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Handle message failures with retry strategies, failure transport, and recovery in Symfony Messenger (Recoverable/Unrecoverable exceptions)
MITAuto-check: notes
Install Messenger Retry Failures
$ npx skills add dev-toolings/superpowers-symfony --skill messenger-retry-failures -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install dev-toolings/superpowers-symfony messenger-retry-failures --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/dev-toolings/superpowers-symfony.git skills-src && mkdir -p .claude/skills && cp -r skills-src/content/skills/messenger-retry-failures .claude/skills/messenger-retry-failures && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "messenger-retry-failures" agent skill from https://github.com/dev-toolings/superpowers-symfony/tree/main/content/skills/messenger-retry-failures into .claude/skills/messenger-retry-failures/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "messenger-retry-failures", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/dev-toolings/superpowers-symfony/tree/main/content/skills/messenger-retry-failuresType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add dev-toolings/superpowers-symfony --skill messenger-retry-failures -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install dev-toolings/superpowers-symfony messenger-retry-failures --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dev-toolings/superpowers-symfony.git skills-src && mkdir -p .agents/skills && cp -r skills-src/content/skills/messenger-retry-failures .agents/skills/messenger-retry-failures && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "messenger-retry-failures" agent skill from https://github.com/dev-toolings/superpowers-symfony/tree/main/content/skills/messenger-retry-failures into .agents/skills/messenger-retry-failures/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "messenger-retry-failures", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add dev-toolings/superpowers-symfony --skill messenger-retry-failures -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install dev-toolings/superpowers-symfony messenger-retry-failures --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dev-toolings/superpowers-symfony.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/content/skills/messenger-retry-failures .cursor/skills/messenger-retry-failures && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "messenger-retry-failures" agent skill from https://github.com/dev-toolings/superpowers-symfony/tree/main/content/skills/messenger-retry-failures into .cursor/skills/messenger-retry-failures/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "messenger-retry-failures", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/dev-toolings/superpowers-symfony.git --path content/skills/messenger-retry-failures--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add dev-toolings/superpowers-symfony --skill messenger-retry-failures -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install dev-toolings/superpowers-symfony messenger-retry-failures --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dev-toolings/superpowers-symfony.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/content/skills/messenger-retry-failures .gemini/skills/messenger-retry-failures && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "messenger-retry-failures" agent skill from https://github.com/dev-toolings/superpowers-symfony/tree/main/content/skills/messenger-retry-failures into .gemini/skills/messenger-retry-failures/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "messenger-retry-failures", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install dev-toolings/superpowers-symfony messenger-retry-failuresInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add dev-toolings/superpowers-symfony --skill messenger-retry-failures -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/dev-toolings/superpowers-symfony.git skills-src && mkdir -p .github/skills && cp -r skills-src/content/skills/messenger-retry-failures .github/skills/messenger-retry-failures && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "messenger-retry-failures" agent skill from https://github.com/dev-toolings/superpowers-symfony/tree/main/content/skills/messenger-retry-failures into .github/skills/messenger-retry-failures/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "messenger-retry-failures", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add dev-toolings/superpowers-symfony --skill messenger-retry-failures -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install dev-toolings/superpowers-symfony messenger-retry-failures --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dev-toolings/superpowers-symfony.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/content/skills/messenger-retry-failures .opencode/skills/messenger-retry-failures && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "messenger-retry-failures" agent skill from https://github.com/dev-toolings/superpowers-symfony/tree/main/content/skills/messenger-retry-failures into .opencode/skills/messenger-retry-failures/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "messenger-retry-failures", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
messenger-retry-failures- GitHub stars
- 222
- Token cost
- ~566 tokens
- SKILL.md length
- 240 words
- Files
- 2
- Skills in repo
- 44
- Repo updated
- First seen
- Licence
- MIT
At a glance
Handle message failures with retry strategies, failure transport, and recovery in Symfony Messenger (Recoverable/Unrecoverable exceptions)
- Works in 6 steps: Classify each failure:… → Set retry_strategy per transport and… → Implement RetryStrategyInterface only… → …
- SKILL.md covers Use when, Default workflow, Guardrails and Progressive disclosure, plus 2 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Messenger Retry Failures is an agent skill from dev-toolings/superpowers-symfony. Handle message failures with retry strategies, failure transport, and recovery in Symfony Messenger (Recoverable/Unrecoverable exceptions)
Its SKILL.md is about 570 tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `reference.md`).
It works with Symfony. The repository describes itself as: Claude Code plugin for Symfony 7.4 LTS & 8.x — 44 skills, 7 AI subagents & 13 commands for API Platform v4, Doctrine ORM 3, TDD (Pest/PHPUnit), Messenger, security & DDD. The licence is MIT.
Example prompts
- “/messenger-retry-failures”
Requirements
- Pre-approved tools (allowed-tools): Read, Glob, Grep, Write, Edit, Bash
Workflow steps
6 steps, taken from the first numbered list in SKILL.md.
- Classify each failure: UnrecoverableMessageHandlingException when retrying cannot help, RecoverableMessageHandlingException when the cause…
- Set retry_strategy per transport and point failure_transport to a dedicated queue.
- Implement RetryStrategyInterface only when the built-in backoff is not enough, and register it through retry_strategy.service.
- Make the handler idempotent, with a stable idempotency key for external calls.
- Triage with messenger:failed:show, then messenger:failed:retry or messenger:failed:remove.
- Subscribe to WorkerMessageFailedEvent and alert only when willRetry() is false.
What it can do on your machine
Read from SKILL.md and the folder at commit 459bcd0. 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:
ReadGlobGrepWriteEditBash
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
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
Messenger Retry Failures loads about 566 tokens when it runs. Until then it costs about 41 tokens; SKILL.md has 240 words of instructions outside code blocks.
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
Auto-check: notes
The automated check noted patterns worth knowing about, such as sudo or a known installer.
- NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
allowed-tools: Read, Glob, Grep, Write, Edit, 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 dev-toolings/superpowers-symfony at commit 459bcd0, republished under its MIT licence (© dev-toolings). 240 words, ~566 tokens.
Download SKILL.mdSave it as
.claude/skills/messenger-retry-failures/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- messenger-retry-failures
- description
- Handle message failures with retry strategies, failure transport, and recovery in Symfony Messenger (Recoverable/Unrecoverable exceptions)
- allowed-tools
- Read, Glob, Grep, Write, Edit, Bash
- capabilities
- read, search, edit, shell
- tags
- messenger
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
- Classify each failure:
UnrecoverableMessageHandlingExceptionwhen retrying cannot help,RecoverableMessageHandlingExceptionwhen the cause is transient. - Set
retry_strategyper transport and pointfailure_transportto a dedicated queue. - Implement
RetryStrategyInterfaceonly when the built-in backoff is not enough, and register it throughretry_strategy.service. - Make the handler idempotent, with a stable idempotency key for external calls.
- Triage with
messenger:failed:show, thenmessenger:failed:retryormessenger:failed:remove. - Subscribe to
WorkerMessageFailedEventand alert only whenwillRetry()is false.
Guardrails
- Never retry what cannot succeed, such as invalid input or a declined card.
- Keep
max_retriesmodest (3-5 usually) with exponential backoff, so a failing service is not hammered. retryDelayandforceRetryon the recoverable exception are marked 8.1+ in the reference, andforceRetry: truegoes pastmax_retries: verify the version before relying on them.messenger:failed:retryis interactive unless--force: read the message with-vvfirst.
Progressive disclosure
- Use this file for execution posture and risk controls.
- Open references when deep implementation details are needed.
Output contract
- The exception class chosen for each failure mode of the handler.
- Retry settings per transport, and the failure transport.
- The failed-message runbook (show, retry, remove) and the alert on final failure.
References
reference.md
© dev-toolings, 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 1 other file in content/skills/messenger-retry-failures of dev-toolings/superpowers-symfony.
- SKILL.md
- reference.md
Open the folder on GitHubat commit 459bcd0
Compare with similar skills
Messenger Retry Failures next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Messenger Retry Failures this skilldev-toolings/superpowers-symfony | 222 | — | ~566 | Automated safety check: Notes | MIT | |
| Sync Translationssymfony/symfony | 31k | — | ~1.9k | Automated safety check: Pass | MIT | |
| Bug Triagesymfony/symfony | 31k | — | ~1.9k | Automated safety check: Pass | MIT | |
| Merge Upsymfony/symfony | 31k | — | ~4k | Automated safety check: Pass | MIT | |
| PR Mergesymfony/symfony | 31k | — | ~3.1k | Automated safety check: Pass | MIT | |
| Security Triagesymfony/symfony | 31k | — | ~2.6k | Automated safety check: Pass | MIT |
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PR Merge
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Merge a reviewed pull request the way the Symfony core team does: one --no-ff merge commit per PR, whose message archives the whole discussion, with the review gates checked first.
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Review a change (a PR, the current branch diff, or a set of files) or audit a component or the whole tree for missing or incorrect security hardening.
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Related
Works with
Questions about Messenger Retry Failures
What does Messenger Retry Failures do?
Handle message failures with retry strategies, failure transport, and recovery in Symfony Messenger (Recoverable/Unrecoverable exceptions). Messenger Retry Failures is an agent skill from dev-toolings/superpowers-symfony.
How do I install Messenger Retry Failures in Claude Code?
Run `npx skills add dev-toolings/superpowers-symfony --skill messenger-retry-failures -a claude-code`. Or copy the skill folder (content/skills/messenger-retry-failures in dev-toolings/superpowers-symfony) into .claude/skills/messenger-retry-failures in your project. Claude Code loads it when a task matches its description.
How do I install Messenger Retry Failures in Codex?
Run `npx skills add dev-toolings/superpowers-symfony --skill messenger-retry-failures -a codex`. Or copy the skill folder (content/skills/messenger-retry-failures in dev-toolings/superpowers-symfony) into .agents/skills/messenger-retry-failures in your project. Codex loads it when a task matches its description.
Can I use Messenger Retry Failures in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add dev-toolings/superpowers-symfony --skill messenger-retry-failures -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/messenger-retry-failures, .gemini/skills/messenger-retry-failures, .github/skills/messenger-retry-failures and .opencode/skills/messenger-retry-failures in your project.
What does Messenger Retry Failures need to run?
SKILL.md names no scripts, command-line tools or credentials: Messenger Retry Failures is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Glob, Grep, Write, Edit, Bash.
Does Messenger Retry Failures access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Messenger Retry Failures safe to install?
Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
What licence does Messenger Retry Failures use?
Messenger Retry Failures is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Messenger Retry Failures use?
About 566 tokens (SKILL.md is roughly 2.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Messenger Retry Failures?
Skills that share tags, products or a category with Messenger Retry Failures: Sync Translations (symfony/symfony, 31k stars), Bug Triage (symfony/symfony, 31k stars), Merge Up (symfony/symfony, 31k stars) and PR Merge (symfony/symfony, 31k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Messenger Retry Failures?
dev-toolings (a GitHub organization) maintains it in dev-toolings/superpowers-symfony, which has 222 GitHub stars. The repository holds 44 skills in this directory. The repository was last updated on October 5, 2026.
Source: dev-toolings/superpowers-symfony on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.