clay-borg/decisions
tegwick edab11c0e4
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CB-WP-0033: a game is the unit
make trials reported "positions unreachable: 4, target 0 — the recording
exists but the position moved". All four were false. A recording holds one
hash, the final state, and reachability asked whether the note's hash was
in that file — so a mid-game note could never match, and a post-game note
from any but the last game could not either. Instance 8 of the ADR-0018
family: vary only WHEN a note was written and the answer flips, with
nothing having moved.

The root cause was not the metric. play again reused state belonging to a
game: it overwrote the previous game's recording (data loss), never
cleared the journal (game 2's log opened with game 1's commands), and so a
note's command index pointed into a recording without those commands.
Fixing reachability alone would have gone green while a session still
destroyed its own evidence.

A note now binds by (game, after) — an index into the recording's own
commands list, which a reader can replay to. The hash keeps a job as the
integrity check at the end of a game, where it can actually fail. Game 1
keeps the path it was given, so GameDesign §5's documented invocation is
unchanged; later games get -2, -3 and nothing is overwritten. Legacy
5-column logs stay readable and are reported as legacy, never as orphans —
an unsubstantiated orphan claim is the defect being fixed.

All three fixes mutation-proven, including at the call site via a real
two-game session.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-07 17:41:11 +02:00
..
ADR-0002-game-kernel.md T04: adversarial review round + survey corrections + ADR-0002 (reimplement, assimilate patterns) 2026-07-31 01:25:02 +02:00
ADR-0003-cost-accounting.md T02: ADR-0003 — transcript as instrument, commit intervals as attribution 2026-07-31 08:44:27 +02:00
ADR-0004-am4-ratification.md CB-WP-0019 T01/T02: AM-4b asks what a contributor acquires 2026-08-03 19:04:54 +02:00
ADR-0005-assertion-coverage-and-replay.md ADR-0005 + CB-WP-0005: count assertions, not names 2026-07-31 14:25:26 +02:00
ADR-0006-adaptive-control-gates.md ADR-0006 + CB-WP-0009: control gates are experiments 2026-08-01 15:34:27 +02:00
ADR-0007-render-html-not-a-port.md CB-WP-0012-T03: ADR-0007 — render to HTML, and do not declare the port yet 2026-08-02 04:13:35 +02:00
ADR-0008-instrument-corrections.md CB-WP-0013-T02/T03: retire SH-3 as a gate; correct AM-4a and its target 2026-08-02 07:30:14 +02:00
ADR-0009-embed-the-js-engine.md CB-WP-0014-T01/T02: execute the JavaScript — and find AM-4b blind 2026-08-02 07:56:02 +02:00
ADR-0010-what-the-script-may-do.md CB-WP-0017: legible interaction, and the chaos window's verdict 2026-08-02 22:42:45 +02:00
ADR-0011-vendor-the-edition.md CB-WP-0021 T01/T02/T05: the engine plays its own data — AM-7 blocks 2026-08-04 00:47:56 +02:00
ADR-0012-the-design-instrument.md CB-WP-0022 T03: ADR-0012 -- the register already existed, and the rule was 2026-08-05 15:05:51 +02:00
ADR-0013-could-we-have-won.md CB-WP-0025 T03: ADR-0013 -- one world after the game, and difficulty that 2026-08-05 18:47:07 +02:00
ADR-0014-the-commentary-track.md CB-WP-0027 T01-T04: the commentary track 2026-08-06 10:37:46 +02:00
ADR-0015-the-cards-own-words.md CB-WP-0028 T01/T02: the cards say what they do 2026-08-06 17:22:04 +02:00
ADR-0016-the-tokens-on-the-table.md CB-WP-0029 T01-T03: components you can count, and a supply that does not bind 2026-08-07 09:54:20 +02:00
ADR-0017-chaos-window-2-verdict.md ADR-0017: window 2's verdict — the mechanism worked, my account of it did 2026-08-07 10:55:54 +02:00
ADR-0018-a-number-that-does-not-move.md CB-WP-0030: a control for the wrong-subject family 2026-08-07 11:35:41 +02:00
ADR-0019-a-game-is-the-unit.md CB-WP-0033: a game is the unit 2026-08-07 17:41:11 +02:00