skills: pi_wake_agent skill definition (YAML + JSON)

- pi_wake_agent.skill.yaml: Full skill definition with all capabilities, parameters, examples, error handling, testing
- pi_wake_agent.skill.json: OpenAI function calling compatible schema

pi_wake_agent.skill.json

@@ -0,0 +1,51 @@
+{
+  "name": "pi_wake_agent",
+  "description": "Multi-agent wake-up timer with self-cron/daemon/succession modes. Sends doorbell injections via zellij and durable messages via h5i bus.",
+  "parameters": {
+    "type": "object",
+    "properties": {
+      "mode": {
+        "type": "string",
+        "enum": ["install", "once", "daemon", "succession", "run", "remove", "list", "status", "validate"],
+        "description": "Operation mode"
+      },
+      "interval": {
+        "type": "string",
+        "pattern": "^\\d+[hms]$",
+        "default": "1h",
+        "description": "Interval duration. Formats: 30m, 1h, 90m, 2h, 10s"
+      },
+      "session": {
+        "type": "array",
+        "items": { "type": "string" },
+        "description": "Zellij session name(s). Repeatable."
+      },
+      "sessions": {
+        "type": "string",
+        "description": "Comma-separated list of sessions"
+      },
+      "message": {
+        "type": "string",
+        "default": "Operator says CONTINUE. pi_nvnemo here, saying hi!",
+        "description": "Wake message sent to agent(s)"
+      },
+      "count": {
+        "type": "integer",
+        "minimum": 1,
+        "default": 1,
+        "description": "Number of runs for succession mode"
+      },
+      "dry_run": {
+        "type": "boolean",
+        "default": false,
+        "description": "Show what would be done without executing"
+      },
+      "debug": {
+        "type": "boolean",
+        "default": false,
+        "description": "Enable debug logging"
+      }
+    },
+    "required": ["mode"]
+  }
+}