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.
npx agentmods add instructions/ascherj/neetcode-250-guide/claude-mdgit clone --depth 1 https://github.com/ascherj/neetcode-250-guideWrote 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.
[](https://agentmods.dev/instructions/ascherj/neetcode-250-guide/claude-md)<a href="https://agentmods.dev/instructions/ascherj/neetcode-250-guide/claude-md"><img src="https://agentmods.dev/badge/instructions/ascherj/neetcode-250-guide/claude-md.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00685 | $0.00685 |
| Opus 5 | $0.00342 | $0.00342 |
| Sonnet 5 | $0.00137 | $0.00137 |
| Haiku 4.5 | $0.00068 | $0.00068 |
Grade A, and why
neetcode-250-guide CLAUDE.md 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 4d ago.
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.
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.
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.
- 4d ago First seen · 72 lines · 685 tokens per session scan A b94fbc403ba1
neetcode-250-guide CLAUDE.md is an instructions file published in the GitHub repository ascherj/neetcode-250-guide (45 stars, last pushed 1y ago), with no licence file. It adds 685 tokens to every session, about $0.0034 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 2026-08-30.
Other instructions, from other repositories
battle-tested-patterns CLAUDE.md
Claude Code instructions for Totoro-jam/battle-tested-patterns, covering battle tested patterns, project overview, quality red lines, source link standard and pattern file template.
swe-interview-coach CLAUDE.md
Claude Code instructions for kirilxd/swe-interview-coach, covering claude.md, what this is, commands, develop the plugin locally (loads this dir as a plugin) and syntax-check the scripts before committing.
algorithms CLAUDE.md
Instructions for microwind/algorithms, covering claude.md, 仓库定位, 架构, 一种语言一个文件，每个算法平铺存放 and 每个文件都是完整可运行的演示.
battle-tested-patterns AGENTS.md
AGENTS.md instructions for Totoro-jam/battle-tested-patterns, a project described as: Battle-tested programming patterns from production codebases — React, Linux, Go, Chromium, and more. Precise source links, multi-language examples, runnable exercises.
Tutorial_AwesomeModernCPP AGENTS.md
AGENTS.md instructions for Awesome-Embedded-Learning-Studio/Tutorial_AwesomeModernCPP, covering agents.md, 这是什么, 通用 essentials(所有 agent 必读) and 你来做什么?(按场景路由).
open-dictionary AGENTS.md
Instructions for ahpxex/open-dictionary, covering open dictionary rewrite charter, product framing, core workflow, technical framework and 1. raw ingestion layer.