{
  "source": {
    "spec": "User request: convert https://www.deeplearningbook.org/ into a shareable skill.",
    "build_pattern": "Companion, not compilation. Follows the book-to-skill OUTPUT SHAPE (master SKILL.md under 4k tokens with a chapter index and topic index, chapters/chNN-*.md, glossary.md, patterns.md, cheatsheet.md — validated by book-to-skill's own book_skill_validator.py) while deliberately NOT running its extraction pipeline. Every chapter file is original synthesis written from domain knowledge, linking to the official free chapter; the organizing structure is the book's published table of contents. Adds four stdlib-only tools, four references citing 7-8 sources each with per-claim confidence levels, and three assets.",
    "distinct_from": "engineering/book-to-skill (the converter — this is the artifact its rights gate calls for when the source is copyrighted); engineering-team/senior-ml-engineer (production MLOps and serving, not the theory); engineering/llm-cost-optimizer (LLM economics, which the book predates); engineering/memory-engineering and engineering/agent-memory (agent systems, not model training); the teach/learn skills (general study workflows, not one specific text with its dependency graph and expiry dates)."
  },
  "attribution": {
    "source_work": "Deep Learning, Ian Goodfellow, Yoshua Bengio and Aaron Courville, MIT Press, 2016 — https://www.deeplearningbook.org/. All rights remain with the authors and publisher. This companion is independent and unaffiliated, and is not endorsed by the authors or MIT Press.",
    "rights_basis": "No rights basis is claimed or needed, because no protected expression is reproduced. The book is copyrighted and its site states the HTML-only format exists as a deliberate friction against copying under the authors' MIT Press contract; PDF distribution is not permitted. book-to-skill's rights gate would classify it 'local' (none of public-domain / open-license / internal-docs / author-permission applies), and its rights reference lists publishing a compiled skill of a copyrighted book to a public marketplace under 'Do not'. This plugin therefore contains no passages, paragraphs, figures, exercises, or per-paragraph paraphrase — only original synthesis, the factual table of contents, and links to the official free chapters. See skills/deep-learning-book/references/rights_and_use.md.",
    "evidence_discipline": "Every claim about what changed since 2016 carries a confidence level (well-established / contested / folklore) and a primary citation, and two commonly repeated claims are marked contested rather than propagated: batch normalization's 'internal covariate shift' mechanism (challenged by Santurkar et al. 2018) and the strong form of the lottery-ticket hypothesis. Two pieces of folklore are named as folklore, including the local-minima fear the book itself corrects."
  }
}
