Agent skill

Ctf Osint

CTF 开源情报(OSINT)技术。当挑战要求从公开信息中找线索——如给定用户名/邮箱追踪身份、给定照片进行地理定位、从历史网页快照中恢复数据时使用。覆盖社交媒体调查、Google Dorking、反向图片搜索、Wayback Machine、DNS 侦察、Tor 中继查询、元数据提取

No licenceAuto-check passedSecurity

Install Ctf Osint

skills CLI

$ npx skills add wgpsec/AboutSecurity --skill ctf-osint -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install wgpsec/AboutSecurity ctf-osint --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/wgpsec/AboutSecurity.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/ctf/ctf-osint .claude/skills/ctf-osint && rm -rf skills-src

Use ~/.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/

Paste into Claude Code

Install the "ctf-osint" agent skill from https://github.com/wgpsec/AboutSecurity/tree/master/skills/ctf/ctf-osint into .claude/skills/ctf-osint/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ctf-osint", 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

$skill-installer install https://github.com/wgpsec/AboutSecurity/tree/master/skills/ctf/ctf-osint

Type 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.

skills CLI

$ npx skills add wgpsec/AboutSecurity --skill ctf-osint -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install wgpsec/AboutSecurity ctf-osint --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/wgpsec/AboutSecurity.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/ctf/ctf-osint .agents/skills/ctf-osint && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "ctf-osint" agent skill from https://github.com/wgpsec/AboutSecurity/tree/master/skills/ctf/ctf-osint into .agents/skills/ctf-osint/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ctf-osint", 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.

skills CLI

$ npx skills add wgpsec/AboutSecurity --skill ctf-osint -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install wgpsec/AboutSecurity ctf-osint --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/wgpsec/AboutSecurity.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/ctf/ctf-osint .cursor/skills/ctf-osint && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "ctf-osint" agent skill from https://github.com/wgpsec/AboutSecurity/tree/master/skills/ctf/ctf-osint into .cursor/skills/ctf-osint/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ctf-osint", 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

$ gemini skills install https://github.com/wgpsec/AboutSecurity.git --path skills/ctf/ctf-osint

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add wgpsec/AboutSecurity --skill ctf-osint -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install wgpsec/AboutSecurity ctf-osint --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/wgpsec/AboutSecurity.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/ctf/ctf-osint .gemini/skills/ctf-osint && rm -rf skills-src

Use ~/.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/

Paste into Gemini CLI

Install the "ctf-osint" agent skill from https://github.com/wgpsec/AboutSecurity/tree/master/skills/ctf/ctf-osint into .gemini/skills/ctf-osint/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ctf-osint", 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.

GitHub CLI

$ gh skill install wgpsec/AboutSecurity ctf-osint

Installs 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).

skills CLI

$ npx skills add wgpsec/AboutSecurity --skill ctf-osint -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/wgpsec/AboutSecurity.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/ctf/ctf-osint .github/skills/ctf-osint && rm -rf skills-src

Use ~/.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/

Paste into GitHub Copilot

Install the "ctf-osint" agent skill from https://github.com/wgpsec/AboutSecurity/tree/master/skills/ctf/ctf-osint into .github/skills/ctf-osint/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ctf-osint", 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.

skills CLI

$ npx skills add wgpsec/AboutSecurity --skill ctf-osint -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install wgpsec/AboutSecurity ctf-osint --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/wgpsec/AboutSecurity.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/ctf/ctf-osint .opencode/skills/ctf-osint && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "ctf-osint" agent skill from https://github.com/wgpsec/AboutSecurity/tree/master/skills/ctf/ctf-osint into .opencode/skills/ctf-osint/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ctf-osint", 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: ctf-osint
GitHub stars: 1.8k
Token cost: ~530 tokens
SKILL.md length: 56 words
Files: 6 (incl. references)
Skills in repo: 74
Repo updated: Oct 8, 2026
First seen: Oct 7, 2026
Licence: None found

At a glance

Tasks that involve Capture the flag
SKILL.md covers 深入参考, 分类决策树, 快速命令 and 字符串识别, plus 2 more sections
Calls curl; reaches ip-api.com
Tasks that involve OSINT

What it does

Ctf Osint is an agent skill from wgpsec/AboutSecurity. CTF 开源情报(OSINT)技术。当挑战要求从公开信息中找线索——如给定用户名/邮箱追踪身份、给定照片进行地理定位、从历史网页快照中恢复数据时使用。覆盖社交媒体调查、Google Dorking、反向图片搜索、Wayback Machine、DNS 侦察、Tor 中继查询、元数据提取

Its SKILL.md is about 530 tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files, including reference files (for example `evals/evals.json`, `evals/recall.json` and `references/geolocation-and-media.md`).

It sits in Security, covering Capture the flag and OSINT. The repository describes itself as: Everything for pentest. | 渗透测试知识库，以 AI Agent 可执行的格式沉淀安全方法论。

When your agent uses it

Tasks that involve Capture the flag
Tasks that involve OSINT

Example prompts

“/ctf-osint”

What it can do on your machine

Read from SKILL.md and the folder at commit d428372. 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
Shell commands in SKILL.md call:
- curl
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
- ip-api.com
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

Ctf Osint loads about 530 tokens when it runs, and up to ~11k if it reads all its reference files. Until then it costs about 38 tokens; SKILL.md has 56 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~38
When it runs · the whole SKILL.md, loaded when a task matches: ~530
With references · SKILL.md plus every file in references/, read only if the agent opens them: ~11k

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

Without a licence we can't republish the file, so here is its outline and opening line. It has 56 words (~530 tokens).

name: ctf-osint
metadata.tags: ctf,osint,开源情报,geolocation,社交媒体,dns,dorking,图片搜索
metadata.category: ctf

Read the full SKILL.md on GitHub

Files

SKILL.md and 5 other files (references) in skills/ctf/ctf-osint of wgpsec/AboutSecurity.

SKILL.md
evals/evals.json
evals/recall.json
references/geolocation-and-media.md
references/social-media.md
references/web-and-dns.md

Open the folder on GitHubat commit d428372

Compare with similar skills

Ctf Osint 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.

Ctf Osint compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Ctf Osint this skillwgpsec/AboutSecurity	1.8k	—	~530	Automated safety check: Pass	None	yesterday
Ctf Osintljagiello/ctf-skills	3.4k	1 repos	~2.3k	Automated safety check: Notes	MIT	25 days ago
Reverse Flowlingbol088-spec/reverse-flow-skill	940	—	~2.4k	Automated safety check: Pass	MIT	2 mo ago
Metabigor OSINT Reconj3ssie/metabigor	1.8k	—	~2.4k	Automated safety check: Pass	MIT	2 mo ago
Penetration Flowlingbol088-spec/ReiPenFlow	222	—	~1.8k	Automated safety check: Pass	MIT	2 mo ago
Helloctf SkillProbiusOfficial/Hello-CTF	4.2k	—	~387	Automated safety check: Pass	GPL-3.0	today

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Apt Emulation
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Questions about Ctf Osint

What does Ctf Osint do?

CTF 开源情报(OSINT)技术。当挑战要求从公开信息中找线索——如给定用户名/邮箱追踪身份、给定照片进行地理定位、从历史网页快照中恢复数据时使用。覆盖社交媒体调查、Google Dorking、反向图片搜索、Wayback Machine、DNS 侦察、Tor 中继查询、元数据提取. Ctf Osint is an agent skill from wgpsec/AboutSecurity.

When should I use Ctf Osint?

Ctf Osint fits situations like: tasks that involve Capture the flag; tasks that involve OSINT.

How do I install Ctf Osint in Claude Code?

Run `npx skills add wgpsec/AboutSecurity --skill ctf-osint -a claude-code`. Or copy the skill folder (skills/ctf/ctf-osint in wgpsec/AboutSecurity) into .claude/skills/ctf-osint in your project. Claude Code loads it when a task matches its description.

How do I install Ctf Osint in Codex?

Run `npx skills add wgpsec/AboutSecurity --skill ctf-osint -a codex`. Or copy the skill folder (skills/ctf/ctf-osint in wgpsec/AboutSecurity) into .agents/skills/ctf-osint in your project. Codex loads it when a task matches its description.

Can I use Ctf Osint 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 wgpsec/AboutSecurity --skill ctf-osint -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/ctf-osint, .gemini/skills/ctf-osint, .github/skills/ctf-osint and .opencode/skills/ctf-osint in your project.

What does Ctf Osint need to run?

Going by SKILL.md and its folder, Ctf Osint needs the command-line tools its instructions call (curl).

Does Ctf Osint access the network?

SKILL.md names 1 domain. In commands or code: ip-api.com; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.

Is Ctf Osint 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 Ctf Osint use?

No licence was found for Ctf Osint or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Ctf Osint use?

About 530 tokens (SKILL.md is roughly 2.1k 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 10k tokens, read only when the agent opens those files.

What are the alternatives to Ctf Osint?

Skills that share tags, products or a category with Ctf Osint: Ctf Osint (ljagiello/ctf-skills, 3.4k stars), Reverse Flow (lingbol088-spec/reverse-flow-skill, 940 stars), Metabigor OSINT Recon (j3ssie/metabigor, 1.8k stars) and Penetration Flow (lingbol088-spec/ReiPenFlow, 222 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Ctf Osint?

wgpsec (a GitHub organization) maintains it in wgpsec/AboutSecurity, which has 1,777 GitHub stars. The repository holds 74 skills in this directory. The repository was last updated on October 8, 2026.

Source: wgpsec/AboutSecurity on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Ctf Osint

Facts

At a glance

What it does

When your agent uses it

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Files

Compare with similar skills

Similar skills

More from wgpsec/AboutSecurity

Related

Questions about Ctf Osint