What Leaked System Prompts From GPT-5.4, Claude 4.6, and Gemini 3.1 Teach You About Writing Your Own
The biggest AI labs just showed us their playbook -- here's how to steal their system prompt patterns for your own workflows
Qurtoo
Prompt engineering,
organized the way you actually use it.
Five pillars. Daily articles. Every post ships with working prompts you can copy, adapt, and deploy.
Chain-of-thought, few-shot, role prompting, structured output, meta-prompting.
Persona Stacking: Layer Multiple Roles in One System Prompt for Expert-Level Output
Why 'You are a senior engineer who also reviews for security' beats single-role prompts
Meta-Prompting: Write Prompts That Generate Better Prompts Than You Can
Use frontier models to improve their own instructions with measurable improvement loops
The Negative Prompt Pattern: Tell the LLM What NOT to Do and Watch Quality Jump
Why exclusion constraints are more effective than inclusion instructions for complex tasks
Few-Shot Prompting Is Dead Weight in 2026: When Zero-Shot With Constraints Outperforms Examples
The counterintuitive cases where removing examples improves output quality
Prompting for Financial Analysis: Extract Insights From Earnings Calls and SEC Filings
Structured prompts that turn 100-page filings into actionable intelligence
Agent Handoff Protocols: How to Transfer State Between Specialized Agents Without Context Loss
The structured handoff format that makes multi-agent pipelines actually reliable
Building Retry Logic Into Agent Prompts: Self-Healing Workflows That Don't Need Human Intervention
Teach your agent to detect its own failures, diagnose the cause, and try a different approach
Tool-Use Prompt Design That Prevents Hallucinated Function Calls in Production
Why your agent invents tools that don't exist and the three-line fix that stops it
The Supervisor-Worker Agent Pattern: One Smart Model Plans, Cheap Models Execute
How to architect multi-agent systems that cost 90% less than running Opus on everything
Context Engineering for Agents: Manage What Your LLM Sees Across 50 Turns Without Losing the Thread
The 2026 skill that replaced prompt engineering as the bottleneck for agentic systems
Prompt Decomposition: Break One Complex Prompt Into Five Simple Ones and Get Better Results for Less Money
The cost and quality math behind splitting monolithic prompts into chains
Red Teaming Your AI Agents With Prompt Chains Before Attackers Do
Multi-turn jailbreaks hit 97% success rates -- here are the exact prompt sequences to stress-test your agentic workflows
Red-Teaming Your Own AI App: A Prompt Injection Test Suite You Can Run Today
40 injection payloads organized by attack class with expected-vs-actual output scoring
Building Prompt Guardrails: Input Filtering and Output Validation for LLM-Powered Apps
The defense-in-depth prompt security stack every AI app needs
Prompting for Threat Modeling: STRIDE Analysis With an LLM Co-Pilot
Turn architecture diagrams into threat models in 15 minutes
Writing Incident Response Prompts That Actually Speed Up Triage
Pre-built prompt templates for log analysis, IOC extraction, and timeline reconstruction
Prompt Injection Testing for Production Apps: A Red Team Playbook
16 injection techniques to test before your users find them first
Code generation, debugging, architecture, testing, DevOps.
Prompting Parallel Coding Agents: Task Decomposition That Actually Ships
How to write prompts for Cursor 3 background agents and Claude Code subagents that run concurrently without stepping on each other
Test Generation Prompts That Produce Tests Worth Keeping
Why most AI-generated tests are useless and the prompt structure that fixes it
The System Prompt Architecture for Coding Agents: What Claude Code and Cursor Get Right
Reverse-engineering the prompt patterns behind production coding agents
How Accountants Are Using AI to Draft Client Advisory Letters in Half the Time
The prompts that turn raw financials into client-ready advisory letters, and the judgment calls AI can't make for you
Healthcare Prompting Done Right: Clinical Decision Support Without Liability Landmines
Prompt guardrails for medical applications that regulators and clinicians can trust
Legal Document Review Prompting: Clause Extraction Without Hallucinated Citations
The grounding techniques that keep LLMs honest with legal text
Every Post
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Complete examples you can copy and adapt immediately
Model Coverage
Agnostic
Claude, GPT, Gemini, Llama -- differences noted where they matter
Voice
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Written for people who use these techniques, not just read about them
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Fresh techniques and applied prompting guides published every day
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