arcjet SKILL.md skillA
arcjet from arcjet/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add arcjet/skills/arcjet@git:20261007.436bacaPins git:20261007.436baca in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- arcjet/skills
- Path
arcjet/SKILL.md- Versions recorded
- 12
- Latest version
- git:20261007.436baca, committed Oct 7, 2026
- First version recorded
- Sep 3, 2026
- Size
- 25,213 bytes
- Repository stars
- 4
- License
- Apache-2.0
Add Arcjet security protection to HTTP routes, AI agent tool calls, MCP servers, background jobs, and queue workers. Covers rate limiting, bot detection, email validation, prompt injection, sensitive information blocking (including Rampart NER), content moderation, capture/flush, remote Guard policies, typed inputs, and abuse prevention. Works in JavaScript/TypeScript, Python, and Go. HTTP frameworks share this skill. JS Guard adapters that ship on npm are per-adapter reference files loaded…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Arcjet ## Contents - [Add Arcjet protection to your app](#add-arcjet-protection-to-your-app) - [Choose protections](#choose-protections) - [Resources](#resources) Python Guard adapters for LangChain, CrewAI, OpenAI Agents, Claude Agent SDK, Claude Managed Agents, Strands Agents, and Google ADK are dedicated skills (see Step 3). JS Guard adapters that ship on npm are per-file references under `references/guards_js_*.md`. JS Cloudflare Think is a dedicated skill (published `@arcjet/guard` plus peer `@cloudflare/think`). Shared fundamentals stay in [references/guards_javascript.md](references/guards_javascript.md) and [references/guards_python.md](references/guards_python.md). ## Add Arcjet protection to your app ### Checklist - [ ] **Step 1:** Verify language support (JS/TS, Python, or Go only – stop if unsupported) - [ ] **Step 2:** Connect to Arcjet platform (CLI → MCP → manual Console setup) - [ ] **Step 3:** Detect protection type and read the appropriate reference file - [ ] **Step 4:** Implement protection (separate client file, correct SDK, correct patterns) - [ ] **Step 5:** Verify decisions are firing correctly (trigger a real call, then check CLI / MCP / Console) …
Read the whole file at its exact version.
How to install
mdr add arcjet/skills/arcjet@sha256:272d4db555a4eae9The line at the top of this page pins the label git:20261007.436baca, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_pah2gtcdkstogjr7)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 12 versions of this file, between Sep 3, 2026 and Oct 7, 2026, about one every 3 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261007.436baca latest | 2026-10-07 | 436baca | 25,213 B | A | view · diff |
| git:20261001.aa53686 | 2026-10-01 | aa53686 | 25,121 B | A | view · diff |
| git:20260922.4ae5d84 | 2026-09-22 | 4ae5d84 | 24,720 B | A | view · diff |
| git:20260917.b9606c2 | 2026-09-17 | b9606c2 | 23,653 B | A | view · diff |
| git:20260917.c7bc1bb | 2026-09-17 | c7bc1bb | 23,056 B | A | view · diff |
| git:20260917.7d0b141 | 2026-09-17 | 7d0b141 | 23,039 B | A | view · diff |
| git:20260917.8287f83 | 2026-09-17 | 8287f83 | 22,647 B | A | view · diff |
| git:20260916.f8959e1 | 2026-09-16 | f8959e1 | 21,936 B | A | view · diff |
| git:20260904.d9aadab | 2026-09-04 | d9aadab | 21,397 B | A | view · diff |
| git:20260904.9787491 | 2026-09-04 | 9787491 | 23,061 B | A | view · diff |
| git:20260903.677f177 | 2026-09-03 | 677f177 | 36,459 B | A | view · diff |
| git:20260903.ce243a3 | 2026-09-03 | ce243a3 | 42,954 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (25213 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
arcjet/skills · 4 stars · license Apache-2.0 · pushed 2026-10-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_pah2gtcdkstogjr7 GET https://markdownregistry.com/api/v1/resolve?ref=arcjet/skills/arcjet GET https://markdownregistry.com/api/v1/blob/272d4db555a4eae9524474738a36447430aa0e3085a1d3a624d7c0294ac9fce7
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.