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Use when the user says "/backfill-feature", "backfill the ADR", "this feature has no ADR", "I need to document what's already there before I change it", or wants to capture an existing feature's architectural rationale and behaviour *before* modifying it. Reads the relevant code, drafts a reverse-engineered ADR (what is, why it probably looks like this) + Gherkin spec (current behaviour) + characterization tests that lock the current behaviour green. Hands off to /plan-change so the actual change can be layered on top of a documented, tested baseline.
backfill-feature is an agent skill entry in ChatHome Skills, sourced from GitHub Skill Search and scored 58/100. # backfill-feature - characterize existing code before changing it When you reach to modify code that has no ADR or spec, you're working blind: you don't know w. As an agent skill, it packages a reusable instruction set that AI coding agents such as Codex and Claude Code can load to perform this task without hand-written glue code. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. The install command above is ready to copy. Review the last-pushed date and repository status before adding backfill-feature to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.
codex skill install 0xdeafcafe/skillsReview the upstream source before running this command.
Scan coverage: Install metadata and the indexed document body.
Automated signals from install metadata and a bounded skill body — not a full code security audit and not a recursive source or dependency review.
# backfill-feature - characterize existing code before changing it When you reach to modify code that has no ADR or spec, you're working blind: you don't know what the original aut