  author    = {r-irbe},
  title     = {Lean Blueprint [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/lean-blueprint/}
}

Embed this skill

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Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills. · What's New · Install guide · About · llms.txt

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