[Desktop] - Error when attempting to launch multiple subagents #7147

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opened 2026-02-16 18:06:18 -05:00 by yindo · 1 comment
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Originally created by @virgildotcodes on GitHub (Jan 22, 2026).

Originally assigned to: @rekram1-node on GitHub.

Description

Using Codex 5.2 Xhigh - issued a prompt, came back to find that it had decided to try to spawn some parallel agents, yet errored out:

Planning parallel file explorations
I'm preparing to spawn multiple explore agents concurrently to analyze key modified files for simplifications, focusing on recent changes while ensuring compliance with documentation checks and testing guidelines before applying refinements.
[ { "origin"
"string", "code": "invalid_format", "format": "starts_with", "prefix": "ses", "path": [], "message": "Invalid string: must start with \"ses\"" } ]
[ { "origin"
"string", "code": "invalid_format", "format": "starts_with", "prefix": "ses", "path": [], "message": "Invalid string: must start with \"ses\"" } ]
[ { "origin"
"string", "code": "invalid_format", "format": "starts_with", "prefix": "ses", "path": [], "message": "Invalid string: must start with \"ses\"" } ]
[ { "origin"
"string", "code": "invalid_format", "format": "starts_with", "prefix": "ses", "path": [], "message": "Invalid string: must start with \"ses\"" } ]

It apparently had read the messages and fixed the issue in the next call though, and proceeded as normal.

Plugins

None

OpenCode version

1.1.31

Steps to reproduce

Have not been able to reproduce.

Screenshot and/or share link

https://opncd.ai/share/nDbHcBl9

Operating System

MacOs 26.2

Terminal

This is on the desktop app

Originally created by @virgildotcodes on GitHub (Jan 22, 2026). Originally assigned to: @rekram1-node on GitHub. ### Description Using Codex 5.2 Xhigh - issued a prompt, came back to find that it had decided to try to spawn some parallel agents, yet errored out: ``` Planning parallel file explorations I'm preparing to spawn multiple explore agents concurrently to analyze key modified files for simplifications, focusing on recent changes while ensuring compliance with documentation checks and testing guidelines before applying refinements. [ { "origin" "string", "code": "invalid_format", "format": "starts_with", "prefix": "ses", "path": [], "message": "Invalid string: must start with \"ses\"" } ] [ { "origin" "string", "code": "invalid_format", "format": "starts_with", "prefix": "ses", "path": [], "message": "Invalid string: must start with \"ses\"" } ] [ { "origin" "string", "code": "invalid_format", "format": "starts_with", "prefix": "ses", "path": [], "message": "Invalid string: must start with \"ses\"" } ] [ { "origin" "string", "code": "invalid_format", "format": "starts_with", "prefix": "ses", "path": [], "message": "Invalid string: must start with \"ses\"" } ] ``` It apparently had read the messages and fixed the issue in the next call though, and proceeded as normal. ### Plugins None ### OpenCode version 1.1.31 ### Steps to reproduce Have not been able to reproduce. ### Screenshot and/or share link https://opncd.ai/share/nDbHcBl9 ### Operating System MacOs 26.2 ### Terminal This is on the desktop app
yindo added the bug label 2026-02-16 18:06:18 -05:00
yindo closed this issue 2026-02-16 18:06:18 -05:00
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@rekram1-node commented on GitHub (Feb 6, 2026):

This should be fixed now

@rekram1-node commented on GitHub (Feb 6, 2026): This should be fixed now
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Reference: anomalyco/opencode#7147