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https://github.com/trustgraph-ai/trustgraph.git
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d35473f7f7
Introduces `workspace` as the isolation boundary for config, flows,
library, and knowledge data. Removes `user` as a schema-level field
throughout the code, API specs, and tests; workspace provides the
same separation more cleanly at the trusted flow.workspace layer
rather than through client-supplied message fields.
Design
------
- IAM tech spec (docs/tech-specs/iam.md) documents current state,
proposed auth/access model, and migration direction.
- Data ownership model (docs/tech-specs/data-ownership-model.md)
captures the workspace/collection/flow hierarchy.
Schema + messaging
------------------
- Drop `user` field from AgentRequest/Step, GraphRagQuery,
DocumentRagQuery, Triples/Graph/Document/Row EmbeddingsRequest,
Sparql/Rows/Structured QueryRequest, ToolServiceRequest.
- Keep collection/workspace routing via flow.workspace at the
service layer.
- Translators updated to not serialise/deserialise user.
API specs
---------
- OpenAPI schemas and path examples cleaned of user fields.
- Websocket async-api messages updated.
- Removed the unused parameters/User.yaml.
Services + base
---------------
- Librarian, collection manager, knowledge, config: all operations
scoped by workspace. Config client API takes workspace as first
positional arg.
- `flow.workspace` set at flow start time by the infrastructure;
no longer pass-through from clients.
- Tool service drops user-personalisation passthrough.
CLI + SDK
---------
- tg-init-workspace and workspace-aware import/export.
- All tg-* commands drop user args; accept --workspace.
- Python API/SDK (flow, socket_client, async_*, explainability,
library) drop user kwargs from every method signature.
MCP server
----------
- All tool endpoints drop user parameters; socket_manager no longer
keyed per user.
Flow service
------------
- Closure-based topic cleanup on flow stop: only delete topics
whose blueprint template was parameterised AND no remaining
live flow (across all workspaces) still resolves to that topic.
Three scopes fall out naturally from template analysis:
* {id} -> per-flow, deleted on stop
* {blueprint} -> per-blueprint, kept while any flow of the
same blueprint exists
* {workspace} -> per-workspace, kept while any flow in the
workspace exists
* literal -> global, never deleted (e.g. tg.request.librarian)
Fixes a bug where stopping a flow silently destroyed the global
librarian exchange, wedging all library operations until manual
restart.
RabbitMQ backend
----------------
- heartbeat=60, blocked_connection_timeout=300. Catches silently
dead connections (broker restart, orphaned channels, network
partitions) within ~2 heartbeat windows, so the consumer
reconnects and re-binds its queue rather than sitting forever
on a zombie connection.
Tests
-----
- Full test refresh: unit, integration, contract, provenance.
- Dropped user-field assertions and constructor kwargs across
~100 test files.
- Renamed user-collection isolation tests to workspace-collection.
94 lines
2.9 KiB
YAML
94 lines
2.9 KiB
YAML
post:
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tags:
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- Flow Services
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summary: Graph Embeddings Query - find similar entities
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description: |
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Query graph embeddings to find similar entities by vector similarity.
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## Graph Embeddings Query Overview
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Find entities semantically similar to a query vector:
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- **Input**: Query embedding vector
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- **Search**: Compare against stored entity embeddings
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- **Output**: Most similar entities (RDF URIs)
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Core component of graph RAG retrieval.
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## Use Cases
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- **Entity discovery**: Find related entities
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- **Concept expansion**: Discover similar concepts
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- **Graph exploration**: Navigate by semantic similarity
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- **RAG retrieval**: Get entities for context
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## Process
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1. Obtain query embedding (via embeddings service)
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2. Query stored entity embeddings
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3. Calculate cosine similarity
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4. Return top N most similar entities
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5. Use entities to retrieve triples/subgraph
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## Similarity Scoring
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Uses cosine similarity between vectors:
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- Results ordered by similarity (most similar first)
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- No explicit similarity scores returned
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- Limit controls result count
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## Entity Format
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Returns RDF values (entities):
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- URI entities: `{v: "https://...", e: true}`
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- These are references to knowledge graph entities
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- Use with triples query to get entity details
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operationId: graphEmbeddingsQueryService
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security:
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- bearerAuth: []
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parameters:
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- name: flow
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in: path
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required: true
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schema:
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type: string
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description: Flow instance ID
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example: my-flow
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requestBody:
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required: true
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content:
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application/json:
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schema:
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$ref: '../../components/schemas/embeddings-query/GraphEmbeddingsQueryRequest.yaml'
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examples:
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basicQuery:
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summary: Find similar entities
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value:
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vectors: [0.023, -0.142, 0.089, 0.234, -0.067, 0.156, 0.201, -0.178]
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limit: 10
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collection: research
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largeQuery:
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summary: Larger result set
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value:
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vectors: [0.1, -0.2, 0.3, -0.4, 0.5]
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limit: 50
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responses:
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'200':
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description: Successful response
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content:
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application/json:
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schema:
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$ref: '../../components/schemas/embeddings-query/GraphEmbeddingsQueryResponse.yaml'
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examples:
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similarEntities:
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summary: Similar entities found
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value:
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entities:
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- {v: "https://example.com/person/alice", e: true}
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- {v: "https://example.com/person/bob", e: true}
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- {v: "https://example.com/concept/quantum-computing", e: true}
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- {v: "https://example.com/concept/machine-learning", e: true}
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'401':
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$ref: '../../components/responses/Unauthorized.yaml'
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'500':
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$ref: '../../components/responses/Error.yaml'
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