hermes - 💡(How to fix) Fix [Bug] extract_media: Markdown bold ** in MEDIA paths causes file-not-found on all platforms

Bug Description

When an agent generates a file (e.g. a .docx report) and the LLM responds to the user, it often wraps the file path in Markdown bold syntax: **MEDIA:/path/to/file.docx**.

The extract_media() function in gateway/platforms/base.py uses a regex that captures the path group, but the subsequent rstrip() does NOT strip trailing asterisks (*). This causes the literal ** characters to remain in the extracted path, resulting in a file-not-found error.

Root Cause

File: gateway/platforms/base.py Line: ~2020

Current code:

path = path.lstrip("`\"'").rstrip("`\"',.;:)}")

The rstrip character set does not include *, so when the LLM outputs **MEDIA:/path/to/file.docx**, the captured path becomes /path/to/file.docx** — a non-existent file.

Reproduction

1. Use any platform that inherits BasePlatformAdapter.extract_media() (QQ, WeChat, Telegram, etc.)
2. Have a Skill generate a document file (e.g. .docx, .xlsx)
3. The LLM responds with **MEDIA:/临时/报告.docx** (Markdown bold wrapping the path)
4. The extracted path becomes /临时/报告.docx** — file not found
5. Send fails with error: Media file not found: /临时/报告.docx**

Affected Platforms

All platforms that use BasePlatformAdapter.extract_media():

• QQ (qqbot)
• WeChat (weixin)
• Telegram
• And likely all other platform adapters

Why This Happens

The PLATFORM_HINTS for QQ/WeChat platforms encourage Markdown formatting:

"QQ supports markdown formatting and emoji"

This leads LLMs (especially Chinese-language models) to naturally bold paths using **...**. The extract_media() regex correctly identifies MEDIA:/path/file.docx but the trailing ** from the bold syntax leaks into the path group because rstrip does not strip *.

Suggested Fix

Add * to the rstrip character set in base.py line ~2020:

path = path.lstrip("`\"'").rstrip("`\"',.;:)}*")

This is a one-character change with minimal risk — * is extremely rare in valid file paths.

Impact

• Severity: Medium — prevents file delivery on all platform adapters
• Frequency: Any time the LLM uses bold syntax around a MEDIA path
• Workaround: Manually edit base.py after each Hermes update to add * to rstrip

Related Issues

• #21527 — Telegram media path escaping broken (similar regex issue)
• #1803 — MEDIA: tag fails to send files
• #22492 — qqbot: add extensions to extract_media() regex