circleci

CircleCI cloud CI/CD platform. Use for continuous integration.

7 stars

byG1Joshi

View on GitHub Installation ↓

Best use case

circleci is best used when you need a repeatable AI agent workflow instead of a one-off prompt.

CircleCI cloud CI/CD platform. Use for continuous integration.

Teams using circleci should expect a more consistent output, faster repeated execution, less prompt rewriting.

When to use this skill

You want a reusable workflow that can be run more than once with consistent structure.

When not to use this skill

You only need a quick one-off answer and do not need a reusable workflow.
You cannot install or maintain the underlying files, dependencies, or repository context.

Installation

Claude Code / Cursor / Codex

$curl -o ~/.claude/skills/circleci/SKILL.md --create-dirs "https://raw.githubusercontent.com/G1Joshi/Agent-Skills/main/skills/devops/circleci/SKILL.md"

Manual Installation

Download SKILL.md from GitHub
Place it in .claude/skills/circleci/SKILL.md inside your project
Restart your AI agent — it will auto-discover the skill

How circleci Compares

Feature / Agent	circleci	Standard Approach
Platform Support	Not specified	Limited / Varies
Context Awareness	High	Baseline
Installation Complexity	Unknown	N/A

Frequently Asked Questions

What does this skill do?

CircleCI cloud CI/CD platform. Use for continuous integration.

Where can I find the source code?

You can find the source code on GitHub using the link provided at the top of the page.

SKILL.md Source

# CircleCI

CircleCI is a cloud-native CI/CD platform focused on speed and parallelism. In 2025, **Dynamic Config** and **Orbs** are the key drivers of efficiency.

## When to Use

- **Speed**: Best-in-class caching, test splitting, and parallelism.
- **Complexity**: Dynamic Configuration allows pipelines to change structure based on changed files (Monorepo support).
- **Compliance**: FedRAMP / SOC2 compliance is strong.

## Quick Start

```yaml
# .circleci/config.yml
version: 2.1
orbs:
  node: circleci/node@5.1
jobs:
  build:
    executor: node/default
    steps:
      - checkout
      - node/install-packages:
          pkg-manager: npm
      - run: npm run test

workflows:
  build-and-test:
    jobs:
      - build
```

## Core Concepts

### Orbs

Shareable packages of config. `circleci/aws-s3@3.0` encapsulates 500 lines of bash into one line of YAML.

### Test Splitting

Intelligently divides test files across N parallel nodes to reduce build time from 30m to 3m.

### Dynamic Config (2025)

A setup workflow generates the _real_ workflow. Allows logic like "If only /backend changed, don't run frontend tests".

## Best Practices (2025)

**Do**:

- **Use Dynamic Config**: Essential for monorepos to save credits.
- **Use Contexts**: Securely share secrets across projects (e.g., `AWS_CREDS`).
- **Use `docker` executor**: It is faster than `machine` executor for most tasks.

**Don't**:

- **Don't reinvent the wheel**: Check the Orb Registry before writing custom commands.

## References

- [CircleCI Documentation](https://circleci.com/docs/)