Differentiated rubrics by assignment type

# Differentiated rubrics by assignment type

Should the GA apply different rubrics depending on what kind of writing it's grading? Specifically:

- Thesis-driven essays vs 5-paragraph essays — different structural expectations.
- Daily pages vs polished essays — different goals (exploration vs final product).

## Problem

Today the GA appears to apply a single rubric across all writing it grades. Reported tensions:

- Daily pages students want feedback (Mar 6 + Feb 27), but daily-pages criteria likely should differ from essay criteria — a free-write isn't supposed to have a thesis.
- Thesis-driven essays getting docked for not having 3 body paragraphs (see [features/ga-rubric-body-paragraph-flexibility.md](ga-rubric-body-paragraph-flexibility.md)) — the rubric assumes a 5-paragraph structure that doesn't apply.

## Goals (rough)

- Each AssignmentType points to a specific rubric variant.
- At minimum 3 starter rubrics: thesis-driven essay, 5-paragraph essay, daily pages / free-write.
- Teachers can preview / override the rubric per assignment.

## Non-goals

- Custom rubric authoring from scratch (separate question — see [features/rubric-builder-chatbot.md](rubric-builder-chatbot.md) for an idea on that).

## Open questions

- [ ] What's the right design philosophy for daily-pages feedback? Pros and cons of same-rubric-as-essay vs distinct. Kevin flagged this as needing assessment philosophy alignment.
- [ ] Are thesis-driven and 5-paragraph really different rubrics, or is it one rubric with conditional sections?
- [ ] How do teachers signal what kind of essay an AssignmentType is — explicit dropdown, inferred from prompt?

## Engineering handoff

Not ready. Idea-stage. Needs pedagogical alignment before engineering scoping.