POSTFACT — Resolve Ambiguous Side Effects Before Retry is an MCP server with 1 tool an agent can call, among them resolve_outcome. It answers at https://postfact-api-production.up.railway.app/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 11 September 2026; the last check, on 19 October 2026, succeeded.
Resolve whether an uncertain side-effecting action completed before software retries it.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
resolve_outcome | Call after a side-effecting API/tool action fails ambiguously and before retrying. POSTFACT returns DONE only with affirmative completion evidence, NOT_DONE only with affirmative non-execution evidence, otherwise UNKNOWN. UNKNOWN is the saf Inputs: method, status, failure, sideEffect, idempotencyKey, requestId |
Every block below points at https://postfact-api-production.up.railway.app/mcp. Pick your client and copy.
claude mcp add --transport http postfact-resolve-ambiguous-side https://postfact-api-production.up.railway.app/mcp
{
"mcpServers": {
"postfact-resolve-ambiguous-side": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://postfact-api-production.up.railway.app/mcp"]
}
}
}{
"mcpServers": {
"postfact-resolve-ambiguous-side": {
"url": "https://postfact-api-production.up.railway.app/mcp"
}
}
}{
"servers": {
"postfact-resolve-ambiguous-side": {
"type": "http",
"url": "https://postfact-api-production.up.railway.app/mcp"
}
}
}{
"context_servers": {
"postfact-resolve-ambiguous-side": {
"url": "https://postfact-api-production.up.railway.app/mcp"
}
}
}{
"mcpServers": {
"postfact-resolve-ambiguous-side": {
"serverUrl": "https://postfact-api-production.up.railway.app/mcp"
}
}
}{
"mcpServers": {
"postfact-resolve-ambiguous-side": {
"url": "https://postfact-api-production.up.railway.app/mcp"
}
}
}name: POSTFACT — Resolve Ambiguous Side Effects Before Retry
version: 0.0.1
schema: v1
mcpServers:
- name: POSTFACT — Resolve Ambiguous Side Effects Before Retry
type: streamable-http
url: https://postfact-api-production.up.railway.app/mcp{
"mcpServers": {
"postfact-resolve-ambiguous-side": {
"httpUrl": "https://postfact-api-production.up.railway.app/mcp"
}
}
}{
"mcpServers": {
"postfact-resolve-ambiguous-side": {
"type": "http",
"url": "https://postfact-api-production.up.railway.app/mcp"
}
}
}{
"mcpServers": {
"postfact-resolve-ambiguous-side": {
"url": "https://postfact-api-production.up.railway.app/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fpostfact-api-production.up.railway.app%2Fmcp&type=streamable_http&id=postfact-resolve-ambiguous-side&name=POSTFACT%20%E2%80%94%20Resolve%20Ambiguous%20Side%20Effects%20Before%20Retry
It answered our last check on 19 October 2026 in 285 ms. Over 6 checks since 11 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.
1, as returned by the server's own tools/list on 12 September 2026: resolve_outcome.
It answered our last check on 19 October 2026 in 285 ms. Over 6 checks since 11 September 2026 it answered 6.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://postfact-api-production.up.railway.app/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: io.github.gsterlingpress. Endpoint host: postfact-api-production.up.railway.app. ARD identifier: urn:air:io.github.gsterlingpress:mcp:postfact.
First indexed 10 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.