Descriptions:
Opus 5 is one of the BEST models ever released, and one of the WORST to talk to. Verbose, “load-bearing” everywhere, torching your output tokens. So we FIX it with the skill everyone said was dead: PROMPT ENGINEERING. 🔥
🎥 VIDEO REFERENCES
• Fix Opus 5 Codebase: https://github.com/disler/fixing-smartass-opus-5
• Software Factory (Advanced): https://youtu.be/haUfb1ievTE
• Zucks Post: https://www.meta.com/thefutureisforeveryone/?srsltid=AfmBOoqCUQLgMU5sfTup2SoH9ZpFlQ_wwSMLzccQkoziF-mR5iiDExgI
PUSH YOUR AGENTIC ENGINEERING BEYOND
Tactical Agentic Coding: https://agenticengineer.com/tactical-agentic-coding?y=S_QdQ1G4GlU
🚀 In this video, IndyDevDan turns smartass Claude Opus 5 into a precise senior engineer with SYSTEM prompt engineering. There are two ways to prompt your AI coding agents: the user prompt (one task) and the system prompt (the LAW for every task). Most engineers fixate on the user prompt and skills. The real leverage is the system prompt, where every word you write gets multiplied over every single prompt in and every response out of Claude Code.
🛠️ Key takeaways:
Positive + Negative Patterns: Tell your agent exactly what to replicate and exactly what to avoid (goodbye “load bearing”, “worth stating plainly”, em dash chains).
Reference Points: Encode D1/R1/F1 style codes so you and your agent build a fast shared language and stop repeating tokens.
Hard Operational Boundaries: Deliver ONLY what was requested. No scope creep, no surprise refactors, no co-author commit messages.
Aliases: SCR, ELI, FOC, REF. Micro skills baked into your system prompt that expand into full instructions on demand.
Examples (In-Context Distillation): Show real do/don’t responses, even pulling responses from models you like, to lock in communication patterns.
💡 The system prompt is where prompt engineering pays off most because it applies across EVERY user prompt. Great engineering is great communication, and with agents, you communicate through prompts. Master the system prompt and you control your model’s verbosity, cost, and quality, no matter which state-of-the-art model ships next.
🌟 Keep the smart, drop the ass. If you understand your tools, you understand the results you can get from them. Your system prompt is the law for your agents. Use it.
Stay Focused and Keep Building.
IndyDevDan
📖 Chapters
00:00 Opus 5: The Best Worst Model Ever Released
01:53 System Prompt Engineering
02:49 Fixing Smartass Opus 5
04:43 System Prompt BEATS User Prompt
08:06 Positive AND Negative Prompt Engineering
13:22 Reference Points
16:44 Hard Operational Boundaries
18:38 Prompt Aliases
26:40 Example Distillation
#promptengineering #agenticengineering #claudecode
