chore(release): v1.35.0 - the third dimension, added twice

A MINOR shipping two independent halves: the vertical datum layer
(`height` at three new sites, `sill`/`head` on openings, three refusal
codes) which draws nothing, and the opt-in axonometric view
(`--view iso|axon`) which measures nothing.

- root 1.34.0 -> 1.35.0
- MCP shim 0.2.14 -> 0.2.15, dep range ^1.35.0 (twelfth consecutive
  version-bump-only release; four of five baked resources moved,
  the GBNF and plan schema among them)
- VS Code extension 0.23.0 -> 0.24.0, dep range ^1.35.0
- CHANGELOG [Unreleased] -> [1.35.0] with the shim resource measurement
- AGENTS.md status rows written PRE-probe and marked as such
- docs E2E page-count pin 8 -> 9 for the new docs/axonometric.md route

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019qQs1eZDKceqT7NMkeHYvW

Author: ChanMeng666

AGENTS.md

@@ -7,6 +7,31 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.35.0] - 2026-09-04
+
+**The third dimension, added twice — once as a number nothing draws, once as a picture nothing
+measures.** A floor plan is a horizontal cut, and until now that cut was all ArchLang had: a wall
+carried a thickness and no height, a window a width and no sill. This release adds the missing
+datum and then, separately, the first thing that consumes it. They are deliberately independent —
+the datum ships with **nothing drawing differently**, pinned over all thirty shipped examples and
+every storey of each, and the view ships **taking no part in any measurement**, with `describe()`
+and `lint()` structurally unable to read it.
+
+Two new keywords (`sill`, `head`), `height` reused at three new sites rather than a fourth spelling
+invented, three new `E_*` refusal codes, and one new opt-in flag (`--view iso|axon`). **No
+removals.** A plan that authors no height and passes no `--view` is byte-identical in SVG,
+`describe()` and `lint()` — held as a law on both digests, not asserted.
+
+**The two findings worth carrying past this release.** No test in this repository had ever
+**executed** an error-catalog example: the drift gate proves `docs/error-codes.md` reproduces the
+catalog, never that the catalog is true, and `E_HEIGHT_RANGE`'s own example documented a refusal
+the compiler does not make. `test/error-catalog-examples.test.ts` now runs every one, holding 95 of
+139 to raising their own code and pruning the 44 excuses in **both** directions — which already
+paid for itself, four entries excused on sight turning out to raise their code anyway. And the
+SVG backend's per-CAD-layer `<g>` grouping **re-orders nodes within a pass**, which a painter's
+algorithm cannot survive: the first axonometric render drew every floor plate after every wall and
+read as an open box seen from inside.
+
 ### Added — the opt-in axonometric view
 
 `compile(source, { view: "iso" | "axon" })`, and `arch compile|preview --view iso|axon`, draw the
@@ -209,6 +234,31 @@ while `storey_height` and `walls[].height` are vertical — the same word for tw
 is kept on the wall because it is the `.arch` clause the payload round-trips to and the word a model
 has to produce; both schema descriptions say which is which.
 
+### Shipped alongside
+
+- **MCP shim `@chanmeng666/archlang-mcp` 0.2.15** — a **twelfth consecutive version-bump-only
+  release** (`git diff v1.34.0..main -- packages/mcp` is empty), and the sharpest instance of the
+  pack-time law since 0.2.11. Measured by SHA-256 against the v1.34.0 tag, **four of the five baked
+  resources moved** and one did not:
+
+  | Baked resource | vs v1.34.0 |
+  |---|---|
+  | `spec.llm.md` | moved |
+  | `llms-full.txt` | moved |
+  | `grammars/archlang.gbnf` | moved |
+  | `schemas/plan.schema.json` | moved |
+  | `schemas/intent.schema.json` | unchanged |
+
+  The grammar moving is what makes this the sharp case: `sill` and `head` are real tokens, so a
+  constrained decoder pointed at published 0.2.14's GBNF **cannot derive either clause at all** —
+  not mis-taught, unable to emit the syntax. `plan.schema.json` moved for the four new keys
+  (`storey_height`, `walls[].height`, `openings[].sill`, `openings[].head`), so a host reading the
+  published 0.2.14 schema rejects payloads this core emits. `intent.schema.json` is unchanged, and
+  correctly: a height is not an intent assertion. Dep range re-pinned to `^1.35.0`.
+- **VS Code extension `ChanMeng.archlang` 0.24.0** — packaged against core 1.35.0, carrying the two
+  new keywords, the three new `E_*` codes and the `--view` surface in the bundled server. The
+  Marketplace upload is a human web step and is **not** performed by this repository.
+
 ## [1.34.0] - 2026-09-04
 
 **What the gates could not see.** Every item here is a check that was running, green, and

CHANGELOG.md

@@ -66,7 +66,8 @@ than memory.
   union to answer a `describe()` question. Inventory: `docs/research/2026-08-06-competitor-borrowing-roadmap.md` §9.1.
 - **Every new language form ships with a byte-identity law, pinned by test:** a plan that does not
   use it renders, describes and lints exactly as before. `site`, the door kinds, `zone`, `paper`,
-  `polygon`, `arc`, `roof` and `void` all have one. Prove it with a SHA-256 sweep over the shipped
+  `polygon`, `arc`, `roof`, `void`, the v1.35 `height`/`sill`/`head` datum and the v1.35 `--view`
+  all have one. Prove it with a SHA-256 sweep over the shipped
   examples, not by eyeballing — and if a golden moves, that is a finding to explain before it is a
   diff to bless. Take the baseline with the **same digest body the test will run**, not a lookalike
   in a throwaway script: `test/roof-void-byte-identity.test.ts`'s first attempt used a scratch script
@@ -140,7 +141,14 @@ whole design (`arch lint --code E_ROOF_CURVED` / `arch explain E_ROOF_CURVED` 
 refused rather than approximated, and `roof polygon` is the answer); and the **underlay walkability
 check**, which is the one furniture claim a drawing cannot show — put a `rug` and then a `sofa` on
 the same rectangle across a plan's only route and confirm `arch describe --json`'s circulation walks
-THROUGH the first and `arch lint` raises `W_ROOM_NO_CLEAR_PATH` on the second. Keep the flagship
+THROUGH the first and `arch lint` raises `W_ROOM_NO_CLEAR_PATH` on the second. For the v1.35
+surfaces, drive the two things a reading gets wrong: **`arch describe --json --select heights`** on a
+plan that authors a `height` and on one that does not — the whole block is gated on one whole-plan
+flag, so a plan authoring nothing must emit nothing, and elevation ACCUMULATES the storeys below
+rather than being `level × storey_height` (write two `level … height` blocks of different heights and
+read the third floor); and **`arch compile --view iso`**, which is a picture and not a drawing —
+confirm `describe()`/`lint()` are unmoved by it, and that all four refusals exit 3 rather than falling
+back to the plan (`--view` with `-f txt`, with `--ascii`, with `--level`, with `--overlay`). Keep the flagship
 `examples/studio.arch` **lint-clean and import-free**, and update snapshots/goldens
 (`vitest -u`, `UPDATE_GOLDENS=1 vitest run test/visual.test.ts`, `ASCII_UPDATE=1 vitest run
 test/ascii.test.ts`) only after reviewing the diff — never to green a red suite.

CLAUDE.md

@@ -88,7 +88,7 @@ test.describe("machine-readable root artifacts", { tag: "@prod" }, () => {
 
 test.describe("the raw /<page>.md copies serve the canonical markdown", { tag: "@prod" }, () => {
   test("there are as many routes as sync-docs publishes pages", () => {
-    expect(PAGE_ROUTES.length).toBe(8);
+    expect(PAGE_ROUTES.length).toBe(9);
   });
 
   for (const { route, source } of PAGE_ROUTES) {

docs-site/e2e/routes.spec.ts

@@ -1,7 +1,7 @@
 {
   "name": "archlang",
   "private": true,
-  "version": "0.23.0",
+  "version": "0.24.0",
   "displayName": "ArchLang",
   "description": "Syntax highlighting plus full language support — live diagnostics, hover, completion, go-to-definition, rename, and signature help — for ArchLang (.arch) floor-plan source.",
   "license": "MIT",
@@ -57,7 +57,7 @@
     "vscode:prepublish": "npm run build"
   },
   "devDependencies": {
-    "@chanmeng666/archlang": "^1.34.0",
+    "@chanmeng666/archlang": "^1.35.0",
     "@types/node": "^22.20.0",
     "@types/vscode": "^1.75.0",
     "@vscode/vsce": "^3.2.1",

editors/vscode/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@chanmeng666/archlang",
-  "version": "1.34.0",
+  "version": "1.35.0",
   "description": "A small declarative language that compiles to professional SVG floor plans — like Typst/LaTeX, but for architecture.",
   "keywords": [
     "architecture",

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@chanmeng666/archlang-mcp",
-  "version": "0.2.14",
+  "version": "0.2.15",
   "mcpName": "io.github.ChanMeng666/archlang-mcp",
   "description": "Model Context Protocol (MCP) server for ArchLang — compile, describe, lint, validate, score, repair, fix and suggest floor plans over stdio, plus the intent channel (gate + continuous score against a brief). Covers the whole current language: multi-storey `level` plans with stairs, `place`d components, zones, scaled paper with dimension chains and room schedules, and non-rectilinear `room polygon` / `room circle` / `arc` walls. A thin shim over @chanmeng666/archlang; the CLI stays the primary, token-cheaper interface.",
   "keywords": [
@@ -42,7 +42,7 @@
     "prepack": "npm run build"
   },
   "dependencies": {
-    "@chanmeng666/archlang": "^1.34.0",
+    "@chanmeng666/archlang": "^1.35.0",
     "@modelcontextprotocol/sdk": "^1.29.0",
     "zod": "^3.25.76"
   },

package.json

@@ -2,7 +2,7 @@
   "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
   "name": "io.github.ChanMeng666/archlang-mcp",
   "description": "Compile, describe, lint, validate, score and repair multi-storey and curved ArchLang floor plans.",
-  "version": "0.2.14",
+  "version": "0.2.15",
   "repository": {
     "url": "https://github.com/ChanMeng666/archlang",
     "source": "github",
@@ -14,7 +14,7 @@
       "registryType": "npm",
       "registryBaseUrl": "https://registry.npmjs.org",
       "identifier": "@chanmeng666/archlang-mcp",
-      "version": "0.2.14",
+      "version": "0.2.15",
       "runtimeHint": "npx",
       "transport": {
         "type": "stdio"