diff --git a/services/api-server/src/api_server/ai_structure_service.py b/services/api-server/src/api_server/ai_structure_service.py
index 6270a46..d9213ab 100644
--- a/services/api-server/src/api_server/ai_structure_service.py
+++ b/services/api-server/src/api_server/ai_structure_service.py
@@ -162,8 +162,9 @@ def _write_codex_package(
     _write_json(root / "indexes" / "source-map.json", {"files": source_map})
     if snapshot is not None:
         (root / "raw" / "sir_snapshot.json").write_bytes(snapshot_to_json(snapshot))
-        objects = _ai_objects(snapshot)
-        modules = _ai_modules(snapshot)
+        source_lookup = _source_lookup(source_map)
+        objects = _ai_objects(snapshot, source_lookup)
+        modules = _ai_modules(snapshot, source_lookup)
         _write_json(root / "indexes" / "objects.json", objects)
         _write_json(root / "indexes" / "modules.json", modules)
         _write_json(root / "indexes" / "edges.json", [edge.model_dump(mode="json") for edge in snapshot.edges])
@@ -215,6 +216,24 @@ def _copy_codex_sources(input_path: Path, target: Path) -> list[dict[str, Any]]:
     return copied
 
 
+def _source_lookup(source_map: list[dict[str, Any]]) -> dict[str, str]:
+    lookup: dict[str, str] = {}
+    for item in source_map:
+        if not item.get("copied"):
+            continue
+        codex_path = str(item.get("codex_path") or "")
+        if not codex_path:
+            continue
+        for key in ["relative_path", "original_path"]:
+            value = str(item.get(key) or "")
+            if not value:
+                continue
+            normalized = value.replace("\\", "/")
+            lookup[normalized] = codex_path
+            lookup[str(Path(value)).replace("\\", "/")] = codex_path
+    return lookup
+
+
 def _codex_agents_markdown(manifest: dict[str, Any]) -> str:
     return f"""# AGENTS.md for 1C context package
 
@@ -371,6 +390,9 @@ def _module_markdown(item: dict[str, Any]) -> str:
 
 
 def _local_source_path(item: dict[str, Any]) -> str:
+    local = str(item.get("local_source_path") or "")
+    if local:
+        return local
     source = item.get("source") or {}
     if not isinstance(source, dict):
         return ""
@@ -378,6 +400,16 @@ def _local_source_path(item: dict[str, Any]) -> str:
     return f"source/{source_path}" if source_path else ""
 
 
+def _source_ref_local_path(source_ref: object | None, source_lookup: dict[str, str]) -> str:
+    if source_ref is None:
+        return ""
+    source_path = str(getattr(source_ref, "source_path", "") or "")
+    if not source_path:
+        return ""
+    normalized = source_path.replace("\\", "/")
+    return source_lookup.get(normalized) or source_lookup.get(str(Path(source_path)).replace("\\", "/")) or ""
+
+
 def _normalized_tree_markdown(normalized: NormalizedProject) -> str:
     lines = [f"# Metadata Tree: {normalized.project_id or 'project'}", ""]
     for group in normalized.configuration.groups:
@@ -395,7 +427,7 @@ def _normalized_tree_markdown(normalized: NormalizedProject) -> str:
     return "\n".join(lines)
 
 
-def _ai_objects(snapshot: SirSnapshot) -> list[dict[str, Any]]:
+def _ai_objects(snapshot: SirSnapshot, source_lookup: dict[str, str] | None = None) -> list[dict[str, Any]]:
     return [
         {
             "kind": node.kind.value if hasattr(node.kind, "value") else str(node.kind),
@@ -404,6 +436,7 @@ def _ai_objects(snapshot: SirSnapshot) -> list[dict[str, Any]]:
             "lineage_id": node.lineage_id,
             "semantic_id": node.semantic_id,
             "source": None if node.source_ref is None else node.source_ref.model_dump(mode="json"),
+            "local_source_path": _source_ref_local_path(node.source_ref, source_lookup or {}),
             "attributes": node.attributes,
         }
         for node in snapshot.nodes
@@ -411,13 +444,14 @@ def _ai_objects(snapshot: SirSnapshot) -> list[dict[str, Any]]:
     ]
 
 
-def _ai_modules(snapshot: SirSnapshot) -> list[dict[str, Any]]:
+def _ai_modules(snapshot: SirSnapshot, source_lookup: dict[str, str] | None = None) -> list[dict[str, Any]]:
     return [
         {
             "name": node.name,
             "qualified_name": node.qualified_name,
             "lineage_id": node.lineage_id,
             "source": None if node.source_ref is None else node.source_ref.model_dump(mode="json"),
+            "local_source_path": _source_ref_local_path(node.source_ref, source_lookup or {}),
             "attributes": node.attributes,
         }
         for node in snapshot.nodes
diff --git a/services/api-server/tests/test_api.py b/services/api-server/tests/test_api.py
index 0d19021..55e009e 100644
--- a/services/api-server/tests/test_api.py
+++ b/services/api-server/tests/test_api.py
@@ -1,4 +1,5 @@
 from pathlib import Path
+import json
 import re
 import time
 from types import SimpleNamespace
@@ -1716,6 +1717,10 @@ def test_ai_structure_prepare_writes_ai_ready_package(tmp_path: Path):
     assert (codex_package / "raw" / "normalized_project.json").exists()
     assert (codex_package / "source" / "metadata.xml").exists()
     assert (codex_package / "source" / "Интеграция.bsl").read_text(encoding="utf-8").startswith("Процедура")
+    modules_index = json.loads((codex_package / "indexes" / "modules.json").read_text(encoding="utf-8"))
+    assert any(item.get("local_source_path") == "source/Интеграция.bsl" for item in modules_index)
+    module_docs = "\n".join(path.read_text(encoding="utf-8") for path in (codex_package / "modules").glob("*.md"))
+    assert "Local source: `source/Интеграция.bsl`" in module_docs
     assert "generated by SFERA for Codex" in (codex_package / "AGENTS.md").read_text(encoding="utf-8")
     assert "Use `source/`" in (codex_package / "AGENTS.md").read_text(encoding="utf-8")
     assert "Copy this whole folder into the Codex project" in (codex_package / "README.md").read_text(encoding="utf-8")