Agent skill

Techstack Osint

by transilienceai in transilienceai/communitytools

OSINT-side tech-stack identification — public repositories (GitHub/GitLab), job postings & ATS, and Wayback Machine historical snapshots.

MITAuto-check passedSecurity

Install Techstack Osint

skills CLI
$ npx skills add transilienceai/communitytools --skill techstack-osint -a claude-code

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

GitHub CLI
$ gh skill install transilienceai/communitytools techstack-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/transilienceai/communitytools.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/techstack-identification/osint .claude/skills/techstack-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/

Facts

Skill name
techstack-osint
GitHub stars
559
Token cost
~468 tokens
SKILL.md length
194 words
Files
2
Skills in repo
35
Repo updated
First seen
Licence
MIT

At a glance

OSINT-side tech-stack identification — public repositories (GitHub/GitLab), job postings & ATS, and Wayback Machine historical snapshots.

  • Tasks that involve OSINT
  • SKILL.md covers Scope, Signals (input), Inferences (output) and Techniques, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Techstack Osint is an agent skill from transilienceai/communitytools. OSINT-side tech-stack identification — public repositories (GitHub/GitLab), job postings & ATS, and Wayback Machine historical snapshots.

Its SKILL.md is about 470 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `reference/patterns.md`).

It sits in Security, covering OSINT. It works with GitHub and GitLab. The repository describes itself as: Open-source Claude Code skills, agents, and slash commands for AI-powered penetration testing, bug bounty hunting, and security research. The licence is MIT.

When your agent uses it

  • Tasks that involve OSINT

Example prompts

  • “/techstack-osint”

Requirements

  • Node.js

What it can do on your machine

Read from SKILL.md and the folder at commit 95fdc12. 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

Techstack Osint loads about 468 tokens when it runs. Until then it costs about 38 tokens; SKILL.md has 194 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
~468

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 transilienceai/communitytools at commit 95fdc12, republished under its MIT licence (© transilienceai). 194 words, ~468 tokens.

Download SKILL.mdSave it as .claude/skills/techstack-osint/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
techstack-osint
description
OSINT-side tech-stack identification — public repositories (GitHub/GitLab), job postings & ATS, and Wayback Machine historical snapshots.

OSINT Tech-Stack Identification

Scope

Recover technology signals from public, non-target sources:

  • Code repositories — public GitHub/GitLab orgs, language stats, dependency files (package.json, requirements.txt, Gemfile, go.mod, pom.xml, composer.json), CI configs, Dockerfiles.
  • Career signals — career page, ATS platform (Greenhouse, Lever, Workday, Ashby, iCIMS, Taleo, etc.), job-description tech requirements.
  • Web archives — Wayback Machine CDX queries to detect historical stack and migrations.

These provide indirect but valuable corroboration; weight lower than direct technical signals.

Signals (input)

  • Public repos: org metadata, language map, dependency files, CI/CD configs, Dockerfile FROM lines
  • Career page URL + ATS URL pattern + job-description text
  • Wayback CDX snapshots (every 6-12 months over 5y)

Inferences (output)

  • Languages and frameworks (with version ranges from dep files)
  • CI/CD platform and pipeline maturity
  • Container base images and orchestration manifests
  • ATS-derived hiring profile (startup vs enterprise)
  • Tech-mention frequency (Core Stack ≥50% / Common 25-50% / Occasional <25%)
  • Historical stack timeline + migration events (jQuery → React, WordPress → Next.js, on-prem → cloud)

Techniques

See reference/patterns.md.

When to use

  • Phase 2 of tech-stack OSINT (corroborating signal layer)
  • Validating a hypothesis from direct signals (e.g. confirm Node.js via package.json)
  • Detecting recent migrations (current stack different from historical)
  • Inferring internal stack when public surface is heavily obscured (Cloudflare-fronted, headless API, etc.)

© transilienceai, 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 1 other file in skills/techstack-identification/osint of transilienceai/communitytools.

  • SKILL.md
  • reference/patterns.md

Open the folder on GitHubat commit 95fdc12

Compare with similar skills

Techstack 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.

Techstack Osint compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Techstack Osint this skilltransilienceai/communitytools559—~468Automated safety check: PassMIT
Keeljoseconti/declaracion-renta-espana190—~11kAutomated safety check: WarnGPL-3.0-or-later
Recon Osinthypnguyen1209/offensive-claude386—~2.2kAutomated safety check: PassMIT
Vulnerability Lookupptn1411/skill219—~1.1kAutomated safety check: PassNone
Metabigor OSINT Reconj3ssie/metabigor1.8k—~2.4kAutomated safety check: PassMIT
ReviewdogAgentSecOps/SecOpsAgentKit2191 repos~3kAutomated safety check: PassCustom licence

Similar skills

  • Keel

    joseconti/declaracion-renta-espana

    A skill your agent uses for ANY new software project from idea to release — websites, WordPress/WooCommerce plugins, MCP servers, web apps, components, or libraries.

    190 GitHub stars~11k tokensUpdated 2 mo ago
    SecurityAuto-check: warnings
  • Recon Osint

    hypnguyen1209/offensive-claude

    A skill your agent uses when mapping a target's external attack surface or gathering OSINT — subdomain enumeration, attack-surface mapping (httpx/katana/JS secrets), subdomain takeover…

    386 GitHub stars~2.2k tokensUpdated 9 days ago
    SecurityAuto-check passed
  • Multi-source threat intelligence and vulnerability lookup. An agent skill from ptn1411/skill.

    219 GitHub stars~1.1k tokensUpdated 15 days ago
    SecurityAuto-check passed
  • Metabigor OSINT Recon

    j3ssie/metabigor

    Operates the metabigor CLI to map a target's network ranges, subdomains, ports, related domains, CDNs and archived URLs from free sources without API keys.

    1.8k GitHub stars~2.4k tokensUpdated 2 mo ago
    SecurityAuto-check passed
  • Reviewdog

    AgentSecOps/SecOpsAgentKit

    Automated code review and security linting integration for CI/CD pipelines using reviewdog.

    219 GitHub starsUsed in 1 repo~3k tokens
    DevelopmentAuto-check passed
  • Greploop

    onyx-dot-app/onyx

    Iteratively improves a PR (GitHub), MR (GitLab), or shelved changelist (Perforce) until Greptile gives it a 5/5 confidence score with zero unresolved comments.

    32k GitHub starsUsed in 4 repos~3.3k tokens
    DevelopmentAuto-check passed

More from transilienceai/communitytools

All 35 skills in this repo
  • Dfir

    transilienceai/communitytools

    Digital forensics and incident response - Windows event log analysis, PCAP forensics, filesystem artifact analysis, AD attack detection, and timeline correlation.

    559 GitHub stars~1.5k tokensUpdated 2 mo ago
    Auto-check passed
  • GitHub Workflow

    transilienceai/communitytools

    GitHub workflow automation — branching, committing, pushing, pull requests, issues, and code review.

    559 GitHub stars~812 tokensUpdated 2 mo ago
    Auto-check: notes
  • Pci Secure Software

    transilienceai/communitytools

    Automated PCI Secure Software Standard (SSS) v2.0 readiness gap-assessment of an application from its source code and documentation.

    559 GitHub stars~1.8k tokensUpdated 2 mo ago
    Auto-check passed
  • Protect With Password

    transilienceai/communitytools

    Generate ONE strong password and apply it to each referenced file (PDF, Word, Excel, PowerPoint, or any type).

    559 GitHub stars~583 tokensUpdated 2 mo ago
    Auto-check passed
  • Skill Update

    transilienceai/communitytools

    Skill creation, update and management — generates skill directory structure, validates against best practices, enforces line count limits.

    559 GitHub stars~1.2k tokensUpdated 2 mo ago
    Auto-check passed
  • Source Code Scanning

    transilienceai/communitytools

    Security-focused source code review and SAST. An agent skill from transilienceai/communitytools.

    559 GitHub stars~1.2k tokensUpdated 2 mo ago
    Auto-check: notes

Works with

Categories

Questions about Techstack Osint

What does Techstack Osint do?

OSINT-side tech-stack identification — public repositories (GitHub/GitLab), job postings & ATS, and Wayback Machine historical snapshots. Techstack Osint is an agent skill from transilienceai/communitytools. OSINT-side tech-stack identification — public repositories (GitHub/GitLab), job postings & ATS, and Wayback Machine historical snapshots.

When should I use Techstack Osint?

Techstack Osint fits situations like: tasks that involve OSINT.

How do I install Techstack Osint in Claude Code?

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

How do I install Techstack Osint in Codex?

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

Can I use Techstack 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 transilienceai/communitytools --skill techstack-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/techstack-osint, .gemini/skills/techstack-osint, .github/skills/techstack-osint and .opencode/skills/techstack-osint in your project.

What does Techstack Osint need to run?

SKILL.md names no scripts, command-line tools or credentials: Techstack Osint is instructions for the agent only. Our summary lists: Node.js.

Does Techstack Osint 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 Techstack 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 Techstack Osint use?

Techstack Osint 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 Techstack Osint use?

About 468 tokens (SKILL.md is roughly 1.9k 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 Techstack Osint?

Skills that share tags, products or a category with Techstack Osint: Keel (joseconti/declaracion-renta-espana, 190 stars), Recon Osint (hypnguyen1209/offensive-claude, 386 stars), Vulnerability Lookup (ptn1411/skill, 219 stars) and Metabigor OSINT Recon (j3ssie/metabigor, 1.8k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Techstack Osint?

transilienceai (a GitHub organization) maintains it in transilienceai/communitytools, which has 559 GitHub stars. The repository holds 35 skills in this directory. The repository was last updated on July 29, 2026.

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