chore: package send recording and capability tests

docs/go-mcp-runbook.md

@@ -390,16 +390,57 @@ runs\send-sandbox-gate-package.zip
 Send that zip to the online/internal sandbox operator. The operator must follow `OPERATOR-STEPS.md` inside the package:
 
 1. fill `SANDBOX-SEND-INPUTS.json`;
-2. run `run-before-recorder.bat`;
+2. run `RUN-RECORDING-SUITE.bat` for the guided full flow, or run `01-run-before-recorder.bat`;
 3. manually send exactly one sandbox message in the official client;
 4. fill `success_ack_or_sent_record`;
-5. run `run-after-recorder.bat`;
-6. run `make-return-zip.ps1`;
+5. continue the guided flow, or run `02-run-after-recorder.bat`;
+6. continue the guided flow, or run `03-make-return-zip.bat`;
 7. return the generated zip.
 
+The package also contains `RECORDING-PACKAGE-MANIFEST.json`, `run-before-recorder.bat`, `run-after-recorder.bat`, `compute-content-hash.ps1`, `make-return-zip.ps1`, and the read-only recorder under `recorder\`.
+
 Production `isphere_send_message` remains blocked until the returned package is analyzed.
 
-## 14. Troubleshooting
+## 14. Offline capability-test package
+
+Use this second package when you want to test the current capability surface without logging in and without any real send.
+
+Build and verify it locally:
+
+```powershell
+powershell -NoProfile -ExecutionPolicy Bypass -File scripts\package-send-capability-test.ps1
+powershell -NoProfile -ExecutionPolicy Bypass -File scripts\verify-send-capability-test-package.ps1
+```
+
+Generated package:
+
+```text
+runs\send-capability-test-package.zip
+```
+
+Inside the extracted package, run:
+
+```text
+run-capability-test.bat
+```
+
+Expected final JSON includes:
+
+```json
+{
+  "ok": true,
+  "tool_count": 9,
+  "helper_name": "ISphereWinHelper",
+  "send_preview_tool_present": true,
+  "production_send_enabled": false,
+  "local_login_required": false,
+  "no_real_send": true
+}
+```
+
+This package includes `isphere-capability-smoke.exe` and `runs\win-helper\ISphereWinHelper.exe`. It verifies the nine-tool MCP surface, fixture-backed receive/search/file-list behavior, send preview, and the production-send block. It does not log in, click, type, upload, hook, inject, or send.
+
+## 15. Troubleshooting
 
 - If C# helper build fails, run `scripts\build-win-helper.ps1` directly and check for missing .NET Framework reference assemblies.
 - If `win_helper_version` fails, rerun `powershell -NoProfile -ExecutionPolicy Bypass -File scripts\verify-win-helper.ps1` first.