mdn-data
reference corpus · status live · domain WEB (Web and frontend platform) · lane A · refresh pinned · tags GLOBAL · CSS · DATA · MDN · METADATA · JSON
What an agent uses it for
An agent needing structured CSS/JS metadata (properties, at-rules, selectors, syntaxes, API inventory) queries this for MDN's machine-readable data.
curl -fsSLO https://raw.githubusercontent.com/xerj-org/xerj/corpus-hub/tools/xerj-code/hub/mdn-data.jsonxerj corpus add --from ./mdn-data.jsonxerj corpus index mdn-data then xerj code mdn-data "your question"Needs the xerj CLI and a local node running; the copy prompt covers both, checks each step, and shows how to stop only the node you started. No shell: the MCP tool xerj_code_search with corpus: "mdn-data", once the corpus is indexed on the node.
Sources and pins
| source | pin | licence | size | review note |
|---|---|---|---|---|
| data | 2c16ea05c1f1 | CC0-1.0 | 879.3 KB / 61 files | licence host-verified (ok-spdx): CC0-1.0 |
879.3 KB across 61 files. Added 2026-10-13.
Rights
CC0-1.0. Redistribution permitted with attribution per the licence review. The review block records a human opening each licence file at the pin. Detector output is a hint, never the verdict.
Retrieval spot-check (G7)
Not yet spot-checked. Queries are pre-registered in the registry before grading.