@@ -88,23 +88,24 @@ preserved), and `main` is the working branch:
 
 ## Language policy
 
-Public project. **English by default** for code, comments, identifiers,
-commit messages, README, ROADMAP, ADRs, `.dev/`, `.claude/`, all
-configuration. **Japanese** for chat replies, `private/notes/<task>.md`
-per-task notes, and (when re-activated) `docs/ja/learn_clojurewasm/NNNN_*.md`
-learning narratives. The per-chapter cadence is currently **dormant**
-per ADR-0025; existing chapters live read-only under
-[`docs/ja/archive/`](../docs/ja/archive/).
-
-Don't mix Japanese into English docs. In `docs/ja/`, body is Japanese;
-code blocks keep their original English identifiers.
-
-Chat replies default to Japanese via the project output style
-[`.claude/output_styles/japanese.md`](../.claude/output_styles/japanese.md)
-(activated by `outputStyle: "Japanese"` in `.claude/settings.json`). That
-single setting is sufficient — the redundant SessionStart re-injection was
-removed. To work in another language, override `outputStyle` per-machine in
-`.claude/settings.local.json` (gitignored); code / commits / docs stay English.
+Public project, **English everywhere**: code, comments, identifiers, commit
+messages, chat replies, `private/notes/<task>.md`, README, ROADMAP, ADRs,
+`.dev/`, `.claude/`, configuration.
+
+Japanese was the original author's working language. This fork's maintainer
+does not read it, so as of 2026-09-04 the Japanese policy is retired: the
+`outputStyle: "Japanese"` setting is gone from `.claude/settings.json`, and
+per-task notes are written in English.
+
+`docs/ja/archive/` stays as it is. It is chaploud's authored work, the
+per-chapter cadence is dormant per ADR-0025, and archived material is not
+retranslated.
+
+### Writing style
+
+No em-dashes, no `...` ellipsis character, no LLM padding. Use a comma, a
+colon, parentheses, or a full stop. State the fact and stop. Long rationale
+goes in an ADR or hive memory, not inline in a README.
 
 ## Working agreement
 
@@ -364,10 +365,10 @@ Then:
 **Step 7 — Per-task note** (written from hot context)
 
 Copy `.claude/skills/code_learning_doc/TEMPLATE_TASK_NOTE.md` to
-`private/notes/<phase>-<task>.md`. Fill in: 一行サマリ / 詰まった
-ポイント (1-3 個) / 教科書との対比 (Step 0 survey の要約) /
-設計判断 / 章を書くときに必ず触れる点. Gitignored. Then immediately
-begin the next task's Step 0.
+`private/notes/<phase>-<task>.md`. Fill in, in English: summary /
+what was non-obvious (1-3 items) / comparison against the textbook
+codebases (the Step 0 survey, condensed) / design decisions / what to cite
+later. Gitignored. Then immediately begin the next task's Step 0.
 
 ### When the active work unit completes (gap-area model, ADR-0142)
 
 
@@ -2,8 +2,8 @@
 paths:
   - "src/**/*.zig"
   - "src/lang/clj/**"
-  - "scripts/clj_diff_sweep.sh"
-  - "scripts/check_corpus_regression.sh"
+  - "scripts/clj_diff_sweep.clj"
+  - "scripts/corpus_regression.clj"
   - "scripts/check_accepted_divergences.sh"
   - ".dev/accepted_divergences.yaml"
   - "test/diff/clj_corpus/**"
 
@@ -6,20 +6,21 @@ two disciplines that keep that work honest.
 
 ## The harness — don't hand-roll the loop
 
-`scripts/clj_diff_sweep.sh` is the SSOT for "run these exprs through both
+`scripts/clj_diff_sweep.clj` is the SSOT for "run these exprs through both
 runtimes and show me the diffs". Do NOT write ad-hoc
-`for e in …; cljw vs clj` shell loops — they are unreviewable, throw away
+`for e in …; cljw vs clj` loops — they are unreviewable, throw away
 the result, and repeatedly re-derive the same methodology.
 
 ```sh
-bash scripts/clj_diff_sweep.sh exprs.txt              # one bare value-expr per line
-printf '%s\n' '(map inc [1])' | bash scripts/clj_diff_sweep.sh -
-bash scripts/clj_diff_sweep.sh exprs.txt --corpus seqfns   # append OKs to a corpus
+bb scripts/clj_diff_sweep.clj exprs.txt              # one bare value-expr per line
+printf '%s\n' '(map inc [1])' | bb scripts/clj_diff_sweep.clj -
+bb scripts/clj_diff_sweep.clj exprs.txt --corpus seqfns   # append OKs to a corpus
 ```
 
-Methodology baked into the script (header has the detail): clj runs ONCE
-over a batch (one `(prn EXPR)` per line); cljw runs one expr at a time;
-both are `timeout`-wrapped; bound every seq producer with `(take N …)`.
+Methodology baked into the Clojure harness: persistent clj and cljw nREPL
+servers receive one bounded request per expression; process ownership and
+cleanup stay in one babashka boundary. Bound every seq producer with
+`(take N …)`.
 
 ## Discipline 1 — corpus-backed discharge (anti D-177)
 
@@ -30,7 +31,7 @@ mechanically re-checkable. The 2026-06-02 audit found **D-177 discharged
 with `take-while`/`take-nth`/`partition-by` listed as done when they were
 not** — a false-positive-discharge lie. The fix for that lie class is:
 *never list coverage you did not probe*, and leave the probe behind as a
-corpus line. `scripts/check_corpus_regression.sh` re-runs every corpus and
+corpus line. `scripts/corpus_regression.clj` re-runs every corpus and
 fails on any DIFF, so a regression (or an over-claim) surfaces.
 
 ## Discipline 2 — big-bang, don't drip-feed
 
@@ -32,8 +32,10 @@ found the cost/risk axis is **unit-vs-e2e, not additive-vs-shared**:
   the only part worth batching.
 
 So the smoke = the fast correctness core (both-backend `zig build test`
-+ zlinter + `build_cljw` + `corpus_regression` + **the changed e2e
-step(s)**). Because it carries the full diff oracle, the smoke
++ zlinter + `build_cljw` + `corpus_regression` + `test_reach`/`e2e_reach`
++ the measured-near-zero static invariants `doc_coverage`, `epipe_head`, and
+`gate_parity` + **the changed e2e step(s)**). Because it carries the full diff
+oracle, the smoke
 **authorises shared-code commits too** — the old "additive vs risky"
 split is retired. Only the full e2e suite is deferred.
 
@@ -139,7 +141,8 @@ run OUTSIDE both gate tiers. Fixed cadence so they cannot silently rot
 chain** — plus on demand after a compat-surface campaign lands.
 
 Stale if: the smoke stops being ≤ ~60s or the full gate's e2e-vs-unit
-cost asymmetry changes (re-measure); a new shared-risk surface the smoke
+cost asymmetry changes (re-measure candidates with `test/run_all.sh --only`);
+a new shared-risk surface the smoke
 core does NOT cover appears (the miss-window grows beyond CLI/REPL/
 filesystem/http/GC e2e — re-scope what the smoke runs); or the batch of
 5 proves wrong in practice.
 
@@ -1,6 +1,5 @@
 {
   "defaultMode": "acceptEdits",
-  "outputStyle": "Japanese",
   "model": "claude-opus-4-8",
   "permissions": {
     "allow": [
 
@@ -1,6 +1,6 @@
 <!-- Per-task short note. Lives in private/notes/<phase>-<task>.md (gitignored).
-     Five minutes to fill in. The future chapter writer reads this; you
-     do not. -->
+     Five minutes to fill in. English, per CLAUDE.md language policy.
+     No em-dashes, no padding. State the fact and stop. -->
 
 ---
 task: §9.X.Y
@@ -11,49 +11,28 @@ files:
   - src/<path>.zig
 ---
 
-## 一行サマリ
+## Summary
 
-<task で何が動くようになったか、1 行>
+<one line: what works now that did not before>
 
-## 詰まったポイント
+## What was non-obvious
 
-1. <非自明な点 1>
-2. <非自明な点 2>
-3. <非自明な点 3>
+1. <finding 1>
+2. <finding 2>
+3. <finding 3>
 
-## 教科書との対比
+## Comparison against the textbooks
 
 - **cw v0** (git tag `v0.5.0`, via `git worktree add ../cw-v0 v0.5.0`):
-  <cw v0 はどうしているか、ファイル名 + 1 行>
+  <what v0 does, filename + one line>
 - **Clojure JVM / Babashka / Zig stdlib**:
-  <該当する場合のみ>
+  <only when relevant>
+- **DIVERGENCE**: <where this project deliberately differs, and why>
 
-## 設計判断（却下した案）
+## Design decisions
 
-- 案 A: ... 却下理由: ...
-- 案 B: ... 却下理由: ...
+- <decision, and the alternative it beat>
 
-## 暫定ログ (this cycle)
+## Worth citing later
 
-<!-- Mandatory section. See .claude/rules/provisional_marker.md. List
-     every PROVISIONAL marker this cycle introduced / discharged /
-     newly surfaced. Empty list (= 0 net delta, none surfaced) is a
-     valid entry; write "なし" explicitly so audit_scaffolding can
-     tell "thought about it" from "forgot to record". -->
-
-- 導入: <file>:<line> ref [refs: D-NNN, feature_deps.yaml#<key>]
-  理由 1 行: ...
-- 消化: <file>:<line> の marker 削除 (D-NNN close, feature_deps
-  entry status: provisional → landed)
-- 想定外: <file>:<line> で新規暫定発見 → D-NNN row 起票
-
-## 章を書くときに必ず触れるべき点
-
-- <演習 1 候補>
-- <演習 2 候補>
-- <Feynman 課題候補>
-- <次章への伏線>
-
-## TODO（直後の task に持ち越す事項）
-
-- <あれば>
+- <the thing a future reader would otherwise have to re-derive>
@@ -1041,7 +1041,7 @@ audit trail, not as a forward-looking instruction.
 | 16    | **Wasm/edge-native** BUILT (gap area II) · ClojureScript→JS = future                          | component build/run/require ship (`cljw.wasm/*`); CLJS→JS genuinely unbuilt                                                                                       |      |
 | 17    | **VM perf: fusion → JIT** PARTIAL (gap area III)                                               | superinstruction/fusion slice landed (D-386 / O-018/019/021/023); narrow ARM64 JIT = milestone M                                                                   |      |
 | 18    | math + module/deps DONE · **C FFI** = future                                                   | `clojure.math` + deps.edn ship; C FFI (`dlopen`/libffi) genuinely unbuilt                                                                                          |      |
-| 19    | **Wasm/edge-native** cont. — WIT auto-binding (gap area II)                                    | component require BUILT; gap = WIT marshalling (D-404) + zwasm integration shape (D-036/D-350)                                                                     |      |
+| 19    | **Wasm/edge-native** cont. — WIT auto-binding (gap area II)                                    | component require BUILT; gap = WIT marshalling (D-404); command/handle embedding shape settled by ADR-0124/D-350                                                   |      |
 | 20    | **broad JIT** = future (distal; gated on gap-area-III fusion outcome)                           | narrow ARM64 JIT (milestone M) is the near-term scope; broad JIT decided after fusion lands                                                                        |      |
 
 ### 9.0 Completion-grade gap-area model (ADR-0142 / F-015 / D-440)
@@ -1081,8 +1081,9 @@ in ADRs / debt rows / overlays still resolve while R4/R5 rewrite them at source)
   (gated, engine correct without them): D-244 #4a' auto-collect, D-245 Option C
   blocking monitor.
 - **(II) Wasm / edge-native** — `cljw.wasm/*` component build/run/require BUILT
-  (`src/runtime/cljw/wasm/`, embeds zwasm v2 per F-001). Gaps: WIT param marshalling
-  (**D-404**), zwasm integration finished-form (**D-036 / D-350 / D-039**).
+  (`src/runtime/cljw/wasm/`, embeds zwasm v2 per F-001). Gap: WIT param marshalling
+  (**D-404**). The core command/handle shape and I/O responsibility split are
+  settled (**ADR-0124 / D-350 / D-039**); D-036 retains only JIT coordination.
 - **(III) VM perf (fusion → JIT)** — arith/compare-branch superinstructions +
   reduce/lazy-seq fusion landed (**D-386 / O-018/019/021/023**). Gaps: remaining
   fusion surface; **narrow ARM64 JIT (F-010 milestone M)** → broad JIT go/no-go
@@ -1525,10 +1526,12 @@ surface}.zig`, embedding zwasm v2 (`@import("zwasm")`, F-001 — SHA-pinned dep,
 interp-only). e2e `phase16_wasm_{run,component,ffi,require_component}.sh` (real,
 build `-Dwasm`). Gated `-Dwasm` opt-in by design (lazy dep), NOT unimplemented.
 
-**Gaps**: WIT param-type marshalling raises `feature_not_supported`
-(`component.zig`) for some types → **D-404** (full WIT↔EDN table); zwasm
-integration finished-form → **D-036 / D-350 / D-039** (responsibility split,
-embedding shape). Entry facts: F-001 (zwasm unavoidable) · F-004 · F-006 · F-008
+**Gap**: WIT param-type marshalling raises `feature_not_supported`
+(`component.zig`) for some types → **D-404** (full WIT↔EDN table). The integration
+finished form is settled: persistent core-library handles, one-shot captured WASI
+commands, and persistent WASI components (**ADR-0124 / D-350**); cw Tier-1 I/O
+and zwasm WASI remain separate (**D-039**). D-036 retains only JIT coordination.
+Entry facts: F-001 (zwasm unavoidable) · F-004 · F-006 · F-008
 (zwasm v2 spec review). Consult zwasm `docs/zig_api_design.md` +
 `docs/consuming_prerelease_zwasm.md` (the SHA-pin procedure).
 
@@ -1569,8 +1572,8 @@ work, low priority.
 
 **Status: component require BUILT** (see §9.18). **Gap**: full WIT auto-binding
 (`(wasm/component "x.wasm")` → bindgen → Clojure namespace) — some WIT param
-marshalling is fixture-blocked → **D-404**; the zwasm integration shape is
-**D-036 / D-350**. This is the same Wasm/edge-native gap area as §9.18.
+marshalling is fixture-blocked → **D-404**. The zwasm embedding shape is settled
+by **ADR-0124 / D-350**. This is the same Wasm/edge-native gap area as §9.18.
 
 ### 9.22 broad JIT = future bucket (formerly "Phase 20"; distal)
 
 
@@ -224,7 +224,7 @@ accepted:
       recorded divergence. The class-NAME simple form (BigInt, not the FQCN) is
       additionally the AD-003 no-JVM-class surface.
     derives_from: "F-005 (numeric tower collapses BigInt/BigInteger into one `.big_int`) + AD-003 (simple class name, no JVM Class)"
-    pin: "test/e2e/phase14_biginteger.sh — biginteger_prints_N + biginteger_class_bigint lock cljw's `5N` print and BigInt class (the divergent values, not clj's 5 / java.math.BigInteger)"
+    pin: "test/clj/suites/biginteger_test.clj — the `biginteger-is-bigint-the-ad-016-divergence` deftest (cases biginteger_prints_N + biginteger_class_bigint) locks cljw's `5N` print and BigInt class (the divergent values, not clj's 5 / java.math.BigInteger)"
   - id: "AD-017"
     summary: "A deftype mutable field's `^long` / primitive type hint is parsed-and-ignored; cljw does not enforce clj's 'must assign primitive to primitive mutable'."
     example: '(deftype C [^:unsynchronized-mutable ^long n] P (go [this] (set! n "hi") n)) (go (->C 0)) => cljw "hi" / clj compile error (primitive mismatch)'
@@ -1083,7 +1083,7 @@ accepted:
       already realised or was already cancelled — the JVM's contract.
     example: '(let [f (future (Thread/sleep 5000))] [(.cancel f false) (.isCancelled f)]) => cljw [true true] / clj [false false] — the JVM refuses to cancel a running task when the flag is false.'
     derives_from: "D-442 / ADR-0153 (cooperative cancellation) + ADR-0059 (no JVM thread interrupt)."
-    pin: "test/e2e/future_methods.sh — cancel_flag_is_ignored_ad065."
+    pin: "test/clj/suites/future_methods_test.clj — cancel_flag_is_ignored_ad065."
 
   - id: "AD-066"
     area: "collections"
Original file line number	Diff line number	Diff line change
`@@ -1,6 +1,5 @@`
`1`	`1`	`{`
`2`	`2`	`"defaultMode": "acceptEdits",`
`3`		`- "outputStyle": "Japanese",`
`4`	`3`	`"model": "claude-opus-4-8",`
`5`	`4`	`"permissions": {`
`6`	`5`	`"allow": [`