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.

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Claude Code v0.2.64

New Features

Tool Call Counter

A new visual indicator that displays the number of tool calls being made during interactions. This can be enabled through the showToolCallCount configuration option, helping users track Claude's tool usage in real-time.

ULTRACLAUDE.md Support (Experimental)

Introduced experimental support for a new user preferences file called ULTRACLAUDE.md. This file:

  • Lives in the .claude directory alongside other configuration files
  • Provides critical user preferences that override default behavior
  • Includes a warning when the file exceeds 1000 characters
  • Can be edited using the /memory command

Example warning display:

⚠️ ULTRACLAUDE.md exceeds 1000 chars (1234 chars) • /memory to edit

Enhanced Permission Debug Info

New permission debugging display that shows detailed information about permission decisions:

  • Rule-based decisions with their sources (CLI argument, local settings, or project settings)
  • Mode information (Default, Accept Edits, or Bypass Permissions)
  • Subcommand results with visual checkmarks (✓) or crosses (✗)
  • Hierarchical display of permission decision reasons

Example output:

Permission debug info:
✓ read-file
  ⎿ allow rule from CLI argument
✗ write-file
  ⎿ Default mode

See this entry in the whole of v0.2.64 →