javascript for Claude Code

974 mods tagged javascript that install into Claude Code, measured the same four ways as everything else here: what each costs in tokens on every session, what a security scan found and why, whether it is the original, and what changed.

Also for Claude Code: anthropic · Git and workflow · Python · Web3 and blockchain · React · TypeScript · docker · Go · Rust · Localization · PostgreSQL · nextjs

ynab-mcp-server

49

oliverames/ynab-mcp-server

Plugin Claude Code

Bundles 1 MCP server

YNAB MCP connector for budgets, transactions, categories, scheduled transactions, accounts, months, payees, and budget review workflows.

not rated 35 +1 changed 21d ago A tokens not measured original MIT

akaszubski/autonomous-dev

Plugin Claude Code

Lists 1 plugin

PROJECT.md-first autonomous development with 22 specialized agents, 28 skills, and 66 automation hooks. Full SDLC automation via /implement command. Zero scope creep with automatic PROJECT.md validation. Works for Python, JavaScript, TypeScript, and Go projects.

not rated 34 2d ago A tokens not measured

ember-mcp

51

ember-tooling/ember-mcp

MCP server Claude CodeCodexCursor +2

MCP server for Ember.js documentation, guides, and best practices. Runs locally from the ember-mcp npm package.

not rated 28 yesterday A tokens not measured original MIT

mongodb-mcp-server

52

mongodb-developer/mongodb-mcp-server

MCP server Claude CodeCodexCursor +2

MongoDB MCP server for local mongodb queries. Runs locally from the @pash1986/mongodb-mcp-server npm package.

not rated 27 1y ago A tokens not measured archived

jsrip-scan

53

mouteee/jsrip

Skill Claude CodeCodex

Use when user asks to scan a target for exposed JavaScript secrets, run a jsrip scan, analyze findings for true/false positives, or says /jsrip-scan. Single-target bug bounty recon — runs jsrip then auto-classifies every finding.

not rated 27 +1 1mo ago A 57 tokens CC-BY-SA-4.0

audio

54

ChaosRealmsAI/NextFrame

Skill Claude CodeCodex

An audio workflow that turns text into speech, aligns the words with the recording, and creates files for synchronized karaoke-style subtitles.

not rated 24 5mo ago A 10 tokens original MIT

hidden-admin-auth

55

bishopZ/2026-Boilerplate

Skill Claude CodeCodex

Configure the private route as a hidden admin utility. Moves credentials to env vars; operator updates .env using .envTemplate instructions. No credentials passed to the skill.

not rated 24 2mo ago A 37 tokens original MIT

skalex

56

TarekRaafat/skalex

MCP server Claude CodeCodexCursor +2

MCP server "skalex" as configured in TarekRaafat/skalex. Runs /absolute/path/to/examples/mcp-agent-server/index.js with node. Needs 1 environment variable to run.

not rated 20 28d ago A tokens not measured original Apache-2.0

deepspider

57

ma-pony/deepspider

Skill Claude CodeCodex

Use when tracing browser requests, recovering JavaScript-generated request outputs, diagnosing anti-bot runtime gaps, or delivering independently verified scraping modules.

not rated 20 changed 17d ago A 32 tokens

audit-deps

58

FlorianBruniaux/node-dep-scope

Command Claude Code

Analyze project dependencies with dep-scope to identify optimization opportunities.

not rated 19 1mo ago A 0 tokens original MIT

gitbook-mcp-server

59

tcsenpai/mcpbook

MCP server Claude CodeCodexCursor +2

MCP server "gitbook-mcp-server" as configured in tcsenpai/mcpbook. Runs locally from the gitbook-mcp-server npm package.

not rated 19 1y ago A tokens not measured original MIT

claudiocebpaz/vite-react-best-practices

Skill Claude CodeCodex

Comprehensive React and Vite SPA performance, architecture, and deployment guidelines. Use this skill when building, reviewing, or refactoring React applications built with Vite (SPA). Covers Vite-specific build configurations, static hosting requirements, and core React performance patterns.

not rated 15 8mo ago A 59 tokens

mcp-mongodb-atlas

62

mongodb-developer/mcp-mongodb-atlas

MCP server Claude CodeCodexCursor +2

MCP Tool to operate and integrate MongoDB Atlas projects into an AI developed project. Runs locally from the mcp-mongodb-atlas npm package.

not rated 14 1y ago A tokens not measured original MIT archived

polygraph

63

cognitive-fab/polygraph

Plugin Claude Code

Bundles 6 skills, 5 commands, 4 agents, 1 plugin · 518 tokens together

A polygraph for your state machine. The agent does the hard part for you: it instruments your code, builds any test doubles needed to run it, and captures real execution traces — then has an LLM derive a transition-function spec from the source (default: a SAM v2 strict-profile module with named…

not rated 14 23d ago A tokens not measured original Apache-2.0

coolify

64

StuMason/coolify-mcp-server

MCP server Claude CodeCodexCursor +2

MCP server "coolify" as configured in StuMason/coolify-mcp-server. Runs locally from the @modelcontextprotocol/coolify npm package.

not rated 13 8mo ago A tokens not measured archived

whatiskadudoing/fp-ts-skills

Skill Claude CodeCodex

Master functional approaches to side effects including IO types, effect isolation, idempotent operations, and quarantining impure code - essential patterns for reliable TypeScript applications.

not rated 11 8mo ago A 38 tokens

fund-holding-viewer

66

whjin/fundscope

Skill Claude CodeCodex

A deployment guide for a Chinese fund-holdings analysis web app. It covers running the app on Alibaba Cloud ECS, a virtual server service, with HTTPS through either a subdomain or a path on an existing domain.

not rated 11 1mo ago A 77 tokens

agent-harness-kit

67

enmanuelmag/heimdall-mcp

MCP server Claude CodeCodexCursor +2

Another Handler Knex. Runs locally from the ahk npm package.

not rated 11 2mo ago A tokens not measured

JS Reverse Analyzer

68

sjhhh024-cmyk/Spider-JS-Mcp-Skills

Skill Claude CodeCodex

A general-purpose guide for examining JavaScript code to identify website encryption, request signatures, and anti-bot checks, then documenting the findings in Python.

not rated 10 8mo ago A 37 tokens original Apache-2.0

searoute

69

mayurrawte/searoute-ts

MCP server Claude CodeCodexCursor +2

Real shortest sea routes between ports: distance, canals/straits, GeoJSON. UN/LOCODE aware. Runs locally from the @searoute-ts/mcp npm package.

not rated 9 12d ago A tokens not measured original MIT

jest

70

anivar/jest-skill

Skill Claude Code

Jest best practices, patterns, and API guidance for JavaScript/TypeScript testing. Covers mock design, async testing, matchers, timer mocks, snapshots, module mocking, configuration, and CI optimization. Baseline: jest ^30.0.0. Triggers on: jest imports, describe, it, test, expect, jest.fn, jest.mock, jest.spyOn…

not rated 9 +1 1mo ago A 97 tokens original MIT

engram-memory

71

HBarefoot/engram

Skill Claude CodeCodex

Persistent cross-session memory via Engram's MCP tools (engramrecall, engramremember, engramcontext, engramfeedback, engramforget, engramstatus). Use this skill at the START of any session on a known project or with a known user — recall before acting. Also use it whenever the user states a preference, makes a…

not rated 8 3mo ago A 152 tokens original MIT

lizard

72

lizard-build/lizard-studio

Skill Claude Code

Entry point for deploying and managing apps on Lizard via the lizard CLI (npm @lizard-build/cli). This is a thin bootstrap: it loads the full, version-matched usage guide from the CLI itself, installing the CLI only when needed. Covers the whole app lifecycle (login, init, link, add, up, redeploy, logs, status, scale…

not rated 7 today A SkillSpector: warn 200 tokens original MIT

At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: