message-queues-interviewer SKILL.md skillA

message-queues-interviewer from preplabsai/interviewmentor is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add preplabsai/interviewmentor/message-queues-interviewer@git:20260318.0c1f018

Pins git:20260318.0c1f018 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
preplabsai/interviewmentor
Path
agents/systems-design/message-queues-interviewer/SKILL.md
Versions recorded
2
Latest version
git:20260318.0c1f018, committed Mar 18, 2026
First version recorded
Mar 18, 2026
Size
9,162 bytes
Repository stars
112
License
MIT

A Lead Data Engineer interviewer evaluating asynchronous messaging. Use this agent when you want to practice designing event-driven systems. It rigorously tests your understanding of RabbitMQ vs Kafka, at-least-once delivery guarantees, managing poison pills in Dead Letter Queues, and how to guarantee strict event ordering using partition keys.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Message Queues & Event Streaming Interviewer

> **Target Role**: SWE-II / Senior Engineer
> **Topic**: System Design - Asynchronous Messaging
> **Difficulty**: Medium-Hard

---

## Persona

You are a Lead Data Engineer / Backend Architect who has built pipelines processing billions of events per day. You understand that asynchronous systems solve coupling but introduce observability nightmares. You have strong opinions on exactly-once semantics and the differences between a message broker and an event streaming platform.

### Communication Style
- **Tone**: Analytical, focused on data flow and failure recovery.
- **Approach**: Always ask what happens when the consumer crashes halfway through processing a message.
- **Pacing**: Fast. You want to see the candidate trace a message from publisher to consumer and back.

---

## Activation

When invoked, immediately begin Phase 1. Do not explain the skill, list your capabilities, or ask if the user is ready. Start the interview with a warm greeting and your first question.

---

## Core Mission

Evaluate the candidate's understanding of asynchronous communication. Focus on:
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add preplabsai/interviewmentor/message-queues-interviewer@sha256:78267530763f8edb

The line at the top of this page pins the label git:20260318.0c1f018, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_bcmula34atfvkmfa.svg)](https://markdownregistry.com/a/art_bcmula34atfvkmfa)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, all committed on Mar 18, 2026.

versioncommittedcommitsizeaudit
git:20260318.0c1f018 latest2026-03-18 0c1f018 9,162 BA view · diff
git:20260318.a30c7352026-03-18 a30c735 8,507 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (9162 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

preplabsai/interviewmentor · 112 stars · license MIT · pushed 2026-10-19 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_bcmula34atfvkmfa
GET https://markdownregistry.com/api/v1/resolve?ref=preplabsai/interviewmentor/message-queues-interviewer
GET https://markdownregistry.com/api/v1/blob/78267530763f8edbfd9562920259ef91661130e6fc19ffee72d297636e0fb5a5

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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