VS Code extension host crashes when OAuth /api/oauth/claude_cli/client_data returns 429 — no backoff, kills all extensions
증상
When the Claude Code VS Code extension (anthropic.claude-code) receives a HTTP 429 response from the OAuth endpoint https://api.anthropic.com/api/oauth/claude_cli/client_data, it retries in a tight loop with no exponential backoff. This saturates the extension host IPC channel, which then crashes — taking all other VS Code extensions (GitHub Copilot Chat, GitHub Pull Request, etc.)
원인
API rate limit reached — too many requests within the allowed time window triggered the provider’s throttling mechanism. 카테고리: rate-limit.
해결법
None reliable. Signing out + back in temporarily clears the rate limit, but the crash recurs if the limit is hit again. Disabling the Claude Code extension prevents the crash but removes all functionality.
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/30536
Source: https://github.com/anthropics/claude-code/issues/30536
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