scaffold-logic-apps-project

name	scaffold-logic-apps-project
description	Scaffolds the initial Logic Apps Standard project structure for migration. Contains exact files, folder layout, VS Code configuration, runtime settings, workspace file format, and workflow-designtime config for a valid, runnable project.

Skill: Scaffolding a Logic Apps Standard Project for Migration

Purpose: This document is a definitive reference for AI agents creating the initial scaffold project structure for a Logic Apps Standard migration. It contains the exact files, folder structure, VS Code configuration, and runtime settings taken from a verified working project. Following this document precisely will produce a valid, runnable Logic Apps Standard project on the first attempt.

The scaffold creates the Logic App project and workspace file only. Custom code (local .NET functions) is NOT created during scaffolding — it is added later by a separate task using the dotnet-local-functions-logic-apps skill.

---

Table of Contents

1. Overview
2. Scaffold Output Structure
3. Naming Conventions
4. Complete File Reference
5. Step-by-Step Creation Guide
6. File Manifest & Verification Checklist
7. Troubleshooting

---

1. Overview

What the Scaffold Creates

The scaffold produces a ready-to-run Logic Apps Standard workspace that:

• Opens correctly in VS Code as a multi-root workspace
• Is recognized by the Azure Logic Apps (Standard) VS Code extension
• Can run locally with Azure Functions Core Tools and Azurite
• Has all required configuration for workflow design, debugging, and deployment
• Has a placeholder for custom code functions (folder created later, not during scaffold)
• Contains empty workflow folders ready for workflow definitions to be added

What the Scaffold Does NOT Create

• Custom code / local .NET functions — created later by the local functions skill
• Workflow definitions — workflow.json files are added during the conversion stage
• Connections — connections.json is created when connectors are configured
• Build outputs — lib/custom/net8/ or lib/custom/net472/ DLLs are produced by building the Functions project

When to Use This Skill

• At the start of a migration conversion, before any workflows or custom code are generated
• When creating a new Logic Apps Standard project from scratch
• When the agent needs to set up the target project structure for BizTalk/TIBCO/TIBCO/etc. migrations

---

2. Scaffold Output Structure

2.1 Directory Tree

out/
└── {workspaceName}/
    ├── {workspaceName}.code-workspace          ← VS Code multi-root workspace file
    │
    ├── {logicAppName}/                          ← Logic Apps Standard project
    │   ├── host.json                            ← Functions host configuration
    │   ├── local.settings.json                  ← Runtime settings (CRITICAL)
    │   ├── .funcignore                          ← Deployment exclusions
    │   ├── .gitignore                           ← Git ignore rules
    │   │
    │   ├── .vscode/
    │   │   ├── extensions.json                  ← Recommended VS Code extensions
    │   │   ├── launch.json                      ← Debug configuration
    │   │   ├── settings.json                    ← Logic App project settings
    │   │   └── tasks.json                       ← Build & run tasks
    │   │
    │   └── workflow-designtime/                 ← Design-time configuration
    │       ├── host.json                        ← Enables function discovery in designer
    │       └── local.settings.json              ← Design-time runtime settings
    │
    └── (Functions/)                             ← NOT created during scaffold
                                                    Created later by local functions skill

2.2 Key Points

1. out/ is the output root — all scaffolded projects go under out/
2. {workspaceName} is the workspace root — contains the .code-workspace file and project folders
3. {logicAppName} is the Logic App project — fully scaffolded with all config files
4. Functions/ is NOT created — it's a provision for the custom code task, created later using the local functions skill
5. No workflow folders are created — workflow directories (e.g., my-workflow/workflow.json) are added during conversion
6. No connections.json — created when connectors are configured, not during scaffold
7. No Artifacts/ folder — create it later only when maps, schemas, rules, or HIDX files are actually required
8. No lib/custom/ folder — create it later when the local functions project is added and built

---

3. Naming Conventions

3.1 Input Parameters

The scaffold requires these naming inputs:

Parameter	Description	Example	Used In
workspaceName	Name of the workspace and root folder	contoso-migration	Folder name, .code-workspace filename
logicAppName	Name of the Logic App project folder	contoso-logicapp	Folder name, workspace file reference

3.2 Naming Rules

• workspaceName: Use lowercase with hyphens. This becomes the folder name and the .code-workspace filename.
• logicAppName: Use lowercase with hyphens. This becomes the Logic App folder name and is referenced in the workspace file, launch.json, and local.settings.json.
• No spaces in either name — use hyphens (-) as separators.
• Keep names short — they appear in paths, debug labels, and VS Code UI.

3.3 Derived Values

Derived Value	Formula	Example
Workspace file	{workspaceName}.code-workspace	contoso-migration.code-workspace
Workspace root	out/{workspaceName}/	out/contoso-migration/
Logic App root	out/{workspaceName}/{logicAppName}/	out/contoso-migration/contoso-logicapp/
Launch config name	"Run/Debug logic app with local function {logicAppName}"	"Run/Debug logic app with local function contoso-logicapp"
ProjectDirectoryPath	Absolute path to {logicAppName}/ folder	C:\projects\out\contoso-migration\contoso-logicapp

---

4. Complete File Reference

Every file below must be created exactly as shown. Placeholders {workspaceName}, {logicAppName}, and {absoluteLogicAppPath} must be substituted with actual values.

4.1 Workspace File — {workspaceName}.code-workspace

{
    "folders": [
        {
            "name": "{logicAppName}",
            "path": "./{logicAppName}"
        }
    ],
    "settings": {}
}

IMPORTANT: The Logic App folder is listed first (and only, during scaffold). When the Functions project is added later, it will be appended as a second entry in the folders array. The Logic App must always remain first.

Note on settings: The settings block can optionally include terminal.integrated.env.windows with a PATH to the Logic Apps DotNetSDK for local development. During scaffold, leave it as {}.

4.2 host.json

{
    "version": "2.0",
    "logging": {
        "applicationInsights": {
            "samplingSettings": {
                "isEnabled": true,
                "excludedTypes": "Request"
            }
        }
    },
    "extensionBundle": {
        "id": "Microsoft.Azure.Functions.ExtensionBundle.Workflows",
        "version": "[1.*, 2.0.0)"
    }
}

Key details:

• "version": "2.0" — Azure Functions v2+ host
• extensionBundle — Uses the Workflows extension bundle (NOT the standard Functions bundle). This provides all the Logic Apps built-in connectors and operations.
• The bundle version range [1.*, 2.0.0) means any 1.x version but not 2.x

4.3 local.settings.json (CRITICAL)

{
    "IsEncrypted": false,
    "Values": {
        "AzureWebJobsStorage": "UseDevelopmentStorage=true",
        "FUNCTIONS_INPROC_NET8_ENABLED": "1",
        "FUNCTIONS_WORKER_RUNTIME": "dotnet",
        "APP_KIND": "workflowapp",
        "AzureWebJobsFeatureFlags": "EnableMultiLanguageWorker",
        "ProjectDirectoryPath": "{absoluteLogicAppPath}",
        "WORKFLOWS_SUBSCRIPTION_ID": ""
    }
}

Setting	Value	Why
AzureWebJobsStorage	"UseDevelopmentStorage=true"	Uses Azurite for local development storage
FUNCTIONS_INPROC_NET8_ENABLED	"1"	Enables .NET 8 host for loading custom code assemblies. Required even before custom code is added.
FUNCTIONS_WORKER_RUNTIME	"dotnet"	NEVER use "dotnet-isolated" — Logic Apps Standard always uses "dotnet"
APP_KIND	"workflowapp"	Identifies this as a Logic App Standard project (note: lowercase 'a' in 'app')
AzureWebJobsFeatureFlags	"EnableMultiLanguageWorker"	Required for custom code execution alongside the workflow engine
ProjectDirectoryPath	Absolute path to logicapp folder	Tells the runtime where to find workflow definitions. Use forward slashes or escaped backslashes.
WORKFLOWS_SUBSCRIPTION_ID	""	Azure subscription ID — empty for local development

⚠️ CRITICAL: All these settings must be present from the start. Missing any of them will cause runtime failures when workflows or custom code are added later.

4.4 .vscode/extensions.json

{
    "recommendations": ["ms-azuretools.vscode-azurelogicapps"]
}

4.5 .vscode/launch.json

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Run/Debug logic app with local function {logicAppName}",
            "type": "logicapp",
            "request": "launch",
            "funcRuntime": "coreclr",
            "customCodeRuntime": "coreclr",
            "isCodeless": true
        }
    ]
}

Key details:

• "type": "logicapp" — requires the Azure Logic Apps (Standard) VS Code extension
• "funcRuntime": "coreclr" — Logic Apps host runtime
• "customCodeRuntime": "coreclr" — .NET 8 custom code runtime (default for new projects). If the project will use .NET 4.7.2 custom code, change to "clr".
• "isCodeless": true — indicates this is a Logic Apps project (not a raw Azure Functions project)

4.6 .vscode/settings.json

{
    "azureLogicAppsStandard.projectLanguage": "JavaScript",
    "azureLogicAppsStandard.projectRuntime": "~4",
    "debug.internalConsoleOptions": "neverOpen",
    "azureFunctions.suppressProject": true
}

Key details:

• "azureLogicAppsStandard.projectLanguage": "JavaScript" — This is correct even though custom code uses C#. This setting refers to the Logic Apps workflow engine language, not the custom code language.
• "azureFunctions.suppressProject": true — Prevents the Azure Functions extension from treating this as a Functions project and interfering with the Logic Apps extension.

4.7 .vscode/tasks.json

{
    "version": "2.0.0",
    "tasks": [
        {
            "label": "generateDebugSymbols",
            "command": "${config:azureLogicAppsStandard.dotnetBinaryPath}",
            "args": ["${input:getDebugSymbolDll}"],
            "type": "process",
            "problemMatcher": "$msCompile"
        },
        {
            "type": "shell",
            "command": "${config:azureLogicAppsStandard.funcCoreToolsBinaryPath}",
            "args": ["host", "start"],
            "options": {
                "env": {
                     
                
            
             
             
             
             
                 
                 
            
        
    
     
        
             
             
             
        
    

Key details:

• "generateDebugSymbols" task — generates PDB files for debugging custom code
• "func: host start" task — starts the Azure Functions host, which runs the Logic App locally
• Both tasks reference azureLogicAppsStandard.* config paths provided by the Logic Apps extension
• The func: host start task sets up PATH to include NodeJs and DotNetSDK from the extension's auto-installed dependencies

4.8 workflow-designtime/host.json

{
    "version": "2.0",
    "extensionBundle": {
        "id": "Microsoft.Azure.Functions.ExtensionBundle.Workflows",
        "version": "[1.*, 2.0.0)"
    },
    "extensions": {
        "workflow": {
            "settings": {
                "Runtime.WorkflowOperationDiscoveryHostMode": "true"
            }
        }
    }
}

Purpose: This file enables the Logic Apps designer to discover available operations (built-in actions, connectors, and custom functions) at design time. Without this file:

• The visual designer won't show the "Call a local function" action
• Connector discovery may not work correctly in the designer

4.9 workflow-designtime/local.settings.json

{
    "IsEncrypted": false,
    "Values": {
        "APP_KIND": "workflowapp",
        "ProjectDirectoryPath": "{absoluteLogicAppPath}",
        "FUNCTIONS_WORKER_RUNTIME": "node",
        "AzureWebJobsSecretStorageType": "Files"
    }
}

Key details:

• "FUNCTIONS_WORKER_RUNTIME": "node" — This is intentionally "node" for design-time (NOT "dotnet"). The design-time host uses Node.js for operation discovery.
• "AzureWebJobsSecretStorageType": "Files" — Stores secrets as local files during development
• "ProjectDirectoryPath" — Must match the same absolute path used in the runtime local.settings.json

4.10 .funcignore

.debug
.git*
.vscode
__azurite_db*__.json
__blobstorage__
__queuestorage__
global.json
local.settings.json
test
workflow-designtime/

Purpose: Specifies files/folders to exclude when deploying the Logic App to Azure. These are development-only artifacts.

4.11 .gitignore

# Azure logic apps artifacts
bin
obj
appsettings.json
local.settings.json
__blobstorage__
.debug
__queuestorage__
__azurite_db*__.json

# Added folders and file patterns
workflow-designtime/

*.code-workspace

Purpose: Standard git ignore for Logic Apps projects. Note that local.settings.json is excluded (contains local-only settings and potentially secrets) and workflow-designtime/ is excluded (generated/local-only).

4.12 Empty Directories

No empty directories need to be created during scaffold.

Do NOT scaffold Artifacts/, lib/custom/, or lib/builtinOperationSdks/ by default. Create them later only when actually required.

---

5. Step-by-Step Creation Guide

Step 1: Determine Names

Determine the workspaceName and logicAppName from the migration context:

• workspaceName: Typically derived from the source project name or the migration task name (e.g., contoso-order-processing)
• logicAppName: Typically the target Logic App name (e.g., contoso-logicapp or order-processing-logicapp)

Step 2: Compute the Absolute Path

Compute {absoluteLogicAppPath} — the full absolute path to the Logic App folder:

{outputRoot}\{workspaceName}\{logicAppName}

Example: C:\projects\out\contoso-migration\contoso-logicapp

This path is used in local.settings.json and workflow-designtime/local.settings.json.

Step 3: Create Workspace File

Create out/{workspaceName}/{workspaceName}.code-workspace (see §4.1)

Step 4: Create Logic App Config Files

Create these files in out/{workspaceName}/{logicAppName}/:

#	File	Reference
1	host.json	§4.2
2	local.settings.json	§4.3
3	.funcignore	§4.10
4	.gitignore	§4.11

Step 5: Create .vscode/ Files

Create these files in out/{workspaceName}/{logicAppName}/.vscode/:

#	File	Reference
5	extensions.json	§4.4
6	launch.json	§4.5
7	settings.json	§4.6
8	tasks.json	§4.7

Step 6: Create workflow-designtime/ Files

Create these files in out/{workspaceName}/{logicAppName}/workflow-designtime/:

#	File	Reference
9	host.json	§4.8
10	local.settings.json	§4.9

Step 7: Create Empty Directories

Do not create any empty directories during scaffold.

Step 8: Verify

Verify the scaffold by checking:

• All 10 files exist with correct content
• No extra empty directories were scaffolded
• local.settings.json has the correct ProjectDirectoryPath
• workflow-designtime/local.settings.json has the correct ProjectDirectoryPath
• Workspace file references the {logicAppName} folder correctly

---

6. File Manifest & Verification Checklist

Complete File List (10 files)

#	Relative Path (from workspace root)	Type	Template?
1	{workspaceName}.code-workspace	File	Yes — {logicAppName}
2	{logicAppName}/host.json	File	No — static content
3	{logicAppName}/local.settings.json	File	Yes — {absoluteLogicAppPath}
4	{logicAppName}/.funcignore	File	No — static content
5	{logicAppName}/.gitignore	File	No — static content
6	{logicAppName}/.vscode/extensions.json	File	No — static content
7	{logicAppName}/.vscode/launch.json	File	Yes — {logicAppName}
8	{logicAppName}/.vscode/settings.json	File	No — static content
9	{logicAppName}/.vscode/tasks.json	File	No — static content
10	{logicAppName}/workflow-designtime/host.json	File	No — static content
11	{logicAppName}/workflow-designtime/local.settings.json	File	Yes — {absoluteLogicAppPath}

Verification Checklist

• Workspace file exists at out/{workspaceName}/{workspaceName}.code-workspace
• Workspace file folders array contains the Logic App folder with correct name and path
• host.json has extensionBundle with Microsoft.Azure.Functions.ExtensionBundle.Workflows
• local.settings.json has ALL 7 required settings:
  • AzureWebJobsStorage
  • FUNCTIONS_INPROC_NET8_ENABLED
  • FUNCTIONS_WORKER_RUNTIME = "dotnet"
  • APP_KIND = "workflowapp"
  • AzureWebJobsFeatureFlags = "EnableMultiLanguageWorker"
  • ProjectDirectoryPath (absolute path)
  • WORKFLOWS_SUBSCRIPTION_ID
• launch.json has "type": "logicapp" and "customCodeRuntime": "coreclr"
• settings.json has "azureFunctions.suppressProject": true
• workflow-designtime/host.json has Runtime.WorkflowOperationDiscoveryHostMode = "true"
• workflow-designtime/local.settings.json has FUNCTIONS_WORKER_RUNTIME = "node" (design-time!)
• No scaffold-only empty directories exist
• No Functions/ folder exists (created later by local functions task)
• No workflow folders exist (created during conversion)
• exists (created when connectors are configured)

---

7. Troubleshooting

Common Scaffold Issues

Issue	Cause	Fix
Logic Apps extension doesn't recognize project	Missing APP_KIND in local.settings.json	Add "APP_KIND": "workflowapp"
Designer shows no operations	Missing workflow-designtime/ folder	Create workflow-designtime/host.json with Runtime.WorkflowOperationDiscoveryHostMode
F5 debugging fails	Missing launch.json or wrong type	Ensure "type": "logicapp" in launch.json
"Not a Functions project" warning	azureFunctions.suppressProject not set	Add "azureFunctions.suppressProject": true to .vscode/settings.json
Storage errors on run	AzureWebJobsStorage missing or Azurite not running	Ensure "UseDevelopmentStorage=true" and start Azurite
Workflows not found	ProjectDirectoryPath incorrect	Set to the correct absolute path of the Logic App folder
Custom code not discovered later	AzureWebJobsFeatureFlags missing	Add "EnableMultiLanguageWorker" from the start
Workspace doesn't open correctly	.code-workspace file malformed	Ensure folders[0].path matches the Logic App folder name
InvokeFunction fails with "function does not exist"	Files placed under lib/builtinOperationSdks/ if that folder was created unnecessarily	Delete the unused lib/builtinOperationSdks/ folder, or remove all files from it and keep it truly empty. Do not scaffold it by default.

Post-Scaffold: Adding Workflows

After scaffolding, workflows are added by creating folders under the Logic App root:

{logicAppName}/
├── my-workflow/
│   └── workflow.json
├── another-workflow/
│   └── workflow.json

Each workflow is a subfolder containing a single workflow.json file. See the Logic Apps workflow schema for workflow.json structure.

Post-Scaffold: Adding Custom Code

When custom code is needed, use the dotnet-local-functions-logic-apps skill to:

1. Create the Functions/ project as a sibling folder
2. Add the Functions folder to the workspace file's folders array
3. Build the Functions project to populate lib/custom/

The workspace file will be updated from:

{
    "folders": [{ "name": "{logicAppName}", "path": "./{logicAppName}" }]
}

To:

{
    "folders": [
        { "name": "{logicAppName}", "path": "./{logicAppName}" },
        { "name": "Functions", "path": "./Functions" }
    ]
}

Post-Scaffold: Adding Connections

When connectors (e.g., Service Bus, SQL, HTTP) are used in workflows, a connections.json file is created at the Logic App root:

{logicAppName}/
├── connections.json      ← Created when connectors are configured
├── host.json
├── local.settings.json
└── ...

---

8. Quick Reference Card

┌──────────────────────────────────────────────────────────────────────┐
│     Logic Apps Standard — Scaffold Project Structure                 │
├──────────────────────────────────────────────────────────────────────┤
│                                                                      │
│  OUTPUT:                                                             │
│    out/{workspaceName}/                                              │
│    ├── {workspaceName}.code-workspace                                │
│    └── {logicAppName}/                                               │
│        ├── host.json                                                 │
│        ├── local.settings.json         ← 7 required settings        │
│        ├── .funcignore                                               │
│        ├── .gitignore                                                │
│        ├── .vscode/                    ← 4 files                    │
│        └── workflow-designtime/        ← 2 files                    │
│                                                                      │
│  TOTAL: 10 files                                                     │
│                                                                      │
│  PLACEHOLDERS TO SUBSTITUTE:                                         │
│    {workspaceName}      → workspace folder + filename                │
│    {logicAppName}       → Logic App folder name                      │
│    {absoluteLogicAppPath} → full path to logicapp folder             │
│                                                                      │
│  CRITICAL SETTINGS (local.settings.json):                            │
│    FUNCTIONS_WORKER_RUNTIME     = "dotnet"                           │
│    FUNCTIONS_INPROC_NET8_ENABLED = "1"                               │
│    APP_KIND                     = "workflowapp"                      │
│    AzureWebJobsFeatureFlags     = "EnableMultiLanguageWorker"        │
│    AzureWebJobsStorage          = "UseDevelopmentStorage=true"       │
│                                                                      │
│  NOT CREATED IN SCAFFOLD:                                            │
│    ✗ Functions/ project    (added later by custom code task)         │
│    ✗ workflow.json files   (added during conversion)                 │
│    ✗ connections.json      (added when connectors configured)        │
│                                                                      │
│  DESIGN-TIME:                                                        │
│    workflow-designtime/host.json must have:                           │
│      Runtime.WorkflowOperationDiscoveryHostMode = "true"             │
│    workflow-designtime/local.settings.json must have:                 │
│      FUNCTIONS_WORKER_RUNTIME = "node" (NOT "dotnet"!)               │
│                                                                      │
└──────────────────────────────────────────────────────────────────────┘

---

Document Metadata

Field	Value
Created	2026-03-12
Source	Verified working project: Q:\LAWorkspace\net8-customcode-workspace
Related Skills	dotnet-local-functions-logic-apps (for adding custom code post-scaffold)
Verified Against	Azure Functions Core Tools v4, Extension Bundle Workflows [1.*, 2.0.0), Azure Logic Apps (Standard) VS Code extension
Applicable To	Logic Apps Standard (single-tenant), VS Code development, local + cloud deployment