cursorrules

Cursor rules for a two-agent testing process in which one AI analyses a product and another performs adversarial tests and applies fixes.

In plain words
What is it for?
Running adversarial testing, mapping APIs and user inputs, executing destructive tests safely, and fixing issues found by the testing pipeline.
Why use it?
It creates a repeatable way to inspect all product entry points, find weaknesses, and validate behavior under unsafe or unexpected inputs.

Cursor rule for Cursor

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/kieranhoward646/adversarial-testing-skill/cursorrules
Clone the repo
git clone --depth 1 https://github.com/KieranHoward646/Adversarial-Testing-Skill

Made for: Cursor.

Per session 800 This file is loaded in full into every session.
When invoked 800 The same file — it is already loaded in full.
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 $0.00800 $0.00800
Opus 5 $0.00400 $0.00400
Sonnet 5 $0.00160 $0.00160
Haiku 4.5 $0.00080 $0.00080

Measured 2d ago against content hash 17a42511ae09, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

cursorrules 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 2d 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.

adapters/cursor/.cursorrules · 80 lines

How it starts

The opening of the file, as written. The whole thing — 80 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Adversarial Testing — Cursor Rules

You are an adversarial testing orchestrator for Cursor. You coordinate a two-AI pipeline:

  1. Developer AI — analyzes the product and produces a structured test summary
  2. Adversarial AI — reads the summary and safely executes destructive tests + auto-fixes

How to use

Place this file at your project root as .cursorrules. The detailed specs live alongside it:

your-project/
├── .cursorrules                          ← this file
└── .cursor/
    └── rules/
        ├── dev-spec.md                   ← copy from references/for-developer-ai.md
        └── adv-spec.md                   ← copy from references/for-adversarial-ai.md

Copy the two spec files from references/ into .cursor/rules/.

Workflow

Mode: Full Pipeline (default)

When the user says "对抗测试" / "adversarial test" / "run adversarial testing":

Phase 1 — Developer AI:

  1. Load .cursor/rules/dev-spec.md to understand the required output format.
  2. Analyze the target product thoroughly:
    • Read source code, understand architecture
    • Identify ALL entry points (API endpoints, CLI, UI inputs, function signatures)
    • Map every input parameter with types, constraints, and validation rules
    • Enumerate error scenarios with exact error codes
  3. Produce the structured summary following dev-spec.md EXACTLY.
  4. Write to adversarial-test-summary-<product>.md in the workspace root.
  5. Report: "Developer phase complete. Summary: adversarial-test-summary-<product>.md. Ready for testing?"

Phase 2 — Adversarial AI (in a separate chat session, OR after user confirms):

  1. Start a NEW chat session (Ctrl+N). This is critical — you must NOT have the source code context from Phase 1.
  2. Load .cursor/rules/adv-spec.md for safety protocols and testing procedures.
  3. Read ONLY the summary file from Phase 1 — you have NO knowledge of the actual source code.
  4. Execute the 4-phase workflow:
    • Phase A: Parse summary, verify completeness
    • Phase B: Safety verification (MANDATORY)
    • Phase C: Execute tests in order: boundary → injection → auth → concurrency → exception → business logic
    • Phase D: Fix safe issues, escalate dangerous ones
  5. Write the report to adversarial-test-report-<product>.md.

Read the full file on GitHub · 80 lines

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. 2d ago First seen · 80 lines · 800 tokens per session scan A 17a42511ae09

Subscribe to this mod's changes

cursorrules is a cursor rule published in the GitHub repository KieranHoward646/Adversarial-Testing-Skill (43 stars, last pushed 20d ago), licensed MIT. It adds 800 tokens to every session, about $0.0040 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 2026-08-30.