config(git,claude,ssh): templated gitconfig; claude settings/commands/hooks/skills; ssh config

gitconfig: name/email from chezmoi data, gh credential helper by PATH
lookup (portable to darwin). claude: no credentials, history, projects,
sessions, or plugin caches. ssh config as private_ (0600).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

dot_claude/skills/agents-sdk/references/observability.md

@@ -0,0 +1,44 @@
+# Observability
+
+Fetch https://developers.cloudflare.com/agents/api-reference/observability/ for complete documentation.
+
+Agents emit structured events via Node.js `diagnostics_channel`. Subscribe in development or forward via Tail Workers in production.
+
+## Subscribe to Events
+
+```typescript
+import { subscribe } from "agents/observability";
+
+subscribe("agents:rpc", (event) => {
+  console.log(`RPC call: ${event.payload.method}`);
+});
+
+subscribe("agents:state", (event) => {
+  console.log(`State change on ${event.agent}`);
+});
+```
+
+## Available Channels
+
+| Channel | Events |
+|---------|--------|
+| `agents:state` | State changes |
+| `agents:rpc` | `@callable` invocations |
+| `agents:message` | WebSocket messages |
+| `agents:schedule` | Schedule triggers |
+| `agents:lifecycle` | Agent start, connect, disconnect |
+| `agents:workflow` | Workflow progress, completion, errors |
+| `agents:mcp` | MCP server connections, tool calls |
+| `agents:email` | Email received |
+
+## Per-Agent Override
+
+```typescript
+export class MyAgent extends Agent<Env, State> {
+  observability = undefined; // disable for this agent
+}
+```
+
+## Production: Tail Workers
+
+In production, events appear as `diagnosticsChannelEvents` on the Tail Worker `event` object. Attach a Tail Worker to your agent's Worker to forward events to your observability platform.