diff --git a/.generator/cli.py b/.generator/cli.py
index db0a23dafcdf..160e113d0453 100644
--- a/.generator/cli.py
+++ b/.generator/cli.py
@@ -44,6 +44,7 @@
 logger = logging.getLogger()
 
 BUILD_REQUEST_FILE = "build-request.json"
+CONFIGURE_REQUEST_FILE = "configure-request.json"
 GENERATE_REQUEST_FILE = "generate-request.json"
 RELEASE_INIT_REQUEST_FILE = "release-init-request.json"
 STATE_YAML_FILE = "state.yaml"
@@ -115,8 +116,51 @@ def _write_json_file(path: str, updated_content: Dict):
         f.write("\n")
 
 
-def handle_configure():
-    # TODO(https://github.com/googleapis/librarian/issues/466): Implement configure command and update docstring.
+def _get_library_version(library_id: str, repo: str) -> str:
+    """Gets the library version from its gapic_version.py file."""
+    library_path = Path(f"{repo}/packages/{library_id}")
+    gapic_version_files = list(library_path.rglob("**/gapic_version.py"))
+    if not gapic_version_files:
+        raise ValueError(f"Could not find gapic_version.py for {library_id}")
+
+    content = _read_text_file(gapic_version_files[0])
+    match = re.search(r"__version__\s*=\s*[\"']([^\"']+)[\"']", content)
+    if not match:
+        raise ValueError(f"Could not extract version from {gapic_version_files[0]}")
+
+    return match.group(1)
+
+
+def handle_configure(
+    librarian: str = LIBRARIAN_DIR,
+    source: str = SOURCE_DIR,
+    repo: str = REPO_DIR,
+    input: str = INPUT_DIR,
+):
+    try:
+        library_config = _read_json_file(f"{librarian}/{CONFIGURE_REQUEST_FILE}")
+        library_id = _get_library_id(library_config)
+
+        library_config["version"] = _get_library_version(library_id, repo)
+        library_config["source_roots"] = [f"packages/{library_id}"]
+        library_config["preserve_regex"] = [
+            f"packages/{library_id}/CHANGELOG.md",
+            "docs/CHANGELOG.md",
+            "docs/README.rst",
+            "samples/README.txt",
+            "tar.gz",
+            "gapic_version.py",
+            "scripts/client-post-processing",
+            "samples/snippets/README.rst",
+            "tests/system",
+        ]
+        library_config["remove_regex"] = [f"packages/{library_id}"]
+        library_config["tag_format"] = "{id}-v{version}"
+
+        _write_json_file(f"{librarian}/configure-response.json", library_config)
+
+    except Exception as e:
+        raise ValueError("Configuring a new library failed.") from e
     logger.info("'configure' command executed.")
 
 
@@ -1004,6 +1048,13 @@ def handle_release_init(
             output=args.output,
             input=args.input,
         )
+    elif args.command == "configure":
+        args.func(
+            librarian=args.librarian,
+            source=args.source,
+            repo=args.repo,
+            input=args.input,
+        )
     elif args.command == "build":
         args.func(librarian=args.librarian, repo=args.repo)
     elif args.command == "release-init":
diff --git a/.librarian/state.yaml b/.librarian/state.yaml
index f290283e8cb8..af11e2017c9c 100644
--- a/.librarian/state.yaml
+++ b/.librarian/state.yaml
@@ -1,31 +1,11 @@
-image: us-central1-docker.pkg.dev/cloud-sdk-librarian-prod/images-prod/python-librarian-generator:latest
+image: python-librarian-generator:latest
 libraries:
-  - id: google-cloud-dlp
-    version: 3.32.0
-    last_generated_commit: f8776fec04e336527ba7279d960105533a1c4e21
-    apis:
-      - path: google/privacy/dlp/v2
-        service_config: dlp_v2.yaml
-    source_roots:
-      - packages/google-cloud-dlp
-    preserve_regex:
-      - packages/google-cloud-dlp/CHANGELOG.md
-      - docs/CHANGELOG.md
-      - docs/README.rst
-      - samples/README.txt
-      - tar.gz
-      - gapic_version.py
-      - scripts/client-post-processing
-      - samples/snippets/README.rst
-      - tests/system
-    remove_regex:
-      - packages/google-cloud-dlp
-    tag_format: '{id}-v{version}'
   - id: google-cloud-eventarc
     version: 1.15.3
     last_generated_commit: d300b151a973ce0425ae4ad07b3de957ca31bec6
     apis:
       - path: google/cloud/eventarc/v1
+        service_config: eventarc_v1.yaml
     source_roots:
       - packages/google-cloud-eventarc
     preserve_regex:
@@ -46,6 +26,7 @@ libraries:
     last_generated_commit: d300b151a973ce0425ae4ad07b3de957ca31bec6
     apis:
       - path: google/cloud/video/livestream/v1
+        service_config: livestream_v1.yaml
     source_roots:
       - packages/google-cloud-video-live-stream
     preserve_regex:
@@ -66,6 +47,7 @@ libraries:
     last_generated_commit: d300b151a973ce0425ae4ad07b3de957ca31bec6
     apis:
       - path: google/marketingplatform/admin/v1alpha
+        service_config: marketingplatformadmin_v1alpha.yaml
     source_roots:
       - packages/google-ads-marketingplatform-admin
     preserve_regex:
@@ -86,10 +68,15 @@ libraries:
     last_generated_commit: d300b151a973ce0425ae4ad07b3de957ca31bec6
     apis:
       - path: google/ai/generativelanguage/v1
+        service_config: generativelanguage_v1.yaml
       - path: google/ai/generativelanguage/v1beta
+        service_config: generativelanguage_v1beta.yaml
       - path: google/ai/generativelanguage/v1beta3
+        service_config: generativelanguage_v1beta3.yaml
       - path: google/ai/generativelanguage/v1beta2
+        service_config: generativelanguage_v1beta2.yaml
       - path: google/ai/generativelanguage/v1alpha
+        service_config: generativelanguage_v1alpha.yaml
     source_roots:
       - packages/google-ai-generativelanguage
     preserve_regex:
@@ -110,7 +97,9 @@ libraries:
     last_generated_commit: d300b151a973ce0425ae4ad07b3de957ca31bec6
     apis:
       - path: google/analytics/admin/v1beta
+        service_config: analyticsadmin_v1beta.yaml
       - path: google/analytics/admin/v1alpha
+        service_config: analyticsadmin_v1alpha.yaml
     source_roots:
       - packages/google-analytics-admin
     preserve_regex:
@@ -131,7 +120,9 @@ libraries:
     last_generated_commit: d300b151a973ce0425ae4ad07b3de957ca31bec6
     apis:
       - path: google/analytics/data/v1alpha
+        service_config: analyticsdata_v1alpha.yaml
       - path: google/analytics/data/v1beta
+        service_config: analyticsdata_v1beta.yaml
     source_roots:
       - packages/google-analytics-data
     preserve_regex:
@@ -152,6 +143,7 @@ libraries:
     last_generated_commit: d300b151a973ce0425ae4ad07b3de957ca31bec6
     apis:
       - path: google/ads/admanager/v1
+        service_config: admanager_v1.yaml
     source_roots:
       - packages/google-ads-admanager
     preserve_regex:
@@ -167,3 +159,24 @@ libraries:
     remove_regex:
       - packages/google-ads-admanager
     tag_format: '{id}-v{version}'
+  - id: google-cloud-dlp
+    version: 3.32.0
+    last_generated_commit: b7e013ac0b9896cf89de48706221ec22212d8d0e
+    apis:
+      - path: google/privacy/dlp/v2
+        service_config: dlp_v2.yaml
+    source_roots:
+      - packages/google-cloud-dlp
+    preserve_regex:
+      - packages/google-cloud-dlp/CHANGELOG.md
+      - docs/CHANGELOG.md
+      - docs/README.rst
+      - samples/README.txt
+      - tar.gz
+      - gapic_version.py
+      - scripts/client-post-processing
+      - samples/snippets/README.rst
+      - tests/system
+    remove_regex:
+      - packages/google-cloud-dlp
+    tag_format: '{id}-v{version}'