fix(graph): normalize wing slug at init so topic tunnels fire for hyphenated dirs (#1194)

CHANGELOG.md

@@ -19,6 +19,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 
 ### Bug Fixes
 
+- **Cross-wing topic tunnels for hyphenated dir names.** `mempalace init` recorded the `topics_by_wing` registry key under the raw directory name (e.g. `mempalace-public`), while `mempalace.yaml`'s `wing` field used the lower-cased + separator-collapsed slug (`mempalace_public`). At mine time the miner read the slug from the yaml and missed the registry, so `_compute_topic_tunnels_for_wing` returned `0` silently. Real-world: any project whose folder contained a hyphen or space lost every topic tunnel. Now both call sites route through a shared `normalize_wing_name()` in `config.py`. (#1194, follow-up to #1180)
 - **CLI `mempalace search` retrieval quality.** The CLI was using pure ChromaDB cosine distance with no BM25 rerank, so drawers containing every query term but embedding as noise (directory listings, diff output, shell logs) scored `Match: 0.0` alongside genuinely irrelevant results with no way to tell them apart. Wired the CLI through the same `_hybrid_rank` the `mempalace_search` MCP tool already used, and surfaced both `cosine=` and `bm25=` scores in the output so users see which component of the match is firing. MCP search was unaffected; this fixes the human-facing CLI parity gap.
 - **Legacy-palace distance-metric warning.** CLI search now detects palaces created before `hnsw:space=cosine` was consistently set and prints a one-line notice pointing at `mempalace repair`. Without the warning such palaces silently used L2 distance, under which the similarity display floored every result to `Match: 0.0`. New palaces mined today already set cosine correctly and now have invariant tests pinning that behavior so future refactors can't silently regress it. (#1179)
 - **Graceful Ctrl-C during `mempalace mine`.** Interrupting a long mine no longer dumps a multi-frame `KeyboardInterrupt` traceback. The main file-processing loop now catches the signal, prints `files_processed: N/M`, `drawers_filed: K`, and `last_file:` so the user knows what landed, then exits with code 130 (standard SIGINT). Already-filed drawers are upserted idempotently on re-mine via deterministic IDs, so resuming is safe. The hooks PID lock at `~/.mempalace/hook_state/mine.pid` is now also actively cleaned up in a `finally` when its entry points at us — clean exit, error, or interrupt — preventing the next hook fire from briefly waiting on a stale PID. (#1182)

mempalace/cli.py

@@ -329,13 +329,14 @@ def cmd_init(args):
                 json.dump(confirmed, f, indent=2, ensure_ascii=False)
             print(f"  Entities saved: {entities_path}")
 
+            from .config import normalize_wing_name
             from .miner import add_to_known_entities
 
-            # Wing matches the default produced by ``room_detector_local``
-            # (folder basename) and the miner fallback in ``load_config``.
-            # Used by the topics_by_wing map so cross-wing tunnels can be
-            # computed at mine time.
-            wing = project_path.name
+            # Match the slug ``room_detector_local`` writes into
+            # ``mempalace.yaml`` so the miner's tunnel lookup hits the
+            # same key in ``topics_by_wing`` at mine time (issue #1194 —
+            # without this, hyphenated dirnames silently lose tunnels).
+            wing = normalize_wing_name(project_path.name)
             registry_path = add_to_known_entities(confirmed, wing=wing)
             print(f"  Registry updated: {registry_path}")
     else:

mempalace/config.py

@@ -19,6 +19,16 @@
 _SAFE_NAME_RE = re.compile(r"^(?:[^\W_]|[^\W_][\w .'-]{0,126}[^\W_])$")
 
 
+def normalize_wing_name(name: str) -> str:
+    """Lower-case + collapse separators (`-`, ` `) to `_` for wing slugs.
+
+    The same rule is applied by ``init`` when persisting `topics_by_wing`
+    and when writing `mempalace.yaml`, so the miner's lookup matches at
+    mine time regardless of the source dirname.
+    """
+    return name.lower().replace(" ", "_").replace("-", "_")
+
+
 def sanitize_name(value: str, field_name: str = "name") -> str:
     """Validate and sanitize a wing/room/entity name.
 

mempalace/convo_miner.py

@@ -394,7 +394,9 @@ def mine_convos(
 
     convo_path = Path(convo_dir).expanduser().resolve()
     if not wing:
-        wing = convo_path.name.lower().replace(" ", "_").replace("-", "_")
+        from .config import normalize_wing_name
+
+        wing = normalize_wing_name(convo_path.name)
 
     files = scan_convos(convo_dir)
     if limit > 0:

mempalace/miner.py

@@ -286,7 +286,15 @@ def load_config(project_dir: str) -> dict:
         if legacy_path.exists():
             config_path = legacy_path
         else:
-            wing_name = resolved_project_dir.name
+            from .config import normalize_wing_name
+
+            # Normalize the dirname-derived fallback wing the same way
+            # ``cmd_init`` and ``room_detector_local`` do — otherwise a
+            # hyphenated project mined without a yaml file lands under a
+            # raw-name wing while ``topics_by_wing`` was keyed under the
+            # normalized slug, silently dropping every topic tunnel
+            # (the no-yaml branch of issue #1194).
+            wing_name = normalize_wing_name(resolved_project_dir.name)
             print(
                 f"  No mempalace.yaml found in {resolved_project_dir} "
                 f"— using auto-detected defaults (wing='{wing_name}'). "

mempalace/room_detector_local.py

@@ -303,8 +303,10 @@ def save_config(project_dir: str, project_name: str, rooms: list):
 
 def detect_rooms_local(project_dir: str, yes: bool = False):
     """Main entry point for local setup."""
+    from .config import normalize_wing_name
+
     project_path = Path(project_dir).expanduser().resolve()
-    project_name = project_path.name.lower().replace(" ", "_").replace("-", "_")
+    project_name = normalize_wing_name(project_path.name)
 
     if not project_path.exists():
         print(f"ERROR: Directory not found: {project_dir}")

tests/test_cli.py

@@ -138,6 +138,43 @@ def test_cmd_init_with_entities(mock_config_cls, tmp_path):
         cmd_init(args)
 
 
+@patch("mempalace.cli.MempalaceConfig")
+def test_cmd_init_normalizes_wing_name_for_topics_registry(mock_config_cls, tmp_path):
+    """Regression for #1194: hyphenated dir names must be normalized to the
+    same slug ``mempalace.yaml`` uses, otherwise ``topics_by_wing`` keys
+    miss the miner's lookup at mine time and tunnels are silently dropped.
+    """
+    project = tmp_path / "my-cool-app"
+    project.mkdir()
+    fake_files = [project / "a.txt"]
+    detected = {
+        "people": [{"name": "Alice"}],
+        "projects": [],
+        "topics": [{"name": "Bun"}],
+        "uncertain": [],
+    }
+    confirmed = {"people": ["Alice"], "projects": [], "topics": ["Bun"]}
+    args = argparse.Namespace(dir=str(project), yes=True)
+    with (
+        patch("mempalace.entity_detector.scan_for_detection", return_value=fake_files),
+        patch("mempalace.entity_detector.detect_entities", return_value=detected),
+        patch("mempalace.entity_detector.confirm_entities", return_value=confirmed),
+        patch("mempalace.miner.add_to_known_entities") as mock_register,
+        patch("mempalace.room_detector_local.detect_rooms_local"),
+        patch("builtins.open", MagicMock()),
+        patch("mempalace.cli._maybe_run_mine_after_init"),
+        # Pass-zero corpus-origin detection runs unconditionally inside
+        # cmd_init now (#1221 / #1223). It accesses MempalaceConfig fields
+        # that don't survive MagicMock stringification, so stub it out —
+        # this test only cares about the wing-slug write to the registry.
+        patch("mempalace.cli._run_pass_zero", return_value=None),
+    ):
+        mock_register.return_value = "/tmp/known_entities.json"
+        cmd_init(args)
+        mock_register.assert_called_once()
+        assert mock_register.call_args.kwargs["wing"] == "my_cool_app"
+
+
 @patch("mempalace.cli.MempalaceConfig")
 def test_cmd_init_with_entities_zero_total(mock_config_cls, tmp_path, capsys):
     """When entities detected but total is 0, prints 'No entities' message."""

tests/test_config.py

@@ -3,7 +3,7 @@
 import tempfile
 
 import pytest
-from mempalace.config import MempalaceConfig, sanitize_kg_value, sanitize_name
+from mempalace.config import MempalaceConfig, normalize_wing_name, sanitize_kg_value, sanitize_name
 
 
 def test_default_config():
@@ -110,6 +110,25 @@ def test_init():
     assert os.path.exists(os.path.join(tmpdir, "config.json"))
 
 
+# --- normalize_wing_name ---
+
+
+def test_normalize_wing_name_hyphen():
+    assert normalize_wing_name("mempal-private") == "mempal_private"
+
+
+def test_normalize_wing_name_space():
+    assert normalize_wing_name("My Project") == "my_project"
+
+
+def test_normalize_wing_name_already_clean():
+    assert normalize_wing_name("memorymark") == "memorymark"
+
+
+def test_normalize_wing_name_mixed():
+    assert normalize_wing_name("My-Cool App") == "my_cool_app"
+
+
 # --- sanitize_name ---
 
 

tests/test_miner.py

@@ -67,6 +67,24 @@ def test_load_config_uses_defaults_when_yaml_missing():
         shutil.rmtree(tmpdir)
 
 
+def test_load_config_no_yaml_normalizes_hyphenated_wing():
+    """Fallback wing name is normalized so it matches topics_by_wing keys.
+
+    Regression for the no-yaml branch of #1194: ``cmd_init`` writes
+    ``topics_by_wing`` under the normalized slug, so the miner's
+    fallback wing must use the same normalization or the tunnel lookup
+    misses every key for hyphenated dirnames.
+    """
+    parent = tempfile.mkdtemp()
+    try:
+        project_root = Path(parent) / "my-cool-app"
+        project_root.mkdir()
+        config = load_config(str(project_root))
+        assert config["wing"] == "my_cool_app"
+    finally:
+        shutil.rmtree(parent)
+
+
 def test_scan_project_skips_mempalace_generated_files():
     with tempfile.TemporaryDirectory() as tmpdir:
         project_root = Path(tmpdir).resolve()