feat(cli): add inspect chunks note-level retrieval view

src/basic_memory/api/app.py

@@ -19,6 +19,7 @@
     prompt_router as v2_prompt,
     importer_router as v2_importer,
     schema_router as v2_schema,
+    inspect_router as v2_inspect,
 )
 import logfire
 from basic_memory.index.note_content_materialization import drain_pending_materializations
@@ -131,6 +132,7 @@ async def workspace_permalink_context_middleware(request: Request, call_next):
 app.include_router(v2_prompt, prefix="/v2/projects/{project_id}")
 app.include_router(v2_importer, prefix="/v2/projects/{project_id}")
 app.include_router(v2_schema, prefix="/v2/projects/{project_id}")
+app.include_router(v2_inspect, prefix="/v2/projects/{project_id}")
 app.include_router(v2_project, prefix="/v2")
 
 # Legacy web app proxy paths (compat with /proxy/projects/projects)

src/basic_memory/api/v2/routers/__init__.py

@@ -9,6 +9,7 @@
 from basic_memory.api.v2.routers.prompt_router import router as prompt_router
 from basic_memory.api.v2.routers.importer_router import router as importer_router
 from basic_memory.api.v2.routers.schema_router import router as schema_router
+from basic_memory.api.v2.routers.inspect_router import router as inspect_router
 
 __all__ = [
     "knowledge_router",
@@ -20,4 +21,5 @@
     "prompt_router",
     "importer_router",
     "schema_router",
+    "inspect_router",
 ]

src/basic_memory/api/v2/routers/inspect_router.py

@@ -0,0 +1,150 @@
+"""V2 router for read-only retrieval inspection."""
+
+from typing import assert_never
+
+from fastapi import APIRouter, HTTPException
+
+from basic_memory.deps import (
+    FileServiceV2ExternalDep,
+    LinkResolverV2ExternalDep,
+    ProjectExternalIdPathDep,
+    SearchRepositoryV2ExternalDep,
+)
+from basic_memory.schemas.inspect import (
+    InspectChunk,
+    InspectChunkReadiness,
+    InspectChunksRequest,
+    InspectChunksResponse,
+    InspectDetachedSearchRow,
+    InspectIndexBehindRowsDetail,
+    InspectRowsBehindFileDetail,
+    InspectSearchRow,
+)
+from basic_memory.services.retrieval_inspect import (
+    ChunkFresh,
+    ChunkFreshnessUnknown,
+    ChunkNotIndexed,
+    ChunkIndexBehindRows,
+    ChunkRowsBehindFile,
+    inspect_entity_chunks,
+)
+
+router = APIRouter(prefix="/inspect", tags=["inspect"])
+
+
+@router.post("/chunks", response_model=InspectChunksResponse)
+async def inspect_chunks(
+    data: InspectChunksRequest,
+    project_id: ProjectExternalIdPathDep,
+    link_resolver: LinkResolverV2ExternalDep,
+    search_repository: SearchRepositoryV2ExternalDep,
+    file_service: FileServiceV2ExternalDep,
+) -> InspectChunksResponse:
+    """Show how one note is represented by search rows and vector chunks."""
+    entity = await link_resolver.resolve_entity(
+        data.identifier,
+        load_relations=False,
+    )
+    if entity is None or entity.project_id != project_id:
+        raise HTTPException(status_code=404, detail=f"Entity not found: '{data.identifier}'")
+
+    inspection = await inspect_entity_chunks(search_repository, entity, file_service)
+    freshness_detail: InspectIndexBehindRowsDetail | InspectRowsBehindFileDetail | None
+    match inspection.freshness:
+        case ChunkFresh() | ChunkNotIndexed():
+            freshness_detail = None
+        case ChunkIndexBehindRows():
+            freshness_detail = InspectIndexBehindRowsDetail(
+                entity_fingerprint_indexed=(
+                    list(inspection.freshness.entity_fingerprint_indexed)
+                    if isinstance(
+                        inspection.freshness.entity_fingerprint_indexed,
+                        tuple,
+                    )
+                    else inspection.freshness.entity_fingerprint_indexed
+                ),
+                entity_fingerprint_current=(inspection.freshness.entity_fingerprint_current),
+                missing_chunk_count=inspection.freshness.missing_chunk_count,
+            )
+        case ChunkRowsBehindFile() | ChunkFreshnessUnknown():
+            evidence = inspection.freshness.evidence
+            freshness_detail = InspectRowsBehindFileDetail(
+                entity_checksum=evidence.entity_checksum,
+                current_file_checksum=evidence.current_file_checksum,
+                db_checksum=evidence.db_checksum,
+                file_checksum=evidence.file_checksum,
+                file_write_status=evidence.file_write_status,
+            )
+        case unexpected:  # pragma: no cover - EntityChunkFreshness is exhaustive
+            assert_never(unexpected)
+    return InspectChunksResponse(
+        entity_id=entity.id,
+        external_id=entity.external_id,
+        permalink=entity.permalink,
+        file_path=entity.file_path,
+        title=entity.title,
+        entity_checksum=entity.checksum,
+        configured_embedding_model=inspection.configured_identity.embedding_model,
+        configured_vector_index=inspection.configured_identity.vector_index,
+        readiness=InspectChunkReadiness(
+            total=inspection.readiness.total,
+            ready=inspection.readiness.ready,
+            pending=inspection.readiness.pending,
+            stale=inspection.readiness.stale,
+            orphaned=inspection.readiness.orphaned,
+            missing=inspection.readiness.missing,
+        ),
+        entity_fingerprint_indexed=(
+            list(inspection.entity_fingerprint_indexed)
+            if isinstance(inspection.entity_fingerprint_indexed, tuple)
+            else inspection.entity_fingerprint_indexed
+        ),
+        entity_fingerprint_current=inspection.entity_fingerprint_current,
+        stale=inspection.stale,
+        freshness=inspection.freshness.value,
+        freshness_detail=freshness_detail,
+        rows=[
+            InspectSearchRow(
+                type=inspected_row.search_row.type,
+                id=inspected_row.search_row.id,
+                title=inspected_row.search_row.title,
+                category=inspected_row.search_row.category,
+                relation_type=inspected_row.search_row.relation_type,
+                content_preview=inspected_row.search_row.content_snippet,
+                chunks=[
+                    InspectChunk(
+                        chunk_key=chunk.stored_row.chunk_key,
+                        ordinal=chunk.ordinal,
+                        text=chunk.stored_row.chunk_text,
+                        source_hash=chunk.stored_row.source_hash,
+                        embedding_model=chunk.stored_row.embedding_model,
+                        vector_index=chunk.stored_row.vector_index,
+                        status=chunk.status,
+                        updated_at=chunk.stored_row.updated_at,
+                    )
+                    for chunk in inspected_row.chunks
+                ],
+            )
+            for inspected_row in inspection.rows
+        ],
+        detached=[
+            InspectDetachedSearchRow(
+                type=detached_row.row_type,
+                id=detached_row.row_id,
+                chunks=[
+                    InspectChunk(
+                        chunk_key=chunk.stored_row.chunk_key,
+                        ordinal=chunk.ordinal,
+                        text=chunk.stored_row.chunk_text,
+                        source_hash=chunk.stored_row.source_hash,
+                        embedding_model=chunk.stored_row.embedding_model,
+                        vector_index=chunk.stored_row.vector_index,
+                        status=chunk.status,
+                        updated_at=chunk.stored_row.updated_at,
+                    )
+                    for chunk in detached_row.chunks
+                ],
+            )
+            for detached_row in inspection.detached
+        ],
+    )

src/basic_memory/cli/app.py

@@ -127,6 +127,7 @@ def _post_command_messages() -> None:
     # ('hook' returns above, before this point.)
     skip_init_commands = {
         "doctor",
+        "inspect",
         "man",
         "mcp",
         "status",

src/basic_memory/cli/commands/__init__.py

@@ -6,6 +6,7 @@
     import_chatgpt,
     man,
     tool,
+    inspect,
     project,
     config,
     format,
@@ -26,6 +27,7 @@
     "import_claude_projects",
     "import_chatgpt",
     "tool",
+    "inspect",
     "project",
     "config",
     "format",