brain_kernel 0.1.0

Headless system kernel for knowledge-grounded multi-agent systems. Bundles project / canonical / patch / validate / build / MCP / chat / RAG over mcp_bundle and flowbrain_core. Products (builder / ind [...]

0.1.0 - 2026-05-23 - Initial release

First public release of brain_kernel. Headless system kernel that wraps mcp_bundle and flowbrain_core with the project / canonical / patch / validate / build / MCP / chat / RAG pieces every host needs, and exposes the BundleActivation standard API that hosts (AppPlayer Core, vibe_studio, future hosts) use to manage per-bundle catalog lifecycle.

Added

• Core layer — project, canonical store, patch pipeline, asset validator, undo/redo stack, prefs / chat-log / history-log / undo-log sidecars.
• Feature layer — BM25 index, gold-question runner, asset extractor
  • reviewer queue, asset-touch observer.
• Infra layer — bundle reader / knowledge writer / mcpb packager, embedding runner, BM25 query engine + bundle registry, domain storage, FlowBrain wiring (KvStoragePort adapter, runtime probe, LLM port adapter, FlowDefinitionWorkflow), MCP server bootstrap (tool scope + transport picker + server bootstrap), agent LLM sessions, agent chat controller + system-prompt composer.
• System layer — BundleActivation + BundleActivationRegistry: the canonical asset-registration standard. Per-bundle catalog via <bundleId>.<asset.id> prefixing; idempotent registration; one registry handles N concurrent activations.
• Re-exports — flowbrain_core, mcp_bundle, mcp_server, and a selected slice of mcp_client are re-exported so products can stay on the kernel as the single MCP surface (FR-CMP-002).

Dependencies

• mcp_bundle: ^0.4.0
• flowbrain_core: ^0.1.2
• mcp_llm: ^2.1.1
• mcp_knowledge_ops: ^0.2.1
• mcp_server: ^2.0.0, mcp_client: ^2.0.0