typescript-security SKILL.md skillA
This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.
typescript-security from hoangnguyen0403/agent-skills-standard is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add hoangnguyen0403/agent-skills-standard/typescript-security@git:20260821.b9b1ba0Pins git:20260821.b9b1ba0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- hoangnguyen0403/agent-skills-standard
- Path
.claude/skills/typescript/typescript-security/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260821.b9b1ba0, committed Aug 21, 2026
- Size
- 3,269 bytes
- Repository stars
- 583
- License
- MIT
Secure server-side TypeScript input, auth tokens, and injection boundaries. Use for API/request validation, sanitization, secrets, and sensitive configuration; defer client-only React form validation and generic linting.
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 Security
## **Priority: P0 (CRITICAL)**
## Validate Input at Boundaries
- Use **`Zod`**, **`Joi`**, or **`class-validator`** at **API boundary**. Always **`parse`** and validate **`user-controlled input`** before using. Use **`safeParse`** for error handling without throwing. Return **`400 with structured errors`** on failure.
See [references/REFERENCE.md](references/REFERENCE.md) for Zod validation schemas, secure cookie setup, and JWT auth patterns.
## Prevent Injection and XSS
- **Sanitization**: Use **`DOMPurify`** for HTML sanitization to prevent **Cross-Site Scripting (XSS)**.
- **SQL Injection**: Use **Parameterized Queries** (e.g., **`pool.query('... WHERE id = $1', [id])`**) or **Type-safe ORMs** (**`Prisma`**/`TypeORM`). Use **`Prisma.sql`** for raw queries.
- **Input Filtering**: Sanitize **`user-controlled input`** before using it in file paths or OS commands (Command Injection).
## Secure Authentication
- Use **`Argon2id`** for password hashing. Implement **`JWT`** (via **`jsonwebtoken`** or **`jose`**) with **`HttpOnly`** and **`Secure`** cookies. Use **`RS256`** for public/private key pairs and implement **`Refresh Token rotation`**.
…Read the whole file at its exact version.
How to install
mdr add hoangnguyen0403/agent-skills-standard/typescript-security@sha256:48dc0167fcdc5099The line at the top of this page pins the label git:20260821.b9b1ba0, 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_ul46y37hqcayrvcs)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Aug 21, 2026.
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 (3269 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
hoangnguyen0403/agent-skills-standard · 583 stars · license MIT · pushed 2026-11-07 · branch develop
API
GET https://markdownregistry.com/api/v1/artifacts/art_ul46y37hqcayrvcs GET https://markdownregistry.com/api/v1/resolve?ref=hoangnguyen0403/agent-skills-standard/typescript-security GET https://markdownregistry.com/api/v1/blob/48dc0167fcdc5099ebe6f3d971fdede79be8ee5f1cf1edad73b2babd5fe32be3
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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