init: llm-wiki-haness 하네스 설계

harness/source/agents/extraction-broker.json

@@ -0,0 +1,14 @@
+{
+  "schema_version": 1,
+  "source_kind": "agent",
+  "id": "extraction-broker",
+  "description": "Use for bulk extraction requests — reading many raw/wiki files to pull question-relevant facts and verbatim quotes. Drives the external-subscription extraction driver (scripts/deep-research/deep_research/extract.py, codex/agy backends), re-extracts failed files itself, and returns ONLY the verified digest with file:line pointers — never the raw corpus. T1(external)+T2(haiku) lane of rules/extraction-tiering.md; read-only.",
+  "heading_locale": "mixed",
+  "body_path": "harness/source/agents/bodies/extraction-broker.md",
+  "targets": [
+    {
+      "kind": "claude-agent-md",
+      "path": ".claude/agents/extraction-broker.md"
+    }
+  ]
+}