From 4e92004d62ac00b4755bd31d726db8f38dd20b6c Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Wed, 27 Aug 2025 23:33:48 +0000
Subject: [PATCH 01/36] Add workflow management with SpiffWorkflow and basic
 frontend UI

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/api/v1/api.py                  |   3 +-
 backend/app/api/v1/endpoints/workflows.py  |  50 +++++++++
 backend/app/services/workflow_service.py   | 117 ++++++++++++++++++++
 backend/app/workflows/simple_approval.bpmn |  26 +++++
 backend/requirements.txt                   |   3 +-
 frontend/src/App.vue                       |   9 +-
 frontend/src/components/WorkflowList.vue   | 120 +++++++++++++++++++++
 frontend/src/router/index.ts               |   6 +-
 8 files changed, 329 insertions(+), 5 deletions(-)
 create mode 100644 backend/app/api/v1/endpoints/workflows.py
 create mode 100644 backend/app/services/workflow_service.py
 create mode 100644 backend/app/workflows/simple_approval.bpmn
 create mode 100644 frontend/src/components/WorkflowList.vue

diff --git a/backend/app/api/v1/api.py b/backend/app/api/v1/api.py
index 71262a8..7023ed1 100644
--- a/backend/app/api/v1/api.py
+++ b/backend/app/api/v1/api.py
@@ -1,7 +1,8 @@
 from fastapi import APIRouter
-from app.api.v1.endpoints import states
+from app.api.v1.endpoints import states, workflows
 
 api_router = APIRouter()
 
 # Include all endpoint routers
 api_router.include_router(states.router, prefix="/states", tags=["states"])
+api_router.include_router(workflows.router, prefix="/workflows", tags=["workflows"])
diff --git a/backend/app/api/v1/endpoints/workflows.py b/backend/app/api/v1/endpoints/workflows.py
new file mode 100644
index 0000000..9d942ab
--- /dev/null
+++ b/backend/app/api/v1/endpoints/workflows.py
@@ -0,0 +1,50 @@
+from fastapi import APIRouter, HTTPException
+from pydantic import BaseModel, Field
+from typing import Any, Dict, List, Optional
+
+from app.services.workflow_service import WorkflowService
+
+
+router = APIRouter()
+
+
+class StartWorkflowRequest(BaseModel):
+    name: str = Field(default="Simple Approval")
+    bpmn_filename: str = Field(default="simple_approval.bpmn")
+    process_id: str = Field(default="SimpleApproval")
+
+
+class CompleteTaskRequest(BaseModel):
+    data: Dict[str, Any] = Field(default_factory=dict)
+
+
+@router.post("/start", summary="Start a new workflow instance")
+async def start_workflow(payload: StartWorkflowRequest):
+    try:
+        return WorkflowService.start_workflow(
+            name=payload.name,
+            bpmn_filename=payload.bpmn_filename,
+            process_id=payload.process_id,
+        )
+    except FileNotFoundError:
+        raise HTTPException(status_code=404, detail="BPMN file not found")
+    except Exception as exc:
+        raise HTTPException(status_code=500, detail=str(exc))
+
+
+@router.get("/", summary="List workflow instances")
+async def list_workflows():
+    return WorkflowService.list_workflows()
+
+
+@router.post("/{instance_id}/tasks/{task_id}/complete", summary="Complete a user task")
+async def complete_task(instance_id: str, task_id: int, payload: CompleteTaskRequest):
+    try:
+        return WorkflowService.complete_user_task(instance_id, task_id, payload.data)
+    except KeyError as exc:
+        raise HTTPException(status_code=404, detail=str(exc))
+    except ValueError as exc:
+        raise HTTPException(status_code=400, detail=str(exc))
+    except Exception as exc:
+        raise HTTPException(status_code=500, detail=str(exc))
+
diff --git a/backend/app/services/workflow_service.py b/backend/app/services/workflow_service.py
new file mode 100644
index 0000000..bde445f
--- /dev/null
+++ b/backend/app/services/workflow_service.py
@@ -0,0 +1,117 @@
+import threading
+import uuid
+from pathlib import Path
+from typing import Dict, List, Optional
+
+from SpiffWorkflow.bpmn.parser import BpmnParser
+from SpiffWorkflow.bpmn.workflow import BpmnWorkflow
+from SpiffWorkflow.task import Task
+from SpiffWorkflow.task_state import TaskState
+
+
+class WorkflowInstance:
+    def __init__(self, instance_id: str, name: str, workflow: BpmnWorkflow):
+        self.instance_id = instance_id
+        self.name = name
+        self.workflow = workflow
+
+    def to_dict(self) -> Dict:
+        return {
+            "id": self.instance_id,
+            "name": self.name,
+            "status": self._status(),
+            "ready_user_tasks": [
+                {
+                    "id": str(task.id),
+                    "name": task.get_name(),
+                    "spec_name": task.task_spec.name,
+                }
+                for task in WorkflowService.get_ready_user_tasks(self.workflow)
+            ],
+        }
+
+    def _status(self) -> str:
+        if self.workflow.is_completed():
+            return "COMPLETED"
+        if self.workflow.is_cancelled():
+            return "CANCELLED"
+        return "RUNNING"
+
+
+class WorkflowService:
+    _lock = threading.Lock()
+    _instances: Dict[str, WorkflowInstance] = {}
+    _parser: Optional[BpmnParser] = None
+    _spec_cache: Dict[str, object] = {}
+
+    @staticmethod
+    def _get_parser() -> BpmnParser:
+        if WorkflowService._parser is None:
+            WorkflowService._parser = BpmnParser()
+        return WorkflowService._parser
+
+    @staticmethod
+    def _get_bpmn_path(filename: str) -> Path:
+        base = Path(__file__).resolve().parent.parent / "workflows"
+        return base / filename
+
+    @staticmethod
+    def load_spec(bpmn_filename: str, process_id: str):
+        cache_key = f"{bpmn_filename}::{process_id}"
+        if cache_key in WorkflowService._spec_cache:
+            return WorkflowService._spec_cache[cache_key]
+        parser = WorkflowService._get_parser()
+        path = WorkflowService._get_bpmn_path(bpmn_filename)
+        spec = parser.parse(str(path), process_id)
+        WorkflowService._spec_cache[cache_key] = spec
+        return spec
+
+    @staticmethod
+    def start_workflow(name: str, bpmn_filename: str, process_id: str) -> Dict:
+        spec = WorkflowService.load_spec(bpmn_filename, process_id)
+        workflow = BpmnWorkflow(spec)
+        workflow.do_engine_steps()
+        instance_id = str(uuid.uuid4())
+        instance = WorkflowInstance(instance_id, name, workflow)
+        with WorkflowService._lock:
+            WorkflowService._instances[instance_id] = instance
+        return instance.to_dict()
+
+    @staticmethod
+    def list_workflows() -> List[Dict]:
+        with WorkflowService._lock:
+            return [instance.to_dict() for instance in WorkflowService._instances.values()]
+
+    @staticmethod
+    def get_instance(instance_id: str) -> WorkflowInstance:
+        with WorkflowService._lock:
+            instance = WorkflowService._instances.get(instance_id)
+        if instance is None:
+            raise KeyError("Workflow instance not found")
+        return instance
+
+    @staticmethod
+    def get_ready_user_tasks(workflow: BpmnWorkflow) -> List[Task]:
+        tasks: List[Task] = workflow.get_tasks(state=TaskState.READY)
+        def is_user_task(t: Task) -> bool:
+            name = getattr(t.task_spec, "bpmn_name", "")
+            if isinstance(name, str) and name.lower() == "usertask":
+                return True
+            # Fallback to class name heuristic
+            return "user" in t.task_spec.__class__.__name__.lower()
+        return [t for t in tasks if is_user_task(t)]
+
+    @staticmethod
+    def complete_user_task(instance_id: str, task_id: int, data: Dict) -> Dict:
+        instance = WorkflowService.get_instance(instance_id)
+        workflow = instance.workflow
+        task: Optional[Task] = next((t for t in workflow.get_tasks() if t.id == task_id), None)
+        if task is None:
+            raise KeyError("Task not found")
+        if task.state != TaskState.READY:
+            raise ValueError("Task is not ready")
+        task.data.update(data or {})
+        workflow.complete_task_from_id(task_id)
+        workflow.do_engine_steps()
+        return instance.to_dict()
+
diff --git a/backend/app/workflows/simple_approval.bpmn b/backend/app/workflows/simple_approval.bpmn
new file mode 100644
index 0000000..8396447
--- /dev/null
+++ b/backend/app/workflows/simple_approval.bpmn
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<definitions xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL"
+             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+             xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI"
+             xmlns:omgdc="http://www.omg.org/spec/DD/20100524/DC"
+             xmlns:omgdi="http://www.omg.org/spec/DD/20100524/DI"
+             id="Defs"
+             targetNamespace="http://example.com/bpmn/simple_approval">
+  <process id="SimpleApproval" name="Simple Approval" isExecutable="true">
+    <startEvent id="start" name="Start" />
+    <userTask id="approval_task" name="Approve Request" />
+    <exclusiveGateway id="gateway" name="Approved?" />
+    <endEvent id="approved_end" name="Approved" />
+    <endEvent id="rejected_end" name="Rejected" />
+
+    <sequenceFlow id="flow_start_to_task" sourceRef="start" targetRef="approval_task" />
+    <sequenceFlow id="flow_task_to_gateway" sourceRef="approval_task" targetRef="gateway" />
+    <sequenceFlow id="flow_gateway_to_approved" sourceRef="gateway" targetRef="approved_end">
+      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${approved == true}]]></conditionExpression>
+    </sequenceFlow>
+    <sequenceFlow id="flow_gateway_to_rejected" sourceRef="gateway" targetRef="rejected_end">
+      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${approved != true}]]></conditionExpression>
+    </sequenceFlow>
+  </process>
+</definitions>
+
diff --git a/backend/requirements.txt b/backend/requirements.txt
index 57004d2..114d8eb 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -7,4 +7,5 @@ sqlalchemy==2.0.23
 psycopg2-binary==2.9.9
 alembic==1.12.1
 pytest==7.4.2
-flake8==7.0.0
\ No newline at end of file
+flake8==7.0.0
+SpiffWorkflow
\ No newline at end of file
diff --git a/frontend/src/App.vue b/frontend/src/App.vue
index 8c9655e..a7ee05a 100644
--- a/frontend/src/App.vue
+++ b/frontend/src/App.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import HelloWorld from './components/HelloWorld.vue';
+import { RouterLink, RouterView } from 'vue-router';
 </script>
 
 <template>
@@ -11,7 +11,12 @@ import HelloWorld from './components/HelloWorld.vue';
       <img src="./assets/vue.svg" class="logo vue" alt="Vue logo" />
     </a>
   </div>
-  <HelloWorld msg="Vite + Vue" />
+  <nav style="margin: 16px 0">
+    <RouterLink to="/">Home</RouterLink>
+    |
+    <RouterLink to="/workflows">Workflows</RouterLink>
+  </nav>
+  <RouterView />
 </template>
 
 <style scoped>
diff --git a/frontend/src/components/WorkflowList.vue b/frontend/src/components/WorkflowList.vue
new file mode 100644
index 0000000..d6d3fb4
--- /dev/null
+++ b/frontend/src/components/WorkflowList.vue
@@ -0,0 +1,120 @@
+<script setup lang="ts">
+import { ref, onMounted } from 'vue';
+
+type TaskSummary = {
+  id: string;
+  name: string;
+  spec_name: string;
+};
+
+type WorkflowInstance = {
+  id: string;
+  name: string;
+  status: string;
+  ready_user_tasks: TaskSummary[];
+};
+
+const apiBase = import.meta.env.VITE_API_BASE ?? 'http://localhost:8300/api/v1';
+
+const loading = ref(false);
+const error = ref<string | null>(null);
+const instances = ref<WorkflowInstance[]>([]);
+
+async function fetchInstances() {
+  loading.value = true;
+  error.value = null;
+  try {
+    const res = await fetch(`${apiBase}/workflows/`);
+    if (!res.ok) throw new Error(`Failed to load: ${res.status}`);
+    instances.value = (await res.json()) as WorkflowInstance[];
+  } catch (e: unknown) {
+    error.value = e instanceof Error ? e.message : String(e);
+  } finally {
+    loading.value = false;
+  }
+}
+
+async function startWorkflow() {
+  loading.value = true;
+  error.value = null;
+  try {
+    const res = await fetch(`${apiBase}/workflows/start`, {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ name: 'Simple Approval' }),
+    });
+    if (!res.ok) throw new Error(`Failed to start: ${res.status}`);
+    await fetchInstances();
+  } catch (e: unknown) {
+    error.value = e instanceof Error ? e.message : String(e);
+  } finally {
+    loading.value = false;
+  }
+}
+
+async function approve(instanceId: string, taskId: string) {
+  await completeTask(instanceId, taskId, { approved: true });
+}
+
+async function reject(instanceId: string, taskId: string) {
+  await completeTask(instanceId, taskId, { approved: false });
+}
+
+async function completeTask(instanceId: string, taskId: string, data: Record<string, unknown>) {
+  loading.value = true;
+  error.value = null;
+  try {
+    const res = await fetch(`${apiBase}/workflows/${instanceId}/tasks/${taskId}/complete`, {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ data }),
+    });
+    if (!res.ok) throw new Error(`Failed to complete: ${res.status}`);
+    await fetchInstances();
+  } catch (e: unknown) {
+    error.value = e instanceof Error ? e.message : String(e);
+  } finally {
+    loading.value = false;
+  }
+}
+
+onMounted(fetchInstances);
+</script>
+
+<template>
+  <div>
+    <h2>Workflows</h2>
+    <button @click="startWorkflow" :disabled="loading">Start Simple Approval</button>
+    <div v-if="loading">Loading...</div>
+    <div v-if="error" style="color: red">{{ error }}</div>
+    <ul>
+      <li v-for="wf in instances" :key="wf.id">
+        <strong>{{ wf.name }}</strong>
+        <span> — {{ wf.status }}</span>
+        <div v-if="wf.ready_user_tasks.length">
+          <div v-for="t in wf.ready_user_tasks" :key="t.id" style="margin-top: 8px">
+            Task: {{ t.name }} ({{ t.spec_name }})
+            <button @click="approve(wf.id, t.id)" :disabled="loading">Approve</button>
+            <button @click="reject(wf.id, t.id)" :disabled="loading">Reject</button>
+          </div>
+        </div>
+      </li>
+    </ul>
+  </div>
+</template>
+
+<style scoped>
+button {
+  margin: 0 6px;
+}
+ul {
+  list-style: none;
+  padding: 0;
+}
+li {
+  margin: 10px 0;
+  padding: 10px;
+  border: 1px solid #ddd;
+  border-radius: 6px;
+}
+</style>
diff --git a/frontend/src/router/index.ts b/frontend/src/router/index.ts
index e416ec6..b3d8803 100644
--- a/frontend/src/router/index.ts
+++ b/frontend/src/router/index.ts
@@ -2,8 +2,12 @@ import { createRouter, createWebHashHistory } from 'vue-router';
 import type { RouteRecordRaw } from 'vue-router';
 
 import HelloWorld from '../components/HelloWorld.vue';
+import WorkflowList from '../components/WorkflowList.vue';
 
-const routes: Array<RouteRecordRaw> = [{ path: '/', name: 'home', component: HelloWorld }];
+const routes: Array<RouteRecordRaw> = [
+  { path: '/', name: 'home', component: HelloWorld },
+  { path: '/workflows', name: 'workflows', component: WorkflowList },
+];
 
 export const router = createRouter({
   history: createWebHashHistory(),

From 9effddcb40d7245fb77d5cc05d688948a8adf668 Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Wed, 27 Aug 2025 23:44:20 +0000
Subject: [PATCH 02/36] Move WorkflowList component from components to view
 directory

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 frontend/src/router/index.ts                       | 2 +-
 frontend/src/{components => view}/WorkflowList.vue | 0
 2 files changed, 1 insertion(+), 1 deletion(-)
 rename frontend/src/{components => view}/WorkflowList.vue (100%)

diff --git a/frontend/src/router/index.ts b/frontend/src/router/index.ts
index b3d8803..9946ab2 100644
--- a/frontend/src/router/index.ts
+++ b/frontend/src/router/index.ts
@@ -2,7 +2,7 @@ import { createRouter, createWebHashHistory } from 'vue-router';
 import type { RouteRecordRaw } from 'vue-router';
 
 import HelloWorld from '../components/HelloWorld.vue';
-import WorkflowList from '../components/WorkflowList.vue';
+import WorkflowList from '../view/WorkflowList.vue';
 
 const routes: Array<RouteRecordRaw> = [
   { path: '/', name: 'home', component: HelloWorld },
diff --git a/frontend/src/components/WorkflowList.vue b/frontend/src/view/WorkflowList.vue
similarity index 100%
rename from frontend/src/components/WorkflowList.vue
rename to frontend/src/view/WorkflowList.vue

From fa7c2c7c3a2008a4841a23aa6289472008455c73 Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Wed, 27 Aug 2025 23:52:02 +0000
Subject: [PATCH 03/36] Checkpoint before follow-up message

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 frontend/src/constants/index.ts    |  2 ++
 frontend/src/services/http.ts      | 22 +++++++++++++++++
 frontend/src/services/workflows.ts | 22 +++++++++++++++++
 frontend/src/types/workflow.ts     | 13 ++++++++++
 frontend/src/view/WorkflowList.vue | 39 +++++++-----------------------
 5 files changed, 68 insertions(+), 30 deletions(-)
 create mode 100644 frontend/src/constants/index.ts
 create mode 100644 frontend/src/services/http.ts
 create mode 100644 frontend/src/services/workflows.ts
 create mode 100644 frontend/src/types/workflow.ts

diff --git a/frontend/src/constants/index.ts b/frontend/src/constants/index.ts
new file mode 100644
index 0000000..e9860ac
--- /dev/null
+++ b/frontend/src/constants/index.ts
@@ -0,0 +1,2 @@
+export const API_BASE = import.meta.env.VITE_API_BASE ?? 'http://localhost:8300/api/v1';
+
diff --git a/frontend/src/services/http.ts b/frontend/src/services/http.ts
new file mode 100644
index 0000000..1fb25a1
--- /dev/null
+++ b/frontend/src/services/http.ts
@@ -0,0 +1,22 @@
+import { API_BASE } from '../constants';
+
+type HttpMethod = 'GET' | 'POST' | 'PUT' | 'DELETE' | 'PATCH';
+
+export async function http<T = unknown>(path: string, options?: { method?: HttpMethod; body?: unknown; headers?: Record<string, string> }): Promise<T> {
+  const { method = 'GET', body, headers = {} } = options ?? {};
+  const res = await fetch(`${API_BASE}${path}`, {
+    method,
+    headers: {
+      'Content-Type': 'application/json',
+      ...headers,
+    },
+    body: body !== undefined ? JSON.stringify(body) : undefined,
+  });
+  if (!res.ok) {
+    const text = await res.text().catch(() => '');
+    throw new Error(`HTTP ${res.status} ${res.statusText}${text ? `: ${text}` : ''}`);
+  }
+  if (res.status === 204) return undefined as T;
+  return (await res.json()) as T;
+}
+
diff --git a/frontend/src/services/workflows.ts b/frontend/src/services/workflows.ts
new file mode 100644
index 0000000..582816c
--- /dev/null
+++ b/frontend/src/services/workflows.ts
@@ -0,0 +1,22 @@
+import { http } from './http';
+import type { WorkflowInstance } from '../types/workflow';
+
+export async function startWorkflow(name = 'Simple Approval'): Promise<WorkflowInstance> {
+  return http<WorkflowInstance>('/workflows/start', { method: 'POST', body: { name } });
+}
+
+export async function listWorkflows(): Promise<WorkflowInstance[]> {
+  return http<WorkflowInstance[]>('/workflows/');
+}
+
+export async function completeUserTask(
+  instanceId: string,
+  taskId: string,
+  data: Record<string, unknown>,
+): Promise<WorkflowInstance> {
+  return http<WorkflowInstance>(`/workflows/${instanceId}/tasks/${taskId}/complete`, {
+    method: 'POST',
+    body: { data },
+  });
+}
+
diff --git a/frontend/src/types/workflow.ts b/frontend/src/types/workflow.ts
new file mode 100644
index 0000000..0538581
--- /dev/null
+++ b/frontend/src/types/workflow.ts
@@ -0,0 +1,13 @@
+export type TaskSummary = {
+  id: string;
+  name: string;
+  spec_name: string;
+};
+
+export type WorkflowInstance = {
+  id: string;
+  name: string;
+  status: string;
+  ready_user_tasks: TaskSummary[];
+};
+
diff --git a/frontend/src/view/WorkflowList.vue b/frontend/src/view/WorkflowList.vue
index d6d3fb4..84dbc4a 100644
--- a/frontend/src/view/WorkflowList.vue
+++ b/frontend/src/view/WorkflowList.vue
@@ -1,20 +1,11 @@
 <script setup lang="ts">
 import { ref, onMounted } from 'vue';
-
-type TaskSummary = {
-  id: string;
-  name: string;
-  spec_name: string;
-};
-
-type WorkflowInstance = {
-  id: string;
-  name: string;
-  status: string;
-  ready_user_tasks: TaskSummary[];
-};
-
-const apiBase = import.meta.env.VITE_API_BASE ?? 'http://localhost:8300/api/v1';
+import type { WorkflowInstance } from '../types/workflow';
+import {
+  listWorkflows,
+  startWorkflow as apiStartWorkflow,
+  completeUserTask,
+} from '../services/workflows';
 
 const loading = ref(false);
 const error = ref<string | null>(null);
@@ -24,9 +15,7 @@ async function fetchInstances() {
   loading.value = true;
   error.value = null;
   try {
-    const res = await fetch(`${apiBase}/workflows/`);
-    if (!res.ok) throw new Error(`Failed to load: ${res.status}`);
-    instances.value = (await res.json()) as WorkflowInstance[];
+    instances.value = await listWorkflows();
   } catch (e: unknown) {
     error.value = e instanceof Error ? e.message : String(e);
   } finally {
@@ -38,12 +27,7 @@ async function startWorkflow() {
   loading.value = true;
   error.value = null;
   try {
-    const res = await fetch(`${apiBase}/workflows/start`, {
-      method: 'POST',
-      headers: { 'Content-Type': 'application/json' },
-      body: JSON.stringify({ name: 'Simple Approval' }),
-    });
-    if (!res.ok) throw new Error(`Failed to start: ${res.status}`);
+    await apiStartWorkflow('Simple Approval');
     await fetchInstances();
   } catch (e: unknown) {
     error.value = e instanceof Error ? e.message : String(e);
@@ -64,12 +48,7 @@ async function completeTask(instanceId: string, taskId: string, data: Record<str
   loading.value = true;
   error.value = null;
   try {
-    const res = await fetch(`${apiBase}/workflows/${instanceId}/tasks/${taskId}/complete`, {
-      method: 'POST',
-      headers: { 'Content-Type': 'application/json' },
-      body: JSON.stringify({ data }),
-    });
-    if (!res.ok) throw new Error(`Failed to complete: ${res.status}`);
+    await completeUserTask(instanceId, taskId, data);
     await fetchInstances();
   } catch (e: unknown) {
     error.value = e instanceof Error ? e.message : String(e);

From 8ded55dcb08a327a1706398c086e0cd0b0e90da5 Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Wed, 27 Aug 2025 23:52:17 +0000
Subject: [PATCH 04/36] Update SpiffWorkflow to version 3.1.1

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/requirements.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/backend/requirements.txt b/backend/requirements.txt
index 114d8eb..e7db10e 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -8,4 +8,4 @@ psycopg2-binary==2.9.9
 alembic==1.12.1
 pytest==7.4.2
 flake8==7.0.0
-SpiffWorkflow
\ No newline at end of file
+SpiffWorkflow==3.1.1
\ No newline at end of file

From 4880422411c0ff9165deaa26db512974c5cf71f8 Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Wed, 27 Aug 2025 23:54:49 +0000
Subject: [PATCH 05/36] Simplify SpiffWorkflow imports in workflow service

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/services/workflow_service.py | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/backend/app/services/workflow_service.py b/backend/app/services/workflow_service.py
index bde445f..7f07c26 100644
--- a/backend/app/services/workflow_service.py
+++ b/backend/app/services/workflow_service.py
@@ -5,8 +5,7 @@
 
 from SpiffWorkflow.bpmn.parser import BpmnParser
 from SpiffWorkflow.bpmn.workflow import BpmnWorkflow
-from SpiffWorkflow.task import Task
-from SpiffWorkflow.task_state import TaskState
+from SpiffWorkflow.task import Task, TaskState
 
 
 class WorkflowInstance:

From ccfb613fcf93f12f53ba3c61da48fd12fbe8336f Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Wed, 27 Aug 2025 23:58:13 +0000
Subject: [PATCH 06/36] Checkpoint before follow-up message

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/services/workflow_service.py | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/backend/app/services/workflow_service.py b/backend/app/services/workflow_service.py
index 7f07c26..870a186 100644
--- a/backend/app/services/workflow_service.py
+++ b/backend/app/services/workflow_service.py
@@ -1,7 +1,7 @@
 import threading
 import uuid
 from pathlib import Path
-from typing import Dict, List, Optional
+from typing import Optional
 
 from SpiffWorkflow.bpmn.parser import BpmnParser
 from SpiffWorkflow.bpmn.workflow import BpmnWorkflow
@@ -14,7 +14,7 @@ def __init__(self, instance_id: str, name: str, workflow: BpmnWorkflow):
         self.name = name
         self.workflow = workflow
 
-    def to_dict(self) -> Dict:
+    def to_dict(self) -> dict:
         return {
             "id": self.instance_id,
             "name": self.name,
@@ -39,9 +39,9 @@ def _status(self) -> str:
 
 class WorkflowService:
     _lock = threading.Lock()
-    _instances: Dict[str, WorkflowInstance] = {}
+    _instances: dict[str, WorkflowInstance] = {}
     _parser: Optional[BpmnParser] = None
-    _spec_cache: Dict[str, object] = {}
+    _spec_cache: dict[str, object] = {}
 
     @staticmethod
     def _get_parser() -> BpmnParser:
@@ -77,7 +77,7 @@ def start_workflow(name: str, bpmn_filename: str, process_id: str) -> Dict:
         return instance.to_dict()
 
     @staticmethod
-    def list_workflows() -> List[Dict]:
+    def list_workflows() -> list[dict]:
         with WorkflowService._lock:
             return [instance.to_dict() for instance in WorkflowService._instances.values()]
 
@@ -90,8 +90,8 @@ def get_instance(instance_id: str) -> WorkflowInstance:
         return instance
 
     @staticmethod
-    def get_ready_user_tasks(workflow: BpmnWorkflow) -> List[Task]:
-        tasks: List[Task] = workflow.get_tasks(state=TaskState.READY)
+    def get_ready_user_tasks(workflow: BpmnWorkflow) -> list[Task]:
+        tasks: list[Task] = workflow.get_tasks(state=TaskState.READY)
         def is_user_task(t: Task) -> bool:
             name = getattr(t.task_spec, "bpmn_name", "")
             if isinstance(name, str) and name.lower() == "usertask":
@@ -101,7 +101,7 @@ def is_user_task(t: Task) -> bool:
         return [t for t in tasks if is_user_task(t)]
 
     @staticmethod
-    def complete_user_task(instance_id: str, task_id: int, data: Dict) -> Dict:
+    def complete_user_task(instance_id: str, task_id: int, data: dict) -> dict:
         instance = WorkflowService.get_instance(instance_id)
         workflow = instance.workflow
         task: Optional[Task] = next((t for t in workflow.get_tasks() if t.id == task_id), None)

From 70b455702df4e5a21d0e732f1f28203240de2184 Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Wed, 27 Aug 2025 23:59:21 +0000
Subject: [PATCH 07/36] Checkpoint before follow-up message

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/services/workflow_service.py | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/backend/app/services/workflow_service.py b/backend/app/services/workflow_service.py
index 870a186..e727f27 100644
--- a/backend/app/services/workflow_service.py
+++ b/backend/app/services/workflow_service.py
@@ -66,7 +66,11 @@ def load_spec(bpmn_filename: str, process_id: str):
         return spec
 
     @staticmethod
-    def start_workflow(name: str, bpmn_filename: str, process_id: str) -> Dict:
+    def start_workflow(
+        name: str,
+        bpmn_filename: str,
+        process_id: str,
+    ) -> dict:
         spec = WorkflowService.load_spec(bpmn_filename, process_id)
         workflow = BpmnWorkflow(spec)
         workflow.do_engine_steps()
@@ -79,7 +83,10 @@ def start_workflow(name: str, bpmn_filename: str, process_id: str) -> Dict:
     @staticmethod
     def list_workflows() -> list[dict]:
         with WorkflowService._lock:
-            return [instance.to_dict() for instance in WorkflowService._instances.values()]
+            return [
+                instance.to_dict()
+                for instance in WorkflowService._instances.values()
+            ]
 
     @staticmethod
     def get_instance(instance_id: str) -> WorkflowInstance:
@@ -104,7 +111,10 @@ def is_user_task(t: Task) -> bool:
     def complete_user_task(instance_id: str, task_id: int, data: dict) -> dict:
         instance = WorkflowService.get_instance(instance_id)
         workflow = instance.workflow
-        task: Optional[Task] = next((t for t in workflow.get_tasks() if t.id == task_id), None)
+        task: Optional[Task] = next(
+            (t for t in workflow.get_tasks() if t.id == task_id),
+            None,
+        )
         if task is None:
             raise KeyError("Task not found")
         if task.state != TaskState.READY:

From 206cb412564ee8764cfb7f1335ecb5c92506b25a Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 00:01:12 +0000
Subject: [PATCH 08/36] Update SpiffWorkflow parsing to use 3.x method for
 loading BPMN specs

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/services/workflow_service.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/backend/app/services/workflow_service.py b/backend/app/services/workflow_service.py
index e727f27..9754951 100644
--- a/backend/app/services/workflow_service.py
+++ b/backend/app/services/workflow_service.py
@@ -61,7 +61,9 @@ def load_spec(bpmn_filename: str, process_id: str):
             return WorkflowService._spec_cache[cache_key]
         parser = WorkflowService._get_parser()
         path = WorkflowService._get_bpmn_path(bpmn_filename)
-        spec = parser.parse(str(path), process_id)
+        # SpiffWorkflow 3.x: register BPMN file, then get spec by process id
+        parser.add_bpmn_file(str(path))
+        spec = parser.get_spec(process_id)
         WorkflowService._spec_cache[cache_key] = spec
         return spec
 

From b72aabf417dcc6cbeee7ecfe55edd1a43a4b6765 Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 00:08:23 +0000
Subject: [PATCH 09/36] Fix workflow status check for SpiffWorkflow 3.x
 compatibility

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/services/workflow_service.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/backend/app/services/workflow_service.py b/backend/app/services/workflow_service.py
index 9754951..8ff667b 100644
--- a/backend/app/services/workflow_service.py
+++ b/backend/app/services/workflow_service.py
@@ -32,7 +32,9 @@ def to_dict(self) -> dict:
     def _status(self) -> str:
         if self.workflow.is_completed():
             return "COMPLETED"
-        if self.workflow.is_cancelled():
+        # SpiffWorkflow 3.x uses American spelling
+        is_canceled = getattr(self.workflow, "is_canceled", None)
+        if callable(is_canceled) and is_canceled():
             return "CANCELLED"
         return "RUNNING"
 

From d0e7a7e46ae29726283ae203be86a8b7acb2d1b2 Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 00:13:04 +0000
Subject: [PATCH 10/36] Fix user task name retrieval in workflow instance
 serialization

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/services/workflow_service.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/backend/app/services/workflow_service.py b/backend/app/services/workflow_service.py
index 8ff667b..8016c89 100644
--- a/backend/app/services/workflow_service.py
+++ b/backend/app/services/workflow_service.py
@@ -22,7 +22,7 @@ def to_dict(self) -> dict:
             "ready_user_tasks": [
                 {
                     "id": str(task.id),
-                    "name": task.get_name(),
+                    "name": task.task_spec.name,
                     "spec_name": task.task_spec.name,
                 }
                 for task in WorkflowService.get_ready_user_tasks(self.workflow)

From 285394820f658c2eea77cc1fcb0b131c64ad2300 Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 00:21:11 +0000
Subject: [PATCH 11/36] Refactor workflow task completion with explicit
 approval data model

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/api/v1/endpoints/workflows.py | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/backend/app/api/v1/endpoints/workflows.py b/backend/app/api/v1/endpoints/workflows.py
index 9d942ab..3e97c1d 100644
--- a/backend/app/api/v1/endpoints/workflows.py
+++ b/backend/app/api/v1/endpoints/workflows.py
@@ -1,6 +1,5 @@
 from fastapi import APIRouter, HTTPException
 from pydantic import BaseModel, Field
-from typing import Any, Dict, List, Optional
 
 from app.services.workflow_service import WorkflowService
 
@@ -15,7 +14,10 @@ class StartWorkflowRequest(BaseModel):
 
 
 class CompleteTaskRequest(BaseModel):
-    data: Dict[str, Any] = Field(default_factory=dict)
+    class ApprovalData(BaseModel):
+        approved: bool
+
+    data: ApprovalData
 
 
 @router.post("/start", summary="Start a new workflow instance")
@@ -40,7 +42,11 @@ async def list_workflows():
 @router.post("/{instance_id}/tasks/{task_id}/complete", summary="Complete a user task")
 async def complete_task(instance_id: str, task_id: int, payload: CompleteTaskRequest):
     try:
-        return WorkflowService.complete_user_task(instance_id, task_id, payload.data)
+        return WorkflowService.complete_user_task(
+            instance_id,
+            task_id,
+            payload.data.model_dump(),
+        )
     except KeyError as exc:
         raise HTTPException(status_code=404, detail=str(exc))
     except ValueError as exc:

From f9de3ad5e4cec7b3ec583719bc5f5ecfcc320eca Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 00:23:25 +0000
Subject: [PATCH 12/36] Update type hints to use Python 3.10+ syntax in
 state-related modules

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/api/v1/endpoints/states.py | 12 ++++++------
 backend/app/schemas/state.py           | 15 +++++++--------
 backend/app/services/state_service.py  | 16 ++++++++--------
 3 files changed, 21 insertions(+), 22 deletions(-)

diff --git a/backend/app/api/v1/endpoints/states.py b/backend/app/api/v1/endpoints/states.py
index c4b8b80..5532809 100644
--- a/backend/app/api/v1/endpoints/states.py
+++ b/backend/app/api/v1/endpoints/states.py
@@ -1,6 +1,5 @@
 from fastapi import APIRouter, Depends, HTTPException, Query
 from sqlalchemy.orm import Session
-from typing import List
 from app.database import get_db
 from app.schemas.state import StateCreate, StateUpdate, StateResponse
 from app.services.state_service import StateService
@@ -8,7 +7,7 @@
 router = APIRouter()
 
 
-@router.get("/", response_model=List[StateResponse], summary="Get all states")
+@router.get("/", response_model=list[StateResponse], summary="Get all states")
 async def get_states(
     skip: int = Query(0, ge=0, description="Number of records to skip"),
     limit: int = Query(100,
@@ -27,10 +26,11 @@ async def get_states(
     return states
 
 
-@router.get("/active",
-            response_model=List[StateResponse],
-            summary="Get active states"
-            )
+@router.get(
+    "/active",
+    response_model=list[StateResponse],
+    summary="Get active states",
+)
 async def get_active_states(db: Session = Depends(get_db)):
     """
     Retrieve all active states, ordered by sort_order.
diff --git a/backend/app/schemas/state.py b/backend/app/schemas/state.py
index 64a08cb..e5258a4 100644
--- a/backend/app/schemas/state.py
+++ b/backend/app/schemas/state.py
@@ -1,5 +1,4 @@
 from pydantic import BaseModel, Field, ConfigDict, field_serializer
-from typing import Optional
 from datetime import datetime
 
 
@@ -13,7 +12,7 @@ class StateBase(CustomBaseModel):
                       max_length=50,
                       description="State name"
                       )
-    description: Optional[str] = Field(None,
+    description: str | None = Field(None,
                                        max_length=200,
                                        description="State description"
                                        )
@@ -26,17 +25,17 @@ class StateCreate(StateBase):
 
 
 class StateUpdate(CustomBaseModel):
-    name: Optional[str] = Field(None, min_length=1, max_length=50)
-    description: Optional[str] = Field(None, max_length=200)
-    is_active: Optional[bool] = None
-    sort_order: Optional[int] = Field(None, ge=0)
+    name: str | None = Field(None, min_length=1, max_length=50)
+    description: str | None = Field(None, max_length=200)
+    is_active: bool | None = None
+    sort_order: int | None = Field(None, ge=0)
 
 
 class StateResponse(StateBase):
     id: int
     created_at: datetime
-    updated_at: Optional[datetime] = None
+    updated_at: datetime | None = None
 
     @field_serializer("created_at", "updated_at", when_used="json")
-    def serialize_dt(self, dt: Optional[datetime]) -> Optional[str]:
+    def serialize_dt(self, dt: datetime | None) -> str | None:
         return dt.isoformat() if dt else None
diff --git a/backend/app/services/state_service.py b/backend/app/services/state_service.py
index 3e15078..f363cf1 100644
--- a/backend/app/services/state_service.py
+++ b/backend/app/services/state_service.py
@@ -1,6 +1,5 @@
 from sqlalchemy.orm import Session
 from sqlalchemy.exc import IntegrityError
-from typing import List, Optional
 from app.models.state import State
 from app.schemas.state import StateCreate, StateUpdate
 from fastapi import HTTPException
@@ -8,10 +7,11 @@
 
 class StateService:
     @staticmethod
-    def get_states(db: Session,
-                   skip: int = 0,
-                   limit: int = 100
-                   ) -> List[State]:
+    def get_states(
+        db: Session,
+        skip: int = 0,
+        limit: int = 100,
+    ) -> list[State]:
         """Get all states with pagination, ordered by sort_order"""
         return (
             db.query(State)
@@ -22,17 +22,17 @@ def get_states(db: Session,
         )
 
     @staticmethod
-    def get_state_by_id(db: Session, state_id: int) -> Optional[State]:
+    def get_state_by_id(db: Session, state_id: int) -> State | None:
         """Get state by ID"""
         return db.query(State).filter(State.id == state_id).first()
 
     @staticmethod
-    def get_state_by_name(db: Session, name: str) -> Optional[State]:
+    def get_state_by_name(db: Session, name: str) -> State | None:
         """Get state by name"""
         return db.query(State).filter(State.name == name).first()
 
     @staticmethod
-    def get_active_states(db: Session) -> List[State]:
+    def get_active_states(db: Session) -> list[State]:
         """Get all active states, ordered by sort_order"""
         return (
             db.query(State)

From 88e0034182a9de5292a3e822cad48440444879b8 Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 00:25:55 +0000
Subject: [PATCH 13/36] Refactor states endpoint and service with improved code
 formatting

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/api/v1/endpoints/states.py | 59 ++++++++++++++------------
 backend/app/services/state_service.py  | 11 ++---
 2 files changed, 38 insertions(+), 32 deletions(-)

diff --git a/backend/app/api/v1/endpoints/states.py b/backend/app/api/v1/endpoints/states.py
index 5532809..ef95b5f 100644
--- a/backend/app/api/v1/endpoints/states.py
+++ b/backend/app/api/v1/endpoints/states.py
@@ -10,12 +10,13 @@
 @router.get("/", response_model=list[StateResponse], summary="Get all states")
 async def get_states(
     skip: int = Query(0, ge=0, description="Number of records to skip"),
-    limit: int = Query(100,
-                       ge=1,
-                       le=1000,
-                       description="Maximum number of records to return"
-                       ),
-    db: Session = Depends(get_db)
+    limit: int = Query(
+        100,
+        ge=1,
+        le=1000,
+        description="Maximum number of records to return",
+    ),
+    db: Session = Depends(get_db),
 ):
     """
     Retrieve all states with pagination support, ordered by sort_order.
@@ -39,13 +40,14 @@ async def get_active_states(db: Session = Depends(get_db)):
     return states
 
 
-@router.get("/{state_id}",
-            response_model=StateResponse,
-            summary="Get state by ID"
-            )
+@router.get(
+    "/{state_id}",
+    response_model=StateResponse,
+    summary="Get state by ID",
+)
 async def get_state(
     state_id: int,
-    db: Session = Depends(get_db)
+    db: Session = Depends(get_db),
 ):
     """
     Retrieve a specific state by its ID.
@@ -57,14 +59,15 @@ async def get_state(
     return state
 
 
-@router.post("/",
-             response_model=StateResponse,
-             status_code=201,
-             summary="Create new state"
-             )
+@router.post(
+    "/",
+    response_model=StateResponse,
+    status_code=201,
+    summary="Create new state",
+)
 async def create_state(
     state: StateCreate,
-    db: Session = Depends(get_db)
+    db: Session = Depends(get_db),
 ):
     """
     Create a new state.
@@ -77,14 +80,15 @@ async def create_state(
     return StateService.create_state(db, state)
 
 
-@router.put("/{state_id}",
-            response_model=StateResponse,
-            summary="Update state"
-            )
+@router.put(
+    "/{state_id}",
+    response_model=StateResponse,
+    summary="Update state",
+)
 async def update_state(
     state_id: int,
     state_update: StateUpdate,
-    db: Session = Depends(get_db)
+    db: Session = Depends(get_db),
 ):
     """
     Update an existing state.
@@ -98,7 +102,7 @@ async def update_state(
 @router.delete("/{state_id}", summary="Delete state")
 async def delete_state(
     state_id: int,
-    db: Session = Depends(get_db)
+    db: Session = Depends(get_db),
 ):
     """
     Delete a state.
@@ -108,10 +112,11 @@ async def delete_state(
     return {"message": f"State {state_id} deleted successfully"}
 
 
-@router.post("/initialize",
-             response_model=List[StateResponse],
-             summary="Initialize default states"
-             )
+@router.post(
+    "/initialize",
+    response_model=list[StateResponse],
+    summary="Initialize default states",
+)
 async def initialize_default_states(db: Session = Depends(get_db)):
     """
     Initialize default states (New, In Progress, Done) if they don't exist.
diff --git a/backend/app/services/state_service.py b/backend/app/services/state_service.py
index f363cf1..918e931 100644
--- a/backend/app/services/state_service.py
+++ b/backend/app/services/state_service.py
@@ -65,10 +65,11 @@ def create_state(db: Session, state: StateCreate) -> State:
             )
 
     @staticmethod
-    def update_state(db: Session,
-                     state_id: int,
-                     state_update: StateUpdate
-                     ) -> State:
+    def update_state(
+        db: Session,
+        state_id: int,
+        state_update: StateUpdate,
+    ) -> State:
         """Update an existing state"""
         db_state = StateService.get_state_by_id(db, state_id)
         if not db_state:
@@ -117,7 +118,7 @@ def delete_state(db: Session, state_id: int) -> bool:
             )
 
     @staticmethod
-    def initialize_default_states(db: Session) -> List[State]:
+    def initialize_default_states(db: Session) -> list[State]:
         """Initialize default states if they don't exist"""
         default_states = [
             {"name": "New",

From e2040564c6240c93e72a04d5fa336b46591a231f Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 00:29:19 +0000
Subject: [PATCH 14/36] Fix task ID type handling in workflow task completion

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/api/v1/endpoints/workflows.py | 11 +++++++++--
 backend/app/services/workflow_service.py  | 11 ++++++++---
 2 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/backend/app/api/v1/endpoints/workflows.py b/backend/app/api/v1/endpoints/workflows.py
index 3e97c1d..4df875b 100644
--- a/backend/app/api/v1/endpoints/workflows.py
+++ b/backend/app/api/v1/endpoints/workflows.py
@@ -39,8 +39,15 @@ async def list_workflows():
     return WorkflowService.list_workflows()
 
 
-@router.post("/{instance_id}/tasks/{task_id}/complete", summary="Complete a user task")
-async def complete_task(instance_id: str, task_id: int, payload: CompleteTaskRequest):
+@router.post(
+    "/{instance_id}/tasks/{task_id}/complete",
+    summary="Complete a user task",
+)
+async def complete_task(
+    instance_id: str,
+    task_id: str,
+    payload: CompleteTaskRequest,
+):
     try:
         return WorkflowService.complete_user_task(
             instance_id,
diff --git a/backend/app/services/workflow_service.py b/backend/app/services/workflow_service.py
index 8016c89..b87b498 100644
--- a/backend/app/services/workflow_service.py
+++ b/backend/app/services/workflow_service.py
@@ -112,11 +112,16 @@ def is_user_task(t: Task) -> bool:
         return [t for t in tasks if is_user_task(t)]
 
     @staticmethod
-    def complete_user_task(instance_id: str, task_id: int, data: dict) -> dict:
+    def complete_user_task(instance_id: str, task_id: str, data: dict) -> dict:
         instance = WorkflowService.get_instance(instance_id)
         workflow = instance.workflow
+        # Task IDs in SpiffWorkflow are integers; convert if necessary
+        try:
+            numeric_task_id = int(task_id)
+        except (TypeError, ValueError):
+            raise KeyError("Task not found")
         task: Optional[Task] = next(
-            (t for t in workflow.get_tasks() if t.id == task_id),
+            (t for t in workflow.get_tasks() if t.id == numeric_task_id),
             None,
         )
         if task is None:
@@ -124,7 +129,7 @@ def complete_user_task(instance_id: str, task_id: int, data: dict) -> dict:
         if task.state != TaskState.READY:
             raise ValueError("Task is not ready")
         task.data.update(data or {})
-        workflow.complete_task_from_id(task_id)
+        workflow.complete_task_from_id(numeric_task_id)
         workflow.do_engine_steps()
         return instance.to_dict()
 

From d855f83a8fd437f56ea24405778e117d1da566f0 Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 00:31:17 +0000
Subject: [PATCH 15/36] Improve task ID validation with more descriptive error
 message

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/services/workflow_service.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/backend/app/services/workflow_service.py b/backend/app/services/workflow_service.py
index b87b498..a54bd5a 100644
--- a/backend/app/services/workflow_service.py
+++ b/backend/app/services/workflow_service.py
@@ -119,7 +119,9 @@ def complete_user_task(instance_id: str, task_id: str, data: dict) -> dict:
         try:
             numeric_task_id = int(task_id)
         except (TypeError, ValueError):
-            raise KeyError("Task not found")
+            raise ValueError(
+                "task_id must be the integer id from ready_user_tasks.id"
+            )
         task: Optional[Task] = next(
             (t for t in workflow.get_tasks() if t.id == numeric_task_id),
             None,

From be72c0ec272fc36ce3cec9709243fbcb75ab7e5d Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 00:32:51 +0000
Subject: [PATCH 16/36] Update type hints for optional types in workflow
 service

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/services/workflow_service.py | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/backend/app/services/workflow_service.py b/backend/app/services/workflow_service.py
index a54bd5a..b6b78fb 100644
--- a/backend/app/services/workflow_service.py
+++ b/backend/app/services/workflow_service.py
@@ -1,7 +1,6 @@
 import threading
 import uuid
 from pathlib import Path
-from typing import Optional
 
 from SpiffWorkflow.bpmn.parser import BpmnParser
 from SpiffWorkflow.bpmn.workflow import BpmnWorkflow
@@ -42,7 +41,7 @@ def _status(self) -> str:
 class WorkflowService:
     _lock = threading.Lock()
     _instances: dict[str, WorkflowInstance] = {}
-    _parser: Optional[BpmnParser] = None
+    _parser: BpmnParser | None = None
     _spec_cache: dict[str, object] = {}
 
     @staticmethod
@@ -122,7 +121,7 @@ def complete_user_task(instance_id: str, task_id: str, data: dict) -> dict:
             raise ValueError(
                 "task_id must be the integer id from ready_user_tasks.id"
             )
-        task: Optional[Task] = next(
+        task: Task | None = next(
             (t for t in workflow.get_tasks() if t.id == numeric_task_id),
             None,
         )

From 0281ca172a0c32477beabaf30b5c469a934bdfda Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 00:40:23 +0000
Subject: [PATCH 17/36] Fix task ID handling in complete_user_task to support
 string and int IDs

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/services/workflow_service.py | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/backend/app/services/workflow_service.py b/backend/app/services/workflow_service.py
index b6b78fb..c6fbef6 100644
--- a/backend/app/services/workflow_service.py
+++ b/backend/app/services/workflow_service.py
@@ -114,15 +114,9 @@ def is_user_task(t: Task) -> bool:
     def complete_user_task(instance_id: str, task_id: str, data: dict) -> dict:
         instance = WorkflowService.get_instance(instance_id)
         workflow = instance.workflow
-        # Task IDs in SpiffWorkflow are integers; convert if necessary
-        try:
-            numeric_task_id = int(task_id)
-        except (TypeError, ValueError):
-            raise ValueError(
-                "task_id must be the integer id from ready_user_tasks.id"
-            )
+        # Locate task by matching id as string (handles int or UUID ids)
         task: Task | None = next(
-            (t for t in workflow.get_tasks() if t.id == numeric_task_id),
+            (t for t in workflow.get_tasks() if str(t.id) == str(task_id)),
             None,
         )
         if task is None:
@@ -130,7 +124,7 @@ def complete_user_task(instance_id: str, task_id: str, data: dict) -> dict:
         if task.state != TaskState.READY:
             raise ValueError("Task is not ready")
         task.data.update(data or {})
-        workflow.complete_task_from_id(numeric_task_id)
+        workflow.complete_task_from_id(task.id)
         workflow.do_engine_steps()
         return instance.to_dict()
 

From baa62df0130a97ad1ca41a6d826bbc403f8188e3 Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 00:44:44 +0000
Subject: [PATCH 18/36] Update workflow task completion method to pass task
 object directly

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/services/workflow_service.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/backend/app/services/workflow_service.py b/backend/app/services/workflow_service.py
index c6fbef6..f3fa702 100644
--- a/backend/app/services/workflow_service.py
+++ b/backend/app/services/workflow_service.py
@@ -124,7 +124,7 @@ def complete_user_task(instance_id: str, task_id: str, data: dict) -> dict:
         if task.state != TaskState.READY:
             raise ValueError("Task is not ready")
         task.data.update(data or {})
-        workflow.complete_task_from_id(task.id)
+        workflow.complete_task(task)
         workflow.do_engine_steps()
         return instance.to_dict()
 

From 9c9325c8c7ee0d04443afe0f9e61c1fa4f3dd9aa Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 00:47:09 +0000
Subject: [PATCH 19/36] Improve task completion logic with direct lookup and
 simplified completion

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/services/workflow_service.py | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/backend/app/services/workflow_service.py b/backend/app/services/workflow_service.py
index f3fa702..1f9d3e6 100644
--- a/backend/app/services/workflow_service.py
+++ b/backend/app/services/workflow_service.py
@@ -114,17 +114,21 @@ def is_user_task(t: Task) -> bool:
     def complete_user_task(instance_id: str, task_id: str, data: dict) -> dict:
         instance = WorkflowService.get_instance(instance_id)
         workflow = instance.workflow
-        # Locate task by matching id as string (handles int or UUID ids)
-        task: Task | None = next(
-            (t for t in workflow.get_tasks() if str(t.id) == str(task_id)),
-            None,
-        )
+        # Locate task: prefer direct lookup by id, fallback to string match
+        task: Task | None = None
+        try:
+            task = workflow.get_task_from_id(int(task_id))
+        except Exception:
+            task = next(
+                (t for t in workflow.get_tasks() if str(t.id) == str(task_id)),
+                None,
+            )
         if task is None:
             raise KeyError("Task not found")
         if task.state != TaskState.READY:
             raise ValueError("Task is not ready")
         task.data.update(data or {})
-        workflow.complete_task(task)
+        task.complete()
         workflow.do_engine_steps()
         return instance.to_dict()
 

From 4298b73b7a744c11c516f9743514bbcf66853b5d Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 00:48:50 +0000
Subject: [PATCH 20/36] Update simple approval workflow with default rejection
 path and condition fix

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/workflows/simple_approval.bpmn | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/backend/app/workflows/simple_approval.bpmn b/backend/app/workflows/simple_approval.bpmn
index 8396447..d0d2472 100644
--- a/backend/app/workflows/simple_approval.bpmn
+++ b/backend/app/workflows/simple_approval.bpmn
@@ -9,18 +9,16 @@
   <process id="SimpleApproval" name="Simple Approval" isExecutable="true">
     <startEvent id="start" name="Start" />
     <userTask id="approval_task" name="Approve Request" />
-    <exclusiveGateway id="gateway" name="Approved?" />
+    <exclusiveGateway id="gateway" name="Approved?" default="flow_gateway_to_rejected" />
     <endEvent id="approved_end" name="Approved" />
     <endEvent id="rejected_end" name="Rejected" />
 
     <sequenceFlow id="flow_start_to_task" sourceRef="start" targetRef="approval_task" />
     <sequenceFlow id="flow_task_to_gateway" sourceRef="approval_task" targetRef="gateway" />
     <sequenceFlow id="flow_gateway_to_approved" sourceRef="gateway" targetRef="approved_end">
-      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${approved == true}]]></conditionExpression>
-    </sequenceFlow>
-    <sequenceFlow id="flow_gateway_to_rejected" sourceRef="gateway" targetRef="rejected_end">
-      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${approved != true}]]></conditionExpression>
+      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${approved == True}]]></conditionExpression>
     </sequenceFlow>
+    <sequenceFlow id="flow_gateway_to_rejected" sourceRef="gateway" targetRef="rejected_end" />
   </process>
 </definitions>
 

From 26884cf277f53265929a69d8d68a162447637958 Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 00:51:20 +0000
Subject: [PATCH 21/36] Update workflow data and simplify gateway condition
 expression

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/services/workflow_service.py   | 2 ++
 backend/app/workflows/simple_approval.bpmn | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/backend/app/services/workflow_service.py b/backend/app/services/workflow_service.py
index 1f9d3e6..ee86b93 100644
--- a/backend/app/services/workflow_service.py
+++ b/backend/app/services/workflow_service.py
@@ -128,6 +128,8 @@ def complete_user_task(instance_id: str, task_id: str, data: dict) -> dict:
         if task.state != TaskState.READY:
             raise ValueError("Task is not ready")
         task.data.update(data or {})
+        # Ensure gateway conditions can see the variables
+        workflow.data.update(data or {})
         task.complete()
         workflow.do_engine_steps()
         return instance.to_dict()
diff --git a/backend/app/workflows/simple_approval.bpmn b/backend/app/workflows/simple_approval.bpmn
index d0d2472..1108b05 100644
--- a/backend/app/workflows/simple_approval.bpmn
+++ b/backend/app/workflows/simple_approval.bpmn
@@ -16,7 +16,7 @@
     <sequenceFlow id="flow_start_to_task" sourceRef="start" targetRef="approval_task" />
     <sequenceFlow id="flow_task_to_gateway" sourceRef="approval_task" targetRef="gateway" />
     <sequenceFlow id="flow_gateway_to_approved" sourceRef="gateway" targetRef="approved_end">
-      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${approved == True}]]></conditionExpression>
+      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${approved}]]></conditionExpression>
     </sequenceFlow>
     <sequenceFlow id="flow_gateway_to_rejected" sourceRef="gateway" targetRef="rejected_end" />
   </process>

From 618895505ac91878e6c567707d0eff8ba99dcce6 Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 00:51:54 +0000
Subject: [PATCH 22/36] Improve task readiness check with dynamic state
 transition attempt

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/services/workflow_service.py | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/backend/app/services/workflow_service.py b/backend/app/services/workflow_service.py
index ee86b93..989dd55 100644
--- a/backend/app/services/workflow_service.py
+++ b/backend/app/services/workflow_service.py
@@ -126,7 +126,21 @@ def complete_user_task(instance_id: str, task_id: str, data: dict) -> dict:
         if task is None:
             raise KeyError("Task not found")
         if task.state != TaskState.READY:
-            raise ValueError("Task is not ready")
+            # Attempt to move the task to READY state, then re-check
+            try:
+                workflow.run_task_from_id(task.id)
+                # Some engines require refreshing waiting tasks
+                if hasattr(workflow, "refresh_waiting_tasks"):
+                    workflow.refresh_waiting_tasks()
+            except Exception:
+                pass
+            # Re-fetch task and verify state
+            try:
+                task = workflow.get_task_from_id(task.id)
+            except Exception:
+                pass
+            if task.state != TaskState.READY:
+                raise ValueError("Task is not ready")
         task.data.update(data or {})
         # Ensure gateway conditions can see the variables
         workflow.data.update(data or {})

From b24b49708f1d78a06c78a09aeee94f3133868d4a Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 00:54:28 +0000
Subject: [PATCH 23/36] Update workflow condition to use data.get() for safer
 approval check

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/workflows/simple_approval.bpmn | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/backend/app/workflows/simple_approval.bpmn b/backend/app/workflows/simple_approval.bpmn
index 1108b05..04816e2 100644
--- a/backend/app/workflows/simple_approval.bpmn
+++ b/backend/app/workflows/simple_approval.bpmn
@@ -16,7 +16,7 @@
     <sequenceFlow id="flow_start_to_task" sourceRef="start" targetRef="approval_task" />
     <sequenceFlow id="flow_task_to_gateway" sourceRef="approval_task" targetRef="gateway" />
     <sequenceFlow id="flow_gateway_to_approved" sourceRef="gateway" targetRef="approved_end">
-      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${approved}]]></conditionExpression>
+      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${data.get('approved', False)}]]></conditionExpression>
     </sequenceFlow>
     <sequenceFlow id="flow_gateway_to_rejected" sourceRef="gateway" targetRef="rejected_end" />
   </process>

From 3b270fb275c44071f036d8ff6c2bf886c7982d0b Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 00:56:19 +0000
Subject: [PATCH 24/36] Checkpoint before follow-up message

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/services/workflow_service.py | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/backend/app/services/workflow_service.py b/backend/app/services/workflow_service.py
index 989dd55..fdc650b 100644
--- a/backend/app/services/workflow_service.py
+++ b/backend/app/services/workflow_service.py
@@ -5,6 +5,7 @@
 from SpiffWorkflow.bpmn.parser import BpmnParser
 from SpiffWorkflow.bpmn.workflow import BpmnWorkflow
 from SpiffWorkflow.task import Task, TaskState
+from SpiffWorkflow.bpmn.specs.UserTask import UserTask
 
 
 class WorkflowInstance:
@@ -58,8 +59,6 @@ def _get_bpmn_path(filename: str) -> Path:
     @staticmethod
     def load_spec(bpmn_filename: str, process_id: str):
         cache_key = f"{bpmn_filename}::{process_id}"
-        if cache_key in WorkflowService._spec_cache:
-            return WorkflowService._spec_cache[cache_key]
         parser = WorkflowService._get_parser()
         path = WorkflowService._get_bpmn_path(bpmn_filename)
         # SpiffWorkflow 3.x: register BPMN file, then get spec by process id
@@ -102,13 +101,7 @@ def get_instance(instance_id: str) -> WorkflowInstance:
     @staticmethod
     def get_ready_user_tasks(workflow: BpmnWorkflow) -> list[Task]:
         tasks: list[Task] = workflow.get_tasks(state=TaskState.READY)
-        def is_user_task(t: Task) -> bool:
-            name = getattr(t.task_spec, "bpmn_name", "")
-            if isinstance(name, str) and name.lower() == "usertask":
-                return True
-            # Fallback to class name heuristic
-            return "user" in t.task_spec.__class__.__name__.lower()
-        return [t for t in tasks if is_user_task(t)]
+        return [t for t in tasks if isinstance(t.task_spec, UserTask)]
 
     @staticmethod
     def complete_user_task(instance_id: str, task_id: str, data: dict) -> dict:

From 81b0523169f8e02917b0770656257362e98b6545 Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 00:57:07 +0000
Subject: [PATCH 25/36] Fix workflow condition expression to use task.data
 instead of data

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/workflows/simple_approval.bpmn | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/backend/app/workflows/simple_approval.bpmn b/backend/app/workflows/simple_approval.bpmn
index 04816e2..ec9265d 100644
--- a/backend/app/workflows/simple_approval.bpmn
+++ b/backend/app/workflows/simple_approval.bpmn
@@ -16,7 +16,7 @@
     <sequenceFlow id="flow_start_to_task" sourceRef="start" targetRef="approval_task" />
     <sequenceFlow id="flow_task_to_gateway" sourceRef="approval_task" targetRef="gateway" />
     <sequenceFlow id="flow_gateway_to_approved" sourceRef="gateway" targetRef="approved_end">
-      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${data.get('approved', False)}]]></conditionExpression>
+      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${task.data.get('approved', False)}]]></conditionExpression>
     </sequenceFlow>
     <sequenceFlow id="flow_gateway_to_rejected" sourceRef="gateway" targetRef="rejected_end" />
   </process>

From 871b9b3d7d76cd475c55acb7d15fa8249219576c Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 00:58:43 +0000
Subject: [PATCH 26/36] Improve user task detection in workflow service without
 direct UserTask import

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/services/workflow_service.py | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/backend/app/services/workflow_service.py b/backend/app/services/workflow_service.py
index fdc650b..1a763ed 100644
--- a/backend/app/services/workflow_service.py
+++ b/backend/app/services/workflow_service.py
@@ -5,7 +5,6 @@
 from SpiffWorkflow.bpmn.parser import BpmnParser
 from SpiffWorkflow.bpmn.workflow import BpmnWorkflow
 from SpiffWorkflow.task import Task, TaskState
-from SpiffWorkflow.bpmn.specs.UserTask import UserTask
 
 
 class WorkflowInstance:
@@ -101,7 +100,13 @@ def get_instance(instance_id: str) -> WorkflowInstance:
     @staticmethod
     def get_ready_user_tasks(workflow: BpmnWorkflow) -> list[Task]:
         tasks: list[Task] = workflow.get_tasks(state=TaskState.READY)
-        return [t for t in tasks if isinstance(t.task_spec, UserTask)]
+        # Identify BPMN User Tasks by bpmn_name or class name heuristic
+        def is_user_task(t: Task) -> bool:
+            name = getattr(t.task_spec, "bpmn_name", "")
+            if isinstance(name, str) and name.lower() == "usertask":
+                return True
+            return "usertask" in t.task_spec.__class__.__name__.lower()
+        return [t for t in tasks if is_user_task(t)]
 
     @staticmethod
     def complete_user_task(instance_id: str, task_id: str, data: dict) -> dict:

From 25efd7c833c6da9f9cc66a0a8fe272117201464f Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 01:00:23 +0000
Subject: [PATCH 27/36] Optimize workflow spec loading with caching and
 improved error handling

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/services/workflow_service.py | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/backend/app/services/workflow_service.py b/backend/app/services/workflow_service.py
index 1a763ed..532fbb0 100644
--- a/backend/app/services/workflow_service.py
+++ b/backend/app/services/workflow_service.py
@@ -58,11 +58,18 @@ def _get_bpmn_path(filename: str) -> Path:
     @staticmethod
     def load_spec(bpmn_filename: str, process_id: str):
         cache_key = f"{bpmn_filename}::{process_id}"
+        # Return from cache if present
+        if cache_key in WorkflowService._spec_cache:
+            return WorkflowService._spec_cache[cache_key]
         parser = WorkflowService._get_parser()
         path = WorkflowService._get_bpmn_path(bpmn_filename)
-        # SpiffWorkflow 3.x: register BPMN file, then get spec by process id
-        parser.add_bpmn_file(str(path))
-        spec = parser.get_spec(process_id)
+        # First try to fetch an existing spec in the parser
+        try:
+            spec = parser.get_spec(process_id)
+        except Exception:
+            # Not loaded yet: register BPMN file, then get spec by process id
+            parser.add_bpmn_file(str(path))
+            spec = parser.get_spec(process_id)
         WorkflowService._spec_cache[cache_key] = spec
         return spec
 

From 9d4d65feac35f9a72059b2a4e202da67d2de5033 Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 01:01:45 +0000
Subject: [PATCH 28/36] Improve task retrieval by including waiting tasks in
 workflow service

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/services/workflow_service.py | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/backend/app/services/workflow_service.py b/backend/app/services/workflow_service.py
index 532fbb0..33cd241 100644
--- a/backend/app/services/workflow_service.py
+++ b/backend/app/services/workflow_service.py
@@ -106,7 +106,17 @@ def get_instance(instance_id: str) -> WorkflowInstance:
 
     @staticmethod
     def get_ready_user_tasks(workflow: BpmnWorkflow) -> list[Task]:
-        tasks: list[Task] = workflow.get_tasks(state=TaskState.READY)
+        # Ensure waiting tasks are refreshed before we query states
+        if hasattr(workflow, "refresh_waiting_tasks"):
+            workflow.refresh_waiting_tasks()
+        if hasattr(workflow, "update_waiting_tasks"):
+            workflow.update_waiting_tasks()
+        # Include tasks that are waiting or ready for user action
+        tasks_ready: list[Task] = workflow.get_tasks(state=TaskState.READY)
+        tasks_waiting: list[Task] = workflow.get_tasks(state=TaskState.WAITING)
+        tasks: list[Task] = tasks_ready + [
+            t for t in tasks_waiting if t not in tasks_ready
+        ]
         # Identify BPMN User Tasks by bpmn_name or class name heuristic
         def is_user_task(t: Task) -> bool:
             name = getattr(t.task_spec, "bpmn_name", "")

From 16c9ce21bed827f43d4821b29d432c0fd49e48fb Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 01:03:53 +0000
Subject: [PATCH 29/36] Normalize approved flag to string for BPMN gateway
 condition

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/services/workflow_service.py   | 8 ++++++--
 backend/app/workflows/simple_approval.bpmn | 2 +-
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/backend/app/services/workflow_service.py b/backend/app/services/workflow_service.py
index 33cd241..92125ce 100644
--- a/backend/app/services/workflow_service.py
+++ b/backend/app/services/workflow_service.py
@@ -156,9 +156,13 @@ def complete_user_task(instance_id: str, task_id: str, data: dict) -> dict:
                 pass
             if task.state != TaskState.READY:
                 raise ValueError("Task is not ready")
-        task.data.update(data or {})
+        # Normalize approved flag to a string ('true'/'false') for expression
+        normalized: dict = dict(data or {})
+        if "approved" in normalized:
+            normalized["approved"] = "true" if bool(normalized["approved"]) else "false"
+        task.data.update(normalized)
         # Ensure gateway conditions can see the variables
-        workflow.data.update(data or {})
+        workflow.data.update(normalized)
         task.complete()
         workflow.do_engine_steps()
         return instance.to_dict()
diff --git a/backend/app/workflows/simple_approval.bpmn b/backend/app/workflows/simple_approval.bpmn
index ec9265d..279e5ba 100644
--- a/backend/app/workflows/simple_approval.bpmn
+++ b/backend/app/workflows/simple_approval.bpmn
@@ -16,7 +16,7 @@
     <sequenceFlow id="flow_start_to_task" sourceRef="start" targetRef="approval_task" />
     <sequenceFlow id="flow_task_to_gateway" sourceRef="approval_task" targetRef="gateway" />
     <sequenceFlow id="flow_gateway_to_approved" sourceRef="gateway" targetRef="approved_end">
-      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${task.data.get('approved', False)}]]></conditionExpression>
+      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${approved == 'true'}]]></conditionExpression>
     </sequenceFlow>
     <sequenceFlow id="flow_gateway_to_rejected" sourceRef="gateway" targetRef="rejected_end" />
   </process>

From 4722e9b2c5d28eddb7d13ca7947d14814dc27cbe Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 01:07:29 +0000
Subject: [PATCH 30/36] Refactor workflow service to simplify spec loading and
 handle boolean approval

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/services/workflow_service.py   | 28 +++++++---------------
 backend/app/workflows/simple_approval.bpmn |  2 +-
 2 files changed, 9 insertions(+), 21 deletions(-)

diff --git a/backend/app/services/workflow_service.py b/backend/app/services/workflow_service.py
index 92125ce..d2ba52c 100644
--- a/backend/app/services/workflow_service.py
+++ b/backend/app/services/workflow_service.py
@@ -41,14 +41,11 @@ def _status(self) -> str:
 class WorkflowService:
     _lock = threading.Lock()
     _instances: dict[str, WorkflowInstance] = {}
-    _parser: BpmnParser | None = None
-    _spec_cache: dict[str, object] = {}
 
     @staticmethod
     def _get_parser() -> BpmnParser:
-        if WorkflowService._parser is None:
-            WorkflowService._parser = BpmnParser()
-        return WorkflowService._parser
+        # Always use a fresh parser so BPMN edits are picked up in dev
+        return BpmnParser()
 
     @staticmethod
     def _get_bpmn_path(filename: str) -> Path:
@@ -57,21 +54,10 @@ def _get_bpmn_path(filename: str) -> Path:
 
     @staticmethod
     def load_spec(bpmn_filename: str, process_id: str):
-        cache_key = f"{bpmn_filename}::{process_id}"
-        # Return from cache if present
-        if cache_key in WorkflowService._spec_cache:
-            return WorkflowService._spec_cache[cache_key]
         parser = WorkflowService._get_parser()
         path = WorkflowService._get_bpmn_path(bpmn_filename)
-        # First try to fetch an existing spec in the parser
-        try:
-            spec = parser.get_spec(process_id)
-        except Exception:
-            # Not loaded yet: register BPMN file, then get spec by process id
-            parser.add_bpmn_file(str(path))
-            spec = parser.get_spec(process_id)
-        WorkflowService._spec_cache[cache_key] = spec
-        return spec
+        parser.add_bpmn_file(str(path))
+        return parser.get_spec(process_id)
 
     @staticmethod
     def start_workflow(
@@ -81,6 +67,8 @@ def start_workflow(
     ) -> dict:
         spec = WorkflowService.load_spec(bpmn_filename, process_id)
         workflow = BpmnWorkflow(spec)
+        # Initialize defaults so expressions have values
+        workflow.data["approved"] = False
         workflow.do_engine_steps()
         instance_id = str(uuid.uuid4())
         instance = WorkflowInstance(instance_id, name, workflow)
@@ -156,10 +144,10 @@ def complete_user_task(instance_id: str, task_id: str, data: dict) -> dict:
                 pass
             if task.state != TaskState.READY:
                 raise ValueError("Task is not ready")
-        # Normalize approved flag to a string ('true'/'false') for expression
+        # Normalize approved flag to boolean for expression
         normalized: dict = dict(data or {})
         if "approved" in normalized:
-            normalized["approved"] = "true" if bool(normalized["approved"]) else "false"
+            normalized["approved"] = bool(normalized["approved"])
         task.data.update(normalized)
         # Ensure gateway conditions can see the variables
         workflow.data.update(normalized)
diff --git a/backend/app/workflows/simple_approval.bpmn b/backend/app/workflows/simple_approval.bpmn
index 279e5ba..d0d2472 100644
--- a/backend/app/workflows/simple_approval.bpmn
+++ b/backend/app/workflows/simple_approval.bpmn
@@ -16,7 +16,7 @@
     <sequenceFlow id="flow_start_to_task" sourceRef="start" targetRef="approval_task" />
     <sequenceFlow id="flow_task_to_gateway" sourceRef="approval_task" targetRef="gateway" />
     <sequenceFlow id="flow_gateway_to_approved" sourceRef="gateway" targetRef="approved_end">
-      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${approved == 'true'}]]></conditionExpression>
+      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${approved == True}]]></conditionExpression>
     </sequenceFlow>
     <sequenceFlow id="flow_gateway_to_rejected" sourceRef="gateway" targetRef="rejected_end" />
   </process>

From 12d2efb50f05aa7d60387065024d346e5268a853 Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 01:11:37 +0000
Subject: [PATCH 31/36] Fix workflow condition expression for approval gateway

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/workflows/simple_approval.bpmn | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/backend/app/workflows/simple_approval.bpmn b/backend/app/workflows/simple_approval.bpmn
index d0d2472..1108b05 100644
--- a/backend/app/workflows/simple_approval.bpmn
+++ b/backend/app/workflows/simple_approval.bpmn
@@ -16,7 +16,7 @@
     <sequenceFlow id="flow_start_to_task" sourceRef="start" targetRef="approval_task" />
     <sequenceFlow id="flow_task_to_gateway" sourceRef="approval_task" targetRef="gateway" />
     <sequenceFlow id="flow_gateway_to_approved" sourceRef="gateway" targetRef="approved_end">
-      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${approved == True}]]></conditionExpression>
+      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${approved}]]></conditionExpression>
     </sequenceFlow>
     <sequenceFlow id="flow_gateway_to_rejected" sourceRef="gateway" targetRef="rejected_end" />
   </process>

From 0e3bf769a5d11b14e72fbff0f934d5bdfab7a386 Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Thu, 28 Aug 2025 01:16:25 +0000
Subject: [PATCH 32/36] Update BPMN workflow with BPMN2 namespace and improved
 flow definitions

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/workflows/simple_approval.bpmn | 91 +++++++++++++++++-----
 1 file changed, 70 insertions(+), 21 deletions(-)

diff --git a/backend/app/workflows/simple_approval.bpmn b/backend/app/workflows/simple_approval.bpmn
index 1108b05..ebae62a 100644
--- a/backend/app/workflows/simple_approval.bpmn
+++ b/backend/app/workflows/simple_approval.bpmn
@@ -1,24 +1,73 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<definitions xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL"
-             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-             xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI"
-             xmlns:omgdc="http://www.omg.org/spec/DD/20100524/DC"
-             xmlns:omgdi="http://www.omg.org/spec/DD/20100524/DI"
-             id="Defs"
-             targetNamespace="http://example.com/bpmn/simple_approval">
-  <process id="SimpleApproval" name="Simple Approval" isExecutable="true">
-    <startEvent id="start" name="Start" />
-    <userTask id="approval_task" name="Approve Request" />
-    <exclusiveGateway id="gateway" name="Approved?" default="flow_gateway_to_rejected" />
-    <endEvent id="approved_end" name="Approved" />
-    <endEvent id="rejected_end" name="Rejected" />
+<bpmn2:definitions xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+                   xmlns:bpmn2="http://www.omg.org/spec/BPMN/20100524/MODEL"
+                   xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI"
+                   xmlns:dc="http://www.omg.org/spec/DD/20100524/DC"
+                   xmlns:di="http://www.omg.org/spec/DD/20100524/DI"
+                   id="Defs"
+                   targetNamespace="http://example.com/bpmn/simple_approval">
+  <bpmn2:process id="SimpleApproval" name="Simple Approval" isExecutable="true">
+    <bpmn2:startEvent id="StartEvent_1" name="Start">
+      <bpmn2:outgoing>Flow_Start_Task</bpmn2:outgoing>
+    </bpmn2:startEvent>
+    <bpmn2:userTask id="UserTask_Approve" name="Approve Request">
+      <bpmn2:incoming>Flow_Start_Task</bpmn2:incoming>
+      <bpmn2:outgoing>Flow_Task_GW</bpmn2:outgoing>
+    </bpmn2:userTask>
+    <bpmn2:exclusiveGateway id="Gateway_Approved" name="Approved?" default="Flow_GW_Rejected">
+      <bpmn2:incoming>Flow_Task_GW</bpmn2:incoming>
+      <bpmn2:outgoing>Flow_GW_Approved</bpmn2:outgoing>
+      <bpmn2:outgoing>Flow_GW_Rejected</bpmn2:outgoing>
+    </bpmn2:exclusiveGateway>
+    <bpmn2:endEvent id="EndEvent_Approved" name="Approved">
+      <bpmn2:incoming>Flow_GW_Approved</bpmn2:incoming>
+    </bpmn2:endEvent>
+    <bpmn2:endEvent id="EndEvent_Rejected" name="Rejected">
+      <bpmn2:incoming>Flow_GW_Rejected</bpmn2:incoming>
+    </bpmn2:endEvent>
 
-    <sequenceFlow id="flow_start_to_task" sourceRef="start" targetRef="approval_task" />
-    <sequenceFlow id="flow_task_to_gateway" sourceRef="approval_task" targetRef="gateway" />
-    <sequenceFlow id="flow_gateway_to_approved" sourceRef="gateway" targetRef="approved_end">
-      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${approved}]]></conditionExpression>
-    </sequenceFlow>
-    <sequenceFlow id="flow_gateway_to_rejected" sourceRef="gateway" targetRef="rejected_end" />
-  </process>
-</definitions>
+    <bpmn2:sequenceFlow id="Flow_Start_Task" sourceRef="StartEvent_1" targetRef="UserTask_Approve"/>
+    <bpmn2:sequenceFlow id="Flow_Task_GW" sourceRef="UserTask_Approve" targetRef="Gateway_Approved"/>
+    <bpmn2:sequenceFlow id="Flow_GW_Approved" sourceRef="Gateway_Approved" targetRef="EndEvent_Approved">
+      <bpmn2:conditionExpression xsi:type="bpmn2:tFormalExpression"><![CDATA[approved]]></bpmn2:conditionExpression>
+    </bpmn2:sequenceFlow>
+    <bpmn2:sequenceFlow id="Flow_GW_Rejected" sourceRef="Gateway_Approved" targetRef="EndEvent_Rejected"/>
+  </bpmn2:process>
+
+  <bpmndi:BPMNDiagram id="BPMNDiagram_1">
+    <bpmndi:BPMNPlane id="BPMNPlane_1" bpmnElement="SimpleApproval">
+      <bpmndi:BPMNShape id="Shape_StartEvent_1" bpmnElement="StartEvent_1">
+        <dc:Bounds x="150" y="100" width="36" height="36"/>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Shape_UserTask_Approve" bpmnElement="UserTask_Approve">
+        <dc:Bounds x="240" y="80" width="120" height="80"/>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Shape_Gateway_Approved" bpmnElement="Gateway_Approved" isMarkerVisible="true">
+        <dc:Bounds x="400" y="95" width="50" height="50"/>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Shape_EndEvent_Approved" bpmnElement="EndEvent_Approved">
+        <dc:Bounds x="520" y="60" width="36" height="36"/>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Shape_EndEvent_Rejected" bpmnElement="EndEvent_Rejected">
+        <dc:Bounds x="520" y="140" width="36" height="36"/>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNEdge id="Edge_Flow_Start_Task" bpmnElement="Flow_Start_Task">
+        <di:waypoint x="186" y="118"/>
+        <di:waypoint x="240" y="118"/>
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="Edge_Flow_Task_GW" bpmnElement="Flow_Task_GW">
+        <di:waypoint x="360" y="118"/>
+        <di:waypoint x="400" y="120"/>
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="Edge_Flow_GW_Approved" bpmnElement="Flow_GW_Approved">
+        <di:waypoint x="450" y="120"/>
+        <di:waypoint x="520" y="78"/>
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="Edge_Flow_GW_Rejected" bpmnElement="Flow_GW_Rejected">
+        <di:waypoint x="450" y="120"/>
+        <di:waypoint x="520" y="158"/>
+      </bpmndi:BPMNEdge>
+    </bpmndi:BPMNPlane>
+  </bpmndi:BPMNDiagram>
+</bpmn2:definitions>
 

From 95075a1e432e69117ae795011af529e810e3b6be Mon Sep 17 00:00:00 2001
From: Ann Jacob <ann.jacob@aot-technologies.com>
Date: Thu, 28 Aug 2025 15:35:21 -0400
Subject: [PATCH 33/36] lint fix

---
 backend/app/api/v1/api.py                 | 3 ++-
 backend/app/api/v1/endpoints/workflows.py | 1 -
 backend/app/schemas/state.py              | 6 +++---
 backend/app/services/workflow_service.py  | 2 +-
 frontend/src/constants/index.ts           | 1 -
 frontend/src/services/http.ts             | 6 ++++--
 frontend/src/services/workflows.ts        | 1 -
 frontend/src/types/workflow.ts            | 1 -
 frontend/tests/HelloWorld.spec.ts         | 1 +
 9 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/backend/app/api/v1/api.py b/backend/app/api/v1/api.py
index 7023ed1..3c8ab17 100644
--- a/backend/app/api/v1/api.py
+++ b/backend/app/api/v1/api.py
@@ -5,4 +5,5 @@
 
 # Include all endpoint routers
 api_router.include_router(states.router, prefix="/states", tags=["states"])
-api_router.include_router(workflows.router, prefix="/workflows", tags=["workflows"])
+api_router.include_router(
+    workflows.router, prefix="/workflows", tags=["workflows"])
diff --git a/backend/app/api/v1/endpoints/workflows.py b/backend/app/api/v1/endpoints/workflows.py
index 4df875b..68e314b 100644
--- a/backend/app/api/v1/endpoints/workflows.py
+++ b/backend/app/api/v1/endpoints/workflows.py
@@ -60,4 +60,3 @@ async def complete_task(
         raise HTTPException(status_code=400, detail=str(exc))
     except Exception as exc:
         raise HTTPException(status_code=500, detail=str(exc))
-
diff --git a/backend/app/schemas/state.py b/backend/app/schemas/state.py
index e5258a4..c3a1ded 100644
--- a/backend/app/schemas/state.py
+++ b/backend/app/schemas/state.py
@@ -13,9 +13,9 @@ class StateBase(CustomBaseModel):
                       description="State name"
                       )
     description: str | None = Field(None,
-                                       max_length=200,
-                                       description="State description"
-                                       )
+                                    max_length=200,
+                                    description="State description"
+                                    )
     is_active: bool = Field(True, description="Whether the state is active")
     sort_order: int = Field(0, ge=0, description="Sort order for display")
 
diff --git a/backend/app/services/workflow_service.py b/backend/app/services/workflow_service.py
index d2ba52c..50f8238 100644
--- a/backend/app/services/workflow_service.py
+++ b/backend/app/services/workflow_service.py
@@ -106,6 +106,7 @@ def get_ready_user_tasks(workflow: BpmnWorkflow) -> list[Task]:
             t for t in tasks_waiting if t not in tasks_ready
         ]
         # Identify BPMN User Tasks by bpmn_name or class name heuristic
+
         def is_user_task(t: Task) -> bool:
             name = getattr(t.task_spec, "bpmn_name", "")
             if isinstance(name, str) and name.lower() == "usertask":
@@ -154,4 +155,3 @@ def complete_user_task(instance_id: str, task_id: str, data: dict) -> dict:
         task.complete()
         workflow.do_engine_steps()
         return instance.to_dict()
-
diff --git a/frontend/src/constants/index.ts b/frontend/src/constants/index.ts
index e9860ac..8845215 100644
--- a/frontend/src/constants/index.ts
+++ b/frontend/src/constants/index.ts
@@ -1,2 +1 @@
 export const API_BASE = import.meta.env.VITE_API_BASE ?? 'http://localhost:8300/api/v1';
-
diff --git a/frontend/src/services/http.ts b/frontend/src/services/http.ts
index 1fb25a1..8202c56 100644
--- a/frontend/src/services/http.ts
+++ b/frontend/src/services/http.ts
@@ -2,7 +2,10 @@ import { API_BASE } from '../constants';
 
 type HttpMethod = 'GET' | 'POST' | 'PUT' | 'DELETE' | 'PATCH';
 
-export async function http<T = unknown>(path: string, options?: { method?: HttpMethod; body?: unknown; headers?: Record<string, string> }): Promise<T> {
+export async function http<T = unknown>(
+  path: string,
+  options?: { method?: HttpMethod; body?: unknown; headers?: Record<string, string> },
+): Promise<T> {
   const { method = 'GET', body, headers = {} } = options ?? {};
   const res = await fetch(`${API_BASE}${path}`, {
     method,
@@ -19,4 +22,3 @@ export async function http<T = unknown>(path: string, options?: { method?: HttpM
   if (res.status === 204) return undefined as T;
   return (await res.json()) as T;
 }
-
diff --git a/frontend/src/services/workflows.ts b/frontend/src/services/workflows.ts
index 582816c..4681c62 100644
--- a/frontend/src/services/workflows.ts
+++ b/frontend/src/services/workflows.ts
@@ -19,4 +19,3 @@ export async function completeUserTask(
     body: { data },
   });
 }
-
diff --git a/frontend/src/types/workflow.ts b/frontend/src/types/workflow.ts
index 0538581..c4fcf44 100644
--- a/frontend/src/types/workflow.ts
+++ b/frontend/src/types/workflow.ts
@@ -10,4 +10,3 @@ export type WorkflowInstance = {
   status: string;
   ready_user_tasks: TaskSummary[];
 };
-
diff --git a/frontend/tests/HelloWorld.spec.ts b/frontend/tests/HelloWorld.spec.ts
index f4db323..048e74e 100644
--- a/frontend/tests/HelloWorld.spec.ts
+++ b/frontend/tests/HelloWorld.spec.ts
@@ -1,6 +1,7 @@
 import { render, screen } from '@testing-library/vue';
 import { describe, it, expect } from 'vitest';
 import HelloWorld from '../src/components/HelloWorld.vue';
+import '@testing-library/jest-dom';
 
 describe('HelloWorld.vue', () => {
   it('renders the correct message', () => {

From 29a540119b3deec8c7a89c307dea0a402467f5bb Mon Sep 17 00:00:00 2001
From: Ann Jacob <ann.jacob@aot-technologies.com>
Date: Thu, 28 Aug 2025 18:07:04 -0400
Subject: [PATCH 34/36] Update .gitignore, eslint config, and package.json for
 improved linting and ignore patterns

---
 frontend/.gitignore        | 2 ++
 frontend/eslint.config.mjs | 1 +
 frontend/package.json      | 2 +-
 3 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/frontend/.gitignore b/frontend/.gitignore
index a547bf3..261136a 100644
--- a/frontend/.gitignore
+++ b/frontend/.gitignore
@@ -22,3 +22,5 @@ dist-ssr
 *.njsproj
 *.sln
 *.sw?
+
+.eslintcache
\ No newline at end of file
diff --git a/frontend/eslint.config.mjs b/frontend/eslint.config.mjs
index 8c82344..7e75c66 100644
--- a/frontend/eslint.config.mjs
+++ b/frontend/eslint.config.mjs
@@ -8,6 +8,7 @@ import prettier from 'eslint-plugin-prettier';
 export default [
   {
     files: ['**/*.ts', '**/*.vue', '**/*.js'],
+    ignores:['**/node_modules/**', '**/dist/**', '**/build/**'],
     languageOptions: {
       parser: vueParser,
       parserOptions: {
diff --git a/frontend/package.json b/frontend/package.json
index 1e79136..48d66b7 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -7,7 +7,7 @@
     "dev": "vite",
     "build": "vue-tsc -b && vite build",
     "preview": "vite preview --host",
-    "lint": "eslint . --ext .ts,.vue,.js",
+    "lint": "eslint . --ext .ts,.vue,.js --cache",
     "lint:fix": "eslint . --ext .ts,.vue,.js --fix",
     "format": "prettier --write .",
     "test": "vitest",

From 113b29e97366068a6b9c92e5e242fbf7cde9a7a9 Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Fri, 29 Aug 2025 20:11:54 +0000
Subject: [PATCH 35/36] Refactor workflow schemas into separate module

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/api/v1/endpoints/workflows.py | 14 ++------------
 backend/app/schemas/__init__.py           |  2 +-
 backend/app/schemas/workflow.py           | 15 +++++++++++++++
 3 files changed, 18 insertions(+), 13 deletions(-)
 create mode 100644 backend/app/schemas/workflow.py

diff --git a/backend/app/api/v1/endpoints/workflows.py b/backend/app/api/v1/endpoints/workflows.py
index 68e314b..99f2f60 100644
--- a/backend/app/api/v1/endpoints/workflows.py
+++ b/backend/app/api/v1/endpoints/workflows.py
@@ -1,23 +1,13 @@
 from fastapi import APIRouter, HTTPException
-from pydantic import BaseModel, Field
 
 from app.services.workflow_service import WorkflowService
+from app.schemas.workflow import StartWorkflowRequest, CompleteTaskRequest
 
 
 router = APIRouter()
 
 
-class StartWorkflowRequest(BaseModel):
-    name: str = Field(default="Simple Approval")
-    bpmn_filename: str = Field(default="simple_approval.bpmn")
-    process_id: str = Field(default="SimpleApproval")
-
-
-class CompleteTaskRequest(BaseModel):
-    class ApprovalData(BaseModel):
-        approved: bool
-
-    data: ApprovalData
+ 
 
 
 @router.post("/start", summary="Start a new workflow instance")
diff --git a/backend/app/schemas/__init__.py b/backend/app/schemas/__init__.py
index 9f2f091..8e1fef6 100644
--- a/backend/app/schemas/__init__.py
+++ b/backend/app/schemas/__init__.py
@@ -1 +1 @@
-# Schemas Package
+from .workflow import StartWorkflowRequest, CompleteTaskRequest
diff --git a/backend/app/schemas/workflow.py b/backend/app/schemas/workflow.py
new file mode 100644
index 0000000..ecfdbfa
--- /dev/null
+++ b/backend/app/schemas/workflow.py
@@ -0,0 +1,15 @@
+from pydantic import BaseModel, Field
+
+
+class StartWorkflowRequest(BaseModel):
+    name: str = Field(default="Simple Approval")
+    bpmn_filename: str = Field(default="simple_approval.bpmn")
+    process_id: str = Field(default="SimpleApproval")
+
+
+class CompleteTaskRequest(BaseModel):
+    class ApprovalData(BaseModel):
+        approved: bool
+
+    data: ApprovalData
+

From 6b37e1dd66404bc1363573501f7fa9725823fcdf Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Fri, 29 Aug 2025 20:17:10 +0000
Subject: [PATCH 36/36] Remove unused workflow schema imports

Co-authored-by: ann.jacob <ann.jacob@aot-technologies.com>
---
 backend/app/schemas/__init__.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/backend/app/schemas/__init__.py b/backend/app/schemas/__init__.py
index 8e1fef6..8d1c8b6 100644
--- a/backend/app/schemas/__init__.py
+++ b/backend/app/schemas/__init__.py
@@ -1 +1 @@
-from .workflow import StartWorkflowRequest, CompleteTaskRequest
+