Blekline governs prompts and tool calls at ingress. Frameworks and vector DBs stay downstream — Blekline masks before data enters agent context or tool arguments.
Comparison
| Integration | Type | Doc |
|---|---|---|
| LangChain | Framework | Chain + tools |
| LlamaIndex | Framework | Query engine |
| PydanticAI | Framework | Typed agents |
| TaskWeaver | Framework | Code plugins |
| Relevance AI | Framework | Agent chains |
| Supabase | Vector | pgvector |
| Chroma | Vector | Embeddings |
| Pinecone | Vector | Managed index |
| Contextual AI | Vector | Enterprise RAG |
Pattern
User query → Blekline mask → Framework / RAG → Tools (via mcp-proxy policy) → Models
Do not pass raw PII in embedding queries. Use [MCP proxy](/docs/mcp/proxy) to enforce retrieval/write tool policy.
Next steps: MCP proxy · TypeScript SDK · Agent clients · Open workspace