Spring Boot Cache

What it does

When your agent uses it

• Adding caching to Spring Boot services
• Configuring cache expiration
• Evicting stale data
• Diagnosing cache misses

Example prompts

• “Use the spring-boot-cache skill to provide patterns for implementing Spring Boot caching: configures Redis/Caffeine/EhCache providers with TTL and…”
• “/spring-boot-cache”

Requirements

• Pre-approved tools (allowed-tools): Read, Write, Bash

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

1. 1Add dependencies — spring-boot-starter-cache plus a provider
2. 2Enable caching — annotate a @Configuration class with @EnableCaching
3. 3Annotate methods — @Cacheable for reads, @CachePut for writes,
4. 4Configure TTL/eviction — set spring.cache.caffeine.spec,
5. 5Shape keys — use SpEL in key attributes; guard with
6. 6Validate setup — run integration test to confirm cache hit on second

What it can do on your machine

Read from SKILL.md and the folder at commit fe73fb3. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves these tools, so the agent can use them without asking each time:

  • Read
  • Write
  • Bash

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  No scripts in the folder and no shell commands in SKILL.md (its code samples are java).

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Spring Boot Cache loads about 1.4k tokens when it runs, and up to ~15k if it reads all its reference files. Until then it costs about 100 tokens; SKILL.md has 463 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~100

When it runs · the whole SKILL.md, loaded when a task matches

~1.4k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~15k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

• NotePre-approves every shell command (allowed-tools: Bash)SKILL.md

  allowed-tools: Read, Write, Bash

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from giuseppe-trisciuoglio/developer-kit at commit fe73fb3, republished under its MIT licence (© giuseppe-trisciuoglio). 463 words, ~1,373 tokens.

name

spring-boot-cache

description

Provides patterns for implementing Spring Boot caching: configures Redis/Caffeine/EhCache providers with TTL and eviction policies, applies @Cacheable/@CacheEvict/@CachePut annotations, validates cache hit/miss behavior, and exposes metrics via Actuator. Use when adding caching to Spring Boot services, configuring cache expiration, evicting stale data, or diagnosing cache misses.

allowed-tools

Read, Write, Bash

@Service
@CacheConfig(cacheNames = "users")
class UserService {

    @Cacheable(key = "#id", unless = "#result == null")
    User findUser(Long id) { ... }
}

First call → cache miss, repository invoked
Second call → cache hit, repository skipped

@Cacheable(value = "products", key = "#id", condition = "#price > 100")
public Product getProduct(Long id, BigDecimal price) { ... }

// Only expensive products are cached

@CacheEvict(value = "users", key = "#id")
public void deleteUser(Long id) { ... }

© giuseppe-trisciuoglio, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 4 other files (references) in plugins/developer-kit-java/skills/spring-boot-cache of giuseppe-trisciuoglio/developer-kit.

• SKILL.md
• references/cache-core-reference.md
• references/cache-examples.md
• references/spring-cache-doc-snippet.md
• references/spring-framework-cache-docs.md

Open the folder on GitHubat commit fe73fb3