AI engineering glossary · Agents tools MCP
What is replanning?
Replanning: Revising an agent's plan mid-task after a step fails, returns surprising data or the goal changes. Without it, an agent may keep following a plan that no longer makes sense and waste steps or cost.
Replanning: an example
A flight search tool returns 'no seats', so the agent drops its original itinerary and replans using the next day's departure.
Related terms
More Agents tools MCP terms
- Retry with backoff
- Router pattern
- Sandbox
- Scope (OAuth)
- Scratchpad memory
- Self-critique
- Semantic memory
- Shared state
Where you learn it
Replanning is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.