PLANS For Fable 5: Rebuilding My /Plan Skill for Mythos Class Models
Summary
Engineers... the future is built by those who PLAN it, not those who vibe code it. 🔥 The recently banned Fable 5 and Mythos class models just unlocked a whole new level of planning, and great planning IS great engineering. Most engineers hand their /plan off to the model and pray. That's the mass deprecation of raw engineering talent in real time. 🎥 VIDEO REFERENCES - GET THE /PLANF3 SKILL: https://github.com/disler/planf3 - Tactical Agentic Coding: https://agenticengineer.com/tactical-agentic-coding?y=DzbqeO_diOQ - PI to PI Agent Communication: https://youtu.be/PIdETjcXNIk - Fable 5: https://www.anthropic.com/news/claude-fable-5-mythos-5 - Fable 5…
Related: OpenAI: Warp’s big bet on building open source with GPT-5.5 · Google: GLM-5.2 vs MiniMax-M3: Opus Has REAL COMPETITION (Model Stacking) · Microsoft: Building AX evals that actually work · Meta: Developer Tools MCP: Connect Your AI Agent to Meta's Developer Platform in Under 10 Minutes · xAI: Introducing Grok 4.5: Fast, affordable intelligence
Rated low: routine. Worth knowing, not worth rearranging your day for.
- Claude Fable Blocked - 11 Quiet Details on What’s NextAI Explained · Web · Jun 14, 2026
- They think FOOM is nearDavid Shapiro · Web · Jun 14, 2026
- Pi Coding Agent Observability: HTML Specs with Gemini 3.5 Flash and GPT Image 2IndyDevDan
- State of AI in 2026: LLMs, Coding, Scaling Laws, China, Agents, GPUs, AGI | Lex Fridman Podcast #490Lex Fridman
- Claude Mythos: Highlights from 244-page ReleaseAI Explained
- An initiative to secure the world's software | Project GlasswingAnthropic on YouTube
- Claude Fable 5 BANNED: The First Model Agentic Engineers DON'T NEEDIndyDevDan
- Top #1 Opportunity for Senior Engineers: Agentic EngineeringIndyDevDan
Questions people ask
- Where can I read the full video?
- On IndyDevDan. The "Read this on IndyDevDan" link above opens the original in a new tab. Subvolts publishes a summary and analysis, never the full piece.
- What does this mean for Claude?
- Engineers... the future is built by those who PLAN it, not those who vibe code it. 🔥 The recently banned…
More from IndyDevDan 12 more
Page generated Sep 3, 2026. Summaries are Subvolts' own; the story belongs to IndyDevDan.