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fix(plugins): surface category-namespaced plugins in hermes plugins list

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`_discover_all_plugins()` in plugins_cmd.py did a flat scan of the
bundled and user plugin directories — only direct children with a
plugin.yaml were surfaced. Category directories like `observability/`,
`image_gen/`, `platforms/`, `model-providers/`, `web/`, and `video_gen/`
have no plugin.yaml of their own, so their nested plugins
(`observability/langfuse`, `image_gen/openai`, etc.) never appeared in
`hermes plugins list` or the interactive `hermes plugins` UI — even
though the runtime loader (`PluginManager._scan_directory_level`)
discovers them correctly and they do load at runtime.

This broke the documented promise that bundled plugins appear in
`hermes plugins list` and the interactive UI before being enabled,
and made it look like `observability/langfuse` didn't exist.

Refactor `_discover_all_plugins()` to mirror the loader's recursion
(depth cap = 2, same skip set, user overrides bundled on key collision).
Return the path-derived registry key (e.g. `observability/langfuse`) as
the displayed name, matching what the user passes to
`hermes plugins enable …` / writes under `plugins.enabled` in
config.yaml.

Also clarify the plugins docs: spell out that sub-category plugins
surface by their `<category>/<plugin>` key in `hermes plugins list` /
interactive UI, add an `observability/langfuse` example to the command
reference, and include a nested entry in the interactive-UI mock.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Guillaume Meyer 2026-05-16 22:55:28 +00:00 • committed by Teknium
parent 29b1bd0e20
commit 9b82586c6b
2 changed files with 70 additions and 40 deletions
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24
website/docs/user-guide/features/plugins.md
View file

@ -142,6 +142,8 @@ Within each source, Hermes also recognizes sub-category directories that route p
User plugins at `~/.hermes/plugins/model-providers/<name>/` and `~/.hermes/plugins/memory/<name>/` override bundled plugins of the same name — last-writer-wins in `register_provider()` / `register_memory_provider()`. Drop a directory in, and it replaces the built-in without any repo edits.
Sub-category plugins surface in `hermes plugins list` and the interactive `hermes plugins` UI under their **path-derived key** — e.g. `observability/langfuse`, `image_gen/openai`, `platforms/teams`. That key (not the bare manifest `name:`) is the value you pass to `hermes plugins enable …` / `disable …` and the string to add under `plugins.enabled` in `config.yaml`.
## Plugins are opt-in (with a few exceptions)
**General plugins and user-installed backends are disabled by default** — discovery finds them (so they show up in `hermes plugins` and `/plugins`), but nothing with hooks or tools loads until you add the plugin's name to `plugins.enabled` in `~/.hermes/config.yaml`. This stops third-party code from running without your explicit consent.
@ -263,17 +265,20 @@ Declarative plugins are symlinked with a `nix-managed-` prefix — they coexist
## Managing plugins
```bash
hermes plugins # unified interactive UI
hermes plugins list # table: enabled / disabled / not enabled
hermes plugins install user/repo # install from Git, then prompt Enable? [y/N]
hermes plugins install user/repo --enable # install AND enable (no prompt)
hermes plugins install user/repo --no-enable # install but leave disabled (no prompt)
hermes plugins update my-plugin # pull latest
hermes plugins remove my-plugin # uninstall
hermes plugins enable my-plugin # add to allow-list
hermes plugins disable my-plugin # remove from allow-list + add to disabled
hermes plugins # unified interactive UI
hermes plugins list # table: enabled / disabled / not enabled
hermes plugins install user/repo # install from Git, then prompt Enable? [y/N]
hermes plugins install user/repo --enable # install AND enable (no prompt)
hermes plugins install user/repo --no-enable # install but leave disabled (no prompt)
hermes plugins update my-plugin # pull latest
hermes plugins remove my-plugin # uninstall
hermes plugins enable my-plugin # add to allow-list (flat plugin)
hermes plugins enable observability/langfuse # add to allow-list (sub-category plugin)
hermes plugins disable my-plugin # remove from allow-list + add to disabled
```
For plugins under a sub-category directory (e.g. `plugins/observability/langfuse/`, `plugins/image_gen/openai/`), use the full `<category>/<plugin>` key — that's exactly what `hermes plugins list` shows in the **Name** column.
### Interactive UI
Running `hermes plugins` with no arguments opens a composite interactive screen:
@ -286,6 +291,7 @@ Plugins
→ [✓] my-tool-plugin — Custom search tool
[ ] webhook-notifier — Event hooks
[ ] disk-cleanup — Auto-cleanup of ephemeral files [bundled]
[ ] observability/langfuse — Trace turns / LLM calls / tools to Langfuse [bundled]
Provider Plugins
Memory Provider ▸ honcho