retry invalid tool-call diff / malformed tool input instead of aborting

[pkellyuk]

What happened?

During tool execution, the session can abort instead of retrying on transient provider/tool-call parsing failures.

I hit two real error shapes:

1. Invalid diff: now finding less tool calls!
2. Invalid input for tool write: JSON parsing failed: Text: ...

When these occur, opencode currently exits the turn instead of recovering.

Steps to reproduce

1. Run a tool-heavy edit turn where streamed tool-call deltas are produced.
2. Hit a provider response that emits an invalid intermediate tool-call diff.
3. Observe abort with Tool execution aborted and Invalid diff: now finding less tool calls!.
4. In other runs, observe abort on malformed tool input with JSON parsing failed: Text:.

Expected behavior

• Treat transient invalid tool-call diff errors as retryable.
• Attempt to repair malformed tool input JSON before giving up.

Additional context

I have a tested fix prepared that:

• marks invalid tool-call diff errors as retryable
• repairs malformed JSON tool input (including Text: payloads) and retries the tool call

[github-actions]

This issue might be a duplicate of existing issues. Please check:

• Tool execution aborted when tool call is truncated (empty input) #13102: Tool execution aborted when tool call is truncated (empty input) — overlaps on the "tool execution aborted" + malformed/incomplete tool input scenario and the same expected behavior (retry instead of abort)
• AI_JSONParseError during SSE streaming is not retried (falls to NamedError.Unknown) #13579: AI_JSONParseError during SSE streaming is not retried — overlaps on JSON parse failures during streaming not being classified as retryable, including the JSON parsing failed error message you mention
• Retry transient local provider connection failures (ECONNREFUSED) in session loop #15851: Retry transient local provider connection failures — same retry-on-transient-failure pattern, different error type

If these don't fully cover your case (especially the Invalid diff: now finding less tool calls! shape), this may still be worth keeping open as a distinct issue.

[KingingWang]

I also encountered this issue. I think this situation should be retried a few times before terminating when it cannot be recovered.

[tup2339]

less than two months, 10000 new issue were added, good suggestions were completely drowned out.