supply-chain-attack-recon
supply-chain-attack-recon is an code AI skill with a core value of External recon for software supply-chain attack surface. It
helps developers solve real-world problems in the code domain, boosting
efficiency, automating repetitive tasks, and optimizing workflows.
External recon for software supply-chain attack surface
Quick Facts
mkdir -p ./skills/supply-chain-attack-recon && curl -sfL https://raw.githubusercontent.com/sickn33/antigravity-awesome-skills/main/skills/supply-chain-attack-recon/SKILL.md -o ./skills/supply-chain-attack-recon/SKILL.md Run in terminal / PowerShell. Requires curl (Unix) or PowerShell 5+ (Windows).
Skill Content
> **⚠️ AUTHORIZED USE ONLY**
> This skill is for educational purposes or authorized security assessments only.
> You must have explicit, written permission from the system owner before using this tool.
> Misuse of this tool is illegal and strictly prohibited.
> **Mandatory confirmation gate**
> Before running any command that probes, exploits, changes, persists on, extracts data from, or attempts credential access against a target:
> 1. Ask the user to state the exact target URL, IP, account, or resource.
> 2. Ask the user to confirm written authorization and the permitted scope.
> 3. Show the exact command(s) and explain their expected effect.
> 4. Wait for explicit confirmation in the current conversation.
>
> Without that confirmation, remain read-only and provide defensive guidance only. Prefer a sandbox, disposable VM, or controlled lab.
When to use
Trigger when:
- Target has a public GitHub organization (find via OSINT)
- JS bundles reference internal-looking package names (`@target-internal/...`, `target-utils`, `target-shared`)
- Build logs, SBOMs, or `package-lock.json` files are publicly accessible
- Target uses CI/CD that's partially public (GitHub Actions, GitLab CI, Bitrise)
- Docker images on Docker Hub/GHCR/Quay belong to target org
- Findings include `npmrc`/`pip.conf`/`gradle.properties` with internal registry URLs
- `.github/workflows/*.yml` files reference internal tooling
Do NOT use for:
- Internal-network artifact registries (out of scope per external boundary)
- Actually publishing typosquats / dep-confusion packages without explicit OK
- Compromising upstream open-source projects (massive blast radius — illegal in most jurisdictions without authorization)
---
The supply-chain attack surface map
Target Org
├── Public GitHub Org → workflow files → secrets exfil opportunities
├── Internal package names in JS/Android bundles → dependency confusion
├── Docker images on public registries → secrets in layers, RCE on pull
├── SBOM / artifact metadata → exact dep versions for known-vuln chaining
├── npmrc / pip.conf in repos → internal registry URL disclosure
├── External package dependencies → typosquat name candidates
└── Build/release pipelines → injection if pull_request_target etc.---
Step 1 — GitHub org discovery
TARGET="<brand>" # set to target brand name
# Direct guesses
for guess in $TARGET "${TARGET}-tech" "${TARGET}corp" "${TARGET}-io" "${TARGET}-eng"; do
curl -sI "https://github.com/$guess" | grep -E "HTTP|status" | head -1
done
# Via WHOIS / email-domain → GitHub search
gh search users --owner-affiliations=organization --query "$TARGET" --limit 10
# Via employees → reverse from social media + GitHub profile
# Many employees list their employer org on their GitHub profile---
Step 2 — Enumerate public repos for sensitive artifacts
ORG="targetorg"
# List public repos
gh repo list "$ORG" --limit 100 --json name,description,visibility,defaultBranchRef
# Look for high-signal repo names
gh repo list "$ORG" --limit 100 --json name | jq -r '.[].name' | grep -iE "internal|infra|deploy|config|secret|setup|sdk|api"
# Clone all (small org) or selectively
gh repo clone "$ORG/$repo_name"---
Step 3 — Internal package-name discovery
From JS bundles
# JS bundles are the easiest source of internal npm names
curl -sk https://target.com/main.js | grep -oE '@[a-z-]+/[a-z-]+' | sort -u
curl -sk https://target.com/main.js | grep -oE 'require\("[^"]+"\)' | sort -u
# Look for scoped names that are NOT public on npm
for pkg in @target/utils @target-internal/api @companybrand/sdk; do
status=$(curl -sI "https://registry.npmjs.org/$pkg" | head -1 | awk '{print $2}')
echo " $pkg → $status"
# 404 → name unclaimed on public npm → DEPENDENCY-CONFUSION CANDIDATE
doneFrom GitHub repo package.json files
# Public repos with package.json that reference internal scopes
for repo in $(gh repo list "$ORG" --limit 50 --json name -🎯 Best For
- Claude users
- Software engineers
- Development teams
- Tech leads
💡 Use Cases
- Code quality improvement
- Best practice enforcement
📖 How to Use This Skill
- 1
Install the Skill
Copy the install command from the Terminal tab and run it. The SKILL.md file downloads to your local skills directory.
- 2
Load into Your AI Assistant
Open Claude and reference the skill. Paste the SKILL.md content or use the system prompt tab.
- 3
Apply supply-chain-attack-recon to Your Work
Open your project in the AI assistant and ask it to apply the skill. Start with a small module to verify the output quality.
- 4
Review and Refine
Review AI suggestions before committing. Run tests, check for regressions, and iterate on the skill output.
❓ Frequently Asked Questions
Is supply-chain-attack-recon compatible with Cursor and VS Code?
Yes — this skill works with any AI coding assistant including Cursor, VS Code with Copilot, and JetBrains IDEs.
Do I need specific dependencies for supply-chain-attack-recon?
Check the install command and Works With section. Most code skills only require the AI assistant and your codebase.
How do I install supply-chain-attack-recon?
Copy the install command from the Terminal tab and run it. The skill downloads to ./skills/supply-chain-attack-recon/SKILL.md, ready to use.
Can I customize this skill for my team?
Absolutely. Edit the SKILL.md file to add team-specific instructions, examples, or workflows.
⚠️ Common Mistakes to Avoid
Skipping validation
Always test AI-generated code changes, even for simple refactors.
Missing dependency updates
Check if the skill requires updated dependencies or new packages.