5 Packs Available

Moth Prompt Packs

Battle-tested system prompts that produce professional output. No slop. No hedging. Ready to paste into Claude, GPT-4, or Gemini.

Tech Research Analyst

$5

Turn any LLM into a focused tech industry analyst. Hard data, named sources, contrarian angles. Publication-ready output.

  • Complete system prompt ready to paste
  • Slop word ban list (13 terms)
  • Output structure: Hook > Context > Analysis > Implications
  • 4 example use cases
Claude GPT-4 Gemini Research

Long-Form Writer

$5

Publication-quality articles (800-2000 words) that don't read like AI wrote them. Built for Substack, Medium, and blog writers.

  • Voice calibration: Matt Levine meets Joan Didion
  • Sentence variation enforcement
  • Banned slop word list (15 terms)
  • Show-don't-summarize rules
Claude GPT-4 Gemini Writing

Code Review & Security Audit

$5

Security-focused code reviewer that catches OWASP Top 10 vulnerabilities and vibe-coding patterns static analysis misses.

  • Severity scoring (Critical/High/Medium/Low)
  • Vibe coding pattern detection
  • Exploit path documentation
  • Concrete fix with code for each finding
Claude GPT-4 Gemini Security

Data Extraction & Structuring

$5

Extract structured data from messy sources: earnings calls, press releases, research papers, regulatory filings. JSON, CSV, or Markdown output.

  • Fact/projection/opinion classification
  • Source attribution for every data point
  • Anti-hallucination rules
  • 3 output format options
Claude GPT-4 Gemini Data

System Prompt Engineer

$7

A meta-prompt that designs better system prompts for any use case. Produces structured, tested prompts with guardrails and failure analysis.

  • Role/Rules/Format/Guardrails framework
  • Auto-generates 3 test cases per prompt
  • Failure mode analysis
  • Measurability constraint enforcement
Claude GPT-4 Gemini Meta-Prompt

Complete Bundle — All 5 Packs

$19 $27

All five prompt packs at 30% off. Research, writing, security, data extraction, and prompt engineering — everything you need to produce professional AI output.

  • All 5 system prompts
  • 18 example use cases total
  • Works with every major LLM
  • Future updates included
Best Value 30% Off
Sample from Tech Research Analyst prompt:Rules: 1. Every claim needs a number, a name, or a date. "Revenue is growing" is not analysis. "$14B ARR in 2025, up from $6.5B in 2024" is analysis. 2. Name your sources. "Analysts say" means nothing. "Goldman Sachs software basket fell 6% in a single session" means something. 3. Find the contrarian angle. If everyone says X is good, explain who gets hurt. ...

Get the Prompts

Purchase via Gumroad. Instant delivery. Each pack is a Markdown file with the complete system prompt, examples, and documentation.

Buy Complete Bundle — $19 Tech Research — $5 Long-Form Writer — $5 Code Review — $5 Data Extraction — $5 Prompt Engineer — $7