POSTFACT — Resolve Ambiguous Side Effects Before Retry for Grok
io.github.gsterlingpress/postfact
Resolve whether an uncertain side-effecting action completed before software retries it.
client:Grok
transport:streamable-http
tools:1
Install POSTFACT — Resolve Ambiguous Side Effects Before Retry in Grok
.mcp.json (in your project root)
{
"mcpServers": {
"postfact": {
"type": "http",
"url": "https://postfact-api-production.up.railway.app/mcp"
}
}
}Grok Build reads Claude Code's .mcp.json and Claude Desktop's config unchanged, so a server you have already set up there needs nothing new. The Grok web app and X integration do not take custom servers. Grok docs