Supercheck Security Auth
supercheck-io/supercheck
Work on Supercheck authentication, RBAC, tenant isolation, sessions, API and trigger keys, invitations, project membership, project variables, OAuth, super-admin behavior, SSRF, or…
Entry P1 category router for authentication and authorization.
Install Auth Sec
$ npx skills add yaklang/hack-skills --skill auth-sec -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install yaklang/hack-skills auth-sec --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/yaklang/hack-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/auth-sec .claude/skills/auth-sec && 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 "auth-sec" agent skill from https://github.com/yaklang/hack-skills/tree/main/skills/auth-sec into .claude/skills/auth-sec/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "auth-sec", 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/yaklang/hack-skills/tree/main/skills/auth-secType 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 yaklang/hack-skills --skill auth-sec -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install yaklang/hack-skills auth-sec --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/yaklang/hack-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/auth-sec .agents/skills/auth-sec && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "auth-sec" agent skill from https://github.com/yaklang/hack-skills/tree/main/skills/auth-sec into .agents/skills/auth-sec/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "auth-sec", 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 yaklang/hack-skills --skill auth-sec -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install yaklang/hack-skills auth-sec --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/yaklang/hack-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/auth-sec .cursor/skills/auth-sec && 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 "auth-sec" agent skill from https://github.com/yaklang/hack-skills/tree/main/skills/auth-sec into .cursor/skills/auth-sec/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "auth-sec", 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/yaklang/hack-skills.git --path skills/auth-sec--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 yaklang/hack-skills --skill auth-sec -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install yaklang/hack-skills auth-sec --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/yaklang/hack-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/auth-sec .gemini/skills/auth-sec && 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 "auth-sec" agent skill from https://github.com/yaklang/hack-skills/tree/main/skills/auth-sec into .gemini/skills/auth-sec/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "auth-sec", 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 yaklang/hack-skills auth-secInstalls 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 yaklang/hack-skills --skill auth-sec -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/yaklang/hack-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/auth-sec .github/skills/auth-sec && 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 "auth-sec" agent skill from https://github.com/yaklang/hack-skills/tree/main/skills/auth-sec into .github/skills/auth-sec/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "auth-sec", 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 yaklang/hack-skills --skill auth-sec -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install yaklang/hack-skills auth-sec --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/yaklang/hack-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/auth-sec .opencode/skills/auth-sec && 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 "auth-sec" agent skill from https://github.com/yaklang/hack-skills/tree/main/skills/auth-sec into .opencode/skills/auth-sec/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "auth-sec", 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
auth-sec- GitHub stars
- 2.4k
- Token cost
- ~591 tokens
- SKILL.md length
- 215 words
- Files
- 1
- Skills in repo
- 27
- Repo updated
- First seen
- Licence
- MIT
At a glance
Entry P1 category router for authentication and authorization.
- Works in 4 steps: First confirm the authentication model… → Then confirm object-level and… → Then move to token, cross-origin, and… → …
- Testing login flows
- SKILL.md covers When to Use, Skill Map, Recommended Flow and Related Categories
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Auth Sec is an agent skill from yaklang/hack-skills. Entry P1 category router for authentication and authorization. Use when testing login flows, sessions, object authorization, JWT, OAuth, CORS, CSRF, and enterprise SSO weaknesses before any deeper auth topic skill.
Its SKILL.md is about 590 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Backend & APIs, covering Authentication, Web application vulnerabilities and OAuth and OpenID Connect. The repository describes itself as: Helping AI Agent become an awesome practical hacker! The licence is MIT.
When your agent uses it
- Testing login flows
- Object authorization
- Enterprise SSO weaknesses before any deeper auth topic skill
Example prompts
- “/auth-sec”
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- First confirm the authentication model and session boundaries
- Then confirm object-level and function-level authorization
- Then move to token, cross-origin, and protocol details
- If enterprise federation exists, continue with OAuth, OIDC, or SAML topics
What it can do on your machine
Read from SKILL.md and the folder at commit 6fbf0bc. 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
Auth Sec loads about 591 tokens when it runs. Until then it costs about 56 tokens; SKILL.md has 215 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 yaklang/hack-skills at commit 6fbf0bc, republished under its MIT licence (© yaklang). 215 words, ~591 tokens.
Download SKILL.mdSave it as
.claude/skills/auth-sec/SKILL.md (or your agent's skills folder).- name
- auth-sec
- description
- Entry P1 category router for authentication and authorization. Use when testing login flows, sessions, object authorization, JWT, OAuth, CORS, CSRF, and enterprise SSO weaknesses before any deeper auth topic skill.
Authentication and Authorization Router
This is the routing entry point for authentication, sessions, and authorization boundaries.
Use it to decide whether the issue is mainly login mechanics, object-level authorization, browser trust boundaries, or identity protocols such as OAuth/JWT/SAML before going deeper.
When to Use
- The target includes login, registration, password reset, 2FA, sessions, JWT, OAuth, or SSO
- You suspect object authorization flaws, cross-tenant access, cross-origin reads, CSRF, or protocol misconfiguration
- You need to decide whether to test authentication or authorization first
Skill Map
- Authentication Bypass: login bypass, password reset, 2FA, enumeration, brute-force protections
- IDOR Broken Object Authorization: IDOR, BOLA, BFLA, missing object permissions
- JWT OAuth Token Attacks: algorithm confusion, key trust issues, claim abuse, token forgery
- OAuth OIDC Misconfiguration: redirect URI, state, nonce, PKCE, account binding
- CSRF Cross Site Request Forgery: CSRF tokens, SameSite, JSON CSRF, login CSRF
- CORS Cross Origin Misconfiguration: reflected Origin, credentialed cross-origin reads, allowlist bypass
- SAML SSO Assertion Attacks: assertion wrapping, signature validation, audience, ACS boundaries
Recommended Flow
- First confirm the authentication model and session boundaries
- Then confirm object-level and function-level authorization
- Then move to token, cross-origin, and protocol details
- If enterprise federation exists, continue with OAuth, OIDC, or SAML topics
Related Categories
- api-sec
- Default credentials, username variants, wordlist sizing, and port focus are consolidated in authbypass-authentication-flaws
© yaklang, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in skills/auth-sec of yaklang/hack-skills.
Open the folder on GitHubat commit 6fbf0bc
Compare with similar skills
Auth Sec 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 |
|---|---|---|---|---|---|---|
| Auth Sec this skillyaklang/hack-skills | 2.4k | — | ~591 | Automated safety check: Pass | MIT | |
| Supercheck Security Authsupercheck-io/supercheck | 215 | — | ~1.2k | Automated safety check: Pass | AGPL-3.0 | |
| Hunt Atoelementalsouls/Claude-BugHunter | 4.8k | — | ~3.4k | Automated safety check: Pass | MIT | |
| Quarkus Securityaffaan-m/ECC | 276k | — | ~2.6k | Automated safety check: Pass | MIT | |
| Quarkus Securityaffaan-m/ECC | 276k | — | ~2.8k | Automated safety check: Pass | MIT | |
| Quarkus Securityaffaan-m/ECC | 276k | — | ~3.1k | Automated safety check: Pass | MIT |
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Related
Categories
Questions about Auth Sec
What does Auth Sec do?
Entry P1 category router for authentication and authorization. Auth Sec is an agent skill from yaklang/hack-skills. Entry P1 category router for authentication and authorization.
When should I use Auth Sec?
Auth Sec fits situations like: testing login flows; object authorization; enterprise SSO weaknesses before any deeper auth topic skill.
How do I install Auth Sec in Claude Code?
Run `npx skills add yaklang/hack-skills --skill auth-sec -a claude-code`. Or copy the skill folder (skills/auth-sec in yaklang/hack-skills) into .claude/skills/auth-sec in your project. Claude Code loads it when a task matches its description.
How do I install Auth Sec in Codex?
Run `npx skills add yaklang/hack-skills --skill auth-sec -a codex`. Or copy the skill folder (skills/auth-sec in yaklang/hack-skills) into .agents/skills/auth-sec in your project. Codex loads it when a task matches its description.
Can I use Auth Sec 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 yaklang/hack-skills --skill auth-sec -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/auth-sec, .gemini/skills/auth-sec, .github/skills/auth-sec and .opencode/skills/auth-sec in your project.
What does Auth Sec need to run?
SKILL.md names no scripts, command-line tools or credentials: Auth Sec is instructions for the agent only.
Does Auth Sec 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 Auth Sec 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 Auth Sec use?
Auth Sec 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 Auth Sec use?
About 591 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.
What are the alternatives to Auth Sec?
Skills that share tags, products or a category with Auth Sec: Supercheck Security Auth (supercheck-io/supercheck, 215 stars), Hunt Ato (elementalsouls/Claude-BugHunter, 4.8k stars), Quarkus Security (affaan-m/ECC, 276k stars) and Quarkus Security (affaan-m/ECC, 276k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Auth Sec?
yaklang (a GitHub organization) maintains it in yaklang/hack-skills, which has 2,409 GitHub stars. The repository holds 27 skills in this directory. The repository was last updated on September 13, 2026.
Source: yaklang/hack-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.