Tool call JSON payload truncated — all tools fail with 'Unterminated string in JSON'

[marinamartynova]

Description

Используется Windows PowerShell 5.1
Команда запуска: opencode в папке C:\Users\MarinaAI\Documents\Default Project\budget-app
Любой вызов инструмента (bash, read, glob и т.д.) обрывается на середине JSON
Пример ошибки: Invalid input for tool bash: JSON parsing failed: Text: {"command": " (position 13)
Пробовали обновить opencode до последней версии — не помогло

Plugins

No response

OpenCode version

No response

Steps to reproduce

No response

Screenshot and/or share link

No response

Operating System

windows 11

Terminal

No response

[github-actions]

This issue doesn't fully meet our contributing guidelines.

What needs to be fixed:

• OpenCode version is empty — please provide the exact version (e.g. opencode --version)
• Steps to reproduce is empty — please add clear, minimal steps to reproduce the issue
• Terminal is empty — please specify which terminal you are using (e.g. PowerShell 5.1, Windows Terminal, etc.)

Please edit this issue to address the above within 2 hours, or it will be automatically closed.

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

• Large tool arguments (>~30KB) are truncated at the content boundary, causing "Unterminated string in JSON" — affects all tools incl. MCP #42224: Same symptom — Unterminated string in JSON on Windows PowerShell 5.1, all tools failing, reproduced on multiple opencode versions

If you believe this was flagged incorrectly, please let a maintainer know.

[github-actions]

This issue has been automatically closed because it was not updated to meet our contributing guidelines within the 2-hour window.

Feel free to open a new issue that follows our issue templates.