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cold-email

Write and run B2B cold outbound that gets replies, from cold emails and follow-ups to sending setup, LinkedIn, multichannel cadences, and reply handling. Use when the user mentions "cold email," "cold outreach," "outbound," "prospecting email," "SDR emails," "follow-up sequence," "nobody's replying," "email deliverability," "sending domains," "warm up inboxes," "LinkedIn outreach," "connection request message," "multichannel sequence," "cadence," "cold call," "voicemail," "handle replies," "AI SDR," "teardown outreach," or "product-led outbound." Send from secondary domains, verify lists first, turn off open tracking, and stop every channel when a prospect replies. Copy avoids AI tells like 'it's not X, it's Y' reveals. For building the list and account research, see prospecting. For lifecycle email, see emails. For call scripts and sales collateral, see sales-enablement.

71

Quality

89%

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SecuritybySnyk

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SKILL.md
Quality
Evals
Security

Quality

Content

78%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A well-crafted instructional skill body: it is dense with domain-specific data Claude would not know, organized into a natural workflow with pre-send and pre-present checkpoints, and cleanly split across ten real one-level-deep reference files. The gaps are modest — some redundancy between the inline citations and the benchmark index, no complete worked example inline, and an implicit rather than explicit end-to-end sequence.

Suggestions

Collapse the "Data & Benchmarks" section or the inline citations (they list the same ten files twice) to reclaim tokens without losing navigation.

Add one complete worked example email in the body (or inline in frameworks.md, prominently linked) so a reader can see all principles applied together, not just framework skeletons.

Make the end-to-end workflow explicit — e.g., a short numbered pipeline (gather inputs → write → gut-check → verify list → send → handle replies) at the top so the section order is confirmed as the intended sequence.

DimensionReasoningScore

Conciseness

The body is largely lean — short sections, bullets, and concrete examples ("reply rates," "hiring ops," "Q2 forecast"; bounces "under 2%"; warm "3–4 weeks") with no explanation of concepts Claude already knows. Minor trimming opportunities remain: the "Data & Benchmarks" section re-lists all ten references already cited inline, and the "Quality Check" list partially overlaps "What to Avoid," so it fits the efficient-with-minor-overexplanation anchor rather than the every-token-earns-its-place anchor.

4 / 5

Actionability

Guidance is largely executable: exact CTA phrasings ("Worth exploring?"), subject-line specs ("2-4 words, lowercase"), four named framework shapes, a named reply taxonomy, and a specific booking rule ("two proposed times plus a link"). It falls short of the top anchor because no complete worked example email appears in the body (full examples are deferred to references/frameworks.md) and a few directives stay qualitative ("Would YOU reply to this?"), matching the mostly-executable/minor-gaps anchor.

4 / 5

Workflow Clarity

The section order mirrors the real process (Before Writing → Writing → Structure → Subject Lines → Follow-Ups → Before You Send → Beyond Email → When They Reply → Quality Check), and checkpoints exist: the pre-send list ("Verify every list right before upload and keep bounces under 2%"), the read-aloud/AI-tells check, and a gut-check checklist before presenting. It stops short of the top anchor because the end-to-end sequence is implied by section order rather than an explicit pipeline, and recovery loops are only hinted ("If it sounds like marketing copy, rewrite it") rather than spelled out.

4 / 5

Progressive Disclosure

This is a model overview-plus-references structure: every section points to a one-level-deep reference file that exists in the bundle (all ten cited files — benchmarks, deliverability, follow-up-sequences, frameworks, linkedin-outreach, multichannel-cadence, outbound-plays, personalization, reply-handling, subject-lines — are present and substantive), each citation is signaled with what the file contains, and a consolidated "Data & Benchmarks" index aids discovery. This matches the clear-overview/well-signaled/one-level-deep anchor.

5 / 5

Total

17

/

20

Passed

Description

96%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

An excellent description: it states concrete capabilities, includes a rich set of natural trigger terms (including symptom phrases like "nobody's replying"), explicitly answers both what and when, and proactively disambiguates from adjacent skills. The only weakness is minor trigger overlap with the sales-enablement skill around "cold call" and "voicemail."

DimensionReasoningScore

Specificity

The description enumerates many concrete capabilities — "write and run B2B cold outbound that gets replies, from cold emails and follow-ups to sending setup, LinkedIn, multichannel cadences, and reply handling" plus specific operating rules ("Send from secondary domains, verify lists first, turn off open tracking, and stop every channel when a prospect replies"). This matches the top anchor: multiple specific concrete actions with comprehensive coverage of the domain.

5 / 5

Completeness

Both questions are answered explicitly: a clear "what" ("Write and run B2B cold outbound... from cold emails and follow-ups to sending setup, LinkedIn, multichannel cadences, and reply handling") and an explicit "Use when the user mentions..." clause with concrete trigger phrases. This matches the top anchor; a missing 'Use when' clause would have capped it at 3, but it is present and detailed.

5 / 5

Trigger Term Quality

Trigger coverage is extensive and natural, including synonyms and symptom phrasing users would actually say: "cold email," "cold outreach," "prospecting email," "SDR emails," "follow-up sequence," "nobody's replying," "warm up inboxes," "connection request message," "cadence," "voicemail," "AI SDR." This matches the comprehensive anchor including synonyms, even covering problem-state phrases like "nobody's replying."

5 / 5

Distinctiveness Conflict Risk

The niche is clear and the description explicitly routes edge cases to siblings ("For building the list and account research, see prospecting. For lifecycle email, see emails. For call scripts and sales collateral, see sales-enablement"), which is stronger than the mostly-distinct anchor. However, it claims "cold call" and "voicemail" as triggers while deferring call scripts to sales-enablement, creating minor overlap risk with that closely related skill — so it fits anchor 4 rather than 5.

4 / 5

Total

19

/

20

Passed

Validation

100%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository

coreyhaines31/marketingskills

Path

skills/cold-email/SKILL.md

Reviewed

Table of Contents

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