feature: add official morningstar plugin to claude financial services

[nik1097]

Adds the Mornignstar plugin to compliment the official Morningstar MCP connector on Claude.

[nik1097]

Tagging a subset of the maintainers for review. @tobinsouth @mattpic-ant @viveknair
Please let me know if there is a different process for this submission. I'm reaching out on behalf of Morningstar.
We are already signed up as an official MCP connector for Claude.

[tobinsouth]

this is plugin to add -- but we know long do this pattern of us hosting (hard to maintain), instead we will point to your github repo via marketplace.json

[nik1097]

Hey @tobinsouth where should I make the update? I see this module still points to local plugins?

https://github.com/anthropics/financial-services/blob/main/.claude-plugin/marketplace.json

[bryan-anthropic]

Hi @nik1097 — thanks for confirming, and good question. The update doesn't go into the
existing local entries — those source: "./plugins/..." pointers are for plugins vendored
into this repo, which is the pattern we're moving away from. Instead the marketplace entry
points at a plugin hosted in your own GitHub repo. Two steps:

1. Publish the plugin to a public Morningstar-owned GitHub repo.
Move the plugin tree that's currently in this PR (plugin.json, mcp.json, the three
skills/, icons/scripts) into a public repo you control — either a dedicated plugin repo
or a .claude-plugin/ folder in an existing one. The plugin's .claude-plugin/plugin.json
just needs to be resolvable at the repo (or subpath).

2. Rework this PR to a single pointer entry.
Drop the plugins/partner-built/morningstar/** files, and instead add one entry to
.claude-plugin/marketplace.json that references your repo, pinned to a commit:

{
  "name": "morningstar",
  "description": "<one-line description of the plugin>",
  "author": { "name": "Morningstar" },
  "category": "<category>",
  "source": {
    "source": "github",
    "repo": "Morningstar/<your-plugin-repo>",
    "commit": "<full-commit-sha>",
    "sha": "<full-commit-sha>"
  },
  "homepage": "https://www.morningstar.com"
}

A github-source entry like this resolves and installs cleanly alongside the existing
local entries — claude plugin install morningstar@claude-for-financial-services will
fetch your repo at the pinned commit. One small thing to keep consistent: the name on
the marketplace entry is the install handle, so it's cleanest if it matches the name in
your repo's plugin.json.

Happy to take another look once it's reworked. Thanks!

[nik1097]

@bryan-anthropic thank you for the detailed feedback. I have now updated the PR with your recommendations, please let me know if it requires further updates.