Interview System Designer Agent Skill

Design calibrated interview loops, competency-based question banks, and hiring calibration.

Context cost
35.6k tokensestimated from the bundle, loaded when it triggers
Bundle
16 files · 302.7 kB3 scripts among them — read before you run
Licence
MIT + Commons Clausethe author’s own terms
Last change
—v1.1.0
Servers it uses
Noneruns standalone

What it does

Design calibrated interview loops, competency-based question banks, and hiring calibration. Use when designing interview processes, creating hiring pipelines, generating scoring rubrics, analyzing interviewer bias, or building question banks.

What this skill changes about the agent has not been set out here as a list. Its SKILL.md, shown below, says it in the author’s own words.

collaboration

The skill itself

A skill is instructions the model reads, so you can see what you are getting: below is the start of its SKILL.md. The front matter loads with every session, the body loads when the skill triggers, and the whole file comes with the install.

SKILL.md6.9 kB · preview
--- name: interview-system-designer license: MIT + Commons Clause metadata: version: 1.1.0 author: borghei category: engineering updated: 2026-06-17 ---
14# Interview System Designer
15
16Design role-specific interview loops, generate competency-based question banks with scoring rubrics, and detect interviewer bias through statistical calibration analysis.
17
18## Core Capabilities
19
20- **Interview loop design** — role/level/team-specific loops with rounds, time allocations, interviewer skill requirements, and scorecard templates.
21- **Question bank generation** — competency-based questions with 1-4 scoring rubrics, follow-up probes, and poor/good/great calibration examples.
22- **Hiring calibration** — statistical bias and drift detection across interviewers and time periods, with coaching recommendations.
23- **Scoring & benchmarks** — 4-point rubric, target score distribution (20/40/30/10), interviewer-consistency and pass-rate benchmarks.
24- **Loop templates** — junior/senior/staff+ engineering loops plus sample questions by level and STAR behavioral prompts.
25- **Bias guardrails** — anti-pattern catalog (halo effect, similarity bias, unstandardized loops) and mitigation practices.
26
27## When to Use
28
29- Designing an interview process or end-to-end hiring pipeline for any seniority level.
30- Building a competency-based question bank with scoring rubrics.
31- Generating scorecards, debrief guides, or interviewer assignments.
32- Analyzing interviewer bias or calibration drift across candidates and time.
33
This is a preview of SKILL.md. Download or install the skill to get the whole thing.
In the file
SKILL.md854 words
Files16
LicenceMIT + Commons Clause
Why you can read it

Nothing in a skill executes. The client loads the text and the model follows it, so a skill can be audited the way a runbook is — by reading it.

What it costs in context

Skills are not billed by the call. They are paid for in context: every token the instructions occupy is a token your code, your diff and your conversation cannot use. Here is what this one takes and when it takes it.

≈110
always loaded
The name and description, so the model knows the skill exists and when to reach for it.
35,465
on trigger
The instruction body and 15 supporting files, read only when the skill fires.
17.8%
of a 200k window
Ten skills this size would not fit in the window together.
050k100k150k200k context window

35.6k tokens, estimated from the bundle at four bytes to the token, held for the rest of the session once it triggers. Heavy. Teams tend to install this one per project rather than globally, and load it only when the job comes up.

Servers bill, skills cost

A server charges by the month. A skill charges once per session, in context, and then keeps charging it for as long as the session lives.

Before and after

The same question, put to the same model twice: once as it comes, and once with these instructions loaded.

No worked example has been published for this skill yet.

The procedure it runs

The procedure has not been set out here step by step. It is in the body of its SKILL.md: the start of it is shown above, and the whole file comes with the install.

Prose, not code

These steps are written for a model to follow, not executed by a runtime. It can still be told to skip one, and it will say so when it does.

Servers it uses

None. This skill calls no MCP servers at all.

Everything it needs is in the instructions, so it works in a project with nothing connected — the model reads the file and changes how it works with what it can already reach.

Its SKILL.md does not declare which tools it asks the agent for, so what it touches is whatever the instructions themselves ask for — read them before you install it.

What it asks for
Writes filesnot declared
Network accessnot declared

This SKILL.md carries no allowed-tools line, so neither is declared. A skill grants no permissions of its own — it can only ask for tools your client already has.

What it will not do

Every skill is narrow, and the useful ones say where they stop. These are the jobs this one is the wrong tool for.

What this skill is not for has not been published here. Nothing is implied by that: it is a section the author has not filled in.

What is in the bundle

16 files, 302.7 kB on disk. Mostly text — the instructions the model reads — with 3 scripts in it that your client would run only if the instructions tell it to.

  • SKILL.md6.9 kB
  • README.md11.7 kB
  • hiring_calibrator.py62.1 kB
  • loop_designer.py45.7 kB
  • question_bank_generator.py52.6 kB
  • assets/sample_interview_results.json10.6 kB
  • assets/sample_role_definitions.json5.0 kB
  • expected_outputs/product_manager_senior_questions.json23.3 kB
  • expected_outputs/product_manager_senior_questions.txt6.9 kB
  • expected_outputs/senior_software_engineer_senior_interview_loop.json12.0 kB
  • expected_outputs/senior_software_engineer_senior_interview_loop.txt4.3 kB
  • references/bias_mitigation_checklist.md15.8 kB
  • references/competency_matrix_templates.md16.6 kB
  • references/debrief_facilitation_guide.md15.1 kB
  • references/tool-reference.md8.6 kB
  • references/workflows-and-templates.md5.5 kB
What is not in it

A skill installs nothing and depends on nothing: it is a folder your client reads. This one carries 3 scripts beside the text, so the bundle is 16 files you can review in full before installing. The MIT + Commons Clause licence covers the templates and examples as well as the instructions.

Install

Installing copies the bundle into your project. Nothing runs at install time — the files sit on disk until the model reads them.

# Interview System Designer · 35.6k tokens when loaded · macOS, Linux mkdir -p .claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/borghei-interview-system-designer/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/interview-system-designer" ] && { [ ! -e .claude/skills/interview-system-designer ] || { mv .claude/skills/interview-system-designer "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/interview-system-designer" .claude/skills/ && echo "Installed .claude/skills/interview-system-designer"
On Windows, or any OS with Node 20+
npx mcprush@latest skill add borghei/interview-system-designer

Windows PowerShell says 'running scripts is disabled on this system'? Run Set-ExecutionPolicy -Scope CurrentUser RemoteSigned once, or type npx.cmd instead of npx (codex.cmd, gemini.cmd, grok.cmd likewise). PowerShell 7 needs neither. Writes to .claude/skills/interview-system-designer/ in the current project. For every project instead, run mkdir -p ~/.claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/borghei-interview-system-designer/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/interview-system-designer" ] && { [ ! -e ~/.claude/skills/interview-system-designer ] || { mv ~/.claude/skills/interview-system-designer "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/interview-system-designer" ~/.claude/skills/ && echo "Installed ~/.claude/skills/interview-system-designer" (macOS, Linux) — or add --global to the npx line. The curl line replaces .claude/skills/interview-system-designer/ only after the download succeeds, so files left there by another skill of the same name, or by an older release, do not mix in. A copy already there is moved aside, not deleted, and the line prints where.

Which clients pick it up on their own

A skill is a folder of text. Most of these read a skills folder and pick it up without being told; the rest take the same folder another way — an upload in the app, a parameter on an API call — and then choose it by its description just the same.

Claude Code.claude/skills/
Claude DesktopCustomize › Skills
ChatGPTSkills › Create › Upload
Cursor.cursor/skills/
VS Code.github/skills/
Codex CLI.agents/skills/
Gemini CLI.gemini/skills/
Grok Build.grok/skills/
Microsoft CopilotSkills › Upload a skill
PerplexityComputer › Skills › Upload a skill
DeepSeek Harness.dsh/skills/
Zed.agents/skills/
Devin Desktop.devin/skills/
Windsurf (legacy).windsurf/skills/
OpenAI Agents SDKInstructions or sandbox Skills
HTTP / APIa request parameter
This release
Version1.1.0
Publishedno release date on file
PriceFree
Referenceborghei/interview-system-designer

Versions

v1.1.0 is what is on the shelf; no release here carries a date. Instructions change more often than APIs do — a skill can be rewritten entirely without anything it depends on moving.

v1.1.0
  • No earlier releases have been published to the marketplace.
Pinning

The install command always fetches the release that is current the day you run it — v1.1.0 today — and cannot ask for an earlier one. The copy on your disk does not change until you run it again.

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