claude-code - 💡(How to fix) Fix [BUG] git push fails with HTTP 503 on git-receive-pack endpoint via the Claude Code proxy [2 comments, 2 participants]

error: RPC failed; HTTP 503 curl 22 The requested URL returned error: 503 send-pack: unexpected disconnect while reading sideband packet fatal: the remote end hung up unexpectedly Everything up-to-date

Proxy endpoint: http://127.0.0.1:<port>/git/<owner>/<repo> Cloudflare / api.anthropic.com upstream returning 503 on git-receive-pack

TL;DR

The issue can be mitigated by bypassing the Claude Code proxy using MCP GitHub tools (push_files) as a temporary workaround.

Guidance

• Investigate the Cloudflare/api.anthropic.com upstream configuration to identify why it's returning a 503 error for git-receive-pack requests.
• Verify that the issue persists when using a different Claude Code session or a different repository to isolate the problem.
• Check the Claude Code proxy endpoint configuration to ensure it's correctly set up to handle git-receive-pack requests.
• Consider testing the git push operation with a different proxy or no proxy to determine if the issue is specific to the Claude Code proxy.

Example

No code snippet is provided as the issue seems to be related to the proxy configuration rather than a specific code error.

Notes

The root cause of the issue is unclear, but it appears to be related to the Cloudflare/api.anthropic.com upstream returning a 503 error for git-receive-pack requests. Further investigation is needed to determine the cause and implement a permanent fix.

Recommendation

Apply the workaround by using MCP GitHub tools (push_files) to bypass the Claude Code proxy until a permanent fix is found, as it allows for successful pushes to the remote branch.