typescript-security SKILL.md skillA
typescript-security from jim60105/copilot-prompt is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jim60105/copilot-prompt/typescript-security@git:20260928.6911cf8Pins git:20260928.6911cf8 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jim60105/copilot-prompt
- Path
skills/typescript-security/SKILL.md- Versions recorded
- 4
- Latest version
- git:20260928.6911cf8, committed Sep 28, 2026
- First version recorded
- Mar 22, 2026
- Size
- 15,333 bytes
- Repository stars
- 22
- License
- GFDL-1.3
Guideline for designing, implementing, and verifying secure TypeScript and JavaScript applications following OWASP Top 10 best practices. Use when the user wants to: (1) review TypeScript or JavaScript code for security vulnerabilities, (2) design a secure Node.js, Deno, or browser application architecture, (3) implement security features (authentication, authorization, cryptography, input validation), (4) audit npm/yarn/pnpm dependencies for known vulnerabilities, (5) create security…
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
# TypeScript / JavaScript Security Development Guide Provide a structured approach to building secure TypeScript and JavaScript applications, covering the OWASP Top 10, secure coding patterns, and verification checklists. Apply these guidelines throughout the secure development lifecycle — from threat modeling through deployment. This guide covers both server-side (Node.js, Deno, Bun) and client-side (browser) contexts. ## Secure Development Lifecycle ### Phase 1: Threat Modeling and Secure Design Before writing code, identify and mitigate threats at the design level: - **Identify trust boundaries** — Map where untrusted data enters the system (HTTP requests, WebSocket messages, file uploads, database reads, environment variables, third-party APIs, `postMessage`, URL parameters, localStorage) - **Map data flows** — Trace sensitive data (credentials, PII, tokens) through the system and verify protection at each stage - **Enumerate entry points** — List all routes, endpoints, CLI arguments, message queue consumers, WebSocket handlers, and scheduled tasks …
Read the whole file at its exact version.
How to install
mdr add jim60105/copilot-prompt/typescript-security@sha256:687567a50c48caf3The line at the top of this page pins the label git:20260928.6911cf8, 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_niwhgw6o7dej7frq)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Mar 22, 2026 and Sep 28, 2026, about one every 63 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260928.6911cf8 latest | 2026-09-28 | 6911cf8 | 15,333 B | A | view · diff |
| git:20260525.d5d181c | 2026-05-25 | d5d181c | 15,302 B | A | view · diff |
| git:20260525.c389ab4 | 2026-05-25 | c389ab4 | 15,269 B | A | view · diff |
| git:20260322.a7dc33e | 2026-03-22 | a7dc33e | 15,242 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 (15333 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
jim60105/copilot-prompt · 22 stars · license GFDL-1.3 · pushed 2026-10-16 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_niwhgw6o7dej7frq GET https://markdownregistry.com/api/v1/resolve?ref=jim60105/copilot-prompt/typescript-security GET https://markdownregistry.com/api/v1/blob/687567a50c48caf39214fcef9a9515157b7de6866d41deabbade1daf448bbb15
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.
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