meltify
Melt files of any format into prompt-ready text where every line cites its source
Agents misread blurry digits, miss text a PDF hides, can't watch video, and paraphrase the one condition that mattered. meltify turns documents, spreadsheets, slides, mail, chat exports, archives, web pages, images, video and audio into markdown an agent can quote, puts a citation on every block, and checks answers before they go out.
Quickstart
Claude Code:
/plugin marketplace add jeon-jihyeon/meltify
/plugin install meltify@meltify
Codex, Gemini CLI, Cursor and other agents that read Agent Skills:
npx skills add jeon-jihyeon/meltify
Command line only:
uvx meltify read ./inputs
The skills call the meltify command. If it isn't installed, the plugin launcher runs it through uvx, so uv is the only thing you need.
What it does
| Command | Input | Output |
|---|---|---|
read |
files, folders and URLs of mixed formats | one cited markdown file per item, with images, scans and recordings read by local engines, plus a list of what still needs work |
ocr |
images and scanned PDF pages | each engine's lines with positions, and the values the engines disagree on |
hidden |
PDFs | text a reader doesn't see and why, with page and position |
media |
video, audio or a video URL | timestamped full-resolution frames and a timestamped transcript |
submit |
candidate files and a scoring endpoint | rate-limited submissions that skip duplicates and keep the best score |
check |
an answer file or a string | violations of a schema, counts, unique keys and text rules |
brief |
a problem statement | every condition line quoted with its line number, plus a board for juggling several problems |
doctor |
nothing | which engines, binaries and keys are available, and how to add the rest |
Each command has a skill of the same name, such as meltify-ocr, that tells the agent when to run it and what to do with the result.
What read handles
| Group | Formats | Needs |
|---|---|---|
| Documents | PDF, Word .docx and .doc, HWP and HWPX, RTF, ODT, Pages, EPUB, HTML, Markdown and plain text |
office for .docx, .doc, EPUB and HTML files |
| Spreadsheets | Excel .xlsx and .xls, ODS, Numbers, CSV and TSV |
office for .xls, iwork for Numbers |
| Slides | PowerPoint .pptx and .ppt, ODP, Keynote |
office for .pptx, LibreOffice for .ppt |
| Mail and chat | .eml, .msg, mbox, KakaoTalk exports, Slack export zips |
office for .msg |
| Archives | zip, tar, tgz, tbz2, txz, 7z, rar | archive for 7z and rar |
| Images | PNG, JPEG, WebP, GIF, BMP, TIFF, HEIC, AVIF, SVG | |
| Audio and video | mp3, wav, m4a, flac, ogg, mp4, mov, mkv, webm, subtitles | ffmpeg |
| Web pages | any http(s) URL, video URLs included | render for JavaScript-heavy pages, media for video sites |
| Data | JSON, JSONL, XML, YAML, SQLite, Jupyter notebooks, vCard, iCalendar |
Attachments, archive members and downloaded files are melted again as items of their own, up to three levels deep.
Pictures get read in the same pass. Images, scanned pages, pictures inside PDF, Word, PowerPoint, Excel and mail, and the speech and scene frames of recordings all go through local OCR and speech engines, and the text lands right where the picture was:
- Each unique picture or recording is read once, and every engine result is cached by content hash under
${XDG_CACHE_HOME:-~/.cache}/meltify, so a rerun only pays for what changed --budget SECcaps the time spent on uncached work (600 seconds by default). Whatever's left shows up asocr (budget)inneeds, and the next run picks up where this one stopped--shallowskips OCR and speech recognition and just lists what needs them. Everything else melts as usual- When two OCR engines disagree on a number, the block ends with a
> disputedline. With only one engine, it ends with> unchecked: one engine
URLs work like files. read saves a web page's main text with its heading anchors (--whole keeps the full page, --render runs it in a headless browser first), downloads documents and melts them by type, and sends video links through the media pipeline. Downloads land under meltify-out/read/web/ and are revalidated with ETags on the next run. By default it refuses private addresses, follows robots.txt and stops at 20 MB or 30 seconds. See SECURITY.md for the details.
Citations
Every result carries src and a one-line cite:
| Input | Cite |
|---|---|
| PDF text | report.pdf#p3@pt(72,95,140,103) |
| Image region | menu.png@px(120,40,380,72) |
| Spreadsheet cell | calendar.xlsx#Calendar!B7 |
| Mail attachment | handover.eml#att=cal.xlsx#Calendar |
| Archive member | bundle.zip#att=docs/b.pdf#p3 |
| Picture in a document | memo.docx#para3#img1 |
| HWP section line | notice.hwp#s1:12 |
| Web page line | https://example.com/guide#install:28 |
| Text line | notes.txt:42 |
| Media span | call.m4a@00:01:23.4-00:01:27.0 |
| JSON value | answers.json#$[3].reason |
Every command prints a table by default, and the full result with --json. Exit codes:
0: success1: violations, failed checks or other errors2: usage error or bad input3: a needed engine, key, binary or base module is missing
Engines
| Task | Local | Paid API |
|---|---|---|
| OCR | Apple Vision on macOS, PaddleOCR | Gemini, Claude, any OpenAI-compatible endpoint |
| Speech | MLX Whisper on Apple Silicon, whisper.cpp | any OpenAI-compatible transcription endpoint |
auto uses local engines only. Paid engines run only when you name them in meltify.toml or on the command line. An agent can also feed in what it reads in an image with meltify ocr --reading agent=FILE, so its own reading gets cross-checked against the local engines without any API key.
Optional parts install on request with meltify doctor --install NAME:
| Extra | Unlocks |
|---|---|
office |
Word, PowerPoint, Outlook .msg, EPUB and HTML files, plus legacy .doc and .xls |
archive |
7z and rar, through the system libarchive |
iwork |
Numbers tables |
render |
read --render for JavaScript-heavy pages, using your Chrome or a downloaded Chromium |
media |
video URLs through yt-dlp |
asr-mlx |
local speech recognition on Apple Silicon |
ocr-paddle |
PaddleOCR, the second local OCR engine |
Recordings need ffmpeg, YouTube downloads need deno, and .ppt needs LibreOffice.
Configuration
Settings are layered, lowest precedence first:
- The packaged defaults
$XDG_CONFIG_HOME/meltify/config.toml(usually~/.config/meltify/config.toml)- The nearest
meltify.toml, searched from the working directory up to the git root, or the file you pass with--config. Outside a git repository, only the working directory is searched MELTIFY_<KEY>andMELTIFY_<SECTION>_<KEY>environment variables- Command-line flags
See examples/meltify.toml for a sample.
Limits
- Text drawn inside an image is just pixels, so
hiddenfinds it only through--contrastrendering and OCR - OCR agreement means the engines read the same value, not that the value is right. A value read only by LLM engines is never marked agreed
- Speech recognition and OCR quality depend on the engine and the input
- Linux has no Apple Vision, so with PaddleOCR alone every reading is marked
unchecked .pptslides need LibreOffice. Without it, the row says so inneeds- 7z and rar need the system libarchive, a separate package on Linux
- Pages and Keynote files are read only through the preview image they embed, and encrypted HWP and Numbers files aren't read at all
- The plugin launcher is a POSIX shell script, so Windows isn't supported
License
MIT. meltify depends on PyMuPDF, which is AGPL-3.0, so distributing a product that bundles it comes with AGPL obligations. The pi-heif wheels bundle libheif and libde265 (LGPL-3.0), and the iwork extra pulls in enum-tools (LGPL-3.0) through numbers-parser.
Metadata
Release files for meltify 0.2.0
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| meltify-0.2.0.tar.gz | 87.9 kB | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| meltify-0.2.0-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 201.0 kB
Release files / meltify-0.2.0.tar.gz
| Download URL | meltify-0.2.0.tar.gz |
|---|---|
| Size | 87.9 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
14599ad423db76fe3c4cda804862156d278619268471fd7d1c465b4d43ddcae8
|
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bbeb2b58d220630c1b4790d131dceede4fb02ca4eb2faad259100e49345836e3
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Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.14
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Signed by GitHub Actions, verified by PyPI on Oct 5, 2026.
Transparency logRelease files / meltify-0.2.0-py3-none-any.whl
| Download URL | meltify-0.2.0-py3-none-any.whl |
|---|---|
| Size | 113.2 kB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
2b090352c5e9cf50fbc5f96f121cbc13fd29d9c6084451d5c5e4d77ebd977eef
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BLAKE2b-256 checksum How to use checksums |
d35371b2f75528e61f32357b1736f1d4ce1206aee179188ad2e7ad2da6f18d9b
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| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.14
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Oct 5, 2026.
Transparency log