typescript-security

92 / 100 · Low risk

Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.

By HoangNguyen0403/agent-skills-standard (GitHub) · coding · 584 stars · scanned at commit 00ca749

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.

Works with any agent that supports SKILL.md skills.

What this skill can do

Runs commands on your computer

This is disclosed by the author in the skill's SKILL.md or README. Expected for a coding skill.

Found in 3 places.

skills/typescript/typescript-security/SKILL.md, line 49- **No shell string interpolation**: Never use `execSync(\`cmd ${userInput}\`)`or interpolate environment variables / config values into`execSync`/`spawnSync`st
skills/typescript/typescript-security/evals/evals.json, line 51"prompt": "I need to run a git command in CI using an env var for the branch name: execSync(`git diff --name-only origin/${process.env.GITHUB_BASE_REF}...HEAD`)
skills/typescript/typescript-security/evals/evals.json, line 52"expected_output": "Command injection risk (OWASP A03). Environment variable values can contain shell metacharacters. Replace execSync with execFileSync and pas

Connects to the internet

The author does not mention this.

Found in 1 place.

skills/typescript/typescript-security/SKILL.md, line 50- **No unvalidated SSRF origins**: When a URL comes from env vars or config (e.g., `FEEDBACK_API_URL`), validate it against an allowed-origin allowlist before c

Other copies in this repository

HoangNguyen0403/agent-skills-standard has 1 more folder with a skill named typescript-security. This page shows the lowest-scoring copy.

.agents/skills/typescript/typescript-security 92/100 · Low risk

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'typescript-security' ] || [ -L ~/.agents/skills/'typescript-security' ]; then echo 'A skill folder named typescript-security already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/HoangNguyen0403/agent-skills-standard' "$d" && git -C "$d" checkout --quiet '00ca7497a75c323a7e70edaa9beac81cc96c1878' -- 'skills/typescript/typescript-security' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/typescript/typescript-security' ~/.agents/skills/'typescript-security' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'typescript-security' ~/.claude/skills/'typescript-security' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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Score history

Date	Version	Score
2026-11-12	`00ca749`	92
2026-11-08	`d1957d0`	92
2026-11-07	`d1957d0`	82