Re-authored against current main from PR #10388 by @wilsen0. The
original branch is 3800+ commits stale and could not be cherry-picked
without reverting unrelated work; this change carries only the perf
intent forward.
Tuning summary
==============
Text-batch ingress (gateway/platforms/telegram.py):
- HERMES_TELEGRAM_TEXT_BATCH_DELAY_SECONDS default 0.6 -> 0.3
- HERMES_TELEGRAM_TEXT_BATCH_SPLIT_DELAY_SECONDS default 2.0 -> 1.0
- Adaptive fast-path tiers in _flush_text_batch:
total <= 320 cp -> min(cap, 0.18)
total <= 1024 cp -> min(cap, 0.24)
else -> cap
A single short reply now reaches the agent in ~180ms instead of
600ms. Tier constants compose with the configured cap via min()
so an operator who tightens HERMES_TELEGRAM_TEXT_BATCH_DELAY_SECONDS
below 0.18 still wins on every tier.
- _env_float_clamped helper replaces bare float(os.getenv()).
Rejects NaN / Inf, applies optional min/max bounds. Used for
text-batch + media-batch knobs. Prevents asyncio.sleep(NaN)
crashes when an operator typos an env var.
Stream cadence (gateway/config.py + stream_consumer.py):
- StreamingConfig.edit_interval default 1.0s -> 0.8s
- StreamingConfig.buffer_threshold default 40 -> 24 chars
- DEFAULT_STREAMING_EDIT_INTERVAL / BUFFER_THRESHOLD / CURSOR are now
a single source of truth. StreamConsumerConfig imports them
instead of duplicating the literals; the prior dual-source drift
is fixed.
Tool progress (gateway/display_config.py):
- Telegram default tool_progress 'all' -> 'new'. Inside
Telegram's ~1 edit/s flood envelope the 'all' default would
accumulate edit pressure on busy chats; 'new' shows only the
leading bubble per tool batch and feels less spammy.
- Slack tier_low override (tool_progress='off') is preserved.
Composition with native draft streaming (#23512)
================================================
The mid-stream cadence (edit_interval, buffer_threshold) gates BOTH
the draft path (send_draft) and the edit path (edit_message), so the
tighter cadence helps native draft as much as edit-based. The
text-batch fast-path applies before the consumer starts, so it speeds
up the first-token latency on every transport. No conflict.
Stale-base avoidance
====================
Re-authored from scratch rather than cherry-picked. Dropped from the
original branch:
- Unrelated d2f043f9c 'fix(anthropic): preserve third-party thinking
continuity' commit
- boot_md.py builtin gateway hook (unrelated)
- Reverted Slack tool_progress='off' (#14663) restoration
- Reverted Platform plugin discovery, MSGRAPH_WEBHOOK, YUANBAO
members deletion
- 2300+ lines of run.py base-skew noise
Tests
=====
New tests/gateway/test_telegram_text_batch_perf.py:
- 7 tests for _env_float_clamped (NaN, Inf, garbage, bounds).
- 4 tests for the adaptive-tier composition rules.
Updated tests/gateway/test_display_config.py:
- test_platform_default_when_no_user_config: 'all' -> 'new' for
Telegram, with comment.
- test_high_tier_platforms: split into Telegram-overrides-to-new
and Discord-stays-all assertions.
Closes#10388.
Co-authored-by: wilsen0 <132184373+wilsen0@users.noreply.github.com>
wilsen0
ac95b8cdbe