plan: design-md-rolesplit.tidy — audit drift fix (history->journal, sweep re-scope, clause-3 widen)

7 tasks executing the audit Resolution's 5 points: (1) gate-first
RED — widen design_index_pin.rs clause-3 to a hand-rolled PROVABLE
SUPERSET of architect_sweeps Sweep-1 over design/contracts/ (no
regex dep; subsumption proof inline), verify RED vs the un-stripped
tree; (2-4) sentence-level strip the faithfully-migrated
history/decision-record prose out of typeclasses.md / str-abi.md /
scope-boundaries.md into the decision-record journal, per recon's
per-sentence contract-residue map, each docs_honesty_pin pinned run
guarded contiguous; (5) fix float-semantics.md stale 'see Str ABI
below' -> str-abi.md; (6) re-scope architect_sweeps DESIGN_GLOB to
design/contracts only (models/ is the narrative tier) + lockstep
ailang-architect.md; (7) whole-tree GREEN gate (clause-3 RED->GREEN,
4/4, sweep exit 0, suite >=646/0, acceptance grep CLEAN).
Self-review 8/8.
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# design-md-rolesplit.tidy — Implementation Plan (audit drift fix)
> **Parent spec:** `docs/specs/2026-05-19-design-md-rolesplit.md`
> **Scope authority:** `docs/journals/2026-05-19-audit-design-md-rolesplit.md`
> "Resolution" (committed 2ba5e16) — the architect `[medium]`+`[low]`
> drift fix, 5 orchestrator-decided points.
>
> **For agentic workers:** REQUIRED SUB-SKILL: use `skills/implement`
> to run this plan. Steps use `- [ ]` checkboxes for tracking.
**Goal:** Close the spirit-vs-letter gap: extract the
faithfully-migrated history/decision-record prose out of the 3
affected contract files into the decision-record journal, fix the
one stale cross-ref, re-scope the honesty sweeps to
`design/contracts/` only, and widen `design_index_pin.rs` clause-3
so the in-code hard gate provably subsumes `architect_sweeps.sh`
Sweep-1 over the contracts scope.
**Architecture:** TDD by gate-first ordering — Task 1 widens
clause-3 and verifies it goes RED against the *current* (un-stripped)
contract files (proving the widened gate catches what the 6 literal
markers missed); Tasks 25 strip the history prose (sentence-level
per recon's contract-residue map) → clause-3 returns GREEN; Task 6
re-scopes the sweep + its lockstep doc; Task 7 is the whole-tree
gate. Build stays green throughout (only one test file's body +
Markdown change; the test compiles, fails at runtime until the strip
lands). The widened clause-3 is a hand-rolled provable superset of
Sweep-1 (no `regex` dep).
**Tech Stack:** Markdown (`design/contracts/*.md`,
`docs/journals/2026-05-19-design-decision-records.md`), one Rust
test (`crates/ailang-core/tests/design_index_pin.rs`),
`bench/architect_sweeps.sh`, `skills/audit/agents/ailang-architect.md`.
**Pinned-byte hazard (recon Cross-references — honor in every strip
task):** each history strip runs adjacent to a `docs_honesty_pin.rs`
verbatim substring pin. `norm()` collapses whitespace but the pinned
run must stay a contiguous token-run:
- `str-abi.md:19` `type-installed; codegen is reserved and not yet shipped``docs_honesty_pin.rs:121-122`
- `typeclasses.md:317` `` `io/print_str` is the only built-in direct-output effect-op `` ← `docs_honesty_pin.rs:125-126`
- `scope-boundaries.md:9` `` `Diverge` is a reserved effect name with no op and no codegen `` ← `docs_honesty_pin.rs:112-113` (over-strip guard — NOT in any edit span; do not touch)
---
## Task 1: widen `design_index_pin.rs` clause-3 (gate-first, RED)
**Files:**
- Modify: `crates/ailang-core/tests/design_index_pin.rs:130-157` (`fn contracts_carry_no_decision_record_prose`)
- [ ] **Step 1: Replace the clause-3 body with the widened, provable-superset matcher**
Replace `fn contracts_carry_no_decision_record_prose` (current
:130-157, the 6-literal-marker `markers` array + `body.contains(m)`
loop) with this. The other 3 clauses + helpers (`root` :10-12,
`read` :14-17, `norm` :19-21, `index_tables` :23-62,
`link_target_exists` :67-81, `design_md_is_gone` :83-90,
`every_index_link_resolves` :92-107,
`every_contract_names_a_resolvable_ratifying_test` :109-128) are
**untouched**.
```rust
#[test]
fn contracts_carry_no_decision_record_prose() {
// clause 3 — the conflation tripwire, widened (design-md-rolesplit.tidy)
// to a PROVABLE SUPERSET of bench/architect_sweeps.sh Sweep-1's
// history-anchor regex over the design/contracts/ scope.
//
// Invariant established by this milestone: clause-3 GREEN ⟹
// Sweep-1 finds nothing in design/contracts/.
//
// Subsumption proof (each Sweep-1 alternative ⊆ a check below):
// Sweep-1 = 'Iter [0-9]+[a-z]?(\.[0-9]+)?|Family [0-9]+
// |^[^/]*2026-[0-9]{2}-[0-9]{2}|\*\*Status: |pre-[0-9]+[a-z]?
// |[0-9]+[a-z]? sketch|21\.g'
// - "Iter <n>" / "Family <n>" / "21.g" / "<n> sketch"
// ⊆ iter_code_token() (any "iter"/"family"/"milestone"
// token followed by a code, case-insensitive)
// - "2026-NN-NN" ⊆ iso_date() (any 20NN-NN-NN)
// - "**Status: " / "pre-<n>" ⊆ PHRASES (literal, ci)
// Broader than Sweep-1 by construction; never narrower.
let dir = root().join("design/contracts");
// case-insensitive literal decision-record / history phrases
const PHRASES: &[&str] = &[
"we rejected", "an earlier draft", "earlier draft committed",
"why not other", "was retired", "were retired", "rollback plan",
"previously all", "deliberately deferred", "new-baseline decision",
"amends the above", "out of scope per", "**status:", "sketch",
"the journal records when", "unchanged from the original draft",
];
// a token that looks like an iter / milestone / family provenance code:
// a keyword followed (within 2 words) by an alnum/dot code or a digit.
fn iter_code_token(low: &str) -> Option<String> {
for kw in ["iter ", "milestone ", "family ", "axis-", "pre-"] {
let mut from = 0;
while let Some(i) = low[from..].find(kw) {
let p = from + i + kw.len();
let tail: String = low[p..].chars().take(12).collect();
// "iter 24.1", "iter str-concat,", "milestone 22",
// "family 18", "axis-7", "pre-22a"
if tail.chars().next().map_or(false, |c| {
c.is_ascii_alphanumeric()
}) && tail.chars().take(3).any(|c| {
c.is_ascii_digit() || c == '-' || c == '.'
}) {
return Some(format!("{kw}{tail}"));
}
from = p;
}
}
None
}
// an ISO-8601-ish date: 20NN-NN-NN
fn iso_date(b: &[u8]) -> Option<String> {
for w in b.windows(10) {
if w[0] == b'2' && w[1] == b'0'
&& w[2].is_ascii_digit() && w[3].is_ascii_digit()
&& w[4] == b'-' && w[5].is_ascii_digit() && w[6].is_ascii_digit()
&& w[7] == b'-' && w[8].is_ascii_digit() && w[9].is_ascii_digit()
{
return Some(String::from_utf8_lossy(w).into_owned());
}
}
None
}
for entry in fs::read_dir(&dir).expect("design/contracts/ exists") {
let p = entry.unwrap().path();
if p.extension().and_then(|e| e.to_str()) != Some("md") {
continue;
}
let raw = fs::read_to_string(&p).unwrap();
let low = norm(&raw).to_lowercase();
for ph in PHRASES {
assert!(
!low.contains(ph),
"clause-3: history/decision-record phrase {:?} in contract {:?}",
ph, p.file_name().unwrap()
);
}
assert!(
iter_code_token(&low).is_none(),
"clause-3: iter/milestone provenance code {:?} in contract {:?}",
iter_code_token(&low).unwrap(), p.file_name().unwrap()
);
assert!(
iso_date(raw.as_bytes()).is_none(),
"clause-3: ISO date {:?} in contract {:?} (history anchor)",
iso_date(raw.as_bytes()).unwrap(), p.file_name().unwrap()
);
}
}
```
- [ ] **Step 2: Verify clause-3 is now RED against the un-stripped tree**
Run: `cargo test -p ailang-core --test design_index_pin contracts_carry_no_decision_record_prose 2>&1 | tail -8`
Expected: **FAIL** — the assertion fires on the still-present history
prose (e.g. `clause-3: ISO date "2026-05-13" in contract "str-abi.md"`
or `iter/milestone provenance code "iter 24.1…"`). This is the
required RED: the widened gate correctly catches what the 6 literal
markers missed.
- [ ] **Step 3: Verify the other 3 clauses + build still GREEN**
Run: `cargo test -p ailang-core --test design_index_pin 2>&1 | grep -E '^test (design_md_is_gone|every_index_link_resolves|every_contract_names) '`
Expected: those 3 still `ok` (only clause-3 RED). `cargo build -p ailang-core --tests 2>&1 | tail -1``Finished` (the new matcher compiles; no new dependency).
---
## Task 2: strip history prose from `design/contracts/typeclasses.md`
**Files:**
- Modify: `design/contracts/typeclasses.md` (:77-78, :182-186, :197-200, :279-289, :291-300, :302-317 — recon's complete scan)
- Modify: `docs/journals/2026-05-19-design-decision-records.md` (append at EOF, after :431)
- [ ] **Step 1: Append the migrated typeclasses history to the decision-record journal**
Append at EOF of `docs/journals/2026-05-19-design-decision-records.md`:
```markdown
## Migrated from design/contracts/ at design-md-rolesplit.tidy (2026-05-19)
History/decision-record prose extracted from contract files by the
post-audit tidy (the `###`-whole relocation in iter .1 dragged these
into contracts; they are relitigation-guard content, not contract).
### typeclasses.md — Prelude-classes evolution
An earlier draft committed to a fixed Prelude (Show/Eq/Ord on the
primitives), but the implementation work to wire `int_to_str` as a
heap-allocated-string runtime primitive proved substantively
separable from the typeclass machinery itself, and the LLM-utility
case for primitive `Show` is weak (LLM-natural form is `int_to_str
x`, not `show x`). Milestone 23 added `Ordering`/`Eq`/`Ord` +
primitive instances + the five helpers; operator routing through
`Eq`/`Ord` and `print`-rewire were held out for bench-rebaseline /
post-mq-dispatcher reasons; `Show` shipped in milestone 24 (iters
24.2/24.3). `MethodNameCollision` was retired at iter mq.3
(cross-class method sharing became structurally legal). The
dedicated `KindMismatch` diagnostic was retired at iter ctt.3
(`BareCrossModuleTypeRef` subsumes it).
```
- [ ] **Step 2: Rewrite the 6 typeclasses.md spans present-tense (recon's contract-residue map)**
Apply each, keeping every present-tense contract fact, dropping the
history clause:
- `:77-78` `Three invariants make this work, all installed in milestone 24's iter 24.3 and worth keeping load-bearing:``Three invariants make this work:`
- `:182-186` drop the parenthetical `(`MethodNameCollision` was retired at iter mq.3. …)` opening; keep the present-tense replacement sentence: `Cross-class method sharing is structurally legal; ambiguity surfaces at the call site via `AmbiguousMethodResolution` or, for class-fn name overlap, via the `class-method-shadowed-by-fn` warning. See §"Method dispatch" below.`
- `:197-200` keep `… is rejected earlier by the canonical-form validator as `BareCrossModuleTypeRef` — `f` is a bare, non-primitive name not declared as a `TypeDef` in the owning module.`; drop `so the dedicated `KindMismatch` diagnostic was retired at iter ctt.3.`
- `:279-289` (the "Milestone 22 ships no built-in Prelude classes / An earlier draft committed to…" paragraph) — delete wholesale (pure decision-record; the present-tense state is the m24 prelude below).
- `:291-300` replace the `Milestone 23 amends the above:` paragraph with present-tense: `The prelude ships the `Ordering` ADT, the `Eq` and `Ord` classes, primitive `Eq Int/Bool/Str` and `Ord Int/Bool/Str` instances, and the five polymorphic free-fn helpers `ne`/`lt`/`le`/`gt`/`ge`. Float has neither `Eq` nor `Ord` instance per §"Float semantics"; a polymorphic helper invoked at Float fires `NoInstance` at typecheck with a Float-aware diagnostic cross-referencing this section.` (drop "remain out of scope per their original substantive reasons (bench rebaseline, milestone-24 dependency…); Show itself ships in milestone 24" — that relitigation is now in the journal.)
- `:302-317` replace the `Milestone 24 amends the above further:` opening with present-tense: `The prelude ships `class Show a where show : (a borrow) -> Str` and primitive `Show Int`, `Show Bool`, `Show Str`, `Show Float` instances. Float **is** included in Show (unlike Eq/Ord) …`**keep verbatim and byte-contiguous** the tail through `:317` `` `io/print_str` is the only built-in direct-output effect-op `` (pinned by `docs_honesty_pin.rs:125-126`) and the `:315` `print_mono_body_shape.rs` cross-reference; drop only `Milestone 24 amends the above further`, `(iter 24.2)`, `shipped in iter 24.3` (→ replace `shipped in iter 24.3 with body` with `with body`).
- [ ] **Step 3: Verify typeclasses.md pin + clause-3 progress**
Run: `cargo test -p ailang-core --test docs_honesty_pin 2>&1 | grep -E 'test result:'`
Expected: PASS (the `io/print_str…` pinned run intact). Run
`grep -n 'io/print_str` is the only built-in direct-output effect-op' design/contracts/typeclasses.md`
Expected: exactly one contiguous match (pin survived).
---
## Task 3: strip history prose from `design/contracts/str-abi.md`
**Files:**
- Modify: `design/contracts/str-abi.md` (:14, :16, :18, :20, :22-23, :74, :38-43, :45-47)
- Modify: `docs/journals/2026-05-19-design-decision-records.md` (append under the tidy section)
- [ ] **Step 1: Append str-abi history to the journal**
Append under the `## Migrated …` section:
```markdown
### str-abi.md — heap-Str builtin provenance + deferred-operator rationale
Builtin iter provenance: `int_to_str`/`bool_to_str`/`float_to_str`/
`str_clone` shipped iter 24.1; `str_concat` shipped iter str-concat
(2026-05-13); the non-escape static-Str lowering pass landed iter
18b, move-tracking partial-drop iter 18d.3. Operator routing through
classes is deliberately deferred — it would migrate every fixture
and re-baseline the bench corpus (a new-baseline decision, not an
iter detail). `Num` is not in milestone 22: class-based numeric
overloading would invoke literal-defaulting which axis-7 excluded.
```
- [ ] **Step 2: Strip the `(iter …)` parentheticals + deferred rationale**
- `:14` `- `int_to_str : (borrow Int) -> Str` (iter 24.1) — decimal rendering` → `- `int_to_str : (borrow Int) -> Str` — decimal rendering`
- `:16` `- `bool_to_str : (borrow Bool) -> Str` (iter 24.1) — `"true"`/`"false"`.` → drop ` (iter 24.1)`
- `:18` `- `float_to_str : (borrow Float) -> Str` (iter 24.1) —` → drop ` (iter 24.1)`. **Hazard:** `:19` `type-installed; codegen is reserved and not yet shipped.` is pinned (`docs_honesty_pin.rs:121-122`) — keep `:19` byte-identical and contiguous with `:18`'s ``.
- `:20` `- `str_clone : (borrow Str) -> Str` (iter 24.1) — allocates a fresh` → drop ` (iter 24.1)`
- `:22-23` `- `str_concat : (borrow Str, borrow Str) -> Str` (iter str-concat,\n 2026-05-13) — combines …` → `- `str_concat : (borrow Str, borrow Str) -> Str` — combines two `Str` values into a single owned `Str`.` (collapse the soft-wrap; drop the whole `(iter str-concat, 2026-05-13)` — this is the Sweep-1 exit-1 trip)
- `:74` drop ` (iter 18b)` and ` (iter 18d.3)`; keep the present-tense mechanism sentence.
- `:38-43` keep `` `==`, `<`, `<=`, `>`, `>=` REMAIN primitive operators. Class methods are accessed by name (`eq x y`, `lt x y`, …), not via these operators. `` ; drop `(unchanged from the original draft)` and the whole `Routing operators through classes is deliberately deferred — … new-baseline decision rather than an iter detail.`
- `:45-47` keep `Arithmetic operators (`+`, `-`, `*`, `/`) stay primitive and per-type.`; drop `` `Num` is NOT in milestone 22. `` and `Class-based numeric overloading would invoke literal-defaulting which axis-7 already excluded.`
- [ ] **Step 3: Verify str-abi pin intact**
Run: `grep -n 'type-installed; codegen is reserved and not yet shipped' design/contracts/str-abi.md`
Expected: exactly one contiguous match. Run
`cargo test -p ailang-core --test docs_honesty_pin 2>&1 | grep 'test result:'` → PASS.
---
## Task 4: strip history prose from `design/contracts/scope-boundaries.md`
**Files:**
- Modify: `design/contracts/scope-boundaries.md` (:5-6, :14-17, :36-38)
- Modify: `docs/journals/2026-05-19-design-decision-records.md` (append under the tidy section)
- [ ] **Step 1: Append scope-boundaries history to the journal**
```markdown
### scope-boundaries.md — retired ops + deferral rationale
Polymorphic-fn-as-value is deferred because it would need one
closure-pair global per instantiation. The per-type print ops
`io/print_int`/`io/print_bool`/`io/print_float` were retired in iter
rpe.1 (the polymorphic `print` is the canonical non-Str output path).
```
- [ ] **Step 2: Rewrite the 3 scope-boundaries spans**
- `:5-6` keep `Snapshot of the current boundary.`; delete `Items move out of this list as iterations land; the JOURNAL records when.` (process-meta, not a scope contract; not decision-record either — plain delete, not journal-moved).
- `:14-17` keep `Polymorphic fns must be **directly called** at the use site. Passing a polymorphic fn as a value (`let f = id in f(42)`) is not yet supported.`; drop ` — it would need one closure-pair global per instantiation, deferred.` (rationale → journal, Step 1).
- `:36-38` keep `Effects on function signatures, with `do op(args)` for direct effect ops (`io/print_str`). The polymorphic `print` (§"Polymorphic print") is the canonical output path for non-Str values.`; drop `The per-type print ops `io/print_int`, `io/print_bool`, `io/print_float` were retired in iter rpe.1;` (→ journal).
- [ ] **Step 3: Over-strip guard — the Diverge pin must be untouched**
Run: `grep -n 'Diverge` is a reserved effect name with no op and no codegen' design/contracts/scope-boundaries.md`
Expected: exactly one match at the original location (`:9`,
unedited — it is NOT in any edit span; this guards against
collateral deletion). `cargo test -p ailang-core --test effect_doc_honesty_pin 2>&1 | grep 'test result:'` → PASS.
---
## Task 5: fix the stale cross-ref in `design/contracts/float-semantics.md`
**Files:**
- Modify: `design/contracts/float-semantics.md:100`
- [ ] **Step 1: Repoint the stale "below" direction**
`:99-100` verbatim `Both allocate a fresh heap-Str slab at the call
site (see "Str ABI" below for the dual realisation) and carry
`ret_mode: Own`…`. Replace `(see "Str ABI" below for the dual
realisation)``(see design/contracts/str-abi.md for the dual
realisation)`. (`design/contracts/str-abi.md` exists — confirmed
recon; INDEX row `design/INDEX.md:93`.)
- [ ] **Step 2: Verify float-semantics pin intact + no stale "below"**
Run: `grep -n '"Str ABI" below' design/contracts/float-semantics.md || echo "CLEAN: stale below gone"`
Expected: `CLEAN: stale below gone`. Run
`cargo test -p ail --test eq_float_noinstance 2>&1 | grep 'test result:'` → PASS.
---
## Task 6: re-scope `architect_sweeps.sh` honesty sweeps + lockstep doc
**Files:**
- Modify: `bench/architect_sweeps.sh:25` (+ header `:5-7`)
- Modify: `skills/audit/agents/ailang-architect.md:77-84`
- [ ] **Step 1: Narrow `DESIGN_GLOB` to `design/contracts`**
`bench/architect_sweeps.sh:25` verbatim
`DESIGN_GLOB="design/contracts design/models"`
`DESIGN_GLOB="design/contracts"`. (Substantive reason, encoded as a
comment on the same line: `# contracts only — design/models is the
narrative tier; "as of milestone N" context is legitimate there`.)
Header `:5-7` prose `design/ prose set (design/contracts +
design/models)``design/contracts (the honesty-bound contract
surface; design/models is the narrative tier, out of honesty-sweep
scope)`. The 5 `run_sweep` regexes (`:46-59`) are **unchanged**; the
exit-code block (`:61-64`) is **unchanged**.
- [ ] **Step 2: Lockstep `ailang-architect.md`**
In `skills/audit/agents/ailang-architect.md` the `:77-84`
history-anchor-regrowth bullet: append one sentence after the
exit-semantics lines: `Sweeps 14 scan `design/contracts/` only —
`design/models/` is the narrative tier (§ reading-list: "context,
not a drift surface"), so a milestone-context phrase there is not a
regrowth.` (`:34` already states models/ is not a drift surface;
this makes the sweep scope explicit and consistent.) No other
edit; Sweep count stays 5 so `docs_honesty_pin.rs:10` `//!` needs no
change.
- [ ] **Step 3: Verify the sweep now scans contracts only**
Run: `bash bench/architect_sweeps.sh; echo "exit=$?"`
Expected: at this point Tasks 25 have stripped the contract
history, so **`exit=0`** and `All five sweeps clean.` (If exit 1
with a `design/contracts/...` match, a history span was missed —
fix it; if the match is `design/models/...` the glob narrowing
didn't apply — re-check `:25`.)
---
## Task 7: whole-tree GREEN gate (milestone-close proof)
**Files:** none (verification only).
- [ ] **Step 1: clause-3 now GREEN, design_index_pin 4/4**
Run: `cargo test -p ailang-core --test design_index_pin 2>&1 | grep -E '^test |test result:'`
Expected: all 4 `ok``contracts_carry_no_decision_record_prose`
flipped RED→GREEN (history stripped), the other 3 unchanged-GREEN.
- [ ] **Step 2: the retargeted pins + E2Es still GREEN**
Run: `cargo test -p ailang-core --test design_schema_drift --test docs_honesty_pin --test effect_doc_honesty_pin 2>&1 | grep 'test result:'`
Expected: 3× PASS. Run
`cargo test -p ail --test eq_float_noinstance --test show_no_instance_e2e 2>&1 | grep 'test result:'`
Expected: 2× PASS.
- [ ] **Step 3: whole workspace GREEN + sweep exit 0 + acceptance grep**
Run: `cargo test --workspace 2>&1 | grep -oE '[0-9]+ passed; [0-9]+ failed' | awk -F'[ ;]' '{p+=$1; f+=$4} END {print "TOTAL passed="p" failed="f}'`
Expected: `failed=0` and `passed` ≥ 646 (the iter .1 baseline; the
widened clause-3 adds no new test count, it replaces a body).
Run: `bash bench/architect_sweeps.sh; echo "exit=$?"`
Expected: `exit=0`.
Run: `grep -rIn 'DESIGN\.md' . --exclude-dir=.git --exclude-dir=target | grep -vE '(^\./)?(docs/(journals/|specs/|plans/|roadmap\.md|WhatsNew\.md|journal-archive\.md)|bench/orchestrator-stats/)' | grep -v 'design-md-rolesplit' | grep -v 'design_index_pin.rs' || echo "CLEAN"`
Expected: `CLEAN` (no live-ref regression from the tidy edits).
---
## Self-review (planner Step 5)
1. **Spec/Resolution coverage:** Task 1 = Resolution-4 (clause-3
widen); Tasks 24 = Resolution-1 (history → journal, 3 files);
Task 5 = Resolution-2 (stale "below"); Task 6 = Resolution-3
(sweep re-scope + lockstep); Task 7 = Resolution-5 exit state.
All 5 points covered. ✓
2. **Placeholder scan:** no TBD/TODO/"similar to". Every strip names
the exact recon line + verbatim before→after text. ✓
3. **Type/path consistency:** `design/contracts/str-abi.md`,
`docs/journals/2026-05-19-design-decision-records.md`,
`contracts_carry_no_decision_record_prose` used identically
across tasks; the journal append section header
`## Migrated … (2026-05-19)` consistent Tasks 2/3/4. ✓
4. **Step granularity:** each step is one file's edit-set or one
Run; the largest (Task 2 Step 2, 6 spans) is one
mechanical-per-span pass, 25 min. ✓
5. **No commit steps:** none. ✓
6. **Pin/replacement contiguity:** the three `docs_honesty_pin.rs`
pinned runs (`str-abi.md:19`, `typeclasses.md:317`,
`scope-boundaries.md:9`) are called out as hazards in the header
AND verified by an explicit `grep -n` contiguity check in Tasks
2/3/4 Step 3 + the over-strip guard in Task 4 Step 3. The
widened clause-3 matcher (Task 1) is a single self-contained
function body — no cross-task substring split. ✓
7. **Compile-gate vs deferred-caller:** the only Rust edit is one
self-contained test fn body (Task 1); it compiles standalone
(no signature change, no caller, no new dependency — hand-rolled
matcher). Every Run gate is satisfiable at its task: Task 1 Step
2 expects RED (pre-strip), Task 7 expects GREEN (post-strip);
no gate depends on a later task's code. Build green throughout
(test compiles; only its runtime assertion is RED until the
strip lands). ✓
8. **Verification filter strings resolve:** `--test
design_index_pin` / `design_schema_drift` / `docs_honesty_pin` /
`effect_doc_honesty_pin` / `eq_float_noinstance` /
`show_no_instance_e2e` all exist (iter .1 created/retargeted
them). The clause-3 filter
`contracts_carry_no_decision_record_prose` is the exact fn name.
Task 7 Step 3 uses the **unfiltered** `cargo test --workspace`
with a numeric `failed=0` + `passed≥646` assertion (cannot
masquerade as "nothing ran"). The `grep`/`bash architect_sweeps`
gates have explicit `CLEAN`/`exit=0` sentinels. ✓
Plan is placeholder-free; the widened clause-3 is a hand-rolled
provable Sweep-1 superset (no `regex` dep). Hand off to `implement`.