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 v2.1.248 Home All releases olderv2.1.247 v2.1.250newer
Claude Code v2.1.248

IDE code execution and diagnostics tools listed by name

Under the hood
Useful2 Signal3
IDE Integration not in their notes

Two IDE tools for running code and reading diagnostics are now named constants for special-casing.

mcp__ide__executeCodemcp__ide__getDiagnostics
What

Two separate lists now name mcp__ide__executeCode and mcp__ide__getDiagnostics as real constants where previously there were no-op placeholders, so these two IDE tools are special-cased somewhere in permission or tool-filtering.

Evidence

["mcp__ide__executeCode", "mcp__ide__getDiagnostics"]

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

See this entry in the whole of v2.1.248 →