diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a8b4147..90109d2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -47,7 +47,8 @@ jobs:
         with:
           bun-version: latest
 
+      - name: Build Bun subminer wrapper
+        run: make build-launcher
+
       - name: Verify Bun subminer wrapper
-        run: |
-          chmod +x subminer
-          ./subminer --help >/dev/null
+        run: ./subminer --help >/dev/null
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 6dc2c2d..ac9d2b7 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -140,10 +140,11 @@ jobs:
         with:
           bun-version: latest
 
+      - name: Build Bun subminer wrapper
+        run: make build-launcher
+
       - name: Verify Bun subminer wrapper
-        run: |
-          chmod +x subminer
-          ./subminer --help >/dev/null
+        run: ./subminer --help >/dev/null
 
       - name: Get version from tag
         id: version
diff --git a/scripts/docs-sweep-once.sh b/scripts/docs-sweep-once.sh
new file mode 100755
index 0000000..61eab19
--- /dev/null
+++ b/scripts/docs-sweep-once.sh
@@ -0,0 +1,73 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+REPO="${REPO:-$HOME/projects/japanese/SubMiner}"
+LOCK_FILE="${LOCK_FILE:-/tmp/subminer-doc-sweep.lock}"
+STATE_FILE="${STATE_FILE:-/tmp/subminer-doc-sweep.state}"
+LOG_FILE="${LOG_FILE:-$REPO/.codex-doc-sweep.log}"
+TIMEOUT_SECONDS="${TIMEOUT_SECONDS:-240}"
+
+# Non-interactive agent command used to run the prompt.
+# Example:
+#   AGENT_CMD='codex exec'
+#   AGENT_CMD='opencode run'
+AGENT_CMD="${AGENT_CMD:-codex exec}"
+
+read -r -d '' PROMPT << 'EOF' || true
+Watch for in-flight refactors. If repo changes introduced drift, update only:
+- README.md
+- docs/**/*.md
+- config.example.jsonc
+- docs/public/config.example.jsonc <-- generated automatically with make pnpm run generate:config-example
+- package.json scripts/config references (only if needed)
+
+Rules:
+- Keep edits minimal and accurate to current code.
+- Do not commit.
+- Do not push.
+- If ambiguous, do not guess; skip and report uncertainty.
+- Print concise summary of files changed and why.
+EOF
+
+mkdir -p "$(dirname "$LOCK_FILE")"
+mkdir -p "$(dirname "$STATE_FILE")"
+
+exec 9> "$LOCK_FILE"
+if ! flock -n 9; then
+	exit 0
+fi
+
+cd "$REPO"
+
+current_state="$({
+	git status --porcelain=v1
+	git ls-files --others --exclude-standard
+} | sha256sum | cut -d' ' -f1)"
+
+previous_state="$(cat "$STATE_FILE" 2> /dev/null || true)"
+if [[ "$current_state" == "$previous_state" ]]; then
+	exit 0
+fi
+
+printf '%s' "$current_state" > "$STATE_FILE"
+
+quoted_prompt="$(printf '%q' "$PROMPT")"
+
+run_started_at="$(date -Is)"
+echo "[RUN] [$run_started_at] docs sweep running"
+echo "[$run_started_at] state changed; starting docs sweep" >> "$LOG_FILE"
+
+job_status=0
+if timeout "${TIMEOUT_SECONDS}s" bash -lc "$AGENT_CMD $quoted_prompt" >> "$LOG_FILE" 2>&1; then
+	run_finished_at="$(date -Is)"
+	echo "[OK]  [$run_finished_at] docs sweep complete"
+	echo "[$run_finished_at] docs sweep complete" >> "$LOG_FILE"
+else
+	run_failed_at="$(date -Is)"
+	exit_code=$?
+	job_status=$exit_code
+	echo "[FAIL] [$run_failed_at] docs sweep failed (exit $exit_code)"
+	echo "[$run_failed_at] docs sweep failed (exit $exit_code)" >> "$LOG_FILE"
+fi
+
+exit "$job_status"
diff --git a/scripts/docs-sweep-watch.sh b/scripts/docs-sweep-watch.sh
new file mode 100755
index 0000000..ba33575
--- /dev/null
+++ b/scripts/docs-sweep-watch.sh
@@ -0,0 +1,160 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+RUN_ONCE_SCRIPT="$SCRIPT_DIR/docs-sweep-once.sh"
+INTERVAL_SECONDS="${INTERVAL_SECONDS:-300}"
+REPO="${REPO:-$HOME/projects/japanese/SubMiner}"
+LOG_FILE="${LOG_FILE:-$REPO/.codex-doc-sweep.log}"
+REPORT_WITH_CODEX=false
+REPORT_TIMEOUT_SECONDS="${REPORT_TIMEOUT_SECONDS:-120}"
+REPORT_AGENT_CMD="${REPORT_AGENT_CMD:-codex exec}"
+
+if [[ ! -x "$RUN_ONCE_SCRIPT" ]]; then
+	echo "Missing executable: $RUN_ONCE_SCRIPT"
+	echo "Run: chmod +x scripts/docs-sweep-once.sh"
+	exit 1
+fi
+
+usage() {
+	cat << 'EOF'
+Usage: scripts/docs-sweep-watch.sh [options]
+
+Options:
+  -r, --report  One-off: summarize current log with Codex and exit.
+  -h, --help    Show this help message.
+EOF
+}
+
+trim_log_runs() {
+	# Keep only the last 50 docs-sweep runs in the shared log file.
+	if [[ ! -f "$LOG_FILE" ]]; then
+		return
+	fi
+
+	local keep_runs=50
+	local start_line
+	start_line="$(
+		awk -v max="$keep_runs" '
+			/state changed; starting docs sweep/ { lines[++count] = NR }
+			END {
+				if (count > max) print lines[count - max + 1]
+				else print 0
+			}
+		' "$LOG_FILE"
+	)"
+
+	if [[ "$start_line" =~ ^[0-9]+$ ]] && (( start_line > 0 )); then
+		local tmp_file
+		tmp_file="$(mktemp "${LOG_FILE}.XXXXXX")"
+		tail -n +"$start_line" "$LOG_FILE" > "$tmp_file"
+		mv "$tmp_file" "$LOG_FILE"
+	fi
+}
+
+run_report() {
+	if [[ ! -f "$LOG_FILE" ]]; then
+		echo "[REPORT] log file not found: $LOG_FILE"
+		return
+	fi
+
+	if [[ ! -s "$LOG_FILE" ]]; then
+		echo "[REPORT] log file empty: $LOG_FILE"
+		return
+	fi
+
+	local report_prompt
+	read -r -d '' report_prompt << EOF || true
+Summarize docs sweep log. Output:
+- Changes made (short bullets; file-focused when possible)
+- Open questions / uncertainty
+- Left undone / follow-up items
+
+Constraints:
+- Be concise.
+- If uncertain, say uncertain.
+Read this file directly:
+$LOG_FILE
+EOF
+
+	echo "[REPORT] codex summary start"
+	local report_file
+	local report_stderr
+	report_file="$(mktemp /tmp/docs-sweep-report.XXXXXX)"
+	report_stderr="$(mktemp /tmp/docs-sweep-report-stderr.XXXXXX)"
+	(
+		cd "$REPO"
+		timeout "${REPORT_TIMEOUT_SECONDS}s" bash -lc "$REPORT_AGENT_CMD -o $(printf '%q' "$report_file") $(printf '%q' "$report_prompt")" > /dev/null 2> "$report_stderr"
+	)
+	local report_exit=$?
+	if (( report_exit != 0 )); then
+		echo "[REPORT] codex summary failed (exit $report_exit)"
+		cat "$report_stderr"
+		echo
+		echo "[REPORT] codex summary end"
+		return
+	fi
+	if [[ -s "$report_file" ]]; then
+		cat "$report_file"
+	else
+		echo "[REPORT] codex produced no final message"
+	fi
+	echo
+	echo "[REPORT] codex summary end"
+}
+
+while (( $# > 0 )); do
+	case "$1" in
+	-r|--report)
+		REPORT_WITH_CODEX=true
+		shift
+		;;
+	-h|--help)
+		usage
+		exit 0
+		;;
+	*)
+		echo "Unknown option: $1"
+		usage
+		exit 1
+		;;
+	esac
+done
+
+if [[ "$REPORT_WITH_CODEX" == "true" ]]; then
+	trim_log_runs
+	run_report
+	exit 0
+fi
+
+stop_requested=false
+trap 'stop_requested=true' INT TERM
+
+echo "Starting docs sweep watcher (interval: ${INTERVAL_SECONDS}s). Press Ctrl+C to stop."
+
+while true; do
+	run_started_at="$(date -Is)"
+	echo "[RUN] [$run_started_at] docs sweep cycle running"
+	if "$RUN_ONCE_SCRIPT"; then
+		run_finished_at="$(date -Is)"
+		echo "[OK]  [$run_finished_at] docs sweep cycle complete"
+	else
+		run_failed_at="$(date -Is)"
+		exit_code=$?
+		echo "[FAIL] [$run_failed_at] docs sweep cycle failed (exit $exit_code)"
+	fi
+	trim_log_runs
+
+	if [[ "$stop_requested" == "true" ]]; then
+		break
+	fi
+
+	sleep "$INTERVAL_SECONDS" &
+	wait $!
+
+	if [[ "$stop_requested" == "true" ]]; then
+		break
+	fi
+done
+
+echo "Docs sweep watcher stopped."