diff --git a/text12.txt b/text12.txt
index d9293ce..aeda68b 100644
--- a/text12.txt
+++ b/text12.txt
@@ -2008,3 +2008,81 @@ host_wasm_opfs_browser_smokes=ok
 继续推进 browser/UI workflow。下一批建议把 `shellSessionHandoffSummary` 暴露到 launch browser API
 或 shell integration browser workflow smoke 中，让真实 browser 外部 shell 可以直接读取 summary
 并与 readonly status handoff 结果交叉校验；仍保持只读，不新增控制按钮，不解析 G-code。
+
+二十五、2026-06-15 继续执行记录：INI panel shell session handoff summary browser API
+
+本轮按“第一原则：加快实质性推进”继续推进 browser/UI workflow，把
+`shellSessionHandoffSummary` 暴露到真实 launch browser API，并在 shell integration browser
+workflow smoke 中用 summary 驱动 readonly status handoff。
+
+完成内容：
+
+- `createIniPanelLaunchApiManifest().methods` 新增 `getShellSessionHandoffSummary`；
+- `launch.html` 的 `window.linuxCncIniPanelLaunchApi` 新增真实 browser 入口
+  `getShellSessionHandoffSummary()`；
+- `ini_panel_launch_smoke.html` 在真实 launch iframe 中校验：
+  - `getShellSessionHandoffSummary()` 存在；
+  - launch API manifest methods 包含该方法；
+  - summary `ready === true`；
+  - summary target page 为 `./control-page.html`；
+  - summary readonly fields 包含 `session`；
+  - summary persistence capabilities 数量为 3；
+- `ini_panel_shell_integration_workflow_smoke.html` 改为读取
+  `getShellSessionHandoffSummary()`，并使用 summary 的 handoff methods 调用：
+  - `loadControlPageSessionState()`；
+  - `readControlPageStatus()`；
+- shell integration browser workflow smoke 现在交叉校验：
+  - summary target 与 integration manifest target 一致；
+  - summary handoff methods 可调用；
+  - summary readonly status fields 全部存在于 `readControlPageStatus()` 返回值；
+  - summary persistence capabilities 与 blocking reasons；
+- `verify_ini_panel_launch_api_manifest.mjs`、`verify_ini_panel_entry_docs.mjs` 与
+  `docs/panel-entry.md` 同步记录和校验 browser API；
+- `verify_ini_panel_shell_integration_manifest.mjs` 将 launch method count 更新为 9；
+- 未新增控制按钮；
+- 未解析 G-code；
+- 未解释 canonical events；
+- 未新增 JS CNC 语义；
+- 未改变 OPFS/session persistence、LinuxCNC interpreter、tool、parameter、planner 或
+  LinuxCNC-owned runtime semantics。
+
+验证已通过：
+
+```bash
+git diff --check
+wasm-port/tests/ui/node/verify_ini_panel_launch_api_manifest.sh
+wasm-port/tests/ui/node/verify_ini_panel_entry_docs.sh
+wasm-port/tests/ui/node/verify_ui_node_smokes.sh
+SKIP_INI_BUILD=1 SKIP_INTERP_BUILD=1 wasm-port/tests/browser/verify_ini_panel_browser.sh
+wasm-port/tools/verify_vendor_sync.sh
+wasm-port/tools/verify_no_standalone_cnc_semantics.sh
+SKIP_INTERP_BUILD=1 wasm-port/tests/wasm/node/verify_interp_wasm.sh
+SKIP_INTERP_BUILD=1 wasm-port/tests/wasm/node/verify_sim_configs_inventory_wasm.sh
+wasm-port/tests/host/verify_host_smokes.sh
+```
+
+关键输出：
+
+```text
+ini_panel_launch_api_manifest_node_smoke=ok
+ini_panel_entry_docs_node_smoke=ok
+ui_node_smokes=ok
+browser_ini_opfs_smoke=ok
+browser_ini_control_page_smoke=ok
+browser_ini_launch_smoke=ok
+browser_ini_shell_integration_workflow_smoke=ok
+vendor sync up to date
+standalone CNC semantics guard complete
+interp_wasm_node_smoke=ok
+sim_configs_wasm_node_inventory_executed=28
+sim_configs_wasm_node_inventory_passed=28
+sim_configs_wasm_node_inventory_skipped=131
+sim_configs_wasm_node_inventory_unexpected_fail=0
+host_wasm_opfs_browser_smokes=ok
+```
+
+下一步建议：
+
+继续推进 SDK/API surface。下一批建议为 shell/session handoff summary 增加 focused compatibility
+predicate 或 versioned summary schema（例如 `createIniPanelShellSessionHandoffSummarySchema()`），
+让外部 shell 能独立判断 summary shape 是否可消费；仍保持只读，不新增控制按钮，不解析 G-code。
diff --git a/wasm-port/docs/panel-entry.md b/wasm-port/docs/panel-entry.md
index de2e14c..1aa3f0e 100644
--- a/wasm-port/docs/panel-entry.md
+++ b/wasm-port/docs/panel-entry.md
@@ -132,7 +132,9 @@ control-page API methods, readiness gate, and readonly status handoff fields
 before opening a browser frame.
 Use `createIniPanelShellSessionHandoffSummary()` when the outer shell needs one
 read-only display summary of readiness, target page, persistence capabilities,
-readonly status fields, handoff methods, and blocking reasons.
+readonly status fields, handoff methods, and blocking reasons. Browser shells
+can read the same summary through
+`linuxCncIniPanelLaunchApi.getShellSessionHandoffSummary()`.
 The browser workflow smoke
 `tests/browser/ini_panel_shell_integration_workflow_smoke.html` verifies the
 same external shell handoff: read integration manifest, pass readiness gate,
diff --git a/wasm-port/runtime/ui/ini-panel/launch.html b/wasm-port/runtime/ui/ini-panel/launch.html
index 0d25402..ffb071a 100644
--- a/wasm-port/runtime/ui/ini-panel/launch.html
+++ b/wasm-port/runtime/ui/ini-panel/launch.html
@@ -97,6 +97,7 @@
       getShellIntegrationSchema: () => shellViewModel.shellIntegrationSchema,
       getShellIntegrationManifest: () => shellViewModel.shellIntegrationManifest,
       getShellIntegrationReadiness: () => shellViewModel.shellIntegrationReadiness,
+      getShellSessionHandoffSummary: () => shellViewModel.shellSessionHandoffSummary,
       getLauncherLinks: () => shellViewModel.launcherLinks,
       getControlPageApiMethods: () => shellViewModel.controlPage.browserApiMethods,
     };
diff --git a/wasm-port/runtime/ui/ini-panel/ui-shell.js b/wasm-port/runtime/ui/ini-panel/ui-shell.js
index 2a8e818..37b1d9c 100644
--- a/wasm-port/runtime/ui/ini-panel/ui-shell.js
+++ b/wasm-port/runtime/ui/ini-panel/ui-shell.js
@@ -126,6 +126,7 @@ export function createIniPanelLaunchApiManifest(entries = getVisibleIniPanelEntr
       "getShellIntegrationSchema",
       "getShellIntegrationManifest",
       "getShellIntegrationReadiness",
+      "getShellSessionHandoffSummary",
       "getLauncherLinks",
       "getControlPageApiMethods",
     ],
diff --git a/wasm-port/tests/browser/ini_panel_launch_smoke.html b/wasm-port/tests/browser/ini_panel_launch_smoke.html
index 22d6715..16acecf 100644
--- a/wasm-port/tests/browser/ini_panel_launch_smoke.html
+++ b/wasm-port/tests/browser/ini_panel_launch_smoke.html
@@ -73,6 +73,7 @@
         !launchApi?.getShellIntegrationSchema ||
         !launchApi?.getShellIntegrationManifest ||
         !launchApi?.getShellIntegrationReadiness ||
+        !launchApi?.getShellSessionHandoffSummary ||
         !launchApi?.getLauncherLinks ||
         !launchApi?.getControlPageApiMethods
       ) {
@@ -112,12 +113,13 @@
       );
       assertEqual(
         launchApiManifest.methods.join(","),
-        "isSupportedLaunchApiManifest,getLaunchApiSchema,getLaunchApiManifest,getShellIntegrationSchema,getShellIntegrationManifest,getShellIntegrationReadiness,getLauncherLinks,getControlPageApiMethods",
+        "isSupportedLaunchApiManifest,getLaunchApiSchema,getLaunchApiManifest,getShellIntegrationSchema,getShellIntegrationManifest,getShellIntegrationReadiness,getShellSessionHandoffSummary,getLauncherLinks,getControlPageApiMethods",
         "launch API manifest methods",
       );
       const shellIntegrationSchema = launchApi.getShellIntegrationSchema();
       const shellIntegrationManifest = launchApi.getShellIntegrationManifest();
       const shellIntegrationReadiness = launchApi.getShellIntegrationReadiness();
+      const shellSessionHandoffSummary = launchApi.getShellSessionHandoffSummary();
       assertEqual(
         shellIntegrationSchema.manifestVersion,
         1,
@@ -158,6 +160,26 @@
         "",
         "shell integration readiness missing checks",
       );
+      assertEqual(
+        shellSessionHandoffSummary.ready,
+        true,
+        "shell session handoff summary readiness",
+      );
+      assertEqual(
+        shellSessionHandoffSummary.targetPage.href,
+        "./control-page.html",
+        "shell session handoff summary target",
+      );
+      assertEqual(
+        shellSessionHandoffSummary.readonlyStatusFields.includes("session"),
+        true,
+        "shell session handoff summary readonly fields",
+      );
+      assertEqual(
+        shellSessionHandoffSummary.persistenceCapabilities.length,
+        3,
+        "shell session handoff summary persistence capabilities",
+      );
       assertEqual(
         JSON.stringify(shellIntegrationManifest),
         JSON.stringify(createIniPanelShellIntegrationManifest()),
diff --git a/wasm-port/tests/browser/ini_panel_shell_integration_workflow_smoke.html b/wasm-port/tests/browser/ini_panel_shell_integration_workflow_smoke.html
index 9648b18..948309f 100644
--- a/wasm-port/tests/browser/ini_panel_shell_integration_workflow_smoke.html
+++ b/wasm-port/tests/browser/ini_panel_shell_integration_workflow_smoke.html
@@ -63,16 +63,24 @@ TOOL_TABLE = browser-shell-tool.tbl
       const launchApi = launchDoc.defaultView.linuxCncIniPanelLaunchApi;
       if (
         !launchApi?.getShellIntegrationManifest ||
-        !launchApi?.getShellIntegrationReadiness
+        !launchApi?.getShellIntegrationReadiness ||
+        !launchApi?.getShellSessionHandoffSummary
       ) {
         throw new Error("launch API namespace did not expose shell integration helpers");
       }
 
       const integrationManifest = launchApi.getShellIntegrationManifest();
       const readiness = launchApi.getShellIntegrationReadiness();
+      const handoffSummary = launchApi.getShellSessionHandoffSummary();
       assertEqual(readiness.phase, "ready", "shell integration readiness phase");
       assertEqual(readiness.ready, true, "shell integration readiness");
       assertEqual(readiness.missing.join(","), "", "shell integration readiness missing checks");
+      assertEqual(handoffSummary.ready, true, "shell handoff summary readiness");
+      assertEqual(handoffSummary.blockingReasons.join(","), "", "shell handoff summary blocking reasons");
+      assertEqual(handoffSummary.handoffMethods.loadSessionState, "loadControlPageSessionState", "shell handoff load method");
+      assertEqual(handoffSummary.handoffMethods.readStatus, "readControlPageStatus", "shell handoff status method");
+      assertEqual(handoffSummary.readonlyStatusFields.includes("session"), true, "shell handoff readonly session field");
+      assertEqual(handoffSummary.persistenceCapabilities.length, 3, "shell handoff persistence capabilities");
       assertEqual(readiness.apiNames.launch, "ini-panel-launch", "shell integration launch API name");
       assertEqual(
         readiness.apiNames.controlPage,
@@ -94,6 +102,7 @@ TOOL_TABLE = browser-shell-tool.tbl
         (page) => page.entryId === "control-view",
       );
       assertEqual(controlTarget.href, "./control-page.html", "shell integration control target");
+      assertEqual(handoffSummary.targetPage.href, controlTarget.href, "shell handoff summary target");
 
       const controlDoc = await loadFrame(`../../runtime/ui/ini-panel/${controlTarget.href.slice(2)}`);
       const controlPageApi = controlDoc.defaultView.linuxCncIniPanelControlPageApi;
@@ -120,12 +129,12 @@ TOOL_TABLE = browser-shell-tool.tbl
         "embedded INI panel API",
       );
       assertEqual(
-        controlPageApi.loadControlPageSessionState().phase,
+        controlPageApi[handoffSummary.handoffMethods.loadSessionState]().phase,
         "ready",
         "shell integration control-page session readiness",
       );
       assertEqual(
-        controlPageApi.readControlPageStatus().status.lastAction,
+        controlPageApi[handoffSummary.handoffMethods.readStatus]().status.lastAction,
         null,
         "shell integration initial readonly status",
       );
@@ -147,7 +156,7 @@ TOOL_TABLE = browser-shell-tool.tbl
         "shell integration load session",
       );
 
-      const readonlyStatus = controlPageApi.readControlPageStatus();
+      const readonlyStatus = controlPageApi[handoffSummary.handoffMethods.readStatus]();
       assertEqual(
         readonlyStatus.workflowStatus.lastAction,
         "load-session",
@@ -163,6 +172,11 @@ TOOL_TABLE = browser-shell-tool.tbl
         "browser-shell-tool.tbl",
         "shell integration readonly state bundle tool table",
       );
+      assertEqual(
+        handoffSummary.readonlyStatusFields.every((fieldName) => Object.hasOwn(readonlyStatus, fieldName)),
+        true,
+        "shell handoff readonly status fields",
+      );
       assertEqual(
         controlDoc.getElementById("control-page-status").textContent,
         "load-session | not-run | -",
diff --git a/wasm-port/tests/ui/node/verify_ini_panel_entry_docs.mjs b/wasm-port/tests/ui/node/verify_ini_panel_entry_docs.mjs
index 5e621e4..f5f100d 100644
--- a/wasm-port/tests/ui/node/verify_ini_panel_entry_docs.mjs
+++ b/wasm-port/tests/ui/node/verify_ini_panel_entry_docs.mjs
@@ -221,6 +221,7 @@ assert.match(launchText, /\bgetLaunchApiManifest\b/);
 assert.match(launchText, /\bgetShellIntegrationSchema\b/);
 assert.match(launchText, /\bgetShellIntegrationManifest\b/);
 assert.match(launchText, /\bgetShellIntegrationReadiness\b/);
+assert.match(launchText, /\bgetShellSessionHandoffSummary\b/);
 assert.match(launchText, /\bgetControlPageApiMethods\b/);
 assert.match(controlPageText, /\bgetControlPageContract\b/);
 assert.match(controlPageText, /\breadControlPageStatus\b/);
@@ -249,10 +250,13 @@ assert.match(docText, /\blinuxCncIniPanelLaunchApi\.getLaunchApiManifest\b/);
 assert.match(docText, /\blinuxCncIniPanelLaunchApi\.getShellIntegrationSchema\b/);
 assert.match(docText, /\blinuxCncIniPanelLaunchApi\.getShellIntegrationManifest\b/);
 assert.match(docText, /\blinuxCncIniPanelLaunchApi\.getShellIntegrationReadiness\b/);
+assert.match(docText, /\blinuxCncIniPanelLaunchApi\.getShellSessionHandoffSummary\b/);
 assert.match(docText, /\blinuxCncIniPanelLaunchApi\.getControlPageApiMethods\b/);
 assert.match(docText, /\bini_panel_shell_integration_workflow_smoke\.html\b/);
 assert.match(browserIniPanelText, /\bini_panel_shell_integration_workflow_smoke\.html\b/);
 assert.match(shellIntegrationWorkflowSmokeText, /\bgetShellIntegrationReadiness\b/);
+assert.match(shellIntegrationWorkflowSmokeText, /\bgetShellSessionHandoffSummary\b/);
+assert.match(shellIntegrationWorkflowSmokeText, /\bhandoffSummary\.handoffMethods\.readStatus\b/);
 assert.match(shellIntegrationWorkflowSmokeText, /\breadControlPageStatus\b/);
 assert.match(shellIntegrationWorkflowSmokeText, /\bbrowser_ini_shell_integration_workflow_smoke=ok\b/);
 assert.match(docText, /\bOPFS\/session persistence capabilities\b/);
diff --git a/wasm-port/tests/ui/node/verify_ini_panel_launch_api_manifest.mjs b/wasm-port/tests/ui/node/verify_ini_panel_launch_api_manifest.mjs
index d854475..7612d81 100644
--- a/wasm-port/tests/ui/node/verify_ini_panel_launch_api_manifest.mjs
+++ b/wasm-port/tests/ui/node/verify_ini_panel_launch_api_manifest.mjs
@@ -46,6 +46,7 @@ assert.deepEqual(manifest, {
     "getShellIntegrationSchema",
     "getShellIntegrationManifest",
     "getShellIntegrationReadiness",
+    "getShellSessionHandoffSummary",
     "getLauncherLinks",
     "getControlPageApiMethods",
   ],
@@ -146,6 +147,7 @@ assert.match(launchText, /\bgetLaunchApiManifest\b/);
 assert.match(launchText, /\bgetShellIntegrationSchema\b/);
 assert.match(launchText, /\bgetShellIntegrationManifest\b/);
 assert.match(launchText, /\bgetShellIntegrationReadiness\b/);
+assert.match(launchText, /\bgetShellSessionHandoffSummary\b/);
 assert.match(launchText, /\blinuxCncIniPanelLaunchApi\b/);
 
 console.log("ini_panel_launch_api_manifest_node_smoke=ok");
diff --git a/wasm-port/tests/ui/node/verify_ini_panel_shell_integration_manifest.mjs b/wasm-port/tests/ui/node/verify_ini_panel_shell_integration_manifest.mjs
index 805dc66..ed87685 100644
--- a/wasm-port/tests/ui/node/verify_ini_panel_shell_integration_manifest.mjs
+++ b/wasm-port/tests/ui/node/verify_ini_panel_shell_integration_manifest.mjs
@@ -85,7 +85,7 @@ assert.deepEqual(readiness, {
   counts: {
     pages: 2,
     launcherLinks: 2,
-    launchMethods: 8,
+    launchMethods: 9,
     controlPageMethods: 11,
     persistenceCapabilities: 3,
   },
@@ -145,7 +145,7 @@ assert.deepEqual(handoffSummary, {
     counts: {
       pages: 2,
       launcherLinks: 2,
-      launchMethods: 8,
+      launchMethods: 9,
       controlPageMethods: 11,
       persistenceCapabilities: 3,
     },
@@ -210,7 +210,7 @@ assert.deepEqual(createIniPanelShellIntegrationReadiness(blockedManifest), {
   counts: {
     pages: 2,
     launcherLinks: 2,
-    launchMethods: 8,
+    launchMethods: 9,
     controlPageMethods: 11,
     persistenceCapabilities: 3,
   },