The 3020-line docs/DESIGN.md is replaced by the design/ ledger:
design/INDEX.md (sole addressable spine, typed Contracts+Models tables,
polymorphic links — prose file OR authoritative source //!), 14
design/contracts/*.md test-linked invariants + 3 source-link-only
contracts (mangling/env-construction/qualified-xref, no prose file —
code is SoT), 5 design/models/*.md whitepapers, and
docs/journals/2026-05-19-design-decision-records.md (the
relitigation-guard archive — every why/rejected/does-not-do/rollback/
empirical ### moved out at ###-granularity). Clean cut: git rm
docs/DESIGN.md, no stub.
RED-first crates/ailang-core/tests/design_index_pin.rs — the 4-clause
anti-regrowth spine (DESIGN.md-gone / every-INDEX-link-resolves /
every-contract-names-a-resolvable-ratifier /
contracts-carry-no-decision-record-prose) — demonstrably RED before,
GREEN after. Build-atomic by task ordering: design_schema_drift.rs's
include_str! (the only compile-time consumer) retargeted to
design/contracts/data-model.md BEFORE the deletion; its
## Data model/## Pipeline slicer dropped (a simplification the split
enables). 2 NoInstance diagnostics + 2 lockstep E2Es retargeted to
design/contracts/{float-semantics,typeclasses}.md. ~12 agent reading
lists + 5 SKILL bodies + CLAUDE.md + skills/README.md + ~25
code/C/.ail/spec comment xrefs retargeted; OQ7 dangling 'Iter 13b'
cite deleted (no forward target — a pointer would be fiction).
honesty-rule.md rewritten so the rule names the new home
(rationale->journals), resolving the recon-found internal
contradiction; the two docs_honesty_pin.rs:70,72 pinned phrases kept
verbatim+contiguous.
Boss-verified independently: cargo test --workspace 646 passed /
0 failed; design_index_pin 4/4; acceptance grep CLEAN of live
DESIGN.md refs (residuals = only the spec-mandated clause-4
deletion-enforcer). 2 DONE_WITH_CONCERNS routed to the mandatory
milestone-close audit: (a) str-abi.md:23 '(iter str-concat,
2026-05-13)' provenance stamp trips advisory architect_sweeps Sweep-1
— Boss-confirmed byte-identical to DESIGN.md@deeffb1:2062-2065, a
faithfully-migrated PRE-EXISTING anchor (regexes verbatim, only path
retargeted), NOT split-introduced — RATIFY-or-tidy at audit; (b) a
now stale-direction intra-prose 'see Str ABI below' cross-ref in
float-semantics.md — audit-adjudication candidate. Plan defect noted:
Task 9 Step 4's verbatim acceptance grep used a ^./ anchor not
matching the system's grep -rIn output; substance re-verified CLEAN.
Spec grounding-check PASS x2. Journals INDEX + decision-records
pointer appended (Boss-only).
Resolves the M2 milestone-close audit's only actionable drift item
(architect [medium] DESIGN.md:2266 stale (M1) header vs its now-M2
present-tense body + coupled [low] :2354 xref). Current-state-mirror:
the section describes the current embedding ABI (M1+M2), so the
milestone tag is internal history, not current state.
5 live-coupling sites renamed in lockstep, 3 files:
- docs/DESIGN.md:2266 header '## Embedding ABI (M1)' -> '## Embedding ABI'
- docs/DESIGN.md:2354 schema-block xref 'see §"Embedding ABI"'
- docs_honesty_pin.rs:134 test comment + :136 assert-message
- crates/ailang-core/specs/form_a.md:89 live forward-xref (Boss-added
5th site: plan-recon-undercount countermeasure surfaced a live
dangling-xref the architect's 3-site scope missed; folded in on
the merits — a half-rename contradicts the tidy's own thesis)
docs_honesty_pin.rs:135 asserted substring (the rename-immune
DESIGN.md body sentence) byte-verbatim untouched. Committed
append-only history NOT falsified (Boss-verified diff = 3 content
files + journal + stats only). Pins green before AND after
(docs_honesty_pin 5/0, design_schema_drift 8/0). Zero
language/checker/codegen/schema change.
Resolves the M1-fieldtest [friction] + [spec_gap]#1 shared root:
form_a.md stated an unconditional 'every (fn ...) param needs an
(own/borrow) mode' rule in 4 places, contradicting shipped checker
behaviour (scalars take and require bare (con Int); a mode on a
scalar trips body-pointing use-after-consume/consume-while-borrowed).
All 4 sites rewritten symmetric to the existing return-type carve-out;
DESIGN.md gains the bare-scalar export-param rule + a corpus-grounded
Form-A snippet; RED-first anti-regrowth pin via FORM_A_SPEC + norm().
Zero language/checker/codegen change. Plan 4c266a6.
Brummel