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Early-stage Startup·Software Engineer·Technical Phone Screen·Intermediate

IntermediatePending
Jul 2026Remote

Summary

Prepping for an agentic coding interview using Claude Code through CodeSignal and genuinely unsure how to fill an hour when the whole thing is just prompting an AI and reviewing its output. The usual leetcode playbook doesn't really apply here.

Questions Asked (2)

Q1

In an agentic coding interview using an AI tool like Claude Code, what skills and techniques should you actually demonstrate to show competence beyond basic prompt engineering?

Technical Trade-offsAdaptability & Ambiguity
Author's notes

This is the one keeping me up at night.

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AI HintsAI Generated

Suggested Approach

Frame your answer around the idea that agentic coding is a collaborative workflow where you direct, verify, and iterate with the AI, not just write prompts. Emphasize concrete techniques like task decomposition, context management, and rigorous validation that demonstrate engineering judgment and adaptability in ambiguous startup environments.

Pro tip: Show that you treat the AI as a junior engineer: you set clear acceptance criteria, review its output critically, and know when to intervene manually. This signals maturity and prevents over-reliance on the tool.

1. Decompose the Problem

Break down the coding task into small, verifiable subtasks that the AI can handle sequentially, reducing ambiguity and enabling incremental progress.

2. Manage Context and Constraints

Provide the AI with relevant codebase context, architectural constraints, and clear success criteria to guide its output effectively.

3. Iterate with Verification

After each AI-generated change, run tests, review diffs, and validate against requirements; iterate with targeted feedback rather than accepting output blindly.

4. Adapt and Course-Correct

When the AI goes off track, adjust your approach—refine prompts, add examples, or take over manually—demonstrating flexibility and problem-solving.

5. Reflect and Improve

After the task, evaluate what worked and what didn't, and refine your workflow for future agentic coding sessions, showing a growth mindset.

Key Points to Mention

  • Task decomposition and incremental development to manage complexity
  • Context management: providing relevant code, docs, and constraints to the AI
  • Verification techniques: unit tests, code review, and diff analysis
  • Knowing when to intervene manually vs. letting the AI proceed
  • Adaptability in ambiguous startup settings: pivoting strategies based on AI output
  • Effective collaboration: treating the AI as a tool, not an oracle, and maintaining ownership

AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.

Q2

How do you conduct a meaningful code review on AI-generated code when the language or framework is unfamiliar to you?

Adaptability & AmbiguityTechnical Trade-offs
Author's notes

Genuinely scared about this one.

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AI HintsAI Generated

Suggested Approach

Emphasize that code review is about verifying intent, behavior, and risk rather than knowing every syntax detail. Describe a systematic process: clarify requirements, run and test the code, use tools and documentation, and focus on logic, security, and maintainability. Show that you can leverage AI as a review assistant while maintaining human judgment.

Pro tip: Treat AI-generated code as you would a junior developer's pull request: you don't need to know every line, but you must understand what it's supposed to do and verify it does that safely. Use AI to explain unfamiliar code, but never trust its explanations blindly—cross-check with official docs and tests.

1. Clarify intent and requirements

Before reviewing, ensure you understand what the code is supposed to accomplish, its inputs/outputs, and any constraints. Ask the author (or yourself) for a clear description of the expected behavior.

2. Run and test the code

Execute the code with representative inputs, including edge cases, and observe the results. Write or run unit tests to verify correctness and catch obvious errors.

3. Use tools and documentation

Leverage linters, static analyzers, and security scanners for the language/framework. Consult official documentation and community resources to understand unfamiliar patterns.

4. Focus on high-risk areas

Prioritize reviewing logic, security vulnerabilities, error handling, and performance bottlenecks. Check for common pitfalls like injection flaws, race conditions, or improper resource management.

5. Collaborate and seek expertise

If uncertainty remains, ask a colleague familiar with the language/framework to review critical sections. Use pair review or async comments to share knowledge.

Key Points to Mention

  • Behavior over syntax: focus on what the code does, not how it's written.
  • Testing as a primary verification method, including edge cases and error conditions.
  • Leveraging AI tools (e.g., ChatGPT, Copilot) to explain code, but validating their output.
  • Using static analysis and security scanning tools to catch issues you might miss.
  • Prioritizing security, performance, and maintainability in the review.
  • Knowing when to escalate or ask for help from someone with domain expertise.

AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.