Opencode running in plan mode called a subagent to bypass edit permission

[FOV0813]

Question

I was working at plan mode and ask for refactor plan and opencode started to write the code by calling a subagent. Is that a bug or just my misconfiguration?

As the picture shows, after the agent tried to edit the file for several times it started to call subagents and successfully edited my file.

[github-actions]

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

• [Security Issue/Bug] Plan mode restrictions bypassed when spawning sub-agents #6527: [Security Issue/Bug] Plan mode restrictions bypassed when spawning sub-agents - This is the most direct match with detailed documentation of the same vulnerability
• [bug] Restrict which subagents a custom agent can spawn (built-in Plan mode can write files via sub agent) #4267: Restrict which subagents a custom agent can spawn (built-in Plan mode can write files via sub agent) - Previously identified and closed as the same issue
• [Security Bug] Subagent permissions not enforced - configured restrictions ignored #7474: Subagent permissions not enforced - configured restrictions ignored - Shows the root cause of subagents bypassing parent permissions
• Plan mode is editing my files (gemini 3 pro) #7292: Plan mode is editing my files - Plan mode making file modifications when it shouldn't
• Files were modified even being under 'Plan Mode' #5475: Files were modified even being under 'Plan Mode' - Similar plan mode file editing issue
• Plan Agent does modifications to files. #2709: Plan Agent does modifications to files - Plan agent making modifications despite restrictions
• The model loops attempting to edit files in PLAN mode #3038: The model loops attempting to edit files in PLAN mode - Model repeatedly trying to edit in plan mode

Feel free to ignore if none of these address your specific case.