javascript

A JavaScript and TypeScript development guide with coding conventions, common patterns, ecosystem practices, and language-server support. A language server provides code intelligence such as understanding symbols and types.

In plain words
What is it for?
Use it when implementing, reviewing, or refactoring JavaScript and TypeScript applications.
Why use it?
It gives agents consistent guidance for writing and changing JavaScript or TypeScript code across a project.

Plugin for Claude Code

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.

Claude Code
/plugin marketplace add xobotyi/cc-foundry
agentmods
npx agentmods add plugins/xobotyi/cc-foundry/javascript
Clone the repo
git clone --depth 1 https://github.com/xobotyi/cc-foundry

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

javascript 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 2d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

  • php — 86% identical, 17 lines differ
plugins/javascript/.claude-plugin/plugin.json · 21 lines

What it actually says

{
  "name": "javascript",
  "version": "1.2.8",
  "description": "JavaScript and TypeScript language discipline: conventions, patterns, ecosystem practices, and LSP-powered code intelligence",
  "lspServers": "./.lsp.json",
  "author": {
    "name": "xobotyi",
    "email": "[email protected]",
    "url": "https://github.com/xobotyi"
  },
  "homepage": "https://github.com/xobotyi/cc-foundry/tree/master/plugins/javascript",
  "repository": "https://github.com/xobotyi/cc-foundry",
  "license": "MIT",
  "keywords": [
    "javascript",
    "typescript",
    "conventions",
    "patterns"
  ]
}
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. 2d ago First seen · 21 lines scan A b58a93c8688a

Subscribe to this mod's changes

javascript is a plugin published in the GitHub repository xobotyi/cc-foundry (20 stars, last pushed 2d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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.