Claude Code v0.2.104

# Claude Code v0.2.104 Changelog

• New /websearch command: Search the web directly from Claude Code
• Domain filtering supported with --allowed-domains and --blocked-domains flags
• Returns formatted search results with titles and URLs
• Limited to 8 searches per conversation
• Currently available in the US only

  /websearch "latest React 19 features"
  /websearch "Python async best practices" --allowed-domains=python.org,realpython.com

• New /ide command: Manage IDE connections and integrations
• Connect to VS Code, Cursor, or other supported IDEs with Claude Code extensions
• View connection status and available IDEs
• Disconnect from current IDE

  /ide  # Opens IDE selection interface

• Added database health checks to system diagnostics
• Database availability now shown in status displays
• Warning when database is unavailable (affects continue/resume features)

• Enhanced token counting with cache-aware metrics
• Track cache read tokens separately
• Track cache creation tokens
• Better cost estimation with unknown model handling
• Last interaction time tracking

• Improved token refresh mechanism with file locking
• Prevents race conditions during concurrent refresh attempts
• Automatic retry with exponential backoff
• Better error handling for locked resources

• New memory size warnings:
• Warning threshold at 92% of limit (previously 95%)
• Large file detection for memory items exceeding threshold
• ULTRACLAUDE.md file size monitoring (warns if > 1000 chars)

• Enhanced startup diagnostics showing:
• Working directory information
• Memory usage with specific file warnings
• IDE connection status
• Database availability

• Added graceful-fs for improved file system operations
• Added proper-lockfile for concurrent access control
• Added retry for robust operation retries
• Added signal-exit for better process cleanup

• Better error handling for file system operations
• Improved retry logic for transient failures
• Enhanced process signal handling
• More robust file locking mechanisms

• Fixed duplicate comment issue in generated code
• Improved handling of file system errors (EMFILE, ENFILE)
• Better cleanup on process exit
• Fixed race conditions in token refresh

• Support for custom betas via ANTHROPIC_BETAS environment variable
• Comma-separated list of beta feature flags
• Example: ANTHROPIC_BETAS=feature1,feature2