coding-prep

A coding interview practice assistant that uses the developer's preferred programming language. It supports practice, tutoring, evaluation, timed mock interviews, and a shared problem bank.

In plain words
What is it for?
Use it to add or practise problems, run mock interviews, identify weak spots, or check which questions a company is reported to ask using an open-source question bank.
Why use it?
It provides a structured way to prepare for coding interviews and focus on areas where the developer is weaker.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/rish-modi/career-agent/coding-prep
Any agent
npx skills add Rish-Modi/career-agent --skill coding-prep
Clone the repo
git clone --depth 1 https://github.com/Rish-Modi/career-agent

Made for: Claude Code, Codex.

Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,221 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00000 $0.03221
Opus 5 $0.00000 $0.01611
Sonnet 5 $0.00000 $0.00644
Haiku 4.5 $0.00000 $0.00322

Measured yesterday against content hash 3b5ee9cd556a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

coding-prep 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 yesterday.

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.

.claude/skills/coding-prep/SKILL.md · 223 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. yesterday First seen · 223 lines · 0 tokens per session scan A 3b5ee9cd556a

Subscribe to this mod's changes

coding-prep is a skill published in the GitHub repository Rish-Modi/career-agent (2 stars, last pushed 2mo ago), with no licence file. It costs nothing until one of its globs matches a file; then it loads 3,221 tokens. 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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