feat(plugins): surface entry-point plugins in hermes plugins list

Salvaged from #40346; re-verified on main, tightened, tested.

Co-authored-by: tjboudreaux <tjboudreaux@users.noreply.github.com>

hermes_cli/plugins_cmd.py

@@ -10,6 +10,7 @@ rendered with Rich Markdown.  Otherwise a default confirmation is shown.
 from __future__ import annotations
 
 import functools
+import importlib.metadata
 import json
 import logging
 import os
@@ -1015,11 +1016,11 @@ def _scan_level(
 
 def _discover_all_plugins() -> list:
     """Return a list of (name, version, description, source, dir_path, key) for
-    every plugin the loader can see — user + bundled + project.
+    every plugin the loader can see — user + bundled + project + entry point.
 
     Matches the ordering/dedup of ``PluginManager.discover_and_load``:
-    bundled first, then user, then project; user overrides bundled on
-    key collision.
+    bundled first, then user, then project, then entry points. Later sources
+    override earlier ones on key collision.
     """
     seen: dict = {}  # key -> (name, version, description, source, path, key)
 
@@ -1031,9 +1032,47 @@ def _discover_all_plugins() -> list:
         (_plugins_dir(), "user", set()),
     ):
         _scan_level(base, source, skip, "", 0, seen)
+
+    # Entry-point plugins (installed as Python packages; no plugin directory).
+    for name, version, description, path in _discover_entrypoint_plugins():
+        seen[name] = (name, version, description, "entrypoint", path, name)
     return list(seen.values())
 
 
+def _discover_entrypoint_plugins() -> list[tuple[str, str, str, str]]:
+    """Return plugin entries advertised through ``hermes_agent.plugins``.
+
+    Entry-point plugins are installed as Python packages, so they do not have a
+    plugin directory under ``~/.hermes/plugins``. Include package metadata here
+    so ``hermes plugins list`` can show and enable them.
+    """
+    from hermes_cli.plugins import ENTRY_POINTS_GROUP
+
+    try:
+        eps = importlib.metadata.entry_points()
+        if hasattr(eps, "select"):
+            group_eps = eps.select(group=ENTRY_POINTS_GROUP)
+        elif isinstance(eps, dict):
+            group_eps = eps.get(ENTRY_POINTS_GROUP, [])
+        else:
+            group_eps = [ep for ep in eps if ep.group == ENTRY_POINTS_GROUP]
+    except Exception as exc:
+        logger.debug("Entry-point plugin discovery failed: %s", exc)
+        return []
+
+    entries: list[tuple[str, str, str, str]] = []
+    for ep in group_eps:
+        version = ""
+        description = ""
+        dist = getattr(ep, "dist", None)
+        metadata = getattr(dist, "metadata", None)
+        if metadata is not None:
+            version = str(getattr(dist, "version", "") or "")
+            description = str(metadata.get("Summary", "") or "")
+        entries.append((ep.name, version, description, ep.value))
+    return entries
+
+
 def _plugin_status(name: str, enabled: set, disabled: set, key: str = "") -> str:
     """Return the user-facing activation state for a plugin name or key."""
     if name in disabled or key in disabled:

tests/hermes_cli/test_plugins_cmd_list.py

@@ -1,5 +1,6 @@
 import argparse
 import json
+from types import SimpleNamespace
 
 from hermes_cli import plugins_cmd
 
@@ -86,3 +87,74 @@ def test_cmd_list_json_output(monkeypatch, capsys):
             "source": "git",
         }
     ]
+
+
+def test_discover_all_plugins_includes_entrypoint_plugins(monkeypatch, tmp_path):
+    bundled_dir = tmp_path / "bundled"
+    user_dir = tmp_path / "user"
+    bundled_dir.mkdir()
+    user_dir.mkdir()
+
+    dist = SimpleNamespace(
+        version="0.1.0",
+        metadata={"Summary": "Karpathy-style LLM Wikis for Hermes"},
+    )
+    entry_point = SimpleNamespace(
+        name="wiki",
+        value="adapters.hermes.cli_plugin",
+        group="hermes_agent.plugins",
+        dist=dist,
+    )
+
+    monkeypatch.setattr(plugins_cmd, "_plugins_dir", lambda: user_dir)
+    monkeypatch.setattr(
+        "hermes_cli.plugins.get_bundled_plugins_dir",
+        lambda: bundled_dir,
+    )
+    monkeypatch.setattr(
+        plugins_cmd.importlib.metadata,
+        "entry_points",
+        lambda: [entry_point],
+    )
+
+    entries = plugins_cmd._discover_all_plugins()
+
+    assert entries == [
+        (
+            "wiki",
+            "0.1.0",
+            "Karpathy-style LLM Wikis for Hermes",
+            "entrypoint",
+            "adapters.hermes.cli_plugin",
+            "wiki",
+        )
+    ]
+
+
+def test_cmd_list_json_output_includes_entrypoint_source(monkeypatch, capsys):
+    entries = [
+        (
+            "wiki",
+            "0.1.0",
+            "Karpathy-style LLM Wikis for Hermes",
+            "entrypoint",
+            "adapters.hermes.cli_plugin",
+            "wiki",
+        )
+    ]
+    monkeypatch.setattr(plugins_cmd, "_discover_all_plugins", lambda: entries)
+    monkeypatch.setattr(plugins_cmd, "_get_enabled_set", lambda: {"wiki"})
+    monkeypatch.setattr(plugins_cmd, "_get_disabled_set", lambda: set())
+
+    plugins_cmd.cmd_list(_args(json=True))
+
+    payload = json.loads(capsys.readouterr().out)
+    assert payload == [
+        {
+            "name": "wiki",
+            "status": "enabled",
+            "version": "0.1.0",
+            "description": "Karpathy-style LLM Wikis for Hermes",
+            "source": "entrypoint",
+        }
+    ]