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Infrastructure Tech-Stack Identification · transilienceai | DecimalAI

securityby transilienceai

Infrastructure Tech-Stack Identification

transilienceai/techstack-infra

Source transilienceai/communitytools ↗License MIT

Infrastructure tech-stack identification — cloud providers, CDN/WAF, DNS services, TLS/CT, DevOps tooling, plus asset discovery (domains, subdomains, IPs).

NewMaintained

Automatic

Security & AppSec pack

Last verified 8/18/2026

What it changes

Passed 20 of 22 test cases with the skill, and 20 of 22 without it.

Without skill91%

With skill91%

Checks it passed that the model alone missed

Query Certificate Transparency logs to discover hostnames

1 fixed19 passed either way1 still failing1 broke

Pass-rate lift: 0 pp
Tokens: +21%
Agent turns: 0%
Response time: -5%

Model gemini-3.6-flashMeasured 8/18/2026v120 of 22 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/transilienceai-techstack-infra/SKILL.md https://app.decimal.ai/s/transilienceai-techstack-infra/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add transilienceai-techstack-infra, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/transilienceai-techstack-infra/ and pins it in .decimal/skills.lock

decimalai skills add transilienceai-techstack-infra

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/transilienceai-techstack-infra/SKILL.md https://app.decimal.ai/s/transilienceai-techstack-infra/SKILL.md

Raw file: /s/transilienceai-techstack-infra/SKILL.md ↗ · machine-readable summary at /s/transilienceai-techstack-infra.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

A test case the skill fixed. Same model, same prompt, with and without the skill.

Prompt

A penetration tester wants to map subdomains for a domain behind a strict wildcard WAF that drops direct DNS brute-force queries. Which TLS-related signal feed should be queried to uncover historically issued hostnames without probing target network edge servers?

What was checked, without and with the skill
Checked	Without skill	With skill
Query Certificate Transparency logs to discover hostnames	Missed	Passed

case-06 · gemini-3.6-flash · 8/18/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md36 linessingle file

Infrastructure Tech-Stack Identification

Scope

Identify the hosting and operational layer: cloud providers (AWS/GCP/Azure/DO/Linode/Vultr), PaaS (Heroku/Vercel/Netlify/Render/Railway/Fly), CDN (Cloudflare/Akamai/Fastly/CloudFront/Azure CDN), WAF (Imperva/Sucuri/F5/Fortinet), DNS provider, certificate authority, DevOps tooling (CI/CD, IaC, containers, orchestration), and the asset inventory (root domain, subdomains, IPs, certificates) that the rest of the engagement consumes.

Signals (input)

IP attribution (cloud IP ranges, ASN, WHOIS)
DNS records: A, AAAA, MX, TXT, NS, CNAME, SRV
TLS certificate metadata (issuer, SAN, validity, JARM)
CT logs (crt.sh)
HTTP headers tagging cloud/CDN/WAF
Repository config files (*.tf, Dockerfile, .github/workflows/*, Chart.yaml, etc.)
Asset inventory feeds — initial domain, subdomain enumeration, IP map

Inferences (output)

Primary cloud provider + region(s)
PaaS / serverless / container orchestration
CDN, WAF, DDoS / bot-management products
DNS service, email provider, SaaS verifications (TXT)
Certificate issuer & posture (automation, wildcard, validity window)
DevOps stack: CI/CD platform, containerization, IaC, monitoring, secret mgmt
Asset list: validated primary domain, all subdomains, IPs with cloud attribution

Techniques

See reference/patterns.md.

When to use

First step of every tech-stack engagement (asset inventory feeds all other domains)
Identifying CDN/WAF before choosing exploitation paths
CVE matching by server stack version
Supply-chain / SaaS exposure mapping (DNS verifications)

Track record

Benchmark

20 / 22

test cases passed, vs 20 / 22 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

transilienceai / communitytools

skills/techstack-identification/infra/SKILL.md

View on GitHub ↗

License MITImported 8/3/2026Version v1

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See it in action

What's inside

Infrastructure Tech-Stack Identification

Scope

Signals (input)

Inferences (output)

Techniques

When to use

Track record

Benchmark

Adoption

SkillSafety

Source

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