hermes-agent/gateway
kshitijk4poor cc8e5ec2af refactor(gateway): migrate Discord adapter to bundled plugin (full Teams parity)
First migration of an existing built-in platform adapter to the plugin
system established by IRC / Teams / LINE / Google Chat. Closes #24325;
advances the umbrella refactor in #3823.

Matches Teams' shape exactly — adapter under ``plugins/platforms/discord/``
with the standard ``__init__.py`` / ``adapter.py`` / ``plugin.yaml``
shell, ``register(ctx)`` entry point, **no back-compat shim** at the old
import path, and full parity for the four hooks Teams uses plus the
``apply_yaml_config_fn`` hook that landed in #25443 (the Discord plugin
is the first consumer of that hook):

* ``standalone_sender_fn`` — out-of-process cron delivery via REST API
* ``setup_fn`` — interactive ``hermes setup gateway`` wizard
* ``apply_yaml_config_fn`` — translate ``config.yaml`` ``discord:`` keys
  into ``DISCORD_*`` env vars (replaces the hardcoded block in
  ``gateway/config.py``)
* ``is_connected`` — declares connection state from ``DISCORD_BOT_TOKEN``
* ``check_fn`` — lazy-installs ``discord.py`` on demand
* plus ``allowed_users_env``, ``allow_all_env``, ``cron_deliver_env_var``,
  ``max_message_length``, ``emoji``, ``required_env``, ``install_hint``

* ``gateway/platforms/discord.py`` (5,101 LOC) →
  ``plugins/platforms/discord/adapter.py`` (git rename, R090).
* New ``plugins/platforms/discord/{__init__.py, plugin.yaml}`` with
  ``requires_env`` / ``optional_env`` declarations.
* Append ``register(ctx)`` block + new hook implementations
  (``_standalone_send``, ``interactive_setup``, ``_apply_yaml_config``,
  ``_clean_discord_user_ids``, ``_is_connected``, ``_build_adapter``,
  plus helpers ``_DISCORD_CHANNEL_TYPE_PROBE_CACHE`` etc.) to the
  adapter.

* Replace the ``Platform.DISCORD elif`` branch in
  ``GatewayRunner._create_adapter()`` (−9 LOC) with a generic post-creation
  hook (+6 LOC) in the registry path: any plugin adapter that declares a
  ``gateway_runner`` attribute now gets it auto-injected. Webhook's
  built-in branch is unchanged (it doesn't go through the registry path).

* Move ``_send_discord`` (190 LOC) and helpers
  (``_DISCORD_CHANNEL_TYPE_PROBE_CACHE``, ``_remember_channel_is_forum``,
  ``_probe_is_forum_cached``, ``_derive_forum_thread_name``) from
  ``tools/send_message_tool.py`` into the plugin as ``_standalone_send``.
* Wire via ``standalone_sender_fn=_standalone_send`` (Teams pattern; same
  gap fixed in #21804 for other plugin platforms).
* Replace the Discord ``elif`` in ``tools/send_message_tool.py``
  ``_send_to_platform`` with a 10-line registry-hook dispatch.
* Drop the ``DiscordAdapter`` import and the
  ``Platform.DISCORD: DiscordAdapter.MAX_MESSAGE_LENGTH`` ``_MAX_LENGTHS``
  entry — the registry's ``max_message_length=2000`` covers it.

* Move ``_setup_discord`` and ``_clean_discord_user_ids`` (68 LOC) from
  ``hermes_cli/setup.py`` into the plugin as ``interactive_setup``.
* Wire via ``setup_fn=interactive_setup``.  CLI helpers (``prompt``,
  ``print_info``, etc.) are lazy-imported so the plugin's module-load
  surface stays minimal.
* Remove ``"discord": _s._setup_discord`` from
  ``hermes_cli/gateway.py::_builtin_setup_fn``.
* Remove the entire 32-line ``_PLATFORMS["discord"]`` static dict entry —
  Discord's setup metadata is now discovered dynamically via
  ``_all_platforms()`` from the registry entry.

* Move the 59-line ``discord_cfg`` YAML→env bridge from
  ``gateway/config.py::load_gateway_config()`` into the plugin as
  ``_apply_yaml_config``.  Covers ``require_mention``,
  ``thread_require_mention``, ``free_response_channels``, ``auto_thread``,
  ``reactions``, ``ignored_channels``, ``allowed_channels``,
  ``no_thread_channels``, ``allow_mentions.{everyone,roles,users,
  replied_user}``, and ``reply_to_mode`` (including the YAML 1.1
  ``off``-as-False coercion and the ``extra.reply_to_mode`` fallback).
* Wire via ``apply_yaml_config_fn=_apply_yaml_config``.
* The hook runs BEFORE ``_apply_env_overrides`` and after the generic
  shared-key loop, exactly as documented in
  ``website/docs/developer-guide/adding-platform-adapters.md``.
* Behavior is preserved exactly — every assignment still uses
  ``not os.getenv(...)`` guards so env vars take precedence over YAML.

All 78 references to the old import path are rewritten — no back-compat
shim:

* 51 ``from gateway.platforms.discord import X`` →
  ``from plugins.platforms.discord.adapter import X``
* 5 ``import gateway.platforms.discord as discord_platform`` →
  ``import plugins.platforms.discord.adapter as discord_platform``
* 1 ``from gateway.platforms import discord as discord_mod`` →
  ``from plugins.platforms.discord import adapter as discord_mod``
* 21 ``mock.patch("gateway.platforms.discord.X")`` strings →
  ``mock.patch("plugins.platforms.discord.adapter.X")``
* 1 docstring reference in ``hermes_cli/commands.py``
* 1 import in ``tools/send_message_tool.py`` (now removed entirely)

The import-safety test in ``tests/gateway/test_discord_imports.py`` is
updated to purge the new canonical module name from ``sys.modules``.

**38 files changed, +621 / −473** — net positive due to the YAML hook
implementation (89 new LOC in the plugin trading for 59 deleted in core),
but every line moved has a clear plugin home now.  The git rename is
detected at R090 because the adapter gained ~340 LOC of moved-in hook
implementations (``_standalone_send`` + ``interactive_setup`` +
``_apply_yaml_config`` + helpers).

* All 568 Discord-specific tests pass across 25 ``test_discord_*.py``
  files plus voice/send/text-batching/reload-skills/stream-consumer/
  integration tests.
* All 147 tests in the YAML-touching subset
  (``test_discord_reply_mode``, ``test_discord_free_response``,
  ``test_discord_allowed_channels``, ``test_discord_allowed_mentions``,
  ``test_discord_channel_controls``, ``test_discord_reactions``,
  ``test_discord_thread_persistence``, ``test_runtime_footer``) pass —
  this is the strongest signal that the YAML→env hook behaves
  identically to the legacy block.
* Broader gateway/cron/integration sweep (1297 tests) introduces zero
  new failures vs ``main``.  Pre-existing failures in
  ``tests/gateway/test_tts_media_routing.py`` and
  ``tests/e2e/test_platform_commands.py`` reproduce identically on the
  unchanged ``main`` revision.
* Plugin discovery sanity check confirms Discord registers alongside the
  other four platform plugins:

    Registered platforms: ['discord', 'google_chat', 'irc', 'line', 'teams']

These Discord-shaped tendrils in core were **deliberately not moved** —
they are generic platform-registry concerns affecting every platform,
not Discord-specific:

* ``gateway/config.py:1205`` ``DISCORD_BOT_TOKEN → config.token`` env
  enablement — same shape Telegram has.  The existing
  ``env_enablement_fn`` registry hook only seeds ``extra``, not
  ``.token``, so it can't replace this without an adapter refactor to
  read from ``extra["bot_token"]``.
* ``gateway/run.py`` voice-mode hooks
  (``self.adapters.get(Platform.DISCORD)`` for
  ``start_voice_mode``/``stop_voice_mode``), role-based auth,
  ``DISCORD_ALLOW_BOTS`` branch in ``_is_user_authorized``,
  ``_UPDATE_ALLOWED_PLATFORMS`` frozenset, and the per-platform
  allowlist maps — generic platform-registry concerns.
* ``Platform.DISCORD`` enum literal — stable identifier used as dict
  keys throughout the codebase; removing it is a separate refactor with
  no real benefit.
* ``tools/discord_tool.py`` and ``tools/environments/local.py`` —
  first-class agent tools and env-passthrough config, neither is the
  gateway adapter.

Each of these is worth its own scoping issue when the time comes.
2026-05-22 14:21:41 -07:00
..
assets fix: improve telegram topic mode setup 2026-05-04 12:07:17 -07:00
builtin_hooks remove: BOOT.md built-in hook (#17093) 2026-04-28 09:50:27 -07:00
platforms refactor(gateway): migrate Discord adapter to bundled plugin (full Teams parity) 2026-05-22 14:21:41 -07:00
__init__.py docs(gateway): mention Weixin in gateway help and docstrings 2026-05-12 17:08:51 -07:00
channel_directory.py feat: complete plugin platform parity — all 12 integration points 2026-04-29 21:56:51 -07:00
config.py refactor(gateway): migrate Discord adapter to bundled plugin (full Teams parity) 2026-05-22 14:21:41 -07:00
delivery.py fix(gateway): preserve case-sensitive chat IDs in DeliveryTarget.parse 2026-05-01 14:01:26 -07:00
display_config.py chore: ruff auto-fix PLR6201 — tuple → set in membership tests (#23937) 2026-05-11 11:13:25 -07:00
hooks.py fix(plugins): register dynamically-loaded modules in sys.modules before exec 2026-04-29 23:34:35 -07:00
memory_monitor.py Port from cline/cline#10343: periodic gateway memory logging (#27102) 2026-05-16 12:55:23 -07:00
mirror.py refactor(gateway): drop _append_to_jsonl from mirror 2026-05-20 13:00:57 -07:00
pairing.py fix(pairing): handle legacy plaintext pending entries during upgrade 2026-05-22 04:11:49 -07:00
platform_registry.py refactor(plugins): add apply_yaml_config_fn registry hook 2026-05-13 22:20:30 -07:00
restart.py fix(gateway): address restart review feedback 2026-04-10 21:18:34 -07:00
run.py refactor(gateway): migrate Discord adapter to bundled plugin (full Teams parity) 2026-05-22 14:21:41 -07:00
runtime_footer.py feat(gateway): opt-in runtime-metadata footer on final replies (#17026) 2026-04-28 06:50:04 -07:00
session.py feat(state.db): persist platform_message_id; restore yuanbao exact-id recall 2026-05-20 13:00:57 -07:00
session_context.py fix(gateway): route background-process notifications into Telegram DM topics 2026-05-18 22:03:12 -07:00
shutdown_forensics.py chore: ruff auto-fixes — collapsible-else-if, if-stmt-min-max, dict.fromkeys (#23926) 2026-05-11 11:03:29 -07:00
slash_access.py feat(gateway): per-platform admin/user split for slash commands (salvage of #4443) (#23373) 2026-05-10 12:33:54 -07:00
status.py fix: gateway PID detection fails on Windows (two issues) 2026-05-13 23:10:57 -07:00
sticker_cache.py fix: guard yaml.safe_load, flock unlock, TOCTOU races, and atomic writes 2026-05-19 00:12:41 -07:00
stream_consumer.py fix(telegram): preserve topic metadata on overflow edits 2026-05-18 22:40:03 -07:00
whatsapp_identity.py fix(whatsapp_identity): pin identifier regex to ASCII, clarify it's defense-in-depth 2026-04-26 20:48:31 -07:00