hermes-agent/tests/gateway/test_slack_mention_humanization.py
Ben 5d747a91c4 fix(slack): humanize inbound user mentions + ground bot identity
Slack delivers user mentions as opaque IDs (<@U123>). The agent had no
way to tell one participant from another — or from itself — so it could
misread a mention of a human as a self-mention and answer messages
addressed to that person (the "bot thinks it's @someone-else" bug).

Two cooperating fixes:
- _humanize_user_mentions rewrites remaining <@UID> tokens (the bot's
  own mention is stripped earlier) to @DisplayName in the trigger text
  and reply_to_text — the Slack equivalent of Discord's clean_content.
  Handles the labelled <@UID|handle> form; unresolvable IDs fall back
  to the raw ID.
- _build_identity_prompt injects an ephemeral per-turn system-prompt
  line via the channel_prompt seam (applied at API-call time, never
  persisted — prompt caching preserved) naming the bot's own workspace
  handle (per-team in multi-workspace installs) so the agent has a
  positive "that's me" anchor.

Salvaged from #55340 by @benbarclay, rebased over the workspace-scoped
user-name cache (team_id-aware resolution) on main.
2026-07-22 07:22:55 -07:00

158 lines
5.7 KiB
Python

"""
Tests for Slack inbound mention humanization + bot identity grounding.
Slack delivers user mentions as opaque IDs (``<@U123>``). Passing those to the
agent raw leaves it unable to tell one participant from another — or from
itself — so it can misread a mention of a human as a self-mention and reply to
messages addressed to that person (the reported "bot thinks it's @someone-else"
bug). Two cooperating fixes:
* ``_humanize_user_mentions`` rewrites ``<@UID>`` → ``@DisplayName`` (the
Slack equivalent of Discord's ``clean_content``).
* ``_build_identity_prompt`` returns an ephemeral system-prompt line naming
the bot's own Slack handle so the agent has a positive "that's me" anchor.
"""
import sys
from unittest.mock import MagicMock
import pytest
# ---------------------------------------------------------------------------
# Mock slack-bolt if not installed (same pattern as test_slack_mention.py)
# ---------------------------------------------------------------------------
def _ensure_slack_mock():
if "slack_bolt" in sys.modules and hasattr(sys.modules["slack_bolt"], "__file__"):
return
slack_bolt = MagicMock()
slack_bolt.async_app.AsyncApp = MagicMock
slack_bolt.adapter.socket_mode.async_handler.AsyncSocketModeHandler = MagicMock
slack_sdk = MagicMock()
slack_sdk.web.async_client.AsyncWebClient = MagicMock
for name, mod in [
("slack_bolt", slack_bolt),
("slack_bolt.async_app", slack_bolt.async_app),
("slack_bolt.adapter", slack_bolt.adapter),
("slack_bolt.adapter.socket_mode", slack_bolt.adapter.socket_mode),
("slack_bolt.adapter.socket_mode.async_handler",
slack_bolt.adapter.socket_mode.async_handler),
("slack_sdk", slack_sdk),
("slack_sdk.web", slack_sdk.web),
("slack_sdk.web.async_client", slack_sdk.web.async_client),
]:
sys.modules.setdefault(name, mod)
sys.modules.setdefault("aiohttp", MagicMock())
_ensure_slack_mock()
import plugins.platforms.slack.adapter as _slack_mod # noqa: E402
_slack_mod.SLACK_AVAILABLE = True
from plugins.platforms.slack.adapter import SlackAdapter # noqa: E402
def _make_adapter():
# object.__new__ skips __init__ (heavy setup) — established slack-test pattern.
return object.__new__(SlackAdapter)
def _adapter_with_names(names):
"""Adapter whose _resolve_user_name returns from a fixed UID→name map."""
adapter = _make_adapter()
async def _resolve(user_id, chat_id="", team_id=""):
return names.get(user_id, user_id)
adapter._resolve_user_name = _resolve # type: ignore[assignment]
return adapter
# ----- _humanize_user_mentions -------------------------------------------------
@pytest.mark.asyncio
async def test_humanizes_single_mention():
adapter = _adapter_with_names({"U07ALICE": "Alice Example"})
out = await adapter._humanize_user_mentions(
"<@U07ALICE> I think thread is prob the right default", chat_id="C1"
)
assert out == "@Alice Example I think thread is prob the right default"
assert "<@" not in out
@pytest.mark.asyncio
async def test_humanizes_multiple_distinct_mentions():
adapter = _adapter_with_names(
{"U07ALICE": "Alice Example", "U07BOB": "Bob Example"}
)
out = await adapter._humanize_user_mentions(
"hey <@U07ALICE> and <@U07BOB>", chat_id="C1"
)
assert out == "hey @Alice Example and @Bob Example"
@pytest.mark.asyncio
async def test_handles_labelled_mention_form():
# Slack sometimes sends <@UID|handle>; only the ID drives resolution.
adapter = _adapter_with_names({"U07ALICE": "Alice Example"})
out = await adapter._humanize_user_mentions("<@U07ALICE|alice> hi", chat_id="C1")
assert out == "@Alice Example hi"
@pytest.mark.asyncio
async def test_repeated_mention_all_replaced():
adapter = _adapter_with_names({"U07ALICE": "Alice Example"})
out = await adapter._humanize_user_mentions(
"<@U07ALICE> ping <@U07ALICE>", chat_id="C1"
)
assert out == "@Alice Example ping @Alice Example"
@pytest.mark.asyncio
async def test_unresolvable_mention_falls_back_to_id():
# Resolution returns the bare ID; keep the message intact, don't empty it.
adapter = _adapter_with_names({})
out = await adapter._humanize_user_mentions("<@U07GHOST> hi", chat_id="C1")
assert out == "@U07GHOST hi"
@pytest.mark.asyncio
async def test_no_mentions_returns_unchanged():
adapter = _adapter_with_names({"U07ALICE": "Alice Example"})
out = await adapter._humanize_user_mentions("plain text, no pings", chat_id="C1")
assert out == "plain text, no pings"
# ----- _build_identity_prompt --------------------------------------------------
def test_identity_prompt_names_the_bot():
adapter = _make_adapter()
adapter._bot_display_name = "TestBot"
adapter._team_bot_names = {}
prompt = adapter._build_identity_prompt(team_id="T1")
assert "@TestBot" in prompt
# Must instruct that another participant's mention is not a self-mention.
assert "not a mention of you" in prompt
def test_identity_prompt_prefers_per_team_name():
adapter = _make_adapter()
adapter._bot_display_name = "PrimaryBot"
adapter._team_bot_names = {"T2": "WorkspaceTwoBot"}
prompt = adapter._build_identity_prompt(team_id="T2")
assert "@WorkspaceTwoBot" in prompt
assert "PrimaryBot" not in prompt
def test_identity_prompt_empty_when_name_unknown():
# Before connect (no name resolved) the prompt must be empty, not a
# half-formed line — callers skip injecting an empty string.
adapter = _make_adapter()
adapter._bot_display_name = None
adapter._team_bot_names = {}
assert adapter._build_identity_prompt(team_id="T1") == ""