restcontroller-conventions

restcontroller-conventions is a cursor rule for Cursor from paulpham157/paul-s-cursor-rules. It costs 0 tokens per session (169 once invoked), scanned A, original, MIT.

Rules for Java Spring Boot REST controllers, which receive HTTP requests and return API responses. They cover routes, HTTP methods, dependency use, response objects, and error handling.

In plain words
What is it for?
Use them when creating or reviewing REST API endpoints for actions such as creating, reading, updating, and deleting data.
Why use it?
They keep API endpoints consistent and give failures a shared handling path instead of scattering error responses across controllers.

Cursor rule for Cursor

Written for Cursor: a Cursor rule (.mdc).

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/paulpham157/paul-s-cursor-rules/restcontroller-conventions
Clone the repo
git clone --depth 1 https://github.com/paulpham157/paul-s-cursor-rules

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 restcontroller-conventions

README.md
[![agentmods](https://agentmods.dev/badge/rules/paulpham157/paul-s-cursor-rules/restcontroller-conventions.svg)](https://agentmods.dev/rules/paulpham157/paul-s-cursor-rules/restcontroller-conventions)
Your own site
<a href="https://agentmods.dev/rules/paulpham157/paul-s-cursor-rules/restcontroller-conventions"><img src="https://agentmods.dev/badge/rules/paulpham157/paul-s-cursor-rules/restcontroller-conventions.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 169 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 $0.00000 $0.00169
Opus 5 $0.00000 $0.00084
Sonnet 5 $0.00000 $0.00034
Haiku 4.5 $0.00000 $0.00017

Measured 2d ago against content hash 84af4f00b872, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

restcontroller-conventions 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.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

1/framework_rules/rules/java-springboot-jpa-cursorrules-prompt-file/restcontroller-conventions.mdc · 11 lines

What it actually says


description: Specifies standards for RestController classes, including API route mappings, HTTP method annotations, dependency injection, and error handling with ApiResponse and GlobalExceptionHandler. globs: **/src/main/java/com/example/controllers/*.java

  • Must annotate controller classes with @RestController.
  • Must specify class-level API routes with @RequestMapping, e.g. ("/api/user").
  • Class methods must use best practice HTTP method annotations, e.g, create = @postMapping("/create"), etc.
  • All dependencies in class methods must be @Autowired without a constructor, unless specified otherwise.
  • Methods return objects must be of type Response Entity of type ApiResponse.
  • All class method logic must be implemented in a try..catch block(s).
  • Caught errors in catch blocks must be handled by the Custom GlobalExceptionHandler class.
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 · 11 lines · 169 tokens per session scan A 84af4f00b872

Subscribe to this mod's changes

restcontroller-conventions is a cursor rule published in the GitHub repository paulpham157/paul-s-cursor-rules (27 stars, last pushed 1y ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 169 tokens. 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 2026-09-03.