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
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11 changed files with 652 additions and 56 deletions

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@ -774,6 +774,11 @@ display:
# Toggle at runtime with /verbose in the CLI
tool_progress: all
# Gateway-only natural mid-turn assistant updates.
# When true, completed assistant status messages are sent as separate chat
# messages. This is independent of tool_progress and gateway streaming.
interim_assistant_messages: true
# What Enter does when Hermes is already busy in the CLI.
# interrupt: Interrupt the current run and redirect Hermes (default)
# queue: Queue your message for the next turn