Individual skill

ci-cd-pipeline-optimizer

Audits CI/CD workflows (GitHub Actions, GitLab CI) to implement caching, parallelization, and cut build durations.

skills/productivity/ci-cd-pipeline-optimizer/SKILL.md

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## Purpose

Analyze and optimize continuous integration and deployment pipelines (GitHub Actions, GitLab CI, CircleCI) to dramatically cut build minutes, reduce compute costs, eliminate redundant jobs, and speed up developer feedback loops.

## When to Use

- CI pipelines take >15 minutes, slowing down pull request velocity.
- GitHub Actions monthly billing bills are spiking.
- Investigating non-deterministic flaky steps or cache-miss penalties.

## What to Analyze

1. **Dependency & Build Caching**: Caching `node_modules`, `~/.cargo`, `~/.m2`, Go build cache, Docker build layers (Buildx / GitHub Actions Cache backend).
2. **Job Parallelization & Matrix Builds**: Running lint, typecheck, unit tests, and E2E suites concurrently instead of sequentially.