2 files changed, 134 insertions, 0 deletions
diff --git a/src/integration/assets/antigravity_cli/herdr-agent-state.ps1 b/src/integration/assets/antigravity_cli/herdr-agent-state.ps1
new file mode 100644
index 00000000..aecb42a9
--- /dev/null
+++ b/src/integration/assets/antigravity_cli/herdr-agent-state.ps1
@@ -0,0 +1,57 @@
+# installed by herdr
+# managed by herdr; reinstalling or updating the integration overwrites this file.
+# add custom hooks beside this file instead of editing it.
+# HERDR_INTEGRATION_ID=antigravity_cli
+# HERDR_INTEGRATION_VERSION=1
+
+# Session-only: this hook reports the Antigravity conversation so Herdr can
+# resume the pane. Lifecycle state comes from Herdr's screen detection.
+
+param([string]$Action = "")
+
+# Antigravity CLI expects a JSON object on stdout and this hook never injects
+# anything, so every exit path emits an empty object.
+function Exit-Hook {
+    Write-Output "{}"
+    exit 0
+}
+
+if ($Action -ne "session") { Exit-Hook }
+if ($env:HERDR_ENV -ne "1") { Exit-Hook }
+if ([string]::IsNullOrWhiteSpace($env:HERDR_PANE_ID)) { Exit-Hook }
+
+$inputText = [Console]::In.ReadToEnd()
+try {
+    $payload = if ([string]::IsNullOrWhiteSpace($inputText)) { $null } else { $inputText | ConvertFrom-Json }
+} catch {
+    Exit-Hook
+}
+
+if ($null -eq $payload) { Exit-Hook }
+
+$conversationId = if ($payload.conversationId -is [string]) { $payload.conversationId } else { $null }
+if ([string]::IsNullOrWhiteSpace($conversationId)) { Exit-Hook }
+
+$seq = [DateTimeOffset]::UtcNow.ToUnixTimeMilliseconds()
+try {
+    $sessionArgs = @(
+        "pane",
+        "report-agent-session",
+        $env:HERDR_PANE_ID,
+        "--source",
+        "herdr:antigravity_cli",
+        "--agent",
+        "agy",
+        "--seq",
+        "$seq",
+        "--agent-session-id",
+        "$conversationId"
+    )
+    if ($payload.transcriptPath -is [string] -and -not [string]::IsNullOrWhiteSpace($payload.transcriptPath)) {
+        $sessionArgs += @("--agent-session-path", "$($payload.transcriptPath)")
+    }
+    & herdr @sessionArgs 2>$null | Out-Null
+} catch {
+}
+
+Exit-Hook
diff --git a/src/integration/assets/antigravity_cli/herdr-agent-state.sh b/src/integration/assets/antigravity_cli/herdr-agent-state.sh
new file mode 100644
index 00000000..dd3db028
--- /dev/null
+++ b/src/integration/assets/antigravity_cli/herdr-agent-state.sh
@@ -0,0 +1,77 @@
+#!/bin/sh
+# installed by herdr
+# managed by herdr; reinstalling or updating the integration overwrites this file.
+# add custom hooks beside this file instead of editing it.
+# HERDR_INTEGRATION_ID=antigravity_cli
+# HERDR_INTEGRATION_VERSION=1
+
+# Session-only: this hook reports the Antigravity conversation so Herdr can
+# resume the pane. Lifecycle state comes from Herdr's screen detection.
+
+set -eu
+
+# Antigravity CLI expects a JSON object on stdout and this hook never injects
+# anything, so every exit path emits an empty object.
+emit_and_exit() {
+  printf '{}\n'
+  exit 0
+}
+
+[ "${1:-}" = "session" ] || emit_and_exit
+[ "${HERDR_ENV:-}" = "1" ] || emit_and_exit
+[ -n "${HERDR_SOCKET_PATH:-}" ] || emit_and_exit
+[ -n "${HERDR_PANE_ID:-}" ] || emit_and_exit
+command -v python3 >/dev/null 2>&1 || emit_and_exit
+
+python3 -c '
+import json
+import os
+import socket
+import sys
+import time
+
+try:
+    payload = json.load(sys.stdin)
+except Exception:
+    raise SystemExit(0)
+
+if not isinstance(payload, dict):
+    raise SystemExit(0)
+
+def text(name):
+    value = payload.get(name)
+    return value if isinstance(value, str) and value else None
+
+session_id = text("conversationId")
+if session_id is None:
+    raise SystemExit(0)
+
+seq = time.time_ns()
+params = {
+    "pane_id": os.environ["HERDR_PANE_ID"],
+    "source": "herdr:antigravity_cli",
+    "agent": "agy",
+    "seq": seq,
+    "agent_session_id": session_id,
+}
+
+transcript_path = text("transcriptPath")
+if transcript_path is not None:
+    params["agent_session_path"] = transcript_path
+
+request = json.dumps({
+    "id": f"herdr:antigravity_cli:{seq}",
+    "method": "pane.report_agent_session",
+    "params": params,
+})
+try:
+    with socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) as client:
+        client.settimeout(0.5)
+        client.connect(os.environ["HERDR_SOCKET_PATH"])
+        client.sendall((request + "\n").encode())
+        client.recv(4096)
+except Exception:
+    pass
+' 2>/dev/null || true
+
+emit_and_exit