# SX Review — 2026-07-03

Findings from three parallel review sessions of the SX language/runtime, plus the master
remediation plan.

| File | What |
|------|------|
| **PLAN.md** | Master remediation plan: 15 workstreams (W1–W15), execution order, and a full per-finding coverage ledger. Start here. |
| **RULINGS.md** | 40 draft normative rulings (R1–R40). Phase-0 gate — ratify before the semantics fixes. |
| core.md | Language core / spec semantics lane (K01–K110). |
| hosts.md | Per-host implementations + FFI lane (J*, C*, JS*, P*, S*, PY). |
| conformance.md | Cross-host agreement + test adequacy lane (F1–F15, S1–S5). |

**Status:** the quick-wins batch (commit dc7aa709) landed 13 fixes + 4 partials; suite at baseline
5762p/274f (fail set byte-identical). Everything else is OPEN/GATE/DEFERRED per PLAN.md's ledger.

**Highest-value open items:** K01 (guard/handler re-raise hang — DoS-able, server+browser),
S1 (live HTTP crash under load), K03 (shift-k double-execution), and W14 (test gate — the enabler
that makes all other fixes verifiable).

**Blocking decisions (maintainer):** D1 host lineup, D2 ratify rulings, D3 gate definition.