[BUG] acli (Atlassian's official CLI tool) using OAuth fails in Claude Code but works in macOS Terminal

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Description

acli is the official Atlassian CLI tool that provides command-line access to Jira, Confluence, and other Atlassian products. It supports both OAuth and API token authentication — OAuth being the preferred approach as it stores credentials securely in the macOS Keychain rather than in plain-text files.

When using OAuth, acli works correctly in a standard macOS Terminal session but fails when invoked from within Claude Code — both as a regular Bash tool call and using the ! prefix — with the error: ✗ Error: failed to fetch work item details.

What Should Happen?

Any acli command that works in a standard macOS Terminal session should execute successfully within Claude Code and return the same results.

Error Messages/Logs

For the command
acli jira workitem view <ISSUE-1234>
Error: Exit code 1
Error: failed to fetch work item details

For the command
acli jira auth status
Error: Exit code 1
Error: failed to retrieve authenticated status

It appears that Jira session is not active. You'll need to re-authenticate...

Steps to Reproduce

1. Install acli and authenticate via OAuth: acli jira auth login
2. Verify it works in Mac Terminal: acli jira workitem view <some issue like - ISSUE-1234>
3. Open Claude Code and run the same command:

! acli jira workitem view ISSUE-1234

1. Observe the error: ✗ Error: failed to fetch work item details

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.148

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

iTerm2

Additional Information

Environment

macOS (MacBook)
Claude Code version 2.1.148
Claude Code with Claude Sonnet 4.6
acli v1.3.18-stable
Authentication type: OAuth
Shell: Oh my zsh

Related Issues

The following issues may be related, as they describe problems with Claude Code's execution environment affecting CLI tools that have specific runtime requirements:

#26353 — Interactive TTY mode for bash commands
#37523 — Opt-in Host-Shell Execution Mode with Full stdin Passthrough

However, the issue reported here is distinct — acli jira workitem view is a non-interactive, read-only command that requires no TTY input. The problem appears to be specifically around Claude Code's inability to access credentials stored in the macOS Keychain, rather than interactive terminal support.