skills/cold-email
github/coreyhaines31/marketingskills#skills/cold-email
litmus-skill-v3 · 2026-07-05
graded at commit f86637e · 2026-05-26
The skills/cold-email skill is graded A by polygraph under litmus-skill-v3, as of 2026-07-05, anchored to its content hash.
Graded under litmus-skill-v3; the current skill methodology is litmus-skill-v2. A re-run may change the grade.
Self-reported “Write B2B cold emails and follow-up sequences that get replies. Use when the user wants to write cold outreach emails, prospecting emails, cold email campaigns, sales development emails, or SDR emails. Also use when the user mentions "cold outreach," "prospecting email,"…” — the skill’s own SKILL.md description at the graded commit, not part of the grade.
A static safety grade — a deterministic scan of the skill’s SKILL.md and bundled files. An A means static-clean, not behavioral proof: a skill’s instructions are interpreted by an agent at runtime.
no dangerous commands in the body; no bundled scripts
content hash · 0xa23ca0e97c…9d5c
Source · github.com/coreyhaines31/marketingskills/tree/main/skills/cold-email
Watch for changes
This grade is a snapshot of the skill’s files at one commit. Get an email when a new commit changes skills/cold-email and polygraph re-runs the litmus — one message per change, one-click unsubscribe.
Monitor this skillReproduce this grade
The skill litmus is open and deterministic. Point it at the skill directory and compare the grade and content hash — a false grade is falsifiable, not merely disputable.
npx -p @polygraphso/litmus polygraphso-litmus-skill <skill-dir>Embed this badge
Drop it in the skill’s README, docs, or listing. It always shows the current grade and links back here.
[](https://www.polygraph.so/skill/github/coreyhaines31/marketingskills/skills/cold-email)<a href="https://www.polygraph.so/skill/github/coreyhaines31/marketingskills/skills/cold-email"><img src="https://www.polygraph.so/api/badge/skill?skill=github/coreyhaines31/marketingskills/skills/cold-email" alt="polygraph grade"></a>[](https://www.polygraph.so/skill/github/coreyhaines31/marketingskills/skills/cold-email)Questions
- What does the A skill grade mean for skills/cold-email?
- It’s a static safety grade(A/B/D/F) from a deterministic scan of the skill’s
SKILL.mdand bundled files. An A means static-clean — not behavioral proof, since a skill’s instructions are interpreted by an agent at runtime. - What did polygraph check?
- Three static checks: S-01 prompt-injection and context-poisoning, S-03 data-exfiltration instructions, and S-04 dangerous bundled commands. The full battery is in the methodology.
- How do I reproduce this grade?
- Run
npx -p @polygraphso/litmus polygraphso-litmus-skill <skill-dir>. The scan is open and deterministic, anchored to the skill’s content hash, so the same directory yields the same grade.