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fix unterminated string errors in workflow edit tool args #20757
Description
Summary
GitLab Duo workflow edit-writing flows can fail with unterminated string errors when tool arguments are wrapped in fenced JSON or surrounding prose instead of being emitted as a strict JSON object.
Reproduction
- Use a GitLab workflow-backed model in opencode.
- Trigger an edit-writing flow that emits a tool call with multiline arguments.
- Observe the tool execution path fail before the tool runs when the arguments are wrapped or malformed.
Expected
The workflow tool executor should tolerate common wrapper formats around object-shaped JSON tool args, while still rejecting malformed inputs cleanly.
Actual
The executor calls JSON.parse directly on the raw args string, which surfaces parser failures like unterminated string during edit-writing flows.
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github-actions commentedon Apr 2, 2026
This issue might be a duplicate of existing issues. Please check:
Error message: JSON Parse error: Unterminated stringerrors #10755: JSON Parse error: Unterminated string errors during tool callsIf your issue is distinct (specifically about GitLab Duo workflow wrapping args in fenced JSON/prose), please clarify the difference in a comment.
github-actions commentedon Jul 3, 2026
To stay organized issues are automatically closed after 60 days of no activity. If the issue is still relevant please open a new one.