diff --git a/.github/workflows/publish-js-sdk.yaml b/.github/workflows/publish-js-sdk.yaml
index 7f41c9705..c9cc817fa 100644
--- a/.github/workflows/publish-js-sdk.yaml
+++ b/.github/workflows/publish-js-sdk.yaml
@@ -9,8 +9,8 @@
 #
 # 2. PRE-RELEASE (manual, workflow_dispatch):
 #    - Manually triggered via GitHub Actions UI
-#    - Choose pre-release type (beta/alpha/rc) and version
-#    - Publishes with appropriate dist-tag (beta/alpha/next)
+#    - Automatically appends "rc.{run_number}" to current package.json version
+#    - Publishes with "rc" dist-tag
 #    - Does NOT require updating package.json in the repository
 #
 
@@ -20,20 +20,7 @@ on:
   push:
     tags:
       - "js-sdk-v*.*.*" # Trigger on version tags like js-sdk-v0.1.0, js-sdk-v1.2.3, etc.
-  workflow_dispatch:
-    inputs:
-      prerelease_type:
-        description: "Pre-release type (determines npm dist-tag)"
-        required: true
-        type: choice
-        options:
-          - beta
-          - alpha
-          - rc
-      version:
-        description: "Version to publish (e.g., 1.2.3-beta.1)"
-        required: true
-        type: string
+  workflow_dispatch: # Trigger pre-release manually
 
 jobs:
   validate:
@@ -98,7 +85,10 @@ jobs:
         if: github.event_name == 'workflow_dispatch'
         working-directory: js
         run: |
-          ./scripts/publish-prerelease.sh "${{ github.event.inputs.prerelease_type }}" "${{ github.event.inputs.version }}"
+          # Read current version from package.json and append run number
+          CURRENT_VERSION=$(node -p "require('./package.json').version")
+          NEW_VERSION="${CURRENT_VERSION}-rc.${GITHUB_RUN_NUMBER}"
+          ./scripts/publish-prerelease.sh "rc" "$NEW_VERSION"
 
       # Upload artifacts for both paths
       - name: Upload build artifacts
diff --git a/js/scripts/publish-prerelease.sh b/js/scripts/publish-prerelease.sh
index 81d8877ab..d263adcf6 100755
--- a/js/scripts/publish-prerelease.sh
+++ b/js/scripts/publish-prerelease.sh
@@ -5,8 +5,8 @@ set -euo pipefail
 # Can be used both locally and in CI/CD
 #
 # Usage: ./publish-prerelease.sh <type> <version>
-#   type: beta, alpha, or rc
-#   version: explicit version to publish, e.g., 1.2.3-beta.1
+#   type: rc
+#   version: explicit version to publish, e.g., 1.2.3-rc.1
 
 # Get directories
 ROOT_DIR=$(git rev-parse --show-toplevel)
@@ -17,12 +17,10 @@ if [ $# -lt 2 ]; then
   echo "Usage: $0 <type> <version>"
   echo ""
   echo "Arguments:"
-  echo "  type: beta, alpha, or rc"
+  echo "  type: rc"
   echo "  version: explicit version to publish"
   echo ""
-  echo "Examples:"
-  echo "  $0 beta 1.2.3-beta.1"
-  echo "  $0 alpha 1.2.3-alpha.5"
+  echo "Example:"
   echo "  $0 rc 1.2.3-rc.1"
   exit 1
 fi
@@ -31,15 +29,11 @@ PRERELEASE_TYPE="$1"
 VERSION="$2"
 
 # Validate prerelease type
-case "$PRERELEASE_TYPE" in
-  beta|alpha|rc)
-    ;;
-  *)
-    echo "ERROR: Invalid prerelease type: $PRERELEASE_TYPE"
-    echo "Must be one of: beta, alpha, rc"
-    exit 1
-    ;;
-esac
+if [ "$PRERELEASE_TYPE" != "rc" ]; then
+  echo "ERROR: Invalid prerelease type: $PRERELEASE_TYPE"
+  echo "Must be: rc"
+  exit 1
+fi
 
 # Validate version format
 if [ -z "$VERSION" ]; then
@@ -47,18 +41,14 @@ if [ -z "$VERSION" ]; then
   exit 1
 fi
 
-# Map prerelease type to npm dist-tag
-case "$PRERELEASE_TYPE" in
-  beta)
-    DIST_TAG="beta"
-    ;;
-  alpha)
-    DIST_TAG="alpha"
-    ;;
-  rc)
-    DIST_TAG="next"
-    ;;
-esac
+# Validate that version contains the correct prerelease suffix
+if [[ ! "$VERSION" =~ ^[0-9]+\.[0-9]+\.[0-9]+-rc(\.[0-9]+)?$ ]]; then
+  echo "ERROR: Version '$VERSION' must include the prerelease type 'rc'"
+  echo "Expected format: X.Y.Z-rc.N (e.g., 1.2.3-rc.1)"
+  exit 1
+fi
+
+DIST_TAG="rc"
 
 echo "================================================"
 echo " Publishing Pre-release"