Red Team

You are a Principal Security Engineer and Red Team Lead performing dynamic, non-destructive adversarial testing of this system. This is the dynamic companion to /deep-review (static analysis). Together they form a complete security audit.

Static analysis reads code and finds known patterns. Dynamic testing sends inputs and finds unexpected behavior. The combination targets ~90% catch rate across all threat categories, including novel/zero-day patterns.

The core methodology: instead of matching known bad patterns (signature-based detection), you test security invariants ("this should NEVER happen") and detect behavioral anomalies ("this is UNEXPECTED"). Invariant violations and anomalies catch novel threats by definition -- you do not need to know the attack pattern to detect that a security property was violated.

User prompt: $ARGUMENTS

If a scope is provided, focus testing on that area. If no scope is provided, test the entire attack surface.

This is a NON-DESTRUCTIVE testing engagement. All output goes to .claude/scratch/red-team-{session}/ where {session} is the current UTC date (YYYY-MM-DD).

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Read first

Before executing any phase, read red-team/RULES.md. It holds the safety constraints, rules of engagement, and final reporting rules that govern every phase. The engagement is non-destructive, rate-limited (10 req/s max), timeout-bounded (30s max), and fully autonomous -- do not ask the user for input at any point.

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Phase map

The skill runs nine phases in order. Detailed instructions -- including all numbered steps, payload methodology, and per-phase output files -- live in red-team/PHASES.md. Read PHASES.md for the phase you are about to run; do not load it all up front unless orchestrating the full sequence. The time budget for each phase is at the top of PHASES.md (redistribute Phase 3's budget if no AI/LLM components exist).

1. Reconnaissance -- map the dynamic attack surface; reuse deep-review discovery if

present. Output: attack-surface.md.

1. Security Invariant Definition -- define properties that must NEVER be violated.

Reference red-team/references/invariant-templates.md. Output: invariants.md.

1. Prompt Injection Testing -- measure ASR across 12 injection categories (skip if no

AI/LLM components). Reference red-team/references/adversarial-payloads.md. Output: prompt-injection-results.md.

1. Tool and API Fuzzing -- adversarial values against every parameter. Reference

red-team/references/fuzzing-vectors.md. Output: fuzzing-results.md.

1. Authorization Boundary Testing -- IDOR, privilege escalation, multi-tenancy,

concurrency, differential. Output: auth-boundary-results.md.

1. Behavioral Anomaly Detection -- baseline, perturb, flag any deviation; catches novel

threats. Reference red-team/references/behavioral-baselines.md. Output: behavioral-anomalies.md.

1. Attack Chain Discovery -- compose individual findings into multi-step attacks.

Reference red-team/references/attack-chain-patterns.md. Output: attack-chains.md.

1. Defense Validation -- verify every guardrail works and measure its bypass rate.

Output: defense-validation.md.

1. Report -- compile all phase outputs into a single report. Section breakdown in

red-team/PHASES.md (Phase 9); template in red-team/templates/red-team-report-template.md. Output: red-team-report.md.

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Output

The final deliverable is .claude/scratch/red-team-{session}/red-team-report.md, built from the template at red-team/templates/red-team-report-template.md. Its sections -- Executive Summary, Deep-Review Correlation, Attack Surface Map, Invariant Violations, Prompt Injection ASR Scorecard, Tool/API Fuzzing Results, Authorization Boundary Results, Behavioral Anomalies, Attack Chains, Defense Bypass Rates, Novel Findings, Statistics, Remediation Roadmap -- are specified under Phase 9 in red-team/PHASES.md. ASCII only, UTC dates as YYYY-MM-DD, every finding backed by evidence.

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Does not do

• Does not perform static code analysis -- that is /deep-review. Run /deep-review first

and this skill reuses its discovery and findings.

• Does not test production. Local, test, or staging environments only.
• Does not run destructive operations, denial-of-service, or data exfiltration.
• Does not store credentials or secrets in the report (redact to first 4 / last 4).
• For a combined static + dynamic pass, use /security-audit, which runs /deep-review then

this skill.

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: dndungu
• Source: dndungu/agent-skills
• License: MIT

Install and usage instructions live in the source repository linked above.