What do I need to use Source Triangulation?

The claim, precisely; Where the user met it; The stakes; The user's search access.

Is Source Triangulation 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.

Source Triangulation

Q: How do I know the Source Triangulation output is good?

The skill verifies itself against its own quality checks: The chain was walked to an origin or an honest dead end; Independence was judged by method/data, not by outlet count; The origin's date and incentive are in the record; Drift between original and circulating wording was checked.

🔵 Stable🕐 updated 2026-07-19 🔷 SkillSpec L3 pm-cowork

Verify a claim before repeating it — the independent-sources test (three citations of one press release is one source), the provenance trace to the original, and the confidence grading that separates established from echoed. Use when asked is this claim actually true, verify this stat before the deck, everyone cites this number where's it from, or how solid is this source. Produces the provenance trace, the independence assessment, the confidence grade with its reasoning, and the repeat-it-as phrasing.

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

What to give it

▸The claim, precisely — "80% of projects fail" traced differently than "PMI found 80% of IT projects miss deadlines"; precision in the claim is precision in the trace

▸Where the user met it — the citing source starts the chain

▸The stakes — a deck stat, a strategy's foundation, a public claim? Depth scales: load-bearing claims get full traces; color commentary gets the quick check

▸The user's search access — the skill directs the trace; live searching (where available) executes it — otherwise the output is the trace *plan* with the checks to run

✅ 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.

✓The chain was walked to an origin or an honest dead end

✓Independence was judged by method/data, not by outlet count

✓The origin's date and incentive are in the record

✓Drift between original and circulating wording was checked

✓The phrasing matches the grade — no confidence inflation in the repeat

⚠️ What it refuses to do

Do not count citations as confirmation — three echoes of one press release is one source with reverb

Do not stop at a reputable citer — reputable outlets echo single sources daily; the origin is the standard

Do not launder the grade in the phrasing — "studies show" for a single vendor survey is the exact sin

Do not pick a side in contested claims — the range is the honest fact

Do not repeat unverifiable claims bare — folklore travels on exactly that concession

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="source-triangulation"></div>
<script src="https://mohitagw15856.github.io/pm-claude-skills/embed.js" async></script>

💬 Discussion

Source Triangulation is one of 750 open-source professional AI agent skills — all SkillSpec L3. Try them all in the browser · ⭐ Star on GitHub · Browse the full catalog