metasploit-cursor-harness: Skill for Cursor

.cursor/skills/graphql-pentest/SKILL.md

graphql-pentest is a skill for Cursor from Suzu-Testing/metasploit-cursor-harness. It costs 42 tokens per session (1,766 once invoked), scanned A, original, MIT.

A guide for testing GraphQL APIs, a way for applications to request structured data, for injection and access-control weaknesses.

In plain words
What is it for?
Use it to discover GraphQL endpoints, inspect or infer their schema, map queries and mutations, test object access, rate-limit bypasses, and injected variables.
Why use it?
It gives a repeatable method for examining exposed schemas and checking whether queries, batching, or nested requests bypass security controls.

Skill for Cursor

Written for Cursor: installed under .cursor/.

This is Suzu-Testing/metasploit-cursor-harness's own configuration. It tells Cursor how to work on metasploit-cursor-harness itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything metasploit-cursor-harness configures →

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is grep -r "persistedQuery" ./client-js/.

Reuse

Borrowing it

Nothing to install: this file belongs to Suzu-Testing/metasploit-cursor-harness. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Suzu-Testing/metasploit-cursor-harness/main/.cursor/skills/graphql-pentest/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Suzu-Testing/metasploit-cursor-harness

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 graphql-pentest

README.md
[![agentmods](https://agentmods.dev/badge/skills/suzu-testing/metasploit-cursor-harness/graphql-pentest.svg)](https://agentmods.dev/skills/suzu-testing/metasploit-cursor-harness/graphql-pentest)
Your own site
<a href="https://agentmods.dev/skills/suzu-testing/metasploit-cursor-harness/graphql-pentest"><img src="https://agentmods.dev/badge/skills/suzu-testing/metasploit-cursor-harness/graphql-pentest.svg" alt="Measured on agentmods" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,766 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 2 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00042 $0.01766
Opus 5 $0.00021 $0.00883
Sonnet 5 $0.00008 $0.00353
Haiku 4.5 $0.00004 $0.00177

Measured 7d ago against content hash 24a9860818c9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

graphql-pentest scanned grade A with 2 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 7d 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.

Sends data to an external URLlowData exfiltration

A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.

curl -X POST "http://<target>/graphql" -H "Content-Type: application/json" -d '{"query":"{__typename}"}'

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -X POST "http://<target>/graphql" -H "Content-Type: application/json" -d '{"query":"{__typename}"}'
.cursor/skills/graphql-pentest/SKILL.md · 238 lines

How it starts

The opening of the file, as written. The whole thing — 238 lines — stays where its author put it; the contents beside it link to each section on GitHub.

GraphQL Injection Pentest

Prerequisites

  • Target is in scope (scope/scope-master.txt, engagement ROE).
  • Load web-app-pentest for overall web testing context.

Triggers

  • Endpoints at /graphql, /graphiql, /api/graphql, or similar paths
  • POST bodies with "query": "..." JSON structure
  • GraphiQL or GraphQL Playground interfaces exposed
  • Introspection or schema suggestion errors in responses
  • Nested query syntax in API traffic

Workflow

Task Progress:
- [ ] Discover endpoint (GET/POST); probe with introspection query
- [ ] Run introspection or schema suggestion/bruteforce if disabled
- [ ] Map queries/mutations; test IDOR on arguments
- [ ] Test batching for rate-limit bypass; inject in variables
- [ ] Document with request/response evidence

Detection

Endpoint discovery and introspection

CLI (primary for web vulns):

python3 graphw00f.py -d -t http://<target>/graphql
python3 graphqlmap.py -u http://<target>/graphql --method POST
curl -X POST "http://<target>/graphql" -H "Content-Type: application/json" -d '{"query":"{__typename}"}'

MSF MCP:

msf_run_auxiliary_module(
  module_name="auxiliary/scanner/http/graphql_introspection",
  engagement_id="<id>",
  options={"RHOSTS": "<target>", "TARGETURI": "/graphql", "SCHEMA": "true"}
)

Full introspection query

CLI (primary):

{__schema{types{name kind fields{name type{name kind ofType{name kind}}}}}}

MSF MCP: Same graphql_introspection module with SCHEMA: "true".

Schema enumeration via suggestions

CLI (primary):

python3 clairvoyance.py http://<target>/graphql -w wordlist.txt
curl -X POST "http://<target>/graphql" -d '{"query":"{ usre { id name } }"}'

Typo triggers Did you mean "user"? revealing valid fields.

MSF MCP: No direct module when introspection disabled.

Exploitation by variant

IDOR via arguments

CLI (primary):

curl -X POST "http://<target>/graphql" -H "Authorization: Bearer <token>" \
  -d '{"query":"{ user(id: \"1002\") { email password } }"}'

Read the full file on GitHub · 238 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. 7d ago First seen · 238 lines · 42 tokens per session scan A 24a9860818c9

Subscribe to this mod's changes

graphql-pentest is a skill published in the GitHub repository Suzu-Testing/metasploit-cursor-harness (3 stars, last pushed 13d ago), licensed MIT. It adds 42 tokens to every session and 1,766 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 2 findings (sends data to an external url, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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