diff --git a/zsh/.local/share/zsh/functions/use-bedrock b/zsh/.local/share/zsh/functions/use-bedrock
new file mode 100644
index 0000000..cb36ea7
--- /dev/null
+++ b/zsh/.local/share/zsh/functions/use-bedrock
@@ -0,0 +1,33 @@
+use-bedrock() {
+  local force=0
+
+  while getopts "f" opt; do
+    case $opt in
+      f) force=1 ;;
+      *) echo "Usage: use-bedrock [-f]" >&2; return 1 ;;
+    esac
+  done
+  OPTIND=1
+
+  if [[ "$force" -eq 0 ]] && [[ -n "$AWS_ACCESS_KEY_ID" ]] && [[ -n "$AWS_SECRET_ACCESS_KEY" ]]; then
+    echo "AWS credentials already set. Skipping Bedrock setup. Use -f to force re-authentication." >&2
+    return
+  fi
+
+  aws sso login --use-device-code || return 1
+
+  local creds
+  creds=$(aws configure export-credentials --format env) || return 1
+  eval "$creds"
+
+  export CLAUDE_CODE_USE_BEDROCK=1
+  export CLAUDE_BEDROCK_AWS_REGION="${AWS_REGION:-us-east-2}"
+  export ANTHROPIC_DEFAULT_OPUS_MODEL="${BEDROCK_OPUS_MODEL:-us.anthropic.claude-opus-4-7-v1}"
+  export ANTHROPIC_DEFAULT_SONNET_MODEL="${BEDROCK_SONNET_MODEL:-us.anthropic.claude-sonnet-4-6}"
+  export ANTHROPIC_DEFAULT_HAIKU_MODEL="${BEDROCK_HAIKU_MODEL:-us.anthropic.claude-haiku-4-5-20251001-v1:0}"
+
+  unset CLAUDE_CODE_USE_VERTEX
+
+  printf 'Bedrock environment set.\n\tOpus:   %s\n\tSonnet: %s\n\tHaiku:  %s\n' \
+    "$ANTHROPIC_DEFAULT_OPUS_MODEL" "$ANTHROPIC_DEFAULT_SONNET_MODEL" "$ANTHROPIC_DEFAULT_HAIKU_MODEL" >&2
+}
diff --git a/zsh/.local/share/zsh/functions/use-vertex b/zsh/.local/share/zsh/functions/use-vertex
new file mode 100644
index 0000000..b195860
--- /dev/null
+++ b/zsh/.local/share/zsh/functions/use-vertex
@@ -0,0 +1,25 @@
+use-vertex() {
+  local project="${ANTHROPIC_VERTEX_PROJECT_ID:-sandbox-jason-7023}"
+  local region="${CLOUD_ML_REGION:-us-east5}"
+
+  # Probe/refresh ADC
+  if ! gcloud auth application-default print-access-token >/dev/null 2>&1; then
+    gcloud auth login --update-adc || return 1
+  fi
+
+  export CLAUDE_CODE_USE_VERTEX=1
+  export ANTHROPIC_VERTEX_PROJECT_ID="$project"
+  export CLOUD_ML_REGION="$region"
+  export ANTHROPIC_DEFAULT_OPUS_MODEL="${VERTEX_OPUS_MODEL:-claude-opus-4-7}"
+  export ANTHROPIC_DEFAULT_SONNET_MODEL="${VERTEX_SONNET_MODEL:-claude-sonnet-4-6}"
+  export ANTHROPIC_DEFAULT_HAIKU_MODEL="${VERTEX_HAIKU_MODEL:-claude-haiku-4-5-20251001}"
+
+  # pi google-vertex provider auto-activates with all three present
+  export GOOGLE_CLOUD_PROJECT="$project"
+  export GOOGLE_CLOUD_LOCATION="$region"
+
+  unset CLAUDE_CODE_USE_BEDROCK CLAUDE_BEDROCK_AWS_REGION
+
+  printf 'Vertex AI environment set.\n\tOpus:   %s\n\tSonnet: %s\n\tHaiku:  %s\n' \
+    "$ANTHROPIC_DEFAULT_OPUS_MODEL" "$ANTHROPIC_DEFAULT_SONNET_MODEL" "$ANTHROPIC_DEFAULT_HAIKU_MODEL" >&2
+}