1.18.9: All multi-parameter tools fail with SchemaError on Windows

Description

• opencode 版本 1.18.9
• Windows 平台
• 所有多参数工具（bash、write、glob 等）都报 SchemaError: Missing key at ["command"] 或类似错误
• 单参数 read 偶尔可用
• 重启会话不解决问题
• 升级到最新版应可修复
  标题： 1.18.9: All multi-parameter tools fail with SchemaError on Windows

opencode version: 1.18.9 Platform: Windows (win32), PowerShell 5.1

Description:

All tools requiring multiple parameters (bash, write, glob, grep, task, question) fail with SchemaError: Missing key at ["command"] (or equivalent key depending on the tool). Only single-parameter tools like read(filePath=...) work sporadically.

The issue seems to be that the parameters JSON gets wrapped in an extra arguments layer before reaching the schema validator, so the expected top-level keys (e.g. command, content, pattern) are never found.

To reproduce:

Run opencode 1.18.9 on Windows.
Invoke any multi-parameter tool, e.g. write(filePath="x", content="y") or bash(command="echo hi").
Observe SchemaError: Missing key at [...].
Expected: Tool executes with provided parameters. Actual: SchemaError on every multi-parameter call.

Workaround: Upgrade to a newer version via opencode update.

Plugins

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OpenCode version

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Steps to reproduce

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Operating System

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Terminal

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