clipwright-wrap
MCP tool to format subtitle file text (SRT/VTT) at phrase boundaries using BudouX with line wrapping.
Overview
clipwright-wrap takes SRT/VTT subtitle files as input, splits each cue text into phrase units by BudouX, inserts line breaks to fit within specified character count and line count, and outputs the subtitle file in the same format. A pure text formatting tool with no FFmpeg / Whisper dependencies.
Input/Output
- Input: SRT file (
.srt) or VTT file (.vtt) - Output: Subtitle file in same format as input (with phrase boundary line breaks inserted)
- Timecodes: Unchanged (no retiming)
MCP Tool
clipwright_wrap_captions
Parameters
| Name | Type | Default | Description |
|---|---|---|---|
input |
string |
required | Input subtitle file path (.srt / .vtt) |
output |
string |
required | Output subtitle file path (same extension as input) |
language |
string |
"ja" |
Phrase splitting language (ja / zh-hans / zh-hant / th) |
max_chars |
int |
16 |
Max characters per line (full-width and half-width both count as 1 character). Positive integer. |
max_lines |
int |
2 |
Max lines per cue. Over-limit cues recorded in warnings (not truncated). Positive integer. |
Character Count Specification
max_chars is counted uniformly as 1 character each (both full-width and half-width as one len() character). Full-width normalization is a future extension (requirement §8).
Phrase Wrapping Mechanism
- Each cue text (if multiple lines, remove line breaks and concatenate) is split into phrases by BudouX
- Phrase token sequence is greedily packed into one line within
max_chars - Formatted text (multiple lines separated by
\n) is written back to cue
If a single phrase exceeds max_chars alone, place that phrase on one line (no splitting mid-phrase).
Supported Languages
Supports the following languages for which BudouX provides phrase splitting:
language Value |
Language |
|---|---|
ja |
Japanese |
zh-hans |
Chinese (Simplified) |
zh-hant |
Chinese (Traditional) |
th |
Thai |
Dependencies
| Package | Purpose |
|---|---|
budoux |
Phrase boundary splitting (standard dependency, lightweight model bundled) |
clipwright |
Shared types, envelope, errors |
mcp[cli] |
MCP server |
pydantic |
Parameter validation |
No FFmpeg / Whisper dependencies (pure text formatting). budoux is a standard dependency bundled with the package, so e2e tests can run continuously without environment variable gating.
Installation and Startup
uv add clipwright-wrap
clipwright-wrap
Or within a uv workspace:
uv run --package clipwright-wrap clipwright-wrap
Prerequisites
- Python 3.11 or later
- FFmpeg not required (text formatting only)
1 maintainer
Metadata
1 maintainer
Release files for clipwright-wrap 0.3.2
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | Provenance | Actions |
|---|---|---|---|---|
| clipwright_wrap-0.3.2.tar.gz | 14.9 kB | With provenance | Details for clipwright_wrap-0.3.2.tar.gz |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Actions Reset |
|---|---|---|---|---|
| clipwright_wrap-0.3.2-py3-none-any.whl | Python 3 | none | any | Details for clipwright_wrap-0.3.2-py3-none-any.whl |
Total release size: 33.4 kB
Release files / clipwright_wrap-0.3.2.tar.gz
| Download URL | clipwright_wrap-0.3.2.tar.gz |
|---|---|
| Size | 14.9 kB |
| Tags | Source |
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SHA-256 checksum How to use checksums |
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| Download URL | clipwright_wrap-0.3.2-py3-none-any.whl |
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| Size | 18.5 kB |
| Tags | Python 3 |
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SHA-256 checksum How to use checksums |
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Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/6.1.0 CPython/3.13.12
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Provenance
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Signed by GitHub Actions, verified by PyPI on Jul 8, 2026.
Transparency logSecurity for clipwright-wrap 0.3.2
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Attestation for clipwright_wrap-0.3.2.tar.gz
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Signed by GitHub Actions, verified by PyPI on Jul 8, 2026.
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