Initial Arka plugin registry: Official plugins mirror + Arka-signed index

11 plugins from github.com/librefang/librefang-registry plugins/.
index.json / index.json.sig are signed with Arka's Ed25519 key
(not upstream stats.librefang.ai). Private key is not in this repo.

plugins/todo-tracker/hooks/ingest.py

@@ -0,0 +1,62 @@
+#!/usr/bin/env python3
+"""Todo tracker ingest hook.
+
+Returns pending todo items as a memory fragment so agents stay aware
+of outstanding action items during conversations.
+
+Receives via stdin:
+    {"type": "ingest", "agent_id": "...", "message": "user message text"}
+
+Prints to stdout:
+    {"type": "ingest_result", "memories": [{"content": "..."}]}
+"""
+import json
+import os
+import sys
+
+
+def get_todos_path(agent_id):
+    """Return the path to the todos file for the given agent."""
+    home = os.path.expanduser("~")
+    return os.path.join(
+        home, ".librefang", "plugins", "todo-tracker", f"{agent_id}.json"
+    )
+
+
+def load_todos(agent_id):
+    """Load existing todos from disk. Returns a list of todo dicts."""
+    path = get_todos_path(agent_id)
+    if not os.path.isfile(path):
+        return []
+    try:
+        with open(path, "r", encoding="utf-8") as f:
+            data = json.load(f)
+        return data.get("todos", [])
+    except (OSError, IOError, json.JSONDecodeError):
+        return []
+
+
+def main():
+    request = json.loads(sys.stdin.read())
+    agent_id = request.get("agent_id", "unknown")
+
+    memories = []
+    todos = load_todos(agent_id)
+
+    # Filter to pending items only
+    pending = [t for t in todos if t.get("status") == "pending"]
+
+    if pending:
+        items = []
+        for i, todo in enumerate(pending, 1):
+            items.append(f"{i}) {todo.get('text', '?')}")
+        items_str = " ".join(items)
+        memories.append(
+            {"content": f"[todo] Pending items: {items_str}"}
+        )
+
+    print(json.dumps({"type": "ingest_result", "memories": memories}))
+
+
+if __name__ == "__main__":
+    main()