diff --git a/cat_files/corex_fa2_base.py b/cat_files/corex_fa2_base.py
deleted file mode 100644
index 6057d030..00000000
--- a/cat_files/corex_fa2_base.py
+++ /dev/null
@@ -1,2 +0,0 @@
-# FROM: /usr/local/corex-3.2.3/lib64/python3/dist-packages/vllm/model_executor/models/corex_fa2.py
-# 279 lines - cat from real device 2026-08-17
diff --git a/cat_files/corex_gdn_base.py b/cat_files/corex_gdn_base.py
deleted file mode 100644
index 7199f8dd..00000000
--- a/cat_files/corex_gdn_base.py
+++ /dev/null
@@ -1,2 +0,0 @@
-# FROM: /usr/local/corex-3.2.3/lib64/python3/dist-packages/vllm/model_executor/models/corex_gdn.py
-# 246 lines - cat from real device 2026-08-17
diff --git a/cat_files/corex_moe_base.py b/cat_files/corex_moe_base.py
deleted file mode 100644
index 2cafb2e5..00000000
--- a/cat_files/corex_moe_base.py
+++ /dev/null
@@ -1,2 +0,0 @@
-# FROM: /usr/local/corex-3.2.3/lib64/python3/dist-packages/vllm/model_executor/models/corex_moe.py  
-# 237 lines - cat from real device 2026-08-17
diff --git a/ex_engine/build_all.sh b/ex_engine/build_all.sh
deleted file mode 100755
index 47d0b9ba..00000000
--- a/ex_engine/build_all.sh
+++ /dev/null
@@ -1,157 +0,0 @@
-#!/usr/bin/env bash
-# build_all.sh — Compile all EX Engine algorithm factors
-#
-# Output:
-#   ix_full_bridge.so    — 8 ops from _ixformer_torch.so (silu, norm, rope, cache, attn, linear)
-#   ix_moe_bridge.so     — 5 MoE ops (topk via cuinferTopK, index, expand, combine + group_gemm)
-#   gemm_grouped.so      — CUTLASS Cu10 per-expert GEMM (✓ verified 1.97x on BI-V100)
-#
-# Usage: bash build_all.sh
-# Requires: corex clang/16 + torch + cutlass headers
-
-set -euo pipefail
-SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-CSRC="${SCRIPT_DIR}/csrc"
-
-# Detect paths
-COREX_ROOT="${COREX_ROOT:-/usr/local/corex-3.2.3}"
-COREX_LIB=""
-for d in "${COREX_ROOT}/lib64" "/usr/local/corex/lib64"; do
-    [[ -d "$d" ]] && COREX_LIB="$d" && break
-done
-
-IXFORMER_TORCH_SO=""
-for f in "${COREX_LIB}"/python3/dist-packages/ixformer/_ixformer_torch*.so \
-         "${COREX_LIB}"/python3/dist-packages/ixformer/_ixformer_torch.cpython-310-x86_64-linux-gnu.so; do
-    [[ -f "$f" ]] && IXFORMER_TORCH_SO="$f" && break
-done
-
-CUINFER_LIB=""
-for d in "${COREX_LIB}" "/usr/local/corex/lib64"; do
-    [[ -f "${d}/libcuinfer.so" ]] && CUINFER_LIB="$d" && break
-done
-
-CUTLASS_INC=""
-for d in /usr/local/corex-samples-*/samples/cutlass/include \
-         /usr/local/corex/include/cutlass \
-         /usr/include/cutlass; do
-    [[ -d "$d" ]] && CUTLASS_INC="$d" && break
-done
-
-echo "[build] COREX_LIB: ${COREX_LIB}"
-echo "[build] IXFORMER_TORCH_SO: ${IXFORMER_TORCH_SO}"
-echo "[build] CUINFER_LIB: ${CUINFER_LIB}"
-echo "[build] CUTLASS_INC: ${CUTLASS_INC}"
-
-OUTPUT="${SCRIPT_DIR}/prebuilt"
-mkdir -p "${OUTPUT}"
-
-# ============================================================
-# 1. ix_full_bridge.so — links _ixformer_torch.so
-# ============================================================
-echo ""
-echo "=== Building ix_full_bridge.so ==="
-python3 << PYEOF
-import os, sys, shutil
-try:
-    from torch.utils.cpp_extension import load
-    mod = load(
-        name="ix_full_bridge",
-        sources=["${CSRC}/ix_full_bridge_v2.cpp"],
-        extra_ldflags=[
-            "-L$(dirname ${IXFORMER_TORCH_SO})",
-            "-l:$(basename ${IXFORMER_TORCH_SO})",
-            "-Wl,-rpath,$(dirname ${IXFORMER_TORCH_SO})",
-        ] if "${IXFORMER_TORCH_SO}" else [],
-        extra_cflags=["-O2", "-std=c++17"],
-        verbose=True,
-    )
-    import importlib
-    spec = importlib.util.find_spec("ix_full_bridge")
-    if spec and spec.origin:
-        shutil.copy2(spec.origin, "${OUTPUT}/ix_full_bridge.so")
-        print("[build] ✓ ix_full_bridge.so")
-except Exception as e:
-    print(f"[build] ✗ ix_full_bridge.so: {e}", file=sys.stderr)
-    sys.exit(1)
-PYEOF
-
-# ============================================================
-# 2. ix_moe_bridge.so — MoE ops + cuinfer topk
-# ============================================================
-echo ""
-echo "=== Building ix_moe_bridge.so ==="
-python3 << PYEOF
-import os, sys, shutil
-ldflags = ["-O2"]
-if "${CUINFER_LIB}":
-    ldflags += ["-L${CUINFER_LIB}", "-lcuinfer", "-Wl,-rpath,${CUINFER_LIB}"]
-
-sources = ["${CSRC}/ix_moe_bridge.cpp"]
-if os.path.isfile("${CSRC}/moe_ops_impl.cu"):
-    sources.append("${CSRC}/moe_ops_impl.cu")
-
-try:
-    from torch.utils.cpp_extension import load
-    mod = load(
-        name="ix_moe_bridge",
-        sources=sources,
-        extra_cflags=["-O2", "-std=c++17"],
-        extra_cuda_cflags=["-O2"],
-        extra_ldflags=ldflags,
-        verbose=True,
-    )
-    import importlib
-    spec = importlib.util.find_spec("ix_moe_bridge")
-    if spec and spec.origin:
-        shutil.copy2(spec.origin, "${OUTPUT}/ix_moe_bridge.so")
-        print("[build] ✓ ix_moe_bridge.so")
-except Exception as e:
-    print(f"[build] ✗ ix_moe_bridge.so: {e}", file=sys.stderr)
-    sys.exit(1)
-PYEOF
-
-# ============================================================
-# 3. gemm_grouped.so — CUTLASS Cu10 grouped GEMM
-# ============================================================
-echo ""
-echo "=== Building gemm_grouped.so ==="
-if [[ -z "${CUTLASS_INC}" ]]; then
-    echo "[build] ✗ gemm_grouped.so: cutlass include not found"
-else
-    python3 << PYEOF
-import os, sys, shutil
-sources = [
-    "${CSRC}/gemm_grouped.cu",
-    "${CSRC}/gemm_grouped_bind.cpp",
-]
-sources = [s for s in sources if os.path.isfile(s)]
-ldflags = []
-if "${CUINFER_LIB}":
-    ldflags += ["-L${CUINFER_LIB}", "-lcuinfer", "-Wl,-rpath,${CUINFER_LIB}"]
-
-try:
-    from torch.utils.cpp_extension import load
-    mod = load(
-        name="gemm_grouped",
-        sources=sources,
-        extra_include_paths=["${CUTLASS_INC}", "${CSRC}"],
-        extra_cflags=["-O2", "-std=c++17"],
-        extra_cuda_cflags=["-O2", "--extended-lambda", "-I${CUTLASS_INC}"],
-        extra_ldflags=ldflags,
-        verbose=True,
-    )
-    import importlib
-    spec = importlib.util.find_spec("gemm_grouped")
-    if spec and spec.origin:
-        shutil.copy2(spec.origin, "${OUTPUT}/gemm_grouped.so")
-        print("[build] ✓ gemm_grouped.so")
-except Exception as e:
-    print(f"[build] ✗ gemm_grouped.so: {e}", file=sys.stderr)
-    sys.exit(1)
-PYEOF
-fi
-
-echo ""
-echo "=== Build Results ==="
-ls -la "${OUTPUT}"/*.so 2>/dev/null || echo "No .so files built"