backend-async-messaging skillA
backend-async-messaging is agent-read markdown (skill) from bekaku/java-spring-boot-starter: Use when adding or changing background work in this Spring Boot backend — @Async methods, RabbitMQ producers or consumers (@RabbitListener), queue topology, @Scheduled jobs, or anything that runs outside the HTTP request thread..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# Backend Async / Messaging — Playbook
> **Role:** HOW to add background work safely. Binding facts + evidence: `skills/backend/ASYNC_MESSAGING.md` (read it too).
> **Requires:** `backend-core`. **Often paired with:** `backend-data` (persistence in the job), `backend-testing`.
## Know this first
- Executor name is `ConstantData.ASYNC_TASK_NAME` (`"asyncExecutor"`) — not `asyncTaskExecutor`.
- There is **no** `@RabbitListener` in the codebase and `@EnableRabbit` is commented out. Adding the first consumer is a design change.
- Off the request thread there is no logged-in user, no audit user, and no caller transaction.
## Recipe A — run work asynchronously
1. Put the method on a Spring bean different from the caller (self-calls bypass the proxy):
```java
@Async(ConstantData.ASYNC_TASK_NAME)
public CompletableFuture<Void> rebuildIndex(Long actorId, Long targetId) { ... }
```
2. Pass `actorId` (and owner/target ids) explicitly. Do not call `AuthUtil#getAuthenticatedUser()` inside.
3. Do DB writes through a `@Transactional` service method called from the async method.
4. Log failures with context (no secrets); decide whether the caller needs the `CompletableFuture`.
…Read the whole file at its exact version.
How to install
mdr add bekaku/java-spring-boot-starter/backend-async-messaging@git:20260924.15dc64amdr add bekaku/java-spring-boot-starter/backend-async-messaging@sha256:64f91bf74af16c41Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_2f4rg6euk4xarcz4)
1 badge views in 30 days
Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260924.15dc64a latest | 2026-09-24 | 15dc64a | 4,002 B | A | view · diff |
| git:20260923.b5acb6d | 2026-09-23 | b5acb6d | 1,870 B | A | view · diff |
| git:20260921.de5eb9f | 2026-09-21 | de5eb9f | 1,145 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4002 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
bekaku/java-spring-boot-starter · 31 stars · license none · pushed 2026-09-24 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_2f4rg6euk4xarcz4 GET https://markdownregistry.com/api/v1/resolve?ref=bekaku/java-spring-boot-starter/backend-async-messaging GET https://markdownregistry.com/api/v1/blob/64f91bf74af16c414e6943a172284853acecd5b026842d87324b741d467c8708
Your agent does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.