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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 v1.0.120

Tool Output Schemas

What: Several tools now include explicit outputSchema definitions alongside their existing inputSchema, improving type safety and documentation.

Tools updated:

  • Read tool: outputSchema at th6 at line 381201
  • Edit tool: outputSchema at yGB at line 395229
  • MultiEdit tool: outputSchema at xo6 at line 395850
  • Write tool: outputSchema at co6 at line 396008
  • Bash tool: outputSchema at np6 at line 387039
  • Grep tool: outputSchema at sW5 at line 420771
  • WebFetch tool: outputSchema at bW5 at line 417012
  • SlashCommand tool: outputSchema at XX5 at line 425324
Evidence

Multiple schema definitions across tool implementations

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

See this entry in the whole of v1.0.120 →