Claude Code v2.1.73 Released - Tool Search Enhancement and /copy Expansion

Anthropic released Claude Code v2.1.73 on March 10, 2026. This version includes third-party proxy support for tool search, /copy and /plan command enhancements, effort level simplification, VSCode extension improvements, and numerous bug fixes.

Key Changes

Tool Search Third-Party Proxy Support

Tool search now bypasses the third-party proxy gate when the environment variable is set. The previously used CLAUDE_CODE_PROXY_SUPPORTS_TOOL_REFERENCE has been removed.

/copy Command Enhancement

Direct File Write: The /copy command now includes a w key to write the focused selection directly to a file, bypassing the clipboard. This is useful over SSH connections.

/plan Command Enhancement

Optional Description Argument: The /plan command now accepts an optional description argument (e.g., /plan fix the auth bug) that enters plan mode immediately.

Plugin Command Alias

claude plugins is now available as an alias for claude plugin.

ExitWorktree Tool Added

New ExitWorktree tool to leave an EnterWorktree session.

Cron Job Disable Feature

The CLAUDE_CODE_DISABLE_CRON environment variable allows immediately stopping scheduled cron jobs mid-session.

Bash Auto-Approval List Expansion

New Commands Added: lsof, pgrep, tput, ss, fd, and fdfind have been added to the bash auto-approval list, reducing permission prompts for common read-only operations.

Marketplace Git URL Support Expansion

Marketplace git URLs without .git suffix (Azure DevOps, AWS CodeCommit, etc.) are now supported.

Agent Tool Model Parameter Restored

The model parameter on the Agent tool has been restored, enabling per-invocation model overrides.

Effort Level Simplification

Three-Tier System: Effort levels have been simplified to low/medium/high, with the max level removed. New symbols (○ ◐ ●) have been introduced, displaying as brief notifications instead of persistent icons. Use /effort auto to reset to default.

/config Command Improvements

Usability Improvements: The /config command now supports Escape to cancel changes, Enter to save and close, and Space to toggle settings.

History Feature Enhancement

Session Priority Display: Up-arrow history now shows current session’s messages first when running multiple concurrent sessions.

Voice Input Accuracy Improvements

Voice input transcription accuracy has been improved with better recognition of repository names and common dev terms (regex, OAuth, JSON).

Bundle Size Reduction

Bundle size has been reduced by approximately 510KB.

CLAUDE.md HTML Comment Handling

CLAUDE.md HTML comments (<!-- ... -->) are now hidden when auto-injected. Comments remain visible when read with the Read tool.

Bug Fixes

Numerous Issues Fixed

• Fixed slow exits when background tasks or hooks were slow to respond
• Fixed agent task progress stuck on “Initializing…”
• Fixed skill hooks firing twice per event
• Fixed various Voice mode issues (input lag, false “No speech detected” errors, stale transcripts)
• Fixed —continue not resuming from the most recent point after —compact
• Fixed several bash security parsing edge cases
• Fixed several plugin issues (Windows OneDrive EEXIST errors, marketplace blocking user-scope installs)
• Fixed feedback survey appearing too frequently in long sessions
• Fixed numerous additional issues

VSCode Extension Improvements

• Fixed scroll speed in integrated terminals not matching native terminals
• Fixed Shift+Enter submitting input instead of inserting a newline for users with older keybindings
• Added effort level indicator on the input border
• Added vscode://anthropic.claude-code/open open a new Claude URI handler to Code tab programmatically

Community Response

The v2.1.73 release has been well-received as a continuous improvement update. Users have praised the effort level simplification as “more intuitive,” and the bash auto-approval expansion contributes to efficiency in everyday development workflows.