Planning Fundamentals

Master how AI agents break down complex goals into executable steps

Planning Strategies

Different problems require different planning approaches. Just like a GPS can route by fastest time or shortest distance, AI agents use different strategies depending on the problem structure.

Interactive: Strategy Explorer

Select a strategy below and watch how the planning process unfolds

Forward Planning

Start from current state, plan toward goal

1
Current State
Where we are now
2
Step 1
First action
3
Step 2
Next action
4
Step 3
Final action
5
Goal Achieved
Desired outcome
Example
Travel from NYC to LA: Book flight → Pack bags → Drive to airport → Board plane → Arrive LA
✓ Advantages
  • Natural to understand
  • Easy to validate each step
  • Works well with known starting conditions
⚠ Limitations
  • May explore unnecessary paths
  • Can get stuck in local optima

Choosing the Right Strategy

Use Forward Planning When:
  • • Current state is well-defined and known
  • • Actions have predictable outcomes
  • • You want to explore multiple paths
  • • Example: Route planning, game AI, process automation
Use Backward Planning When:
  • • Goal is clear but path is uncertain
  • • You want the most efficient solution
  • • Prerequisites are well-defined
  • • Example: Dependency resolution, proof planning, workflow design
Use Hierarchical Planning When:
  • • Problem is large and complex
  • • Need to adapt plan during execution
  • • Want to reason at different abstraction levels
  • • Example: Project management, military strategy, multi-agent coordination

Hybrid & Advanced Strategies

Real-world agents often combine multiple strategies:

Bidirectional Planning
Plan forward from start AND backward from goal simultaneously, meet in the middle
Reactive Replanning
Start with a plan, but monitor execution and replan if conditions change
Constraint-Based Planning
Define constraints upfront, let solver find any valid plan that satisfies them