Windows: cowork-svc.exe burns 17-20% CPU due to per-request Authenticode verification on 1-second polling loop
증상
On Windows, cowork-svc.exe (CoworkVMService) continuously consumes 17-20% CPU and ~0.1 MB/s network bandwidth while completely idle. The service log at C:\ProgramData\Claude\Logs\cowork-service.log grew to 807K+ lines (512KB) in 4 days.
원인
Agent entered a retry or decision loop without an exit condition, consuming tokens indefinitely without making progress.
해결법
- API 키 유효성/만료 확인
- OAuth 토큰 갱신: refresh token 사용
- 환경변수 확인: .env 파일 설정 검증
- 캐시된 인증 정보 삭제:
~/.openclaw/credentials.json제거 후 재인증 - IP 화이트리스트/스코프 확인
예상 토큰 절약
이 에러로 삽질 시: 약 5,000~15,000 토큰 소비 이 해결법 참조 시: 약 500 토큰
출처
https://github.com/anthropics/claude-code/issues/31848
Source: https://github.com/anthropics/claude-code/issues/31848
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