lucianschw-dev bolts an EU-law brain onto Mike's chat

A second chat endpoint hands questions off to a dedicated EU-law tool service running alongside the main app.

integrationchat-ui

lucianschw-dev's fork adds a parallel chat experience tuned for European law. When a user asks something in this lane, the assistant can call out to a separate service - a sibling app whose only job is answering EU-law questions with the right tools and sources - and weave the results back into the conversation.

The plumbing uses MCP, an emerging standard for letting AI assistants call external tool servers in a structured way. Unusually, this fork wires the two services together over plain web requests rather than the more common local pipe, which makes the EU-law brain easy to deploy and scale on its own. The chat endpoint itself is largely cloned from Mike's existing one, so there's some near-duplication waiting to be tidied - but the hand-off mechanism underneath is the genuinely reusable idea here.

So what Worth a look for any legal-tech team weighing how to bolt jurisdiction-specific or domain-specific reasoning onto a general legal assistant without forking the whole product.

Spotted something wrong? Or know the PR text has fresher detail than the writeup above?

Commits in this thread

2 commits from lucianschw-dev/eumike, oldest first. Source extracted verbatim from the harvested git log.

SHA	Subject	Author	Date
`3f39cef1`	Add /eu-law-chat endpoint and MCP dispatcher hook	Lucian.schw	2026-05-17	↗ GitHub
commit body - chatTools.ts: optional mcpTools parameter on runLLMStream (intercepts named tool calls and routes them to an external dispatcher before they fall through to runToolCalls) - euLawMcp.ts: thin HTTP client for the eu-law MCP server, plus dispatchEuLawCalls wired into chatTools.ts's mcpTools.dispatch slot - euLawChat.ts: copy of /chat with EU_LAW_SYSTEM_PROMPT_EXTRA, 4 hand-written tool schemas, and the MCP dispatcher - index.ts: register /eu-law-chat router and apply chat rate limiters
`30efd52d`	Backend npm install: lockfile refresh	Lucian.schw	2026-05-17	↗ GitHub

SHA

Subject

Author

Date

3f39cef1

Add /eu-law-chat endpoint and MCP dispatcher hook

Lucian.schw

2026-05-17

↗ GitHub

commit body

- chatTools.ts: optional mcpTools parameter on runLLMStream (intercepts
  named tool calls and routes them to an external dispatcher before they
  fall through to runToolCalls)
- euLawMcp.ts: thin HTTP client for the eu-law MCP server, plus
  dispatchEuLawCalls wired into chatTools.ts's mcpTools.dispatch slot
- euLawChat.ts: copy of /chat with EU_LAW_SYSTEM_PROMPT_EXTRA, 4
  hand-written tool schemas, and the MCP dispatcher
- index.ts: register /eu-law-chat router and apply chat rate limiters

30efd52d

Backend npm install: lockfile refresh

Lucian.schw

2026-05-17

↗ GitHub

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