What problem does it solve? Bug fixes often ship as partial patches that pass tests but leave the real defect, its sibling occurrences, and unwired code paths in place. This Skill enforces an evidence-first, full-resolution workflow that takes an issue from intake and reproduction through root-cause localization, independent plan critique, implementation review, and PR-ready closure. ## Core Features & Use Cases - Phased investigation protocol: Intake, reproduction, reasoning-guided localization, fix planning, and gated implementation with mandatory artifacts at every phase. - Independent critic gates: Plan critic, implementation review, and final critic run in fresh contexts to refute the work before closure, with SHA-bound review freshness. - Recurrence-class eradication: Sweeps the codebase for the defect class, dispositions every hit, and installs a guardrail (lint rule, type constraint, runtime assertion, or CI check) proven to catch regressions. - Use Case: Given a GitHub issue reporting a crash, the Skill reproduces it, localizes the fault to the exact line, drafts a reviewed fix plan, implements the minimal patch after approval, sweeps for sibling defects, and produces a PR body mapping every acceptance criterion to captured command output. ## Quick Start Ask the agent to investigate and fully resolve issue number 1849 using the issue-tracer workflow, starting with reproduction and a reviewed fix plan before any code changes.
