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.
The CLAUDE_CODE_MAX_RETRIES environment variable is now validated to ensure it parses to a finite integer ≥ 0, preventing invalid values from causing unexpected behavior.
Evidence
Retry validation (search for "Number.isFinite" near the CLAUDE_CODE_MAX_RETRIES handler)
Strings lifted out of the shipped bundle, so the claim above can be checked against them.