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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 v2.1.219

Plan mode can carry a session workshop document

Not switched on
Useful4 Signal5
Plan Mode Notable

Plan mode could offer an interactive published page where your choices feed back into the plan.

A full workshop-document plan flow with offer text, publish exit and resume recovery, gated off absent remote values.

Feature flag
tengu_cedar_transom Not enough to say

Nothing here resolved what this flag was doing on this version, so nothing here should be read as on or off.

This account: no value returned · anonymous baseline: no value returned · compiled default in v2.1.219: on

These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.

tengu_larch_pavise Off in both readings

The flag server returned off for the account this site reads and for the anonymous baseline. A reading of off cannot rule out a rollout these two readings sit outside of.

This account: off · anonymous baseline: off · compiled default in v2.1.219: on

These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.

Read once, for one account on one subscription tier, against v2.1.219. It isn't a statement about your account. What a flag value here can and cannot tell you

What

Plan mode can offer to plan through a published interactive workshop page whose choices feed back into the session, backed by a .workshop.md document alongside the plan file.

Details
  • Plan-mode attachments gained workshopOfferDocPath and workshopActiveDocPath, which inject the offer text and the active-session text respectively.
  • Sparse reminders append "and the session's workshop document (…, editable and publishable as previously granted)"; the full form grants create/edit plus Artifact publish for it.
  • Turn-ending rules gain a third exit, publishing the workshop and ending the turn, and Phase 4's "only file you can edit" line becomes conditional.
  • The plan file stays canonical; the offer is made once, after judging whether the task has substantive decision points. Forking a plan also copies the .workshop.md sibling, and session resume can rebuild the doc from a file snapshot ("Workshop doc recovered from file snapshot").
  • Artifact publishing paths thread a workshopSurface flag through their result payloads. New telemetry: plan_workshop_offer and plan_workshop_active.
  • Gated on Wst() = Xde() && !bV() && !Ke("tengu_cedar_transom",!1) && Ke("tengu_larch_pavise", !1), so off absent remote values.
Evidence

A decision workshop is in progress for this session, ## Interactive Workshop Option, workshopActiveDocPath

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 v2.1.219 →