Slate Hyperscript Tranche 4 Execution

Goal

Close packages/slate-hyperscript honestly on top of the settled slate core and slate-history claims:

• keep fixture/runtime construction behavior
• keep the small public creation surface honest
• stop relying on stale Mocha-era proof language

Current Read

• slate-history is no longer the tranche-4 blocker:
  • 2026-04-19-slate-history-tranche-4-execution.md
• slate-hyperscript now has both direct owners live:
  • packages/slate-hyperscript/test/index.spec.ts
  • packages/slate-hyperscript/test/smoke-contract.ts
• the package closeout stack is green in the same turn:
  • bun test ./packages/slate-hyperscript/test/index.spec.ts
  • bun test ./packages/slate-hyperscript/test/smoke-contract.ts
  • bunx turbo build --filter=./packages/slate-hyperscript
  • bunx turbo typecheck --filter=./packages/slate-hyperscript
  • bun run lint:fix
  • bun run lint
• the real gap was proof-owner honesty, not runtime breakage:
  • the active corpus carried draft smoke.js behavior
  • the direct Bun-owned smoke owner now exists
  • the tranche docs no longer need to lean on older Mocha-era closure language

Current Tactic

• keep the package narrow
• recover a direct Bun-owned smoke proof owner for the draft smoke.js rows
• sync tranche docs and ledgers to the current owner stack
• do not invent runtime churn if the package behavior is already honest

Remaining Kept-Owner Ledger

None blocking this slate-hyperscript lane.

No current explicit-cut or post RC rows were needed for package closure.

Current Gates

• correctness owner:
  • bun test ./packages/slate-hyperscript/test/index.spec.ts
• direct smoke owner:
  • bun test ./packages/slate-hyperscript/test/smoke-contract.ts
• package closeout gates:
  • bunx turbo build --filter=./packages/slate-hyperscript
  • bunx turbo typecheck --filter=./packages/slate-hyperscript
  • bun run lint:fix
  • bun run lint

Next Move

1. treat slate-hyperscript as settled enough to stop blocking tranche 4
2. carry its kept small-surface/runtime-construction claim forward
3. move to slate-dom as the next package in order

Continue Checkpoint

• verdict:
  • replan
• latest landed API redesign owner:
  • draft smoke rows are now directly owned by packages/slate-hyperscript/test/smoke-contract.ts
  • fixture parsing and cursor/selection construction remain owned by packages/slate-hyperscript/test/index.spec.ts
• latest hard-cut or demotion decision:
  • none were needed for this package lane
• remaining unresolved API decisions:
  • no blocking slate-hyperscript package decisions remain in this lane
• latest current-vs-legacy compare read:
  • no dedicated slate-hyperscript compare owner exists or is needed for the current claim width
• drift read:
  • current work still points toward the better API
  • more packages/slate-hyperscript churn here would be invented work, not progress
• next move after this checkpoint:
  • stop here for this execution owner
  • create or switch to the next tranche/package owner when the user wants

Repeated Continue Rule

• this execution owner is complete
• repeated continue calls against this same owner without a new scope or new contrary evidence should return:
  • replan
• reason:
  • the next honest move changes package ownership
  • more packages/slate-hyperscript churn here would be invented work, not progress
• repeat-count:
  • 0