Building Agent Actions

Agentforce & AIBuilding Agent ActionsDesign and build the tools your agents call: Apex invocable actions, autolaunched Flows, prompt template actions and API actions, with LLM-friendly contracts, confirmations, structured outputs, Custom Lightning Types, security, idempotency and testing, plus a complete Order Status and Return subagent.Advanced · about 90 minutesWhat you will learn

Choose between standard, Flow, Apex, prompt template and API actions for a requirement

Design action contracts (names, descriptions, inputs, outputs) that an LLM uses correctly

Build bulk-safe, secure, idempotent Apex and Flow actions that return errors the agent can reason about

Use confirmation, progress indicators, displayable outputs and user-input flags appropriately

Render structured inputs and outputs with Custom Lightning Types and LWC editors/renderers

Test actions independently of the agent and wire them into a subagent

Contents

Action types

Designing action contracts for an LLM

Apex actions

Flow actions

Prompt template actions

Rich inputs and outputs: Custom Lightning Types

Security: who does the action run as?

Testing actions independently

Worked example: an Order Status and Return subagent

Best practices

Common pitfalls

Hands-on exercises

Key takeaways