Run each workflow stage as its own task, with fan-out and fan-in

web/src/api.gen.ts

@@ -870,6 +870,10 @@ export interface components {
             merge_queued_at?: string;
             /** @description The name of the workflow the task froze at creation (getTaskWorkflow has its copy); absent for a task without one. */
             workflow?: string;
+            /** @description With workflow: the id every task of one run of the workflow shares. */
+            workflow_run?: string;
+            /** @description With workflow: the name of the stage this task runs. */
+            workflow_stage?: string;
         };
         Todo: {
             /** @description Whether the default branch has a TODO.md at its root. */
@@ -908,14 +912,12 @@ export interface components {
         };
         TaskCreate: {
             title: string;
-            /** @description The name of a workflow for the task to freeze: it keeps a copy of the workflow's definition as it is now. */
-            workflow?: string;
         };
         WorkflowSummary: {
             name: string;
             description: string;
         };
-        /** @description A workflow's file, which holds everything but its name: a sequence of stages run in order. Sent and returned as YAML. */
+        /** @description A workflow's file, which holds everything but its name: its stages, each run as its own task once the stages it comes after have finished. Sent and returned as YAML. */
         WorkflowDefinition: {
             description?: string;
             stages: components["schemas"]["Stage"][];
@@ -923,6 +925,13 @@ export interface components {
         Stage: {
             /** @description One line of 1 to 100 characters, unique within the workflow. */
             name: string;
+            /** @description The stages whose outputs this stage gets, by name; it starts once all of them have finished. Absent means the previous stage in the list (for the first stage, none); empty means it starts from the brief. */
+            after?: string[];
+            /**
+             * @description Where the stage's task branches from. parent (the default): the commit its one after stage finished at, or for a stage with none, where the workflow was started from. main: the project's default branch. Refused on a stage with more than one after stage, which always branches from the default branch.
+             * @enum {string}
+             */
+            base?: "parent" | "main";
             /** @description The stage agent's model, which also picks its vendor: gpt-* models run on Codex, every other model on Claude Code. */
             model: string;
             /** @description The stage agent's instructions. */
@@ -1072,8 +1081,6 @@ export interface components {
             forked_from?: string;
             /** @description With forked_from: the vendor's id of the last thing the fork keeps, a message for Claude Code, a turn for Codex. */
             forked_at?: string;
-            /** @description The stage (from 1) of the task's workflow this session runs; absent for a session outside a workflow. */
-            workflow_stage?: number;
         };
         SessionCreate: {
             prompt: string;