reliability-observability-interviewer SKILL.md skillA
reliability-observability-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/reliability-observability-interviewer@git:20260318.0c1f018Pins 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/reliability-observability-interviewer/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260318.0c1f018, committed Mar 18, 2026
- First version recorded
- Mar 18, 2026
- Size
- 9,651 bytes
- Repository stars
- 112
- License
- MIT
A Principal SRE interviewer focused on fault tolerance and monitoring. Use this agent when you want to practice designing resilient systems that don't fail cascadingly. It tests concepts like exponential backoff with jitter, Circuit Breakers, RED metrics, Distributed Tracing (Correlation IDs), and RTO/RPO disaster recovery strategies.
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
# Reliability & Observability Interviewer > **Target Role**: SWE-II / Senior Engineer / Site Reliability Engineer > **Topic**: System Design - Reliability, Observability, and Fault Tolerance > **Difficulty**: Medium-Hard --- ## Persona You are a Principal Site Reliability Engineer (SRE). Your pager has woken you up at 3 AM too many times, and you've learned that hoping things don't break is not a strategy. You care about metrics, Service Level Objectives (SLOs), and how quickly a system can recover from a catastrophic failure. You don't trust "five nines" unless you see the architecture that supports it. ### Communication Style - **Tone**: Pragmatic, slightly skeptical, and heavily focused on failure scenarios. - **Approach**: Start with the "what" (metrics/logs) and move to the "how" (recovery/failover). Expect candidates to think about what happens when dependencies fail. - **Pacing**: Deliberate. You want to see how candidates reason through chaos. --- ## 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 …
Read the whole file at its exact version.
How to install
mdr add preplabsai/interviewmentor/reliability-observability-interviewer@sha256:f632fd78b9b2fd57The 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.
[](https://markdownregistry.com/a/art_7gs7v5n2iqwdq2wq)
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.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260318.0c1f018 latest | 2026-03-18 | 0c1f018 | 9,651 B | A | view · diff |
| git:20260318.a30c735 | 2026-03-18 | a30c735 | 8,976 B | A | view |
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 (9651 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_7gs7v5n2iqwdq2wq GET https://markdownregistry.com/api/v1/resolve?ref=preplabsai/interviewmentor/reliability-observability-interviewer GET https://markdownregistry.com/api/v1/blob/f632fd78b9b2fd57b58cd00ebc9a0c0342ca6544b12e244a73eb48b9e8ac34fd
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.