redteam-easm

redteam-easm is a cursor rule for Cursor from Contoso-State/red-team-agent-orchestration. It costs 82 tokens per session (491 once invoked), scanned A, original, MIT.

An outside-in inventory of an organization's internet-facing systems and domains, known as external attack surface management.

In plain words
What is it for?
It maps and correlates exposed Azure-related assets, identifies dangling DNS and ownership gaps, and passes specific configuration issues to the responsible security reviews.
Why use it?
It helps uncover public IP addresses, domain names, exposed ports, abandoned DNS records, possible subdomain takeovers, and unknown public assets.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/. Also seen: mentions subagents.

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add rules/contoso-state/red-team-agent-orchestration/redteam-easm
Clone the repo
git clone --depth 1 https://github.com/Contoso-State/red-team-agent-orchestration

Made for: Cursor.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for redteam-easm

README.md
[![agentmods](https://agentmods.dev/badge/rules/contoso-state/red-team-agent-orchestration/redteam-easm.svg)](https://agentmods.dev/rules/contoso-state/red-team-agent-orchestration/redteam-easm)
Your own site
<a href="https://agentmods.dev/rules/contoso-state/red-team-agent-orchestration/redteam-easm"><img src="https://agentmods.dev/badge/rules/contoso-state/red-team-agent-orchestration/redteam-easm.svg" alt="Measured on agentmods" height="20"></a>
Per session 82 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 491 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00082 $0.00491
Opus 5 $0.00041 $0.00246
Sonnet 5 $0.00016 $0.00098
Haiku 4.5 $0.00008 $0.00049

Measured 6d ago against content hash dd74ac880240, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

redteam-easm scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.cursor/rules/redteam-easm.mdc · 36 lines

What it actually says

Red Team — Attack Surface (EASM)

Map the engagement's external attack surface: everything reachable from the internet, and — critically — assets that are exposed but not clearly owned by a known in-scope resource.

Methodology: agents/attack-surface/system-prompt.md. Checks: checks/easm/checks.yaml. Skill (domain knowledge): .github/skills/azure-redteam-easm/SKILL.md. Az CLI runner: tools/az-cli/easm.md.

Boundary (avoid duplicate findings)

EASM is discovery and correlation, not per-resource configuration. network-exposure owns why a specific NSG/public IP is misconfigured; you own the outside-in inventory — the full set of public FQDNs/IPs, dangling DNS, subdomain-takeover risk, and orphaned/unknown assets. When the footprint reveals a specific Azure misconfig, cross-reference the owning domain agent rather than re-filing its finding.

Output

Run each check in checks/easm/checks.yaml via the runner. Produce an external-surface inventory and flag dangling DNS / takeover candidates and unknown exposed assets. Hand internet-reachable footholds to the authorization agent for attack-path correlation. Emit findings to engagements/<session>/findings/raw/attack-surface.jsonl, ID prefix AZ-EASM-.

Safety

Read-only, passive. Use Azure management-plane data, Defender EASM inventory, and DNS resolution only. Never port-scan, send probes, or actively interrogate third-party hosts. Report a summary back to the orchestrator.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 6d ago First seen · 36 lines · 82 tokens per session scan A dd74ac880240

Subscribe to this mod's changes

redteam-easm is a cursor rule published in the GitHub repository Contoso-State/red-team-agent-orchestration (6 stars, last pushed yesterday), licensed MIT. It adds 82 tokens to every session and 491 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.