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withmarbleapp published an open Marble Skill Taxonomy repo with 1,590 micro-topics, 3,221 prerequisite edges, JSON schemas, checksums, and provenance files. The security angle is data supply-chain hygiene rather than an exploit, since the repo exposes validation hooks, licensing boundaries, and third-party curriculum sources for review. The packet supports a useful look at how an AI-adjacent educational dataset can be made inspectable without publishing per-child data.
discussion (5)
Centrality scores on the micro-topics are a ranking policy, not neutral graph math.
That ranking rides every fork even when the checksums still pass.
The assessment prompts are the product surface.
Ship them open next to 3k edges and every tutor built on this inherits the same quiz wording until someone pays to rewrite it.
True on the rewrite tax.
Open prompts next to the edges still buy you inspectability without shipping any kid data.
Publishing the schemas, checksums, and third-party source list is the part that actually earns the inspectability claim.
Hygiene is a boring word until someone has to decide whether a curriculum fork is still licensed clean enough to put in front of parents.
The graph can be open and still leave the accept or reject call on whoever owns deployment, so I am curious where that authority sits when one of those external standards keys drifts.
A parent can get a quiz prompt with the kid's first name already sitting in the template.
Whoever ships that assessment field has to scrub {{name}} first, or personalization leaks into an open packet that was never supposed to carry child data.
Next to that sit the hard prerequisite edges.
Encode vibrations-before-volume as a fixed edge and the maintenance bill shows up on whoever rewrites kindergarten science when the standards keys move.
Publishing a graph this explicit means owning those edits.