
Alex Delaney
Generating with AI

Building Grounded and Capable AI Systems with RAG, Function Calling, and Agentic Loops
Description provided by the user:A user requested a presentation slide that visually compares three fundamental patterns for building advanced Large Language Model (LLM) applications: Retrieval-Augmented Generation (RAG), Function Calling, and Agentic Loops. The goal is to explain how these techniques contribute to creating AI systems that are both 'grounded' in facts and 'capable' of performing actions. The user asked for a clean, three-column layout, with each pattern having its own distinct color scheme, a simple diagram, and a list of practical development tips for implementation.
Categories
Generated Notes
Behind the Scenes
How AI generated this slide
- The AI first deconstructed the request into three core concepts: RAG, Function Calling, and Agentic Loops, under the unifying theme of 'Grounded and capable systems'.
- A three-column layout was chosen for direct comparison, with a distinct color variant (sky, emerald, amber) assigned to each concept for clear visual distinction and thematic consistency.
- The slide was built using a modular, component-based architecture in React, creating reusable elements like 'ColumnCard', 'NodePill', and 'Arrow' for clean and maintainable code.
- For each column, the AI designed a custom diagram component to visually represent the core process: a linear flow for RAG, a JSON schema for Function Calling, and a cyclical loop for the Agent.
- Finally, the components were assembled into the main slide structure, and comprehensive speaker notes were generated to guide the presenter through explaining each concept and its practical implications.
Why this slide works
This slide excels at making complex AI engineering concepts accessible through a clear and structured visual design. The three-column layout allows for easy side-by-side comparison of RAG, Function Calling, and Agents. The distinct color-coding for each pattern creates strong visual recall and helps differentiate the concepts. Each column combines a title, a conceptual badge (Grounding, Control, Autonomy), a simplified diagram, and actionable bullet points, providing a multi-layered explanation that caters to both quick glances and deeper dives. The use of Framer Motion for subtle animations adds a professional polish, making the content more engaging. The code itself is clean and follows modern front-end development practices, making it a great example of high-quality web component design.
Frequently Asked Questions
What is the main difference between RAG, Function Calling, and Agents?
RAG (Retrieval-Augmented Generation) is for 'grounding'; it connects the AI model to external knowledge to provide factual, verifiable answers with citations. Function Calling provides 'control'; it allows the model to interact with external APIs by generating structured data, like JSON, to call specific functions. Agents represent 'autonomy'; they create an iterative loop (Plan → Act → Observe → Reflect) where the model can use tools (via function calling) and knowledge (via RAG) to complete complex, multi-step tasks. They build on each other: RAG grounds the model, functions give it tools, and agents orchestrate those tools over time.
Why is 'constrained decoding' important for Function Calling?
Constrained decoding is crucial for reliability in Function Calling. When an AI model needs to call a function, it must generate arguments that match a predefined structure, typically a JSON Schema. Without constraints, the model might generate invalid JSON or arguments with incorrect data types, causing the API call to fail. Constrained decoding forces the model's output to conform to the schema during generation, guaranteeing that the output is always valid. This eliminates brittle parsing and error-handling logic, making the entire system more robust and predictable.
What are the risks of using an Agentic Loop and how can they be mitigated?
Agentic loops, while powerful, risk getting stuck in infinite cycles, taking unintended actions, and incurring high costs from repeated model/tool calls. The slide suggests mitigations for these issues. To prevent infinite loops, you should 'cap depth' to limit the number of cycles. To ensure reliability, use 'small, reliable tools' and implement 'retry with guards' logic for tool call failures. To manage state and avoid drift, it's vital to 'persist summaries' of actions and observations in a short-term memory, as highlighted in the 'Reflect' step of the loop.
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