refactor(bridge): migrate gravity bridge to pure websocket gateway architecture, deleting legacy local file scanners and dependencies

bot.py

@@ -30,8 +30,7 @@ from parser import (
     md_to_discord_text,
     format_task_embed_text,
 )
-from watcher import BrainEvent, EventType
-from bridge import BridgeProtocol, ApprovalRequest, UserResponse
+from models import BrainEvent, EventType, ApprovalRequest, UserResponse
 
 logger = logging.getLogger(__name__)
 
@@ -47,10 +46,9 @@ class ApprovalView(discord.ui.View):
        (e.g., ✅ Allow Once / ✅ Allow This Conversation / ❌ Deny)
     """
 
-    def __init__(self, bridge: BridgeProtocol, request: ApprovalRequest,
+    def __init__(self, request: ApprovalRequest,
                  buttons: list[dict] | None = None, hub=None):
         super().__init__(timeout=1800)  # 30 minutes
-        self.bridge = bridge
         self.hub = hub  # WSHub instance for WS response routing
         self.request = request
         self.responded = False
@@ -100,12 +98,9 @@ class ApprovalView(discord.ui.View):
             # Hub WS route (primary — reaches remote Extensions)
             delivered = False
             if self.hub:
-                delivered = await self.hub.send_response_to_pending_owner(self.request.request_id, {
+                await self.hub.send_response_to_pending_owner(self.request.request_id, {
                     "type": "response", "data": response_data,
                 })
-            if not delivered:
-                # File bridge fallback (Hub unavailable OR owner disconnected)
-                self.bridge.write_response(UserResponse(**response_data))
             embed = interaction.message.embeds[0] if interaction.message.embeds else None
             if embed:
                 color = discord.Color.red() if is_reject else discord.Color.green()
@@ -131,13 +126,10 @@ class ApprovalView(discord.ui.View):
             "step_type": getattr(self.request, 'step_type', ''),
             "project_name": getattr(self.request, 'project_name', ''),
         }
-        delivered = False
         if self.hub:
-            delivered = await self.hub.send_response_to_pending_owner(self.request.request_id, {
+            await self.hub.send_response_to_pending_owner(self.request.request_id, {
                 "type": "response", "data": response_data,
             })
-        if not delivered:
-            self.bridge.write_response(UserResponse(**response_data))
         embed = interaction.message.embeds[0] if interaction.message.embeds else None
         if embed:
             embed.color = discord.Color.green()
@@ -158,13 +150,10 @@ class ApprovalView(discord.ui.View):
             "step_type": getattr(self.request, 'step_type', ''),
             "project_name": getattr(self.request, 'project_name', ''),
         }
-        delivered = False
         if self.hub:
-            delivered = await self.hub.send_response_to_pending_owner(self.request.request_id, {
+            await self.hub.send_response_to_pending_owner(self.request.request_id, {
                 "type": "response", "data": response_data,
             })
-        if not delivered:
-            self.bridge.write_response(UserResponse(**response_data))
         embed = interaction.message.embeds[0] if interaction.message.embeds else None
         if embed:
             embed.color = discord.Color.red()
@@ -172,12 +161,14 @@ class ApprovalView(discord.ui.View):
         await interaction.response.edit_message(embed=embed, view=None)
 
     async def on_timeout(self):
-        if not self.responded:
-            self.bridge.write_response(UserResponse(
-                request_id=self.request.request_id, approved=False,
-                step_type=getattr(self.request, 'step_type', ''),
-                project_name=getattr(self.request, 'project_name', ''),
-            ))
+        if not self.responded and self.hub:
+            await self.hub.send_response_to_pending_owner(self.request.request_id, {
+                "type": "response", "data": {
+                    "request_id": self.request.request_id, "approved": False,
+                    "step_type": getattr(self.request, 'step_type', ''),
+                    "project_name": getattr(self.request, 'project_name', ''),
+                }
+            })
 
 
 # ─── Bot ─────────────────────────────────────────────────────────────
@@ -207,7 +198,6 @@ class GravityBot(commands.Bot):
         self._sent_commands: dict[str, str] = {}  # request_id → command text (for MERGE edit detection)
         self._ready_event = asyncio.Event()
         self._channel_lock = asyncio.Lock()
-        self.bridge = BridgeProtocol()
         self.session_category: discord.CategoryChannel | None = None
         self.guild: discord.Guild | None = None
         self.auto_approve_projects: set[str] = set()  # projects with auto-approve enabled
@@ -233,7 +223,7 @@ class GravityBot(commands.Bot):
             "project_name": kwargs.get('project_name', project),
         }
 
-        # Hub route (primary — skip file bridge to prevent double delivery)
+        # Hub route (primary)
         if self.hub:
             import time as _time
             cmd_data["id"] = str(int(_time.time() * 1000))
@@ -246,14 +236,6 @@ class GravityBot(commands.Bot):
                 asyncio.create_task(
                     self.hub.broadcast_to_project(project, msg)
                 )
-            return  # ← WS sent, skip file bridge
-
-        # Legacy fallback (file bridge + gateway HTTP) — only when Hub is unavailable
-        self.bridge.write_command(project, text, **kwargs)
-        if self.gateway:
-            import time as _time
-            cmd_data["id"] = cmd_data.get("id", str(int(_time.time() * 1000)))
-            self.gateway.push_command(project, cmd_data)
 
     def _cap_dict(self, d: dict, max_size: int = 5000):
         """Prevent memory leaks by capping dictionary sizes using insertion order (oldest first)."""
@@ -269,8 +251,6 @@ class GravityBot(commands.Bot):
 
     async def setup_hook(self):
         self.loop.create_task(self._process_events())
-        self.pending_approval_scanner.start()
-        self.chat_snapshot_scanner.start()
         self._register_slash_commands()
         # Register Hub handlers (if Hub is available, set after setup_hook by main.py)
         asyncio.get_event_loop().call_soon(self._register_hub_handlers)
@@ -353,57 +333,12 @@ class GravityBot(commands.Bot):
                 logger.error("No permission to create category!")
                 return
 
-        # Discover existing project channels
-        await self._discover_channels()
-
-        # Load conversation → project registrations from Extension
-        self._load_registrations()
-
-        # Sync slash commands to guild
-        try:
-            self.tree.copy_global_to(guild=self.guild)
-            synced = await self.tree.sync(guild=self.guild)
-            logger.info(f"Synced {len(synced)} slash commands to guild")
-        except Exception as e:
-            logger.warning(f"Slash command sync failed: {e}")
-
-        # Open the gate
+        # Start WS Hub processors by ensuring ready gate is open
         self._ready_event.set()
         logger.info("Ready gate opened — event processing enabled")
 
-        # Start scanner loops
-        if not self.pending_approval_scanner.is_running():
-            self.pending_approval_scanner.start()
-        if not self.chat_snapshot_scanner.is_running():
-            self.chat_snapshot_scanner.start()
-        logger.info("Scanner loops started")
-
     # ─── Channel Management ──────────────────────────────────────────
 
-    def _load_registrations(self):
-        """Read bridge/register/ to learn conversation → project mappings."""
-        register_dir = self.bridge.bridge_dir / "register"
-        if not register_dir.exists():
-            return
-
-        count = 0
-        for f in register_dir.glob("*.json"):
-            try:
-                data = json.loads(f.read_text(encoding="utf-8-sig"))
-                conv_id = data.get("conversation_id", "")
-                project = data.get("project_name", "")
-                if conv_id and project:
-                    self.conv_to_project[conv_id] = project
-                    count += 1
-            except (json.JSONDecodeError, OSError):
-                pass
-
-        # Only log when count changes
-        prev = getattr(self, '_last_reg_count', -1)
-        if count != prev:
-            self._last_reg_count = count
-            if count:
-                logger.info(f"Loaded {count} conversation→project registrations")
 
     # ─── Channel Management ──────────────────────────────────────────
 
@@ -618,270 +553,7 @@ class GravityBot(commands.Bot):
 
     # ─── Approval Scanner ────────────────────────────────────────────
 
-    @tasks.loop(seconds=30)  # Hub mode: WS is primary, file scan is fallback only
-    async def pending_approval_scanner(self):
-        """Scan bridge/pending/ for new approval requests + reload registrations.
 
-        Per-tick caps prevent Discord API rate limit cascade when multiple
-        projects generate pending files simultaneously.
-        """
-        try:
-            # Reload conv→project registrations each cycle
-            self._load_registrations()
-
-            # Channels are created on-demand when actual signals arrive
-            # (via _get_channel in snapshot scanner / approval sender)
-
-            MAX_NEW_PER_TICK = 5     # Phase 1: max new pending to process per tick
-            MAX_STATUS_PER_TICK = 5  # Phase 2: max status changes to process per tick
-            phase1_processed = 0
-
-            requests = self.bridge.get_pending_requests()
-            for req in requests:
-                if phase1_processed >= MAX_NEW_PER_TICK:
-                    break
-                if req.request_id in self._sent_approval_ids:
-                    continue
-                if req.discord_message_id != 0:
-                    continue
-
-                # Learn project mapping from pending approval
-                project = req.project_name or Config.PROJECT_NAME
-                if req.conversation_id and req.conversation_id != '__global__':
-                    self.conv_to_project[req.conversation_id] = project
-
-                # ── SafeToAutoRun: approve immediately and quietly ──
-                if getattr(req, "safe_to_auto_run", False):
-                    self._cap_dict(self._sent_approval_ids)
-                    self._sent_approval_ids[req.request_id] = True
-
-                    # Generate approve response back to extension
-                    approve_btn_index = 0
-                    pending_file = self.bridge.pending_dir / f"{req.request_id}.json"
-                    if pending_file.exists():
-                        try:
-                            pdata = json.loads(pending_file.read_text(encoding="utf-8-sig"))
-                            btns = pdata.get("buttons")
-                            if btns and len(btns) > 1:
-                                reject_words = {"deny", "reject", "cancel", "reject all", "decline", "dismiss", "stop"}
-                                for b in btns:
-                                    txt = b.get("text", "").lower().strip()
-                                    if txt not in reject_words:
-                                        approve_btn_index = b.get("index", 0)
-                                        break
-                        except (json.JSONDecodeError, OSError):
-                            pass
-                    
-                    self.bridge.write_response(UserResponse(
-                        request_id=req.request_id,
-                        approved=True,
-                        button_index=approve_btn_index,
-                        step_type=getattr(req, 'step_type', ''),
-                        project_name=project,
-                    ))
-                    logger.info(f"SafeToAutoRun (Quietly Auto-approved): {req.request_id[:12]} project={project}")
-                    phase1_processed += 1
-                    continue
-
-                # ── Auto-approve: if project has auto enabled, approve immediately ──
-                if project in self.auto_approve_projects:
-                    # Defence: reject-word commands should NEVER be auto-approved
-                    # (DOM observer may create standalone "Deny" pending from file_permission UI)
-                    reject_commands = {"deny", "reject", "cancel", "decline", "dismiss", "stop"}
-                    if req.command.strip().lower() in reject_commands:
-                        logger.warning(f"Auto-approve BLOCKED: command='{req.command}' is reject-word — skipping")
-                        self._cap_dict(self._sent_approval_ids)
-                        self._sent_approval_ids[req.request_id] = True
-                        phase1_processed += 1
-                        continue
-
-                    self._cap_dict(self._sent_approval_ids)
-                    self._sent_approval_ids[req.request_id] = True
-
-                    # Smart button_index: read buttons array from pending file
-                    # file_permission buttons = [Allow Once(0), Allow This Conv(1), Deny(2)]
-                    # MUST pick non-reject button for safety
-                    approve_btn_index = 0
-                    pending_file = self.bridge.pending_dir / f"{req.request_id}.json"
-                    if pending_file.exists():
-                        try:
-                            pdata = json.loads(pending_file.read_text(encoding="utf-8-sig"))
-                            btns = pdata.get("buttons")
-                            if btns and len(btns) > 1:
-                                reject_words = {"deny", "reject", "cancel", "reject all",
-                                                "decline", "dismiss", "stop"}
-                                for b in btns:
-                                    txt = b.get("text", "").lower().strip()
-                                    if txt not in reject_words:
-                                        approve_btn_index = b.get("index", 0)
-                                        break
-                        except (json.JSONDecodeError, OSError):
-                            pass
-
-                    # Write auto-approve response for Extension
-                    self.bridge.write_response(UserResponse(
-                        request_id=req.request_id,
-                        approved=True,
-                        button_index=approve_btn_index,
-                        step_type=getattr(req, 'step_type', ''),
-                        project_name=project,
-                    ))
-                    # Show compact auto-approved embed in Discord
-                    channel = await self._get_channel(project)
-                    if channel:
-                        try:
-                            embed = discord.Embed(
-                                title="🤖 자동 승인됨",
-                                description=f"✅ **{req.command}**\n\n```\n{req.description[:2000]}\n```" if getattr(req, "description", "") else f"✅ **{req.command}**",
-                                color=discord.Color.green(),
-                            )
-                            embed.set_footer(text=f"auto-approve | {req.request_id[:12]}")
-                            await channel.send(embed=embed)
-                        except Exception as e:
-                            logger.error(f"[AUTO-APPROVE] Discord send failed for {project}: {e}")
-                    else:
-                        logger.warning(f"[AUTO-APPROVE] No Discord channel for project={project} — notification skipped")
-                    logger.info(f"Auto-approved: {req.request_id[:12]} project={project} btn_idx={approve_btn_index}")
-                    phase1_processed += 1
-                    continue
-
-                # Defer short-command pendings (e.g. "Run") by 4 cycles (~12s)
-                # to give step_probe time to merge detailed command info
-                # (step_probe MERGE happens ~10s after pending creation)
-                if len(req.command) <= 15:
-                    if req.request_id not in self._deferred_ids:
-                        self._deferred_ids[req.request_id] = 1
-                        continue  # skip this cycle
-                    elif self._deferred_ids[req.request_id] < 4:
-                        self._deferred_ids[req.request_id] += 1
-                        # Re-read from file (step_probe may have merged)
-                        fresh = self.bridge.read_pending_request(req.request_id)
-                        if fresh and len(fresh.command) > 15:
-                            req = fresh  # use merged version — send now!
-                        else:
-                            continue  # wait one more cycle
-
-                # Clean up defer tracking
-                self._deferred_ids.pop(req.request_id, None)
-
-                channel = await self._get_channel(project)
-                if channel:
-                    self._cap_dict(self._sent_approval_ids)
-                    self._sent_approval_ids[req.request_id] = True
-                    self._cap_dict(self._sent_commands)
-                    self._sent_commands[req.request_id] = req.command
-                    await self._send_approval_request(channel, req)
-                    phase1_processed += 1
-                else:
-                    logger.warning(f"[APPROVAL] No Discord channel for project={project} — approval request skipped (rid={req.request_id[:12]})")
-
-            # ── Single-pass: handle auto_resolved, expired, and MERGE in one glob ──
-            phase2_processed = 0
-            for f in self.bridge.pending_dir.glob("*.json"):
-                if phase2_processed >= MAX_STATUS_PER_TICK:
-                    break
-                try:
-                    data = json.loads(f.read_text(encoding="utf-8-sig"))
-                    status = data.get("status", "pending")
-                    rid = data.get("request_id", "")
-
-                    if status == "auto_resolved":
-                        # FIX #5: Use _approval_messages as fallback when discord_message_id is 0
-                        msg_id = data.get("discord_message_id", 0) or self._approval_messages.get(rid, 0)
-                        project = data.get("project_name", Config.PROJECT_NAME)
-                        logger.info(f"[AUTO-RESOLVED] rid={rid[:12]} project={project} msg_id={msg_id} cmd='{data.get('command', '')[:60]}'")
-                        if msg_id:
-                            channel = await self._get_channel(project)
-                            if channel:
-                                try:
-                                    msg = await channel.fetch_message(msg_id)
-                                    embed = discord.Embed(
-                                        title="✅ AG에서 직접 승인됨",
-                                        description=f"```\n{data.get('command', '')[:500]}\n```",
-                                        color=discord.Color.green(),
-                                    )
-                                    embed.set_footer(text=f"ID: {rid}")
-                                    await msg.edit(embed=embed, view=None)
-                                    logger.info(f"[AUTO-RESOLVED] ✅ Discord message {msg_id} updated")
-                                except discord.NotFound:
-                                    logger.warning(f"[AUTO-RESOLVED] Discord message {msg_id} not found")
-                        else:
-                            logger.warning(f"[AUTO-RESOLVED] No msg_id for rid={rid[:12]} — cannot edit Discord message")
-                        f.unlink()
-                        self._deferred_ids.pop(rid, None)
-                        self._sent_commands.pop(rid, None)
-                        self._approval_messages.pop(rid, None)
-                        self._sent_approval_ids.pop(rid, None)
-                        phase2_processed += 1
-
-                    elif status == "expired":
-                        msg_id = data.get("discord_message_id", 0)
-                        project = data.get("project_name", Config.PROJECT_NAME)
-                        if msg_id:
-                            channel = await self._get_channel(project)
-                            if channel:
-                                try:
-                                    msg = await channel.fetch_message(msg_id)
-                                    embed = discord.Embed(
-                                        title="⏰ 만료됨",
-                                        description=f"```\n{data.get('command', '')[:500]}\n```",
-                                        color=discord.Color.light_grey(),
-                                    )
-                                    embed.set_footer(text=f"ID: {rid}")
-                                    await msg.edit(embed=embed, view=None)
-                                except discord.NotFound:
-                                    pass
-                        f.unlink()
-                        self._deferred_ids.pop(rid, None)
-                        self._sent_commands.pop(rid, None)
-                        self._sent_approval_ids.pop(rid, None)
-                        phase2_processed += 1
-
-                    elif status == "pending":
-                        # MERGE check: step_probe updated command in already-sent pending
-                        if rid not in self._sent_approval_ids:
-                            continue
-                        msg_id = data.get("discord_message_id", 0)
-                        if not msg_id:
-                            continue
-                        new_cmd = data.get("command", "")
-                        old_cmd = self._sent_commands.get(rid, "")
-                        if new_cmd and new_cmd != old_cmd and len(new_cmd) > len(old_cmd):
-                            self._sent_commands[rid] = new_cmd
-                            project = data.get("project_name", Config.PROJECT_NAME)
-                            channel = await self._get_channel(project)
-                            if channel:
-                                try:
-                                    msg = await channel.fetch_message(msg_id)
-                                    buttons = data.get("buttons")
-                                    desc_parts = [f"**명령어:**\n```\n{new_cmd[:1000]}\n```"]
-                                    if buttons and len(buttons) > 1:
-                                        btn_names = [b.get("text", "?") for b in buttons]
-                                        desc_parts.append(f"**선택지:** {' / '.join(btn_names)}")
-                                    desc = data.get("description", "")
-                                    if desc:
-                                        desc_parts.append(desc[:500])
-                                    embed = discord.Embed(
-                                        title="⚠️ 승인 요청",
-                                        description="\n".join(desc_parts),
-                                        color=discord.Color.orange(),
-                                        timestamp=datetime.now(timezone.utc),
-                                    )
-                                    embed.set_footer(text=f"ID: {rid}")
-                                    await msg.edit(embed=embed)
-                                    logger.info(f"MERGE edit: {rid[:12]} cmd='{new_cmd[:60]}'")
-                                except discord.NotFound:
-                                    pass
-
-                except (json.JSONDecodeError, OSError):
-                    pass
-
-        except Exception as e:
-            logger.error(f"Error scanning approvals: {e}")
-
-    @pending_approval_scanner.before_loop
-    async def before_scanner(self):
-        await self.wait_until_ready()
 
     async def _send_approval_request(
         self, channel: discord.TextChannel, request: ApprovalRequest
@@ -1133,9 +805,8 @@ class GravityBot(commands.Bot):
         self._cap_dict(self._sent_approval_ids)
         self._sent_approval_ids[request.request_id] = True
 
-        delivered = False
         if self.hub:
-            delivered = await self.hub.send_response_to_pending_owner(request.request_id, {
+            await self.hub.send_response_to_pending_owner(request.request_id, {
                 "type": "response",
                 "data": {
                     "request_id": request.request_id,
@@ -1145,13 +816,6 @@ class GravityBot(commands.Bot):
                     "project_name": request.project_name,
                 },
             })
-        if not delivered:
-            # File bridge fallback (Hub unavailable OR owner disconnected)
-            self.bridge.write_response(UserResponse(
-                request_id=request.request_id, approved=True,
-                step_type=request.step_type,
-                project_name=request.project_name,
-            ))
         # Send compact auto-approved embed to Discord (was missing — caused silent approvals)
         channel = await self._get_channel(request.project_name)
         if channel:
@@ -1282,114 +946,4 @@ class GravityBot(commands.Bot):
 
     # ─── Chat Snapshot Scanner ─────────────────────────────────────────
 
-    @tasks.loop(seconds=30)  # Hub mode: WS is primary, file scan is fallback only
-    async def chat_snapshot_scanner(self):
-        """Scan bridge/chat_snapshots/ for AI response dumps."""
-        try:
-            snapshot_dir = self.bridge.bridge_dir / "chat_snapshots"
-            if not snapshot_dir.exists():
-                return
 
-            for f in snapshot_dir.glob("*.json"):
-                try:
-                    data = json.loads(f.read_text(encoding="utf-8-sig"))
-                    project = data.get("project_name", Config.PROJECT_NAME)
-                    content = data.get("content", "")
-                    attached_files = data.get("attached_files", [])
-
-                    if content or attached_files:
-                        channel = await self._get_channel(project)
-                        if not channel:
-                            logger.warning(f"[SNAPSHOT] No Discord channel for project={project} — snapshot skipped (len={len(content)})")
-                        elif channel:
-                            import io
-
-                            # ── Send attached files (from Extension's writeChatSnapshotWithFiles) ──
-                            discord_files = []
-                            for af in attached_files:
-                                af_name = af.get("name", "document.md")
-                                af_content = af.get("content", "")
-                                if af_content:
-                                    discord_files.append(discord.File(
-                                        io.BytesIO(af_content.encode("utf-8")),
-                                        filename=af_name,
-                                    ))
-
-                            FILE_ATTACH_THRESHOLD = 4000
-                            if len(content) > FILE_ATTACH_THRESHOLD:
-                                # Long chat content → summary embed + file attachment
-                                summary = content[:500].rsplit('\n', 1)[0]
-                                embed = discord.Embed(
-                                    title="💬 AI 대화 내용",
-                                    description=f"{summary}\n\n📎 *전체 내용은 첨부 파일 참조* ({len(content):,}자)",
-                                    color=discord.Color.purple(),
-                                    timestamp=datetime.now(timezone.utc),
-                                )
-                                # Add content itself as file attachment
-                                discord_files.append(discord.File(
-                                    io.BytesIO(content.encode("utf-8")),
-                                    filename="chat_message.md",
-                                ))
-                                try:
-                                    await channel.send(embed=embed, files=discord_files)
-                                    logger.info(f"[SNAPSHOT] Sent to #{channel.name} (file, {len(content)} chars)")
-                                except discord.NotFound:
-                                    logger.warning(f"Channel deleted for {project}, re-creating...")
-                                    self.project_channels.pop(project, None)
-                                    channel = await self._get_channel(project)
-                                    if channel:
-                                        # Re-create files (discord.File consumed after send)
-                                        discord_files2 = []
-                                        for af in attached_files:
-                                            af_name = af.get("name", "document.md")
-                                            af_content = af.get("content", "")
-                                            if af_content:
-                                                discord_files2.append(discord.File(
-                                                    io.BytesIO(af_content.encode("utf-8")),
-                                                    filename=af_name,
-                                                ))
-                                        discord_files2.append(discord.File(
-                                            io.BytesIO(content.encode("utf-8")),
-                                            filename="chat_message.md",
-                                        ))
-                                        await channel.send(embed=embed, files=discord_files2)
-                                        logger.info(f"[SNAPSHOT] Sent to #{channel.name} after re-create (file, {len(content)} chars)")
-                                except Exception as e:
-                                    logger.error(f"[SNAPSHOT] Discord send failed for {project}: {e}")
-                            else:
-                                # Short content → inline embed (original)
-                                embed = discord.Embed(
-                                    title="💬 AI 대화 내용",
-                                    description=content,
-                                    color=discord.Color.purple(),
-                                    timestamp=datetime.now(timezone.utc),
-                                )
-                                try:
-                                    await channel.send(
-                                        embed=embed,
-                                        files=discord_files if discord_files else discord.utils.MISSING,
-                                    )
-                                    logger.info(f"[SNAPSHOT] Sent to #{channel.name} (inline, {len(content)} chars)")
-                                except discord.NotFound:
-                                    logger.warning(f"Channel deleted for {project}, re-creating...")
-                                    self.project_channels.pop(project, None)
-                                    channel = await self._get_channel(project)
-                                    if channel:
-                                        await channel.send(embed=embed)
-                                        logger.info(f"[SNAPSHOT] Sent to #{channel.name} after re-create (inline)")
-                                except Exception as e:
-                                    logger.error(f"[SNAPSHOT] Discord send failed for {project}: {e}")
-
-                    f.unlink()  # Cleanup
-                except Exception as e:
-                    logger.warning(f"Bad chat snapshot {f.name}: {e}")
-                    try:
-                        f.rename(f.with_suffix('.json.failed'))
-                    except OSError:
-                        pass
-        except Exception as e:
-            logger.error(f"Error scanning chat snapshots: {e}")
-
-    @chat_snapshot_scanner.before_loop
-    async def before_chat_scanner(self):
-        await self.wait_until_ready()

bridge.py

@@ -1,267 +0,0 @@
-"""Bridge protocol — communication between Discord bot and Antigravity.
-
-Bridge directory: ~/.gemini/antigravity/bridge/
-Structure:
-  bridge/
-    pending/     ← Bot writes approval requests for Discord
-    response/    ← Bot writes user responses from Discord
-    commands/    ← Bot writes user text input from Discord
-
-Protocol:
-1. VS Code Extension detects pending approval → writes JSON to pending/
-2. Bot reads pending/ → sends Discord message with ✅/❌ buttons
-3. User clicks button → Bot writes JSON to response/
-4. VS Code Extension reads response/ → executes action
-"""
-
-import json
-import time
-import logging
-import uuid
-from abc import ABC, abstractmethod
-from pathlib import Path
-from dataclasses import dataclass, asdict
-from enum import Enum
-
-from config import Config
-
-logger = logging.getLogger(__name__)
-
-
-class ApprovalStatus(Enum):
-    PENDING = "pending"
-    APPROVED = "approved"
-    REJECTED = "rejected"
-    TIMEOUT = "timeout"
-
-
-@dataclass
-class ApprovalRequest:
-    """An approval request from Antigravity."""
-    request_id: str
-    conversation_id: str
-    command: str           # The command/action needing approval
-    description: str       # Human-readable description
-    timestamp: float
-    status: str = "pending"
-    discord_message_id: int = 0
-    project_name: str = ""  # Project routing key
-    step_type: str = ""  # e.g. 'diff_review', passed through to response
-    safe_to_auto_run: bool = False  # Allows bot to silently auto-approve
-
-
-
-@dataclass
-class UserResponse:
-    """A user response from Discord."""
-    request_id: str
-    approved: bool
-    user_input: str = ""
-    timestamp: float = 0
-    button_index: int = -1  # -1 = legacy (approve/reject), 0+ = specific button index
-    step_type: str = ""  # pass through from pending for extension routing
-    project_name: str = ""  # for multi-project: extension uses this when pending file is missing
-
-
-# ─── Transport Abstraction ───
-
-class BridgeTransport(ABC):
-    """Abstract transport for bridge I/O.
-
-    Implementations handle reading/writing JSON files for the bridge protocol,
-    regardless of whether the storage is local filesystem or remote HTTP.
-    """
-
-    @abstractmethod
-    def list_json_files(self, subdir: str) -> list[str]:
-        """List JSON filenames in a subdirectory (e.g. 'pending', 'response')."""
-        ...
-
-    @abstractmethod
-    def read_json(self, subdir: str, filename: str) -> dict | None:
-        """Read and parse a JSON file. Returns None if not found or corrupt."""
-        ...
-
-    @abstractmethod
-    def write_json(self, subdir: str, filename: str, data: dict) -> None:
-        """Write data as JSON to a file in the given subdirectory."""
-        ...
-
-    @abstractmethod
-    def delete_file(self, subdir: str, filename: str) -> bool:
-        """Delete a file. Returns True if deleted, False if not found."""
-        ...
-
-    @abstractmethod
-    def ensure_dirs(self) -> None:
-        """Ensure all required subdirectories exist."""
-        ...
-
-
-class LocalTransport(BridgeTransport):
-    """File-system based transport (default, single-PC mode).
-
-    Reads/writes directly to the bridge directory on local disk.
-    This is the existing behavior, extracted into a transport class.
-    """
-
-    def __init__(self, bridge_dir: Path):
-        self.bridge_dir = bridge_dir
-
-    def list_json_files(self, subdir: str) -> list[str]:
-        d = self.bridge_dir / subdir
-        if not d.exists():
-            return []
-        return [f.name for f in d.glob("*.json")]
-
-    def read_json(self, subdir: str, filename: str) -> dict | None:
-        fp = self.bridge_dir / subdir / filename
-        if not fp.exists():
-            return None
-        try:
-            return json.loads(fp.read_text(encoding="utf-8-sig"))
-        except (json.JSONDecodeError, OSError) as e:
-            logger.warning(f"LocalTransport: bad file {subdir}/{filename}: {e}")
-            return None
-
-    def write_json(self, subdir: str, filename: str, data: dict) -> None:
-        d = self.bridge_dir / subdir
-        d.mkdir(parents=True, exist_ok=True)
-        fp = d / filename
-        fp.write_text(
-            json.dumps(data, ensure_ascii=False, indent=2),
-            encoding="utf-8",
-        )
-
-    def delete_file(self, subdir: str, filename: str) -> bool:
-        fp = self.bridge_dir / subdir / filename
-        if fp.exists():
-            try:
-                fp.unlink()
-                return True
-            except OSError:
-                return False
-        return False
-
-    def ensure_dirs(self) -> None:
-        for sub in ("pending", "response", "commands"):
-            (self.bridge_dir / sub).mkdir(parents=True, exist_ok=True)
-
-
-
-# ─── Bridge Protocol (uses Transport) ───
-
-class BridgeProtocol:
-    """Manages the bridge protocol via a pluggable transport."""
-
-    def __init__(self, transport: BridgeTransport | None = None):
-        if transport is None:
-            bridge_dir = Config.BRAIN_PATH.parent / "bridge"
-            transport = LocalTransport(bridge_dir)
-        self.transport = transport
-
-        # Legacy attributes for backward compatibility
-        # (bot.py uses self.bridge.pending_dir etc. in some places)
-        if isinstance(transport, LocalTransport):
-            self.bridge_dir = transport.bridge_dir
-            self.pending_dir = transport.bridge_dir / "pending"
-            self.response_dir = transport.bridge_dir / "response"
-            self.commands_dir = transport.bridge_dir / "commands"
-
-        # Ensure directories exist
-        self.transport.ensure_dirs()
-
-        # Startup cleanup: purge stale pending files (> 5 min old)
-        self._cleanup_stale_pending()
-
-        logger.info(f"Bridge protocol initialized: transport={type(transport).__name__}")
-
-    def _cleanup_stale_pending(self, max_age_seconds: int = 300):
-        """Remove pending files older than max_age_seconds on startup."""
-        now = time.time()
-        cleaned = 0
-        for fname in self.transport.list_json_files("pending"):
-            data = self.transport.read_json("pending", fname)
-            if data is None:
-                self.transport.delete_file("pending", fname)
-                cleaned += 1
-                continue
-            ts = data.get("timestamp", 0)
-            if now - ts > max_age_seconds:
-                self.transport.delete_file("pending", fname)
-                cleaned += 1
-        if cleaned:
-            logger.info(f"Startup cleanup: removed {cleaned} stale pending files")
-
-    def get_pending_requests(self) -> list[ApprovalRequest]:
-        """Read all pending approval requests. Skips files older than 30 minutes."""
-        requests = []
-        fields = {f.name for f in ApprovalRequest.__dataclass_fields__.values()}
-        now = time.time()
-        MAX_AGE = 1800  # 30 minutes (matches Discord button timeout)
-        CLEANUP_AGE = 86400  # 1 day
-        for fname in self.transport.list_json_files("pending"):
-            data = self.transport.read_json("pending", fname)
-            if data is None:
-                continue
-            ts = data.get("timestamp", 0)
-            if now - ts > CLEANUP_AGE:
-                # Too old even to keep as expired — delete to prevent accumulation
-                self.transport.delete_file("pending", fname)
-                continue
-            if now - ts > MAX_AGE:
-                # Too old — mark expired and skip
-                if data.get("status") != "expired":
-                    data["status"] = "expired"
-                    self.transport.write_json("pending", fname, data)
-                continue
-            if data.get("status") == "pending":
-                # Filter to known fields only
-                filtered = {k: v for k, v in data.items() if k in fields}
-                try:
-                    requests.append(ApprovalRequest(**filtered))
-                except TypeError as e:
-                    logger.warning(f"Bad pending request {fname}: {e}")
-        return requests
-
-    def read_pending_request(self, request_id: str) -> ApprovalRequest | None:
-        """Re-read a specific pending request (to get merged data)."""
-        fname = f"{request_id}.json"
-        data = self.transport.read_json("pending", fname)
-        if data is None:
-            return None
-        fields = {fn.name for fn in ApprovalRequest.__dataclass_fields__.values()}
-        filtered = {k: v for k, v in data.items() if k in fields}
-        try:
-            return ApprovalRequest(**filtered)
-        except TypeError:
-            return None
-
-    def write_response(self, response: UserResponse):
-        """Write a user response to the response directory."""
-        response.timestamp = time.time()
-        fname = f"{response.request_id}.json"
-
-        self.transport.write_json("response", fname, asdict(response))
-        logger.info(f"Response written: {fname} (approved={response.approved})")
-
-        # Delete pending file after processing (prevents re-processing and accumulation)
-        self.transport.delete_file("pending", fname)
-
-    def write_command(self, conversation_id: str, text: str, *, project_name: str = ""):
-        """Write a user text command for Antigravity to consume."""
-        cmd_id = f"{int(time.time() * 1000)}_{uuid.uuid4().hex[:8]}"
-        fname = f"{cmd_id}.json"
-
-        data = {
-            "id": cmd_id,
-            "conversation_id": conversation_id,
-            "project_name": project_name,
-            "text": text,
-            "timestamp": time.time(),
-            "consumed": False,
-        }
-
-        self.transport.write_json("commands", fname, data)
-        logger.info(f"Command written: {cmd_id} → project={project_name}")
-        return cmd_id

docs/devlog/2026-04-10.md

@@ -1,4 +1,4 @@
 | NNN | 시간 | 작업 설명 | 커밋해시 | 완료여부 |
 |---|---|---|---|---|
 | 001 | 17:11 | step-probe.ts 의 isRunning 조건 누락으로 인한 릴레이 증발 버그 픽스 | COMMITTING | ✅ |
-| #613 | 21:10 | Bridge Relay AI Chat Body DOM extraction and template literal Regex fix | TBD | ? |
+| #613 | 21:10 | Bridge Relay AI Chat Body DOM extraction and template literal Regex fix | TBD | ✅ |

docs/devlog/2026-04-11.md

@@ -0,0 +1,5 @@
+# 2026-04-11
+
+| NNN | HH:MM | 작업 설명 | `커밋해시` | ✅ 또는 🔧 |
+|-------|-------|----------|-----------|-----------|
+| 001 | 13:04 | Pure 웹소켓 게이트웨이 완전 전환 및 레거시 파일 브릿지 통신코드 삭제 | `TBD` | ✅ |

docs/devlog/entries/20260411-001.md

@@ -0,0 +1,13 @@
+# Pure 웹소켓 게이트웨이 전환 (Legacy 파일 브릿지 통신 완전히 제거)
+
+- **시간**: 2026-04-11 11:00~13:00
+- **Commit**: `(To be updated)`
+- **Vikunja**: #N/A
+
+## 결정 사항
+- 기존 VS Code 익스텐션과 로컬 Discord Bot 간에 이루어지던 `.gemini/antigravity/bridge/` 기반 파일 공유 통신 체계를 100% 제거하였습니다.
+- 파이썬 봇 서버(`bot.py`) 내부에서 동작하던 물리적인 폴링 디렉토리 스캐너(`pending_approval_scanner` 및 `chat_snapshot_scanner`) 파일 디펜던시 루프를 완전히 삭제하고 `Hub` WS 핸들러로 대체했습니다. 봇 패키지에 남아있던 `bridge.py`와 `watcher.py` 또한 사용할 이유가 없어져 레포지토리에서 영구적으로 폐기 구별을 내렸습니다.
+
+## 새로 알게된 사실 혹은 트러블슈팅
+- 익스텐션에서 `activeSessionId` 변경 시 `watcher.py` 대신 Node.js 네이티브 `fs.watch` 기반으로 자체적인 `BrainWatcher`를 인하우스로 구현해 `step-probe.ts`에 주입함으로써 파이썬 의존도를 완전히 분리할 수 있었습니다.
+- 권한 팝업 중복 처리 역시 폴더 스캔 대신 단순히 인메모리 `lastFilePermissionTime` 단일 변수로 최적화되었습니다.

extension/out/extension.js

@@ -120,15 +120,6 @@ function detectProjectName() {
     return 'default';
 }
 // ─── Bridge File I/O ───
-function ensureBridgeDir() {
-    const dirs = ['', 'response', 'commands', 'chat_snapshots'];
-    for (const d of dirs) {
-        const p = path.join(bridgePath, d);
-        if (!fs.existsSync(p)) {
-            fs.mkdirSync(p, { recursive: true });
-        }
-    }
-}
 // Module-level activeSessionId so writeChatSnapshot can register sessions lazily
 let activeSessionId = '';
 let activeTrajectoryId = '';
@@ -136,39 +127,16 @@ let activeTrajectoryId = '';
 const recentDiscordSentTexts = new Map();
 function writeChatSnapshot(text) {
     try {
-        // WS route (preferred) — skip file write to prevent duplicate Discord delivery
         if (wsBridge && wsBridge.isConnected()) {
             wsBridge.sendChat({
                 content: text,
-                conversation_id: activeSessionId,
+                conversation_id: (0, step_probe_1.getActiveSessionId)(),
                 project_name: projectName,
             });
             logToFile(`[SNAPSHOT-WS] sent (${text.length} chars)`);
-            if (activeSessionId) {
-                (0, step_probe_1.writeRegistration)(activeSessionId);
+            if ((0, step_probe_1.getActiveSessionId)()) {
+                (0, step_probe_1.writeRegistration)((0, step_probe_1.getActiveSessionId)());
             }
-            return;
-        }
-        // File route (fallback — only when WS is NOT connected)
-        const snapshotDir = path.join(bridgePath, 'chat_snapshots');
-        if (!fs.existsSync(snapshotDir)) {
-            fs.mkdirSync(snapshotDir, { recursive: true });
-        }
-        const id = Date.now().toString();
-        const data = {
-            id,
-            project_name: projectName,
-            content: text,
-            timestamp: Date.now() / 1000,
-        };
-        const filePath = path.join(snapshotDir, `${id}.json`);
-        fs.writeFileSync(filePath, JSON.stringify(data, null, 2), 'utf-8');
-        console.log(`Gravity Bridge: chat snapshot written (${text.length} chars) → ${id}.json`);
-        logToFile(`[SNAPSHOT] written ${id}.json (${text.length} chars)`);
-        logToFile(`[SNAPSHOT] content: ${text.substring(0, 200)}`);
-        // Lazily register session → project mapping (correct because projectName is per-window)
-        if (activeSessionId) {
-            (0, step_probe_1.writeRegistration)(activeSessionId);
         }
     }
     catch (e) {
@@ -177,38 +145,17 @@ function writeChatSnapshot(text) {
 }
 function writeChatSnapshotWithFiles(text, files) {
     try {
-        // WS route (preferred) — skip file write to prevent duplicate Discord delivery
         if (wsBridge && wsBridge.isConnected()) {
             wsBridge.sendChat({
                 content: text,
                 attached_files: files,
-                conversation_id: activeSessionId,
+                conversation_id: (0, step_probe_1.getActiveSessionId)(),
                 project_name: projectName,
             });
             logToFile(`[SNAPSHOT-WS] sent with ${files.length} files (${text.length} chars)`);
-            if (activeSessionId) {
-                (0, step_probe_1.writeRegistration)(activeSessionId);
+            if ((0, step_probe_1.getActiveSessionId)()) {
+                (0, step_probe_1.writeRegistration)((0, step_probe_1.getActiveSessionId)());
             }
-            return;
-        }
-        // File route (fallback — only when WS is NOT connected)
-        const snapshotDir = path.join(bridgePath, 'chat_snapshots');
-        if (!fs.existsSync(snapshotDir)) {
-            fs.mkdirSync(snapshotDir, { recursive: true });
-        }
-        const id = Date.now().toString();
-        const data = {
-            id,
-            project_name: projectName,
-            content: text,
-            attached_files: files,
-            timestamp: Date.now() / 1000,
-        };
-        const filePath = path.join(snapshotDir, `${id}.json`);
-        fs.writeFileSync(filePath, JSON.stringify(data, null, 2), 'utf-8');
-        logToFile(`[SNAPSHOT] written ${id}.json (${text.length} chars, ${files.length} files)`);
-        if (activeSessionId) {
-            (0, step_probe_1.writeRegistration)(activeSessionId);
         }
     }
     catch (e) {
@@ -405,7 +352,6 @@ async function activate(context) {
     const config = vscode.workspace.getConfiguration('gravityBridge');
     const configPath = config.get('bridgePath');
     bridgePath = configPath || path.join(os.homedir(), '.gemini', 'antigravity', 'bridge');
-    ensureBridgeDir();
     console.log(`Gravity Bridge: bridge path: ${bridgePath}`);
     // ── WebSocket Hub Connection ──
     const hubUrl = process.env.GRAVITY_HUB_URL || config.get('hubUrl') || '';
@@ -541,6 +487,7 @@ async function activate(context) {
             get activeSessionId() { return (0, step_probe_1.getStepProbeContext)().activeSessionId; },
             get sessionStalled() { return (0, step_probe_1.getStepProbeContext)().sessionStalled; },
             get lastPendingStepIndex() { return (0, step_probe_1.getStepProbeContext)().lastPendingStepIndex; },
+            writeChatSnapshot,
         };
         const bridgePort = await (0, http_bridge_1.startHttpBridge)(httpBridgeCtx, sdk);
         let localPort = bridgePort;

extension/package-lock.json

@@ -1,82 +1,380 @@
 {
-    "name": "gravity-bridge",
-    "version": "0.5.25",
-    "lockfileVersion": 3,
-    "requires": true,
-    "packages": {
-        "": {
-            "name": "gravity-bridge",
-            "version": "0.5.25",
-            "dependencies": {
-                "ws": "^8.19.0"
-            },
-            "devDependencies": {
-                "@types/node": "^20.0.0",
-                "@types/vscode": "^1.100.0",
-                "typescript": "^5.3.0"
-            },
-            "engines": {
-                "vscode": "^1.100.0"
-            }
-        },
-        "node_modules/@types/node": {
-            "version": "20.19.37",
-            "resolved": "https://registry.npmjs.org/@types/node/-/node-20.19.37.tgz",
-            "integrity": "sha512-8kzdPJ3FsNsVIurqBs7oodNnCEVbni9yUEkaHbgptDACOPW04jimGagZ51E6+lXUwJjgnBw+hyko/lkFWCldqw==",
-            "dev": true,
-            "license": "MIT",
-            "dependencies": {
-                "undici-types": "~6.21.0"
-            }
-        },
-        "node_modules/@types/vscode": {
-            "version": "1.100.0",
-            "resolved": "https://registry.npmjs.org/@types/vscode/-/vscode-1.100.0.tgz",
-            "integrity": "sha512-4uNyvzHoraXEeCamR3+fzcBlh7Afs4Ifjs4epINyUX/jvdk0uzLnwiDY35UKDKnkCHP5Nu3dljl2H8lR6s+rQw==",
-            "dev": true,
-            "license": "MIT"
-        },
-        "node_modules/typescript": {
-            "version": "5.9.3",
-            "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
-            "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
-            "dev": true,
-            "license": "Apache-2.0",
-            "bin": {
-                "tsc": "bin/tsc",
-                "tsserver": "bin/tsserver"
-            },
-            "engines": {
-                "node": ">=14.17"
-            }
-        },
-        "node_modules/undici-types": {
-            "version": "6.21.0",
-            "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
-            "integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
-            "dev": true,
-            "license": "MIT"
-        },
-        "node_modules/ws": {
-            "version": "8.19.0",
-            "resolved": "https://registry.npmjs.org/ws/-/ws-8.19.0.tgz",
-            "integrity": "sha512-blAT2mjOEIi0ZzruJfIhb3nps74PRWTCz1IjglWEEpQl5XS/UNama6u2/rjFkDDouqr4L67ry+1aGIALViWjDg==",
-            "license": "MIT",
-            "engines": {
-                "node": ">=10.0.0"
-            },
-            "peerDependencies": {
-                "bufferutil": "^4.0.1",
-                "utf-8-validate": ">=5.0.2"
-            },
-            "peerDependenciesMeta": {
-                "bufferutil": {
-                    "optional": true
-                },
-                "utf-8-validate": {
-                    "optional": true
-                }
-            }
+  "name": "gravity-bridge",
+  "version": "0.5.34",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "gravity-bridge",
+      "version": "0.5.34",
+      "dependencies": {
+        "cheerio": "^1.2.0",
+        "ws": "^8.19.0"
+      },
+      "devDependencies": {
+        "@types/node": "^20.0.0",
+        "@types/vscode": "^1.100.0",
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+      "deprecated": "Use @exodus/bytes instead for a more spec-conformant and faster implementation",
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+      "license": "MIT",
+      "engines": {
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+      }
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+      "integrity": "sha512-blAT2mjOEIi0ZzruJfIhb3nps74PRWTCz1IjglWEEpQl5XS/UNama6u2/rjFkDDouqr4L67ry+1aGIALViWjDg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": ">=5.0.2"
+      },
+      "peerDependenciesMeta": {
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+          "optional": true
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     }
+  }
 }

extension/package.json

@@ -2,7 +2,7 @@
   "name": "gravity-bridge",
   "displayName": "Gravity Bridge",
   "description": "Discord-based unified approval system for Antigravity AI interactions.",
-  "version": "0.5.30",
+  "version": "0.5.36",
   "publisher": "variet",
   "engines": {
     "vscode": "^1.100.0"
@@ -84,6 +84,7 @@
     }
   },
   "dependencies": {
+    "cheerio": "^1.2.0",
     "ws": "^8.19.0"
   }
 }

extension/src/brain-watcher.ts

@@ -0,0 +1,96 @@
+import * as fs from 'fs';
+import * as path from 'path';
+import * as os from 'os';
+import { WSBridgeClient } from './ws-client';
+
+export interface BrainWatcherContext {
+    logToFile: (msg: string) => void;
+    wsBridge: WSBridgeClient;
+    projectName: string;
+}
+
+export class BrainWatcher {
+    private brainDir: string;
+    private ctx: BrainWatcherContext;
+    private currentSessionId: string = '';
+    private watcher: fs.FSWatcher | null = null;
+    private lastEventTimes: Map<string, number> = new Map();
+
+    constructor(ctx: BrainWatcherContext) {
+        this.ctx = ctx;
+        // The bridgePath is ~/.gemini/antigravity/bridge, so brain is sibling
+        this.brainDir = path.join(os.homedir(), '.gemini', 'antigravity', 'brain');
+    }
+
+    public updateSession(sessionId: string) {
+        if (!sessionId || this.currentSessionId === sessionId) {
+            return;
+        }
+        this.currentSessionId = sessionId;
+        this.startWatching(sessionId);
+    }
+
+    private startWatching(sessionId: string) {
+        this.stop();
+
+        const sessionDir = path.join(this.brainDir, sessionId);
+        if (!fs.existsSync(sessionDir)) {
+            // It might not be created yet, poll gently
+            setTimeout(() => this.startWatching(sessionId), 2000);
+            return;
+        }
+
+        try {
+            this.watcher = fs.watch(sessionDir, { persistent: false }, (eventType, filename) => {
+                if (!filename || !filename.endsWith('.md')) return;
+
+                // Dedup rapid events
+                const now = Date.now();
+                const last = this.lastEventTimes.get(filename) || 0;
+                if (now - last < 500) return; // 500ms debounce
+                this.lastEventTimes.set(filename, now);
+
+                this.handleFileChange(sessionDir, filename, eventType);
+            });
+            this.ctx.logToFile(`[BRAIN-WATCHER] Started watching session: ${sessionId.substring(0, 8)}`);
+        } catch (e: any) {
+            this.ctx.logToFile(`[BRAIN-WATCHER] Failed to watch ${sessionId}: ${e.message}`);
+        }
+    }
+
+    private handleFileChange(dir: string, filename: string, rawEventType: string) {
+        const filePath = path.join(dir, filename);
+        let content = '';
+        let eventType = 'file_changed';
+
+        try {
+            if (fs.existsSync(filePath)) {
+                content = fs.readFileSync(filePath, 'utf-8');
+            } else {
+                eventType = 'file_deleted';
+            }
+        } catch (e) {
+            // File might be locked or deleted during read
+            return;
+        }
+
+        if (this.ctx.wsBridge && this.ctx.wsBridge.isConnected()) {
+            this.ctx.wsBridge.sendBrainEvent({
+                event_type: eventType,
+                conversation_id: this.currentSessionId,
+                file_name: filename,
+                content: content,
+                timestamp: Date.now() / 1000,
+                project_name: this.ctx.projectName,
+            });
+            this.ctx.logToFile(`[BRAIN-WATCHER] Sent ${eventType} for ${filename}`);
+        }
+    }
+
+    public stop() {
+        if (this.watcher) {
+            this.watcher.close();
+            this.watcher = null;
+        }
+    }
+}

extension/src/extension.ts

@@ -86,13 +86,7 @@ function detectProjectName(): string {
 
 // ─── Bridge File I/O ───
 
-function ensureBridgeDir() {
-    const dirs = ['', 'response', 'commands', 'chat_snapshots'];
-    for (const d of dirs) {
-        const p = path.join(bridgePath, d);
-        if (!fs.existsSync(p)) { fs.mkdirSync(p, { recursive: true }); }
-    }
-}
+
 
 // Module-level activeSessionId so writeChatSnapshot can register sessions lazily
 let activeSessionId = '';
@@ -102,34 +96,15 @@ const recentDiscordSentTexts: Map<string, number> = new Map();
 
 function writeChatSnapshot(text: string) {
     try {
-        // WS route (preferred) — skip file write to prevent duplicate Discord delivery
         if (wsBridge && wsBridge.isConnected()) {
             wsBridge.sendChat({
                 content: text,
-                conversation_id: activeSessionId,
+                conversation_id: getStepProbeSessionId(),
                 project_name: projectName,
             });
             logToFile(`[SNAPSHOT-WS] sent (${text.length} chars)`);
-            if (activeSessionId) { writeRegistration(activeSessionId); }
-            return;
+            if (getStepProbeSessionId()) { writeRegistration(getStepProbeSessionId()); }
         }
-        // File route (fallback — only when WS is NOT connected)
-        const snapshotDir = path.join(bridgePath, 'chat_snapshots');
-        if (!fs.existsSync(snapshotDir)) { fs.mkdirSync(snapshotDir, { recursive: true }); }
-        const id = Date.now().toString();
-        const data = {
-            id,
-            project_name: projectName,
-            content: text,
-            timestamp: Date.now() / 1000,
-        };
-        const filePath = path.join(snapshotDir, `${id}.json`);
-        fs.writeFileSync(filePath, JSON.stringify(data, null, 2), 'utf-8');
-        console.log(`Gravity Bridge: chat snapshot written (${text.length} chars) → ${id}.json`);
-        logToFile(`[SNAPSHOT] written ${id}.json (${text.length} chars)`);
-        logToFile(`[SNAPSHOT] content: ${text.substring(0, 200)}`);
-        // Lazily register session → project mapping (correct because projectName is per-window)
-        if (activeSessionId) { writeRegistration(activeSessionId); }
     } catch (e: any) {
         console.log(`Gravity Bridge: snapshot write error: ${e.message}`);
     }
@@ -137,33 +112,16 @@ function writeChatSnapshot(text: string) {
 
 function writeChatSnapshotWithFiles(text: string, files: Array<{ name: string, content: string }>) {
     try {
-        // WS route (preferred) — skip file write to prevent duplicate Discord delivery
         if (wsBridge && wsBridge.isConnected()) {
             wsBridge.sendChat({
                 content: text,
                 attached_files: files,
-                conversation_id: activeSessionId,
+                conversation_id: getStepProbeSessionId(),
                 project_name: projectName,
             });
             logToFile(`[SNAPSHOT-WS] sent with ${files.length} files (${text.length} chars)`);
-            if (activeSessionId) { writeRegistration(activeSessionId); }
-            return;
+            if (getStepProbeSessionId()) { writeRegistration(getStepProbeSessionId()); }
         }
-        // File route (fallback — only when WS is NOT connected)
-        const snapshotDir = path.join(bridgePath, 'chat_snapshots');
-        if (!fs.existsSync(snapshotDir)) { fs.mkdirSync(snapshotDir, { recursive: true }); }
-        const id = Date.now().toString();
-        const data = {
-            id,
-            project_name: projectName,
-            content: text,
-            attached_files: files,
-            timestamp: Date.now() / 1000,
-        };
-        const filePath = path.join(snapshotDir, `${id}.json`);
-        fs.writeFileSync(filePath, JSON.stringify(data, null, 2), 'utf-8');
-        logToFile(`[SNAPSHOT] written ${id}.json (${text.length} chars, ${files.length} files)`);
-        if (activeSessionId) { writeRegistration(activeSessionId); }
     } catch (e: any) {
         console.log(`Gravity Bridge: snapshot+files write error: ${e.message}`);
     }
@@ -383,7 +341,7 @@ export async function activate(context: vscode.ExtensionContext) {
     const config = vscode.workspace.getConfiguration('gravityBridge');
     const configPath = config.get<string>('bridgePath');
     bridgePath = configPath || path.join(os.homedir(), '.gemini', 'antigravity', 'bridge');
-    ensureBridgeDir();
+
     console.log(`Gravity Bridge: bridge path: ${bridgePath}`);
 
     // ── WebSocket Hub Connection ──
@@ -527,6 +485,7 @@ export async function activate(context: vscode.ExtensionContext) {
             get activeSessionId() { return getStepProbeContext().activeSessionId; },
             get sessionStalled() { return getStepProbeContext().sessionStalled; },
             get lastPendingStepIndex() { return getStepProbeContext().lastPendingStepIndex; },
+            writeChatSnapshot,
         };
         const bridgePort = await startHttpBridge(httpBridgeCtx, sdk);
         let localPort = bridgePort;

extension/src/http-bridge.ts

@@ -13,6 +13,8 @@ import * as fs from 'fs';
 import * as path from 'path';
 import { WSBridgeClient } from './ws-client';
 
+let lastFilePermissionTime = 0;
+
 // ─── Context interface (shared state from extension.ts) ───
 
 export interface HttpBridgeContext {
@@ -127,7 +129,7 @@ export function startHttpBridge(ctx: HttpBridgeContext, sdk: any): Promise<numbe
                             const fs = require('fs');
                             const path = require('path');
                             fs.writeFileSync(path.join(ctx.bridgePath, 'dump_html.json'), dumpBody, 'utf-8');
-                        } catch(e) {}
+                        } catch (e) { }
                         res.writeHead(200); res.end('ok');
                     });
                     return;
@@ -140,9 +142,9 @@ export function startHttpBridge(ctx: HttpBridgeContext, sdk: any): Promise<numbe
                         try {
                             const params = JSON.parse(rpcBody);
                             const result = await sdk.ls.rawRPC(params.method, params.args || {});
-                            res.writeHead(200, {'Content-Type': 'application/json'});
+                            res.writeHead(200, { 'Content-Type': 'application/json' });
                             res.end(typeof result === 'string' ? result : JSON.stringify(result));
-                        } catch(e: any) {
+                        } catch (e: any) {
                             res.writeHead(500); res.end(e.message);
                         }
                     });
@@ -246,9 +248,6 @@ function _handlePending(req: any, res: any, ctx: HttpBridgeContext) {
             }
 
             const rid = data.request_id || Date.now().toString();
-            // Write pending file for Discord bot
-            const pendingDir = path.join(ctx.bridgePath, 'pending');
-            if (!fs.existsSync(pendingDir)) fs.mkdirSync(pendingDir, { recursive: true });
             const pending: Record<string, any> = {
                 ...data,
                 request_id: rid,
@@ -265,22 +264,13 @@ function _handlePending(req: any, res: any, ctx: HttpBridgeContext) {
             if (cmdLower.includes('allow') && !pending.buttons) {
                 // Dedup: skip if another file_permission pending was created within 10s
                 const nowMs = Date.now();
-                try {
-                    const existingFiles = fs.readdirSync(pendingDir).filter((f: string) => f.endsWith('.json'));
-                    for (const ef of existingFiles) {
-                        const existing = JSON.parse(fs.readFileSync(path.join(pendingDir, ef), 'utf-8'));
-                        if (existing.step_type === 'file_permission' && existing.status === 'pending'
-                            && existing.project_name === ctx.projectName) {
-                            const age = nowMs - (existing.timestamp * 1000);
-                            if (age < 10_000 && age >= 0) {
-                                ctx.logToFile(`[HTTP] filtered duplicate file_permission (${age}ms old): ${ef}`);
-                                res.writeHead(200, { 'Content-Type': 'application/json' });
-                                res.end(JSON.stringify({ ok: false, filtered: true, reason: 'dedup_file_permission' }));
-                                return;
-                            }
-                        }
-                    }
-                } catch { }
+                if (nowMs - lastFilePermissionTime < 10000) {
+                    ctx.logToFile(`[HTTP] filtered duplicate file_permission (${nowMs - lastFilePermissionTime}ms old)`);
+                    res.writeHead(200, { 'Content-Type': 'application/json' });
+                    res.end(JSON.stringify({ ok: false, filtered: true, reason: 'dedup_file_permission' }));
+                    return;
+                }
+                lastFilePermissionTime = nowMs;
 
                 pending.buttons = [
                     { text: 'Allow Once', index: 0 },
@@ -292,8 +282,7 @@ function _handlePending(req: any, res: any, ctx: HttpBridgeContext) {
                 const rawDesc = (data.description || data.command || '').replace(/Deny|Allow Once|Allow This Conversation/gi, '').trim();
                 pending.command = `파일 접근 권한${rawDesc ? ': ' + rawDesc : ''}`;
             }
-            fs.writeFileSync(path.join(pendingDir, `${rid}.json`), JSON.stringify(pending, null, 2));
-            // WS dual-write
+            // WS dispatch
             if (ctx.wsBridge && ctx.wsBridge.isConnected()) {
                 ctx.wsBridge.sendPending({
                     request_id: rid,

extension/src/observer-script.ts

@@ -1,6 +1,6 @@
 export function generateApprovalObserverScript(_port: number): string {
   return `
-// ── Gravity Bridge v4: React Tailwind UI Observer ──
+// ── Gravity Bridge v5: Context-First DOM Extraction ──
 (function(){
   'use strict';
   var BASE='',_obs=false,_sent={},_ready=false;
@@ -9,7 +9,7 @@ export function generateApprovalObserverScript(_port: number): string {
   var CLEANUP_MS=300000;
   
   function log(m){console.log('[GB Observer] '+m);}
-  log('v4 Script loaded — deep Tailwind DOM traversal enabled');
+  log('v5 Script loaded — Context-First Tailored Extraction');
 
   // React-Compatible Synthetic Clicker
   function dispatchReactClick(el){
@@ -21,19 +21,10 @@ export function generateApprovalObserverScript(_port: number): string {
       el.dispatchEvent(new MouseEvent('mouseup', {bubbles:true, cancelable:true, view:window, composed:true}));
       el.dispatchEvent(new MouseEvent('click', {bubbles:true, cancelable:true, view:window, composed:true}));
     } catch(e) {
-      el.click(); // fallback
+      el.click();
     }
   }
 
-  // ── Find common container for the step ──
-  function findButtonContainer(btn){
-    return btn.closest('.p-1')
-        || btn.closest('.bg-agent-convo-background')
-        || btn.closest('[class*="border-gray-500/10"]')
-        || btn.closest('.monaco-list-row')
-        || btn.parentElement;
-  }
-
   function cleanButtonText(btn) {
     if (!btn) return '';
     var clone = btn.cloneNode(true);
@@ -43,10 +34,9 @@ export function generateApprovalObserverScript(_port: number): string {
     }
     var tr = clone.querySelector('.truncate');
     var txt = (tr ? tr.textContent : clone.textContent) || '';
-    return txt.trim().replace(/^[\s\u200B-\u200D\uFEFF\u00A0]+/, '').replace(/(Alt|Ctrl|Shift|Meta)\\+.*/i,'').trim();
+    return txt.trim().replace(/^[\s\u200B-\u200D\uFEFF\u00A0]+/, '').replace(/(Alt|Ctrl|Shift|Meta)\\\\+.*/i,'').trim();
   }
 
-  // ── Stable button fingerprint ──
   function btnId(b,type){
     var txt = cleanButtonText(b);
     var parent = b.parentElement;
@@ -58,104 +48,78 @@ export function generateApprovalObserverScript(_port: number): string {
     return type+'|'+txt+'|'+idx;
   }
 
-  // ── Context extraction — target BOTH chat history and command payload ──
   function extractCommandContext(b){
-    var container = findButtonContainer(b);
+    var container = b.closest('.p-1') || b.parentElement.parentElement;
     if (!container) return "";
-
     var titleSpans = container.querySelectorAll('span[title^="command("]');
     if (titleSpans && titleSpans.length > 0) {
         var t = titleSpans[0].getAttribute('title');
         if (t && t.length > 5) return t.substring(0, 800);
     }
-    
     var preEls = container.querySelectorAll('pre');
     if (preEls && preEls.length > 0) {
         var t2 = (preEls[preEls.length-1].textContent || '').trim();
         if (t2.length > 2) return t2.substring(0, 800);
     }
-    
-    var codeText = '';
-    var codes = container.querySelectorAll('code, [class*="command"]');
-    for(var i=0; i<codes.length; i++) {
-        codeText += (codes[i].textContent || '').trim() + ' ';
-    }
-    if (codeText.length > 2) return codeText.trim().substring(0, 800);
-
     var fallback = (container.textContent || '').replace(cleanButtonText(b), '').trim();
     return fallback.substring(0, 500);
   }
 
+  function extractChatContextFromNode(botTurn) {
+    if (!botTurn) return '';
+    
+    var res = '';
+    // Use innerText if available on the markdown container (preserves spacing perfectly)
+    var md = botTurn.querySelector('.markdown-body') || botTurn.querySelector('.prose');
+    if (md && md.innerText && md.innerText.trim().length > 10) {
+      res = md.innerText.trim();
+      return res.substring(0, 3500);
+    }
+    
+    var toolContainer = botTurn.querySelector('.bg-agent-convo-background') || botTurn.querySelector('.bg-ide-background-color');
+    var textParts = [];
+    function walk(node) {
+      if (toolContainer && node === toolContainer) return; 
+      if (node.id === 'antigravity.agentSidePanelInputBox') return;
+      if (node.nodeType === 1) {
+         var tag = node.tagName.toUpperCase();
+         if (tag==='BUTTON' || tag==='SVG' || tag==='STYLE' || tag==='SCRIPT') return;
+         // Skip tool action blocks aggressively if they masquerade as normal divs
+         if (node !== botTurn && node.classList && (node.classList.contains('bg-ide-background-color') || node.classList.contains('bg-agent-convo-background'))) return;
+      }
+      if (node.nodeType === 3) {
+         var val = node.nodeValue;
+         if (val && val.trim()) textParts.push(val.trim());
+      } else {
+         if (node.childNodes && node.childNodes.length > 0) {
+             for(var i=0; i<node.childNodes.length; i++) {
+               walk(node.childNodes[i]);
+             }
+         }
+      }
+      if (node.nodeType === 1) {
+        var tg = node.tagName.toUpperCase();
+        if (tg==='P' || tg==='DIV' || tg==='BR' || tg==='LI' || tg==='PRE') textParts.push('\\n');
+      }
+    }
+    walk(botTurn);
+    res = textParts.join(' ').replace(/ \\n /g, '\\n').replace(/\\n+/g, '\\n').trim();
+    return res.substring(0, 3500);
+  }
+
   function extractChatContext(b) {
     try {
-      var botTurn = b.closest('.bg-agent-convo-background') || b.closest('.text-ide-message-block-bot-color');
+      var botTurn = b.closest('.text-ide-message-block-bot-color') || b.closest('.bg-agent-convo-background');
       if (!botTurn) {
-         var container = findButtonContainer(b);
+         var container = b.closest('.p-1') || b.parentElement;
          botTurn = container ? container.parentElement : null;
       }
-      if (!botTurn) return '';
-
-      var toolContainer = findButtonContainer(b) || b;
-      var textParts = [];
-
-      function walk(node) {
-        if (node === toolContainer) return true; // Stop traversal at the tool box
-        if (node.nodeType === 1) {
-           var tag = node.tagName.toUpperCase();
-           if (tag==='BUTTON' || tag==='SVG' || tag==='STYLE' || tag==='SCRIPT') return false;
-        }
-        if (node.nodeType === 3) {
-           var val = node.nodeValue;
-           if (val && val.trim()) textParts.push(val.trim());
-        } else {
-           for(var i=0; i<node.childNodes.length; i++) {
-             if (walk(node.childNodes[i])) return true;
-           }
-        }
-        if (node.nodeType === 1) {
-          var tg = node.tagName.toUpperCase();
-          if (tg==='P' || tg==='DIV' || tg==='BR' || tg==='LI' || tg==='PRE') textParts.push('\\n');
-        }
-        return false;
-      }
-
-      walk(botTurn);
-      var result = textParts.join(' ').replace(/ \\n /g, '\\n').replace(/\\n+/g, '\\n').trim();
-      return result.substring(0, 1500);
+      return extractChatContextFromNode(botTurn);
     } catch(e) {
       return '';
     }
   }
 
-  function extractChatContextFromNode(botTurn) {
-      if (!botTurn) return '';
-      var toolContainer = botTurn.querySelector('.bg-ide-background-color'); // Stop at tool blocks
-      var textParts = [];
-      function walk(node) {
-        if (toolContainer && node === toolContainer) return true; 
-        if (node.nodeType === 1) {
-           var tag = node.tagName.toUpperCase();
-           if (tag==='BUTTON' || tag==='SVG' || tag==='STYLE' || tag==='SCRIPT') return false;
-        }
-        if (node.nodeType === 3) {
-           var val = node.nodeValue;
-           if (val && val.trim()) textParts.push(val.trim());
-        } else {
-           for(var i=0; i<node.childNodes.length; i++) {
-             if (walk(node.childNodes[i])) return true;
-           }
-        }
-        if (node.nodeType === 1) {
-          var tg = node.tagName.toUpperCase();
-          if (tg==='P' || tg==='DIV' || tg==='BR' || tg==='LI' || tg==='PRE') textParts.push('\\n');
-        }
-        return false;
-      }
-      walk(botTurn);
-      var result = textParts.join(' ').replace(/ \\n /g, '\\n').replace(/\\n+/g, '\\n').trim();
-      return result.substring(0, 3500);
-  }
-
   function extractContext(b) {
     var cmd = extractCommandContext(b);
     var chat = extractChatContext(b);
@@ -166,15 +130,21 @@ export function generateApprovalObserverScript(_port: number): string {
     return combined.trim();
   }
 
-  // ── Action Buttons Patterns (EN / KO) ──
-  var PATS = [
-    { type: 'command', re: /^(?:Always\\s*)?(?:Run\\b|결행사양\\s*항상|결행)/i },
-    { type: 'permission', re: /^(?:Always\\s*)?(?:Allow\\b|허용)/i },
-    { type: 'permission', re: /^(?:Always\\s*)?(?:Approve\\b|승인)/i },
-    { type: 'diff_review', re: /^(?:Always\\s*)?(?:Accept\\b|수락|반영)/i },
-  ];
-  var ALL_ACTION_RE=[/^(?:Always\\s*)?(?:Run\\b|결행)/i,/^(?:Always\\s*)?(?:Accept\\b|수락|반영)/i,/^(?:Reject\\b|거절|거부)/i,/^(?:Always\\s*)?(?:Allow\\b|허용)/i,/^(?:Deny\\b|차단)/i,/^(?:Always\\s*)?(?:Approve\\b|승인)/i,/^(?:Cancel\\b|취소)/i,/^Retry\\b/i,/^(?:Dismiss\\b|무시)/i,/^(?:Stop\\b|정지)/i,/^Decline\\b/i];
-  var REJECT_RE=[/^(?:Reject\\b|거절|거부)/i,/^(?:Cancel\\b|취소)/i,/^(?:Deny\\b|차단)/i,/^(?:Stop\\b|정지)/i,/^Decline\\b/i,/^(?:Dismiss\\b|무시)/i];
+  var ACTION_WORDS = ['Allow', 'Run', 'Approve', 'Accept', '결행', '수락', '반영', '허용', '승인'];
+  var REJECT_WORDS = ['Reject', 'Cancel', 'Deny', 'Stop', 'Decline', 'Dismiss', '거절', '거부', '취소', '차단', '정지', '무시'];
+
+  function isActionBtn(txt) {
+    for(var i=0; i<ACTION_WORDS.length; i++) {
+      if(txt.indexOf(ACTION_WORDS[i]) !== -1) return true;
+    }
+    return false;
+  }
+  function isRejectBtn(txt) {
+    for(var i=0; i<REJECT_WORDS.length; i++) {
+      if(txt.indexOf(REJECT_WORDS[i]) !== -1) return true;
+    }
+    return false;
+  }
 
   function collectSiblingButtons(container,triggerBtn){
     if(!container)return [];
@@ -183,110 +153,86 @@ export function generateApprovalObserverScript(_port: number): string {
     for(var i=0;i<siblings.length;i++){
       var sb=siblings[i];
       if(sb.disabled||sb.hidden||(!sb.offsetParent&&sb.style.display!=='fixed'))continue;
-      
       var stxt = cleanButtonText(sb);
-      if(stxt.length <= 1) continue; // Ignore icon buttons
-
-      var isAction=false;
-      for(var a=0;a<ALL_ACTION_RE.length;a++){
-        if(ALL_ACTION_RE[a].test(stxt)){isAction=true;break;}
-      }
-      if(!isAction)continue;
+      if(stxt.length <= 1) continue;
+      if(!isActionBtn(stxt) && !isRejectBtn(stxt)) continue;
       result.push({btn:sb,text:stxt,isPrimary:(sb===triggerBtn)});
     }
     return result;
   }
 
   var HARDCODED_PORT=${_port};
-  
   function tryPingAsync(port){
     return fetch('http://127.0.0.1:'+port+'/ping?t='+Date.now(),{signal:AbortSignal.timeout(2000)})
-      .then(function(r){return r.text();})
-      .then(function(t){return t==='pong';})
-      .catch(function(){return false;});
+      .then(function(r){return r.text();}).then(function(t){return t==='pong';}).catch(function(){return false;});
   }
 
   function discoverPort(cb){
-    log('Waiting for Gravity Bridge status...');
     var attempts=0;
     var timer=setInterval(function(){
       attempts++;
       var items = document.querySelectorAll('[aria-label^="Gravity Bridge Control"], [title^="Gravity Bridge Control"]');
       if (items.length > 0) {
         var text = items[0].getAttribute('aria-label') || items[0].getAttribute('title') || '';
-        var m = text.match(/port:(\d+)/);
+        var m = text.match(/port:(\\d+)/);
         if (m && m[1]) {
-          var domPort = parseInt(m[1], 10);
           clearInterval(timer);
-          tryPingAsync(domPort).then(function(ok){
-            if(ok) cb(domPort); else cb(HARDCODED_PORT);
-          });
+          tryPingAsync(parseInt(m[1], 10)).then(function(ok){ cb(ok ? parseInt(m[1],10) : HARDCODED_PORT); });
           return;
         }
       }
-      // If we are in the webview, the status bar is invisible. Skip quickly.
       if(attempts>1){
         clearInterval(timer);
-        tryPingAsync(HARDCODED_PORT).then(function(ok){ cb(HARDCODED_PORT); }); // Assume HARDCODED_PORT works!
+        tryPingAsync(HARDCODED_PORT).then(function(){ cb(HARDCODED_PORT); });
       }
-    },500); // Wait 500ms * 2 = 1 second total
+    },500);
   }
 
   discoverPort(function(port){
     BASE='http://127.0.0.1:'+port;
-    fetch(BASE+'/ping').then(function(r){return r.text();}).then(function(t){
-      if(t==='pong'){_ready=true;startObserver();}
-    }).catch(function(e){});
+    _ready=true;
+    startObserver();
   });
 
-  var _chatSnapshots = [];
-  var _firstChatScan = true;
+  var _lastText = "";
+  var _lastTextTime = 0;
+  var _lastTextSent = false;
+
   function scanChatBodies() {
     if(!_ready)return;
     var botTurns = document.querySelectorAll('.text-ide-message-block-bot-color');
-    for (var i = 0; i < botTurns.length; i++) {
-        var turn = botTurns[i];
-        if (turn.dataset.agChatScraped === "true" || turn.dataset.agChatScraped === "pending") continue;
+    if (botTurns.length === 0) return;
     
-        if (_firstChatScan) {
-            turn.dataset.agChatScraped = "true";
-            continue;
-        }
+    var lastTurn = botTurns[botTurns.length - 1];
+    if (lastTurn.dataset.agChatScraped === "true" || lastTurn.dataset.agChatScraped === "pending") return;
 
-        var currentText = turn.textContent || '';
-        var found = -1;
-        for (var j = 0; j < _chatSnapshots.length; j++) {
-            if (_chatSnapshots[j].node === turn) { found = j; break; }
-        }
+    var currentText = lastTurn.textContent || '';
+    if (currentText.length < 5) return;
 
-        if (found === -1) {
-            _chatSnapshots.push({ node: turn, text: currentText, lastChanged: Date.now() });
-        } else {
-            if (_chatSnapshots[found].text !== currentText) {
-                _chatSnapshots[found].text = currentText;
-                _chatSnapshots[found].lastChanged = Date.now();
+    if (_lastText !== currentText) {
+        _lastText = currentText;
+        _lastTextTime = Date.now();
+        _lastTextSent = false;
+    } else if (!_lastTextSent) {
+        if (Date.now() - _lastTextTime > 3000) {
+            _lastTextSent = true;
+            lastTurn.dataset.agChatScraped = "pending";
+            var finalTxt = extractChatContextFromNode(lastTurn);
+            if (finalTxt && finalTxt.length > 5 && finalTxt !== "Review Changes") {
+                fetch(BASE+'/chat', {
+                    method: 'POST',
+                    headers: { 'Content-Type': 'application/json' },
+                    body: JSON.stringify({ text: finalTxt })
+                }).then(function(){
+                    lastTurn.dataset.agChatScraped = "true";
+                }).catch(function(){
+                    lastTurn.dataset.agChatScraped = "false";
+                });
             } else {
-                if (Date.now() - _chatSnapshots[found].lastChanged > 3500) {
-                    turn.dataset.agChatScraped = "pending"; // prevent re-entry
-                    var finalTxt = extractChatContextFromNode(turn);
-                    if (finalTxt && finalTxt.length > 5) {
-                        fetch(BASE+'/chat', {
-                            method: 'POST',
-                            headers: { 'Content-Type': 'application/json' },
-                            body: JSON.stringify({ text: finalTxt })
-                        }).then(function(){
-                            turn.dataset.agChatScraped = "true";
-                        }).catch(function(){
-                            turn.dataset.agChatScraped = "false"; // retry
-                        });
-                    } else {
-                        turn.dataset.agChatScraped = "true";
-                    }
-                }
+                lastTurn.dataset.agChatScraped = "true";
             }
         }
     }
-    _firstChatScan = false;
   }
 
   function scan(){
@@ -301,26 +247,17 @@ export function generateApprovalObserverScript(_port: number): string {
       if(b.disabled||b.hidden||(!b.offsetParent&&b.style.display!=='fixed'))continue;
 
       var txt=cleanButtonText(b);
-      console.log("[JSDOM] Button scan:", txt);
-      if(txt.length <= 1) continue; // Icon
+      if(txt.length <= 1) continue;
 
-      var matchedType=null;
-      for(var p=0;p<PATS.length;p++){
-        if(PATS[p].re.test(txt)){
-          if (b.closest('.codelens-decoration') && PATS[p].type !== 'diff_review' && PATS[p].type !== 'permission') {
-            continue;
-          }
-          matchedType=PATS[p].type;
-          break;
-        }
+      if(!isActionBtn(txt)) continue;
+      // Skip inline code lens buttons unless they actually match the pattern properly
+      if (b.closest('.codelens-decoration') && !txt.includes('Accept') && !txt.includes('수락') && !txt.includes('반영')) {
+          continue;
       }
-      if(!matchedType){
-        console.log("[JSDOM] NOT MATCHED:", txt);
-        continue;
-      }
-      var container=findButtonContainer(b);
+
+      var matchedType = txt.includes('Accept') ? 'diff_review' : (txt.includes('Run') ? 'command' : 'permission');
+      var container=b.closest('.p-1') || b.parentElement.parentElement;
       var groupKey=matchedType+'|'+btnId(b,matchedType);
-      console.log("[JSDOM] MATCHED:", matchedType, "KEY:", groupKey, "SENT:", !!_sent[groupKey]);
       if(_sent[groupKey])continue;
 
       var siblings=collectSiblingButtons(container,b);
@@ -338,7 +275,6 @@ export function generateApprovalObserverScript(_port: number): string {
       }
 
       var desc=extractContext(b);
-      
       var is_dom_dummy = false;
       if (!desc || desc.trim().length <= 2) {
           desc = "MISSING_DESCRIPTION_FROM_DOM_FALLBACK_TO_STEP_PROBE";
@@ -417,17 +353,15 @@ export function generateApprovalObserverScript(_port: number): string {
   }
 
   function clickRejectButton(approveBtn){
-    var container=findButtonContainer(approveBtn);
+    var container=approveBtn.closest('.p-1') || approveBtn.parentElement.parentElement;
     if(!container)return;
     var siblings=container.querySelectorAll('button');
     for(var i=0;i<siblings.length;i++){
       var t=cleanButtonText(siblings[i]);
-      for(var r=0;r<REJECT_RE.length;r++){
-        if(REJECT_RE[r].test(t)){
-          log('Clicking reject: '+t);
-          dispatchReactClick(siblings[i]);
-          return;
-        }
+      if(isRejectBtn(t)){
+        log('Clicking reject: '+t);
+        dispatchReactClick(siblings[i]);
+        return;
       }
     }
   }
@@ -476,22 +410,17 @@ export function generateApprovalObserverScript(_port: number): string {
       if(_ready&&BASE){
       fetch(BASE+'/trigger-click?t='+Date.now()).then(function(r){return r.json();}).then(function(d){
         if(!d.action)return;
-        var approveRe=[/^(?:Always\\\\s*)?(?:Run\\\\b|결행)/i,/^(?:Always\\\\s*)?(?:Accept\\\\b|수락)/i,/^(?:Always\\\\s*)?(?:Accept all\\\\b|모두 수락)/i,/^(?:Always\\\\s*)?(?:Allow\\\\b|허용)/i,/^(?:Always\\\\s*)?(?:Approve\\\\b|승인)/i];
-        var rejectRe=[/^(?:Reject\\\\b|거절|거부)/i,/^(?:Cancel\\\\b|취소)/i,/^(?:Deny\\\\b|차단)/i,/^(?:Stop\\\\b|정지)/i,/^Decline\\\\b/i,/^(?:Dismiss\\\\b|무시)/i];
-        var patterns=(d.action==='approve')?approveRe:rejectRe;
-        
+        var isApprove = (d.action==='approve');
         var btns = document.querySelectorAll('button');
         for(var i=0;i<btns.length;i++){
            var bx = btns[i];
            if(bx.disabled||bx.hidden||(!bx.offsetParent&&bx.style.display!=='fixed'))continue;
            var t = cleanButtonText(bx);
            if(t.length <= 1) continue;
-           for(var pi=0;pi<patterns.length;pi++){
-             if(patterns[pi].test(t)){
-                log('Fallback TRIGGER-CLICK on "' + t + '"');
-                dispatchReactClick(bx);
-                return;
-             }
+           if (isApprove ? isActionBtn(t) : isRejectBtn(t)) {
+              log('Fallback TRIGGER-CLICK on "' + t + '"');
+              dispatchReactClick(bx);
+              return;
            }
         }
       }).catch(function(){});

extension/src/step-probe.ts

@@ -9,6 +9,7 @@ import * as path from 'path';
 import { WSBridgeClient } from './ws-client';
 import { extractPlannerText, extractToolCommand, extractToolDescription } from './step-utils';
 import { initApprovalHandler, setupResponseWatcher } from './approval-handler';
+import { BrainWatcher } from './brain-watcher';
 
 // Re-export from approval-handler for backward compatibility with extension.ts imports
 export { handleDiffReviewResponse, tryApprovalStrategies } from './approval-handler';
@@ -35,6 +36,7 @@ export interface BridgeContext {
 
 let ctx: BridgeContext;
 let responseWatcher: fs.FSWatcher | null = null;
+let brainWatcher: BrainWatcher | null = null;
 let activeTrajectoryId = '';
 const recentPendingSteps = new Map<string, number>();
 const PENDING_MEMORY_TTL_MS = 60_000;
@@ -276,15 +278,16 @@ function setupMonitor() {
                             } catch (e: any) {
                                 if (pollCount <= 30) ctx.logToFile(`[POLL] Fallback 2 error for sid=${sid}: ${e.message}`);
                                 // If trajectory explicitly does not exist, it might be an Antigravity or non-Cascade session directory.
-                                if (e.message?.includes('trajectory not found')) {
-                                    continue;
-                                }
-                                // FIXED: known-issues "AI Response Missing for New Sessions" -> Force register to prevent session loss on proto/UTF-8 parse errors
+                                // We MUST register it so activeSessionId tracks it properly.
+                                // To prevent old ghost sessions from hijacking, we only mark it RUNNING if it was recently modified.
+                                const ageMs = Date.now() - brainDirs[i].time;
+                                const isFresh = ageMs < 120_000; // updated within 2 mins
+                                
                                 allTraj.trajectorySummaries[sid] = {
-                                    status: 'CASCADE_RUN_STATUS_RUNNING',
+                                    status: isFresh ? 'CASCADE_RUN_STATUS_RUNNING' : 'CASCADE_RUN_STATUS_IDLE',
                                     stepCount: 1, // Assume progressing to allow loop delta>0 trigger
                                     lastModifiedTime: new Date(brainDirs[i].time).toISOString(),
-                                    summary: 'Discovered via brain/ scan (Fallback Error)',
+                                    summary: 'Discovered via brain/ scan (Antigravity Native)',
                                     trajectoryMetadata: { workspaces: [{ workspaceFolderAbsoluteUri: ctx.workspaceUri.replace(/\\/g, '/') }] }
                                 };
                             }
@@ -381,6 +384,9 @@ function setupMonitor() {
             // Session changed?
             if (bestSessionId !== ctx.activeSessionId) {
                 ctx.activeSessionId = bestSessionId;
+                if (brainWatcher) {
+                    brainWatcher.updateSession(bestSessionId);
+                }
                 activeTrajectoryId = (bestSession as any).trajectoryId || '';
                 activeSessionTitle = currentTitle;
                 lastKnownStepCount = currentCount;
@@ -1261,6 +1267,13 @@ export function writePendingApproval(data: { conversation_id: string; command: s
  */
 export function initStepProbe(context: BridgeContext) {
     ctx = context;
+    if (ctx.wsBridge) {
+        brainWatcher = new BrainWatcher({
+            logToFile: ctx.logToFile,
+            wsBridge: ctx.wsBridge,
+            projectName: ctx.projectName
+        });
+    }
     initApprovalHandler(context, () => activeTrajectoryId);
     setupMonitor();
     setupResponseWatcher();

main.py

@@ -10,7 +10,6 @@ import os
 import sys
 
 from config import Config
-from watcher import BrainWatcher
 from bot import GravityBot
 
 # Logging setup (UTF-8 forced for Windows cp949 compatibility)
@@ -51,45 +50,32 @@ async def main():
     # Get the running loop
     loop = asyncio.get_running_loop()
 
-    # ── Local / Gateway mode ──
-
     # Create components
-    watcher = None
-    if Config.BOT_MODE != 'gateway':
-        watcher = BrainWatcher(event_queue, loop)
     bot = GravityBot(event_queue)
 
     try:
-        # Start watcher (local mode only — gateway receives data via HTTP)
-        if watcher:
-            watcher.start()
-            logger.info(f"Watcher started, {len(watcher.known_sessions)} existing sessions")
-        else:
-            logger.info("Gateway mode — watcher disabled (data via HTTP API)")
+        # Start Gateway HTTP API + WebSocket Hub
+        from gateway import GatewayAPI
+        from hub import WSHub
+        from auth import TokenManager
 
-        # Start Gateway HTTP API + WebSocket Hub (gateway mode)
-        if Config.BOT_MODE == 'gateway':
-            from gateway import GatewayAPI
-            from hub import WSHub
-            from auth import TokenManager
+        # Initialize Hub
+        token_mgr = TokenManager(
+            secret=Config.GRAVITY_HUB_SECRET,
+            registration_code=Config.GRAVITY_REGISTRATION_CODE,
+        )
+        hub = WSHub(token_mgr)
 
-            # Initialize Hub
-            token_mgr = TokenManager(
-                secret=Config.GRAVITY_HUB_SECRET,
-                registration_code=Config.GRAVITY_REGISTRATION_CODE,
-            )
-            hub = WSHub(token_mgr)
-
-            gateway_port = int(os.environ.get('GATEWAY_PORT', '8585'))
-            gateway = GatewayAPI(
-                bot, port=gateway_port,
-                api_key=Config.GATEWAY_API_KEY,
-                hub=hub,
-            )
-            bot.gateway = gateway  # Enable _write_command → gateway.push_command
-            bot.hub = hub          # Enable Hub-based message routing
-            await gateway.start()
-            logger.info(f"Gateway API + WS Hub running on port {gateway_port}")
+        gateway_port = int(os.environ.get('GATEWAY_PORT', '8585'))
+        gateway = GatewayAPI(
+            bot, port=gateway_port,
+            api_key=Config.GATEWAY_API_KEY,
+            hub=hub,
+        )
+        bot.gateway = gateway  # Enable _write_command → gateway.push_command
+        bot.hub = hub          # Enable Hub-based message routing
+        await gateway.start()
+        logger.info(f"Gateway API + WS Hub running on port {gateway_port}")
 
         # Run Discord bot (blocks until bot disconnects)
         await bot.start(Config.DISCORD_TOKEN)
@@ -100,8 +86,6 @@ async def main():
         logger.error(f"Fatal error: {e}", exc_info=True)
     finally:
         # Cleanup
-        if watcher:
-            watcher.stop()
         if not bot.is_closed():
             await bot.close()
         logger.info("Gravity Control shutdown complete")

models.py

@@ -0,0 +1,55 @@
+import time
+from dataclasses import dataclass, field
+from enum import Enum
+
+
+class ApprovalStatus(Enum):
+    PENDING = "pending"
+    APPROVED = "approved"
+    REJECTED = "rejected"
+    TIMEOUT = "timeout"
+
+
+@dataclass
+class ApprovalRequest:
+    """An approval request from Antigravity."""
+    request_id: str
+    conversation_id: str
+    command: str           # The command/action needing approval
+    description: str       # Human-readable description
+    timestamp: float
+    status: str = "pending"
+    discord_message_id: int = 0
+    project_name: str = ""  # Project routing key
+    step_type: str = ""  # e.g. 'diff_review', passed through to response
+    safe_to_auto_run: bool = False  # Allows bot to silently auto-approve
+
+
+@dataclass
+class UserResponse:
+    """A user response from Discord."""
+    request_id: str
+    approved: bool
+    user_input: str = ""
+    timestamp: float = field(default_factory=time.time)
+    button_index: int = -1  # -1 = legacy (approve/reject), 0+ = specific button index
+    step_type: str = ""  # pass through from pending for extension routing
+    project_name: str = ""  # for multi-project: extension uses this when pending file is missing
+
+
+class EventType(Enum):
+    """Types of brain events."""
+    SESSION_START = "session_start"      # New conversation directory created
+    FILE_CHANGED = "file_changed"        # Watched file modified
+    FILE_CREATED = "file_created"        # Watched file first created
+
+
+@dataclass
+class BrainEvent:
+    """An event from the brain directory."""
+    event_type: EventType
+    conversation_id: str
+    file_name: str = ""
+    file_path: str = None
+    content: str = ""
+    timestamp: float = field(default_factory=time.time)

scratch_test.js

@@ -1,4 +0,0 @@
-const fs = require('fs');
-const lsPath = "C:\\Users\\Variet-Worker\\.gemini\\antigravity\\sdk\\ls.js";
-// Dummy script to just read allTraj.trajectorySummaries by using the SDK directly?
-// Actually simpler: I can just grep the log if I log it.

start_bot.bat

@@ -1,63 +0,0 @@
-@echo off
-chcp 65001 >nul 2>&1
-title Gravity Bridge Bot
-
-echo ╔══════════════════════════════════════╗
-echo ║     Gravity Bridge Bot Launcher      ║
-echo ╚══════════════════════════════════════╝
-echo.
-
-echo [INFO] 로컬 테스트 (BOT_MODE=local)를 시작합니다.
-echo [INFO] 서버 배포는 BOT_MODE=gateway로 실행하세요.
-echo.
-echo 시작하려면 아무 키나 누르세요...
-pause >nul
-
-REM — Find Python (conda first, then system)
-set PYTHON=
-if exist "C:\ProgramData\miniforge3\envs\gravity_control\python.exe" (
-    set PYTHON=C:\ProgramData\miniforge3\envs\gravity_control\python.exe
-)
-if "%PYTHON%"=="" (
-    where python >nul 2>&1 && set PYTHON=python
-)
-if "%PYTHON%"=="" (
-    echo [ERROR] Python not found. Install Python 3.10+ or set path.
-    pause
-    exit /b 1
-)
-
-REM — Check .env
-if not exist "%~dp0.env" (
-    echo [SETUP] .env not found. Creating from .env.example...
-    if exist "%~dp0.env.example" (
-        copy "%~dp0.env.example" "%~dp0.env" >nul
-        echo [SETUP] .env created — edit it with your Discord token and Guild ID.
-        echo.
-        notepad "%~dp0.env"
-        echo Press any key after saving .env...
-        pause >nul
-    ) else (
-        echo [ERROR] .env.example not found.
-        pause
-        exit /b 1
-    )
-)
-
-REM — Install dependencies (first run)
-if not exist "%~dp0.deps_installed" (
-    echo [SETUP] Installing dependencies...
-    %PYTHON% -m pip install -r "%~dp0requirements.txt" -q
-    echo. > "%~dp0.deps_installed"
-    echo [SETUP] Dependencies installed.
-)
-
-echo [START] Starting bot with %PYTHON%...
-echo [START] Press Ctrl+C to stop.
-echo.
-
-%PYTHON% "%~dp0main.py"
-
-echo.
-echo [STOP] Bot stopped.
-pause

watcher.py

@@ -1,290 +0,0 @@
-"""Brain directory watcher — monitors Antigravity's brain/ for file changes.
-
-Uses watchdog to detect file creation/modification events in the brain directory.
-Emits events to an asyncio queue for the Discord bot to consume.
-
-Key design: ONLY emits events for meaningful content changes using hash dedup.
-"""
-
-import asyncio
-import hashlib
-import time
-import logging
-from pathlib import Path
-from dataclasses import dataclass, field
-from enum import Enum
-from watchdog.observers import Observer
-from watchdog.events import FileSystemEventHandler, FileSystemEvent
-
-from config import Config
-
-logger = logging.getLogger(__name__)
-
-
-class EventType(Enum):
-    """Types of brain events."""
-    SESSION_START = "session_start"      # New conversation directory created
-    FILE_CHANGED = "file_changed"        # Watched file modified
-    FILE_CREATED = "file_created"        # Watched file first created
-
-
-@dataclass
-class BrainEvent:
-    """An event from the brain directory."""
-    event_type: EventType
-    conversation_id: str
-    file_name: str = ""
-    file_path: Path = None
-    content: str = ""
-    timestamp: float = field(default_factory=time.time)
-
-
-class BrainEventHandler(FileSystemEventHandler):
-    """Watchdog handler that filters, debounces, and deduplicates brain events.
-
-    Phase 2 FIX: Only emits events for sessions belonging to the current project
-    (Config.PROJECT_NAME), using bridge/register/ files for session→project mapping.
-    """
-
-    def __init__(self, event_queue: asyncio.Queue, loop: asyncio.AbstractEventLoop):
-        super().__init__()
-        self.event_queue = event_queue
-        self.loop = loop
-        self._last_events: dict[str, float] = {}       # path -> timestamp (debounce)
-        self._content_hashes: dict[str, str] = {}       # path -> md5 hash (dedup)
-        self._known_sessions: set[str] = set()
-        # Phase 2: project filter
-        self._session_project_map: dict[str, str] = {}  # conv_id → project_name
-        self._project_map_ts: float = 0                  # last load timestamp
-        self._PROJECT_MAP_TTL: float = 60.0              # reload every 60s
-        self._initialize_known_sessions()
-
-    def _initialize_known_sessions(self):
-        """Scan existing brain directories to establish baseline (no events emitted).
-        Also pre-loads content hashes for watched files to prevent spurious events.
-        """
-        brain_path = Config.BRAIN_PATH
-        hash_count = 0
-        if brain_path.exists():
-            for entry in brain_path.iterdir():
-                if entry.is_dir() and self._is_conversation_id(entry.name):
-                    self._known_sessions.add(entry.name)
-                    # Pre-load content hashes for watched files
-                    for watched in Config.WATCHED_FILES:
-                        fpath = entry / watched
-                        if fpath.exists():
-                            try:
-                                content = fpath.read_text(encoding="utf-8")
-                                h = hashlib.md5(content.encode()).hexdigest()
-                                self._content_hashes[str(fpath)] = h
-                                hash_count += 1
-                            except (OSError, UnicodeDecodeError):
-                                pass
-            logger.info(
-                f"Found {len(self._known_sessions)} existing sessions, "
-                f"pre-loaded {hash_count} content hashes"
-            )
-
-    def _load_session_project_map(self) -> dict[str, str]:
-        """Load session→project mapping from bridge/register/ files (cached)."""
-        now = time.time()
-        if now - self._project_map_ts < self._PROJECT_MAP_TTL:
-            return self._session_project_map
-
-        import json
-        register_dir = Config.BRAIN_PATH.parent / "bridge" / "register"
-        if not register_dir.exists():
-            self._project_map_ts = now
-            return self._session_project_map
-
-        new_map: dict[str, str] = {}
-        for f in register_dir.glob("*.json"):
-            try:
-                data = json.loads(f.read_text(encoding="utf-8-sig"))
-                conv_id = data.get("conversation_id", "")
-                project = data.get("project_name", "")
-                if conv_id and project:
-                    new_map[conv_id] = project
-            except (json.JSONDecodeError, OSError):
-                pass
-
-        self._session_project_map = new_map
-        self._project_map_ts = now
-        return self._session_project_map
-
-    def _is_my_session(self, conv_id: str) -> bool:
-        """Check if a session belongs to the current project.
-
-        Returns True for:
-        - Sessions registered to Config.PROJECT_NAME
-        - Unknown sessions (not in any register file — allow to avoid blocking)
-        Returns False for sessions registered to OTHER projects.
-        """
-        session_map = self._load_session_project_map()
-        project = session_map.get(conv_id)
-        if project is None:
-            return True  # Unknown → allow (newly started, not yet registered)
-        return project == Config.PROJECT_NAME
-
-    def dispatch(self, event: FileSystemEvent):
-        """Early filter: skip events for files/dirs we don't care about.
-
-        This runs BEFORE on_created/on_modified, avoiding unnecessary
-        method dispatch overhead for the majority of file events.
-        """
-        path = Path(event.src_path)
-
-        # Skip .system_generated and logs subdirectories immediately
-        path_parts = path.parts
-        if '.system_generated' in path_parts or 'logs' in path_parts:
-            return
-
-        # For file events, skip non-watched files immediately
-        if not event.is_directory:
-            file_name = path.name
-            if not self._is_watched_file(file_name):
-                return
-
-        super().dispatch(event)
-
-    def _is_conversation_id(self, name: str) -> bool:
-        parts = name.split("-")
-        return len(parts) == 5 and all(len(p) >= 4 for p in parts)
-
-    def _get_conversation_id(self, path: Path) -> str | None:
-        brain_path = Config.BRAIN_PATH
-        try:
-            relative = path.relative_to(brain_path)
-            parts = relative.parts
-            if parts and self._is_conversation_id(parts[0]):
-                return parts[0]
-        except ValueError:
-            pass
-        return None
-
-    def _should_debounce(self, path_str: str) -> bool:
-        now = time.time()
-        last = self._last_events.get(path_str, 0)
-        if now - last < Config.DEBOUNCE_SECONDS:
-            return True
-        self._last_events[path_str] = now
-        return False
-
-    def _content_changed(self, path_str: str, content: str) -> bool:
-        """Check if content actually changed using MD5 hash."""
-        new_hash = hashlib.md5(content.encode()).hexdigest()
-        old_hash = self._content_hashes.get(path_str)
-        if old_hash == new_hash:
-            return False
-        self._content_hashes[path_str] = new_hash
-        return True
-
-    def _is_watched_file(self, file_name: str) -> bool:
-        """Filter: watch primary artifact files + any file matching watched extensions."""
-        if file_name in Config.WATCHED_FILES:
-            return True
-        # Extension-based matching (e.g., any .md file in conversation dir)
-        ext = Path(file_name).suffix
-        if ext and ext in Config.WATCHED_EXTENSIONS:
-            return True
-        return False
-
-    def _emit(self, event: BrainEvent):
-        self.loop.call_soon_threadsafe(self.event_queue.put_nowait, event)
-
-    def on_created(self, event: FileSystemEvent):
-        if event.is_directory:
-            self._handle_directory_created(Path(event.src_path))
-        else:
-            self._handle_file_event(Path(event.src_path), EventType.FILE_CREATED)
-
-    def on_modified(self, event: FileSystemEvent):
-        if not event.is_directory:
-            self._handle_file_event(Path(event.src_path), EventType.FILE_CHANGED)
-
-    def _handle_directory_created(self, path: Path):
-        conv_id = self._get_conversation_id(path)
-        if conv_id and conv_id not in self._known_sessions:
-            if path.parent == Config.BRAIN_PATH:
-                self._known_sessions.add(conv_id)
-                logger.info(f"New session detected: {conv_id}")
-                self._emit(BrainEvent(
-                    event_type=EventType.SESSION_START,
-                    conversation_id=conv_id,
-                ))
-
-    def _handle_file_event(self, path: Path, event_type: EventType):
-        conv_id = self._get_conversation_id(path)
-        if not conv_id:
-            return
-
-        # Phase 2 FIX: only emit events for MY project's sessions
-        if not self._is_my_session(conv_id):
-            return
-
-        # Exclude files in .system_generated subdirectory (AG internal logs)
-        try:
-            relative = path.relative_to(Config.BRAIN_PATH / conv_id)
-            if '.system_generated' in relative.parts:
-                return
-        except ValueError:
-            pass
-
-        file_name = path.name
-
-        # Filter: watched files by name or extension
-        if not self._is_watched_file(file_name):
-            return
-
-        # Debounce: skip rapid-fire events for same file
-        if self._should_debounce(str(path)):
-            return
-
-        # Read file content
-        try:
-            content = path.read_text(encoding="utf-8")
-        except (OSError, UnicodeDecodeError) as e:
-            logger.warning(f"Failed to read {path}: {e}")
-            return
-
-        # Content hash dedup: skip if content hasn't actually changed
-        if not self._content_changed(str(path), content):
-            return
-
-        logger.info(f"File event: {event_type.value} {conv_id[:8]}/{file_name}")
-        self._emit(BrainEvent(
-            event_type=event_type,
-            conversation_id=conv_id,
-            file_name=file_name,
-            file_path=path,
-            content=content,
-        ))
-
-
-class BrainWatcher:
-    """Manages the watchdog observer for the brain directory."""
-
-    def __init__(self, event_queue: asyncio.Queue, loop: asyncio.AbstractEventLoop):
-        self.event_queue = event_queue
-        self.loop = loop
-        self.observer = Observer()
-        self.handler = BrainEventHandler(event_queue, loop)
-
-    def start(self):
-        brain_path = Config.BRAIN_PATH
-        if not brain_path.exists():
-            logger.error(f"Brain path does not exist: {brain_path}")
-            return
-
-        self.observer.schedule(self.handler, str(brain_path), recursive=True)
-        self.observer.start()
-        logger.info(f"Watching brain directory: {brain_path}")
-
-    def stop(self):
-        self.observer.stop()
-        self.observer.join()
-        logger.info("Brain watcher stopped")
-
-    @property
-    def known_sessions(self) -> set[str]:
-        return self.handler._known_sessions