How

Build a senior-engineer working model of a subsystem from the code that runs it. Explain the architecture and runtime flow without turning the answer into annotated source.

Choose a mode

• Explain is the default for “how does this work?” questions.
• Place answers ownership and layering questions such as “where should this live?” Trace the relevant architecture before recommending a boundary.
• Critique applies when the user also asks what is architecturally wrong or worth improving. Complete the explanation before judging the design.

Explain workflow

1. Frame the question

Identify the target, desired depth, and likely entry point. For an ambiguous target, state the best interpretation from the conversation and repository context; ask only when different interpretations would require different investigations.

Classify the scope: