Coding interviews for the agentic era

See how candidates work with an agent — not just what they ship.

Plaiback gives every candidate a built-in, fully-logged Claude agent inside a real web IDE. Every prompt, tool call, diff, and decision is captured and replayable — so you assess orchestration skill, the thing that actually matters now.

Request access See how it works Async take-home (no scheduling) or live — same full record either way.

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From invite to decision in three steps

Take-home or live — evidence-rich either way.

Send an invite

Pick a task from the catalog (or bring your own), set a budget and time window, and send a one-click invite link. No setup for the candidate.

They work with the agent

The candidate solves the task in a real in-browser IDE with a built-in Claude agent and live preview. Everything they and the agent do is logged as it happens.

You replay & score

An LLM judge grades the session against your rubric; you replay the timeline, confirm or adjust, and compare candidates side by side. Decide on evidence.

Hiring signal built for how engineers actually work today

Candidates ship with agents on the job. Your interview should let them — and show you whether they're any good at it.

The event log is the product

Every prompt, tool call, file diff, and agent decision is recorded as a replayable timeline. You watch the reasoning unfold instead of guessing from a final diff.

LLM-judge + human scoring

An LLM judge grades each session against a rubric and surfaces the moments worth a second look. Humans confirm the call — fast where it's clear, careful where it isn't.

Take-home or live

Send it as an async take-home — no calendars, candidates work whenever — or run it live and watch the session unfold in real time. Same complete, replayable record either way.

Real tasks, real sandbox

Candidates work in a genuine web IDE with a live preview and a curated task catalog — trap-based problems where 'green tests' aren't the same as 'correct'.

Replay & compare

Re-run any session step by step, or put two candidates side by side. Calibrate your bar against evidence, not vibes.

Orchestration over typing speed

The skill that matters now is directing an agent well: framing problems, catching its mistakes, knowing when to dig in. Plaiback measures exactly that.

Run your next coding interview on Plaiback

Currently invite-only while we work with early teams. Tell us who you're hiring and we'll get you set up.