Initial commit: OpenClaw Skill Collection

6 custom skills (assign-task, dispatch-webhook, daily-briefing,
task-capture, qmd-brain, tts-voice) with technical documentation.
Compatible with Claude Code, OpenClaw, Codex CLI, and OpenCode.

openclaw-knowhow-skill/output/openclaw-docs_data/pages/Gateway_Lock_be599c7ac7.json

@@ -0,0 +1,29 @@
+{
+  "title": "Gateway lock",
+  "content": "Last updated: 2025-12-11\n\n* Ensure only one gateway instance runs per base port on the same host; additional gateways must use isolated profiles and unique ports.\n* Survive crashes/SIGKILL without leaving stale lock files.\n* Fail fast with a clear error when the control port is already occupied.\n\n* The gateway binds the WebSocket listener (default `ws://127.0.0.1:18789`) immediately on startup using an exclusive TCP listener.\n* If the bind fails with `EADDRINUSE`, startup throws `GatewayLockError(\"another gateway instance is already listening on ws://127.0.0.1:<port>\")`.\n* The OS releases the listener automatically on any process exit, including crashes and SIGKILL—no separate lock file or cleanup step is needed.\n* On shutdown the gateway closes the WebSocket server and underlying HTTP server to free the port promptly.\n\n* If another process holds the port, startup throws `GatewayLockError(\"another gateway instance is already listening on ws://127.0.0.1:<port>\")`.\n* Other bind failures surface as `GatewayLockError(\"failed to bind gateway socket on ws://127.0.0.1:<port>: …\")`.\n\n* If the port is occupied by *another* process, the error is the same; free the port or choose another with `openclaw gateway --port <port>`.\n* The macOS app still maintains its own lightweight PID guard before spawning the gateway; the runtime lock is enforced by the WebSocket bind.",
+  "code_samples": [],
+  "headings": [
+    {
+      "level": "h2",
+      "text": "Why",
+      "id": "why"
+    },
+    {
+      "level": "h2",
+      "text": "Mechanism",
+      "id": "mechanism"
+    },
+    {
+      "level": "h2",
+      "text": "Error surface",
+      "id": "error-surface"
+    },
+    {
+      "level": "h2",
+      "text": "Operational notes",
+      "id": "operational-notes"
+    }
+  ],
+  "url": "llms-txt#gateway-lock",
+  "links": []
+}