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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 v2.1.238

Plugin binaries are cached by content hash and retried on failure

You'll notice
Useful3 Signal2
Plugins

Plugin binaries are cached and verified by hash, and flaky downloads retry automatically.

What

Downloaded plugin binaries now land in a cache entry named by their sha256 and verified against it, staged in a temporary directory first and written with restrictive permissions, then swept on a time-to-live. Transient download failures retry on a backoff schedule bounded by a deadline.

Details
  • Staging directories are prefixed .binary-staging-.
  • The hashed-storage path is conditional; a direct filesystem fallback is retained.
  • Storage failures are wrapped in a distinctly named error rather than surfacing raw.
Evidence

.binary-staging-

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

See this entry in the whole of v2.1.238 →