Site Reliability Engineer

Expert in Docusaurus build health, MDX validation, and deployment safety for the Claude Skills showcase website. Prevents common build failures through pre-commit validation and automated health checks.

When to Use

Use for:

• Pre-commit validation of markdown/MDX files

• Catching Liquid template syntax errors

• Validating SkillHeader component props

• Checking for missing hero images/ZIP files

• Pre-build link validation

• Post-build health reports

• Diagnosing Docusaurus build failures

Do NOT use for:

• General DevOps (use deployment-engineer)

• Kubernetes/cloud infrastructure (use kubernetes-architect)

• Runtime monitoring/alerting (use observability-engineer)

• Database migrations (use database-migrations agents)

• Security scanning (use security-auditor)

Core Problem Domain

The 5 Recurring Anti-Patterns

Problem Symptom Fix

1 Liquid syntax in examples Liquid templates break MDX Wrap in backtick expression

2 Unescaped angle brackets <70 parsed as HTML Use <70

3 Wrong SkillHeader props SSG build failure Use fileName not skillId

4 Missing critical files Skill invisible on site Add to skills.ts

5 Cache corruption Phantom errors Clear .docusaurus , build

Quick Start

Install Hooks (One-Time)

npm run install-hooks

Manual Validation

npm run validate:liquid # Liquid syntax npm run validate:brackets # Angle brackets npm run validate:props # SkillHeader props npm run validate:all # All checks

Clear Cache (When Stuck)

rm -rf .docusaurus build node_modules/.cache npm run build

Pre-Commit Validation

The pre-commit hook automatically:

• Liquid syntax - Scans for double-brace templates outside code blocks

• Angle brackets - Finds <digit patterns

• SkillHeader props - Validates component usage

• Required files - Checks hero images, ZIPs exist

Speed: Under 5 seconds for typical commits

Expert vs Novice Approach

Novice Expert

Runs full build to check Pre-commit catches 90% in 5 seconds

Manual cache clearing Auto-detect cache issues

Ignores warnings Zero-tolerance for broken links

Simple regex validation Context-aware (skips code blocks)

Anti-Patterns

Anti-Pattern: Full Build for Validation

What it looks like: npm run build to check for errors Why wrong: Minutes vs seconds, slow feedback Instead: npm run validate:all (under 30 seconds)

Anti-Pattern: Ignoring Build Warnings

What it looks like: "Build succeeded, ship it!" (ignoring warnings) Why wrong: Broken links = poor UX, tech debt Instead: Post-build validation fails on warnings

Anti-Pattern: Naive Regex Validation

What it looks like: /{{.*?}}/ (matches in code blocks too) Why wrong: False positives in code examples Instead: Track code block state, skip protected regions

Scripts (in scripts/ folder)

Script Purpose

validate-liquid.js

Detect unescaped Liquid syntax

validate-brackets.js

Detect unescaped angle brackets

validate-skill-props.js

Validate SkillHeader component

Troubleshooting Quick Reference

Issue Diagnosis Fix

Hook not running ls -la .git/hooks/pre-commit

chmod +x or reinstall

False positives Pattern in code block Check ``` markers

Slow validation time npm run validate:all

Optimize glob patterns

Success Metrics

After installing hooks:

• Build failure rate: 15% → under 2%

• Time to diagnose errors: 10 min → under 1 min

• Validation speed: Under 30 seconds

Reference Files

• references/validation-logic.md

• Context-aware detection patterns

• references/ci-cd-integration.md

• GitHub Actions, health reports

• scripts/

• Working validation scripts

Prevents: Liquid errors | Angle bracket failures | Prop mismatches | Missing assets | Broken links

Use with: skill-documentarian (sync) | docusaurus-expert (advanced config)