ra-h-os/docs/8_mcp.md

MCP Surface

RA-H exposes MCP tools for direct graph work against the local database or app API.

Core MCP Contract

• getContext returns graph orientation: stats, contexts, hubs, and skills.
• createNode and updateNode accept optional context_id but do not require context.
• queryNodes searches title, description, and source, with optional context filters.
• dimensions are removed from the MCP contract.

Main Tools

Read:

• getContext
• queryNodes
• queryContexts
• getNodesById
• queryEdge
• listSkills
• readSkill
• searchContentEmbeddings
• sqliteQuery

Write:

• createNode
• updateNode
• createEdge
• updateEdge
• writeSkill
• deleteSkill

Tool Behavior

• Always search before creating.
• Prefer explicit context assignment when the primary scope is clear.
• Do not expect automatic context assignment.
• Judge graph quality by node quality and edges, not taxonomy completeness.