bug: parallel edit tool calls on same file will error out #2882

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1. rekram1-node

   self-assigned this

   on Sep 30, 2025
2. github-actions commented on Sep 30, 2025

   

   github-actionsBot

   on Sep 30, 2025 – with GitHub Actions

   Contributor

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

   • claude is reads only file header to handle read-before-write requirement #1348: [claude is reads only file header to handle read-before-write requirement] - Also describes workarounds to bypass the "read file before editing" requirement, showing similar patterns
   • write and edit tools return spurious 'cmd must not be empty' error despite successful operations #2255: [write and edit tools return spurious 'cmd must not be empty' error despite successful operations] - Reports edit tool errors and workflow issues with file modification tools

   Feel free to ignore if none of these address your specific case.
3. spoons-and-mirrors

   changed the title [-]bug: parallel edit tool calls will error out[/-] [+]bug: parallel edit tool calls on same file will error out[/+] on Oct 1, 2025
4. rekram1-node

   closed this as completedin #4388on Dec 15, 2025