--- title: "Fable 5 Rules Anthropic Doesn’t Want You to know" url: https://daily.dev/posts/fable-5-rules-anthropic-doesn-t-want-you-to-know-puxav4i9a source_url: https://www.youtube.com/watch?v=GM7-ei-4Xc8 type: video:youtube source: "AI LABS" published: 2026-07-06T14:43:46.456Z updated: 2026-07-06T14:45:12.315Z tags: ["ai-agents", "claude", "ai-coding", "code-review", "tdd"] reading_time: 13 upvotes: 1 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Fable 5 Rules Anthropic Doesn’t Want You to know **[AI LABS](https://daily.dev/sources/ailabs-393)** · 13 min read · 1 upvotes · 0 comments ## Summary Practical tips for getting the most out of Claude's latest model (referred to as 'Fable 5') in software development workflows. Key recommendations include keeping the effort setting between low and high to avoid wasted usage, using larger models for planning and smaller ones for implementation, leveraging TDD with a separate sub-agent to write tests before coding, using the Ponytail plugin to reduce code volume, and running dedicated security and code review sub-agents in parallel. Also covers creating HTML mockups before implementing features and quizzing yourself on agent changes before merging to maintain codebase awareness. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [How to Get the Most Out of Claude Fable 5](https://daily.dev/posts/how-to-get-the-most-out-of-claude-fable-5-mvgxo9hro) · Towards Data Science · 2 upvotes · 0 comments --- Tags: [#ai-agents](https://daily.dev/tags/ai-agents), [#claude](https://daily.dev/tags/claude), [#ai-coding](https://daily.dev/tags/ai-coding), [#code-review](https://daily.dev/tags/code-review), [#tdd](https://daily.dev/tags/tdd) [View this post on daily.dev](https://daily.dev/posts/fable-5-rules-anthropic-doesn-t-want-you-to-know-puxav4i9a)