---
slug: "spamguard-cold-email"
source_type: "readme"
source_url: "https://cdn.jsdelivr.net/gh/termsheetinator/spamguard-cold-email@main/README.md"
repo: "https://github.com/termsheetinator/spamguard-cold-email"
source_file: "README.md"
branch: "main"
---
[](./LICENSE)
[](https://claude.ai/code)
[](https://github.com/termsheetinator)
*Brought to you by [InfraSuite](https://infrasuite.io) and Advisory Incubator™*
---
## What This Is
A Claude Code skill that scans cold email copy against a comprehensive deliverability ruleset — flags every violation, checks for ambiguous factual claims before rewriting, rewrites every flagged line in plain English, then runs a unified spam + clarity loop until both pass before anything reaches you.
Paste any copy: subject lines, email bodies, follow-up sequences, CTAs, opener lines, LinkedIn DMs, or any custom variable.
No setup. No memory file. Paste and scan.
---
## What It Covers
```
SPAMGUARD COVERAGE
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
350+ banned single words (sourced from Mailmeteor,
ActiveCampaign, and deliverability testing)
— word-by-word mechanical check: every token
in your copy is looked up against the list
— compound and hyphenated forms caught
(lower-cost, no-cost, interest-free, money-back)
— plurals of banned words are also banned
— case-insensitive: Avoid, AVOID, avoid all flag
7 high-risk phrase categories
→ Money & financial hype
→ Scammy / too-good-to-be-true language
→ Marketing overpromises
→ Pressure & clickbait
→ Health & pharma terms
→ Tech phishing-like phrases
→ Gambling, adult & blacklisted terms
26 banned follow-up phrases
— clichés that signal a template instantly
1 intent check (before rewriting)
— ambiguous claims about fees, outcomes,
or process flagged before any rewrite
— asks the clarifying question first
1 unified audit loop
— spam and clarity checked together each pass
— grade 5 clarity: simplest word, one idea
per sentence, no filler, no ambiguity
— loop runs until both pass in the same scan
5 formatting checks
→ ALL CAPS anywhere in subject or body
→ Em dashes (—) — the AI giveaway
→ Multiple exclamation marks
→ Excessive links
→ Promotional formatting
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Works on:
emails · subject lines · follow-up sequences
CTAs · opener lines · LinkedIn DMs · custom variables
```
---
## How It Works
---
## Output Format
Every scan returns the same structure — clean, readable, actionable:
```
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
SPAMGUARD SCAN
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Total violations: [n]
── Banned single words ──────────────────────
"[exact token in context]"
→ word: [banned word]
→ rewrite: [plain rewrite of the line]
── Banned phrases ───────────────────────────
"[exact phrase]"
→ rewrite: [plain rewrite]
── High-risk phrases ────────────────────────
"[exact phrase]"
→ category: [name]
→ rewrite: [fix]
── Formatting ───────────────────────────────
[flag] → [what to do]
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
CLEAN VERSION
Audit: [n] pass(es) — spam clean · clarity confirmed
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
[Full rewrite — spam-clean, grade-5 clarity, intent preserved, ready to send]
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
VERDICT
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
[One sentence: violations found, audit passes, send-ready confirmation]
```
---
## How It Rewrites
SpamGuard does not swap words. It rewrites lines from the idea underneath them — and checks for clarity in the same pass.
```
THE PROCESS
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Before rewriting:
→ Check flagged lines for ambiguous claims
about fees, outcomes, or process
→ Ask the clarifying question if needed
→ Never guess what the sender meant
Each rewrite pass:
→ Spam check: every word against 300+ list
→ Clarity check (same pass):
simplest word · one idea per sentence
no filler · grade 5 · intent preserved
→ If either fails — rewrite and run again
→ Deliver only when both pass together
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Replace → promotional language with observational
Replace → pressure with permission
Replace → hype with specificity
Replace → complex words with everyday words
If it sounds like an ad, a scam, or a coupon
— rewrite it. If a ten-year-old would have to
re-read it — simplify it.
```
---
---
## Tips for Users
**How to trigger a scan:**
SpamGuard has two ways to run:
1. **Automatic hook** — After install, SpamGuard activates any time you ask about spam words, deliverability, trigger words, or banned words in Claude Code. Just ask naturally: *"check this email for spam"* or *"does this copy have any trigger words"* — the hook fires and the skill runs automatically.
2. **Manual trigger** — Type `/spamguard` in Claude Code, paste your copy, and run the scan directly. Use this when you want to run a scan without a question attached.
**What to paste:**
You can paste anything — full emails, subject lines only, follow-up sequences, CTAs, opener lines, LinkedIn DMs, or a single sentence you're not sure about. SpamGuard scans whatever you give it.
**Custom variables in copy:**
Variables like `{first_name}` or `{company}` are fine to leave in. SpamGuard will skip them during the word check and treat the surrounding copy normally.
**If SpamGuard asks you a question before rewriting:**
That is the Intent Check. It runs when a flagged line contains an ambiguous claim about fees, compensation, outcomes, or process. Answer the question so SpamGuard can rewrite accurately — it will never guess what you meant.
**If the clean version still feels off:**
Tell SpamGuard what you don't like. Say *"the CTA still sounds too salesy"* or *"the opener is too bland"* — it will run another pass. The unified loop reruns until both spam and clarity pass together.
**Keeping your word list current:**
Run `curl -fsSL https://raw.githubusercontent.com/termsheetinator/spamguard-cold-email/main/install.sh | bash` to pull the latest version any time. The word list is actively maintained — new words get added as deliverability testing surfaces new triggers.
---
## Install
```bash
curl -fsSL https://raw.githubusercontent.com/termsheetinator/spamguard-cold-email/main/install.sh | bash
```
Open [Claude Code](https://claude.ai/code) in any directory and run:
```
/spamguard
```
Paste your copy. Get a clean scan.
## Update
Already installed? Re-run the same command. It overwrites the skill and the word list with the latest version.
```bash
curl -fsSL https://raw.githubusercontent.com/termsheetinator/spamguard-cold-email/main/install.sh | bash
```
---
## Files
| File | Purpose |
|---|---|
| `spamguard.md` | The Claude Code skill — installs to `~/.claude/skills/` |
| `spamwords.md` | Master spam word and phrase reference — installed to your project directory |
| `install.sh` | One-command installer |
---
## Requirements
- [Claude Code](https://claude.ai/code) — the CLI for Claude
- An [Anthropic](https://anthropic.com) account
---
---
**Brought to you by**
[**InfraSuite**](https://infrasuite.io) — Enterprise Grade Cold-Email Mailboxes
**×**
**Advisory Incubator™** — AI & Tech Enabled Advisory
*Written and maintained by [Termsheetinator](https://github.com/termsheetinator)*
© 2026 Termsheetinator. All rights reserved. — [License](https://github.com/termsheetinator/spamguard-cold-email/tree/HEAD/LICENSE)
