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

Four files are now flatly off-limits to writes

You'll notice
Useful4 Signal4
Permissions

Four paths including host credentials and seed-admin can never be written, not even with approval.

What

Writing the host credentials file, writing to memory while memory is paused, writing anywhere under ~/.claude/seed-admin, and writing adopt.json are now unconditional refusals with fixed explanations. These are not prompts you can approve, and no classifier can approve them either.

Details
  • Each denial carries a fixed explanation naming why the file is harness-managed.
  • adopt.json is described as a handoff file the harness owns.
Evidence

adopt.json is the bg-fork handoff carrier and is managed by the harness; it cannot be written directly

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 →