Draft capability entry (reuse-surface REUSE-WP-0017-T04, cohort 1)

Honest first-pass maturity vector grounded in README/docs/tests present
in this repo; no invented evidence. Flagged for human review before
publish. See reuse-surface history/2026-07-06-coverage-classification.md.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

registry/indexes/capabilities.yaml

@@ -1,4 +1,20 @@
 version: 1
-updated: '2026-06-16'
+updated: '2026-07-06'
 domain: inter_hub
-capabilities: []
+capabilities:
+- id: capability.infotech.hub-core-library
+  name: Reusable FOS Hub Core Primitives
+  summary: Reusable FastAPI, SQLAlchemy, and MCP primitives extracted from the State Hub for use by other
+    FOS (Federation of Services) hubs.
+  vector: D2 / A1 / C1 / R1
+  domain: infotech
+  status: draft
+  owner: hub-core
+  path: registry/capabilities/capability.infotech.hub-core-library.md
+  tags:
+  - hub
+  - fastapi
+  - sqlalchemy
+  - mcp
+  consumption_modes:
+  - library import