Bug

The stripMarkdown function used in BlueBubbles outbound text processing (extensions/bluebubbles/src/send.ts) strips single underscores that appear inside words, treating them as markdown italic delimiters when they are not.

Steps to Reproduce

1. Send a message containing underscores between words, e.g. here_is_a_message_with_underscores
2. The recipient sees hereisamessagewithunderscores — all underscores stripped

Expected Behavior

Underscores inside words (no surrounding whitespace) should be preserved. Only underscores that look like actual markdown italic formatting (_some text_) should be stripped.

Actual Behavior

The regex on line 43346 of the reply bundle:

result.replace(/(?<!_)_(?!_)(.+?)(?<!_)_(?!_)/g, "$1");

Matches _is_, _a_, _message_, etc. inside here_is_a_message_with_underscores and strips the underscores.

Root Cause

stripMarkdown is imported from openclaw/plugin-sdk/bluebubbles and called unconditionally in send.ts line 371. There is no config option to disable it.

Suggested Fix

The italic underscore regex should require word boundaries or whitespace around the underscore delimiters, matching how CommonMark spec handles intra-word underscores. For example:

// Only match _text_ when underscores are at word boundaries
result.replace(/(?<=\s|^)_(?!_)(.+?)(?<!_)_(?=\s|$|[.,;:!?)])/g, "$1");

Alternatively, consider adding a channels.bluebubbles.markdown.strip config toggle (default: true for backwards compatibility) so operators can disable stripping entirely for channels like iMessage that render plain text anyway.

Environment

• OpenClaw 2026.3.13
• Channel: BlueBubbles (iMessage)
• macOS