igmarin/rails-engine-release
skills/engines/rails-engine-release/SKILL.md
Use when preparing a Rails engine gem release. Generates CHANGELOG.md entries, produces step-by-step upgrade notes for host apps, sets semantic version constants, verifies gemspec metadata, confirms test suite passes, and sequences gem build and publish commands. Trigger words: version bump, changelog, deprecation, gemspec, upgrade, migration guide, release, publish gem, ship gem, verify gemspec, test suite.
$ install --global
skillsauthnpx skillsauth add igmarin/rails-agent-skills rails-engine-releaseInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
Security Scan Results
3 of 9 scanners reported clean
Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
3
Scanners Passed
9
Scanners in report
Clean
TrivyContainer and dependency vulnerability scanner
95%
Clean
SemgrepStatic code analysis for vulnerabilities
95%
Clean
mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
Skipped
Socket.devSupply chain security analysis
50%
Skipped
VirusTotalMulti-engine malware detection
50%
Skipped
CrowdStrikeAdvanced threat intelligence
50%
Skipped
OSV-ScannerOpen Source Vulnerability database check
50%
Skipped
OWASP Dep-Check
50%
Last scanned: May 7, 2026, 2:59 AM199.7s5 files scanned
SKILL.md
- name:
- rails-engine-release
- license:
- MIT
- description:
- >
- and publish commands. Trigger words:
- version bump, changelog, deprecation,
- version:
- 1.0.0
- user-invocable:
- true
Rails Engine Release
Use this skill when the task is to ship a Rails engine as a gem or prepare a new version.
HARD-GATE
DO NOT release without updating CHANGELOG and version file.
Versioning & Quick Reference
| Bump | When to use | Action | |------|-------------|--------| | Patch | Bug fixes and internal changes without public behavior breakage | Update version constant, document under Fixed | | Minor | Backward-compatible features and new extension points | Update version constant, document under Added/Changed | | Major | Breaking changes to API, setup, routes, migrations, config, or supported framework versions | Update version constant, document under Changed/Deprecated; write explicit upgrade notes |
If the engine requires host changes during upgrade, document them explicitly even if the version bump is minor.
Release Order
- Confirm scope and compatibility impact — is this patch, minor, or major?
- Run full test suite:
bundle exec rspec. Fix all failures before proceeding. - Set the version bump — update the version constant once:
module MyEngine; VERSION = "1.2.0"; endinlib/my_engine/version.rb. - Update changelog and upgrade notes.
- Verify gemspec metadata and dependencies match tested Rails/Ruby versions.
- Dry-run the gem build:
gem build *.gemspec && gem push --dry-run *.gem. Verify contents. - Confirm installation docs and README match the release — update if needed.
- Publish:
gem push *.gem.
Changelog Guidelines
- Document user-visible changes, not commits; group by Added/Changed/Fixed/Deprecated.
- For deprecations, document removal plan and replacement; keep deprecated code for at least one minor cycle.
Examples
## [1.2.0] - 2024-03-15
### Added
- `widget_count` config option to limit dashboard widgets (default: 10).
### Changed
- Minimum Rails version is now 7.0.
See assets/examples.md for a full changelog entry and upgrade note template.
Extended Resources (Progressive Disclosure)
Load these files only when their specific content is needed:
- assets/release_checklist.md — Use when you need a detailed step-by-step verification checklist before finalizing the release
- assets/release_notes_template.md — Use when drafting GitHub release notes or long-form release announcements
- assets/examples.md — Reference for full changelog entries and upgrade note templates
Output Style
When asked to prepare a release, produce a release summary ready for team lead review, with code blocks for all file changes. Required deliverables:
- Version bump recommendation — patch/minor/major with explicit reasoning
- Version constant — updated
lib/<engine>/version.rb - CHANGELOG entries — under Added/Changed/Fixed/Deprecated headers
- Upgrade notes — host app steps (config, migrations, dependencies)
- Gemspec verification — metadata, files, and dependency ranges confirmed
- Test suite status — pass/fail result of
bundle exec rspec - Release blockers — open issues, or explicitly "No blockers"
Integration
| Skill | When to chain | |-------|---------------| | rails-engine-docs | When updating README, setup instructions, or API docs for the release | | rails-engine-compatibility | When verifying Rails/Ruby version support or deprecation impact | | rails-engine-testing | When ensuring tests pass before release and match documented behavior |
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