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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 v2.0.10

Environment Variable Parsing for MCP Commands

What changed: Enhanced validation of environment variable formats in claude mcp add command

Details:

  • New OI6() function validates KEY=value format using regex /^[A-Za-z_][A-Za-z0-9_]*=/
  • Validates variable names start with letter or underscore
  • Variable names can contain letters, numbers, and underscores
  • Prevents malformed environment variables from being added to MCP server configurations
  • Evidence: OI6() at line 386305 in v2.0.10 (did not exist in v2.0.9)

See this entry in the whole of v2.0.10 →