messenger-retry-failures SKILL.md skillA
messenger-retry-failures from dev-toolings/superpowers-symfony is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add dev-toolings/superpowers-symfony/messenger-retry-failures@git:20261005.51f9253Pins git:20261005.51f9253 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- dev-toolings/superpowers-symfony
- Path
content/skills/messenger-retry-failures/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261005.51f9253, committed Oct 5, 2026
- First version recorded
- Sep 17, 2026
- Size
- 2,266 bytes
- Repository stars
- 231
- License
- MIT
Handle message failures with retry strategies, failure transport, and recovery in Symfony Messenger (Recoverable/Unrecoverable exceptions).
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Messenger Retry Failures (Symfony) ## Use when - A handler fails and you must decide between retrying and giving up. - Tuning `retry_strategy` (`max_retries`, `delay`, `multiplier`, `max_delay`) for a transport. - Inspecting, retrying, or removing messages in the failure transport. - Alerting when a message fails for good. ## Default workflow 1. Classify each failure: `UnrecoverableMessageHandlingException` when retrying cannot help, `RecoverableMessageHandlingException` when the cause is transient. 2. Set `retry_strategy` per transport and point `failure_transport` to a dedicated queue. 3. Implement `RetryStrategyInterface` only when the built-in backoff is not enough, and register it through `retry_strategy.service`. 4. Make the handler idempotent, with a stable idempotency key for external calls. 5. Triage with `messenger:failed:show`, then `messenger:failed:retry` or `messenger:failed:remove`. 6. Subscribe to `WorkerMessageFailedEvent` and alert only when `willRetry()` is false. ## Guardrails - Never retry what cannot succeed, such as invalid input or a declined card. - Keep `max_retries` modest (3-5 usually) with exponential backoff, so a failing service is not hammered. …
Read the whole file at its exact version.
How to install
mdr add dev-toolings/superpowers-symfony/messenger-retry-failures@sha256:ba3b304f2c1d4042The line at the top of this page pins the label git:20261005.51f9253, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_gkayvg6z2xiarfs2)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Sep 17, 2026 and Oct 5, 2026, about one every 9 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261005.51f9253 latest | 2026-10-05 | 51f9253 | 2,266 B | A | view · diff |
| git:20261005.042befb | 2026-10-05 | 042befb | 1,238 B | A | view · diff |
| git:20260917.3d83f4c | 2026-09-17 | 3d83f4c | 1,267 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 (2266 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
dev-toolings/superpowers-symfony · 231 stars · license MIT · pushed 2026-10-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_gkayvg6z2xiarfs2 GET https://markdownregistry.com/api/v1/resolve?ref=dev-toolings/superpowers-symfony/messenger-retry-failures GET https://markdownregistry.com/api/v1/blob/ba3b304f2c1d4042e0088ee5e428eccf9f4bfb138575ad91e13b0a65ae185b43
Your AI assistant 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.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.