docs(README): `@modelcontextprotocol/fastify` missing from middleware listing

[sceran]

While reading the v2 README, I noticed @modelcontextprotocol/fastify is published (packages/middleware/fastify/package.json has "private": false and the same 2.0.0-alpha.2 version as the other middleware packages) but absent from the README in three places:

1. Overview (around line 32) — the parenthetical reads "(Express, Hono, Node.js HTTP)"; Fastify is omitted.
2. Middleware packages section (around lines 49–52) — the bullet list documents @modelcontextprotocol/node, /express, and /hono with no /fastify entry.
3. Installation (around lines 83–91) — npm install commands for node, express, and hono, with no fastify line.

The other three middleware packages share the same private: false + 2.0.0-alpha.2 shape and are documented, so this looks like an oversight rather than intentional exclusion. The package already has its own packages/middleware/fastify/README.md.

Happy to send a small docs-only PR adding fastify alongside the other three. Let me know if there's a reason fastify should be excluded from the top-level README at this stage.

[mcp-claude]

confirmed on main (3834921). packages/middleware/fastify is published (private: false, 2.0.0-beta.2, same shape as node/express/hono and its own README) but the top-level README.md has zero occurrences of the string fastify. the three sites the reporter identified are the only places to touch — the fix is adding a parallel entry in each.

repro.ts

// Repro for issue #2112: `@modelcontextprotocol/fastify` missing from top-level README.
//
// Verifies two facts:
//   1. The fastify middleware package exists on main and is a published (private:false)
//      sibling of node/express/hono at the same version.
//   2. The top-level README.md mentions node/express/hono in three places
//      (overview line, middleware bullet list, and install commands) but omits fastify.

import { readFileSync } from 'node:fs';
import { join } from 'node:path';

const root = new URL('.', import.meta.url).pathname;
const middlewareDir = join(root, 'packages/middleware');
const pkgs = ['node', 'express', 'hono', 'fastify'] as const;

console.log('== published middleware packages ==');
for (const pkg of pkgs) {
    const p = JSON.parse(readFileSync(join(middlewareDir, pkg, 'package.json'), 'utf8'));
    console.log(
        `  ${p.name.padEnd(32)} version=${p.version} private=${p.private ?? '(unset -> defaults to false)'}`,
    );
}

const readme = readFileSync(join(root, 'README.md'), 'utf8');

console.log('\n== README mentions per package (case-insensitive) ==');
for (const pkg of pkgs) {
    const nameMentions = (readme.match(new RegExp(`@modelcontextprotocol/${pkg}\\b`, 'gi')) ?? []).length;
    const bareMentions = (readme.match(new RegExp(`\\b${pkg}\\b`, 'gi')) ?? []).length;
    console.log(`  ${pkg.padEnd(8)} @modelcontextprotocol/${pkg}=${nameMentions}   any '${pkg}'=${bareMentions}`);
}

const readmeHasFastify = /fastify/i.test(readme);
console.log(`\nREADME contains 'fastify' at all: ${readmeHasFastify}`);

if (!readmeHasFastify) {
    console.log('\nREPRODUCED: fastify package is published but zero mentions in the top-level README.');
    process.exit(0);
} else {
    console.log('\nNOT REPRODUCED: README mentions fastify.');
    process.exit(1);
}

run + output (before fix)

$ npx tsx repro.ts
== published middleware packages ==
  @modelcontextprotocol/node       version=2.0.0-beta.2 private=(unset -> defaults to false)
  @modelcontextprotocol/express    version=2.0.0-beta.2 private=false
  @modelcontextprotocol/hono       version=2.0.0-beta.2 private=false
  @modelcontextprotocol/fastify    version=2.0.0-beta.2 private=false

== README mentions per package (case-insensitive) ==
  node     @modelcontextprotocol/node=2   any 'node'=7
  express  @modelcontextprotocol/express=2   any 'express'=7
  hono     @modelcontextprotocol/hono=2   any 'hono'=7
  fastify  @modelcontextprotocol/fastify=0   any 'fastify'=0

README contains 'fastify' at all: false

REPRODUCED: fastify package is published but zero mentions in the top-level README.

suggested fix

// README.md
@@ overview parenthetical (L41)
- - Optional **middleware packages** for specific runtimes/frameworks (Express, Hono, Node.js HTTP)
+ - Optional **middleware packages** for specific runtimes/frameworks (Express, Fastify, Hono, Node.js HTTP)

@@ middleware bullet list (L59-61)
  - **`@modelcontextprotocol/node`**: Node.js Streamable HTTP transport wrapper for `IncomingMessage` / `ServerResponse`
  - **`@modelcontextprotocol/express`**: Express helpers (app defaults + Host header validation)
+ - **`@modelcontextprotocol/fastify`**: Fastify helpers (app defaults + Host header validation)
  - **`@modelcontextprotocol/hono`**: Hono helpers (app defaults + JSON body parsing hook + Host header validation)

@@ install-section intro (L87) — same omission, one line above the code block
- The SDK also publishes optional "middleware" packages that help you **wire MCP into a specific runtime or web framework** (for example Express, Hono, or Node.js `http`).
+ The SDK also publishes optional "middleware" packages that help you **wire MCP into a specific runtime or web framework** (for example Express, Fastify, Hono, or Node.js `http`).

@@ install snippet (L92-100)
  # Express integration:
  npm install @modelcontextprotocol/express express

+ # Fastify integration:
+ npm install @modelcontextprotocol/fastify fastify
+
  # Hono integration:
  npm install @modelcontextprotocol/hono hono

after the edit, the repro reports 4 mentions of fastify across the four sites (overview, install-intro, bullet list, install snippet) and the sibling packages remain untouched.

no runtime test added — the change is pure documentation with no code path to exercise, and the repo has no existing docs-lint harness to hook into. verification is a re-run of the repro above.

note: packages/middleware/README.md (the sub-tree README) has the same omission in its "Packages" bullet list. out of scope for the issue as filed but worth a follow-up so the two READMEs stay in sync. test/integration/package.json also lacks @modelcontextprotocol/fastify in its devDependencies alongside express/node — again a separate follow-up.

[ayaangazali]

hi, mind if i pick this up? checked against main today and it still holds: packages/middleware/fastify is private: false (2.0.0-beta.4 at the moment) but the root README has zero mentions of fastify.

while grepping for other listings i found the same omission in three more spots: the packages list in packages/middleware/README.md, the framework adapters line in packages/server/README.md, and the disambiguation note at the top of docs/clients/middleware.md. planning to fix all of them in one small PR since it's the same one-line pattern everywhere, but happy to keep it to just the root README if you'd rather.

(freshman in college getting into OSS, using claude code to help me verify things against main. will keep the diff tiny)