diff --git a/build.sh b/build.sh
new file mode 100755
index 0000000..5825fab
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,44 @@
+#!/bin/bash
+set -e
+
+DRAFT="draft-nennemann-wimse-execution-context-00"
+DIR="$(cd "$(dirname "$0")" && pwd)"
+
+# Resolve tool paths
+KDRFC="$(find /usr/local/lib/ruby/gems /opt/homebrew -name kdrfc -path "*/bin/*" 2>/dev/null | head -1)"
+KRAMDOWN="$(find /usr/local/lib/ruby/gems /opt/homebrew -name kramdown-rfc2629 -path "*/bin/*" 2>/dev/null | head -1)"
+XML2RFC="$(find "$HOME/Library/Python" /usr/local /opt/homebrew -name xml2rfc -path "*/bin/*" 2>/dev/null | head -1)"
+
+if [ -z "$KRAMDOWN" ]; then
+  echo "Error: kramdown-rfc2629 not found. Install with: gem install kramdown-rfc" >&2
+  exit 1
+fi
+
+if [ -z "$XML2RFC" ]; then
+  echo "Error: xml2rfc not found. Install with: pip install xml2rfc" >&2
+  exit 1
+fi
+
+export PYTHONWARNINGS="ignore::UserWarning"
+
+echo "Using kramdown-rfc2629: $KRAMDOWN"
+echo "Using xml2rfc:          $XML2RFC"
+echo ""
+
+# Step 1: Markdown -> XML
+echo "Converting markdown to XML..."
+"$KRAMDOWN" "$DIR/$DRAFT.md" > "$DIR/$DRAFT.xml"
+
+# Step 2: XML -> TXT
+echo "Generating text output..."
+"$XML2RFC" "$DIR/$DRAFT.xml" --text --quiet 2>/dev/null
+
+# Step 3: XML -> HTML
+echo "Generating HTML output..."
+"$XML2RFC" "$DIR/$DRAFT.xml" --html --quiet 2>/dev/null
+
+echo ""
+echo "Build complete:"
+echo "  $DRAFT.xml   (submit this to datatracker)"
+echo "  $DRAFT.txt"
+echo "  $DRAFT.html"