diff --git a/PROJECT_COMPLETION_TRACKER.md b/PROJECT_COMPLETION_TRACKER.md
index 782e9b7..c09d7b2 100644
--- a/PROJECT_COMPLETION_TRACKER.md
+++ b/PROJECT_COMPLETION_TRACKER.md
@@ -9,7 +9,7 @@ turn-by-turn continuation notes and next-batch execution records.
 ## Current Status
 
 - Active continuation file: `text15.txt`
-- Latest completed batch: real browser simulation page MVP
+- Latest completed batch: real browser simulation test program selector
 - Latest relevant commit: use `git log -1 --oneline` after each committed batch
 - Working tree at tracker creation: clean
 - Required policy: LinuxCNC remains the only CNC semantic source
@@ -40,7 +40,7 @@ The project is complete for the current scope when all of the following are true
 | --- | --- | --- |
 | LinuxCNC semantic boundary | Stable | JS/browser remains glue, staging, OPFS, WASM/browser boundary, docs, and tests only. |
 | Real browser simulation priority | Active first priority | Future batches should prioritize the real UI/browser CNC simulation page, with visible machine/session loading, G-code program state, LinuxCNC-backed interpreter execution, machine readiness/status panels, toolpath/preview rendering from LinuxCNC-produced output or validated runtime events, and browser smoke coverage. First entry point: `wasm-port/runtime/ui/simulation/index.html`; gate: `wasm-port/tests/browser/verify_real_simulation_browser.sh`. See `wasm-port/docs/real-browser-simulation-priority.md`. |
-| Real browser simulation page | MVP active | `runtime/ui/simulation/index.html` loads in Chromium, runs a representative G-code program through LinuxCNC interpreter WASM, renders program lines, final axis readout, canonical event table, raw canonical output, and SVG toolpath preview. |
+| Real browser simulation page | MVP active | `runtime/ui/simulation/index.html` loads in Chromium, exposes a selector for multiple LinuxCNC-backed test programs, runs them through interpreter WASM, renders program lines, final axis readout, canonical event table, raw canonical output, and SVG toolpath preview. Current program set covers square contour, Z pocket contour, incremental loop, G2/G3 arcs, and G81 drilling. |
 | Vendor/source guard | Stable | `verify_vendor_sync.sh` and standalone semantic guard are required every batch. |
 | Interpreter WASM smoke | Stable | `interp_wasm_node_smoke=ok`. |
 | Sim config inventory | Stable with skips | `executed=28`, `passed=28`, `skipped=131`, `unexpected_fail=0`; `docs/sim-configs-coverage-handoff.md` records the release-gate baseline. |
@@ -82,6 +82,9 @@ Current first priority:
 
 - Build a real UI/browser CNC simulation page as quickly as possible.
 - First MVP exists at `wasm-port/runtime/ui/simulation/index.html`.
+- The page now includes selectable test programs for square contour, Z pocket
+  contour, incremental loop, G2/G3 arcs, and G81 drilling, with browser smoke
+  coverage for each program.
 - The page must be visible and operator-oriented, not another release dashboard.
 - It should use OPFS/session persistence, staged G-code, and existing
   LinuxCNC-backed WASM SDK execution.
diff --git a/text15.txt b/text15.txt
index 219135e..d02ed5d 100644
--- a/text15.txt
+++ b/text15.txt
@@ -1630,3 +1630,56 @@ project_release_handoff_docs_node_smoke=ok
 - JS 只调用 LinuxCNC-backed WASM SDK，并把 LinuxCNC-produced canonical output 渲染成
   program state、axis readout、motion table 和 SVG preview；
 - canonical output 中坐标字段的读取只用于 UI 渲染，不作为 CNC 解释或运动规划来源。
+
+七十九、2026-06-16 继续执行记录：real browser simulation 多测试程序
+
+本批继续围绕真实 browser CNC simulation page 推进，把页面从单一内置程序扩展为可选择
+多组 LinuxCNC-backed 测试程序的仿真入口。
+
+本批新增实质能力：
+
+- `runtime/ui/simulation/simulation-app.js` 新增 `SIMULATION_TEST_PROGRAMS`；
+- 当前测试程序覆盖：
+  - square contour；
+  - pocket with Z moves；
+  - incremental loop；
+  - G2/G3 arc path；
+  - G81 drill pattern；
+- `runtime/ui/simulation/index.html` 新增程序选择器和 Run 按钮；
+- 页面 API 新增：
+  - `linuxCncRealSimulationApi.getPrograms()`；
+  - `linuxCncRealSimulationApi.runProgramById(programId)`；
+  - `linuxCncRealSimulationApi.getState()`；
+- browser smoke 现在会逐个运行所有测试程序，验证每个程序都经由 LinuxCNC WASM 执行，
+  DOM program rows、motion rows、canonical output、toolpath polyline 和 motion types 与
+  LinuxCNC-produced output 保持一致；
+- 增强 canonical motion 渲染解析：`ARC_FEED` 使用 LinuxCNC canonical arc endpoint 字段映射
+  到当前 active plane 的坐标轴，只作为 UI toolpath 渲染输入；
+- 新增 UI Node smoke：
+  - `tests/ui/node/verify_real_simulation_programs.mjs`；
+  - `tests/ui/node/verify_real_simulation_programs.sh`；
+- `tests/ui/node/verify_ui_node_smokes.sh` 接入该 smoke；
+- README、real-browser priority docs、PROJECT_COMPLETION_TRACKER 同步记录多测试程序能力。
+
+本批新增/更新可执行验证：
+
+```bash
+wasm-port/tests/ui/node/verify_real_simulation_programs.sh
+wasm-port/tests/ui/node/verify_ui_node_smokes.sh
+SKIP_INTERP_BUILD=1 wasm-port/tests/browser/verify_real_simulation_browser.sh
+```
+
+关键通过输出：
+
+```text
+real_simulation_programs_node_smoke=ok
+ui_node_smokes=ok
+browser_real_simulation_page_smoke=ok
+```
+
+本批仍保持 LinuxCNC 语义边界：
+
+- 新增测试程序均通过 `createLinuxCncInterpSdk()` / `interp.runProgram()` 执行；
+- JS 没有解释 G-code，也没有实现 planner、kinematics、tool、parameter、remap 语义；
+- JS 只保存测试程序文本、调用 LinuxCNC WASM、解析 LinuxCNC-produced canonical output 以渲染
+  UI 状态和刀路终点。
diff --git a/wasm-port/README.md b/wasm-port/README.md
index 9d5a2e8..b1b88a0 100644
--- a/wasm-port/README.md
+++ b/wasm-port/README.md
@@ -17,7 +17,9 @@ LinuxCNC-backed interpreter execution, and browser smoke coverage. This does
 not relax the LinuxCNC semantic boundary; browser code still must not implement
 G-code, tool, parameter, kinematics, remap, or planner semantics.
 The first real simulation entry point is `runtime/ui/simulation/index.html`,
-validated by `tests/browser/verify_real_simulation_browser.sh`.
+validated by `tests/browser/verify_real_simulation_browser.sh`. It now exposes
+multiple LinuxCNC-backed test programs from the page selector: square contour,
+Z pocket contour, incremental loop, G2/G3 arc path, and G81 drill pattern.
 
 The project release gate for the current scope is:
 
@@ -46,6 +48,7 @@ opfs_session_docs_node_smoke=ok
 sim_configs_coverage_docs_node_smoke=ok
 host_runtime_boundary_docs_node_smoke=ok
 real_browser_simulation_priority_docs_node_smoke=ok
+real_simulation_programs_node_smoke=ok
 sdk_surface_node_smoke=ok
 host_wasm_opfs_browser_smokes=ok
 project_release_gate=ok
diff --git a/wasm-port/docs/real-browser-simulation-priority.md b/wasm-port/docs/real-browser-simulation-priority.md
index ce41ccf..b12f856 100644
--- a/wasm-port/docs/real-browser-simulation-priority.md
+++ b/wasm-port/docs/real-browser-simulation-priority.md
@@ -34,6 +34,13 @@ Its browser gate is:
 wasm-port/tests/browser/verify_real_simulation_browser.sh
 ```
 
+The current page includes a real LinuxCNC-backed test-program selector. The
+browser gate runs each listed program through the WASM interpreter and verifies
+that rendered program rows, canonical output, motion rows, toolpath points, and
+declared motion types stay aligned with LinuxCNC-produced output. The first
+program set covers linear contouring, Z moves, incremental mode, G2/G3 arcs,
+and G81 drilling.
+
 ## Batch Priority
 
 Unless a user explicitly changes priority, choose work in this order:
@@ -73,6 +80,7 @@ The priority is enforced by:
 
 ```bash
 wasm-port/tests/docs/node/verify_real_browser_simulation_priority_docs.sh
+wasm-port/tests/ui/node/verify_real_simulation_programs.sh
 wasm-port/tests/host/verify_host_smokes.sh
 wasm-port/tests/host/verify_project_release_gate.sh
 ```
diff --git a/wasm-port/runtime/ui/simulation/index.html b/wasm-port/runtime/ui/simulation/index.html
index 643101e..c03fcee 100644
--- a/wasm-port/runtime/ui/simulation/index.html
+++ b/wasm-port/runtime/ui/simulation/index.html
@@ -35,7 +35,7 @@
       background: var(--surface);
       padding: 14px 20px;
       display: grid;
-      grid-template-columns: minmax(0, 1fr) auto;
+      grid-template-columns: minmax(0, 1fr) minmax(240px, auto) auto;
       gap: 16px;
       align-items: center;
     }
@@ -63,6 +63,38 @@
       color: var(--green);
       font-weight: 700;
     }
+    .program-controls {
+      display: flex;
+      gap: 8px;
+      align-items: center;
+      justify-content: end;
+      min-width: 0;
+    }
+    select, button {
+      border: 1px solid var(--line);
+      border-radius: 6px;
+      background: #fbfcfd;
+      color: var(--text);
+      font: 13px/1.2 "Segoe UI", sans-serif;
+      min-height: 32px;
+    }
+    select {
+      min-width: 220px;
+      max-width: 320px;
+      padding: 5px 8px;
+    }
+    button {
+      padding: 6px 12px;
+      font-weight: 650;
+      cursor: pointer;
+    }
+    button:hover {
+      border-color: var(--blue);
+    }
+    button:disabled {
+      cursor: wait;
+      opacity: 0.6;
+    }
     .workspace {
       display: grid;
       grid-template-columns: minmax(280px, 0.75fr) minmax(420px, 1.35fr) minmax(300px, 0.9fr);
@@ -238,6 +270,8 @@
     }
     @media (max-width: 560px) {
       header { grid-template-columns: 1fr; }
+      .program-controls { justify-content: stretch; }
+      .program-controls select { min-width: 0; width: 100%; }
       .status-strip { justify-content: start; }
       .axis-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
       dl { grid-template-columns: 1fr; }
@@ -248,6 +282,10 @@
   <main>
     <header>
       <h1>LinuxCNC Browser Simulation</h1>
+      <div class="program-controls">
+        <select data-program-selector aria-label="Simulation test program"></select>
+        <button type="button" data-run-program>Run</button>
+      </div>
       <div class="status-strip">
         <span class="badge">Simulation <strong data-simulation-status>loading</strong></span>
         <span class="badge" data-runtime-status>LinuxCNC interpreter WASM</span>
@@ -257,7 +295,7 @@
       <section aria-label="G-code program">
         <div class="section-head">
           <h2>Program</h2>
-          <p class="hint">Executed through the LinuxCNC-backed WASM interpreter.</p>
+          <p class="hint" data-selected-program>Executed through the LinuxCNC-backed WASM interpreter.</p>
         </div>
         <div class="program-lines" data-program-lines></div>
       </section>
@@ -319,14 +357,51 @@
     </div>
   </main>
   <script type="module">
-    import { runRealBrowserSimulation } from "./simulation-app.js";
+    import {
+      DEFAULT_SIMULATION_PROGRAM_ID,
+      getSimulationTestPrograms,
+      runRealBrowserSimulation,
+    } from "./simulation-app.js";
+
+    const runButton = document.querySelector("[data-run-program]");
+    const programSelector = document.querySelector("[data-program-selector]");
+
+    async function runSelectedProgram(programId = programSelector?.value ?? DEFAULT_SIMULATION_PROGRAM_ID) {
+      document.body.dataset.simulationReady = "false";
+      document.querySelector("[data-simulation-status]").textContent = "running";
+      if (runButton) {
+        runButton.disabled = true;
+      }
+      try {
+        const state = await runRealBrowserSimulation({ documentRef: document, programId });
+        window.linuxCncRealSimulationState = state;
+        return state;
+      } finally {
+        if (runButton) {
+          runButton.disabled = false;
+        }
+      }
+    }
 
     try {
-      const state = await runRealBrowserSimulation({ documentRef: document });
+      const state = await runSelectedProgram(DEFAULT_SIMULATION_PROGRAM_ID);
       window.linuxCncRealSimulationState = state;
       window.linuxCncRealSimulationApi = {
         getState: () => window.linuxCncRealSimulationState,
+        getPrograms: getSimulationTestPrograms,
+        runProgramById: async (programId) => {
+          const nextState = await runSelectedProgram(programId);
+          window.linuxCncRealSimulationState = nextState;
+          return nextState;
+        },
       };
+      runButton?.addEventListener("click", () => {
+        window.linuxCncRealSimulationApi.runProgramById(programSelector.value).catch((error) => {
+          document.body.dataset.simulationReady = "false";
+          document.querySelector("[data-simulation-status]").textContent = "failed";
+          document.querySelector("[data-canonical-output]").textContent = error?.stack ?? error?.message ?? String(error);
+        });
+      });
     } catch (error) {
       document.body.dataset.simulationReady = "false";
       document.querySelector("[data-simulation-status]").textContent = "failed";
diff --git a/wasm-port/runtime/ui/simulation/simulation-app.js b/wasm-port/runtime/ui/simulation/simulation-app.js
index 8d725af..4f8817b 100644
--- a/wasm-port/runtime/ui/simulation/simulation-app.js
+++ b/wasm-port/runtime/ui/simulation/simulation-app.js
@@ -1,16 +1,94 @@
 import { createLinuxCncInterpSdk } from "../../sdk/src/index.js";
 
-export const DEFAULT_SIMULATION_PROGRAM = [
-  "G0 X0 Y0 Z0",
-  "G1 X1 Y0 Z0 F100",
-  "G1 X1 Y1 Z0",
-  "G1 X0 Y1 Z0",
-  "G1 X0 Y0 Z0",
-  "M2",
-  "",
-].join("\n");
+export const SIMULATION_TEST_PROGRAMS = [
+  {
+    id: "square-linear",
+    label: "Square contour",
+    category: "Linear",
+    text: [
+      "G90 G17 G0 X0 Y0 Z0",
+      "G1 X1 Y0 Z0 F100",
+      "G1 X1 Y1 Z0",
+      "G1 X0 Y1 Z0",
+      "G1 X0 Y0 Z0",
+      "M2",
+      "",
+    ].join("\n"),
+    expectedMotionTypes: ["STRAIGHT_TRAVERSE", "STRAIGHT_FEED"],
+  },
+  {
+    id: "pocket-z",
+    label: "Pocket with Z moves",
+    category: "Linear",
+    text: [
+      "G90 G17 G0 X0 Y0 Z1",
+      "G1 Z-0.25 F40",
+      "G1 X2 Y0 F120",
+      "G1 X2 Y1",
+      "G1 X0 Y1",
+      "G1 X0 Y0",
+      "G0 Z1",
+      "M2",
+      "",
+    ].join("\n"),
+    expectedMotionTypes: ["STRAIGHT_TRAVERSE", "STRAIGHT_FEED"],
+  },
+  {
+    id: "incremental-loop",
+    label: "Incremental loop",
+    category: "Modal",
+    text: [
+      "G90 G17 G0 X0 Y0 Z0",
+      "G91 G1 X0.5 Y0 F60",
+      "G1 X0 Y0.5",
+      "G1 X-0.5 Y0",
+      "G90 G0 X0 Y0 Z0",
+      "M2",
+      "",
+    ].join("\n"),
+    expectedMotionTypes: ["STRAIGHT_TRAVERSE", "STRAIGHT_FEED"],
+  },
+  {
+    id: "arc-g2-g3",
+    label: "G2/G3 arc path",
+    category: "Arc",
+    text: [
+      "G90 G17 G0 X0 Y0 Z0",
+      "G91.1",
+      "G2 X1 Y1 I1 J0 F80",
+      "G3 X0 Y0 I0 J-1",
+      "M2",
+      "",
+    ].join("\n"),
+    expectedMotionTypes: ["STRAIGHT_TRAVERSE", "ARC_FEED"],
+  },
+  {
+    id: "drill-g81",
+    label: "G81 drill pattern",
+    category: "Cycle",
+    text: [
+      "G90 G17 G0 X0 Y0 Z1",
+      "G81 X0.5 Y0.5 Z-0.25 R0.1 F20",
+      "X1.0 Y0.5",
+      "X1.0 Y1.0",
+      "G80",
+      "G0 X0 Y0 Z1",
+      "M2",
+      "",
+    ].join("\n"),
+    expectedMotionTypes: ["STRAIGHT_TRAVERSE", "STRAIGHT_FEED"],
+  },
+];
+
+export const DEFAULT_SIMULATION_PROGRAM_ID = SIMULATION_TEST_PROGRAMS[0].id;
+export const DEFAULT_SIMULATION_PROGRAM = SIMULATION_TEST_PROGRAMS[0].text;
 
 const AXES = ["x", "y", "z", "a", "b", "c", "u", "v", "w"];
+const PLANE_AXIS_MAP = {
+  170: ["x", "y", "z"],
+  180: ["x", "z", "y"],
+  190: ["y", "z", "x"],
+};
 
 function readCanonicalNumber(line, name) {
   const match = line.match(new RegExp(`(?:^| )${name}=([-+0-9.eE]+)`));
@@ -29,17 +107,39 @@ export function parseLinuxCncCanonicalMotion(resultText, programText = "") {
   const axes = Object.fromEntries(AXES.map((axis) => [axis, 0]));
   const sourceLines = programLineMap(programText);
   const motion = [];
+  let activePlane = 170;
 
   for (const line of String(resultText).split("\n")) {
+    const plane = readCanonicalNumber(line, "plane");
+    if (plane && PLANE_AXIS_MAP[plane]) {
+      activePlane = plane;
+    }
+
     const event = line.match(/^canon_event=(STRAIGHT_TRAVERSE|STRAIGHT_FEED|ARC_FEED)\b/);
     if (!event) {
       continue;
     }
 
-    for (const axis of AXES) {
-      const value = readCanonicalNumber(line, axis);
-      if (value !== null && Number.isFinite(value)) {
-        axes[axis] = value;
+    if (event[1] === "ARC_FEED") {
+      const [firstAxis, secondAxis, thirdAxis] = PLANE_AXIS_MAP[activePlane] ?? PLANE_AXIS_MAP[170];
+      const firstEnd = readCanonicalNumber(line, "first_end");
+      const secondEnd = readCanonicalNumber(line, "second_end");
+      const axisEndPoint = readCanonicalNumber(line, "axis_end_point");
+      if (Number.isFinite(firstEnd)) {
+        axes[firstAxis] = firstEnd;
+      }
+      if (Number.isFinite(secondEnd)) {
+        axes[secondAxis] = secondEnd;
+      }
+      if (Number.isFinite(axisEndPoint)) {
+        axes[thirdAxis] = axisEndPoint;
+      }
+    } else {
+      for (const axis of AXES) {
+        const value = readCanonicalNumber(line, axis);
+        if (value !== null && Number.isFinite(value)) {
+          axes[axis] = value;
+        }
       }
     }
 
@@ -59,6 +159,7 @@ export function parseLinuxCncCanonicalMotion(resultText, programText = "") {
 export function createSimulationSummary({ programText, resultText, motion }) {
   const canonicalLines = String(resultText).split("\n").filter((line) => line.startsWith("canon_event="));
   const finalAxes = motion.at(-1)?.axes ?? Object.fromEntries(AXES.map((axis) => [axis, 0]));
+  const motionTypes = [...new Set(motion.map(({ type }) => type))];
   return {
     apiName: "real-browser-simulation-summary",
     summaryVersion: 1,
@@ -67,12 +168,14 @@ export function createSimulationSummary({ programText, resultText, motion }) {
     programLineCount: programText.split(/\r?\n/).filter(Boolean).length,
     canonicalEventCount: canonicalLines.length,
     motionEventCount: motion.length,
+    motionTypes,
     finalAxes,
     rows: [
       { id: "runtime", label: "Runtime", value: "LinuxCNC interpreter WASM" },
       { id: "program-lines", label: "Program lines", value: `${programText.split(/\r?\n/).filter(Boolean).length}` },
       { id: "canonical-events", label: "Canonical events", value: `${canonicalLines.length}` },
       { id: "motion-events", label: "Motion events", value: `${motion.length}` },
+      { id: "motion-types", label: "Motion types", value: motionTypes.join(", ") || "-" },
       { id: "final-position", label: "Final XYZ", value: formatPosition(finalAxes) },
     ],
   };
@@ -133,6 +236,21 @@ function renderRows(documentRef, rows) {
   }
 }
 
+function renderProgramSelector(documentRef, programId) {
+  const selector = documentRef.querySelector("[data-program-selector]");
+  if (!selector) {
+    return;
+  }
+  selector.textContent = "";
+  for (const program of SIMULATION_TEST_PROGRAMS) {
+    const option = documentRef.createElement("option");
+    option.value = program.id;
+    option.textContent = `${program.category}: ${program.label}`;
+    option.selected = program.id === programId;
+    selector.append(option);
+  }
+}
+
 function renderProgramLines(documentRef, programText, activeLine) {
   const container = documentRef.querySelector("[data-program-lines]");
   if (!container) {
@@ -205,11 +323,14 @@ function renderMotionTable(documentRef, motion) {
 
 export function renderSimulationState(documentRef, state) {
   documentRef.body.dataset.simulationReady = state.summary.ready ? "true" : "false";
+  documentRef.body.dataset.simulationProgramId = state.program?.id ?? "custom";
   setText(documentRef, "[data-simulation-status]", state.summary.ready ? "ready" : "blocked");
   setText(documentRef, "[data-runtime-status]", state.summary.rows[0].value);
+  setText(documentRef, "[data-selected-program]", state.program?.label ?? "Custom program");
   setText(documentRef, "[data-active-line]", `${state.motion.at(-1)?.line ?? "-"}`);
   setText(documentRef, "[data-active-statement]", state.motion.at(-1)?.statement ?? "-");
   setText(documentRef, "[data-canonical-output]", state.resultText);
+  renderProgramSelector(documentRef, state.program?.id ?? "custom");
   renderRows(documentRef, state.summary.rows);
   renderProgramLines(documentRef, state.programText, state.motion.at(-1)?.line ?? null);
   renderAxisReadout(documentRef, state.summary.finalAxes);
@@ -217,19 +338,35 @@ export function renderSimulationState(documentRef, state) {
   renderMotionTable(documentRef, state.motion);
 }
 
+export function getSimulationTestPrograms() {
+  return SIMULATION_TEST_PROGRAMS.map((program) => ({ ...program }));
+}
+
+export function getSimulationTestProgram(programId = DEFAULT_SIMULATION_PROGRAM_ID) {
+  const program = SIMULATION_TEST_PROGRAMS.find(({ id }) => id === programId);
+  if (!program) {
+    throw new Error(`unknown simulation test program: ${programId}`);
+  }
+  return program;
+}
+
 export async function runRealBrowserSimulation({
   documentRef = document,
-  programText = DEFAULT_SIMULATION_PROGRAM,
+  programId = DEFAULT_SIMULATION_PROGRAM_ID,
+  programText = null,
   interpFactory = createLinuxCncInterpSdk,
 } = {}) {
+  const program = programText === null ? getSimulationTestProgram(programId) : null;
+  const resolvedProgramText = program?.text ?? programText ?? DEFAULT_SIMULATION_PROGRAM;
   const interp = await interpFactory();
-  const resultText = interp.runProgram(programText);
-  const motion = parseLinuxCncCanonicalMotion(resultText, programText);
-  const summary = createSimulationSummary({ programText, resultText, motion });
+  const resultText = interp.runProgram(resolvedProgramText);
+  const motion = parseLinuxCncCanonicalMotion(resultText, resolvedProgramText);
+  const summary = createSimulationSummary({ programText: resolvedProgramText, resultText, motion });
   const state = {
     apiName: "real-browser-simulation-state",
     stateVersion: 1,
-    programText,
+    program: program ? { ...program, text: undefined } : null,
+    programText: resolvedProgramText,
     resultText,
     motion,
     summary,
diff --git a/wasm-port/tests/browser/real_simulation_page_smoke.html b/wasm-port/tests/browser/real_simulation_page_smoke.html
index e01f292..788d80c 100644
--- a/wasm-port/tests/browser/real_simulation_page_smoke.html
+++ b/wasm-port/tests/browser/real_simulation_page_smoke.html
@@ -33,44 +33,95 @@
       throw new Error("real simulation page did not expose ready state");
     }
 
-    try {
-      const frame = await loadFrame("../../runtime/ui/simulation/index.html");
-      const doc = frame.contentDocument;
-      const state = await waitForState(frame);
+    function assertRenderedState(doc, state) {
       const polyline = doc.querySelector("[data-toolpath-polyline]");
       const rows = [...doc.querySelectorAll("[data-motion-row]")];
       const programRows = [...doc.querySelectorAll("[data-program-line]")];
       const canonicalOutput = doc.querySelector("[data-canonical-output]")?.textContent ?? "";
 
       if (doc.body.dataset.simulationReady !== "true") {
-        throw new Error("simulation body readiness flag not true");
+        throw new Error(`simulation body readiness flag not true for ${state.program?.id}`);
       }
       if (state.apiName !== "real-browser-simulation-state") {
         throw new Error("simulation state API name drift");
       }
-      if (state.summary.motionEventCount < 5) {
-        throw new Error("simulation motion event count too low");
+      if (state.summary.motionEventCount < 2) {
+        throw new Error(`simulation motion event count too low for ${state.program?.id}`);
       }
+      if (!canonicalOutput.includes("canon_event=")) {
+        throw new Error(`simulation canonical output missing events for ${state.program?.id}`);
+      }
+      if (!polyline?.getAttribute("points")) {
+        throw new Error(`simulation toolpath polyline missing points for ${state.program?.id}`);
+      }
+      if (rows.length !== state.motion.length) {
+        throw new Error(`simulation motion table row count drift for ${state.program?.id}`);
+      }
+      if (programRows.length !== state.summary.programLineCount) {
+        throw new Error(`simulation program row count drift for ${state.program?.id}`);
+      }
+      if (!doc.querySelector("[data-toolpath-svg]")?.getAttribute("viewBox")) {
+        throw new Error(`simulation SVG viewBox missing for ${state.program?.id}`);
+      }
+      if (doc.body.dataset.simulationProgramId !== state.program?.id) {
+        throw new Error(`simulation body program id drift for ${state.program?.id}`);
+      }
+    }
+
+    try {
+      const frame = await loadFrame("../../runtime/ui/simulation/index.html");
+      const doc = frame.contentDocument;
+      const state = await waitForState(frame);
+      const canonicalOutput = doc.querySelector("[data-canonical-output]")?.textContent ?? "";
+      const api = frame.contentWindow?.linuxCncRealSimulationApi;
+
+      assertRenderedState(doc, state);
       if (!canonicalOutput.includes("canon_event=STRAIGHT_FEED line=2 x=1 y=0 z=0")) {
         throw new Error("simulation canonical output missing LinuxCNC feed event");
       }
-      if (!polyline?.getAttribute("points")?.includes("1,0")) {
+      if (!doc.querySelector("[data-toolpath-polyline]")?.getAttribute("points")?.includes("1,0")) {
         throw new Error("simulation toolpath polyline missing expected point");
       }
-      if (rows.length !== state.motion.length) {
-        throw new Error("simulation motion table row count drift");
-      }
-      if (programRows.length < 6) {
-        throw new Error("simulation program rows missing");
-      }
       if (doc.querySelector('[data-axis="x"]')?.textContent !== "0.000") {
         throw new Error("simulation final X axis drift");
       }
       if (doc.querySelector('[data-axis="y"]')?.textContent !== "0.000") {
         throw new Error("simulation final Y axis drift");
       }
-      if (!doc.querySelector("[data-toolpath-svg]")?.getAttribute("viewBox")) {
-        throw new Error("simulation SVG viewBox missing");
+
+      if (!api?.getPrograms || !api?.runProgramById) {
+        throw new Error("simulation API missing program controls");
+      }
+      const programs = api.getPrograms();
+      if (programs.length < 5) {
+        throw new Error("simulation test program inventory too small");
+      }
+
+      for (const program of programs) {
+        const nextState = await api.runProgramById(program.id);
+        assertRenderedState(doc, nextState);
+        if (nextState.program.id !== program.id) {
+          throw new Error(`simulation API returned wrong program id for ${program.id}`);
+        }
+        for (const motionType of program.expectedMotionTypes) {
+          if (!nextState.summary.motionTypes.includes(motionType)) {
+            throw new Error(`simulation program ${program.id} missing motion type ${motionType}`);
+          }
+        }
+      }
+
+      const arcState = await api.runProgramById("arc-g2-g3");
+      const arcPoints = doc.querySelector("[data-toolpath-polyline]")?.getAttribute("points") ?? "";
+      if (!arcState.summary.motionTypes.includes("ARC_FEED")) {
+        throw new Error("arc simulation did not produce ARC_FEED");
+      }
+      if (!arcPoints.includes("1,-1") || !arcPoints.includes("0,0")) {
+        throw new Error(`arc simulation toolpath points did not use canonical arc endpoints: ${arcPoints}`);
+      }
+
+      const drillState = await api.runProgramById("drill-g81");
+      if (drillState.motion.filter(({ type }) => type === "STRAIGHT_FEED").length < 3) {
+        throw new Error("drill simulation did not produce expected feed plunges");
       }
 
       status.textContent = "browser_real_simulation_page_smoke=ok";
diff --git a/wasm-port/tests/ui/node/verify_real_simulation_programs.mjs b/wasm-port/tests/ui/node/verify_real_simulation_programs.mjs
new file mode 100644
index 0000000..5934095
--- /dev/null
+++ b/wasm-port/tests/ui/node/verify_real_simulation_programs.mjs
@@ -0,0 +1,83 @@
+import assert from "node:assert/strict";
+
+import {
+  DEFAULT_SIMULATION_PROGRAM,
+  DEFAULT_SIMULATION_PROGRAM_ID,
+  createSimulationSummary,
+  createToolpathPolylinePoints,
+  getSimulationTestProgram,
+  getSimulationTestPrograms,
+  parseLinuxCncCanonicalMotion,
+} from "../../../runtime/ui/simulation/simulation-app.js";
+
+const programs = getSimulationTestPrograms();
+
+assert.equal(DEFAULT_SIMULATION_PROGRAM_ID, "square-linear");
+assert.equal(getSimulationTestProgram(DEFAULT_SIMULATION_PROGRAM_ID).text, DEFAULT_SIMULATION_PROGRAM);
+assert.ok(programs.length >= 5, "real simulation program inventory should cover multiple examples");
+
+for (const program of programs) {
+  assert.ok(program.id, "program id should be present");
+  assert.ok(program.label, `program ${program.id} should have a label`);
+  assert.ok(program.category, `program ${program.id} should have a category`);
+  assert.ok(program.text.includes("M2"), `program ${program.id} should end through LinuxCNC program end`);
+  assert.ok(
+    program.expectedMotionTypes.length > 0,
+    `program ${program.id} should declare expected LinuxCNC motion types`,
+  );
+  assert.equal(getSimulationTestProgram(program.id).id, program.id);
+}
+
+const ids = new Set(programs.map(({ id }) => id));
+assert.equal(ids.size, programs.length, "program ids should be unique");
+assert.ok(ids.has("arc-g2-g3"), "program inventory should include an arc fixture");
+assert.ok(ids.has("drill-g81"), "program inventory should include a canned-cycle fixture");
+
+assert.throws(
+  () => getSimulationTestProgram("missing-program"),
+  /unknown simulation test program/,
+  "unknown program ids should be rejected",
+);
+
+const arcProgram = getSimulationTestProgram("arc-g2-g3");
+const arcCanonical = [
+  "canon_event=UPDATE_TAG line=1 g0=-1 motion=0 plane=170 origin=530 feed=0 speed=0 flags=1048994",
+  "canon_event=STRAIGHT_TRAVERSE line=1 x=0 y=0 z=0 a=0 b=0 c=0 u=0 v=0 w=0",
+  "canon_event=ARC_FEED line=3 first_end=1 second_end=1 first_axis=1 second_axis=0 rotation=-1 axis_end_point=0 a=0 b=0 c=0 u=0 v=0 w=0",
+  "canon_event=ARC_FEED line=4 first_end=0 second_end=0 first_axis=1 second_axis=0 rotation=1 axis_end_point=0 a=0 b=0 c=0 u=0 v=0 w=0",
+].join("\n");
+const arcMotion = parseLinuxCncCanonicalMotion(arcCanonical, arcProgram.text);
+
+assert.equal(arcMotion.length, 3);
+assert.equal(arcMotion[1].type, "ARC_FEED");
+assert.equal(arcMotion[1].statement, "G2 X1 Y1 I1 J0 F80");
+assert.deepEqual(
+  { x: arcMotion[1].axes.x, y: arcMotion[1].axes.y, z: arcMotion[1].axes.z },
+  { x: 1, y: 1, z: 0 },
+  "arc parser should map LinuxCNC canonical arc endpoints onto active-plane axes",
+);
+assert.equal(createToolpathPolylinePoints(arcMotion), "0,0 1,-1 0,0");
+
+const xzArcCanonical = [
+  "canon_event=UPDATE_TAG line=1 g0=-1 motion=0 plane=180 origin=530 feed=0 speed=0 flags=1048994",
+  "canon_event=STRAIGHT_TRAVERSE line=1 x=0 y=0 z=0 a=0 b=0 c=0 u=0 v=0 w=0",
+  "canon_event=ARC_FEED line=2 first_end=2 second_end=3 first_axis=1 second_axis=0 rotation=-1 axis_end_point=4 a=0 b=0 c=0 u=0 v=0 w=0",
+].join("\n");
+const xzArcMotion = parseLinuxCncCanonicalMotion(xzArcCanonical, "G18 G0 X0 Y0 Z0\nG2 X2 Z3 I1 K0\nM2\n");
+assert.deepEqual(
+  { x: xzArcMotion[1].axes.x, y: xzArcMotion[1].axes.y, z: xzArcMotion[1].axes.z },
+  { x: 2, y: 4, z: 3 },
+  "G18 arc endpoints should use X/Z plus Y axis endpoint",
+);
+
+const summary = createSimulationSummary({
+  programText: arcProgram.text,
+  resultText: arcCanonical,
+  motion: arcMotion,
+});
+assert.equal(summary.ready, true);
+assert.ok(summary.motionTypes.includes("ARC_FEED"));
+assert.equal(summary.finalAxes.x, 0);
+assert.equal(summary.finalAxes.y, 0);
+
+console.log("real_simulation_programs_node_smoke=ok");
diff --git a/wasm-port/tests/ui/node/verify_real_simulation_programs.sh b/wasm-port/tests/ui/node/verify_real_simulation_programs.sh
new file mode 100755
index 0000000..31e2507
--- /dev/null
+++ b/wasm-port/tests/ui/node/verify_real_simulation_programs.sh
@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "$0")/../../.." && pwd)"
+
+node "$ROOT_DIR/tests/ui/node/verify_real_simulation_programs.mjs"
diff --git a/wasm-port/tests/ui/node/verify_ui_node_smokes.sh b/wasm-port/tests/ui/node/verify_ui_node_smokes.sh
index 1f0b763..5f4eba1 100755
--- a/wasm-port/tests/ui/node/verify_ui_node_smokes.sh
+++ b/wasm-port/tests/ui/node/verify_ui_node_smokes.sh
@@ -19,5 +19,6 @@ ROOT_DIR="$(cd "$(dirname "$0")/../../.." && pwd)"
 "$ROOT_DIR/tests/ui/node/verify_ini_panel_ui_shell.sh"
 "$ROOT_DIR/tests/ui/node/verify_ini_panel_shell_control_page_contract.sh"
 "$ROOT_DIR/tests/ui/node/verify_ini_panel_entry_docs.sh"
+"$ROOT_DIR/tests/ui/node/verify_real_simulation_programs.sh"
 
 echo "ui_node_smokes=ok"