Teradata lineage and dependency graph analysis

.gitignore

@@ -18,3 +18,4 @@ test_*.py
 .planning/
 .ruff_cache/
 Start_MCP_Server.bat
+

src/teradata_mcp_server/app.py

@@ -34,6 +34,7 @@
 from teradata_mcp_server.config import Settings
 from teradata_mcp_server.middleware import RequestContextMiddleware
 from teradata_mcp_server.tools import ContextCatalog
+from teradata_mcp_server.tools.graph.graph_edge_contract import GRAPH_EDGE_CONTRACT
 from teradata_mcp_server.tools.utils import (
     convert_tdml_docstring_to_mcp_docstring,
     execute_analytic_function,
@@ -1287,5 +1288,19 @@ def get_glossary_term(term_name: str) -> dict[str, Any]:
             else:
                 return {"error": f"Glossary term not found: {term_name}"}
 
+    # ── Graph Edge Contract Resource ──────────────────────────────────────
+    # Always registered (static content, no YAML dependency).
+    # AI agents retrieve this to understand the edge_repository schema
+    # required by all graph_* tools.
+    # ──────────────────────────────────────────────────────────────────────
+    if any(re.match(pattern, "graph_edge_contract") for pattern in config.get("resource", [])):
+
+        @mcp.resource("graph://edge-contract")
+        def get_graph_edge_contract() -> str:
+            """Return the Graph Edge Contract schema definition."""
+            return GRAPH_EDGE_CONTRACT
+
+        logger.info("Registered resource: graph_edge_contract")
+
     # Return the configured app and some handles used by the entrypoint if needed
     return mcp, logger

src/teradata_mcp_server/config/profiles.yml

@@ -44,7 +44,7 @@ eda:
     - "base_(?!(writeQuery|dynamicQuery)$).*"
     - qlty_.*
     - sec_userDbPermissions
-    
+
 bar:
   tool:
     - ^bar_*
@@ -60,4 +60,13 @@ llmUser:
     - ^base_*
     - ^chat_*
   prompt:
-    - ^chat_*
+    - ^chat_*
+
+graph:
+  tool:
+    - ^graph_.*     
+  prompt:
+    - ^graph_.*
+  resource:
+    - ^graph_edge_contract$
+