feat(gateway): surface natural mid-turn assistant messages in chat platforms

Add display.interim_assistant_messages config (enabled by default) that
forwards completed assistant commentary between tool calls to the user
as separate chat messages. Models already emit useful status text like
'I'll inspect the repo first.' — this surfaces it on Telegram, Discord,
and other messaging platforms instead of swallowing it.

Independent from tool_progress and gateway streaming. Disabled for
webhooks. Uses GatewayStreamConsumer when available, falls back to
direct adapter send. Tracks response_previewed to prevent double-delivery
when interim message matches the final response.

Also fixes: cursor not stripped from fallback prefix in stream consumer
(affected continuation calculation on no-edit platforms like Signal).

Cherry-picked from PR #7885 by asheriif, default changed to enabled.
Fixes #5016
This commit is contained in:
asheriif 2026-04-11 16:03:52 -07:00 committed by Teknium
parent 758c4ad1ef
commit a23379282f
No known key found for this signature in database
11 changed files with 652 additions and 56 deletions

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@ -68,6 +68,7 @@ class TestLoadConfigDefaults:
assert "max_turns" not in config
assert "terminal" in config
assert config["terminal"]["backend"] == "local"
assert config["display"]["interim_assistant_messages"] is True
def test_legacy_root_level_max_turns_migrates_to_agent_config(self, tmp_path):
with patch.dict(os.environ, {"HERMES_HOME": str(tmp_path)}):
@ -421,3 +422,25 @@ class TestAnthropicTokenMigration:
}):
migrate_config(interactive=False, quiet=True)
assert load_env().get("ANTHROPIC_TOKEN") == "current-token"
class TestInterimAssistantMessageConfig:
"""Test the explicit gateway interim-message config gate."""
def test_default_config_enables_interim_assistant_messages(self):
assert DEFAULT_CONFIG["display"]["interim_assistant_messages"] is True
def test_migrate_to_v15_adds_interim_assistant_message_gate(self, tmp_path):
config_path = tmp_path / "config.yaml"
config_path.write_text(
yaml.safe_dump({"_config_version": 14, "display": {"tool_progress": "off"}}),
encoding="utf-8",
)
with patch.dict(os.environ, {"HERMES_HOME": str(tmp_path)}):
migrate_config(interactive=False, quiet=True)
raw = yaml.safe_load(config_path.read_text(encoding="utf-8"))
assert raw["_config_version"] == 15
assert raw["display"]["tool_progress"] == "off"
assert raw["display"]["interim_assistant_messages"] is True