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Agent skill

Sentry Reliability Patterns

by jeremylongshore in jeremylongshore/tons-of-skills-marketplace

Build reliable Sentry integrations with graceful degradation, circuit breakers, and offline queuing.

MITAuto-check passedDevOps & Cloud

Install Sentry Reliability Patterns

skills CLI
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill sentry-reliability-patterns -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install jeremylongshore/tons-of-skills-marketplace sentry-reliability-patterns --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/.curated/sentry-reliability-patterns .claude/skills/sentry-reliability-patterns && rm -rf skills-src

Use ~/.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/

Facts

Skill name
sentry-reliability-patterns
GitHub stars
2.8k
Token cost
~1.7k tokens
SKILL.md length
666 words
Files
9 (incl. references)
Skills in repo
3,342
Repo updated
First seen
Licence
MIT

At a glance

Build reliable Sentry integrations with graceful degradation, circuit breakers, and offline queuing.

  • Works in 3 steps: Safe Initialization with Graceful… → Circuit Breaker for Sentry Outages → Offline Queue, Custom Transport, and…
  • Implementing fault-tolerant error tracking
  • SKILL.md covers Overview, Prerequisites, Instructions and Output, plus 4 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Sentry Reliability Patterns is an agent skill from jeremylongshore/tons-of-skills-marketplace. Build reliable Sentry integrations with graceful degradation, circuit breakers, and offline queuing. Use when implementing fault-tolerant error tracking, handling SDK initialization failures, building retry logic for Sentry transports, or ensuring apps survive Sentry outages. Trigger with "sentry reliability", "sentry circuit breaker", "sentry offline queue", "sentry graceful degradation", "sentry failover", or "resilient sentry setup".

Its SKILL.md is about 1.7k tokens, which your agent loads only when the skill is triggered. The skill folder holds 9 other files, including reference files (for example `references/circuit-breaker-pattern.md`, `references/dual-write-pattern.md` and `references/errors.md`). Compatibility notes: Designed for Claude Code

It sits in DevOps & Cloud, covering Error handling, Incident response and Backup and disaster recovery. It works with Sentry. The repository describes itself as: Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com. The licence is MIT.

When your agent uses it

  • Implementing fault-tolerant error tracking
  • Handling SDK initialization failures
  • Building retry logic for Sentry transports
  • Ensuring apps survive Sentry outages

Example prompts

  • “sentry reliability”
  • “sentry circuit breaker”
  • “sentry offline queue”
  • “/sentry-reliability-patterns”

Requirements

  • Python 3
  • Compatibility (from SKILL.md): Designed for Claude Code
  • Pre-approved tools (allowed-tools): Read, Write, Edit, Grep, Bash(node:*), Bash(pip:*), Bash(python*:*)

Workflow steps

3 steps, taken from the step headings in SKILL.md.

  1. Safe Initialization with Graceful Degradation
  2. Circuit Breaker for Sentry Outages
  3. Offline Queue, Custom Transport, and Graceful Shutdown

What it can do on your machine

Read from SKILL.md and the folder at commit 80f86df. 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
    • Edit
    • Grep
    • Bash(node:*)
    • Bash(pip:*)
    • Bash(python*:*)

    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

    Links to these hosts (documentation or services it may open):

    • docs.sentry.io
    • status.sentry.io

    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.

  • Compatibility

    Designed for Claude Code

    From compatibility in the SKILL.md frontmatter.

Context cost

Sentry Reliability Patterns loads about 1.7k tokens when it runs, and up to ~9.4k if it reads all its reference files. Until then it costs about 117 tokens; SKILL.md has 666 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~117
When it runs · the whole SKILL.md, loaded when a task matches
~1.7k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~9.4k

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 passed

The automated check found no risky patterns in SKILL.md.

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 jeremylongshore/tons-of-skills-marketplace at commit 80f86df, republished under its MIT licence (© jeremylongshore). 666 words, ~1,733 tokens.

Download SKILL.mdSave it as .claude/skills/sentry-reliability-patterns/SKILL.md (or your agent's skills folder). This skill also uses 8 other files; get the full folder from GitHub.
name
sentry-reliability-patterns
description
Build reliable Sentry integrations with graceful degradation, circuit breakers, and offline queuing. Use when implementing fault-tolerant error tracking, handling SDK initialization failures, building retry logic for Sentry transports, or ensuring apps survive Sentry outages. Trigger with "sentry reliability", "sentry circuit breaker", "sentry offline queue", "sentry graceful degradation", "sentry failover", or "resilient sentry setup".
allowed-tools
Read, Write, Edit, Grep, Bash(node:*), Bash(pip:*), Bash(python*:*)
compatibility
Designed for Claude Code
version
1.51.0
license
MIT
author
Jeremy Longshore <jeremy@intentsolutions.io>
tags
saas, sentry, reliability, resilience, circuit-breaker, offline-queue, graceful-degradation

Sentry Reliability Patterns

Overview

Build Sentry integrations that never take your application down via three pillars: safe initialization with graceful degradation, a circuit breaker that stops hammering Sentry when unreachable, and an offline event queue that buffers errors during outages. Every pattern prioritizes application uptime over telemetry completeness.

Prerequisites

  • @sentry/node v8+ (TypeScript) or sentry-sdk v2+ (Python)
  • A valid Sentry DSN from project settings at sentry.io
  • A fallback logging destination decided (console, file, or external logger)
  • Understanding of your application shutdown lifecycle (signal handlers, container orchestration)

Instructions

Step 1 — Safe Initialization with Graceful Degradation

Wrap Sentry.init() in try/catch so an invalid DSN, network error, or SDK bug never crashes the app. Track initialization state with a boolean flag. Protect beforeSend callbacks with their own error boundary.

Create lib/sentry-safe.ts with initSentrySafe() and captureError(). See graceful-degradation.md for full implementation.

Key rules:

  • Never let Sentry.init() crash the process — wrap in try/catch, set sentryAvailable = false on failure
  • Verify client creation with Sentry.getClient() — invalid DSNs silently produce no client
  • Always log errors locally as baseline before attempting Sentry capture
  • Wrap user-supplied beforeSend hooks in nested try/catch — return raw event on hook failure
Step 2 — Circuit Breaker for Sentry Outages

When Sentry is unreachable, continued attempts waste resources and add latency. Track consecutive failures and trip open after a threshold. After cooldown, enter half-open state and send a single probe.

Implement SentryCircuitBreaker class with closed/open/half-open states. See circuit-breaker-pattern.md for full implementation. Expose state via health-checks.md endpoint.

Key rules:

  • Default: 5 failures to trip open, 60-second cooldown before half-open probe
  • In open state, skip Sentry calls entirely and log to fallback
  • On half-open success, reset to closed with zero failure count
  • Expose getStatus() for health check endpoints and monitoring dashboards
Step 3 — Offline Queue, Custom Transport, and Graceful Shutdown

Buffer events when network is unavailable and replay on reconnect. Use bounded file-based queue to survive restarts. Pair with signal handlers that flush via Sentry.close() before process exit.

Implement three modules:

Key rules:

  • Cap offline queue at 1000 events, evict oldest when full
  • Drain queue on startup and when connectivity restores
  • Call Sentry.close(timeout) before process.exit() — without it, in-flight events are silently dropped
  • For critical errors, use dual-write-pattern.md to send to multiple destinations via Promise.allSettled
Show full SKILL.md (279 more words)Show less

Output

  • Safe init wrapper catching SDK failures, starting app in degraded mode
  • captureError() with automatic fallback to local logging
  • Circuit breaker stopping sends after repeated failures, self-healing after cooldown
  • Health check endpoint exposing SDK status and circuit breaker state
  • File-based offline queue buffering events during outages, draining on reconnect
  • Signal handlers flushing in-flight events before process exit
  • Custom transport with exponential-backoff retry logic

Error Handling

ErrorCauseSolution
App crashes on Sentry.init()Invalid DSN or SDK bugWrap in try/catch via initSentrySafe()
Events lost on SIGTERMNo Sentry.close() before exitRegister signal handlers with Sentry.close(2000)
Sentry outage cascades latencyEvery error path hits Sentry HTTPCircuit breaker trips after 5 failures
Events lost during network blipSDK drops events silentlyRetry transport + offline queue
Silent event lossSDK fails without throwingHealth check probes with captureMessage + flush
Queue grows unboundedNever drained, Sentry permanently downCap at 1000 events, drain on startup
beforeSend crashes pipelineUser hook throwsNested try/catch, return raw event

See errors.md for extended troubleshooting.

Examples

See examples.md for complete TypeScript and Python integration examples including full-stack wiring of all three patterns.

Resources

Next Steps

  • Emit circuit breaker state changes to observability platform (Datadog, Prometheus) for outage alerting
  • Set up periodic drainQueue() via setInterval (Node) or cron (Python) instead of startup-only
  • Apply retry transport pattern to Python via sentry_sdk.init(transport=...) parameter
  • Test failure modes in staging — simulate Sentry failures with beforeSend to verify circuit breaker behavior
  • Add dual-write for P0/fatal errors to secondary destinations (CloudWatch, PagerDuty)

© jeremylongshore, 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 8 other files (references) in skills/.curated/sentry-reliability-patterns of jeremylongshore/tons-of-skills-marketplace.

  • SKILL.md
  • references/circuit-breaker-pattern.md
  • references/dual-write-pattern.md
  • references/errors.md
  • references/examples.md
  • references/graceful-degradation.md
  • references/health-checks.md
  • references/network-failure-handling.md
  • references/timeout-handling.md

Open the folder on GitHubat commit 80f86df

Compare with similar skills

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Sentry Reliability Patterns compared with similar skills
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Sentry Reliability Patterns this skilljeremylongshore/tons-of-skills-marketplace2.8k—~1.7kAutomated safety check: PassMIT
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Axiom SRE Investigatoropenclaw/clawhub9.5k—~7.1kAutomated safety check: PassMIT
Superset Incident Triagesuperset-sh/superset15k—~1kAutomated safety check: PassCustom licence
Error HandlerEliasOulkadi/shokunin114—~3.6kAutomated safety check: NotesMIT
Msp MaintenanceRTFM-IT-Services-LLC/msp-claude-skills115—~2.6kAutomated safety check: PassCustom licence

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Works with

Categories

Questions about Sentry Reliability Patterns

What does Sentry Reliability Patterns do?

Build reliable Sentry integrations with graceful degradation, circuit breakers, and offline queuing. Sentry Reliability Patterns is an agent skill from jeremylongshore/tons-of-skills-marketplace. Build reliable Sentry integrations with graceful degradation, circuit breakers, and offline queuing.

When should I use Sentry Reliability Patterns?

Sentry Reliability Patterns fits situations like: implementing fault-tolerant error tracking; handling SDK initialization failures; building retry logic for Sentry transports; ensuring apps survive Sentry outages.

How do I install Sentry Reliability Patterns in Claude Code?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill sentry-reliability-patterns -a claude-code`. Or copy the skill folder (skills/.curated/sentry-reliability-patterns in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/sentry-reliability-patterns in your project. Claude Code loads it when a task matches its description.

How do I install Sentry Reliability Patterns in Codex?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill sentry-reliability-patterns -a codex`. Or copy the skill folder (skills/.curated/sentry-reliability-patterns in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/sentry-reliability-patterns in your project. Codex loads it when a task matches its description.

Can I use Sentry Reliability Patterns 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 jeremylongshore/tons-of-skills-marketplace --skill sentry-reliability-patterns -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/sentry-reliability-patterns, .gemini/skills/sentry-reliability-patterns, .github/skills/sentry-reliability-patterns and .opencode/skills/sentry-reliability-patterns in your project.

What does Sentry Reliability Patterns need to run?

SKILL.md names no scripts, command-line tools or credentials: Sentry Reliability Patterns is instructions for the agent only. Our summary lists: Python 3. Its frontmatter pre-approves these tools: Read, Write, Edit, Grep, Bash(node:*), Bash(pip:*), Bash(python*:*). Compatibility (from SKILL.md): Designed for Claude Code.

Does Sentry Reliability Patterns access the network?

SKILL.md names 2 domains. As links in the text: docs.sentry.io and status.sentry.io. This is read from the text; nothing was executed.

Is Sentry Reliability Patterns safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Sentry Reliability Patterns use?

Sentry Reliability Patterns is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Sentry Reliability Patterns use?

About 1.7k tokens (SKILL.md is roughly 6.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 7.6k tokens, read only when the agent opens those files.

What are the alternatives to Sentry Reliability Patterns?

Skills that share tags, products or a category with Sentry Reliability Patterns: Logging Observability (getsentry/toolkit, 918 stars), Axiom SRE Investigator (openclaw/clawhub, 9.5k stars), Superset Incident Triage (superset-sh/superset, 15k stars) and Error Handler (EliasOulkadi/shokunin, 114 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Sentry Reliability Patterns?

jeremylongshore (a GitHub user) maintains it in jeremylongshore/tons-of-skills-marketplace, which has 2,825 GitHub stars. The repository holds 3,342 skills in this directory. The repository was last updated on October 9, 2026.

Source: jeremylongshore/tons-of-skills-marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.