From Test-Scratch-Wiki
A Project Summary is a text file generated for a project by Scratch which contains a lot of information about a project, such as sprites, and even scripts in text form. They are useful for compiling code for the Block Plugin.
Formation
Below is a list of the parts of the project summary. Anything in brackets {} changes based on the project.
Introduction
This section of the project summary contains the basic info of the project.
Project: {name of project} Author: {name of author} Scratch: {version of Scratch} Notes: {project notes}
History
This section lists the entire history of a project, since the first version was uploaded. Each action is listed with the date in the y-m-d format, the action (save or share), the name of the project to date, and the author if it was uploaded.
Totals
Total counts of items (sprites, scripts, unique sounds, and unique costumes, specifically) are listed here.
Totals: Sprites: {number of sprites} Stacks: {number of scripts} Unique costumes: {number of distinct costumes} Unique sounds: {number of distinct sounds}
Sprites
This section is often the biggest section. It lists all the sprites and the Stage, and some data about them.
Sprite: {name of sprite} Costumes ({number of costumes}): {name} ({width}x{length}) --Each costume is listed like this. Sounds ({number of sounds}): {name} ({length in h:m:s format}) --Each sound is listed like this. Stacks ({number of scripts}): {each script is written out}
Generating Project Summaries
To create a project summary, shift-click the file menu and select "Write project summary". Select a directory, and click save. A .txt file will appear in the directory, containing the project summary.