Add active-recall and mastery-gate mechanisms to learning-coach overlay

Bounded, overlay-only repair: the learning-coach prompt had concepts,
practice, feedback, assessment, spaced repetition, and failure signals,
but lacked the load-bearing learning-science mechanisms it implicitly
needs. Add four, inside 05-domain only (no new skill, no copied prompt,
not in the default engineering flow — see METHODOLOGY_MAP boundary):

- Active Recall: restate concepts from memory before checking sources
- Retrieval Practice: mixed open + multiple-choice to avoid familiarity
  illusion
- Mastery Gate: progress by demonstrated mastery, not elapsed days
- Misconception Remediation: diagnose the specific error from wrong
  answers / failure signals and reteach that, not the whole stage

Rules updated accordingly; 7/30-day plans now mark milestones by mastery
gate. Regenerated index.json. Verified: links, lint, governance,
project-knowledge, and 52 tests all pass.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: johnteee

reflective-prompt-library/05-domain/learning-coach.md

@@ -16,16 +16,22 @@ Use this for learning languages, engineering, philosophy, science, or any skill
 4. Misconceptions：常見誤解
 5. Skill Decomposition：拆成子技能
 6. Practice Tasks：練習任務
-7. Feedback Loop：如何取得回饋
-8. Assessment：如何驗收
-9. Spaced Repetition Plan：複習節奏
-10. Failure Signals：學歪的徵兆
-11. 7-day Plan
-12. 30-day Plan
+7. Active Recall：每階段先不看材料，用自己的話重述核心概念，再對照來源修正
+8. Retrieval Practice：混合開放題與選擇題出題；勿只用選擇題，以免造成「看得懂≠記得住」的熟悉感錯覺
+9. Feedback Loop：如何取得回饋
+10. Mastery Gate：每階段定義通過標準，未達標不進入下一階段（以掌握度而非天數決定進度）
+11. Assessment：如何驗收
+12. Misconception Remediation：依答錯與 Failure Signals 診斷具體誤解，針對該誤解補教並重測，而非整段重來
+13. Spaced Repetition Plan：複習節奏
+14. Failure Signals：學歪的徵兆
+15. 7-day Plan（里程碑以 mastery gate 標示，不只排時間）
+16. 30-day Plan（里程碑以 mastery gate 標示，不只排時間）
 
 規則：
 - 優先訓練可輸出的能力，不只吸收知識。
 - 每個練習都要有驗收標準。
+- 進度以掌握度為準：mastery gate 未通過不前進。
+- 每階段以 active recall 開場，再用間隔複習鞏固。
 - 避免空泛建議。
 ```
 

reflective-prompt-library/index.json

@@ -1,6 +1,6 @@
 {
   "version": "1.0",
-  "generated_at": "2026-06-20T02:33:36.899079",
+  "generated_at": "2026-06-20T16:43:00.922515",
   "repo_root": ".",
   "categories": {
     "prompt-library": {
@@ -3114,8 +3114,8 @@
           "text": "學習目標"
         }
       ],
-      "line_count": 31,
-      "char_count": 566
+      "line_count": 37,
+      "char_count": 925
     },
     {
       "path": "reflective-prompt-library/05-domain/deep-analysis.md",