diff --git a/.claude/settings.json b/.claude/settings.json
new file mode 100644
index 0000000..3b3155c
--- /dev/null
+++ b/.claude/settings.json
@@ -0,0 +1,15 @@
+{
+  "hooks": {
+    "PostToolUse": [
+      {
+        "matcher": "Write|Edit|MultiEdit",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "jq -r .tool_input.file_path | { read file_path; if echo \"$file_path\" | grep -qE \"\\.(py)$\"; then scripts/lint.sh \"$file_path\"; fi; }"
+          }
+        ]
+      }
+    ]
+  }
+}
diff --git a/poetry.lock b/poetry.lock
index 4414d06..6c3963d 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -613,6 +613,21 @@ files = [
     {file = "tomli-2.2.1.tar.gz", hash = "sha256:cd45e1dc79c835ce60f7404ec8119f2eb06d38b1deba146f07ced3bbc44505ff"},
 ]
 
+[[package]]
+name = "types-requests"
+version = "2.32.4.20250913"
+description = "Typing stubs for requests"
+optional = false
+python-versions = ">=3.9"
+groups = ["dev"]
+files = [
+    {file = "types_requests-2.32.4.20250913-py3-none-any.whl", hash = "sha256:78c9c1fffebbe0fa487a418e0fa5252017e9c60d1a2da394077f1780f655d7e1"},
+    {file = "types_requests-2.32.4.20250913.tar.gz", hash = "sha256:abd6d4f9ce3a9383f269775a9835a4c24e5cd6b9f647d64f88aa4613c33def5d"},
+]
+
+[package.dependencies]
+urllib3 = ">=2"
+
 [[package]]
 name = "typing-extensions"
 version = "4.14.0"
@@ -646,7 +661,7 @@ version = "2.5.0"
 description = "HTTP library with thread-safe connection pooling, file post, and more."
 optional = false
 python-versions = ">=3.9"
-groups = ["main"]
+groups = ["main", "dev"]
 files = [
     {file = "urllib3-2.5.0-py3-none-any.whl", hash = "sha256:e6b01673c0fa6a13e374b50871808eb3bf7046c4b125b216f6bf1cc604cff0dc"},
     {file = "urllib3-2.5.0.tar.gz", hash = "sha256:3fc47733c7e419d4bc3f6b3dc2b4f890bb743906a30d56ba4a5bfa4bbff92760"},
@@ -661,4 +676,4 @@ zstd = ["zstandard (>=0.18.0)"]
 [metadata]
 lock-version = "2.1"
 python-versions = ">=3.10"
-content-hash = "b286a33795fe9f764f5da9cc1b9569bd5100251997017f8e85ebc67261707f59"
+content-hash = "8dbdd73c071b243cdffd7f2f8117e01aeb55f4cc4b19ee5b009c24668e6aa2b1"
diff --git a/pyproject.toml b/pyproject.toml
index 86d04b1..963a212 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,6 +19,7 @@ packages = [{ include = "cvec", from = "src" }]
 pytest = "^8.3.5"
 mypy = "^1.15.0"
 ruff = "^0.11.10"
+types-requests = "^2.32.0"
 
 [build-system]
 requires = ["poetry-core>=2.0.0,<3.0.0"]
diff --git a/scripts/csv_import.py b/scripts/csv_import.py
index d79297e..f6dc45e 100755
--- a/scripts/csv_import.py
+++ b/scripts/csv_import.py
@@ -12,6 +12,7 @@
 from datetime import datetime
 from pathlib import Path
 from typing import List, Optional
+import requests
 
 from cvec import CVec
 from cvec.models.metric import MetricDataPoint
@@ -30,6 +31,7 @@ def parse_timestamp(timestamp_str: str) -> datetime:
         "%Y-%m-%d",
         "%m/%d/%Y %H:%M:%S",
         "%m/%d/%Y",
+        "%m/%d/%y %H:%M",
     ]
 
     for fmt in formats:
@@ -209,6 +211,14 @@ def main() -> None:
             metric_prefix=args.prefix,
         )
 
+    except requests.HTTPError as e:
+        print(f"Error: {e}")
+        # Display CloudFront ID if available
+        if e.response is not None:
+            cf_id = e.response.headers.get("x-amz-cf-id")
+            if cf_id:
+                print(f"Cf-Id: {cf_id}")
+        sys.exit(1)
     except Exception as e:
         print(f"Error: {e}")
         sys.exit(1)
diff --git a/scripts/lint.sh b/scripts/lint.sh
index ae674b4..c42c710 100755
--- a/scripts/lint.sh
+++ b/scripts/lint.sh
@@ -6,6 +6,14 @@ set -e
 
 TARGET=${1:-.}
 
-poetry run ruff check --fix "$TARGET"
-poetry run ruff format "$TARGET"
-poetry run mypy --strict "$TARGET"
+echo -e "poetry run ruff check --fix" "$@"
+poetry run ruff check --fix "$@"
+
+echo -e "\npoetry run ruff format" "$@"
+poetry run ruff format "$@"
+
+echo -e "\nrun mypy --strict" "$@"
+poetry run mypy --strict "$@"
+
+echo -e "\npoetry run pytest"
+poetry run pytest
diff --git a/src/cvec/cvec.py b/src/cvec/cvec.py
index ec37f92..f5e9fd9 100644
--- a/src/cvec/cvec.py
+++ b/src/cvec/cvec.py
@@ -3,7 +3,7 @@
 from typing import Any, Dict, List, Optional
 from urllib.parse import urljoin
 
-import requests  # type: ignore[import-untyped]
+import requests
 
 from cvec.models.metric import Metric, MetricDataPoint
 from cvec.models.span import Span