The Common Lisp Metaspec is a translation of the TEX source files of the Common Lisp Standard rev 15.17R (X3J13/94-101R) into a s-expression document format (sdoc) structured around a (NODE-TYPE PROPERTY-PLIST NODE-CHILD*) form. Care has been taken to preserve the provenance of the original texts, and any deviations from the document have been mechanically applied and recorded as Errata (for spec corrections) and Addenda (for additional data supplied to use in the HTML render).
The Metaspec Render is an HTML rendering of the Metaspec. As well as rendering the Metaspec sdoc into HTML, it also handles reference linking, search, and presentation. A link to the original Metaspec sdoc is available on the bottom of every rendered page.
The MetaSpectre project is the code and archived inputs to create and render the Metaspec. It was started in 2015 by Daniel Lowe, abandoned for a long time, then completed in 2026.