metadata-hygienelisted

Audits and cleans metadata embedded in files before sharing — EXIF in images, author/revision history in documents, GPS in videos/audio, git config real names, archive internal paths, and binary file headers. Use when user says "strip metadata", "clean this file before sharing", "remove EXIF", "scrub this doc", "anonymize this file", "what metadata does this have", "git history cleanup", "remove my name from this", or when preparing any file for external distribution. Operationally distinct from redact (text content) and opsec-review (inference audit) — this skill handles embedded binary and structured metadata in files, not document text.
fevra-dev/Subrosa · ★ 0 · Data & Documents · score 72

Install: claude install-skill fevra-dev/Subrosa

# Metadata Hygiene Audit and cleaning guidance for embedded metadata in files before external sharing. Covers binary file headers, document properties, version history, geolocation data, device identifiers, and version control artifacts. **Composable with:** - `opsec-review` — identifies metadata as a finding; this skill executes the cleaning - `redact` — handles text content PII; this skill handles embedded file metadata --- ## File Type Coverage | File type | Primary metadata risks | Reference section | |---|---|---| | Images (JPEG, PNG, TIFF, HEIC, WebP) | GPS coordinates, device model, timestamp, author | `references/image-metadata.md` | | PDF | Author, company, software, creation date, revision history, comments, embedded fonts with license info | `references/document-metadata.md` | | DOCX / XLSX / PPTX (Office) | Author, last modified by, company, revision history, tracked changes, comments, template path | `references/document-metadata.md` | | Audio (MP3, FLAC, M4A, WAV) | GPS (phone recordings), device ID, recording software, embedded artwork with its own EXIF | `references/av-metadata.md` | | Video (MP4, MOV, MKV) | GPS coordinates, device model, recording software, creation timestamp, chapter markers | `references/av-metadata.md` | | Archives (ZIP, TAR, 7z) | Internal file paths revealing directory structure, creation timestamps, OS identifiers | `references/archive-metadata.md` | | Git repositories | Real name in commit history, email in commits, internal bran