fix(llm): add exponential backoff retry for API calls#38
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fryrice2000 wants to merge 2 commits intoNarcooo:masterfrom
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fix(llm): add exponential backoff retry for API calls#38fryrice2000 wants to merge 2 commits intoNarcooo:masterfrom
fryrice2000 wants to merge 2 commits intoNarcooo:masterfrom
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chatCompletion and chatWithTools now auto-retry on transient errors (429/502/503/ECONNRESET/ETIMEDOUT) with exponential backoff + jitter. Client errors (401/403/400) fail immediately without retry. - New: packages/core/src/llm/retry.ts (withRetry utility) - New: packages/core/src/__tests__/retry.test.ts (15 test cases) - Modified: packages/core/src/llm/provider.ts (wrap both public functions)
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修复内容
LLM 调用层（chatCompletion / chatWithTools）无重试机制，
遇到 429/502/ECONNRESET 等瞬时 API 错误时会导致管线直接崩溃。
修改方案
测试
✅ 已覆盖的场景
错误类型 示例 行为
限频 429 Rate Limit 重试 ✅
网关错误 502 Bad Gateway 重试 ✅
服务不可用 503 Service Unavailable 重试 ✅
连接重置 ECONNRESET 重试 ✅
连接超时 ETIMEDOUT 重试 ✅
DNS 解析失败 ENOTFOUND 重试 ✅
Socket 断开 socket hang up 重试 ✅
fetch 层失败 TypeError: fetch failed 重试 ✅
中文包装的 429 "请求过多" (wrapLLMError 输出) 重试 ✅
认证失败 401 Unauthorized 不重试 ✅
权限拒绝 403 Forbidden 不重试 ✅
请求格式错误 400 Bad Request 不重试 ✅
无效 API Key invalid_api_key 不重试 ✅