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.
git clone --depth 1 https://github.com/beel-collab/presets.devWrote 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.
[](https://agentmods.dev/rules/beel-collab/presets.dev/spring-rules)<a href="https://agentmods.dev/rules/beel-collab/presets.dev/spring-rules"><img src="https://agentmods.dev/badge/rules/beel-collab/presets.dev/spring-rules/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.
<a href="https://agentmods.dev/rules/beel-collab/presets.dev/spring-rules"><img src="https://agentmods.dev/badge/rules/beel-collab/presets.dev/spring-rules.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00000 | $0.01255 |
| Opus 5.5 | $0.00000 | $0.00502 |
| Sonnet 5.5 | $0.00000 | $0.00251 |
| Haiku 4.5 | $0.00000 | $0.00126 |
Grade A, and why
spring-rules 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 today.
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.
How it starts
The opening of the file, as written. The whole thing — 129 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Spring Boot Rules for Cursor: Injection, Transactions and Validation
Install
Install the native export at .cursor/rules/spring-rules.mdc.
Copy that export, not this catalog file. Catalog fields such as tools and author are for presets.dev.
Install one skill file per name. Cursor, GitHub Copilot, Codex, Antigravity CLI, and Devin can all read .agents/skills, so a second copy with the same name collides.
Spring Boot Rules for Cursor: Injection, Transactions and Validation
File-scoped Cursor rule for Spring Boot. It attaches when a matching file is in context.
Updated for Spring Boot 4.1, Nov 2026
Do not upgrade dependencies or the framework version unless the task asks.
Stay on the Spring Boot and JDK the build already uses. For a new service, Boot 4.1 is the stable line to write for. Do not add an M, RC, or SNAPSHOT version because a blog shows it. A lazy DataSource connection is an option you turn on for a reason, not a default you copy into every app. Read pom.xml or build.gradle before you add a starter.
Project shape
A web app splits controller, application service, and persistence. The controller maps HTTP. The service owns the use case and the transaction. The repository talks to the database. Do not put business rules in the controller.
Constructor injection is the default. Do not use field injection. A new bean is a constructor argument, not a static lookup.
Validation and HTTP
Validate input with the project's Bean Validation annotations on the request DTO. A controller checks the binding result the way neighbors do. Do not trust a path id as proof the caller owns the row. Load the row and authorize.
Return the status the API already uses. A not-found and a forbidden are different. Do not catch every exception and return 200.
Transactions and data
@Transactional sits on the service method that must commit or roll back together. Spring applies it with a proxy. A call from another method in the same class, this.save(), does not pass through that proxy, so @Transactional and @Async on the callee do not run. The same is true for a private method. Call through an injected bean, or move the boundary to the method that is actually invoked from outside. Do not call a remote HTTP API inside the transaction. Keep the transaction short.
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.
- today First seen · 129 lines · 0 tokens per session scan A 8229d4abd3db
spring-rules is a cursor rule published in the GitHub repository beel-collab/presets.dev (3 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,255 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 2026-11-13.
spring-rules compared with cursor rules from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| spring-rulesbeel-collab/presets.dev | Cursor rule | 3 | yesterday | MIT | A | 0 | Cursor |
| ponytailDietrichGebert/ponytail | Cursor rule | 190k | 15d ago | MIT | A | 604 | Cursor |
| angular-20angular/angular | Cursor rule | 101k | today | MIT | A | 0 | Cursor |
| dev-standardapache/superset | Cursor rule | 76k | today | Apache-2.0 | A | 1,147 | Cursor |
| prefer-direct-imports-over-module-mocksprisma/orm | Cursor rule | 48k | today | Apache-2.0 | A | 0 | Cursor |
| config-validation-and-normalizationprisma/orm | Cursor rule | 48k | today | Apache-2.0 | A | 0 | Cursor |
| control-plane-descriptorsprisma/orm | Cursor rule | 48k | today | Apache-2.0 | A | 0 | Cursor |