flow: run a form's own script before an API save instead of refusing it

CAPABILITIES.md

@@ -200,6 +200,8 @@ improvising or retrying when something is off.
 | Run a step as a direct API call (`ApiActuator`, `ApiBinding`) | Released, hand-authored bindings | Synthetic benchmarks | `runtime/actuators/api.py` |
 | Capture a recording's network traffic and compile a clean save into an API step, with the same record check | On main ([#1269](https://github.com/OpenAdaptAI/OpenAdapt/pull/1269)) | Synthetic patients on a local OpenEMR test copy | network capture, `ApiBinding` |
 | Fall back from the API step to page structure when the API is unavailable, before anything is sent | On main ([#1269](https://github.com/OpenAdaptAI/OpenAdapt/pull/1269)) | Synthetic | [#1269](https://github.com/OpenAdaptAI/OpenAdapt/pull/1269) |
+| Run a form's own script before an API save instead of refusing the form: field handlers, `onsubmit`, submit listeners and custom validate.js rules (OpenEMR's `pastDate`) run on the run's values in a scratch copy of the session with every write blocked, and the save is sent only when the page lets the submit through and would send the same body | On main | Synthetic (headless Chromium against a local test page) | [API_TIER.md](packages/flow/docs/API_TIER.md#what-happens-at-run-time), `runtime/actuators/form_eval.py` |
+| Declare the other writes in an API step's span as an ordered sequence: the page's own background requests (another document's script, loaded before the form, to an endpoint the form doesn't name) are listed and not sent; a write a step caused is sent in its recorded place before the save, read back by that step's record check, and a failure stops the run with nothing after it sent and nothing retried | On main | Synthetic | [API_TIER.md](packages/flow/docs/API_TIER.md#other-writes-in-the-span) |
 | Approve an API step's exact request under per-item approval: one digest binds the request bytes, the record and the record check, and a changed request is not sent | On main ([#1355](https://github.com/OpenAdaptAI/OpenAdapt/pull/1355)) | Synthetic | [API_TIER.md](packages/flow/docs/API_TIER.md#under-an-approval-mode) |
 | Run an API step in a durable run: checkpoint the span after the save is sent, never resend or redo a save that may have landed, and reconcile it by reading the record back | On main ([#1358](https://github.com/OpenAdaptAI/OpenAdapt/pull/1358)) | Synthetic | [API_TIER.md](packages/flow/docs/API_TIER.md#in-a-durable-run) |
 | Run an admitted API step under a governed run authorization and the Standard or Regulated profile: the authorization names the API step by digest, the person who admits it names the right-record parameter, and the outcome reads `VERIFIED` | On main ([#1361](https://github.com/OpenAdaptAI/OpenAdapt/pull/1361)) | Synthetic | [API_TIER.md](packages/flow/docs/API_TIER.md#under-governance) |

llms-full.txt

@@ -597,6 +597,8 @@ improvising or retrying when something is off.
 | Run a step as a direct API call (`ApiActuator`, `ApiBinding`) | Released, hand-authored bindings | Synthetic benchmarks | `runtime/actuators/api.py` |
 | Capture a recording's network traffic and compile a clean save into an API step, with the same record check | On main ([#1269](https://github.com/OpenAdaptAI/OpenAdapt/pull/1269)) | Synthetic patients on a local OpenEMR test copy | network capture, `ApiBinding` |
 | Fall back from the API step to page structure when the API is unavailable, before anything is sent | On main ([#1269](https://github.com/OpenAdaptAI/OpenAdapt/pull/1269)) | Synthetic | [#1269](https://github.com/OpenAdaptAI/OpenAdapt/pull/1269) |
+| Run a form's own script before an API save instead of refusing the form: field handlers, `onsubmit`, submit listeners and custom validate.js rules (OpenEMR's `pastDate`) run on the run's values in a scratch copy of the session with every write blocked, and the save is sent only when the page lets the submit through and would send the same body | On main | Synthetic (headless Chromium against a local test page) | [API_TIER.md](https://github.com/OpenAdaptAI/OpenAdapt/blob/main/packages/flow/docs/API_TIER.md#what-happens-at-run-time), `runtime/actuators/form_eval.py` |
+| Declare the other writes in an API step's span as an ordered sequence: the page's own background requests (another document's script, loaded before the form, to an endpoint the form doesn't name) are listed and not sent; a write a step caused is sent in its recorded place before the save, read back by that step's record check, and a failure stops the run with nothing after it sent and nothing retried | On main | Synthetic | [API_TIER.md](https://github.com/OpenAdaptAI/OpenAdapt/blob/main/packages/flow/docs/API_TIER.md#other-writes-in-the-span) |
 | Approve an API step's exact request under per-item approval: one digest binds the request bytes, the record and the record check, and a changed request is not sent | On main ([#1355](https://github.com/OpenAdaptAI/OpenAdapt/pull/1355)) | Synthetic | [API_TIER.md](https://github.com/OpenAdaptAI/OpenAdapt/blob/main/packages/flow/docs/API_TIER.md#under-an-approval-mode) |
 | Run an API step in a durable run: checkpoint the span after the save is sent, never resend or redo a save that may have landed, and reconcile it by reading the record back | On main ([#1358](https://github.com/OpenAdaptAI/OpenAdapt/pull/1358)) | Synthetic | [API_TIER.md](https://github.com/OpenAdaptAI/OpenAdapt/blob/main/packages/flow/docs/API_TIER.md#in-a-durable-run) |
 | Run an admitted API step under a governed run authorization and the Standard or Regulated profile: the authorization names the API step by digest, the person who admits it names the right-record parameter, and the outcome reads `VERIFIED` | On main ([#1361](https://github.com/OpenAdaptAI/OpenAdapt/pull/1361)) | Synthetic | [API_TIER.md](https://github.com/OpenAdaptAI/OpenAdapt/blob/main/packages/flow/docs/API_TIER.md#under-governance) |