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server-types-runtime-only Cursor ruleA

server-types-runtime-only from truefoundry/trueforge is a Cursor rule: instructions the Cursor agent follows in that repo.

Install it, pinned

mdr add truefoundry/trueforge/.cursor/rules/server-types-runtime-only.mdc@git:20260922.a855122

Pins git:20260922.a855122 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 14 of 14 checks passed
Kind: Cursor rule
Repository: truefoundry/trueforge
Path: .cursor/rules/server-types-runtime-only.mdc
Versions recorded: 4
Latest version: git:20260922.a855122, committed Sep 22, 2026
First version recorded: Aug 10, 2026
Size: 1,700 bytes
Repository stars: 6,446
License: MIT

AgentUIServer / server-port types are defined only in assistant-ui-runtime; UI re-exports.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Server types — runtime is the sole owner

Canonical `AgentUIServer` / chat / builder / catalog port types live only in
[`packages/assistant-ui-runtime`](packages/assistant-ui-runtime)
(`src/server/types.ts` + `events.ts`).

## Rules

- [`packages/trueforge-ui/src/server/types.ts`](packages/trueforge-ui/src/server/types.ts)
  is the host-facing barrel: re-export only from `@truefoundry/trueforge-assistant-ui-runtime`
  (prefer `/server` when avoiding root name collisions). Do **not** put hand-written
  server port/DTO interfaces there or elsewhere in this monorepo.
- Hosts import types from `@truefoundry/trueforge-ui` only — they must not need the
  runtime package for types.
- Need a new field/method on the contract? Change runtime `server/types.ts` first,
  then re-export and changeset both affected packages — never fork the shape in the UI SDK.
- React wiring may stay here (`ServerContext`, `ShellModeContext`,
  `TrueForgeServerConfig`). Those modules **import** runtime types; they do not
  redefine ports.
- Host adapters (e.g. frontend `harnessServer`) widen via generics / intersections
  over runtime bases (`SkillMount` / `McpServerMount` stay opaque `object`).

## Examples
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add truefoundry/trueforge/.cursor/rules/server-types-runtime-only.mdc@sha256:ba7d0e3e3c66c1c8

The line at the top of this page pins the label git:20260922.a855122, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

[![mdr](https://markdownregistry.com/badge/art_2phu6ez25biabqp2.svg)](https://markdownregistry.com/a/art_2phu6ez25biabqp2)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 4 versions of this file, between Aug 10, 2026 and Sep 22, 2026, about one every 14 days.

version	committed	commit	size	audit
git:20260922.a855122 latest	2026-09-22	a855122	1,700 B	A	view · diff
git:20260816.cdb60d7	2026-08-16	cdb60d7	1,638 B	A	view · diff
git:20260816.f29d9ab	2026-08-16	f29d9ab	1,638 B	A	view · diff
git:20260810.7cfad06	2026-08-10	7cfad06	1,658 B	A	view

Audit of the latest version

A 14 of 14 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Size between 200 bytes and 200 KB (1700 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag

Source

GitHub

truefoundry/trueforge · 6,446 stars · license MIT · pushed 2026-11-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_2phu6ez25biabqp2
GET https://markdownregistry.com/api/v1/resolve?ref=truefoundry/trueforge/.cursor/rules/server-types-runtime-only.mdc
GET https://markdownregistry.com/api/v1/blob/ba7d0e3e3c66c1c8fe7cf6d6ed22a178a3aaa802af7c40521e9695089954c1be

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: Cursor rules vs AGENTS.md · which agent file does what.