sidekiq-expert

sidekiq-expert is an agent for Claude Code from 0xfurai/claude-code-subagents. It costs 24 tokens per session (460 once invoked), scanned A, original, MIT.

A coding guide for Sidekiq, a Ruby system for running background jobs outside the main web request. It covers queues, retries, worker scaling, concurrency, monitoring, logging, memory use, and security.

In plain words
What is it for?
Use it to configure worker queues, prioritize jobs, retry failures, limit concurrency, scale workers, monitor execution, and reduce memory use.
Why use it?
It helps prevent slow or failed background work from disrupting the main application and makes job processing easier to monitor and control.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

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 agents/0xfurai/claude-code-subagents/sidekiq-expert
Clone the repo
git clone --depth 1 https://github.com/0xfurai/claude-code-subagents

Made for: Claude Code.

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 sidekiq-expert

README.md
[![agentmods](https://agentmods.dev/badge/agents/0xfurai/claude-code-subagents/sidekiq-expert.svg)](https://agentmods.dev/agents/0xfurai/claude-code-subagents/sidekiq-expert)
Your own site
<a href="https://agentmods.dev/agents/0xfurai/claude-code-subagents/sidekiq-expert"><img src="https://agentmods.dev/badge/agents/0xfurai/claude-code-subagents/sidekiq-expert.svg" alt="Measured on agentmods" height="20"></a>
Per session 24 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 460 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 5.1 $0.00024 $0.00460
Opus 5 $0.00012 $0.00230
Sonnet 5 $0.00005 $0.00092
Haiku 4.5 $0.00002 $0.00046

Measured 2d ago against content hash f41d821084a5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

sidekiq-expert 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 2d 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/sidekiq-expert.md · 57 lines

What it actually says

Focus Areas

  • Advanced configuration of Sidekiq for optimal performance
  • Queue prioritization and management
  • Failover strategies for job reliability
  • Monitoring and logging of job execution
  • Error handling and retry mechanisms
  • Rate limiting and concurrency control
  • Scaling strategies for Sidekiq workers
  • Managing memory usage and reducing bloat
  • Utilization of Sidekiq Pro and Enterprise features
  • Security best practices for Sidekiq setup

Approach

  • Configure multiple queues with priority to manage job execution order
  • Utilize Sidekiq's retry and dead job features for robustness
  • Implement effective monitoring with Sidekiq's Web UI and alerts
  • Optimize concurrency using Sidekiq's built-in features
  • Leverage Sidekiq's middleware for logging and metrics
  • Configure environment-specific settings in YAML files
  • Periodically evaluate and tune worker pool sizes
  • Use custom error handling strategies for job retries
  • Regularly update and audit for security compliance
  • Document all configurations and changes made to Sidekiq setup

Quality Checklist

  • All queues are properly prioritized and optimized
  • Retry strategies tested and verified for robustness
  • Monitoring systems in place and actively alerting
  • Sidekiq Web UI is regularly reviewed for insights
  • Middleware for logging and metrics is effectively used
  • Regular audits on security configurations
  • Worker pool sizes are optimized for load
  • Rate limiting is correctly configured
  • Sidekiq Pro features are effectively leveraged
  • Documentation is thorough and up-to-date

Output

  • Optimized Sidekiq configuration files ready for deployment
  • Clear priority settings for job queues
  • Comprehensive error handling and retry strategies
  • Active logging and metrics collection
  • Set up for monitoring dashboards and alerts
  • Thorough documentation of all Sidekiq configurations
  • Scalable architecture for increasing job load
  • Deployment scripts with environment-specific settings
  • Regularly revised security policies and practices
  • Updated process documentation for ongoing operations
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. 2d ago First seen · 57 lines · 24 tokens per session scan A f41d821084a5

Subscribe to this mod's changes

sidekiq-expert is an agent published in the GitHub repository 0xfurai/claude-code-subagents (996 stars, last pushed 10mo ago), licensed MIT. It adds 24 tokens to every session and 460 once invoked, about $0.0001 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 2026-09-03.