security-global-api

security-global-api is a cursor rule for Cursor from AdobeDocs/ff-services-docs. It costs 21 tokens per session (456 once invoked), scanned A, original, Apache-2.0.

A set of rules for designing and reviewing secure web APIs, which are services that applications call over the internet.

In plain words
What is it for?
Use it when planning API versions, login and permissions, API keys, rate limits, request validation, CORS, security tests, and OpenAPI documentation.
Why use it?
It helps prevent weak authentication, excessive access, malformed requests, inconsistent errors, and abuse through too many requests.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

Good fit Use it when planning API versions, login and permissions, API keys, rate limits, request validation, CORS, security tests, and OpenAPI documentation.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/adobedocs/ff-services-docs/security-global-api
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.

Clone the repo
git clone --depth 1 https://github.com/AdobeDocs/ff-services-docs

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 security-global-api

README.md
[![agentmods](https://agentmods.dev/badge/rules/adobedocs/ff-services-docs/security-global-api/github.svg)](https://agentmods.dev/rules/adobedocs/ff-services-docs/security-global-api)
Your own site
<a href="https://agentmods.dev/rules/adobedocs/ff-services-docs/security-global-api"><img src="https://agentmods.dev/badge/rules/adobedocs/ff-services-docs/security-global-api/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for security-global-api

Your own site · 80×15
<a href="https://agentmods.dev/rules/adobedocs/ff-services-docs/security-global-api"><img src="https://agentmods.dev/badge/rules/adobedocs/ff-services-docs/security-global-api.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 21 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 456 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 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 $0.00021 $0.00456
Opus 5.5 $0.00008 $0.00182
Sonnet 5.5 $0.00004 $0.00091
Haiku 4.5 $0.00002 $0.00046

Measured 1mo ago against content hash bc5510baa27b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

security-global-api 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 1mo 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

.cursor/rules/security-global/security-global-api.mdc · 51 lines

What it actually says

API Security

These rules apply to Secure API design and implementation and it is critical for protecting data and services.

Secure API design

  • Version endpoints using semantic versioning (/v1/, /v2/,/v3/,/v4/)
  • Grant only the minimum permissions needed for each endpoint
  • Document required authentication method and specific permission scopes in OpenAPI/Swagger
  • Re-use security patterns across endpoints for consistency
  • Return consistent HTTP status codes and error messages following RFC 7807

Auth & access

  • Require OAuth 2.0 / JWT for user authentication
  • Validate tokens on every request with proper signature verification
  • Enforce Role-Based Access Control (RBAC) or Attribute-Based Access Control (ABAC)
  • Issue API keys with specific scopes for service-to-service calls
  • Implement token refresh with secure rotation

Request protection

  • Apply rate‑limit & throttle
  • Validate request schema using JSON Schema or similar validation
  • Configure CORS to allow only specific origins, methods, and headers
  • Check content-type headers and validate request structure
  • Block parameter pollution attacks by validating parameter names

Security Headers

  • Set X-Content-Type-Options: nosniff
  • Set X-Frame-Options: DENY or X-Frame-Options: SAMEORIGIN
  • Set X-XSS-Protection: 1; mode=block
  • Implement Content Security Policy (CSP) headers
  • Use Strict-Transport-Security for HTTPS enforcement

Test & monitor

  • Run API‑focused security tests
  • Log security findings and fix critical issues
  • Track & fix findings

Anti-Patterns to Avoid

  • Leaking sensitive data in API responses (PII, tokens, internal errors)
  • Allowing insecure direct object references without access checks
  • Serving APIs over HTTP (always use HTTPS)
  • Skipping input validation on any endpoint
  • Revealing stack traces or internal system details in error responses
  • Using weak authentication methods (Basic Auth, API keys without scopes)
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. 1mo ago First seen · 51 lines · 21 tokens per session scan A bc5510baa27b

Subscribe to this mod's changes

security-global-api is a cursor rule published in the GitHub repository AdobeDocs/ff-services-docs (4 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 21 tokens to every session and 456 once invoked, about $0.0001 per session on Opus 5.5. 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.