fix: use UTF-8 for text file operations

agents/s02_tool_use.py

@@ -61,7 +61,7 @@ def run_bash(command: str) -> str:
 
 def run_read(path: str, limit: int = None) -> str:
     try:
-        text = safe_path(path).read_text()
+        text = safe_path(path).read_text(encoding="utf-8")
         lines = text.splitlines()
         if limit and limit < len(lines):
             lines = lines[:limit] + [f"... ({len(lines) - limit} more lines)"]
@@ -74,7 +74,7 @@ def run_write(path: str, content: str) -> str:
     try:
         fp = safe_path(path)
         fp.parent.mkdir(parents=True, exist_ok=True)
-        fp.write_text(content)
+        fp.write_text(content, encoding="utf-8")
         return f"Wrote {len(content)} bytes to {path}"
     except Exception as e:
         return f"Error: {e}"
@@ -83,10 +83,10 @@ def run_write(path: str, content: str) -> str:
 def run_edit(path: str, old_text: str, new_text: str) -> str:
     try:
         fp = safe_path(path)
-        content = fp.read_text()
+        content = fp.read_text(encoding="utf-8")
         if old_text not in content:
             return f"Error: Text not found in {path}"
-        fp.write_text(content.replace(old_text, new_text, 1))
+        fp.write_text(content.replace(old_text, new_text, 1), encoding="utf-8")
         return f"Edited {path}"
     except Exception as e:
         return f"Error: {e}"

agents/s03_todo_write.py

@@ -110,7 +110,7 @@ def run_bash(command: str) -> str:
 
 def run_read(path: str, limit: int = None) -> str:
     try:
-        lines = safe_path(path).read_text().splitlines()
+        lines = safe_path(path).read_text(encoding="utf-8").splitlines()
         if limit and limit < len(lines):
             lines = lines[:limit] + [f"... ({len(lines) - limit} more)"]
         return "\n".join(lines)[:50000]
@@ -121,18 +121,18 @@ def run_write(path: str, content: str) -> str:
     try:
         fp = safe_path(path)
         fp.parent.mkdir(parents=True, exist_ok=True)
-        fp.write_text(content)
+        fp.write_text(content, encoding="utf-8")
         return f"Wrote {len(content)} bytes"
     except Exception as e:
         return f"Error: {e}"
 
 def run_edit(path: str, old_text: str, new_text: str) -> str:
     try:
         fp = safe_path(path)
-        content = fp.read_text()
+        content = fp.read_text(encoding="utf-8")
         if old_text not in content:
             return f"Error: Text not found in {path}"
-        fp.write_text(content.replace(old_text, new_text, 1))
+        fp.write_text(content.replace(old_text, new_text, 1), encoding="utf-8")
         return f"Edited {path}"
     except Exception as e:
         return f"Error: {e}"

agents/s04_subagent.py

@@ -66,7 +66,7 @@ def run_bash(command: str) -> str:
 
 def run_read(path: str, limit: int = None) -> str:
     try:
-        lines = safe_path(path).read_text().splitlines()
+        lines = safe_path(path).read_text(encoding="utf-8").splitlines()
         if limit and limit < len(lines):
             lines = lines[:limit] + [f"... ({len(lines) - limit} more)"]
         return "\n".join(lines)[:50000]
@@ -77,18 +77,18 @@ def run_write(path: str, content: str) -> str:
     try:
         fp = safe_path(path)
         fp.parent.mkdir(parents=True, exist_ok=True)
-        fp.write_text(content)
+        fp.write_text(content, encoding="utf-8")
         return f"Wrote {len(content)} bytes"
     except Exception as e:
         return f"Error: {e}"
 
 def run_edit(path: str, old_text: str, new_text: str) -> str:
     try:
         fp = safe_path(path)
-        content = fp.read_text()
+        content = fp.read_text(encoding="utf-8")
         if old_text not in content:
             return f"Error: Text not found in {path}"
-        fp.write_text(content.replace(old_text, new_text, 1))
+        fp.write_text(content.replace(old_text, new_text, 1), encoding="utf-8")
         return f"Edited {path}"
     except Exception as e:
         return f"Error: {e}"

agents/s05_skill_loading.py

@@ -66,7 +66,7 @@ def _load_all(self):
         if not self.skills_dir.exists():
             return
         for f in sorted(self.skills_dir.rglob("SKILL.md")):
-            text = f.read_text()
+            text = f.read_text(encoding="utf-8")
             meta, body = self._parse_frontmatter(text)
             name = meta.get("name", f.parent.name)
             self.skills[name] = {"meta": meta, "body": body, "path": str(f)}
@@ -135,7 +135,7 @@ def run_bash(command: str) -> str:
 
 def run_read(path: str, limit: int = None) -> str:
     try:
-        lines = safe_path(path).read_text().splitlines()
+        lines = safe_path(path).read_text(encoding="utf-8").splitlines()
         if limit and limit < len(lines):
             lines = lines[:limit] + [f"... ({len(lines) - limit} more)"]
         return "\n".join(lines)[:50000]
@@ -146,18 +146,18 @@ def run_write(path: str, content: str) -> str:
     try:
         fp = safe_path(path)
         fp.parent.mkdir(parents=True, exist_ok=True)
-        fp.write_text(content)
+        fp.write_text(content, encoding="utf-8")
         return f"Wrote {len(content)} bytes"
     except Exception as e:
         return f"Error: {e}"
 
 def run_edit(path: str, old_text: str, new_text: str) -> str:
     try:
         fp = safe_path(path)
-        content = fp.read_text()
+        content = fp.read_text(encoding="utf-8")
         if old_text not in content:
             return f"Error: Text not found in {path}"
-        fp.write_text(content.replace(old_text, new_text, 1))
+        fp.write_text(content.replace(old_text, new_text, 1), encoding="utf-8")
         return f"Edited {path}"
     except Exception as e:
         return f"Error: {e}"

agents/s06_context_compact.py

@@ -104,7 +104,7 @@ def auto_compact(messages: list, focus: str = "") -> list:
     # Save full transcript to disk
     TRANSCRIPT_DIR.mkdir(exist_ok=True)
     transcript_path = TRANSCRIPT_DIR / f"transcript_{int(time.time())}.jsonl"
-    with open(transcript_path, "w") as f:
+    with open(transcript_path, "w", encoding="utf-8") as f:
         for msg in messages:
             f.write(json.dumps(msg, default=str) + "\n")
     print(f"[transcript saved: {transcript_path}]")
@@ -152,7 +152,7 @@ def run_bash(command: str) -> str:
 
 def run_read(path: str, limit: int = None) -> str:
     try:
-        lines = safe_path(path).read_text().splitlines()
+        lines = safe_path(path).read_text(encoding="utf-8").splitlines()
         if limit and limit < len(lines):
             lines = lines[:limit] + [f"... ({len(lines) - limit} more)"]
         return "\n".join(lines)[:50000]
@@ -163,18 +163,18 @@ def run_write(path: str, content: str) -> str:
     try:
         fp = safe_path(path)
         fp.parent.mkdir(parents=True, exist_ok=True)
-        fp.write_text(content)
+        fp.write_text(content, encoding="utf-8")
         return f"Wrote {len(content)} bytes"
     except Exception as e:
         return f"Error: {e}"
 
 def run_edit(path: str, old_text: str, new_text: str) -> str:
     try:
         fp = safe_path(path)
-        content = fp.read_text()
+        content = fp.read_text(encoding="utf-8")
         if old_text not in content:
             return f"Error: Text not found in {path}"
-        fp.write_text(content.replace(old_text, new_text, 1))
+        fp.write_text(content.replace(old_text, new_text, 1), encoding="utf-8")
         return f"Edited {path}"
     except Exception as e:
         return f"Error: {e}"

agents/s07_task_system.py

@@ -58,11 +58,11 @@ def _load(self, task_id: int) -> dict:
         path = self.dir / f"task_{task_id}.json"
         if not path.exists():
             raise ValueError(f"Task {task_id} not found")
-        return json.loads(path.read_text())
+        return json.loads(path.read_text(encoding="utf-8"))
 
     def _save(self, task: dict):
         path = self.dir / f"task_{task['id']}.json"
-        path.write_text(json.dumps(task, indent=2, ensure_ascii=False))
+        path.write_text(json.dumps(task, indent=2, ensure_ascii=False), encoding="utf-8")
 
     def create(self, subject: str, description: str = "") -> str:
         task = {
@@ -95,7 +95,7 @@ def update(self, task_id: int, status: str = None,
     def _clear_dependency(self, completed_id: int):
         """Remove completed_id from all other tasks' blockedBy lists."""
         for f in self.dir.glob("task_*.json"):
-            task = json.loads(f.read_text())
+            task = json.loads(f.read_text(encoding="utf-8"))
             if completed_id in task.get("blockedBy", []):
                 task["blockedBy"].remove(completed_id)
                 self._save(task)
@@ -107,7 +107,7 @@ def list_all(self) -> str:
             key=lambda f: int(f.stem.split("_")[1])
         )
         for f in files:
-            tasks.append(json.loads(f.read_text()))
+            tasks.append(json.loads(f.read_text(encoding="utf-8")))
         if not tasks:
             return "No tasks."
         lines = []
@@ -142,7 +142,7 @@ def run_bash(command: str) -> str:
 
 def run_read(path: str, limit: int = None) -> str:
     try:
-        lines = safe_path(path).read_text().splitlines()
+        lines = safe_path(path).read_text(encoding="utf-8").splitlines()
         if limit and limit < len(lines):
             lines = lines[:limit] + [f"... ({len(lines) - limit} more)"]
         return "\n".join(lines)[:50000]
@@ -153,18 +153,18 @@ def run_write(path: str, content: str) -> str:
     try:
         fp = safe_path(path)
         fp.parent.mkdir(parents=True, exist_ok=True)
-        fp.write_text(content)
+        fp.write_text(content, encoding="utf-8")
         return f"Wrote {len(content)} bytes"
     except Exception as e:
         return f"Error: {e}"
 
 def run_edit(path: str, old_text: str, new_text: str) -> str:
     try:
         fp = safe_path(path)
-        c = fp.read_text()
+        c = fp.read_text(encoding="utf-8")
         if old_text not in c:
             return f"Error: Text not found in {path}"
-        fp.write_text(c.replace(old_text, new_text, 1))
+        fp.write_text(c.replace(old_text, new_text, 1), encoding="utf-8")
         return f"Edited {path}"
     except Exception as e:
         return f"Error: {e}"

agents/s08_background_tasks.py

@@ -132,7 +132,7 @@ def run_bash(command: str) -> str:
 
 def run_read(path: str, limit: int = None) -> str:
     try:
-        lines = safe_path(path).read_text().splitlines()
+        lines = safe_path(path).read_text(encoding="utf-8").splitlines()
         if limit and limit < len(lines):
             lines = lines[:limit] + [f"... ({len(lines) - limit} more)"]
         return "\n".join(lines)[:50000]
@@ -143,18 +143,18 @@ def run_write(path: str, content: str) -> str:
     try:
         fp = safe_path(path)
         fp.parent.mkdir(parents=True, exist_ok=True)
-        fp.write_text(content)
+        fp.write_text(content, encoding="utf-8")
         return f"Wrote {len(content)} bytes"
     except Exception as e:
         return f"Error: {e}"
 
 def run_edit(path: str, old_text: str, new_text: str) -> str:
     try:
         fp = safe_path(path)
-        c = fp.read_text()
+        c = fp.read_text(encoding="utf-8")
         if old_text not in c:
             return f"Error: Text not found in {path}"
-        fp.write_text(c.replace(old_text, new_text, 1))
+        fp.write_text(c.replace(old_text, new_text, 1), encoding="utf-8")
         return f"Edited {path}"
     except Exception as e:
         return f"Error: {e}"

agents/s09_agent_teams.py

@@ -93,7 +93,7 @@ def send(self, sender: str, to: str, content: str,
         if extra:
             msg.update(extra)
         inbox_path = self.dir / f"{to}.jsonl"
-        with open(inbox_path, "a") as f:
+        with open(inbox_path, "a", encoding="utf-8") as f:
             f.write(json.dumps(msg) + "\n")
         return f"Sent {msg_type} to {to}"
 
@@ -102,11 +102,11 @@ def read_inbox(self, name: str, clear: bool = True) -> list:
         if not inbox_path.exists():
             return []
         messages = []
-        for line in inbox_path.read_text().strip().splitlines():
+        for line in inbox_path.read_text(encoding="utf-8").strip().splitlines():
             if line:
                 messages.append(json.loads(line))
         if clear:
-            inbox_path.write_text("")
+            inbox_path.write_text("", encoding="utf-8")
         return messages
 
     def broadcast(self, sender: str, content: str, teammates: list) -> str:
@@ -132,11 +132,11 @@ def __init__(self, team_dir: Path):
 
     def _load_config(self) -> dict:
         if self.config_path.exists():
-            return json.loads(self.config_path.read_text())
+            return json.loads(self.config_path.read_text(encoding="utf-8"))
         return {"team_name": "default", "members": []}
 
     def _save_config(self):
-        self.config_path.write_text(json.dumps(self.config, indent=2))
+        self.config_path.write_text(json.dumps(self.config, indent=2), encoding="utf-8")
 
     def _find_member(self, name: str) -> dict:
         for m in self.config["members"]:
@@ -277,7 +277,7 @@ def _run_bash(command: str) -> str:
 
 def _run_read(path: str, limit: int = None) -> str:
     try:
-        lines = _safe_path(path).read_text().splitlines()
+        lines = _safe_path(path).read_text(encoding="utf-8").splitlines()
         if limit and limit < len(lines):
             lines = lines[:limit] + [f"... ({len(lines) - limit} more)"]
         return "\n".join(lines)[:50000]
@@ -289,7 +289,7 @@ def _run_write(path: str, content: str) -> str:
     try:
         fp = _safe_path(path)
         fp.parent.mkdir(parents=True, exist_ok=True)
-        fp.write_text(content)
+        fp.write_text(content, encoding="utf-8")
         return f"Wrote {len(content)} bytes"
     except Exception as e:
         return f"Error: {e}"
@@ -298,10 +298,10 @@ def _run_write(path: str, content: str) -> str:
 def _run_edit(path: str, old_text: str, new_text: str) -> str:
     try:
         fp = _safe_path(path)
-        c = fp.read_text()
+        c = fp.read_text(encoding="utf-8")
         if old_text not in c:
             return f"Error: Text not found in {path}"
-        fp.write_text(c.replace(old_text, new_text, 1))
+        fp.write_text(c.replace(old_text, new_text, 1), encoding="utf-8")
         return f"Edited {path}"
     except Exception as e:
         return f"Error: {e}"