Python → LM Studio plugin porting map

Reference tree: reference/exif-sniffer/ (copy of exif-sniffer, without .git / .venv / caches). Do not place a .gitignore under reference/—lms push forbids nested ignore files; when re-syncing, use e.g. rsync ... --exclude='.gitignore'.

Tool parity

Python MCP tool (server.py)	TS plugin (src/toolsProvider.ts)	Notes
list_files	list_files	Base = plugin folderName (replaces LOCAL_MEDIA_BASE).
read_file	read_file	Same relative path rules (^[\w./-]+$, no ..).
write_file	write_file	UTF-8 text.
create_directory	create_directory	mkdir -p under base.
extract_metadata	extract_metadata	Image: exifr + image-size + PNG chunk parser; video: no ffprobe — returns ffprobe.unsupported stub (see below).
write_metadata	write_metadata	JPEG/WebP via piexifjs (behavior should track Python/piexif; tag typing may differ slightly).
fetch_remote_media	fetch_remote_media	Destination root = ctl.getWorkingDirectory() (replaces DATA_DIR). SSRF policy from plugin settings.
extract_metadata_to_json	extract_metadata_to_json	Source/output under working directory.
validate_local_media_root	validate_local_media_root	Absolute path validation unchanged.
list_local_media_images	list_local_media_images	Same suffix set and caps.
extract_local_media_metadata_to_json	extract_local_media_metadata_to_json	Output JSON under working directory.
update_local_media_exif	update_local_media_exif	In-place EXIF merge/remove.

Intentional gaps (v1 TypeScript)

npm constraints (LM Studio Hub)

Per LM Studio dependencies: no postinstall scripts. Dependencies used here (exifr, image-size, piexifjs, zod, @lmstudio/sdk) are plain JS or ship prebuilt assets without install hooks—re-verify after upgrades.

Publishing

Edit manifest.json: set owner to your Hub username/org and bump revision when publishing. Plugin name must stay kebab-case (lmexif-sniffer).