Add a 7-module instruction set for an agent that fixes bugs and UI/layout
defects (role, task, input contract, process, output contract, quality gate,
examples) under docs/instruction/agent/, plus a condensed skill_library entry
so the app can load it from the Skill Manager.
The modules encode the working principles this project expects: understand the
code first, fix the root cause rather than the symptom, keep the diff minimal,
change no behavior outside the requirement, follow the existing architecture
(ADR-001 4-tier layering) and patterns, and judge changes on compatibility,
security, maintainability and testability. Unresolved points must be recorded
as Assumption, Open Question or Limitation instead of being decided silently.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>