Source Intelligence

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

All of v2.1.83 Home All releases olderv2.1.81 v2.1.84newer
Claude Code v2.1.83

Advisor Tool

Feature flag
tengu_sage_compass Not enough to say

Nothing here resolved what this flag was doing on this version, so nothing here should be read as on or off.

This account: no value returned · anonymous baseline: no value returned · compiled default in v2.1.83: no gate table built for this version

These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.

Read once, for one account on one subscription tier, against v2.1.83. It isn't a statement about your account. What a flag value here can and cannot tell you

What

A server-side tool backed by a stronger reviewer model that automatically sees your entire conversation history. When invoked, the advisor reviews your work and provides feedback before you commit to an approach.

Usage
# Enable the advisor with a model
/advisor opus

# Check current advisor status
/advisor

# Disable the advisor
/advisor unset

# Via CLI flag
claude --advisor opus
Details
  • The advisor tool takes no parameters — it automatically receives the full conversation context
  • Designed to be called before substantive work (writing code, committing to an interpretation), when stuck, or when you believe a task is complete
  • Can be disabled via the CLAUDE_CODE_DISABLE_ADVISOR_TOOL environment variable
  • Only available when the server enables this capability; the /advisor command appears when user configuration is permitted
  • Supports Opus 4.6 and Sonnet 4.6 class models as advisor models
Evidence

Advisor tool feature (search for "advisor-tool-2026-03-01", "tengu_sage_compass", "/advisor")

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.83 →