Allow bounded parent directory verification without listing contents

Description

The shell tool instructions require ls before any command that creates files or directories. When the parent has many children, this can emit a very large result even though the agent only needs to verify that the parent exists and is a directory.

For existence/type-only checks, the prompt should allow a bounded probe such as test -d "$parent" or stat. It should keep ls when child names are actually needed and retain path quoting and wrong-parent checks.

The current wording is in packages/opencode/src/tool/shell/prompt.ts:81-83.

Plugins

opencode-aidevops

OpenCode version

1.18.28

Steps to reproduce

1. Use a parent directory containing many children.
2. Ask the agent to create a file beneath that existing parent.
3. Observe that the Bash tool instructions require ls first, enumerating all children.
4. Compare with test -d "$parent", which verifies the required existence/type condition without listing contents.

Screenshot and/or share link

Not applicable.

Operating System

macOS

Terminal

OpenCode TUI