Systems Lab

Agent skill

sdr-outbound-rules

SDR outbound writing rules, 8 allowed messaging frameworks, and tone guidelines by offer type.

slowingReaches the webInstructions only400 words

Filed under Outbound email.

From Frontal-so/outbound-skills · 73 skills · 4 · pushed 2026-07-14

What it does when it runs

SDR outbound writing rules, 8 allowed messaging frameworks, and tone guidelines by offer type. Use when training SDRs, creating messaging guidelines, or standardizing outbound quality.

Read from the skill and the 0 files bundled beside it. A skill’s own description is written to be selected by an agent, so it describes the job and not the dependencies.

Keys and connectors you must supply
None found.
Hosts it reaches
  • frontal.so
Tool permissions it declares
No allowed-tools in the frontmatter. It only issues instructions, so there is nothing to bound.
Actions present in the files
None. Instructions only.

Ask about sdr-outbound-rules

Opens your assistant with this page's verified links already in the prompt.

Is this safe to install?ClaudeChatGPT
Adapt it to my stackClaudeChatGPT
What else do I need for it to workClaudeChatGPT
Rather ask a human? Talk to Cheetah

Install it

View source on GitHub ↗
git clone --depth 1 --filter=blob:none --sparse https://github.com/Frontal-so/outbound-skills.git /tmp/outbound-skills
git -C /tmp/outbound-skills sparse-checkout set "skills/sdr-outbound-rules"
mkdir -p ~/.claude/skills/sdr-outbound-rules
cp -R "/tmp/outbound-skills/skills/sdr-outbound-rules/." ~/.claude/skills/sdr-outbound-rules/

Picked up without a restart. A project skill of the same name is shadowed by your personal one. For one repository only, swap ~/.claude/skills for .claude/skills. Claude Code docs ↗

The folder is the same in every client that implements the format — 46 of them — so if yours is not above, only the destination changes.

The skill

Source on GitHub ↗

Reproduced in full from Frontal-so/outbound-skills/blob/27cd847be5ce7e9b749b1d672cbfb29935d911db/skills/sdr-outbound-rules/SKILL.md, which is licensed MIT (repository). 400 words, 22 headings.

SDR Outbound Writing Rules

Core Writing Rules

Emails: 60-90 words maximum
No bullets in cold emails
One CTA only

CTA Rules:
- Clear and direct
- Respectful of their time
- Scheduling-oriented when possible

Personalization Inputs to Use

  • Name
  • Company
  • Role
  • Industry
  • Challenge (if known)
  • Goal (if known)
  • Source/trigger
  • Familiarity level

8 Allowed Messaging Frameworks

1. Before/After

Show transformation from current state to desired state.

2. Pattern Interrupt

Break expected email patterns to grab attention.

3. Ask Before Pitch

Lead with question, earn right to pitch.

4. Upfront Value

Provide value before asking for anything.

5. Do the Math

Calculate potential impact with numbers.

6. Challenge of Similar Companies

Reference industry-specific patterns.

7. Neutral Insight

Share third-party resource, build trust.

8. Typical Problems by Role

Address role-specific pain points.

Tone by Offer Type

Agency Services

  • Consultative
  • Strategic
  • Calm
  • Position as trusted advisor

Accelerator

  • Slang professional
  • Friendly
  • Curious
  • Approachable expert

Outbound Cold

  • Pattern interrupt
  • Short
  • Clear
  • Direct but not aggressive

Quality Standards

Good Email

  • 60-90 words
  • One clear CTA
  • Specific social proof
  • Relevant trigger
  • Human tone

Bad Email

  • 150+ words
  • Multiple CTAs
  • Vague claims
  • No personalization
  • Corporate tone

Review Checklist

Before sending any outreach:

  • Under 90 words?
  • Single CTA?
  • Trigger or personalization included?
  • Social proof specific (numbers)?
  • Tone matches offer type?
  • No buzzwords?
  • No fake enthusiasm?
  • Would you respond to this?

Combines with

SkillWhy
sdr-master-promptsAI prompts following these rules
email-writing-frameworksApproved framework structures
josh-braun-copywritingQuality writing principles
email-metrics-benchmarksTrack rule impact on metrics

Example prompts

Review this email against the SDR outbound rules checklist.

Rewrite this 150-word email to be under 90 words.

Which of the 8 frameworks should I use for a cold outbound campaign?

Part of Frontal — free, open GTM skills for your AI agent. Browse the library →

Other skills for the same job

Different authors, same problem. Matched on the words in the skill name, across every library in the catalogue except this one.

Need help setting it up?

This page tells you what sdr-outbound-rules does and what it needs. Cheetah builds the agent setup it runs inside: data, CRM, sequencing and the guardrails.

Book a call →

The directory stays free. There is nothing gated behind this.