Claude Code v0.2.80

OAuth Support for Claude.ai Pro/Team Users (CLAUDE_MAX)

• New environment variable: CLAUDE_MAX enables OAuth authentication for Claude.ai Pro/Team users
• When enabled, adds user:inference scope to OAuth permissions, allowing Claude Code to use your Claude.ai account for API access
• OAuth flow automatically handles token refresh when tokens are near expiration (within 5 minutes)
• Separate token storage for Claude.ai OAuth vs Console API keys

Deny Rules for Tool Permissions

• New permission behavior: In addition to "allow" rules, you can now create "deny" rules
• Navigate between Allow/Deny modes using Tab or arrow keys in the permission rules interface
• Denied tools will be automatically rejected without prompting
• Example: Add a deny rule for Bash to prevent any shell command execution

Managed Settings Support

• Enterprise policy control: System administrators can now configure tool permissions via managed settings
• Managed settings are loaded from system-level policy files:
• macOS: /Library/Application Support/ClaudeCode/policies.json
• Linux: /etc/claude-code/policies.json
• Managed permission rules cannot be modified or deleted by users
• Rules are displayed with a special indicator showing they're managed by your organization

Tool Renaming

• dispatch_agent renamed to AgentTool for better clarity
• ReadNotebook renamed to NotebookReadTool for consistency
• LS renamed to LSTool for consistency

Enhanced Security

• API key validation now ensures keys only contain alphanumeric characters, dashes, and underscores
• Improved error messages for invalid API key formats
• Better error handling for OAuth token refresh failures

Terminal Bell Control (macOS)

• Automatically attempts to disable the audio bell in Terminal.app profiles
• Reduces notification noise during command execution

At-Mention Content Display

• New visual formatting for at-mention content in conversations
• Better handling of user-provided file references

Performance Enhancements

• Prompt caching can now be disabled via DISABLE_PROMPT_CACHING environment variable
• Improved async handling for file operations and OAuth flows

Using OAuth with Claude.ai Account:

# Enable Claude.ai OAuth authentication
export CLAUDE_MAX=1
claude

# The OAuth flow will include user:inference scope
# Your Claude.ai Pro/Team account will be used for API access

Creating Deny Rules:

# In the permission rules interface:
1. Press Tab to switch to "Deny" mode
2. Select "Add a new rule..."
3. Enter the tool pattern (e.g., "Bash", "Write*", etc.)
4. The tool will be automatically denied without prompting

Managed Settings Example:

// /Library/Application Support/ClaudeCode/policies.json
{
  "permissions": {
    "allow": ["Read*", "Grep", "LS"],
    "deny": ["Bash", "Write*", "Delete*"]
  }
}

• Fixed potential race conditions in OAuth callback handling
• Improved error messages for port conflicts during OAuth flow
• Better handling of manual OAuth code entry
• Fixed issues with permission rule deletion
• Enhanced validation for tool permission contexts