Table of content
Message architecture, conversion copy, and brand voice governance
Installation
npx claude-plugins install @gtmagents/gtm-agents/copywriting
Contents
Folders: agents, commands, skills
Included Skills
This plugin includes 4 skill definitions:
cold-email-personalization
Complete cold email system teaching research-driven personalization, “poke the bear” openers, custom signal hunting, and strict QA.
View skill definition
Cold Email Personalization Skill
When to Use
- Cold Outbound Ideation: Drafting initial emails and subject lines.
- Personalization: Mapping research signals to first lines.
- Sequence Building: Creating follow-up sequences that rotate value propositions.
- QA & Optimization: Reviewing drafts against a strict rubric before sending.
Framework
- Message Market Fit > Cleverness: Show you understand the person/company immediately.
- Research IS the Personalization: Custom signals prove you did your homework.
- Personalization in the First Line: Use bracketed variables
{{...}}or whole-offer strategy. - Tight, Conversational Copy: Plain text, minimal fluff, 60–120 words.
- One Job Per Email: Single sharp question or CTA.
- Earn Replies, Not Just Meetings: Confirm situation before selling.
Core Principles
- Targeting > Messaging: Good targeting with bad messaging wastes qualified prospects.
- Two Paths to Personalization: Custom Signal Research (Path A) vs. Whole Offer Strategy (Path B).
- The “Specifically” Line: “Specifically, it looks like you’re trying to sell to {{customer_type}}…”
Templates
- Research Playbook : How to find custom signals.
- Variable Schema : Standard variables to capture.
- Email Structure : Subject lines, body copy, and “punchiness”.
- Campaign Types
…(truncated)
message-architecture
Use when structuring messaging hierarchy, hook banks, and CTA playbooks.
View skill definition
Message Architecture Systems Skill
When to Use
- Creating new messaging for campaigns, features, or personas.
- Auditing messaging consistency across channels.
- Onboarding new writers or agencies.
Framework
- Audience & Insight – persona, pain, desired outcome.
- Promise – primary value proposition + emotional appeal.
- Proof – metrics, customer quotes, product differentiators.
- Hooks – formulas mapped to channels.
- CTAs – stage-specific calls to action + urgency modifiers.
Templates
- Message house diagram.
- Hook bank sheet with formulas/examples.
- CTA matrix (persona x funnel stage x CTA).
Tips
- Document banned phrases and compliance notes.
- Keep proof points fresh; retire outdated metrics.
- Pair with
voice-guidelinesskill to maintain tone consistency.
offer-testing
Use when designing copy experiments to optimize hooks, offers, and CTAs.
View skill definition
Offer Testing Playbooks Skill
When to Use
- Planning subject line/CTA/offer tests across email, ads, or landing pages.
- Validating new positioning or pricing language.
- Running copy refresh cycles for campaigns.
Framework
- Hypothesis – statement of expected lift + rationale.
- Variable Selection – hook, CTA, body copy, offer framing, proof element.
- Segmentation – define audience splits and holdouts.
- Metrics – primary KPI + guardrails (opens, CTR, CVR, CPL, unsub, spam).
- Analysis – statistical significance (chi-square, z-test) or Bayesian approach.
Templates
- Experiment brief (variable, control, variant, KPI, sample size, duration).
- Results report (metric table, significance, insight, next steps).
- Prioritization matrix (ICE/RICE scoring).
Tips
- Limit to one variable per test to isolate learnings.
- Ensure minimum sample sizes per channel before declaring winners.
- Log tests and learnings in a shared repository.
voice-guidelines
Use when enforcing brand tone, style, and localization rules across copy.
View skill definition
Voice & Style Guidelines Skill
When to Use
- Reviewing copy for tone consistency.
- Localizing copy for new regions or verticals.
- Training new writers or agencies on brand standards.
Framework
- Voice Pillars – e.g., confident, empathetic, pragmatic (with examples).
- Tone Ladder – how tone shifts by channel, funnel stage, or audience.
- Style Rules – grammar, punctuation, casing, formatting, banned phrases.
- Accessibility – reading level, inclusive language, jargon policy.
- Localization Notes – regional terminology, regulatory statements, measurement units.
Templates
- Do/Don’t example library.
- Localization matrix (region, language, required changes).
- Voice feedback form (issue, recommendation, owner).
Tips
- Revisit guidelines quarterly; align with positioning updates.
- Pair with
message-architecturefor consistent structure. - Track exceptions (e.g., partner co-branding) to avoid conflicting signals.