About History Graph Protocol
History Graph Protocol is an MCP server published by wgsim in the AI category: an MCP server that gives AI agents a permanent, append-only causal history.
Six months or more without a commit doesn't mean the server is broken, but check the open issues before depending on it in production.
Install
git clone https://github.com/wgsim/history-graph-protocolThis server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.
Tools (6)
hgp_append_fileAppend content to a file and record as artifact
Parameters not published.
hgp_delete_fileDelete a file and record an invalidation operation
Parameters not published.
hgp_edit_fileReplace a unique string in a file and record as artifact
Parameters not published.
hgp_file_historyReturn all HGP operations recorded for a given file path
Parameters not published.
hgp_move_fileMove/rename a file; records invalidation of old path + new artifact
Parameters not published.
hgp_write_fileWrite (create or overwrite) a file and record it as an artifact
Parameters not published.
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