CLAUDE_CODE_DISABLE_ADVISOR_TOOL

Updated October 13, 2026 by Alex Sorokoletov

CLAUDE_CODE_DISABLE_ADVISOR_TOOL is a Claude Code environment variable: Disables what appears to be an internal advisory tool. The "Advisor" pattern suggests a meta-tool that provides guidance or recommendations to the model during execution — possibly a tool that offers coding suggestions or best-practice hints. Added between v2.1.79 and v2.1.83 and still present in v2.1.294. It is listed in the official reference.

How to set it

For one session, export it in the shell that starts Claude Code:

export CLAUDE_CODE_DISABLE_ADVISOR_TOOL=<value>
claude

To apply it to every session, add it to the env object of a settings file:

// ~/.claude/settings.json
{
  "env": {
    "CLAUDE_CODE_DISABLE_ADVISOR_TOOL": "<value>"
  }
}

Release notes that mention it

• Claude Code v2.1.83 — 8 New Environment Variables: Security Hardening and the 40-Fix Mega Release

Related variables

• CLAUDE_CODE_ENABLE_EXPERIMENTAL_ADVISOR_TOOL: Enables the experimental Advisor Tool — a server-side tool with its own advisorModel config option.
• CLAUDE_CODE_DISABLE_BG_SHELL_PRESSURE_REAP
• CLAUDE_CODE_DISABLE_INLINE_SHELL_RM_PROMPT: Turns off the new prompt that catches a dangerous rm inside an inline bash -c or sh -c script.
• CLAUDE_CODE_DISABLE_POWERSHELL_CMD_RM_DENY
• CLAUDE_CODE_DISABLE_WEB_FETCH: Turns off the WebFetch tool.
• CLAUDE_CODE_DISABLE_WINDOWS_SHELL_LAUNCHER
• CLAUDE_CODE_EMIT_TOOL_USE_SUMMARIES: Emit tool use summary events.
• CLAUDE_CODE_MAX_TOOL_USE_CONCURRENCY: Max concurrent tool executions; default 10.

Frequently asked questions

All variables, searchable: Claude Code environment variables.