From 8490f2f53468bfb1467d7988f91d68e785656f49 Mon Sep 17 00:00:00 2001
From: Ye Jie Kai <15988096971@163.com>
Date: Wed, 25 Mar 2026 15:15:41 +0800
Subject: [PATCH] feat(agents): use PyYAML for SKILL.md frontmatter parsing

- Replace manual line-by-line parsing with yaml.safe_load()
- Add proper YAML error handling with try/except
- Add pyyaml>=6.0 to requirements.txt

This improves robustness when parsing SKILL.md frontmatter with
complex YAML structures (nested objects, lists, multi-line strings).
---
 agents/s05_skill_loading.py | 15 +++++++--------
 requirements.txt            |  1 +
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/agents/s05_skill_loading.py b/agents/s05_skill_loading.py
index 07e580e82..dd94f353f 100644
--- a/agents/s05_skill_loading.py
+++ b/agents/s05_skill_loading.py
@@ -39,7 +39,7 @@
 import re
 import subprocess
 from pathlib import Path
-
+import yaml
 from anthropic import Anthropic
 from dotenv import load_dotenv
 
@@ -71,16 +71,15 @@ def _load_all(self):
             self.skills[name] = {"meta": meta, "body": body, "path": str(f)}
 
     def _parse_frontmatter(self, text: str) -> tuple:
-        """Parse YAML frontmatter between --- delimiters."""
         match = re.match(r"^---\n(.*?)\n---\n(.*)", text, re.DOTALL)
         if not match:
             return {}, text
-        meta = {}
-        for line in match.group(1).strip().splitlines():
-            if ":" in line:
-                key, val = line.split(":", 1)
-                meta[key.strip()] = val.strip()
-        return meta, match.group(2).strip()
+        try:
+            meta = yaml.safe_load(match.group(1))
+        except yaml.YAMLError:
+            meta = {}
+        return meta or {}, match.group(2).strip()
+
 
     def get_descriptions(self) -> str:
         """Layer 1: short descriptions for the system prompt."""
diff --git a/requirements.txt b/requirements.txt
index 55f896d40..c27dfcc04 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,3 @@
 anthropic>=0.25.0
 python-dotenv>=1.0.0
+pyyaml>=6.0
\ No newline at end of file