Ctf Osint
ljagiello/ctf-skills
Provides open source intelligence techniques for CTF challenges.
This skill provides guidance for cracking 7z archive password hashes.
Install Crack 7z Hash
$ npx skills add lazyFrogLOL/Harness_Engineering --skill crack-7z-hash -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install lazyFrogLOL/Harness_Engineering crack-7z-hash --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/lazyFrogLOL/Harness_Engineering.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/crack-7z-hash .claude/skills/crack-7z-hash && 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 "crack-7z-hash" agent skill from https://github.com/lazyFrogLOL/Harness_Engineering/tree/master/skills/crack-7z-hash into .claude/skills/crack-7z-hash/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "crack-7z-hash", 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/lazyFrogLOL/Harness_Engineering/tree/master/skills/crack-7z-hashType 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 lazyFrogLOL/Harness_Engineering --skill crack-7z-hash -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install lazyFrogLOL/Harness_Engineering crack-7z-hash --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/lazyFrogLOL/Harness_Engineering.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/crack-7z-hash .agents/skills/crack-7z-hash && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "crack-7z-hash" agent skill from https://github.com/lazyFrogLOL/Harness_Engineering/tree/master/skills/crack-7z-hash into .agents/skills/crack-7z-hash/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "crack-7z-hash", 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 lazyFrogLOL/Harness_Engineering --skill crack-7z-hash -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install lazyFrogLOL/Harness_Engineering crack-7z-hash --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/lazyFrogLOL/Harness_Engineering.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/crack-7z-hash .cursor/skills/crack-7z-hash && 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 "crack-7z-hash" agent skill from https://github.com/lazyFrogLOL/Harness_Engineering/tree/master/skills/crack-7z-hash into .cursor/skills/crack-7z-hash/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "crack-7z-hash", 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/lazyFrogLOL/Harness_Engineering.git --path skills/crack-7z-hash--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 lazyFrogLOL/Harness_Engineering --skill crack-7z-hash -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install lazyFrogLOL/Harness_Engineering crack-7z-hash --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/lazyFrogLOL/Harness_Engineering.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/crack-7z-hash .gemini/skills/crack-7z-hash && 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 "crack-7z-hash" agent skill from https://github.com/lazyFrogLOL/Harness_Engineering/tree/master/skills/crack-7z-hash into .gemini/skills/crack-7z-hash/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "crack-7z-hash", 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 lazyFrogLOL/Harness_Engineering crack-7z-hashInstalls 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 lazyFrogLOL/Harness_Engineering --skill crack-7z-hash -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/lazyFrogLOL/Harness_Engineering.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/crack-7z-hash .github/skills/crack-7z-hash && 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 "crack-7z-hash" agent skill from https://github.com/lazyFrogLOL/Harness_Engineering/tree/master/skills/crack-7z-hash into .github/skills/crack-7z-hash/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "crack-7z-hash", 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 lazyFrogLOL/Harness_Engineering --skill crack-7z-hash -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install lazyFrogLOL/Harness_Engineering crack-7z-hash --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/lazyFrogLOL/Harness_Engineering.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/crack-7z-hash .opencode/skills/crack-7z-hash && 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 "crack-7z-hash" agent skill from https://github.com/lazyFrogLOL/Harness_Engineering/tree/master/skills/crack-7z-hash into .opencode/skills/crack-7z-hash/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "crack-7z-hash", 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
crack-7z-hash- GitHub stars
- 128
- Token cost
- ~1.3k tokens
- SKILL.md length
- 460 words
- Files
- 1
- Skills in repo
- 32
- Repo updated
- First seen
- Licence
- None found
At a glance
This skill provides guidance for cracking 7z archive password hashes.
- Works in 6 steps: Hash Extraction → Hash Format Identification → Tool Selection and Configuration → …
- Tasks that involve Capture the flag
- SKILL.md covers Overview, Workflow, Common Pitfalls and Verification Strategies, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Crack 7z Hash is an agent skill from lazyFrogLOL/Harness_Engineering. This skill provides guidance for cracking 7z archive password hashes. It should be used when tasks involve extracting hashes from password-protected 7z archives, selecting appropriate cracking tools, and recovering passwords through dictionary or brute-force attacks. Applicable to password recovery, security testing, and CTF challenges involving encrypted 7z files.
Its SKILL.md is about 1.3k 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 Security, covering Capture the flag.
When your agent uses it
- Tasks that involve Capture the flag
Example prompts
- “/crack-7z-hash”
Requirements
- Python 3
Workflow steps
6 steps, taken from the step headings in SKILL.md.
- Hash Extraction
- Hash Format Identification
- Tool Selection and Configuration
- Wordlist Selection
- Execute Cracking Attack
- Verification
What it can do on your machine
Read from SKILL.md and the folder at commit cae3b25. 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 bash).
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
Crack 7z Hash loads about 1.3k tokens when it runs. Until then it costs about 95 tokens; SKILL.md has 460 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
Without a licence we can't republish the file, so here is its outline and opening line. It has 460 words (~1,336 tokens).
“This skill guides agents through the process of extracting and cracking password hashes from 7z archives. It covers hash extraction, tool selection, attack methodology, and verification procedures essential for successful password recovery.”
- name
- crack-7z-hash
Files
Just SKILL.md in skills/crack-7z-hash of lazyFrogLOL/Harness_Engineering.
Open the folder on GitHubat commit cae3b25
Compare with similar skills
Crack 7z Hash 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 |
|---|---|---|---|---|---|---|
| Crack 7z Hash this skilllazyFrogLOL/Harness_Engineering | 128 | — | ~1.3k | Automated safety check: Pass | None | |
| Ctf Osintljagiello/ctf-skills | 3.4k | 1 repos | ~2.3k | Automated safety check: Notes | MIT | |
| Helloctf SkillProbiusOfficial/Hello-CTF | 4.2k | — | ~387 | Automated safety check: Pass | GPL-3.0 | |
| Secknowledge SkillPa55w0rd/secknowledge-skill | 425 | — | ~2.7k | Automated safety check: Pass | None | |
| Vuln Researchtanweai/xianzhi-research | 185 | — | ~847 | Automated safety check: Pass | None | |
| Alibabacloud Ecs Sec Kernelaliyun/alibabacloud-ecs-troubleshoot-skills | 148 | — | ~2.4k | Automated safety check: Notes | Apache-2.0 |
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Related
Categories
Questions about Crack 7z Hash
What does Crack 7z Hash do?
This skill provides guidance for cracking 7z archive password hashes. Crack 7z Hash is an agent skill from lazyFrogLOL/Harness_Engineering. This skill provides guidance for cracking 7z archive password hashes.
When should I use Crack 7z Hash?
Crack 7z Hash fits situations like: tasks that involve Capture the flag.
How do I install Crack 7z Hash in Claude Code?
Run `npx skills add lazyFrogLOL/Harness_Engineering --skill crack-7z-hash -a claude-code`. Or copy the skill folder (skills/crack-7z-hash in lazyFrogLOL/Harness_Engineering) into .claude/skills/crack-7z-hash in your project. Claude Code loads it when a task matches its description.
How do I install Crack 7z Hash in Codex?
Run `npx skills add lazyFrogLOL/Harness_Engineering --skill crack-7z-hash -a codex`. Or copy the skill folder (skills/crack-7z-hash in lazyFrogLOL/Harness_Engineering) into .agents/skills/crack-7z-hash in your project. Codex loads it when a task matches its description.
Can I use Crack 7z Hash 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 lazyFrogLOL/Harness_Engineering --skill crack-7z-hash -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/crack-7z-hash, .gemini/skills/crack-7z-hash, .github/skills/crack-7z-hash and .opencode/skills/crack-7z-hash in your project.
What does Crack 7z Hash need to run?
SKILL.md names no scripts, command-line tools or credentials: Crack 7z Hash is instructions for the agent only. Our summary lists: Python 3.
Does Crack 7z Hash 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 Crack 7z Hash 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 Crack 7z Hash use?
No licence was found for Crack 7z Hash or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Crack 7z Hash use?
About 1.3k tokens (SKILL.md is roughly 5.3k 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 Crack 7z Hash?
Skills that share tags, products or a category with Crack 7z Hash: Ctf Osint (ljagiello/ctf-skills, 3.4k stars), Helloctf Skill (ProbiusOfficial/Hello-CTF, 4.2k stars), Secknowledge Skill (Pa55w0rd/secknowledge-skill, 425 stars) and Vuln Research (tanweai/xianzhi-research, 185 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Crack 7z Hash?
lazyFrogLOL (a GitHub user) maintains it in lazyFrogLOL/Harness_Engineering, which has 128 GitHub stars. The repository holds 32 skills in this directory. The repository was last updated on May 18, 2026.
Source: lazyFrogLOL/Harness_Engineering on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.