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Phase 3: Check my work, follow-ups and turn-into-deck

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Check my work (third homework mode)
- One model call with its own system prompt marks the student's own
  attempt: verdict, what's right, each issue with why + fix, and the
  corrected version that keeps everything the student got right.
  Unasked-for extras are never errors. The attempt is typed/pasted
  (photos of handwriting are documented as unsupported) and stored in
  the record so Redo re-checks the same work.
- Server: mode "check" + solution on POST /api/homework (zod, 400
  server.needSolution without one) and the same NDJSON stream; new
  checkHomework() pipeline with repair-once validation.

Follow-ups
- New POST /api/homework/refine (plain JSON, RATE_LIMIT_REFINE, zod,
  auth before body): shorter / more detail / explain, plain text back,
  language preserved.
- Shorter + More detail + Original rewrite the finished answer and the
  corrected version in place (FollowUpBar); every guide step has
  Explain step N differently; failed calls say so without losing text.

Turn into a study deck
- Any result hands its content (answer, corrected version or assembled
  guide) to New deck through a one-shot sessionStorage seed with the
  options step pre-filled.

UI
- Phone step 2 gains the third card: tapping it reveals the solution
  field + submit; desktop has three cards and the solution field shows
  with the mode. Homework history labels and share/card previews cover
  the new mode.

Verified: new phase-3 suite 20/20 against a stub Ollama (check payload,
missing-solution 400, refine validation, phone + desktop check flows,
shorter follow-up with restore, guide explain, deck hand-off) plus
regression 74/74, mobile 52/52, declutter 116/116, wizard 80/80,
animation 8/8, native 35/35, phase1 38/38, phase2 43/43, i18n 25/25.
Key parity 734/734. Lint + build clean. SW freezmo-v27.
This commit is contained in:
Martin Dvořák 2026-10-10 14:36:04 +00:00
commit 4513364019
22 changed files with 947 additions and 56 deletions
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28
lib/homework.ts
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@ -117,7 +117,18 @@ export function getHomework(id: string): HomeworkRecord | undefined {
/** Everything needed to store a result (the route's payload plus the source). */
export type NewHomeworkResult =
| { mode: "make"; title: string; language?: string; sourceText: string; answer: string }
| { mode: "guide"; title: string; language?: string; sourceText: string; steps: HomeworkStep[] };
| { mode: "guide"; title: string; language?: string; sourceText: string; steps: HomeworkStep[] }
| {
mode: "check";
title: string;
language?: string;
sourceText: string;
verdict: string;
correct: string[];
wrong: Array<{ issue: string; why: string; fix: string }>;
corrected: string;
attempt?: string;
};
function buildRecord(
base: { id: string; createdAt: number; updatedAt: number },
@ -130,6 +141,17 @@ function buildRecord(
sourceText: input.sourceText.slice(0, MAX_STORED_SOURCE),
};
if (input.mode === "make") return { ...shared, mode: "make", answer: input.answer };
if (input.mode === "check") {
return {
...shared,
mode: "check",
verdict: input.verdict,
correct: input.correct,
wrong: input.wrong,
corrected: input.corrected,
attempt: input.attempt?.slice(0, 20_000),
};
}
return { ...shared, mode: "guide", steps: input.steps };
}
@ -167,7 +189,9 @@ export function assembleSolution(record: HomeworkGuideRecord): string {
/** Label for a row in the history list. */
export function homeworkModeLabelKey(mode: HomeworkMode): string {
return mode === "make" ? "homework.history.made" : "homework.history.guide";
if (mode === "make") return "homework.history.made";
if (mode === "check") return "homework.history.checked";
return "homework.history.guide";
}
export type { HomeworkGuideRecord };