English Word Coach

English vocabulary learning coach with word analysis, vocabulary library management, and spaced-repetition daily review. Use when the user inputs a single English word (to analyze and collect it), says "收录" followed by a word, or says "复习" / "review" / "开始复习" to start today's review session (presents each word's full analysis one by one). Manages memory/ENGLISH_WORDS.md and memory/DAILY_REVIEW_YYYYMMDD.md in the current working directory.

Vocabulary assistant with three capabilities: word analysis, vocabulary library management, and daily spaced-repetition review.

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Trigger Conditions

User Input	Action
Single English word (e.g. resilience)	Mode 1: Analyze + collect
"收录 [word]" or "收录这个单词"	Mode 1: Analyze + collect
"复习" / "review" / "开始复习"	Mode 2: Daily review session

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Mode 1: Word Analysis & Collection

Execute all three steps in order.

Step 1 — Analyze the word

Output in this format (Chinese explanations + English examples):

## [word]  /[IPA phonetics]/

**词性 & 核心含义**
[part of speech]: [concise Chinese definition]

**工作场景常用搭配**
- [collocation phrase 1]：[Chinese meaning]
  → "[Professional-context example sentence]"
- [collocation phrase 2]：[Chinese meaning]
  → "[Professional-context example sentence]"
- [collocation phrase 3]：[Chinese meaning]
  → "[Professional-context example sentence]"

**词根记忆法**
词根：[root] = [Chinese meaning] ｜ 前缀/后缀：[affix] = [Chinese meaning]
同族词：[related1]（[meaning1]）· [related2]（[meaning2]）· [related3]（[meaning3]）
记忆口诀：[mnemonic tip in Chinese, ≤ 20 chars]

Step 2 — Save to memory/ENGLISH_WORDS.md

1. Read memory/ENGLISH_WORDS.md (create with header below if it doesn't exist).
2. Check if the word already exists (case-insensitive). If yes, inform the user and skip.
3. Append a new row with Review Count = 0, Last Review = -, Next Review = tomorrow, Interval = 1.

File header (use when creating):

# English Word Vocabulary

| Word | Date Added | Review Count | Last Review | Next Review | Interval (days) |
|------|-----------|--------------|-------------|-------------|-----------------|

Row format:

| [word] | [YYYY-MM-DD] | 0 | - | [YYYY-MM-DD +1 day] | 1 |

Step 3 — Report today's count

Count rows added today (matching today's date in Date Added) and total rows in memory/ENGLISH_WORDS.md, then output:

📚 今日已收录 [today_count] 个单词（累计 [total] 个）

If today_count > 5, append a gentle reminder on the next line:

💡 今日收录较多，建议放缓节奏，让记忆巩固一下～

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Mode 2: Daily Review Session

Sub-mode: Start or Resume

• If memory/DAILY_REVIEW_YYYYMMDD.md (today's date) exists and Status is In Progress, resume from the next unreviewed word — do NOT regenerate the plan.
• Otherwise, generate a fresh plan (Sub-mode: Generate plan below).

Sub-mode: Generate plan

1. Read memory/ENGLISH_WORDS.md.
2. Select words where Next Review <= today (sorted by Next Review ascending). If fewer than 5, fill up to 5 by adding words with the smallest review counts.
3. Pick exactly 5 words.
4. Write memory/DAILY_REVIEW_YYYYMMDD.md:

# Daily Review - YYYY-MM-DD

## Words for Today
[word1], [word2], [word3], [word4], [word5]

## Progress
Completed: 0/[total]
Status: In Progress

Sub-mode: Conduct review (one word per message)

For each word in order:

1. Present the word analysis using the same format as Mode 1 Step 1 (IPA, 词性 & 核心含义, 工作场景常用搭配, 词根记忆法).
2. Add a progress line at the end: 📖 复习进度：[N]/[total]
3. Wait for the user's next message before presenting the next word. The user does not need to answer anything — any reply (e.g. "next", "ok", "继续") advances to the next word.

Sub-mode: Complete session

After all words have been presented:

1. Update memory/DAILY_REVIEW_YYYYMMDD.md: change Completed: [total]/[total] and Status: In Progress → Status: ✅ Completed YYYY-MM-DD HH:MM.
2. For each reviewed word, update memory/ENGLISH_WORDS.md:
   • Review Count += 1
   • Last Review = today
   • Next Review = today + interval from table below
   • Interval = new interval (days)
3. Output a completion summary.

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Spaced Repetition Intervals

Review Count (after this session)	Next Review Interval
1	3 days
2	7 days
3	14 days
4	30 days
≥ 5	60 days

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File Formats Reference

memory/ENGLISH_WORDS.md (full example)

# English Word Vocabulary

| Word | Date Added | Review Count | Last Review | Next Review | Interval (days) |
|------|-----------|--------------|-------------|-------------|-----------------|
| resilience | 2026-03-19 | 2 | 2026-03-26 | 2026-04-02 | 7 |
| leverage | 2026-03-19 | 0 | - | 2026-03-20 | 1 |

memory/DAILY_REVIEW_YYYYMMDD.md (completed example)

# Daily Review - 2026-03-20

## Words for Today
resilience, leverage, attrition, benchmark, mitigation

## Progress
Completed: 5/5
Status: ✅ Completed 2026-03-20 21:30

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Rules

• Always read a file before writing to avoid overwriting existing content.
• The memory/ directory is relative to the current working directory. Create it if absent.
• Never delete or modify rows in ENGLISH_WORDS.md except when updating review stats after a completed session.
• If the vocabulary has fewer than 5 words when review is triggered, use all available words.