tools(h6i): IRC presence codified — CC skill + open-format spec + reference client + MCP registration

Claude Code skill .claude/skills/h6i-irc (speak/listen/auto-wake via Monitor);
harness-agnostic H6I_PRESENCE_OPEN_SKILL.md with per-harness wake recipes
(codex/pi/MiMo/MCP); env-parameterized stdlib client prod/tools/h6i_presence;
TcpSocketMCP registered as irc-h6i in .mcp.json. Doctrine: nick=h5i handle,
doorbell IRC / payload h5i, untrusted input.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.mcp.json

@@ -0,0 +1,19 @@
+{
+  "mcpServers": {
+    "argos": {
+      "type": "stdio",
+      "command": "argosbrain-mcp",
+      "args": [],
+      "env": {
+        "ARGOSBRAIN_DASHBOARD": "1",
+        "ARGOSBRAIN_RERANKER": "1"
+      }
+    },
+    "irc-h6i": {
+      "type": "stdio",
+      "command": "python3",
+      "args": ["-m", "TcpSocketMCP"],
+      "env": {}
+    }
+  }
+}