This directory contains pure resolvers that read repository state (git history, role metadata, version tags, input environment variables) and emit resolved values either via $GITHUB_OUTPUT or stdout. Resolvers MUST be idempotent and MUST NOT mutate repository or registry state beyond writing to $GITHUB_OUTPUT. The covered concerns are distro selection for push CI, diff-driven app whitelist resolution, release-tag parsing, app discovery for the deploy matrix, and change detection that gates the update pipeline.

For the workflow catalog that consumes these outputs see workflows.md. For the diff-driven whitelist contract see the "Diff-driven app selection" section in pipeline.md.