tiktok

name	tiktok
version	1.0.0
description	TikTok 国际版内容创作全套。包括英文短视频文案（Hook-first 策略）、 竖屏/横屏格式规范、hashtag 策略、For You Page 算法适配、 Community Guidelines 合规、完播率优化、封面设计策略。 建议配合 copywriting-base 使用以获取通用文案能力。 触发词：TikTok、海外短视频、TikTok运营、TikTok marketing。

TikTok Content Creation

Caption Style

Core Tone: Authentic, Hook-first, Trend-aware

• Authentic: Sound like a real person, not a brand. Casual, conversational
• Hook-first: First line must stop the scroll — 1-2 seconds to capture attention
• Trend-aware: Reference trending sounds, formats, and cultural moments
• Value-driven: Every video must deliver on its promise
• Inclusive: Write for global audiences — simple English, avoid regional slang overuse

Caption Templates

Hook + Value + CTA:
  "POV: you just discovered [hack/trick/fact]"
  "Stop scrolling if you [pain point]"
  "3 things I wish I knew about [topic] sooner"
  "This [method] changed everything for me"
  "Nobody talks about this but [insight]"

Story-driven:
  "I tried [X] for [time] — here's what happened"
  "Day [N] of [challenge/experiment]"
  "What I learned from [experience]"

Engagement bait (compliant):
  "Save this for later"
  "Share with someone who needs this"
  "Comment [emoji] if you agree"
  "Which one are you? 1, 2, or 3?"

Writing Rules

DO:
  - Start with a hook (question, bold claim, or relatable scenario)
  - Use line breaks for readability
  - Include 1 clear CTA (follow, save, share, comment)
  - Write in first person where possible
  - Use numbers for specificity ("5 tips" > "some tips")
  - Match caption energy to video energy

DON'T:
  - Start with "Hey guys" or "Welcome back" (wastes the hook)
  - Write walls of text (keep under 150 words in caption)
  - Use all caps excessively (looks spammy)
  - Promise what the video doesn't deliver (reduces retention)
  - Use banned/restricted words (see content-rules.md)
  - ⛔ Insert ANY external URLs in caption (GitHub, website, shop links, etc.)
  - ⛔ Put QR codes in video frames
  - External links ONLY allowed in Bio — use "Link in bio" to redirect

---

Format Specs

Video Specifications

Item	Spec
Aspect Ratio	9:16 vertical (primary), 16:9 horizontal, 1:1 square
Resolution	1080×1920 (vertical) / 1920×1080 (horizontal)
Format	MP4 / MOV / WebM
Size	≤10GB (web upload), ≤287MB (mobile)
Frame Rate	30fps (recommended) / 60fps
Codec	H.264 recommended
Duration	15s — 10min (up to 60min for some accounts)
Audio	AAC, 44100Hz

Duration Sweet Spots

Duration	Use Case	Difficulty
7-15s	Trending sounds, quick tips, memes	★
15-60s	Tutorials, storytelling, POV	★★
1-3min	In-depth how-to, reviews, vlogs	★★★
3-10min	Series content, full tutorials	★★★★

Cover Specifications

Vertical Cover: 1080×1920 (9:16)
  - Full-screen display on profile grid
  - Primary cover format for most content

Horizontal Cover: 1920×1080 (16:9)
  - Used for embed/share previews
  - Desktop browser display

Design Rules:
  - Bold text overlay (3-5 words max)
  - High contrast colors
  - Face visible = higher CTR (+25-35%)
  - Bright, eye-catching backgrounds
  - Text safe zone: center 80% of frame

Avoid:
  - Small/unreadable text
  - Cluttered designs
  - Logos without context
  - Black/dark backgrounds (blends with UI)

Subtitle/Text Overlay

Position: Center or lower third (avoid bottom 15% — UI overlay zone)
Font: Bold sans-serif, white with black outline/shadow
Size: ≥36pt (visible on mobile)
Timing: Sync with speech, 1-2 lines max
Style: Highlight keywords in accent color (yellow, red, green)

---

Caption Rules

TikTok 没有独立标题字段。 只有 Caption（描述文案），即发布时的文字输入区。Caption 兼具标题和正文功能，前 80 字符决定信息传达效率。不要在 Agent 调用中传递 title 参数。

Caption Writing

Rule	Detail
Max Length	4,000 characters (as of 2025)
Recommended	50-150 characters for best engagement
Visible	First ~80 characters before "more" truncation
Keywords	Place primary keyword in first 40 characters
Line Breaks	Use for readability — TikTok renders them

Caption Formula

[Hook line — grab attention]

[Value/Content summary — 1-2 sentences]

[CTA — follow, save, share, or comment prompt]

[Hashtags — 3-5 relevant tags]

Example Captions

Tutorial:
  "The Excel trick your boss doesn't know about 👀
   This saved me 3 hours every week.
   Save this & try it tomorrow.
   #ExcelTips #Productivity #WorkHack #LearnOnTikTok"

Storytelling:
  "I quit my 9-5 to build an app. Month 3 update.
   Revenue: $0 → $4,200. Here's exactly what I did.
   Follow for month 4 🔔
   #BuildInPublic #StartupLife #Entrepreneur"

Trend/Entertainment:
  "Tell me you're a developer without telling me 💀
   Comment yours ⬇️
   #DevLife #ProgrammerHumor #Tech #fyp"

---

Hashtag Strategy

Hashtag Best Practices

Count: 3-5 hashtags (sweet spot for reach)
Placement: End of caption (keeps caption clean)
Mix:
  1 broad/discovery tag:  #fyp #foryou #viral
  1-2 niche/topic tags:   #CodingTips #StartupLife #AITools
  1 trend/challenge tag:  Current trending hashtag
  0-1 branded tag:        Your own recurring tag

Max: TikTok allows up to 100 characters for all hashtags combined

High-Performance Tags

Discovery:
  #fyp #foryou #foryoupage #viral #trending

Engagement:
  #LearnOnTikTok #TikTokMadeMeBuyIt #tutorial

Niche (examples):
  Tech: #TechTok #CodingTips #AI #WebDev
  Business: #SmallBusiness #Entrepreneur #SideHustle
  Finance: #MoneyTok #Investing #CryptoTok
  Lifestyle: #LifeHack #Productivity #Motivation

Avoid:
  - Banned/restricted hashtags (check before using)
  - Irrelevant trending tags (algorithm penalizes mismatch)
  - Too many tags (>8 looks spammy, dilutes signal)

---

Posting Schedule

Best Times (UTC)

Time (UTC)	Audience	Traffic
13:00-15:00	US morning + EU afternoon	★★★★
17:00-19:00	US afternoon + EU evening	★★★★★
22:00-01:00	US evening prime time	★★★★★
06:00-08:00	EU morning + Asia evening	★★★

Posting Frequency

Recommended:
  - 1-3 videos per day (consistency > volume)
  - At least 4 per week minimum
  - Post at same times to train audience

Growth Phase:
  - 2-3 per day for first 30 days
  - Test different times, track analytics

Stable Phase:
  - 1 per day, high quality
  - Supplement with Stories/Photos

---

Content Compliance

See → references/content-rules.md

Community Guidelines Summary

Category	Risk	Action
Copyright music	High	Use TikTok Commercial Music Library or original
Health claims	High	No medical advice without "not professional advice"
Income claims	High	No "guaranteed income" / "make $X fast"
Political content	Medium	Labeled and may have limited distribution
Branded content	Medium	Must use Branded Content toggle
External links	Medium	Only in bio; no QR codes in videos
Minors	Critical	No content featuring/targeting minors inappropriately

Shadowban Indicators

Signs:
  - 0 views after 1 hour (normally 200-500 initial push)
  - Videos not showing in hashtag feeds
  - Sudden engagement drop (>80% decrease)

Common Causes:
  - Posting copyrighted content
  - Spam behavior (mass following/unfollowing)
  - Using banned hashtags
  - Repeated Community Guidelines violations
  - Bot-like activity patterns

Recovery:
  - Stop posting for 24-72 hours
  - Remove flagged content
  - Post original, high-quality content
  - Avoid external links for 1-2 weeks

---

Algorithm Optimization

See → references/algorithm-guide.md

For You Page (FYP) Ranking Signals

Weight (estimated):
  1. Watch Time / Completion Rate — #1 signal, videos watched to end get boosted
  2. Re-watches — Users watching again = strong positive signal
  3. Shares — Highest-weight engagement action
  4. Comments — High-weight, especially lengthy ones
  5. Saves/Favorites — "Bookmark" indicates high-value content
  6. Likes — Base engagement, lower weight than above
  7. Profile Visits — from video = interest signal
  8. Follow-from-video — Strong conversion signal

Content Lifecycle

Phase 1: Initial Push (0-1h)
  - Shown to 200-500 users (small test pool)
  - Algorithm measures: completion rate, engagement rate
  - Target: >50% completion, >5% engagement

Phase 2: Expansion (1-24h)
  - If Phase 1 metrics pass threshold → 5K-50K pool
  - New signals: share rate, comment quality
  - Target: maintain engagement ratios

Phase 3: Viral Potential (24h-7d)
  - Strong Phase 2 → 100K+ pool
  - Content enters broader FYP
  - Can continue growing for days/weeks

Phase 4: Evergreen (7d+)
  - High-performing content resurfaces periodically
  - Search-optimized content has longest shelf life

Completion Rate Tactics

Position	Strategy
0-1s	Pattern interrupt: unexpected visual/sound/text
1-3s	Hook: promise value ("Watch till the end for...")
3-10s	Deliver first value point quickly
Mid	Maintain tension: "But here's where it gets interesting"
Pre-end	Tease payoff: "The last one is the best"
End	Reward + CTA: deliver promise, ask for follow/save

---

Output Format

🎬 TikTok Post:
Caption:
[Hook line]
[Value summary]
[CTA]
[#tag1 #tag2 #tag3]

Estimated Duration: {X}s

🖼️ Cover Text: [3-5 word overlay text]
🎵 Sound Suggestion: [trending sound / original / music type]

⏰ Best Post Time: [time window in UTC]

⚠️ Compliance Check:
  - Banned words: ✅ None
  - Copyright risk: ✅ Clear
  - Branded content: ✅ Toggled if needed
  - External links: ✅ No URLs in caption or video (GitHub, website, etc.)
  - QR codes: ✅ None in video frames