5h ago
OpenRouter's Model Fusion: Ensemble LLMs for Superior Outputs
- Public experiment from OpenRouter Labs: Runs your prompt through many models side-by-side and fuses the best answer.
- Analyzes outputs with a...
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Prompt Engineering Playbook
Created by Hoaks Smith
Practical guides, research, and case studies for debugging, multimodal, RAG, and production prompt optimization
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Recent Posts
Explore the latest content tracked by Prompt Engineering Playbook
5h ago
Stacking Advanced Prompts + Secure Management + Zero-Code Observability for Bulletproof LLM Apps
Emerging trend: Layer these tools to slash hallucinations, block injections, and debug production failures.
- Advanced prompting (CoT, Few-Shot, RAG...
5h ago
AI Agent Framework: English Prompts to Playwright Code via OpenAI
Dynamic test automation with Playwright: Give plain English instructions like "Open Google, search Playwright, click first link and screenshot"—AI...
5h ago
Quick Tip: LLM Agents for Log-Space Viz of Training Debug Stats
Pro tip for agent workflows: Prompt LLM agents to visualize log-space progress bars of losses or debug stats using unicode block elements – makes spotting spikes and steep drops effortless during training.
8h ago
Prompt Engineering Playbook · Apr 4 Daily Digest
Gemma 4 Open-Source Launch
- 🔥 Google Gemma 4: Google launched Gemma 4, a fully open-source multimodal model under Apache 2.0 licensed, runnable...
9h ago
Prompt Competence Drives Sustainable GenAI Use in Education
Key model from 437-student study:
- Prompt engineering competence predicts knowledge acquisition/application
- Which enable task/individual-tech fit...
9h ago
Leaked Prompts from 28+ AI Coders: Key Insights for IDE Agent Prompts
- Massive prompt repo: System prompts from 28+ AI coding tools hit 134K GitHub stars, revealing core mechanics.
- Claude Code depth: Leak exposes...
9h ago
Responses API Case Studies: Prod-Scale Agent Monitoring & Deep Reasoning
Anthropic's Responses API equips agents with hosted tools for reliable production workflows, used by thousands across industries.
- Raindrop AI...
9h ago
2026 Trend: Prompt Ops Stacks for Production Reliability
Production-grade platforms now integrate prompt versioning with evals and monitoring to debug LLM reliability:
- Maxim AI: Full lifecycle—version...
9h ago
Gemma 4: Fine-Tune and Deploy Efficient Open Models Locally with Unsloth
Gemma 4 launches as Apache 2.0 open-source family (E2B/E4B multimodal, 26B-A4B MoE, 31B dense) for on-device/laptop inference, up to 256K context.
-...
9h ago
Top Open-Source Tools for Production LLM Agents & RAG Automation
Key frameworks for building scalable LLM automation with agents and RAG:
- LlamaIndex (44.8k stars): Data ingestion/indexing for RAG, agentic...
9h ago
Trend: Guardrails for Secure LLM Agents in Code Gen and Prompts
- Agent Verifier open-sources local audits for AI-generated code in agents like Claude Code/Cursor, catching loops, retry limits, tool hallucinations,...
9h ago
Trend: Avoid Context Bloat in RAG for Latency/Cost Wins
Rising trend in LLM prod: Shoving 10+ docs or 1,500 pages into prompts crashes unit economics, spikes latency, and drops quality.
- Speed boost:...
9h ago
Research + Google Tools to Make Code Agents Admit Uncertainty and Skip Old APIs
Two angles to tame hallucinations in code gen agents:
- Research fix: Detect unanswerability via linear directions in hidden states, pushing LLMs...
9h ago
1-Day Prompt Engineering Essentials for Devs Integrating AI Tools
Supercharge dev workflows with GPT-4 in this hands-on 1-day course:
- Preprocessing & tokenization: Clean text via Python/NLTK, format inputs, handle...
9h ago
Taxonomy vs. Bitter Lesson: Simpler Prompts for Reliable LLM Design?
Debating prompt strategies for devs:
- Comprehensive taxonomy structures techniques into Profile/Instruction, Knowledge, Reasoning/Planning, and...
9h ago
Copilot Shifts to Action Agents: Multi-Step Workflows in M365
Microsoft's Copilot Cowork transforms agents from generation to action-driven automation in M365:
- Users describe outcomes; it plans, executes across...
9h ago
Hybrid Claude Code Orchestration Trends in ERP Dev Pipelines
Claude Code integrations are trending for specialized dev tasks via hybrids and IDEs:
- DeepSeek-R1 + Claude Sonnet hybrid workflow tackles LLM...
9h ago
OpenClaw Node VS Code: Agent Workflow Wins and Windows Friction
Key wins for IDE-integrated agents:
- Reads workspace files, applies local skill instructions, writes back via VS Code API.
- Exposes 40+ IDE...
9h ago
30-Day Roadmap to Master Claude for Coding/Analysis
Practical 30-day plan to learn Claude in 2026:
- Co-working workflows for seamless dev collaboration
- Projects focused on coding, analysis, and content
- Harness long-context Claude models for real workflows