Refine Project Context

Update .agents/PROJECT_CONTEXT.md in place based on user feedback or codebase validation. The file must already exist; this skill does not create it from scratch.

Do NOT start implementing. Only update the document (and optionally .agents/TECHNICAL_DEBT.md in challenge mode).

Two modes available — determined by the mode context variable:

• Editor mode (default) — apply specific changes requested by the user.
• Challenger mode (mode = "challenger") — validate PROJECT_CONTEXT.md against the actual codebase, detect discrepancies, and present findings individually for user triage.

Inputs