Frontend Mobile Security Xss Scan
aiskillstore/marketplace
You are a frontend security specialist focusing on Cross-Site Scripting (XSS) vulnerability detection and prevention.
Harden Angular apps against XSS, CSP violations, and unauthorized access.
Install Angular Security
$ npx skills add HoangNguyen0403/agent-skills-standard --skill angular-security -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install HoangNguyen0403/agent-skills-standard angular-security --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/angular/angular-security .claude/skills/angular-security && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "angular-security" agent skill from https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/angular/angular-security into .claude/skills/angular-security/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "angular-security", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/angular/angular-securityType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add HoangNguyen0403/agent-skills-standard --skill angular-security -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install HoangNguyen0403/agent-skills-standard angular-security --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/angular/angular-security .agents/skills/angular-security && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "angular-security" agent skill from https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/angular/angular-security into .agents/skills/angular-security/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "angular-security", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add HoangNguyen0403/agent-skills-standard --skill angular-security -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install HoangNguyen0403/agent-skills-standard angular-security --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/angular/angular-security .cursor/skills/angular-security && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "angular-security" agent skill from https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/angular/angular-security into .cursor/skills/angular-security/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "angular-security", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/HoangNguyen0403/agent-skills-standard.git --path skills/angular/angular-security--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add HoangNguyen0403/agent-skills-standard --skill angular-security -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install HoangNguyen0403/agent-skills-standard angular-security --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/angular/angular-security .gemini/skills/angular-security && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "angular-security" agent skill from https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/angular/angular-security into .gemini/skills/angular-security/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "angular-security", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install HoangNguyen0403/agent-skills-standard angular-securityInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add HoangNguyen0403/agent-skills-standard --skill angular-security -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/angular/angular-security .github/skills/angular-security && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "angular-security" agent skill from https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/angular/angular-security into .github/skills/angular-security/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "angular-security", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add HoangNguyen0403/agent-skills-standard --skill angular-security -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install HoangNguyen0403/agent-skills-standard angular-security --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/angular/angular-security .opencode/skills/angular-security && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "angular-security" agent skill from https://github.com/HoangNguyen0403/agent-skills-standard/tree/develop/skills/angular/angular-security into .opencode/skills/angular-security/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "angular-security", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
angular-security- GitHub stars
- 572
- Token cost
- ~608 tokens
- SKILL.md length
- 243 words
- Files
- 3 (incl. references)
- Skills in repo
- 211
- Repo updated
- First seen
- Licence
- MIT
At a glance
Harden Angular apps against XSS, CSP violations, and unauthorized access.
- Implementing XSS protection
- SKILL.md covers Priority: P0 (CRITICAL), Principles, Guidelines and Anti-Patterns, plus 3 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Content Security Policy
What it does
Angular Security is an agent skill from HoangNguyen0403/agent-skills-standard. Harden Angular apps against XSS, CSP violations, and unauthorized access. Use when implementing XSS protection, Content Security Policy, or auth guards in Angular.
Its SKILL.md is about 610 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `evals/evals.json` and `references/security-best-practices.md`).
It sits in Security, covering Web application vulnerabilities. It works with Angular. The repository describes itself as: A collection of Agent Skills Standard and Best Practice for Programming Languages, Frameworks that help our AI Agent follow best practies on frameworks and programming laguages. The licence is MIT.
When your agent uses it
- Implementing XSS protection
- Content Security Policy
- Auth guards in Angular
Example prompts
- “/angular-security”
What it can do on your machine
Read from SKILL.md and the folder at commit b529c2d. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Angular Security loads about 608 tokens when it runs, and up to ~767 if it reads all its reference files. Until then it costs about 45 tokens; SKILL.md has 243 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from HoangNguyen0403/agent-skills-standard at commit b529c2d, republished under its MIT licence (© HoangNguyen0403). 243 words, ~608 tokens.
Download SKILL.mdSave it as
.claude/skills/angular-security/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.- name
- angular-security
- description
- Harden Angular apps against XSS, CSP violations, and unauthorized access. Use when implementing XSS protection, Content Security Policy, or auth guards in Angular.
Security
Priority: P0 (CRITICAL)
Principles
- XSS Prevention: Angular sanitizes interpolated values by default — {{ userInput }} safe. NOT use
innerHTMLunless absolutely necessary (e.g., trusted static CMS content). For user-generated content, display as text with {{ content }} — never as HTML. - Trusted HTML APIs: Mark HTML as trusted only for content you control (e.g., vetted CMS headers). Never mark user-provided data as trusted. Prefer DomSanitizer.sanitize(SecurityContext.HTML, content) and review every trust-marking call as a potential XSS vector.
- Route Guards: Protect all sensitive routes with functional CanActivateFn (e.g., inject(Router).createUrlTree(['/login'])). Apply with canActivate: [authGuard].
Guidelines
- CSP: Configure CSP headers on server (not in Angular source). Use nonce-based CSP with script-src 'nonce-{nonce}' and avoid unsafe-inline/unsafe-eval.
- HTTP: Use Interceptors to attach secure tokens. Use HttpOnly cookies managed by server — not localStorage or sessionStorage because they accessible via XSS.
- Secrets: Never store API keys or secrets in Angular source code or bundle.
Anti-Patterns
- No trust-marking on user input: Trust Angular's sanitization; reserve trusted HTML APIs for verified static content only.
- No localStorage for tokens: Use HttpOnly cookies via interceptors for auth tokens.
- No secrets in source: Never embed API keys or secrets in Angular bundle code.
References
- Security Best Practices
- common/security-standards
CSP and secret checklist
- Use a server-generated, per-response nonce in
script-src 'nonce-{nonce}'; do not use a static nonce. - Keep controlled provenance explicit: trust-mark only controlled and verified or vetted static CMS content.
- Do not put API keys or other secrets in the compiled bundle.
Canonical response anchors
- Additional task-grounded exact anchors: {{ content }}
© HoangNguyen0403, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 2 other files (references) in skills/angular/angular-security of HoangNguyen0403/agent-skills-standard.
- SKILL.md
- evals/evals.json
- references/security-best-practices.md
Open the folder on GitHubat commit b529c2d
Compare with similar skills
Angular Security next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Angular Security this skillHoangNguyen0403/agent-skills-standard | 572 | — | ~608 | Automated safety check: Pass | MIT | |
| Frontend Mobile Security Xss Scanaiskillstore/marketplace | 433 | 7 repos | ~2.4k | Automated safety check: Pass | None | |
| Security Auditoreigent-ai/eigent | 15k | — | ~1.8k | Automated safety check: Notes | Apache-2.0 | |
| Security Reviewjewbetcha/opentrace | 116 | 18 repos | ~3.1k | Automated safety check: Notes | MIT | |
| Code Audit3stoneBrother/code-audit | 892 | 1 repos | ~2.7k | Automated safety check: Pass | None | |
| Fix Strix Security Findingsusestrix/strix | 68k | — | ~1.5k | Automated safety check: Pass | Apache-2.0 |
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Related
Works with
Categories
Questions about Angular Security
What does Angular Security do?
Harden Angular apps against XSS, CSP violations, and unauthorized access. Angular Security is an agent skill from HoangNguyen0403/agent-skills-standard. Harden Angular apps against XSS, CSP violations, and unauthorized access.
When should I use Angular Security?
Angular Security fits situations like: implementing XSS protection; content Security Policy; auth guards in Angular.
How do I install Angular Security in Claude Code?
Run `npx skills add HoangNguyen0403/agent-skills-standard --skill angular-security -a claude-code`. Or copy the skill folder (skills/angular/angular-security in HoangNguyen0403/agent-skills-standard) into .claude/skills/angular-security in your project. Claude Code loads it when a task matches its description.
How do I install Angular Security in Codex?
Run `npx skills add HoangNguyen0403/agent-skills-standard --skill angular-security -a codex`. Or copy the skill folder (skills/angular/angular-security in HoangNguyen0403/agent-skills-standard) into .agents/skills/angular-security in your project. Codex loads it when a task matches its description.
Can I use Angular Security in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add HoangNguyen0403/agent-skills-standard --skill angular-security -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/angular-security, .gemini/skills/angular-security, .github/skills/angular-security and .opencode/skills/angular-security in your project.
What does Angular Security need to run?
SKILL.md names no scripts, command-line tools or credentials: Angular Security is instructions for the agent only.
Does Angular Security access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Angular Security safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Angular Security use?
Angular Security is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Angular Security use?
About 608 tokens (SKILL.md is roughly 2.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 159 tokens, read only when the agent opens those files.
What are the alternatives to Angular Security?
Skills that share tags, products or a category with Angular Security: Frontend Mobile Security Xss Scan (aiskillstore/marketplace, 433 stars), Security Auditor (eigent-ai/eigent, 15k stars), Security Review (jewbetcha/opentrace, 116 stars) and Code Audit (3stoneBrother/code-audit, 892 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Angular Security?
HoangNguyen0403 (a GitHub user) maintains it in HoangNguyen0403/agent-skills-standard, which has 572 GitHub stars. The repository holds 211 skills in this directory. The repository was last updated on October 9, 2026.
Source: HoangNguyen0403/agent-skills-standard on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.