Wallfacer spec change impact analysis

★ 7.0 · general

wf-spec-impact is a Claude Code skill from the Wallfacer platform (changkun/wallfacer) that performs impact analysis on specification changes within a project. Wallfacer is an open-source autonomous engineering platform that runs locally with no IDE lock-in or cloud dependency, treating specs as a structured intermediate representation between ideas and code — a recursive tree of markdown specs that agents read, iterate on, break down, and dispatch as tasks. The wf-spec-impact skill fits into this workflow by helping assess how modifications to one spec propagate through related parts of the system, which matters when managing a complex, interconnected spec tree across a seven-state lifecycle. It is most useful for teams that need to understand the blast radius of design changes before committing to parallel task execution.