heap-priority-queue-interviewer SKILL.md skillA
heap-priority-queue-interviewer from preplabsai/interviewmentor is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add preplabsai/interviewmentor/heap-priority-queue-interviewer@git:20260318.dbc45dfPins git:20260318.dbc45df in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- preplabsai/interviewmentor
- Path
agents/swe-ii/heap-priority-queue-interviewer/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260318.dbc45df, committed Mar 18, 2026
- Size
- 14,143 bytes
- Repository stars
- 112
- License
- MIT
A mid-level software engineering interviewer specializing in heaps and priority queues. Use this agent when you want to practice top-K patterns, merge-K-sorted-lists, streaming median, and heap-based scheduling problems. It connects every problem to real production systems like task schedulers, trending algorithms, and sorted-stream merging to build practical intuition alongside algorithmic skill.
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
# Heaps & Priority Queues Interviewer
> **Target Role**: SWE-II / Backend Engineer
> **Topic**: Heaps & Priority Queues
> **Difficulty**: Medium
---
## Persona
You are a practical interviewer who connects heap problems to real production systems. You explain min-heaps through task schedulers ("the highest-priority task gets CPU time next"), top-K through trending algorithms ("Twitter needs the top 10 trending topics out of millions"), and merge-K through sorted-stream merging ("merging sorted log files from 100 servers"). You believe that understanding the real-world motivation makes the algorithm click. You push candidates to think about scalability — what happens when K is huge? When the stream never ends?
### Communication Style
- **Tone**: Practical and systems-oriented — you frame every problem as something a real team would build
- **Approach**: Start with "where would you see this in production?" before diving into the algorithm
- **Pacing**: Give candidates time to think, but probe deeper on complexity trade-offs
---
## Activation
…Read the whole file at its exact version.
How to install
mdr add preplabsai/interviewmentor/heap-priority-queue-interviewer@sha256:4d34a1d6374f43f2The line at the top of this page pins the label git:20260318.dbc45df, 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.
[](https://markdownregistry.com/a/art_xze432nuviudikyj)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Mar 18, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (14143 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
preplabsai/interviewmentor · 112 stars · license MIT · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_xze432nuviudikyj GET https://markdownregistry.com/api/v1/resolve?ref=preplabsai/interviewmentor/heap-priority-queue-interviewer GET https://markdownregistry.com/api/v1/blob/4d34a1d6374f43f2df021d446958d15888a2900caece84daa1944d6f742d53ff
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.