Changelog
All notable changes to the Marble Skill Taxonomy dataset are documented here.
Dataset releases are versioned independently of the taxonomy version field
(the underlying taxonomy is v1).
[1.0.0] — 2026-07-08
Initial public release.
Included
- 1,590 micro-topics across 8 subjects (
data/topics.json).
- 3,221 prerequisite dependencies with
hard/soft strength + reasons (data/dependencies.json).
- 7 curricula / 3,261 standards with 1,859 topic↔standard links (
data/curriculum-standards.json).
- 183 domain clusters (
data/clusters.json).
- JSON Schemas + a dependency-free validator.
Curriculum text shipped
- Full text: UK National Curriculum (OGL v3.0), Common Core ELA + Math (CCSS Public License).
- Codes only (verbatim text omitted pending rights clearance): NGSS K-5 + Middle School, C3 Framework, IB PYP PSPE. See PROVENANCE.md.
Excluded
- Semantic embeddings (derived / recomputable).
- All per-child and user data (never published).