Node Modules Inspector is an interactive interface for visualizing a project's installed JavaScript packages and inspecting their dependencies. It is for developers working with pnpm, npm, or bun projects, and it also provides machine-readable reports and MCP tools for AI coding agents. Catalogue add-ons can use those reports and MCP tools to inspect project dependencies.
Borrowing it
Nothing to install: this file belongs to antfu/node-modules-inspector. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/antfu/node-modules-inspector/main/AGENTS.mdgit clone --depth 1 https://github.com/antfu/node-modules-inspectorWrote 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/antfu/node-modules-inspector/agents-md)<a href="https://agentmods.dev/instructions/antfu/node-modules-inspector/agents-md"><img src="https://agentmods.dev/badge/instructions/antfu/node-modules-inspector/agents-md/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.
<a href="https://agentmods.dev/instructions/antfu/node-modules-inspector/agents-md"><img src="https://agentmods.dev/badge/instructions/antfu/node-modules-inspector/agents-md.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00354 | $0.00354 |
| Opus 5.5 | $0.00142 | $0.00142 |
| Sonnet 5.5 | $0.00071 | $0.00071 |
| Haiku 4.5 | $0.00035 | $0.00035 |
Grade A, and why
node-modules-inspector AGENTS.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 2mo 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.
What it actually says
AGENTS.md
CLI + web UI to visualize a project's node_modules. Supports pnpm, npm, bun. Hosted version: node-modules.dev.
Layout
packages/node-modules-inspector/— CLI + Nuxt SPA + devframe RPC serverpackages/node-modules-tools/— core lib: package-manager agents, resolution, typestest/e2e/— Playwright
RPC functions live in packages/node-modules-inspector/src/node/rpc/<name>.ts — one per file, wired up in handlers.ts.
Commands (from repo root)
pnpm dev— dev serverpnpm build— full buildpnpm test/pnpm test:e2e/pnpm test:a11y— vitest / playwright e2e / playwright accessibility (axe-core)pnpm lint/pnpm typecheck
Conventions
- TypeScript only. Vue 3 Composition API +
<script setup lang="ts">. - pnpm 11 with catalogs — new deps go in
pnpm-workspace.yaml, referenced ascatalog:<name>. - Lint:
@antfu/eslint-config. Pre-commit runseslint --fixvia nano-staged. - Commits: conventional, optional scope —
feat(inspector): ...,fix: .... AGENTS.mdis the source of truth;CLAUDE.mdis a symlink to it.- E2E runs single-worker (stateful WS backend) — don't parallelize.
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.
- 2mo ago First seen · 28 lines · 354 tokens per session scan A 560626d109f5
node-modules-inspector AGENTS.md is an instructions file published in the GitHub repository antfu/node-modules-inspector (2,960 stars, last pushed 1mo ago), licensed MIT. It adds 354 tokens to every session, about $0.0014 per session on Opus 5.5. 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.
node-modules-inspector AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| node-modules-inspector AGENTS.mdantfu/node-modules-inspector | Instructions file | 3.0k | 1mo ago | MIT | A | 354 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |