Career-Ops Job Search Center
career-ops-hq/career-ops
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A specialized skill for systematically supporting developer technical interview preparation.
Install Tech Interview Prep
$ npx skills add revfactory/harness-100 --skill tech-interview-prep -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install revfactory/harness-100 tech-interview-prep --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .claude/skills && cp -r skills-src/en/59-coding-bootcamp/.claude/skills/tech-interview-prep .claude/skills/tech-interview-prep && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "tech-interview-prep" agent skill from https://github.com/revfactory/harness-100/tree/main/en/59-coding-bootcamp/.claude/skills/tech-interview-prep into .claude/skills/tech-interview-prep/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tech-interview-prep", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/revfactory/harness-100/tree/main/en/59-coding-bootcamp/.claude/skills/tech-interview-prepType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add revfactory/harness-100 --skill tech-interview-prep -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install revfactory/harness-100 tech-interview-prep --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .agents/skills && cp -r skills-src/en/59-coding-bootcamp/.claude/skills/tech-interview-prep .agents/skills/tech-interview-prep && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "tech-interview-prep" agent skill from https://github.com/revfactory/harness-100/tree/main/en/59-coding-bootcamp/.claude/skills/tech-interview-prep into .agents/skills/tech-interview-prep/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tech-interview-prep", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add revfactory/harness-100 --skill tech-interview-prep -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install revfactory/harness-100 tech-interview-prep --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/en/59-coding-bootcamp/.claude/skills/tech-interview-prep .cursor/skills/tech-interview-prep && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "tech-interview-prep" agent skill from https://github.com/revfactory/harness-100/tree/main/en/59-coding-bootcamp/.claude/skills/tech-interview-prep into .cursor/skills/tech-interview-prep/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tech-interview-prep", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/revfactory/harness-100.git --path en/59-coding-bootcamp/.claude/skills/tech-interview-prep--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add revfactory/harness-100 --skill tech-interview-prep -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install revfactory/harness-100 tech-interview-prep --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/en/59-coding-bootcamp/.claude/skills/tech-interview-prep .gemini/skills/tech-interview-prep && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "tech-interview-prep" agent skill from https://github.com/revfactory/harness-100/tree/main/en/59-coding-bootcamp/.claude/skills/tech-interview-prep into .gemini/skills/tech-interview-prep/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tech-interview-prep", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install revfactory/harness-100 tech-interview-prepInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add revfactory/harness-100 --skill tech-interview-prep -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .github/skills && cp -r skills-src/en/59-coding-bootcamp/.claude/skills/tech-interview-prep .github/skills/tech-interview-prep && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "tech-interview-prep" agent skill from https://github.com/revfactory/harness-100/tree/main/en/59-coding-bootcamp/.claude/skills/tech-interview-prep into .github/skills/tech-interview-prep/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tech-interview-prep", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add revfactory/harness-100 --skill tech-interview-prep -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install revfactory/harness-100 tech-interview-prep --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/en/59-coding-bootcamp/.claude/skills/tech-interview-prep .opencode/skills/tech-interview-prep && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "tech-interview-prep" agent skill from https://github.com/revfactory/harness-100/tree/main/en/59-coding-bootcamp/.claude/skills/tech-interview-prep into .opencode/skills/tech-interview-prep/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tech-interview-prep", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
tech-interview-prep- GitHub stars
- 1.3k
- Token cost
- ~1.2k tokens
- SKILL.md length
- 284 words
- Files
- 1
- Skills in repo
- 464
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
A specialized skill for systematically supporting developer technical interview preparation.
- Works in 3 steps: Coding Interview → System Design Interview → Behavioral Interview
- Tasks that involve Interview preparation
- SKILL.md covers Target Agent, Three Pillars of Technical…, Portfolio-to-Interview… and Interview Preparation Checklist
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Tech Interview Prep is an agent skill from revfactory/harness-100. A specialized skill for systematically supporting developer technical interview preparation. Used by the mentor agent to prepare portfolio-based interview strategies, system design interviews, and behavioral interviews (STAR). Automatically applied in contexts such as 'technical interview', 'coding interview', 'system design', 'STAR interview', 'behavioral interview', 'developer interview prep'. However, conducting live mock interviews and providing company internal information are outside the scope of this skill.
Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Business, Finance & HR, covering Interview preparation. The licence is Apache-2.0.
When your agent uses it
- Tasks that involve Interview preparation
Example prompts
- “technical interview”
- “coding interview”
- “system design”
- “/tech-interview-prep”
Workflow steps
3 steps, taken from the step headings in SKILL.md.
What it can do on your machine
Read from SKILL.md and the folder at commit 8e8d35c. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Tech Interview Prep loads about 1.2k tokens when it runs. Until then it costs about 135 tokens; SKILL.md has 284 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from revfactory/harness-100 at commit 8e8d35c, republished under its Apache-2.0 licence (© revfactory). 284 words, ~1,222 tokens.
Download SKILL.mdSave it as
.claude/skills/tech-interview-prep/SKILL.md (or your agent's skills folder).- name
- tech-interview-prep
- description
- A specialized skill for systematically supporting developer technical interview preparation. Used by the mentor agent to prepare portfolio-based interview strategies, system design interviews, and behavioral interviews (STAR). Automatically applied in contexts such as 'technical interview', 'coding interview', 'system design', 'STAR interview', 'behavioral interview', 'developer interview prep'. However, conducting live mock interviews and providing company internal information are outside the scope of this skill.
Tech Interview Prep — Developer Technical Interview Preparation Tool
A specialized skill that enhances the mentor agent's interview preparation support capabilities.
Target Agent
- mentor — Project design, portfolio, career coaching
Three Pillars of Technical Interviews
1. Coding Interview
Key Topics and Frequency
| Topic | Frequency | Essential Patterns |
|---|---|---|
| Arrays/Strings | Very high | Two Pointers, Sliding Window |
| Hash Maps | High | Frequency counting, grouping |
| Trees/Graphs | High | DFS, BFS, shortest path |
| DP | Medium | Top-down, Bottom-up |
| Stacks/Queues | Medium | Monotone stack, BFS |
| Binary Search | Medium | Parametric Search |
Problem-Solving Framework (UMPIRE)
U - Understand: Fully understand the problem (ask about edge cases)
M - Match: Match to known patterns
P - Plan: Write pseudocode
I - Implement: Write the code
R - Review: Code review + time/space complexity analysis
E - Evaluate: Run test cases + discuss optimization2. System Design Interview
Approach Framework (4 Steps)
[Step 1] Requirements Definition (5 min)
- Functional requirements (3-5 core features)
- Non-functional requirements (DAU, QPS, latency, availability)
- Scale estimation (Back-of-the-envelope estimation)
[Step 2] High-Level Design (10 min)
- Core component diagram
- API design (RESTful endpoints)
- Data model (schema design)
[Step 3] Detailed Design (15 min)
- Identify and resolve bottlenecks
- Scalability strategy (horizontal/vertical scaling)
- Caching, messaging, CDN, etc.
[Step 4] Trade-off Discussion (5 min)
- CAP theorem-based rationale
- Comparison with alternatives
- Monitoring/failure responseKey System Design Topics
| Topic | Key Points | Difficulty |
|---|---|---|
| URL Shortener | Hash functions, collision handling, redirect | Beginner |
| Rate Limiter | Token Bucket, distributed counters | Beginner |
| Chat System | WebSocket, message queues, read receipts | Intermediate |
| News Feed | Fan-out, caching, ranking | Intermediate |
| Search Engine | Inverted index, distributed crawling | Advanced |
| Video Streaming | CDN, adaptive bitrate, transcoding | Advanced |
3. Behavioral Interview
STAR Framework
S - Situation: Describe the background/context (briefly)
T - Task: Your role/assignment (specifically)
A - Action: Actions taken (why + how)
R - Result: Outcomes (quantitative + lessons learned)Key Question Types and Preparation Points
| Question Type | Example | Answer Focus |
|---|---|---|
| Technical challenge | "Tell me about a difficult bug you solved" | Debugging process, systematic approach |
| Conflict resolution | "Describe a disagreement with a teammate" | Active listening, data-driven persuasion |
| Leadership | "Tell me about leading a team" | Goal setting, motivation |
| Failure experience | "What did you learn from a failure?" | Self-awareness, growth |
| Prioritization | "How do you handle multiple tasks?" | Time management, decision criteria |
Portfolio-to-Interview Connection Strategy
Project Presentation Framework
### Project: [Project Name]
**Tech stack**: [Technologies used]
**Duration**: [Duration]
**Team size**: [N people, your role]
**Why did you choose this technology?**
-> [Alternatives compared + selection rationale]
**What was the most difficult technical challenge?**
-> [Problem -> attempts -> solution -> outcome]
**What would you do differently if you did it again?**
-> [Self-reflection + evidence of growth]
**Quantitative outcomes:**
-> [Performance improvement %, user count, code quality metrics]Interview Preparation Checklist
Coding Interview (2-4 weeks before)
- Solve 2-3 problems for each of the 20 core patterns
- Practice under time constraints (45 min/problem)
- Practice explaining thought process out loud
System Design (1-2 weeks before)
- Practice designing 6-8 major systems
- Practice back-of-the-envelope calculations
- Prepare trade-off discussions
Behavioral Interview (1 week before)
- Prepare 5-7 STAR stories
- Prepare in-depth presentations on 3 projects
- Research each company's culture/values
© revfactory, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in en/59-coding-bootcamp/.claude/skills/tech-interview-prep of revfactory/harness-100.
Open the folder on GitHubat commit 8e8d35c
Compare with similar skills
Tech Interview Prep next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Tech Interview Prep this skillrevfactory/harness-100 | 1.3k | — | ~1.2k | Automated safety check: Pass | Apache-2.0 | |
| Career-Ops Job Search Centercareer-ops-hq/career-ops | 74k | — | ~3.3k | Automated safety check: Pass | MIT | |
| Internship Project Preparation ToolLiuMengxuan04/shushu-internship-tool | 2.1k | — | ~2.3k | Automated safety check: Pass | Custom licence | |
| Interview Coachnoamseg/interview-coach-skill | 2.3k | — | ~3.7k | Automated safety check: Pass | MIT | |
| Job Application AssistantMadsLorentzen/ai-job-search | 45k | — | ~1.2k | Automated safety check: Notes | MIT | |
| Algo Senseikaranb192/algo-sensei | 284 | — | ~1.7k | Automated safety check: Pass | MIT |
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Related
Categories
Questions about Tech Interview Prep
What does Tech Interview Prep do?
A specialized skill for systematically supporting developer technical interview preparation. Tech Interview Prep is an agent skill from revfactory/harness-100. A specialized skill for systematically supporting developer technical interview preparation.
When should I use Tech Interview Prep?
Tech Interview Prep fits situations like: tasks that involve Interview preparation.
How do I install Tech Interview Prep in Claude Code?
Run `npx skills add revfactory/harness-100 --skill tech-interview-prep -a claude-code`. Or copy the skill folder (en/59-coding-bootcamp/.claude/skills/tech-interview-prep in revfactory/harness-100) into .claude/skills/tech-interview-prep in your project. Claude Code loads it when a task matches its description.
How do I install Tech Interview Prep in Codex?
Run `npx skills add revfactory/harness-100 --skill tech-interview-prep -a codex`. Or copy the skill folder (en/59-coding-bootcamp/.claude/skills/tech-interview-prep in revfactory/harness-100) into .agents/skills/tech-interview-prep in your project. Codex loads it when a task matches its description.
Can I use Tech Interview Prep in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add revfactory/harness-100 --skill tech-interview-prep -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/tech-interview-prep, .gemini/skills/tech-interview-prep, .github/skills/tech-interview-prep and .opencode/skills/tech-interview-prep in your project.
What does Tech Interview Prep need to run?
SKILL.md names no scripts, command-line tools or credentials: Tech Interview Prep is instructions for the agent only.
Does Tech Interview Prep access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Tech Interview Prep safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Tech Interview Prep use?
Tech Interview Prep is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Tech Interview Prep use?
About 1.2k tokens (SKILL.md is roughly 4.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Tech Interview Prep?
Skills that share tags, products or a category with Tech Interview Prep: Career-Ops Job Search Center (career-ops-hq/career-ops, 74k stars), Internship Project Preparation Tool (LiuMengxuan04/shushu-internship-tool, 2.1k stars), Interview Coach (noamseg/interview-coach-skill, 2.3k stars) and Job Application Assistant (MadsLorentzen/ai-job-search, 45k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Tech Interview Prep?
revfactory (a GitHub user) maintains it in revfactory/harness-100, which has 1,290 GitHub stars. The repository holds 464 skills in this directory. The repository was last updated on March 22, 2026.
Source: revfactory/harness-100 on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.