3. MCP Server Reference › 3.3 Engine › Versions › engine_history_list

Gives out all the saved versions of a file, the newer ones first.

The Right

“Direct access → Development → Read data” (AGENT_ENGINE_DEV_READ).

Parameters

Parameter	Type	What it is
`path`	string	the path of the file: `units/melbis_cataloge.php`. The path of a deleted file will do too

The Answer

{"path": "./../templates/default/statics/melbis/main.css",
 "versions": {"columns": ["id", "time", "user"],
              "rows": [[7, "2026-09-16 21:18:40", "Administrator"],
                       [6, "2026-09-16 21:18:40", "Administrator"]]}}

Field	What it is
`path`	the path of the file
`versions`	the table of the versions: `id` — the number for `engine_history_content`, `time` — when it was saved, `user` — who saved it; empty if there is no such user in the store any more

If there are no versions, rows is empty and the reason comes as a second block:

Reason	When
`Server journals keep no version history…`	the path leads to a journal of the server
`Files of the images tree keep no version history.`	the path leads to a file of the images
`The file exists but has no saved versions: … has it switched off.`	the keeping of versions is switched off in the program on this computer
`The file exists but has no saved versions yet…`	the file has not been saved yet

Refusals

Answer	When
`No such file in the project: … Check the path against engine_map_tree.`	the file is not in the store’s map and there are no versions at this path
`path is required`	`path` is not given

The common refusals — “Answers and Refusals”.