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MCP DB Hub 0.3.0 — Shared business ontologies

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@SamuelSupe SamuelSupe released this 12 Sep 02:49
v0.3.0
8d9aa03

MCP DB Hub 0.3.0 adds shared business ontologies with independent, version-pinned mappings for each authorized data source. Define Customer and Order once, map PostgreSQL tables and MongoDB documents separately, then let Agents discover the relevant native query templates.

What is included

  • English Ontologies management and Semantics → Ontology mapping, with multilingual business definitions, single inheritance, entity identity, properties, relationships and declarative cardinality.
  • Encrypted drafts, immutable versions, explicit upgrade differences, atomic source publication, metadata verification and administrator-declared fields. Referenced versions are protected from deletion.
  • Source-authorized concept discovery through the existing 14 MCP tools. Native template results include ontology_context; definition-only changes preserve query trials and running executions.
  • Semantic JSON v2 with v1 import compatibility, PostgreSQL/MongoDB reuse examples, English and Chinese guides, and ontology correlation in audit records and OTLP Logs.
  • Includes the semantic catalogs, verified query templates and templates-only access introduced during the 0.2.0 development cycle.

Installation

Choose linux-arm64 or linux-amd64, download its archive plus SHA256SUMS, and verify the archive checksum. Extract the entire directory and run ./mcpdbhub serve; the bundled launcher keeps the required private libraries together. Linux glibc 2.36 or newer is required. No Node.js runtime is needed.

English installation · 中文安装说明 · Ontology guide · 本体指南

Back up the configuration database and its separate master key before upgrading. Existing sources remain unbound, with their grants, query modes and template trial evidence preserved. Short-lived pagination must restart after relevant publication or version changes.

Actual verification

  • OrbStack: all 18 database products / 20 version combinations, seven query families, 132 native query/error cases, 89 denied operations, unchanged target data, and template/native equivalence with ontology mappings.
  • Real shared Customer/Order acceptance on PostgreSQL and MongoDB, plus authorization projection, immutable version lifecycle, conflicts, encrypted restart recovery and request-start context checks.
  • Local Chrome: create/edit/import/export, invalid definitions, both source mappings, Agent preview, independent version adoption, keyboard behavior and 390×844 layout.
  • Native GitHub Linux amd64/arm64 CI: Go tests, race checks, embedded UI and CLI builds. Both actual dist archives independently passed 33 checks, then were downloaded from GitHub and checked again, including HTTP/stdio, ontology context, OTLP and restart recovery.

The attached VALIDATION.json records the exact commit, checks and platform scope. Local amd64 package checks run through OrbStack emulation; the external database matrix runs on arm64.

This feature supplies definitions and query guidance. It does not store entity instances, infer facts, compile cross-source queries, convert native results into unified entities, or claim full OWL 2 / SHACL conformance.

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