mock-interviewer

mock-interviewer is a skill for Claude Code from younnieCutler/japan-career-agent. It costs 129 tokens per session (2,783 once invoked), scanned A, original, MIT.

A practice interview that acts like Japanese interviewers at technical, human-resources, and executive stages. It asks 深掘り questions, meaning adaptive follow-up questions that probe a claim in depth.

In plain words
What is it for?
Use it to rehearse Japanese interviews, test STAR stories, find unsupported metrics, and identify answers that sound insincere or conflict with your prepared rules.
Why use it?
It exposes résumé claims, achievements, reasons for leaving, or motivations that a real interviewer might challenge.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is python skills/career-agent/career_agent.py evidence-pool --vault "$CAREER_VAULT".

Part of the japan-career-agent plugin — 18 skills, 1 hook shipped together

Good fit Use it to rehearse Japanese interviews, test STAR stories, find unsupported metrics, and identify answers that sound insincere or conflict with your prepared rules.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/younnieCutler/japan-career-agent
agentmods
npx agentmods add skills/younniecutler/japan-career-agent/mock-interviewer

Made for: Claude Code.

Or install japan-career-agent, the plugin that ships this one along with the rest of its 18 skills, 1 hook.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for mock-interviewer

README.md
[![agentmods](https://agentmods.dev/badge/skills/younniecutler/japan-career-agent/mock-interviewer/github.svg)](https://agentmods.dev/skills/younniecutler/japan-career-agent/mock-interviewer)
Your own site
<a href="https://agentmods.dev/skills/younniecutler/japan-career-agent/mock-interviewer"><img src="https://agentmods.dev/badge/skills/younniecutler/japan-career-agent/mock-interviewer/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for mock-interviewer

Your own site · 80×15
<a href="https://agentmods.dev/skills/younniecutler/japan-career-agent/mock-interviewer"><img src="https://agentmods.dev/badge/skills/younniecutler/japan-career-agent/mock-interviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 129 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,783 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00129 $0.02783
Opus 5 $0.00064 $0.01392
Sonnet 5 $0.00026 $0.00557
Haiku 4.5 $0.00013 $0.00278

Measured today against content hash a7b3594fd8b9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

mock-interviewer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.

The scan reads SKILL.md. This mod also ships 1 executable file (tests/test_contract.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/mock-interviewer/SKILL.md · 241 lines

How it starts

The opening of the file, as written. The whole thing — 241 lines — stays where its author put it; the contents beside it link to each section on GitHub.

mock-interviewer — Japanese Interview Stress-Test Agent

Overview

This skill acts as a realistic, critical Japanese interviewer. It tests whether a candidate can defend their resume, 退職理由, 志望動機, and achievements through standard Japanese 深掘り (adaptive deep-dive questioning).

The goal is not to encourage, but to find weak points, undefendable metrics, and "AI-generated Tatemae" before a real interviewer catches them.


Execution Gate (check before starting a session)

If <career_status> reports unchecked action items for the company being practised for, do not run the mock interview yet. Show the items and ask the user to complete them first (python3 scripts/check_action.py <slug> <id>). Practising around an unfinished checklist rehearses the same gap the checklist was written to close.

Read data/rules.yml if present. Any status: active rule is a phrase the user has already decided never to say — treat a violation during practice as a finding, quoting the rule verbatim.

When CAREER_VAULT is set, read confirmed career_context from career-agent context before practice. Otherwise read data/self_analysis_profile.yml only when career_context_confirmed: true. Missing or unconfirmed context is not a reason to invent a value; continue with facts the user states in-session.

Ground the practice in confirmed evidence

python skills/career-agent/career_agent.py evidence-pool --vault "$CAREER_VAULT"

That returns confirmed work events grouped under their projects. When the user is practising for a specific company, data/pipeline.yml already records what they chose to lead with — primary_project_ids, primary_experience_ids, supporting_experience_ids. Build the questions around those: the point of practice is the answer they will actually give.

Ask about what is recorded. "이 프로젝트에서 본인이 직접 한 일은?" is a question the evidence can answer; a question about a project they never recorded only teaches them to improvise.

The same rules apply here as anywhere else evidence is reused:

Read the full file on GitHub · 241 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. today Changed · +19 lines a7b3594fd8b9
  2. 12d ago First seen · 222 lines · 129 tokens per session scan A 20591605958d

Subscribe to this mod's changes

mock-interviewer is a skill published in the GitHub repository younnieCutler/japan-career-agent (6 stars, last pushed today), licensed MIT. It adds 129 tokens to every session and 2,783 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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