Claude Code v1.0.16

# Claude Code v1.0.16 Changelog

• New ExitPlanMode tool: Users can now work in a "plan mode" where Claude Code presents implementation plans before executing them. When ready to proceed with coding, this tool prompts the user to exit plan mode.
• Example usage: After Claude Code presents a plan for implementing a feature, it will use this tool to get user approval before proceeding with the actual implementation.
• The plan parameter supports markdown formatting for clear, structured presentations.

• New session mode detection: Claude Code can now detect and handle non-interactive sessions differently from interactive ones.
• Two new functions manage this state: z0A() to check if the session is non-interactive, and w0A(A) to set the non-interactive state.
• This affects API key authentication behavior - non-interactive sessions have different authentication requirements.

• Enhanced API key source detection: The authentication check now considers whether the API key comes from ANTHROPIC_API_KEY environment variable or the apiKeyHelper.
• The iP() function (formerly BV()) now checks the source of authentication more granularly.
• Non-interactive sessions are handled differently in authentication flows.

• Simplified cloud provider checks: New Hv() function provides a cleaner way to detect if Claude Code is using AWS Bedrock or Google Vertex AI.
• Returns true if either CLAUDE_CODE_USE_BEDROCK or CLAUDE_CODE_USE_VERTEX environment variables are set.

• Updated token limits:
• Maximum token limit increased from 180,000 to 200,000 tokens
• New 20,000 token threshold introduced for certain operations
• New Ow2() function calculates remaining tokens available in the current context

• Optimized imports: Streamlined import statements, using more specific imports like { cwd as dI0 } and { PassThrough as uK5 } instead of default imports.

• Added new constant po1 = 3000 (likely a timeout or delay value)
• Removed unused KfA() function that checked authentication source
• Removed empty object schema q75
• Added HA1 variable for internal module management

None - this version maintains backward compatibility with v1.0.15.