Point rails-preflight at a Rails app and a target version. It reads the lockfile, .ruby-version, Dockerfile, db/schema.rb and config, and scans Ruby, ERB, HAML and Slim files for removed APIs, then writes a single HTML report: blockers, items to fix, what it couldn't check, and a suggested path with one step per Rails minor version. The same findings print as Markdown for coding agents or JSON for CI. Read-only and static. It never modifies the app, runs it, or runs its tests.
Required Ruby Version
>= 2.7.0
Authors
Syed Aslam
Versions
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0.1.2
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source
- 0.1.2 source October 13, 2026 (51.5 KB)
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0.1.1
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source
- 0.1.1 source October 09, 2026 (50.5 KB)
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0.1.0
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source
- 0.1.0 source October 09, 2026 (49.5 KB)
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