Modular Agent Plans for Reliability | Dataford Interview Questions

How do you structure an agent plan to ensure code modularity and reliability?

Implement build_agent_plan(plan) to validate and order independent agent steps. Each step must have a unique non-empty id, a non-empty action, a depends_on list, an integer retries from 0 to 3, and an idempotent boolean. A step with retries greater than zero must be idempotent. Return step IDs in a valid deterministic execution order, preserving input order when multiple steps are available. Return None for invalid plans, including missing dependencies or dependency cycles.

Input is a list of step dictionaries. Output is a list of strings or None.

Constraints

0 <= len(plan) <= 10^4
Each step is a dictionary with keys id, action, depends_on, retries, and idempotent
id and action are non-empty strings
0 <= retries <= 3
Each dependency refers to a step ID in plan
A dependency cannot be repeated within one step

Function Signature

def build_agent_plan(plan):

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Problem

How do you structure an agent plan to ensure code modularity and reliability?

Input is a list of step dictionaries. Output is a list of strings or None.

Constraints

0 <= len(plan) <= 10^4
Each step is a dictionary with keys id, action, depends_on, retries, and idempotent
id and action are non-empty strings
0 <= retries <= 3
Each dependency refers to a step ID in plan
A dependency cannot be repeated within one step

Function Signature

def build_agent_plan(plan):

Your question is Modular Agent Plans for Reliability. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.