API Audit
briiirussell/cybersecurity-skills
Audit REST, GraphQL, and RPC APIs against the OWASP API Security Top 10 (2023).
API authorization and BOLA testing playbook. An agent skill from yaklang/hack-skills.
Install API Authorization And Bola
$ npx skills add yaklang/hack-skills --skill api-authorization-and-bola -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install yaklang/hack-skills api-authorization-and-bola --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/api-authorization-and-bola .claude/skills/api-authorization-and-bola && 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 "api-authorization-and-bola" agent skill from https://github.com/yaklang/hack-skills/tree/main/skills/api-authorization-and-bola into .claude/skills/api-authorization-and-bola/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "api-authorization-and-bola", 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/api-authorization-and-bolaType 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 api-authorization-and-bola -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install yaklang/hack-skills api-authorization-and-bola --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/api-authorization-and-bola .agents/skills/api-authorization-and-bola && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "api-authorization-and-bola" agent skill from https://github.com/yaklang/hack-skills/tree/main/skills/api-authorization-and-bola into .agents/skills/api-authorization-and-bola/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "api-authorization-and-bola", 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 api-authorization-and-bola -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install yaklang/hack-skills api-authorization-and-bola --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/api-authorization-and-bola .cursor/skills/api-authorization-and-bola && 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 "api-authorization-and-bola" agent skill from https://github.com/yaklang/hack-skills/tree/main/skills/api-authorization-and-bola into .cursor/skills/api-authorization-and-bola/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "api-authorization-and-bola", 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/api-authorization-and-bola--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 api-authorization-and-bola -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install yaklang/hack-skills api-authorization-and-bola --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/api-authorization-and-bola .gemini/skills/api-authorization-and-bola && 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 "api-authorization-and-bola" agent skill from https://github.com/yaklang/hack-skills/tree/main/skills/api-authorization-and-bola into .gemini/skills/api-authorization-and-bola/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "api-authorization-and-bola", 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 api-authorization-and-bolaInstalls 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 api-authorization-and-bola -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/api-authorization-and-bola .github/skills/api-authorization-and-bola && 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 "api-authorization-and-bola" agent skill from https://github.com/yaklang/hack-skills/tree/main/skills/api-authorization-and-bola into .github/skills/api-authorization-and-bola/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "api-authorization-and-bola", 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 api-authorization-and-bola -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 api-authorization-and-bola --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/api-authorization-and-bola .opencode/skills/api-authorization-and-bola && 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 "api-authorization-and-bola" agent skill from https://github.com/yaklang/hack-skills/tree/main/skills/api-authorization-and-bola into .opencode/skills/api-authorization-and-bola/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "api-authorization-and-bola", 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
api-authorization-and-bola- GitHub stars
- 2.4k
- Token cost
- ~449 tokens
- SKILL.md length
- 184 words
- Files
- 1
- Skills in repo
- 27
- Repo updated
- First seen
- Licence
- MIT
At a glance
API authorization and BOLA testing playbook. An agent skill from yaklang/hack-skills.
- Works in 5 steps: CORE TEST LOOP → TEST SURFACES → QUICK PAYLOADS → …
- APIs expose object identifiers
- SKILL.md covers 1. CORE TEST LOOP, 2. TEST SURFACES, 3. QUICK PAYLOADS and 4. WHAT TESTERS MISS, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
API Authorization And Bola is an agent skill from yaklang/hack-skills. API authorization and BOLA testing playbook. Use when APIs expose object identifiers, nested resources, hidden writable fields, or weak function-level authorization.
Its SKILL.md is about 450 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 Authorization and RBAC. It works with GraphQL. The repository describes itself as: Helping AI Agent become an awesome practical hacker! The licence is MIT.
When your agent uses it
- APIs expose object identifiers
- Nested resources
- Hidden writable fields
- Weak function-level authorization
Example prompts
- “/api-authorization-and-bola”
Workflow steps
5 steps, taken from the step headings in SKILL.md.
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 (its code samples are json).
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
API Authorization And Bola loads about 449 tokens when it runs. Until then it costs about 48 tokens; SKILL.md has 184 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). 184 words, ~449 tokens.
Download SKILL.mdSave it as
.claude/skills/api-authorization-and-bola/SKILL.md (or your agent's skills folder).- name
- api-authorization-and-bola
- description
- API authorization and BOLA testing playbook. Use when APIs expose object identifiers, nested resources, hidden writable fields, or weak function-level authorization.
SKILL: API Authorization and BOLA — Object Access, Function Access, and Mass Assignment
AI LOAD INSTRUCTION: Use this skill when an API exposes object IDs, nested resources, or role-sensitive functions and you need a focused authorization test path: BOLA, BFLA, method abuse, and hidden field control.
1. CORE TEST LOOP
- Create Account A and Account B.
- As Account A, capture create, read, update, and delete flows.
- Replay with Account B's token.
- Test sibling endpoints, nested endpoints, and alternate HTTP verbs.
2. TEST SURFACES
| Surface | Example |
|---|---|
| object read | /api/v1/orders/123 |
| nested object | /api/v1/users/1/invoices/9 |
| admin or internal function | /api/v1/admin/users |
| update path | PUT, PATCH, DELETE variants |
| hidden JSON fields | role, org, verified, tier |
3. QUICK PAYLOADS
{"role":"admin"}
{"isAdmin":true}
{"org":"target-company"}
{"verified":true}4. WHAT TESTERS MISS
- object IDs in headers, cookies, GraphQL args, and nested objects
- alternate methods sharing the same route but weaker authz
- parent check present, child resource check missing
- admin docs revealing extra writable fields
5. NEXT ROUTING
- For JWT or token-layer abuse: api auth and jwt abuse
- For GraphQL and hidden parameter discovery: graphql and hidden parameters
- For broader IDOR patterns outside APIs: idor broken object authorization
© 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/api-authorization-and-bola of yaklang/hack-skills.
Open the folder on GitHubat commit 6fbf0bc
Compare with similar skills
API Authorization And Bola 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 |
|---|---|---|---|---|---|---|
| API Authorization And Bola this skillyaklang/hack-skills | 2.4k | — | ~449 | Automated safety check: Pass | MIT | |
| API Auditbriiirussell/cybersecurity-skills | 413 | — | ~2.8k | Automated safety check: Notes | MIT | |
| Backend AI Guidelablup/backend.ai-webui | 133 | 1 repos | ~1.8k | Automated safety check: Pass | LGPL-3.0 | |
| Discover APIrand/cc-polymath | 181 | — | ~1.5k | Automated safety check: Pass | MIT | |
| Apollo Routerapollographql/skills | 117 | — | ~5.4k | Automated safety check: Pass | MIT | |
| API Designeraiskillstore/marketplace | 430 | — | ~3.6k | Automated safety check: Pass | None |
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Related
Works with
Categories
Questions about API Authorization And Bola
What does API Authorization And Bola do?
API authorization and BOLA testing playbook. An agent skill from yaklang/hack-skills. API Authorization And Bola is an agent skill from yaklang/hack-skills. API authorization and BOLA testing playbook.
When should I use API Authorization And Bola?
API Authorization And Bola fits situations like: APIs expose object identifiers; nested resources; hidden writable fields; weak function-level authorization.
How do I install API Authorization And Bola in Claude Code?
Run `npx skills add yaklang/hack-skills --skill api-authorization-and-bola -a claude-code`. Or copy the skill folder (skills/api-authorization-and-bola in yaklang/hack-skills) into .claude/skills/api-authorization-and-bola in your project. Claude Code loads it when a task matches its description.
How do I install API Authorization And Bola in Codex?
Run `npx skills add yaklang/hack-skills --skill api-authorization-and-bola -a codex`. Or copy the skill folder (skills/api-authorization-and-bola in yaklang/hack-skills) into .agents/skills/api-authorization-and-bola in your project. Codex loads it when a task matches its description.
Can I use API Authorization And Bola 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 api-authorization-and-bola -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/api-authorization-and-bola, .gemini/skills/api-authorization-and-bola, .github/skills/api-authorization-and-bola and .opencode/skills/api-authorization-and-bola in your project.
What does API Authorization And Bola need to run?
SKILL.md names no scripts, command-line tools or credentials: API Authorization And Bola is instructions for the agent only.
Does API Authorization And Bola 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 API Authorization And Bola 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 API Authorization And Bola use?
API Authorization And Bola 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 API Authorization And Bola use?
About 449 tokens (SKILL.md is roughly 1.8k 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 API Authorization And Bola?
Skills that share tags, products or a category with API Authorization And Bola: API Audit (briiirussell/cybersecurity-skills, 413 stars), Backend AI Guide (lablup/backend.ai-webui, 133 stars), Discover API (rand/cc-polymath, 181 stars) and Apollo Router (apollographql/skills, 117 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains API Authorization And Bola?
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.