fix(telegram): escape chunk indicators in MarkdownV2 - #1478
Merged
Conversation
This was referenced Mar 16, 2026
angelburgosrosado
pushed a commit
to angelburgosrosado/hermes-agent
that referenced
this pull request
Apr 27, 2026
02356abc
pushed a commit
to 02356abc/hermes-agent
that referenced
this pull request
May 14, 2026
waefrebeorn
pushed a commit
to waefrebeorn/slermes
that referenced
this pull request
Jul 2, 2026
This was referenced Jul 30, 2026
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary
Why this approach
The reported breakage is real, but the root cause is narrow:
truncate_message()appends a raw(N/M)suffix after the message has already been converted to MarkdownV2. Telegram rejects the unescaped parentheses, then the adapter falls back to plain text.Escaping just that suffix fixes the bug with a much smaller blast radius than rewriting the Telegram formatter around HTML mode.
Test plan
python -m py_compile gateway/platforms/telegram.py tests/gateway/test_telegram_format.pypython -m pytest tests/gateway/test_telegram_format.py -n0 -qFixes #1456
Supersedes #1457