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Question tool error, ' stops/hangs execution completely in headless mode #10012
Description
Description
When I run opencode in a a loop it sometimes causes the Agent to ask questions,
i use opencode run --agent ... , so questions are useless too, causing my loop/script to get stuck.
→ Asked 2 questions
Error: The question tool was called with invalid arguments: [
{
"origin": "string",
"code": "too_big",
"maximum": 30,
"inclusive": true,
"path": [
"questions",
0,
"options",
0,
"label"
],
"message": "Too big: expected string to have <=30 characters"
},
{
"origin": "string",
"code": "too_big",
"maximum": 30,
"inclusive": true,
"path": [
"questions",
1,
"options",
0,
"label"
],
"message": "Too big: expected string to have <=30 characters"
}
].
Please rewrite the input so it satisfies the expected schema
Plugins
No response
OpenCode version
OpenCode 1.1.31
Steps to reproduce
- I was unable to force the error, i hope the exported session helps.
attempt, here it worked fine everytime:
we are debugging a opencode issue, it fails to propperly handle/ask very long choice question.
write a 2 paragraph stories and ask which is better to verify this issue.
ask using the question too.
Screenshot and/or share link
https://opncd.ai/share/uF0512WZ
Operating System
MacOS Tahoe 26
Terminal
Ghostty, but was running in a shellscript loop
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github-actions commentedon Jan 22, 2026
This issue might be a duplicate of existing issues. Please check:
opencode run ...mode #9830: Question tools block execution inopencode run ...mode - directly related to headless mode blockingtoo_bigforlabelvsheader)Feel free to ignore if none of these address your specific case.
rwese commentedon Jan 22, 2026
Expected behavior would be:
rwese commentedon Jan 22, 2026
Let me know if any of the options, or any other, you would like to see, I am happy to implement it, as it breaks my ralph. :(
rwese commentedon Jan 22, 2026
Found the workaround, disable the tool, either globally or for a specific agent.
{ "$schema": "https://opencode.ai/config.json", "permission": { "question": "deny" } }rwese commentedon Jan 23, 2026
Happens also when using as ACP, in Zed for example:
I am unaware if this might be a implementation issue in the Client
Session Export:
acp_session.json
{ "id": "prt_beb3703de001lJ28nbZsvWaZ3o", "sessionID": "ses_414cd0464ffeKV5D33YzVhi6kL", "messageID": "msg_beb36fb5c0011c3DnH7gu0ENIp", "type": "tool", "callID": "call_function_qjwy0qfku09b_1", "tool": "question", "state": { "status": "running", "input": { "questions": [ { "header": "Skill check", "multiple": false, "options": [ { "description": "A script or hook named skill-check or similar", "label": "Custom script" }, { "description": "A lefthook hook that validates skill files", "label": "Lefthook hook" }, { "description": "Something else not listed here", "label": "Other" } ], "question": "What specific \"skill check\" are you referring to? I don't see any skill-related pre-commit hooks in the current lefthook.yml configuration. Could you clarify where this check is defined?" } ] }, "time": { "start": 1769177811182 } } }Bonus issue: The weird thing is, the agent did not have the 'question' permission, via cli they never ask.
yajo commentedon Mar 12, 2026
Isn't this fixed in #11379?
dnut commentedon May 20, 2026
No this is not fixed. The question tool is opt-in for acp mode, but not for cli mode. See #13562. The question tool should simply needs to be disabled in cli mode since it's not usable at all.
github-actions commentedon Jul 20, 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.