# kg_search Unified Knowledge Graph KNOWLEDGE retrieval — facts, themes and relationships from INSIDE document CONTENT. This is NOT an artefact finder: do NOT use it to locate a document / whiteboard / diagram / plan / task / improvement by its TITLE or friendly id (e.g. "DOC-123", "find the GTM plan"). For locating an artefact by name or id use listDocuments / listWhiteboards / listPlans / listTasks / searchImprovements (they match title + friendly id). Use kg_search only to ANSWER A QUESTION from the knowledge contained in the artefacts. PICK THE MODE THAT FITS THE QUERY: • mode='local' (default) — for SPECIFIC factual questions ("what does §15 say about deposits?", "who is the Chief Counsel?"). FTS+vector RRF over individual document chunks. Returns precise excerpts with citations. • mode='global' — for THEMATIC / OVERVIEW / SUMMARY questions ("what are the main themes", "give me an overview of the project", "what topics does this cover"). Returns Louvain community summaries + curated wiki pages — far better than 'local' for big-picture queries because community summaries already aggregate across many chunks. ALWAYS PREFER over 'local' when the user asks for themes / summary / overview / topic landscape. • mode='graph' — for RELATIONSHIP questions ("what's connected to entity X?", "who cites Section 5?"). 1-hop entity-neighbourhood walk. Pass query OR srcEntityId. • mode='path' — for CONNECTION questions ("how does X relate to Y?"). Shortest path between two entities. Pass srcEntityId AND dstEntityId. • mode='ppr' — for MULTI-HOP discovery ("what's relevant to X, even indirectly?"). Personalised PageRank over AUTHORED-vs-EXTRACTED weighted edges, seeded by query-similar entities. Best when 'local' returns too few results and the answer requires walking through several entity hops. Quick decision tree: - User asks for an overview/summary/themes → 'global' - User asks a specific question with a clear answer → 'local' - User asks 'how is X connected to Y' → 'path' (with both entity IDs) - User asks 'what's near entity X' → 'graph' (with srcEntityId) - 'local' returned nothing useful and the question is broad → retry with 'ppr' Agent View of the PolicyLayer registry record for `kg_search`. HTML page: https://policylayer.com/tools/io-stablebaseline-sb/kg-search ## Facts - Tool: `kg_search` - Server: Stable Baseline (`https://api.stablebaseline.io/functions/v1/cloud-serve/mcp`) — https://policylayer.com/tools/io-stablebaseline-sb.md - Homepage: https://github.com/stablebaseline/mcp - Risk category: Read (Low risk) - Registry record: grade F, identity unverified - Server auth posture: open - Server CORS policy: https://app.stablebaseline.io - Server rate-limited: no - Parameters: 8 - Recommended policy verdict: Allowed ## Parameters | Parameter | Type | Required | Description | | --- | --- | --- | --- | | `mode` | string | no | Retrieval strategy. See tool description for when to use each — strongly prefer 'global' for thematic/overview questions. | | `depth` | number | no | Hop depth for graph/path modes. | | `limit` | number | no | | | `query` | string | no | Natural-language query. Required for local/global/ppr; optional for graph (use srcEntityId instead). | | `projectId` | string | no | | | `dstEntityId` | string | no | Required for mode='path'. Target entity to find a path TO. | | `srcEntityId` | string | no | Required for mode='path'. Optional source entity for mode='graph'. | | `workspaceId` | string | no | | Parameters from the server's own tool schema. ## Example call (MCP tools/call, JSON-RPC 2.0) ```json { "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "kg_search", "arguments": {} } } ``` ## Why kg_search is rated Low kg_search retrieves and queries knowledge graph data without creating, modifying, executing commands, or deleting information. It has no side effects beyond returning information. The emphasis on it being for "answering questions" from existing content confirms read-only semantics. From the tool's own definition: "Tool description explicitly states it performs 'KNOWLEDGE retrieval — facts, themes and relationships from INSIDE document CONTENT' and emphasizes 'Use kg_search only to ANSWER A QUESTION from the knowledge contained in the artefacts.' The description…" ## Use case AI agents call kg_search to retrieve information from Stable Baseline without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere. ## Recommended policy (PolicyLayer) Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Stable Baseline: ```json { "version": "1", "default": "deny", "tools": { "kg_search": {} } } ``` ## Other tools on Stable Baseline (195) - `cancelAllKgInScope` — Destructive — https://policylayer.com/tools/io-stablebaseline-sb/cancelallkginscope.md - `cancelKgBuildBatch` — Destructive — https://policylayer.com/tools/io-stablebaseline-sb/cancelkgbuildbatch.md - `deleteDiagramInDocument` — Destructive — https://policylayer.com/tools/io-stablebaseline-sb/deletediagramindocument.md - `deleteDocument` — Destructive — https://policylayer.com/tools/io-stablebaseline-sb/deletedocument.md - `deleteFolder` — Destructive — https://policylayer.com/tools/io-stablebaseline-sb/deletefolder.md - `deleteImageInDocument` — Destructive — https://policylayer.com/tools/io-stablebaseline-sb/deleteimageindocument.md - `deleteImprovement` — Destructive — https://policylayer.com/tools/io-stablebaseline-sb/deleteimprovement.md - `deleteImprovementCategory` — Destructive — https://policylayer.com/tools/io-stablebaseline-sb/deleteimprovementcategory.md - `deleteImprovementComment` — Destructive — https://policylayer.com/tools/io-stablebaseline-sb/deleteimprovementcomment.md - `deletePlan` — Destructive — https://policylayer.com/tools/io-stablebaseline-sb/deleteplan.md - `deletePlanComment` — Destructive — https://policylayer.com/tools/io-stablebaseline-sb/deleteplancomment.md - `deletePlanPhase` — Destructive — https://policylayer.com/tools/io-stablebaseline-sb/deleteplanphase.md - `deleteResourcePermission` — Destructive — https://policylayer.com/tools/io-stablebaseline-sb/deleteresourcepermission.md - `deleteTaskDependency` — Destructive — https://policylayer.com/tools/io-stablebaseline-sb/deletetaskdependency.md - `deleteTeam` — Destructive — https://policylayer.com/tools/io-stablebaseline-sb/deleteteam.md - `deleteVegaDataFile` — Destructive — https://policylayer.com/tools/io-stablebaseline-sb/deletevegadatafile.md - `deleteWhiteboard` — Destructive — https://policylayer.com/tools/io-stablebaseline-sb/deletewhiteboard.md - `removeMember` — Destructive — https://policylayer.com/tools/io-stablebaseline-sb/removemember.md - `removeTeamMember` — Destructive — https://policylayer.com/tools/io-stablebaseline-sb/removeteammember.md - `removeWorkspaceMember` — Destructive — https://policylayer.com/tools/io-stablebaseline-sb/removeworkspacemember.md - `resetDocumentInBrain` — Destructive — https://policylayer.com/tools/io-stablebaseline-sb/resetdocumentinbrain.md - `revokeTeamWorkspaceAccess` — Destructive — https://policylayer.com/tools/io-stablebaseline-sb/revoketeamworkspaceaccess.md - `autoDesignWhiteboard` — Execute — https://policylayer.com/tools/io-stablebaseline-sb/autodesignwhiteboard.md - `renderDiagram` — Execute — https://policylayer.com/tools/io-stablebaseline-sb/renderdiagram.md - `startMeetingScribe` — Execute — https://policylayer.com/tools/io-stablebaseline-sb/startmeetingscribe.md - `stopMeetingScribe` — Execute — https://policylayer.com/tools/io-stablebaseline-sb/stopmeetingscribe.md - `triggerKgRebuild` — Execute — https://policylayer.com/tools/io-stablebaseline-sb/triggerkgrebuild.md - `applySubscriptionChange` — Financial — https://policylayer.com/tools/io-stablebaseline-sb/applysubscriptionchange.md - `cancelSubscription` — Financial — https://policylayer.com/tools/io-stablebaseline-sb/cancelsubscription.md - `getCustomerPortalLink` — Financial — https://policylayer.com/tools/io-stablebaseline-sb/getcustomerportallink.md - …and 165 more: https://policylayer.com/tools/io-stablebaseline-sb.md ## For agents This record is a snapshot. Live verdicts and the full registry: - Check every server in your MCP config at once: `npx -y policylayer stack` - Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md) - Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events` --- Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=io-stablebaseline-sb · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-stablebaseline-sb