diff --git a/.agents/scripts/pulse-wrapper.sh b/.agents/scripts/pulse-wrapper.sh
index 73260776e..e7f19562c 100755
--- a/.agents/scripts/pulse-wrapper.sh
+++ b/.agents/scripts/pulse-wrapper.sh
@@ -211,7 +211,13 @@ WRAPPER_LOGFILE="${HOME}/.aidevops/logs/pulse-wrapper.log"
 SESSION_FLAG="${HOME}/.aidevops/logs/pulse-session.flag"
 STOP_FLAG="${HOME}/.aidevops/logs/pulse-session.stop"
 OPENCODE_BIN="${OPENCODE_BIN:-$(command -v opencode 2>/dev/null || echo "opencode")}"
-PULSE_DIR="${PULSE_DIR:-${HOME}/Git/aidevops}"
+# PULSE_DIR: working directory for the supervisor pulse session.
+# Defaults to a neutral workspace path so pulse sessions are not associated
+# with any specific managed repo in the host app's session database.
+# Previously defaulted to ~/Git/aidevops, which caused 155+ orphaned sessions
+# to accumulate under that project even when it had pulse:false (GH#5136).
+# Override via env var if a specific directory is needed.
+PULSE_DIR="${PULSE_DIR:-${HOME}/.aidevops/.agent-workspace}"
 PULSE_MODEL="${PULSE_MODEL:-}"
 HEADLESS_RUNTIME_HELPER="${HEADLESS_RUNTIME_HELPER:-${SCRIPT_DIR}/headless-runtime-helper.sh}"
 REPOS_JSON="${REPOS_JSON:-${HOME}/.config/aidevops/repos.json}"
@@ -226,9 +232,10 @@ if [[ ! -x "$HEADLESS_RUNTIME_HELPER" ]]; then
 fi
 
 #######################################
-# Ensure log directory exists
+# Ensure log and workspace directories exist
 #######################################
 mkdir -p "$(dirname "$PIDFILE")"
+mkdir -p "$PULSE_DIR"
 
 #######################################
 # Acquire an exclusive instance lock using mkdir atomicity (GH#4513)
@@ -1842,8 +1849,14 @@ gathered by pulse-wrapper.sh BEFORE this session started."
 	fi
 
 	# Run the provider-aware headless wrapper in background.
-	# It alternates direct Anthropic/OpenAI models, persists pulse sessions per
-	# provider, and avoids opencode/* gateway models for headless runs.
+	# It alternates direct Anthropic/OpenAI models and avoids opencode/*
+	# gateway models for headless runs.
+	# Session reuse is intentionally DISABLED for pulse role (GH#5136,
+	# headless-runtime-helper.sh line 804-809): each cycle clears the
+	# persisted session ID to avoid stale conversational context contaminating
+	# dispatch decisions. This means each cycle creates a fresh session.
+	# PULSE_DIR uses a neutral workspace path (not a managed repo) so these
+	# sessions don't pollute any project's session list.
 	local -a pulse_cmd=("$HEADLESS_RUNTIME_HELPER" run --role pulse --session-key supervisor-pulse --dir "$PULSE_DIR" --title "Supervisor Pulse" --agent Automate --prompt "$prompt")
 	if [[ -n "$PULSE_MODEL" ]]; then
 		pulse_cmd+=(--model "$PULSE_MODEL")
diff --git a/setup.sh b/setup.sh
index 6eced9737..9792f1e24 100755
--- a/setup.sh
+++ b/setup.sh
@@ -892,10 +892,6 @@ main() {
 	#   - Non-interactive: only installs if config explicitly says true
 	local wrapper_script="$HOME/.aidevops/agents/scripts/pulse-wrapper.sh"
 	local pulse_label="com.aidevops.aidevops-supervisor-pulse"
-	local _aidevops_dir _pulse_repo_dir
-	_aidevops_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-	_pulse_repo_dir=$(_resolve_main_worktree_dir "$_aidevops_dir")
-
 	# Read explicit user consent from config.jsonc (not merged defaults).
 	# Empty = user never configured this; "true"/"false" = explicit choice.
 	local _pulse_user_config=""
@@ -1009,12 +1005,14 @@ main() {
 
 			# XML-escape paths for safe plist embedding (prevents injection
 			# if $HOME or paths contain &, <, > characters)
-			local _xml_wrapper_script _xml_home _xml_opencode_bin _xml_aidevops_dir _xml_path
+			local _xml_wrapper_script _xml_home _xml_opencode_bin _xml_pulse_dir _xml_path
 			local _headless_xml_env=""
 			_xml_wrapper_script=$(_xml_escape "$wrapper_script")
 			_xml_home=$(_xml_escape "$HOME")
 			_xml_opencode_bin=$(_xml_escape "$opencode_bin")
-			_xml_aidevops_dir=$(_xml_escape "$_pulse_repo_dir")
+			# Use neutral workspace path for PULSE_DIR so supervisor sessions
+			# are not associated with any specific managed repo (GH#5136).
+			_xml_pulse_dir=$(_xml_escape "${HOME}/.aidevops/.agent-workspace")
 			_xml_path=$(_xml_escape "$PATH")
 			if [[ -n "${AIDEVOPS_HEADLESS_MODELS:-}" ]]; then
 				local _xml_headless_models
@@ -1061,7 +1059,7 @@ main() {
 		<key>OPENCODE_BIN</key>
 		<string>${_xml_opencode_bin}</string>
 		<key>PULSE_DIR</key>
-		<string>${_xml_aidevops_dir}</string>
+		<string>${_xml_pulse_dir}</string>
 		<key>PULSE_STALE_THRESHOLD</key>
 		<string>1800</string>
 		${_headless_xml_env}
@@ -1092,8 +1090,9 @@ PLIST
 			# PATH= here, it overrides the global line and breaks nvm/bun/cargo.
 			# OPENCODE_BIN removed — resolved from PATH at runtime via command -v.
 			# See #4099 and #4240 for history.
-			local _cron_aidevops_dir _cron_wrapper_script _cron_headless_env=""
-			_cron_aidevops_dir=$(_cron_escape "$_pulse_repo_dir")
+			local _cron_pulse_dir _cron_wrapper_script _cron_headless_env=""
+			# Use neutral workspace path for PULSE_DIR (GH#5136)
+			_cron_pulse_dir=$(_cron_escape "${HOME}/.aidevops/.agent-workspace")
 			_cron_wrapper_script=$(_cron_escape "$wrapper_script")
 			if [[ -n "${AIDEVOPS_HEADLESS_MODELS:-}" ]]; then
 				local _cron_headless_models
@@ -1107,7 +1106,7 @@ PLIST
 			fi
 			(
 				crontab -l 2>/dev/null | grep -v 'aidevops: supervisor-pulse'
-				echo "*/2 * * * * PULSE_DIR=${_cron_aidevops_dir}${_cron_headless_env} /bin/bash ${_cron_wrapper_script} >> \"\$HOME/.aidevops/logs/pulse-wrapper.log\" 2>&1 # aidevops: supervisor-pulse"
+				echo "*/2 * * * * PULSE_DIR=${_cron_pulse_dir}${_cron_headless_env} /bin/bash ${_cron_wrapper_script} >> \"\$HOME/.aidevops/logs/pulse-wrapper.log\" 2>&1 # aidevops: supervisor-pulse"
 			) | crontab - || true
 			if crontab -l 2>/dev/null | grep -qF "aidevops: supervisor-pulse"; then
 				print_info "Supervisor pulse enabled (cron, every 2 min). Disable: crontab -e and remove the supervisor-pulse line"