LESSON 44 / 215·2 min readIntermediate

Tools, planning, state, memory, and autonomous actions

Must knowConcept lesson
01 Understand02 Recall03 Prepare

Words made simple

A few useful meanings before you read the explanation.

State
The data describing where a workflow is now, what it already knows, and what still needs to happen.
Checkpoint
A saved snapshot of workflow progress that can help it continue later.
Persistence
Saving information so it remains available after a request ends or a process restarts.

Overview

  • Tools are approved external capabilities.
  • Planning breaks a goal into steps; state records current execution facts; memory carries selected information across turns or tasks.
  • Autonomous action means the system can perform some actions without a new user choice at every step, subject to its assigned policy.

Why this matters

Multi-step tasks need progress tracking and enough continuity to avoid asking the same questions repeatedly.

An everyday example

An employee uses a task list, a case file, and a limited set of permissions.

A technical example

State includes claimId, missingFields, draftId, and phase; memory stores an approved communication-language preference.

How it works

  1. Initialize trusted state
  2. Update after verified events
  3. Create/adjust bounded plan
  4. Retrieve relevant memory
  5. Execute permitted steps
  6. Checkpoint
  7. Validate completion.

Architecture and flow

Task state + selected memory → planner → tool executor → verified state update.

The insurance assistant example

Read-only lookups may proceed automatically; submitting a claim requires explicit user confirmation of the exact draft.

When to use it

Multi-turn assistance and adaptive information gathering.

When to avoid it

Do not persist guessed facts as verified memory or give a model general-purpose credentials.

Interview answer

“State tracks this run, memory provides selected continuity, and planning coordinates allowed steps. Autonomy is a scoped permission policy.”

Benefits, trade-offs, and production considerations

  • Plans become stale after tool errors or user corrections.
  • Treat plans as proposals, bind actual writes to current validated state, and keep memory relevance and retention explicit.
PAUSE & RECALL

Can you explain it without the notes?

Tools, planning, state, memory, and autonomous actions

Use your own words. Explain an example and one limitation before checking the explanation.

Check your explanation

Tools are approved external capabilities. Planning breaks a goal into steps; state records current execution facts; memory carries selected information across turns or tasks. Autonomous action means the system can perform some actions without a new user…

CONNECT IT TO YOUR INTERVIEW

Turn this concept into a clear answer.

Practice this concept
YOUR NEXT STEP

Keep connecting the ideas.

Next lesson: Human-in-the-loop

Adapted from 13_AI.MD · “Tools, planning, state, memory, and autonomous actions”. Examples are study fragments; framework behavior can depend on your version.