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/mempalace-indexer/tests/test_ingest.py

@@ -0,0 +1,114 @@
+"""Tests for the ingest hook (stdin/stdout interface)."""
+import importlib.util
+import json
+import os
+import subprocess
+import sys
+from pathlib import Path
+
+HOOK = Path(__file__).parent.parent / "hooks" / "ingest.py"
+
+
+def run_hook(payload: dict) -> dict:
+    result = subprocess.run(
+        [sys.executable, str(HOOK)],
+        input=json.dumps(payload),
+        capture_output=True,
+        text=True,
+    )
+    return json.loads(result.stdout.strip())
+
+
+def test_bad_json_returns_empty():
+    result = subprocess.run(
+        [sys.executable, str(HOOK)],
+        input="not json",
+        capture_output=True,
+        text=True,
+    )
+    out = json.loads(result.stdout.strip())
+    assert out == {"memories": []}
+
+
+def test_empty_message_returns_empty():
+    out = run_hook({"type": "ingest", "agent_id": "a1", "message": ""})
+    assert out == {"memories": []}
+
+
+def test_short_message_returns_empty():
+    out = run_hook({"type": "ingest", "agent_id": "a1", "message": "hi"})
+    assert out == {"memories": []}
+
+
+def test_no_mempalace_returns_error_not_crash():
+    """Without mempalace installed, ingest returns error field but doesn't crash."""
+    out = run_hook({"type": "ingest", "agent_id": "a1", "message": "What are my upcoming meetings?"})
+    assert "memories" in out
+    assert isinstance(out["memories"], list)
+    assert "error" in out
+
+
+# ---------------------------------------------------------------------------
+# Similarity filtering (unit-level, no mempalace needed)
+# ---------------------------------------------------------------------------
+
+def _load_ingest_module(min_similarity="0.3"):
+    saved = os.environ.get("MEMPALACE_MIN_SIMILARITY")
+    os.environ["MEMPALACE_MIN_SIMILARITY"] = min_similarity
+    spec = importlib.util.spec_from_file_location("ingest", HOOK)
+    mod = importlib.util.module_from_spec(spec)
+    spec.loader.exec_module(mod)
+    if saved is None:
+        os.environ.pop("MEMPALACE_MIN_SIMILARITY", None)
+    else:
+        os.environ["MEMPALACE_MIN_SIMILARITY"] = saved
+    return mod
+
+
+def test_truncate_at_word_boundary():
+    mod = _load_ingest_module()
+    text = "one two three four five six seven"
+    result = mod.truncate_at_word(text, 15)
+    assert result.endswith("...")
+    assert len(result) <= 18
+
+
+def test_truncate_short_unchanged():
+    mod = _load_ingest_module()
+    assert mod.truncate_at_word("hello", 100) == "hello"
+
+
+def test_similarity_threshold_filters_results():
+    """Simulate the similarity filtering logic directly."""
+    mod = _load_ingest_module(min_similarity="0.5")
+
+    results = [
+        {"text": "good match", "source_file": "s1", "wing": "w1", "similarity": 0.8},
+        {"text": "bad match",  "source_file": "s2", "wing": "w1", "similarity": 0.2},
+        {"text": "no score",   "source_file": "s3", "wing": "w1"},
+    ]
+
+    MIN_SIMILARITY = mod.MIN_SIMILARITY
+    memories = []
+    for r in results:
+        text = r.get("text", "")
+        similarity = r.get("similarity")
+        if not text:
+            continue
+        if similarity is not None and MIN_SIMILARITY > 0 and similarity < MIN_SIMILARITY:
+            continue
+        memories.append(text)
+
+    assert "good match" in memories
+    assert "bad match" not in memories
+    assert "no score" in memories   # passthrough when similarity is absent
+
+
+def test_similarity_zero_disables_filtering():
+    mod = _load_ingest_module(min_similarity="0")
+    assert mod.MIN_SIMILARITY == 0.0
+
+
+def test_min_similarity_default():
+    mod = _load_ingest_module()
+    assert mod.MIN_SIMILARITY == 0.3