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SPECIFICTION
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Bumpy

github.com

Free plan API
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Spec score 7.8 #7 of 34 in Release automation tools

Spec sheet

Purpose
Bumpy is a package versioning, release, and changelog generation tool built for monorepos and also usable in simpler projects.Read 5 Oct 2026 · github.com
License
The project is released under the MIT license, which grants permission to use, copy, modify, distribute, and sell copies subject to the license conditions.Read 5 Oct 2026 · github.com
Maker
DMNO Inc. identifies Bumpy as one of its products; its site names Theo Ephraim and Phil Miller as founders.Read 5 Oct 2026 · dmno.io
AI tooling
Bumpy includes an agent skill for creating and updating bump files and lists compatibility with Claude Code, Cursor, OpenCode, Codex, and other agents.Read 5 Oct 2026 · github.com
Dependency propagation
Configurable rules control how version bumps cascade through the package dependency graph.Read 5 Oct 2026 · github.com
Installation
The repository documents installing @varlock/bumpy as a development dependency with Bun, npm, pnpm, or Yarn.Read 5 Oct 2026 · github.com
Known roadmap limits
The roadmap lists a standalone binary and better support for non-JavaScript packages as future work.Read 5 Oct 2026 · github.com
Package managers
Bumpy supports npm, pnpm, Yarn, and Bun workspaces, including workspace: and catalog: protocols.Read 5 Oct 2026 · github.com
Publishing targets
Per-package custom publish commands can target destinations such as VSCode extensions, Docker images, JSR, and private registries.Read 5 Oct 2026 · github.com
Release automation
Two GitHub Actions workflows can check pull requests, maintain a release pull request, and publish packages when that release pull request is merged.Read 5 Oct 2026 · github.com
Release options
It supports aggregated GitHub releases, branch-based prerelease channels, commit-based bump-file generation, and pluggable changelog formatters.Read 5 Oct 2026 · github.com
Security-related design
The repository says Bumpy uses OIDC and staged publishing, and does not require a separate GitHub action or app.Read 5 Oct 2026 · github.com
Workflow
It uses Markdown bump files to declare package bump levels and changelog descriptions, which can be reviewed in pull requests.Read 5 Oct 2026 · github.com

Plans and prices

Bumpy Free MIT-licensed software · no paid plans or usage limits stated Read 5 Oct 2026 · github.com

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