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feat: Improve error message for 403 permission errors when committing

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When the github_file_ops MCP server gets a 403 error, it now shows a cleaner
message suggesting to rebase from main/master branch to fix the issue.
This commit is contained in:
km-anthropic
2025-08-21 11:50:21 -07:00
parent 31085bc3aa
commit f7111a5d2b
1 changed files with 25 additions and 11 deletions
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36
src/mcp/github-file-ops-server.ts
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@@ -385,15 +385,22 @@ server.tool(
if (!updateRefResponse.ok) { if (!updateRefResponse.ok) {
const errorText = await updateRefResponse.text(); const errorText = await updateRefResponse.text();
// Provide a more helpful error message for 403 permission errors
if (updateRefResponse.status === 403) {
const permissionError = new Error(
`Permission denied: Unable to push commits to branch '${branch}'. ` +
`Please rebase your branch from the main/master branch to allow Claude to commit.\n\n` +
`Original error: ${errorText}`,
);
throw permissionError;
}
// For other errors, use the original message
const error = new Error( const error = new Error(
`Failed to update reference: ${updateRefResponse.status} - ${errorText}`, `Failed to update reference: ${updateRefResponse.status} - ${errorText}`,
); );
// Only retry on 403 errors - these are the intermittent failures we're targeting
if (updateRefResponse.status === 403) {
throw error;
}
// For non-403 errors, fail immediately without retry // For non-403 errors, fail immediately without retry
console.error("Non-retryable error:", updateRefResponse.status); console.error("Non-retryable error:", updateRefResponse.status);
throw error; throw error;
@@ -591,16 +598,23 @@ server.tool(
if (!updateRefResponse.ok) { if (!updateRefResponse.ok) {
const errorText = await updateRefResponse.text(); const errorText = await updateRefResponse.text();
// Provide a more helpful error message for 403 permission errors
if (updateRefResponse.status === 403) {
console.log("Received 403 error, will retry...");
const permissionError = new Error(
`Permission denied: Unable to push commits to branch '${branch}'. ` +
`Please rebase your branch from the main/master branch to allow Claude to commit.\n\n` +
`Original error: ${errorText}`,
);
throw permissionError;
}
// For other errors, use the original message
const error = new Error( const error = new Error(
`Failed to update reference: ${updateRefResponse.status} - ${errorText}`, `Failed to update reference: ${updateRefResponse.status} - ${errorText}`,
); );
// Only retry on 403 errors - these are the intermittent failures we're targeting
if (updateRefResponse.status === 403) {
console.log("Received 403 error, will retry...");
throw error;
}
// For non-403 errors, fail immediately without retry // For non-403 errors, fail immediately without retry
console.error("Non-retryable error:", updateRefResponse.status); console.error("Non-retryable error:", updateRefResponse.status);
throw error; throw error;