After months of copy-pasting the same prompts across projects, I finally organized everything into one place.
500 battle-tested AI prompts, organized into 10 categories.
What's inside
Every prompt is written for developers who actually build things — not marketing fluff.
Categories:
- 🐛 Debugging & code review — rubber duck that actually helps
- 🐳 Docker & containers — compose files, health checks, multi-stage builds
- 🏠 Homelab & self-hosting — Traefik, PiHole, monitoring stacks
- 🤖 AI agents & automation — n8n flows, cron logic, webhook handlers
- ✍️ Writing & docs — READMEs, changelogs, technical specs
- 🏗️ System design — architecture reviews, trade-off analysis
- 🗄️ Data & SQL — query optimization, schema design, migrations
- 🔒 Security hardening — audits, Dockerfile hardening, secret management
- 🧠 Local LLMs (Ollama) — prompts tuned for Mistral, Llama, Qwen
- ⚡ Productivity — daily planning, code reviews, PR descriptions
Why prompts still matter in 2026
Everyone has AI access. The gap is knowing what to ask.
A good prompt is the difference between "here's some code" and "here's why your Docker container exits with code 137, here's how to fix it, and here's how to prevent it."
Three prompts, free
Debug any error instantly:
You are a senior engineer. I have this error: [ERROR].
My stack: [STACK].
Give me: 1) Root cause, 2) Fix, 3) How to prevent it. Be direct.
Dockerfile security audit:
Audit this Dockerfile for security issues. Check: root user, exposed secrets, unnecessary packages, missing health check, image size. Output: critical/medium/low findings with fixes.
[DOCKERFILE]
Local LLM system prompt (Ollama):
You are a senior DevOps engineer with 15 years of experience.
You give direct, opinionated answers. No disclaimers. No "it depends" without specifics.
When you don't know something, say so. Prefer battle-tested solutions over cutting-edge.
The full pack is $29 one-time — no subscription, instant download, free updates.
👉 signalweekly.gumroad.com/l/signal-prompt-pack
More prompts, tools and homelab deep-dives every week on SIGNAL.
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