diff --git a/scripts/nx_paper.sh b/scripts/nx_paper.sh
new file mode 100644
index 0000000..ca79eba
--- /dev/null
+++ b/scripts/nx_paper.sh
@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+cmd="${1:-}"
+
+case "$cmd" in
+  build)
+    mkdir -p paper/build
+    bash paper/concat_code.sh
+    cd paper/src
+    latexmk -pdf -jobname=main -f -interaction=nonstopmode -file-line-error -r ../.latexmkrc -outdir=../build main.tex
+    ;;
+  watch)
+    mkdir -p paper/build
+    cd paper/src
+    latexmk -pvc -pdf -jobname=main -f -interaction=nonstopmode -file-line-error -r ../.latexmkrc -outdir=../build main.tex
+    ;;
+  clean)
+    cd paper/src
+    latexmk -C -jobname=main -outdir=../build || true
+    rm -rf ../build/*
+    ;;
+  wordcount)
+    printf '%s\n' 'Counting words in main text (excluding appendix)...'
+    texcount -nosub -total -sum -1 \
+      paper/src/chapters/01-intro.tex \
+      paper/src/chapters/02-literature-review.tex \
+      paper/src/chapters/03-methodology.tex \
+      paper/src/chapters/04-results.tex \
+      paper/src/chapters/05-discussion.tex \
+      paper/src/chapters/06-conclusion.tex
+    ;;
+  *)
+    printf '%s\n' "Unknown paper command: $cmd" >&2
+    exit 1
+    ;;
+esac
diff --git a/scripts/nx_research.sh b/scripts/nx_research.sh
new file mode 100644
index 0000000..846bd60
--- /dev/null
+++ b/scripts/nx_research.sh
@@ -0,0 +1,136 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+cmd="${1:-}"
+env_file="${SWEEP_ENV_FILE:-.env.sweep}"
+
+load_sweep_env() {
+  set -a
+  [ -f "$env_file" ] && . "$env_file" || true
+  set +a
+}
+
+require_var() {
+  local name="$1"
+  local msg="$2"
+  if [ -z "${!name:-}" ]; then
+    printf '%s\n' "$msg" >&2
+    exit 1
+  fi
+}
+
+case "$cmd" in
+  install)
+    [ -x .venv/bin/python ] || python3 -m venv .venv
+    .venv/bin/python -m ensurepip --upgrade
+    .venv/bin/python -m pip install -r requirements.txt
+    ;;
+  train)
+    load_sweep_env
+    require_var WANDB_API_KEY "WANDB_API_KEY required - set it in $env_file"
+    WANDB_ENTITY="${WANDB_ENTITY:-}" \
+    WANDB_PROJECT="${WANDB_PROJECT:-phantom-pricing}" \
+    WANDB_API_KEY="$WANDB_API_KEY" \
+      .venv/bin/python -m engine.train ${LOCAL_TRAIN_ARGS:---algo ppo --total-timesteps 50000}
+    ;;
+  train-agent)
+    load_sweep_env
+    require_var WANDB_API_KEY "WANDB_API_KEY required - set it in $env_file"
+    require_var SWEEP_ID "SWEEP_ID required, e.g. SWEEP_ID=entity/project/id"
+    args=(--sweep-agent --sweep-id "$SWEEP_ID")
+    if [ -n "${AGENT_COUNT:-}" ] && [ "${AGENT_COUNT}" != "0" ]; then
+      args+=(--count "$AGENT_COUNT")
+    fi
+    WANDB_ENTITY="${WANDB_ENTITY:-}" \
+    WANDB_PROJECT="${WANDB_PROJECT:-phantom-pricing}" \
+    WANDB_API_KEY="$WANDB_API_KEY" \
+      .venv/bin/python -m engine.train "${args[@]}"
+    ;;
+  train-bootstrap)
+    load_sweep_env
+    require_var WANDB_API_KEY "WANDB_API_KEY required - set it in $env_file"
+    require_var GITHUB_TOKEN "GITHUB_TOKEN required - set it in $env_file"
+    require_var REPO_URL "REPO_URL required, e.g. REPO_URL=https://github.com/org/repo.git"
+    require_var SWEEP_ID "SWEEP_ID required, e.g. SWEEP_ID=entity/project/id"
+    WANDB_API_KEY="$WANDB_API_KEY" \
+    WANDB_ENTITY="${WANDB_ENTITY:-}" \
+    WANDB_PROJECT="${WANDB_PROJECT:-phantom-pricing}" \
+    GITHUB_TOKEN="$GITHUB_TOKEN" \
+    REPO_URL="$REPO_URL" \
+    BRANCH="${BRANCH:-main}" \
+    WORKDIR="${WORKDIR:-$HOME/PHANTOM-agent}" \
+    SWEEP_ID="$SWEEP_ID" \
+    AGENT_COUNT="${AGENT_COUNT:-0}" \
+    AGENT_LOOP="${AGENT_LOOP:-1}" \
+    RETRY_SECONDS="${RETRY_SECONDS:-20}" \
+      bash scripts/wandb_agent_bootstrap.sh
+    ;;
+  stats)
+    python3 - <<'PY'
+from pathlib import Path
+
+skip = {"node_modules", ".venv", "venv"}
+exts = {".ts", ".py"}
+total = 0
+for path in Path(".").rglob("*"):
+    if not path.is_file() or path.suffix not in exts or any(part in skip for part in path.parts):
+        continue
+    text = path.read_text(errors="ignore")
+    total += text.count("\n") + (1 if text and not text.endswith("\n") else 0)
+print(total)
+PY
+    ;;
+  docker-train-publish)
+    image_ref="${TRAIN_IMAGE_REF:-us-central1-docker.pkg.dev/phantom-trc/phantom/phantom-trainer}"
+    docker build -f docker/Trainer.dockerfile --target gpu -t "$image_ref:gpu-latest" .
+    docker push "$image_ref:gpu-latest"
+    docker build -f docker/Trainer.dockerfile --target tpu -t "$image_ref:tpu-latest" .
+    docker push "$image_ref:tpu-latest"
+    ;;
+  train-tpu-pod)
+    load_sweep_env
+    require_var TPU_NAME "TPU_NAME required, e.g. TPU_NAME=TPUlong"
+    require_var SWEEP_ID "SWEEP_ID required, e.g. SWEEP_ID=entity/project/id"
+    require_var WANDB_API_KEY "WANDB_API_KEY required - set it in $env_file"
+    gcloud compute tpus tpu-vm scp scripts/tpu_pod_run.sh "$TPU_NAME":/tmp/tpu_pod_run.sh --zone="${TPU_ZONE:-us-central2-b}" --project="${TPU_PROJECT:-phantom-trc}" --worker=all
+    gcloud compute tpus tpu-vm ssh "$TPU_NAME" --zone="${TPU_ZONE:-us-central2-b}" --project="${TPU_PROJECT:-phantom-trc}" --worker=all --command="WANDB_API_KEY='$WANDB_API_KEY' SWEEP_ID='$SWEEP_ID' AGENT_COUNT='${AGENT_COUNT:-0}' sh /tmp/tpu_pod_run.sh"
+    ;;
+  train-tpu-vm-prepare)
+    require_var TPU_NAME "TPU_NAME required, e.g. TPU_NAME=TPUlong"
+    TPU_NAME="$TPU_NAME" \
+    TPU_ZONE="${TPU_ZONE:-us-central2-b}" \
+    TPU_PROJECT="${TPU_PROJECT:-phantom-trc}" \
+    LOCAL_REPO_DIR="$PWD" \
+    REMOTE_REPO_DIR="${TPU_REPO_DIR:-/tmp/PHANTOM}" \
+      sh scripts/tpu_sync_repo.sh
+    gcloud compute tpus tpu-vm scp scripts/tpu_vm_train.sh "$TPU_NAME":/tmp/tpu_vm_train.sh --zone="${TPU_ZONE:-us-central2-b}" --project="${TPU_PROJECT:-phantom-trc}" --worker=all
+    ;;
+  train-tpu-vm-run)
+    load_sweep_env
+    require_var TPU_NAME "TPU_NAME required, e.g. TPU_NAME=TPUlong"
+    require_var LOCAL_TRAIN_ARGS "LOCAL_TRAIN_ARGS required, e.g. --algo ppo --jax --total-timesteps 200000"
+    gcloud compute tpus tpu-vm ssh "$TPU_NAME" --zone="${TPU_ZONE:-us-central2-b}" --project="${TPU_PROJECT:-phantom-trc}" --worker=all --command="REPO_DIR='${TPU_REPO_DIR:-/tmp/PHANTOM}' TRAIN_ARGS='${LOCAL_TRAIN_ARGS}' WANDB_API_KEY='${WANDB_API_KEY:-}' sh /tmp/tpu_vm_train.sh"
+    ;;
+  train-tpu-vm-sweep)
+    load_sweep_env
+    require_var TPU_NAME "TPU_NAME required, e.g. TPU_NAME=TPUlong"
+    require_var SWEEP_ID "SWEEP_ID required, e.g. SWEEP_ID=lusiana/phantom-pricing/abc123"
+    require_var WANDB_API_KEY "WANDB_API_KEY required - set it in $env_file"
+    args=(
+      --sweep-id "$SWEEP_ID"
+      --tpu-name "$TPU_NAME"
+      --tpu-zone "${TPU_ZONE:-us-central2-b}"
+      --tpu-project "${TPU_PROJECT:-phantom-trc}"
+      --tpu-repo-dir "${TPU_REPO_DIR:-/tmp/PHANTOM}"
+    )
+    if [ -n "${AGENT_COUNT:-}" ] && [ "${AGENT_COUNT}" != "0" ]; then
+      args+=(--count "$AGENT_COUNT")
+    fi
+    WANDB_API_KEY="$WANDB_API_KEY" python3 scripts/tpu_vm_sweep_agent.py "${args[@]}"
+    ;;
+  *)
+    printf '%s\n' "Unknown research command: $cmd" >&2
+    exit 1
+    ;;
+esac