[AdaWorldAPI]

This PR contains plans, board entries and one Claude Code command. It changes no code. Base: main c8fb3bf.

In short: thinking with a git API, at the cost of a sparse write and a merge on read.

1. D-TGA correction (thought-git-api-v1.md, § "Correction: the slot axis and the witness pointer")

• The axis is 64 thought slots, and 64 is a budget, not a target. Slot 0 is main, the merged state a frame starts from; slots 1..=63 can hold any thought. Like a cap on git branches, the budget allows up to 64 thoughts and requires none.
• Rung is not a lane. It is a level implied by a claim, and it can change within one thought session. The ten static rung lanes (alpha_tunnel.rs) are a deprecated model. O5's wording "beside the 10 rung lanes" is corrected here, in ce64-hypothesis-layers-v1.md and in STATUS_BOARD D-HL-1.
• W (CE64 53..58) is the thought layer, 0..63: 0 givens, 1..63 hypotheses, as decided on 2026-10-17 in docs: epistemic frontier capstone map + O1/O3 decisions (46..49 activation, W = thought layer) #1597. W names the lane a state belongs to and points nowhere. A delta's dependence is its source bitset (D-HL-3); how a state was derived is the thought's program. The competing W readers in code are listed for migration:
  • MailboxSoA::apply_edges's corpus filter;
  • deepnsm-v2's WitnessTable index;
  • forward / syllogize, which return W = 0.
• CE64 is an ISA contract, not a storage contract (operator, 2026-10-20). This closes capstone §8 row 4.
  • In the hot path, inside a live thought, the edge is thought-aware.
  • A sealed copy in Lance keeps the bits exact and keeps their ISA meaning, like BF16 on disk. Only W loses its referent, because slots recycle.
  • The thinking styles used and the reasoning replay live in the thought, or are linked to the kanban lane's Lance versions.
• At the ceiling, a new thought means squashing or landing an existing one, never a 65th slot. land relabels the landed cells to 0 and squash_into relabels them to the surviving slot. A label is qualified by the base version (slot 0) or the slot generation (1..=63). ThoughtCommitId is never reused.
• Squash-or-land policy is OPEN. It must read presence bits. The earlier WORKING-MODEL, a dependency graph over w_slot, is struck and kept quoted for the record.

2. D-TGB plan, the basics from the ideal state (thought-git-basics-v1.md, D-TGB-0..6)

• No stale branches. A slot is taken only at the Rubicon crossing (Planning → CognitiveWork, KanbanColumn) and freed at Commit, Plan or Prune. Squash, prune and garbage collection are kanban outcomes, not a background job.
• Commit lands through LanceCycleWriter.
  • Every Commit reached in one supervisor cycle goes into that cycle's single batch and one Lance version.
  • A sealed batch is addressed by (version, thought id within the batch), never by slot.
  • Today the calcify step of KanbanColumn::Commit is only declared; this provides it.
• DurableRef is the dataset plus Lance's own Ref::Version(branch, version).
• Receipts, not history. A thought's receipt is (base ref, template or program id, seeds, slot generation); the template or program id records the thinking styles used. Once the thought lands, the receipt links to the kanban lane version. Replaying a receipt must reproduce the thought's writes, which is what makes discarding safe.
• Reads are resident folds, with Lance's delta() as the oracle for diffs across durable versions.
• MemWAL is an optional Commit path for use past the D-WAL crossover. It waits on D-LNC-7.
• Datalog awareness comes later.

The plan also records what Lance 13 / LanceDB 0.40 provide, read from the crate sources. Lance creates branches in two phases and can leave zombie branches, so the plan does not use one Lance branch per thought.

3. /board command (.claude/commands/board.md)

With /board, a session:

• reads the messages addressed to it on the shared Linear blackboard ("AdaWorldAPI | CC Blackboard", inbox EXO-50);
• updates the board's plan and open-end issues from STATUS_BOARD.md, ISSUES.md and the plans' status lines;
• lists the open items as low-hanging, high-signal or heavy.

GitHub stays canonical: the sync only goes GitHub → Linear, and a board message is information, not authorization.

Board

• STATUS_BOARD: rows D-TGB-0..6 and D-HL-1, plus two new falsifiers on D-TGA-1.
• Plan-index entries.
• Board entries 2026-10-20-d-tga-slot-axis-witness-pointer, 2026-10-20-d-tgb-thought-git-basics and 2026-10-20-ce64-isa-not-storage, each with its dated corrections.
• Capstone: §8 row 4, the field-table row for bits 53..58, and the budget row.
• Gates: the entries index is current (386 rows); CI passes on 5b8b377e (no-shrink, citation-decay, added-plans-have-dids, regenerate-and-diff).

🤖 Generated with Claude Code

https://claude.ai/code/session_01VncKoyG6JkpsoqhqTGTv3f

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