# Librel

> librel - Release management tools. VersionBumper handles semver version bumping for packages. ChangeDetector identifies changed packages between git commits. StackQuery retrieves CloudFormation stack outputs for deployments. Use for release automation, CI/CD pipelines, and deployment orchestration.

- Skill: `majiayu000/librel` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add majiayu000/librel`
- Raw SKILL.md: https://api.skillmd.com/api/skills/majiayu000/librel/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: DevOps & Infra
- Author: majiayu000 (https://skillmd.com/u/majiayu000)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/majiayu000/librel

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# librel Skill

## When to Use

- Bumping package versions (major/minor/patch)
- Detecting which packages changed between commits
- Retrieving CloudFormation outputs for deployment
- Automating release workflows

## Key Concepts

**VersionBumper**: Updates package.json version following semver rules.

**ChangeDetector**: Compares git refs to identify modified packages.

**StackQuery**: Retrieves AWS CloudFormation stack outputs for deployment
config.

## Usage Patterns

### Pattern 1: Bump version

```javascript
import { VersionBumper } from "@copilot-ld/librel";

const bumper = new VersionBumper("./packages/libagent");
await bumper.bump("minor"); // 1.0.0 -> 1.1.0
```

### Pattern 2: Detect changes

```javascript
import { ChangeDetector } from "@copilot-ld/librel";

const detector = new ChangeDetector(".");
const changed = await detector.getChangedPackages("main", "HEAD");
// ["libagent", "libmemory"]
```

## Integration

Used by CI/CD scripts for release automation and change detection.