Is Sun Tzu Strategy Brief free to use?

Yes — run it free in the browser playground (no API key needed for the sponsored trial, or bring any provider key), or install it into Claude Code, Cursor, ChatGPT and more via npx pm-claude-skills. MIT-licensed and open source.

Sun Tzu Strategy Brief

Q: How do I know the Sun Tzu Strategy Brief output is good?

The skill verifies itself against its own quality checks: Both columns scored — a brief that only assesses the opponent is scouting,; not strategy; Every factor cell marked known/assumed/unknown, and the unknown count stated; plainly next to the verdict.

🔵 Stable🕐 updated 2026-07-26 🔷 SkillSpec L3 pm-dead-mentors

Prepare for a specific contest — a competitive deal, a negotiation, a market entry, a turf fight — using the actual planning framework from Sun Tzu's Art of War: the five factors, the calculations before battle, and winning without fighting. Use when facing a competitor head-to-head, preparing a bake-off or RFP, entering a rival's market, or picking which fight to have. Produces a strategy brief with a fight/no-fight verdict.

▶ Run it free — no key needed 📝 Grade your existing draft View SKILL.md ↗

✅ The bar it holds itself to

Every skill in this library self-verifies — these are this skill's own quality checks, straight from its definition.

✓Both columns scored — a brief that only assesses the opponent is scouting,

✓not strategy

✓Every factor cell marked known/assumed/unknown, and the unknown count stated

✓plainly next to the verdict

✓At least three genuine no-battle options, not one padded to three

✓The verdict is one of the three words, committed to — "it depends" is the

✓exact failure this skill exists to prevent

✓Quotes only where exact (Giles translation); otherwise paraphrase with a

⚠️ What it refuses to do

Do not produce war-metaphor decoration on top of an ordinary SWOT — every

section should do analytical work the five factors made possible

Do not let the user's fighting spirit set the verdict; the book's most-repeated

advice is to not fight battles you haven't already won on paper

Do not treat colleagues as the "enemy" — this skill is for external contests;

Install

npx pm-claude-skills add --agent claude   # or codex · cursor · gemini · hermes
# or one-line MCP (every skill, any client):
claude mcp add pm-skills -- npx -y pm-claude-skills-mcp

Related skills

🔌 Embed this skill

Drop this on your blog, docs, or site — it renders a "Run this skill" card:

<div data-pm-skill="sun-tzu-strategy-brief"></div>
<script src="https://mohitagw15856.github.io/pm-claude-skills/embed.js" async></script>

💬 Discussion

Sun Tzu Strategy Brief is one of 832 open-source professional AI agent skills — all SkillSpec L3. Try them all in the browser · ⭐ Star on GitHub · Browse the full catalog