chore: ruff auto-fix C401, C416, C408, PLR1722 (#23940)

C401:   set(x for x in y) -> {x for x in y}      (set comprehension)
C416:   [(k,v) for k,v in d] -> list(d.items())  (unnecessary listcomp)
C408:   tuple()/dict() -> ()/{}                   (unnecessary collection call)
PLR1722: exit() -> sys.exit()                     (adds import sys where needed)

21 instances fixed, 0 remaining. 19 files, +40/-36.

tools/memory_tool.py

@@ -291,7 +291,7 @@ class MemoryStore:
 
             if len(matches) > 1:
                 # If all matches are identical (exact duplicates), operate on the first one
-                unique_texts = set(e for _, e in matches)
+                unique_texts = {e for _, e in matches}
                 if len(unique_texts) > 1:
                     previews = [e[:80] + ("..." if len(e) > 80 else "") for _, e in matches]
                     return {
@@ -341,7 +341,7 @@ class MemoryStore:
 
             if len(matches) > 1:
                 # If all matches are identical (exact duplicates), remove the first one
-                unique_texts = set(e for _, e in matches)
+                unique_texts = {e for _, e in matches}
                 if len(unique_texts) > 1:
                     previews = [e[:80] + ("..." if len(e) > 80 else "") for _, e in matches]
                     return {

tools/mixture_of_agents_tool.py

@@ -54,6 +54,7 @@ from typing import Dict, Any, List, Optional
 from tools.openrouter_client import get_async_client as _get_openrouter_client, check_api_key as check_openrouter_api_key
 from agent.auxiliary_client import extract_content_or_reasoning
 from tools.debug_helpers import DebugSession
+import sys
 
 logger = logging.getLogger(__name__)
 
@@ -451,7 +452,7 @@ if __name__ == "__main__":
         print("❌ OPENROUTER_API_KEY environment variable not set")
         print("Please set your API key: export OPENROUTER_API_KEY='your-key-here'")
         print("Get API key at: https://openrouter.ai/")
-        exit(1)
+        sys.exit(1)
     else:
         print("✅ OpenRouter API key found")
     

tools/skills_guard.py

@@ -928,5 +928,5 @@ def _build_summary(name: str, source: str, trust: str, verdict: str, findings: L
     if not findings:
         return f"{name}: clean scan, no threats detected"
 
-    categories = set(f.category for f in findings)
+    categories = {f.category for f in findings}
     return f"{name}: {verdict} — {len(findings)} finding(s) in {', '.join(sorted(categories))}"

tools/skills_sync.py

@@ -345,7 +345,7 @@ def reset_bundled_skill(name: str, restore: bool = False) -> dict:
     manifest = _read_manifest()
     bundled_dir = _get_bundled_dir()
     bundled_skills = _discover_bundled_skills(bundled_dir)
-    bundled_by_name = {skill_name: skill_dir for skill_name, skill_dir in bundled_skills}
+    bundled_by_name = dict(bundled_skills)
 
     in_manifest = name in manifest
     is_bundled = name in bundled_by_name

tools/skills_tool.py

@@ -721,7 +721,7 @@ def skills_list(category: str = None, task_id: str = None) -> str:
 
         # Extract unique categories
         categories = sorted(
-            set(s.get("category") for s in all_skills if s.get("category"))
+            {s.get("category") for s in all_skills if s.get("category")}
         )
 
         return json.dumps(

tools/terminal_tool.py

@@ -888,6 +888,7 @@ from tools.environments.docker import DockerEnvironment as _DockerEnvironment
 from tools.environments.modal import ModalEnvironment as _ModalEnvironment
 from tools.environments.managed_modal import ManagedModalEnvironment as _ManagedModalEnvironment
 from tools.managed_tool_gateway import is_managed_tool_gateway_ready
+import sys
 
 
 # Tool description for LLM
@@ -2243,7 +2244,7 @@ if __name__ == "__main__":
 
     if not check_terminal_requirements():
         print("\n❌ Requirements not met. Please check the messages above.")
-        exit(1)
+        sys.exit(1)
 
     print("\n✅ All requirements met!")
     print("\nAvailable Tool:")

tools/tts_tool.py

@@ -848,13 +848,13 @@ def _generate_openai_tts(text: str, output_path: str, tts_config: Dict[str, Any]
     OpenAIClient = _import_openai_client()
     client = OpenAIClient(api_key=api_key, base_url=base_url)
     try:
-        create_kwargs = dict(
-            model=model,
-            voice=voice,
-            input=text,
-            response_format=response_format,
-            extra_headers={"x-idempotency-key": str(uuid.uuid4())},
-        )
+        create_kwargs = {
+            "model": model,
+            "voice": voice,
+            "input": text,
+            "response_format": response_format,
+            "extra_headers": {"x-idempotency-key": str(uuid.uuid4())},
+        }
         if speed != 1.0:
             create_kwargs["speed"] = max(0.25, min(4.0, speed))
         response = client.audio.speech.create(**create_kwargs)

tools/vision_tools.py

@@ -41,6 +41,7 @@ from agent.auxiliary_client import async_call_llm, extract_content_or_reasoning
 from hermes_constants import get_hermes_dir
 from tools.debug_helpers import DebugSession
 from tools.website_policy import check_website_access
+import sys
 
 logger = logging.getLogger(__name__)
 
@@ -937,7 +938,7 @@ if __name__ == "__main__":
     if not api_available:
         print("❌ No auxiliary vision model available")
         print("Configure a supported multimodal backend (OpenRouter, Nous, Codex, Anthropic, or a custom OpenAI-compatible endpoint).")
-        exit(1)
+        sys.exit(1)
     else:
         print("✅ Vision model available")
     

tools/web_tools.py

@@ -100,6 +100,7 @@ from tools.managed_tool_gateway import (
 from tools.tool_backend_helpers import managed_nous_tools_enabled, prefers_gateway
 from tools.url_safety import is_safe_url
 from tools.website_policy import check_website_access
+import sys
 
 logger = logging.getLogger(__name__)
 
@@ -2153,7 +2154,7 @@ if __name__ == "__main__":
         print(f"✅ Auxiliary model available: {default_summarizer_model}")
 
     if not web_available:
-        exit(1)
+        sys.exit(1)
 
     print("🛠️  Web tools ready for use!")