312-frameworks-spring-data-jdbc

312-frameworks-spring-data-jdbc is a skill for Claude Code, Codex from jabrena/cursor-rules-examples. It costs 57 tokens per session (356 once invoked), scanned A, original, Apache-2.0.

Guidance for using Spring Data JDBC with Java records. Spring Data JDBC is a Java library for saving application data in a relational database, while records are compact, usually immutable data classes.

In plain words
What is it for?
Use it when reviewing or changing Java code that uses Spring Data JDBC and records. It requires a compile check before changes and full verification afterward.
Why use it?
It helps developers design entities, repositories, relationships, queries, and transactions consistently, while avoiding repeated database queries known as the N+1 problem.

Skill for Claude CodeCodex

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 skills/jabrena/cursor-rules-examples/312-frameworks-spring-data-jdbc
Any agent
npx skills add jabrena/cursor-rules-examples --skill 312-frameworks-spring-data-jdbc
Clone the repo
git clone --depth 1 https://github.com/jabrena/cursor-rules-examples

Made for: Claude Code, Codex.

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 312-frameworks-spring-data-jdbc

README.md
[![agentmods](https://agentmods.dev/badge/skills/jabrena/cursor-rules-examples/312-frameworks-spring-data-jdbc.svg)](https://agentmods.dev/skills/jabrena/cursor-rules-examples/312-frameworks-spring-data-jdbc)
Your own site
<a href="https://agentmods.dev/skills/jabrena/cursor-rules-examples/312-frameworks-spring-data-jdbc"><img src="https://agentmods.dev/badge/skills/jabrena/cursor-rules-examples/312-frameworks-spring-data-jdbc.svg" alt="Measured on agentmods" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 356 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 $0.00057 $0.00356
Opus 5 $0.00028 $0.00178
Sonnet 5 $0.00011 $0.00071
Haiku 4.5 $0.00006 $0.00036

Measured 5d ago against content hash 2bf61edca504, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

312-frameworks-spring-data-jdbc 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 5d 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.

.agents/skills/312-frameworks-spring-data-jdbc/SKILL.md · 42 lines

What it actually says

Spring Data JDBC with Records

Apply Spring Data JDBC guidelines with Java records.

What is covered in this Skill?

  • Records for entity classes
  • Repository pattern
  • Immutable updates
  • Aggregate relationships
  • Custom queries
  • Transaction management
  • Single query loading (N+1 avoidance)

Scope: Apply recommendations based on the reference rules and good/bad code examples.

Constraints

Before applying any Spring Data JDBC changes, ensure the project compiles. If compilation fails, stop immediately. After applying improvements, run full verification.

  • MANDATORY: Run ./mvnw compile or mvn compile before applying any change
  • SAFETY: If compilation fails, stop immediately
  • VERIFY: Run ./mvnw clean verify or mvn clean verify after applying improvements
  • BEFORE APPLYING: Read the reference for detailed rules and good/bad patterns

When to use this skill

  • Review Java code for Spring Data JDBC
  • Apply best practices for Spring Data JDBC in Java code

Reference

For detailed guidance, examples, and constraints, see references/312-frameworks-spring-data-jdbc.md.

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 5d ago First seen · 42 lines · 57 tokens per session scan A 2bf61edca504

Subscribe to this mod's changes

312-frameworks-spring-data-jdbc is a skill published in the GitHub repository jabrena/cursor-rules-examples (2 stars, last pushed 9d ago), licensed Apache-2.0. It adds 57 tokens to every session and 356 once invoked, about $0.0003 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 2026-08-31.

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