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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 v2.1.221

Plan mode tracks a workshop doc path and offers a prototype path

Not switched on
Useful2 Signal3
Plan Mode

Plan mode now remembers your workshop doc and can offer a prototype path alongside it.

A plan-mode prototype offer exists behind session checks that do not resolve in this build.

What

Plan-mode re-entry now carries the workshop document path and can offer a prototype variant alongside the existing workshop offer.

Details
  • The re-entry attachment includes workshopDocPath.
  • The reminder is forced to full when that path changed since the previous attachment, not only on the periodic schedule.
  • The workshop offer now additionally requires skills-as-tools availability.
  • A new plan_prototype_offer event fires for the prototype variant, next to plan_workshop_offer. Guarded by several session checks that could not be fully resolved.
Evidence

plan_prototype_offer

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

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.221 →