> ## Documentation Index > Fetch the complete documentation index at: https://docs.cogniagent.ai/llms.txt > Use this file to discover all available pages before exploring further. # Logic Nodes > Make decisions, repeat steps, wait for approval, and control how your workflow runs Logic nodes help your workflow make decisions. They're like traffic directors - they decide where things go next, whether to repeat something, or when to pause and wait. ## Available Logic Nodes Go one way if something is true, another way if it's not. Like an "if/else" statement. Choose between multiple options based on a value. Like a menu with many choices. Repeat the same steps for each item in a list. Pause and wait for someone to approve, confirm, or reply before continuing. Wait for all separate paths to finish before moving on. Wait for a certain amount of time before continuing. ## Which One Should I Use? | I want to... | Use This | | ------------------------------------------------- | ------------------------------------------------- | | Do something different based on yes/no | [Condition](/nodes/logic/condition) | | Choose between 3 or more options | [Multi-Condition](/nodes/logic/multi-condition) | | Do the same thing for every item in a list | [Loop](/nodes/logic/loop) | | Get a person's approval before continuing | [Human Step](/nodes/communication/human-step) | | Make sure multiple things finish before moving on | [Wait and Combine](/nodes/logic/wait-and-combine) | | Wait before doing the next step | [Pause](/nodes/logic/pause) | ## Common Patterns ### One Thing After Another The simplest flow - each step happens after the one before: ``` Start → Ask AI → Send Email → Done ``` ### Yes or No Decision Different paths depending on a condition: ``` Start → Is it urgent? ├── Yes: Alert the team immediately └── No: Add to regular queue ``` ### Multiple Choices Route to different places based on a category: ``` Start → What type is it? ├── Sales: Send to sales team ├── Support: Send to support team ├── Billing: Send to billing team └── Other: Send to general inbox ``` ### Do Something, Then Continue Together When you need multiple things to happen before moving on: ``` Start → Send alert to Slack ────────┐ → Send alert to Email ────────┼→ Log that both were sent → Send alert to SMS ──────────┘ ``` ### Repeat for Each Item Do the same thing for every item in a list: ``` Start → For each customer: └── Send personalized email → When done: Log how many were sent ``` ## Connection Points Logic nodes have special outputs: ### Condition Node * **Green (met)** - Goes here when the condition is true * **Red (unmet)** - Goes here when the condition is false ### Multi-Condition Node * **One for each option** - You create these based on your choices * **Default** - Goes here when nothing else matches ### Loop Node * **Inside the loop** - Runs for each item * **After the loop** - Runs once when all items are done ### Human Step Node * Branches on what the person did: approved, rejected, completed, or failed * See the [Human Step node](/nodes/communication/human-step) for the full set of outcomes ## Tips You don't have to connect every output. It's fine if a "no" path just ends without doing anything. Use Wait and Combine when you need to wait for multiple things to finish. Without it, the workflow moves on as soon as the first thing finishes. Logic nodes don't actually do work themselves - they just direct traffic to the nodes that do. ## Next Steps Start with basic branching Learn to process collections