selfhost/runtime: Stage 0-1 runner + MIR JSON loader (summary) with trace; compiler: scopebox/loopform prepass wiring (flags, child args); libs: add P1 standard boxes (console/string/array/map) as thin wrappers; runner: pass --box-pref via env; ops_calls dispatcher skeleton; docs: selfhost executor roadmap + scopebox/loopform notes; smokes: selfhost runner + identity prepasses; CURRENT_TASK: update plan and box lib schedule

tools/test/dev/inspect_seam_using_mixed.sh

@@ -30,6 +30,16 @@ unset NYASH_PYVM_DUMP_CODE
 unset NYASH_RESOLVE_SEAM_DEBUG
 unset NYASH_RESOLVE_FIX_BRACES
 unset NYASH_RESOLVE_DEDUP_BOX
-"$BIN" --backend vm "$APP_INS"
+
+# Run inspector and capture output
+OUT=$("$BIN" --backend vm "$APP_INS")
+echo "$OUT"
+
+# CI guard: brace delta must be zero after FIX_BRACES normalization in the dump
+echo "[dev] assert: prelude_brace_delta==0" >&2
+echo "$OUT" | grep -q "^prelude_brace_delta=0$" || {
+  echo "[error] prelude_brace_delta is not zero" >&2
+  exit 1
+}
 
 popd >/dev/null

tools/test/smoke/llvm/ir_phi_hygiene_loopform.sh

@@ -50,6 +50,7 @@ check_case "apps/tests/macro/loopform/two_vars.nyash"
 check_case "apps/tests/macro/loopform/with_continue.nyash"
 check_case "apps/tests/macro/loopform/with_break.nyash"
 check_case "apps/tests/llvm_phi_mix.nyash"
+check_case "apps/tests/loop_if_phi_continue.nyash"
 
 if [ "$fails" -ne 0 ]; then
   exit 2

tools/test/smoke/loop_phi_values.sh

@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+set -euo pipefail
+ROOT_DIR=$(cd "$(dirname "$0")/../../.." && pwd)
+
+echo "[smoke] loop phi values (then-continue + per-var PHI)" >&2
+
+pushd "$ROOT_DIR" >/dev/null
+
+cargo build --release -q
+
+BIN=./target/release/nyash
+APP=apps/tests/loop_if_phi_continue.nyash
+
+# Run VM (PyVM) and suppress runner result line to compare pure prints
+export NYASH_VM_USE_PY=1
+export NYASH_JSON_ONLY=1
+out=$("$BIN" --backend vm "$APP")
+
+expected=$'7\n1'
+if [[ "$out" != "$expected" ]]; then
+  echo "[smoke] FAIL: unexpected output" >&2
+  echo "--- got ---" >&2
+  printf '%s\n' "$out" >&2
+  echo "--- exp ---" >&2
+  printf '%s\n' "$expected" >&2
+  exit 1
+fi
+
+echo "[smoke] OK: loop phi values correct" >&2
+popd >/dev/null
+

tools/test/smoke/selfhost/collect_prints_using_mixed.sh

@@ -36,4 +36,15 @@ if [[ "$out" != "$expected" ]]; then
 fi
 
 echo "[smoke] OK: collect_prints using + mixed order" >&2
+
+# Seam hygiene check: ensure prelude_brace_delta==0 on the dump
+NYASH_PYVM_DUMP_CODE=1 NYASH_RESOLVE_SEAM_DEBUG=1 NYASH_RESOLVE_FIX_BRACES=1 NYASH_RESOLVE_DEDUP_BOX=1 \
+  "$BIN" --backend vm "$APP" >/dev/null 2>&1 || true
+INS_OUT=$("$BIN" --backend vm apps/tests/dev_seam_inspect_dump.nyash)
+echo "$INS_OUT" | grep -q "^prelude_brace_delta=0$" || {
+  echo "[smoke] FAIL: seam prelude_brace_delta is not zero" >&2
+  echo "$INS_OUT" >&2
+  exit 1
+}
+echo "[smoke] OK: seam prelude brace delta == 0" >&2
 popd >/dev/null

tools/test/smoke/selfhost/loopform_identity_smoke.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT_DIR=$(cd "$(dirname "$0")/../../.." && pwd)
+cd "$ROOT_DIR"
+
+echo "[smoke] build nyash (release)"
+cargo build --release -q
+
+BIN=./target/release/nyash
+CHILD=apps/selfhost/compiler/compiler.nyash
+
+echo "[smoke] run child (baseline)"
+BASE=$("$BIN" --backend vm "$CHILD" -- --min-json)
+
+echo "[smoke] run child (loopform on)"
+WITH=$("$BIN" --backend vm "$CHILD" -- --min-json --loopform)
+
+if [[ "$BASE" != "$WITH" ]]; then
+  echo "❌ loopform identity prepass altered JSON" >&2
+  diff -u <(echo "$BASE") <(echo "$WITH") || true
+  exit 1
+fi
+
+echo "$BASE" | grep -q '"kind":"Program"' || { echo "❌ baseline JSON missing Program kind" >&2; exit 1; }
+
+echo "✅ loopform identity smoke passed"
+

tools/test/smoke/selfhost/scopebox_identity_smoke.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT_DIR=$(cd "$(dirname "$0")/../../.." && pwd)
+cd "$ROOT_DIR"
+
+echo "[smoke] build nyash (release)"
+cargo build --release -q
+
+BIN=./target/release/nyash
+CHILD=apps/selfhost/compiler/compiler.nyash
+
+if [[ ! -x "$BIN" ]]; then
+  echo "nyash binary not found: $BIN" >&2
+  exit 1
+fi
+
+echo "[smoke] run child (baseline)"
+BASE=$("$BIN" --backend vm "$CHILD" -- --min-json)
+
+echo "[smoke] run child (scopebox on)"
+WITH=$("$BIN" --backend vm "$CHILD" -- --min-json --scopebox)
+
+if [[ "$BASE" != "$WITH" ]]; then
+  echo "❌ scopebox identity prepass altered JSON" >&2
+  diff -u <(echo "$BASE") <(echo "$WITH") || true
+  exit 1
+fi
+
+echo "$BASE" | grep -q '"kind":"Program"' || { echo "❌ baseline JSON missing Program kind" >&2; exit 1; }
+
+echo "✅ scopebox identity smoke passed"
+

tools/test/smoke/selfhost/selfhost_runner_smoke.sh

@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Smoke: Stage 0/1 selfhost runner wiring (harness JSON path)
+
+ROOT_DIR=$(cd "$(dirname "$0")/../../.." && pwd)
+cd "$ROOT_DIR"
+
+echo "[smoke] building nyash (release)"
+cargo build --release -q
+
+BIN=./target/release/nyash
+APP=apps/tests/dev_prints_count_probe.nyash
+
+if [[ ! -x "$BIN" ]]; then
+  echo "nyash binary not found: $BIN" >&2
+  exit 1
+fi
+
+echo "[smoke] running selfhost runner (harness)"
+set +e
+OUT=$(NYASH_VM_USE_PY=1 NYASH_SELFHOST_EXEC=1 "$BIN" --backend vm "$APP" -- --trace 2>&1)
+CODE=$?
+set -e
+
+echo "$OUT" | sed -e 's/^/[child] /'
+
+if [[ $CODE -ne 0 ]]; then
+  echo "❌ selfhost runner exited with code $CODE" >&2
+  exit $CODE
+fi
+
+if ! echo "$OUT" | grep -q "\[selfhost\] harness summary: functions="; then
+  echo "❌ expected harness summary line not found" >&2
+  exit 1
+fi
+
+echo "✅ selfhost runner smoke passed"
+