Agent skill

Apex Azure Reliability

by jonathan-vella in jonathan-vella/apex

ANALYSIS SKILL — Read-only reliability assessment for App Service and Azure Functions: zone redundancy, ZRS storage, health probes and multi-region failover.

MITAuto-check passedDevOps & Cloud

Install Apex Azure Reliability

skills CLI
$ npx skills add jonathan-vella/apex --skill apex-azure-reliability -a claude-code

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

GitHub CLI
$ gh skill install jonathan-vella/apex apex-azure-reliability --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/jonathan-vella/apex.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.github/skills/apex-azure-reliability .claude/skills/apex-azure-reliability && 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
apex-azure-reliability
GitHub stars
217
Token cost
~2.4k tokens
SKILL.md length
634 words
Files
7 (incl. references)
Skills in repo
39
Repo updated
First seen
Licence
MIT

At a glance

ANALYSIS SKILL — Read-only reliability assessment for App Service and Azure Functions: zone redundancy, ZRS storage, health probes and multi-region failover.

  • Works in 3 steps: Discover Resources → Assess Reliability → Build the Reliability Checklist
  • Deploys (06b/06t)
  • SKILL.md covers Quick Reference, MCP Tools, Rules and Assessment Workflow, plus 4 more sections
  • Calls az and kind

What it does

Apex Azure Reliability is an agent skill from jonathan-vella/apex. ANALYSIS SKILL — Read-only reliability assessment for App Service and Azure Functions: zone redundancy, ZRS storage, health probes and multi-region failover. WHEN: "assess reliability", "zone redundant", "multi-region failover", "single points of failure", "disaster recovery readiness". DO NOT USE FOR: fixes or deploys (06b/06t), troubleshooting (apex-azure-diagnostics).

Its SKILL.md is about 2.4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 10 other files, including reference files (for example `references/health-probe-checks.md`, `references/multi-region-checks.md` and `references/services/app-service/reliability.md`).

It sits in DevOps & Cloud, covering Backup and disaster recovery. It works with Microsoft Azure, Azure Functions and Model Context Protocol. The repository describes itself as: APEX turns Azure platform engineering requirements into verified, deploy-ready IaC — powered by GitHub Copilot agents, real-time pricing, and built-in compliance. The licence is MIT.

When your agent uses it

  • Deploys (06b/06t)
  • Troubleshooting (apex-azure-diagnostics)

Example prompts

  • “assess reliability”
  • “zone redundant”
  • “multi-region failover”
  • “/apex-azure-reliability”

Workflow steps

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

  1. Discover Resources
  2. Assess Reliability
  3. Build the Reliability Checklist

What it can do on your machine

Read from SKILL.md and the folder at commit b8e5908. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • az
    • kind

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use az, which can reach the network depending on how they are called.

    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

Apex Azure Reliability loads about 2.4k tokens when it runs, and up to ~9.8k if it reads all its reference files. Until then it costs about 100 tokens; SKILL.md has 634 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~100
When it runs · the whole SKILL.md, loaded when a task matches
~2.4k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~9.8k

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 jonathan-vella/apex at commit b8e5908, republished under its MIT licence (© jonathan-vella). 634 words, ~2,356 tokens.

Download SKILL.mdSave it as .claude/skills/apex-azure-reliability/SKILL.md (or your agent's skills folder). This skill also uses 6 other files; get the full folder from GitHub.
name
apex-azure-reliability
description
**ANALYSIS SKILL** — Read-only reliability assessment for App Service and Azure Functions: zone redundancy, ZRS storage, health probes and multi-region failover. WHEN: "assess reliability", "zone redundant", "multi-region failover", "single points of failure", "disaster recovery readiness". DO NOT USE FOR: fixes or deploys (06b/06t), troubleshooting (apex-azure-diagnostics).
user-invocable
true
disable-model-invocation
false
argument-hint
resource group, subscription or app name to assess
license
MIT
metadata.author
Microsoft
metadata.version
1.1.1

Azure Reliability Assessment

Adapted from upstream azure-reliability. This skill assesses the reliability posture of deployed App Service and Azure Functions resources and returns findings. It never changes resources, patches IaC or deploys: fixes flow through 05-IaC Planner and 06b/06t.

Quick Reference

PropertyDetails
Best forReliability findings for 08-As-Built and 09-Diagnose
Supported servicesAzure Functions, App Service (Container Apps: noted, not assessed)
Query methodAzure Resource Graph (az graph query, needs the resource-graph extension)
PermissionsReader on the target scope
Failover regiongermanywestcentral (APEX default), primary swedencentral

MCP Tools

ToolPurpose
mcp_azure-mcp_extension_cli_generateGenerate read-only az commands for resource queries
mcp_azure-mcp_subscription_listList available subscriptions
mcp_azure-mcp_group_listList resource groups

Rules

  1. Scope every query to the user's resource group (| where resourceGroup =~ '<rg-name>'), subscription (--subscriptions <sub-id>) or app (| where name =~ '<app-name>').
  2. Run read-only commands only. Record each gap as a finding with the target setting from the service reference.
  3. Never print app setting values or connection strings; query setting names only.
  4. Resources without a service reference (Container Apps and others) are listed as ⚪ not assessed — never invent commands or settings for them.
  5. Don't assign numeric scores or grades. Price plan or redundancy changes only through cost-estimate-subagent.

Assessment Workflow

Phase 1: Discover Resources
  1. Identify the scope (resource group, subscription or app name).
  2. Query Azure Resource Graph for every resource in scope.
  3. Classify resources by service type; note unsupported compute without a deep dive.
Phase 2: Assess Reliability

Platform discovery first:

Platform checkReference
Zone redundancy — discoveryzone-redundancy-checks.md
Storage redundancy (cross-service)storage-redundancy-checks.md
Multi-region and global load balancersmulti-region-checks.md
Front Door / Traffic Manager / App Insights probeshealth-probe-checks.md

Then a per-service deep dive:

Service detectedReference
Azure Functions (microsoft.web/serverfarms with kind contains 'functionapp')services/functions/reliability.md
App Service (microsoft.web/sites and microsoft.web/serverfarms without functionapp)services/app-service/reliability.md
Container Apps (microsoft.app/containerapps, microsoft.app/managedenvironments)⚪ Not assessed
Phase 3: Build the Reliability Checklist

Present a feature-pivoted table with four rows in this order: Zone redundancy — compute, Zone-redundant storage, Health probes, Multi-region failover. Each row has one status and the relevant resources:

  • 🟢 ON — enabled on every relevant resource; 🟡 PARTIAL — some resources or partial configuration; 🔴 OFF — missing everywhere. For storage, show the SKU instead of OFF (🔴 LRS, 🔴 GRS, 🟢 ZRS, 🟢 GZRS).
  • List only relevant resources, one bullet each, with a short reason ((FC1), (defaulted; no SKU set)). Credit resources that are already compliant with — already ON.
  • Drop a row only when no resource in scope could apply to it. No n/a cells.
text
Reliability Assessment — {scope}
Reliability Feature          Status      Resources
Zone redundancy — compute    🔴 OFF      • plan-web-{suffix} (P1v3)
Zone-redundant storage       🔴 GRS      • st{suffix} (defaulted; no SKU set in IaC)
Health probes                🟡 PARTIAL  • app-web-{suffix} — already ON
                                         • func-api-{suffix} — needs code change (FC1)
Multi-region failover        🔴 OFF      • Single region (swedencentral) — Front Door not configured
Show full SKILL.md (234 more words)Show less

Priority Classification

PriorityCriteriaOwner action
CriticalNo zone redundancy AND production workloadRaise with the IaC owner now
HighLRS storage on zone-redundant computePlan the change within days
MediumSingle region but zone-redundantPlan for the next change window
LowMissing health probes or monitoring gapsTrack and fix

Reliability Findings

Return findings to the calling agent; never write a standalone reliability artifact.

CallerArtifactSections that receive findings
08-As-Built07-backup-dr-plan.mdExecutive Summary availability row; 1. Recovery Objectives; 2. Backup Strategy; 3. Disaster Recovery Procedures; 4. Testing Schedule
08-As-Built07-design-document.md8. Backup & Disaster Recovery
09-Diagnose08-resource-health-report.mdIssues Identified (by severity); Prevention Recommendations; Next Steps

Each finding states the resource, the current state, the target setting and its priority. Multi-region designs go to 05-IaC Planner as a recommendation; don't start multi-region work without explicit user consent.

Error Handling

ErrorRemediation
Authentication requiredAsk the user to run az login locally, then retry
Access deniedConfirm a Reader role assignment on the scope
Plan doesn't support ZRRecord the plan upgrade path; price it through cost-estimate-subagent
Region doesn't support AZRecord the limitation; suggest a zone-capable region

Reference Index

ReferenceWhen to Load
references/zone-redundancy-checks.mdCompute zone redundancy discovery
references/storage-redundancy-checks.mdStorage replication checks and targets
references/multi-region-checks.mdMulti-region deployment and global load balancers
references/health-probe-checks.mdFront Door, Traffic Manager and App Insights probes
references/services/functions/reliability.mdAzure Functions plan rules and targets
references/services/app-service/reliability.mdApp Service plan rules and targets

© jonathan-vella, 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 6 other files (references) in .github/skills/apex-azure-reliability of jonathan-vella/apex.

  • SKILL.md
  • references/health-probe-checks.md
  • references/multi-region-checks.md
  • references/services/app-service/reliability.md
  • references/services/functions/reliability.md
  • references/storage-redundancy-checks.md
  • references/zone-redundancy-checks.md

Open the folder on GitHubat commit b8e5908

Compare with similar skills

Apex Azure Reliability 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.

Apex Azure Reliability compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Apex Azure Reliability this skilljonathan-vella/apex217—~2.4kAutomated safety check: PassMIT
Azure Reliabilitymicrosoft/GitHub-Copilot-for-Azure2551 repos~5.9kAutomated safety check: PassMIT
Azure Upgrademicrosoft/GitHub-Copilot-for-Azure2551 repos~1.5kAutomated safety check: PassMIT
Microsoft Foundrymicrosoft/GitHub-Copilot-for-Azure2551 repos~6.7kAutomated safety check: PassMIT
Azure Data API BuilderMicrosoftDocs/Agent-Skills776—~4.3kAutomated safety check: PassCC-BY-4.0
Terravision Cloud Diagramspatrickchugh/terravision1.6k—~5.6kAutomated safety check: NotesAGPL-3.0-only

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Categories

Questions about Apex Azure Reliability

What does Apex Azure Reliability do?

ANALYSIS SKILL — Read-only reliability assessment for App Service and Azure Functions: zone redundancy, ZRS storage, health probes and multi-region failover. Apex Azure Reliability is an agent skill from jonathan-vella/apex. ANALYSIS SKILL — Read-only reliability assessment for App Service and Azure Functions: zone redundancy, ZRS storage, health probes and multi-region failover.

When should I use Apex Azure Reliability?

Apex Azure Reliability fits situations like: deploys (06b/06t); troubleshooting (apex-azure-diagnostics).

How do I install Apex Azure Reliability in Claude Code?

Run `npx skills add jonathan-vella/apex --skill apex-azure-reliability -a claude-code`. Or copy the skill folder (.github/skills/apex-azure-reliability in jonathan-vella/apex) into .claude/skills/apex-azure-reliability in your project. Claude Code loads it when a task matches its description.

How do I install Apex Azure Reliability in Codex?

Run `npx skills add jonathan-vella/apex --skill apex-azure-reliability -a codex`. Or copy the skill folder (.github/skills/apex-azure-reliability in jonathan-vella/apex) into .agents/skills/apex-azure-reliability in your project. Codex loads it when a task matches its description.

Can I use Apex Azure Reliability 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 jonathan-vella/apex --skill apex-azure-reliability -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/apex-azure-reliability, .gemini/skills/apex-azure-reliability, .github/skills/apex-azure-reliability and .opencode/skills/apex-azure-reliability in your project.

What does Apex Azure Reliability need to run?

Going by SKILL.md and its folder, Apex Azure Reliability needs the command-line tools its instructions call (az and kind).

Does Apex Azure Reliability 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 Apex Azure Reliability 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 Apex Azure Reliability use?

Apex Azure Reliability 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 Apex Azure Reliability use?

About 2.4k tokens (SKILL.md is roughly 9.4k 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 7.4k tokens, read only when the agent opens those files.

What are the alternatives to Apex Azure Reliability?

Skills that share tags, products or a category with Apex Azure Reliability: Azure Reliability (microsoft/GitHub-Copilot-for-Azure, 255 stars), Azure Upgrade (microsoft/GitHub-Copilot-for-Azure, 255 stars), Microsoft Foundry (microsoft/GitHub-Copilot-for-Azure, 255 stars) and Azure Data API Builder (MicrosoftDocs/Agent-Skills, 776 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Apex Azure Reliability?

jonathan-vella (a GitHub user) maintains it in jonathan-vella/apex, which has 217 GitHub stars. The repository holds 39 skills in this directory. The repository was last updated on October 10, 2026.

Source: jonathan-vella/apex on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.