(registered 2026-04-09, last updated 2026-04-09) Media type name: application Media subtype name: vnd.gp3 Required parameters: N/A Optional parameters: version Encoding considerations: 8bit GP3 files are UTF-8 encoded text containing a mix of Mandarin Unicode characters, ASCII symbolic operators, and English technical identifiers. Standard UTF-8 handling applies. Security considerations: GP3 files contain LLM behavioral specifications in encoded form. They carry no executable code and present no direct security risk. Files should be validated for UTF-8 encoding before processing. Interoperability considerations: GP3 files require a GP3-aware runtime for interpretation. Files are not intended for processing by generic text handlers. Published specification: https://gp3.app/spec Applications which use this media: GP3.APP operational intelligence platform and compatible LLM agent runtimes. Fragment identifier considerations: N/A Restrictions on usage: N/A Provisional registration? (standards tree only): No Additional information: 1. Deprecated alias names for this type: N/A 2. Magic number(s): # GP3 v 3. File extension(s): gp3 4. Macintosh file type code: N/A 5. Object Identifiers: N/A General Comments: Person to contact for further information: 1. Name: Robert Clausing 2. Email: robert&gp3.app Intended usage: LIMITED USE Author/Change controller: Robert Clausing, n0v8v LLC