bilibili-chapter-generator

Original：🇨🇳 Chinese

Translated

Generate chapter lists for Bilibili videos. Trigger scenarios: (1) Need to create Bilibili video chapters (2) User says "convert to Bilibili format", "generate chapters", "generate Bilibili chapters" (3) Need to generate video segments from subtitles (4) Process video progress bar segment markers

2installs

Sourcenanmicoder/claude-code-skills

Added on2026-02-15

NPX Install

npx skill4agent add nanmicoder/claude-code-skills bilibili-chapter-generator

SKILL.md Content (Chinese)

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Bilibili Video Chapter Generator

Generate chapter lists for Bilibili videos based on subtitle content, which users can directly copy to the Bilibili video editing page.

Bilibili Chapter Format Specifications

00:00 Introduction
01:23 Part 1 Title
05:30 Part 2 Title

Format Requirements (Bilibili Mandatory Restrictions):

The first chapter must start at
00:00
(This is a mandatory requirement)
Number of chapters: 3-10 (Must be > 2 and ≤ 10)
Chapter titles cannot contain special characters (Prohibited characters include
```
：
```
```
:
```
```
、
```
```
，
```
```
。
```
```
！
```
```
？
```
```
【】
```
```
()
```
etc.)
Time format:
```
MM:SS
```
(minutes:seconds) or
```
HH:MM:SS
```
(hours:minutes:seconds)
One chapter per line:
```
Timestamp Chapter Title
```
Interval between chapters must be ≥ 5 seconds

Workflow

Step 1: Obtain SRT File

Ask the user for the SRT subtitle file path, or retrieve it from the context.

Step 2: Parse Subtitle Content

Call the

srt-to-structured-data

skill to parse subtitles:

bash

python3 ~/.claude/skills/srt-to-structured-data/scripts/parse_srt.py "<srt_file_path>" --stats

This will output:

JSON structure of subtitles (including timestamps and text)
Statistical information (total duration, number of subtitles, etc.)

Step 3: Analyze Subtitle Content

Read the subtitle content to understand the video's:

Theme and structure
Content turning points
Key topic changes

Step 4: Generate Chapter List

Generate the chapter list based on the user's described intent (if any) or automatic analysis:

Identify content turning points: Locate positions where topics change or new paragraphs begin
Determine chapter titles: Briefly describe the content of the segment (2-8 characters recommended)
Verify time intervals: Ensure the interval between adjacent chapters is ≥ 5 seconds
Format output: Use the
```
MM:SS Title
```
format

Step 5: Output Results

Output the chapter list in plain text format, which users can directly copy:

00:00 Opening Introduction
02:15 Core Concept Explanation
08:30 Practical Demonstration
15:00 Summary and Review

Usage Examples

User Input:

Help me convert ./video-subtitles.srt to Bilibili chapters

Or more detailed requirements:

Help me generate Bilibili chapters with the following requirements:
- Subtitle file: ./demo.srt
- Approximately 5-6 chapters
- Highlight the practical section

Chapter Division Recommendations

Bilibili Restriction: 3-10 chapters (Must be > 2 and ≤ 10)

Short videos (< 5 minutes): 3-4 chapters
Medium-length videos (5-15 minutes): 4-7 chapters
Long videos (> 15 minutes): 7-10 chapters

Notes

The first chapter must start at
00:00
, named "Opening", "Introduction" or directly state the topic
Chapter titles are prohibited from containing special characters: Colons, commas, brackets, etc. are not allowed; only use Chinese/English/numbers
Chapter titles should be concise and powerful, allowing viewers to quickly locate content (2-8 characters recommended, plain text only)
The last chapter can be "Summary", "Conclusion" or "Easter Egg"
Avoid overly dense chapters (too short intervals will look cluttered)
Timestamps should take the start time of subtitle paragraphs, rounded down to the nearest second
The total number of chapters must be > 2 and ≤ 10, otherwise Bilibili will reject it

Chapter Title Examples

Correct Examples:

```
00:00 Opening Introduction
```
```
03:35 Agent Demo: Skill Loading Process
```
```
05:39 Environment Configuration
```
```
08:38 Source Code Analysis
```

Incorrect Examples (Contain Special Characters):

~~03:35 Agent Demo: Loading Skill Process~~
(Contains colon)

~~05:39 Environment Preparation, Install Dependencies~~
(Contains comma)

~~08:38 Code Analysis (Core Logic)~~
(Contains brackets)