The agent needs to perceive times in the user's timezone, not UTC.
Dropping this in the v1→v2 port produced a class of bugs where the agent
would schedule tasks for the wrong hour, suggest dinner at midnight, etc.
This restores v1 parity.
Container side:
- New container/agent-runner/src/timezone.ts mirrors src/timezone.ts with
isValidTimezone / resolveTimezone / formatLocalTime, plus:
* TIMEZONE constant resolved at load from process.env.TZ (host sets this
from src/container-runner.ts:254)
* parseZonedToUtc(input, tz) — treats a naive ISO as wall-clock time in
`tz`, returns the corresponding UTC Date. Strings with Z or offset
are passed through.
- formatter.ts:
* formatMessages() now prepends <context timezone="IANA"/>\n — matches
v1 src/v1/router.ts:20-22
* formatSingleChat uses formatLocalTime(ts, TIMEZONE) instead of a
home-rolled HH:MM 24h formatter → outputs like "Jun 15, 2026, 8:00 AM"
* reply_to="<id>" attribute + <quoted_message from="X">Y</quoted_message>
element — matches v1 format exactly; old <reply-to/> shape is gone
* stripInternalTags() exported for the dispatch path to reuse
- poll-loop.ts uses the exported stripInternalTags() instead of inline regex.
- mcp-tools/scheduling.ts:
* schedule_task/update_task descriptions now explicitly document that
processAfter accepts either UTC or naive local time (interpreted in
the user's TZ from the context header)
* handlers normalize through parseZonedToUtc() and store a UTC ISO
Host side:
- src/modules/scheduling/recurrence.ts passes { tz: TIMEZONE } to
CronExpressionParser.parse. Without this, "0 9 * * *" fires at 09:00
UTC instead of 09:00 user-local — this was the v1 behavior
(src/v1/task-scheduler.ts:20-49).
Tests:
- container/agent-runner/src/timezone.test.ts — mirror of src/timezone.test.ts
+ new parseZonedToUtc cases
- container/agent-runner/src/formatter.test.ts — context header, reply_to,
quoted_message, XML escaping, stripInternalTags (ported from v1
formatting.test.ts)
- src/modules/scheduling/recurrence.test.ts — cron TZ respected, completed
rows only cloned when recurrence is set
Ref: docs/v1-vs-v2/ACTION-ITEMS.md item 18 + timezone-formatting-v1-recreation.md
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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