ba-agent-mcp 0.2.0

MCP server exposing the Modern-Expo virtual Business Analyst Knowledge Base (read/derive tools).

ba-agent-mcp

An MCP server that exposes the Modern-Expo virtual Business Analyst Knowledge Base as a small set of read / derive tools. It never writes to SUPPA Docs or the Knowledge Base and is deliberately kept off the governed write path — authoring documents goes through the human-gated business-analyst skill, not this server.

Install

uvx ba-agent-mcp          # run on demand in an isolated environment (recommended)
# or
pip install ba-agent-mcp  # then run: ba-agent-mcp

Credentials — you supply your own

This package ships no credentials. Each user provides their own keys and their own SUPPA identity. Nothing is ever read from the MCP client JSON config; secrets are resolved from the environment, in this order:

1. real environment variables in the launching shell, then
2. an explicit env file at $BA_AGENT_ENV_FILE, then
3. ~/.ba-agent/.env

# ~/.ba-agent/.env   (or export these in your shell)
SUPABASE_URL=https://<your-project>.supabase.co
SUPABASE_SERVICE_ROLE_KEY=...        # or SUPABASE_ANON_KEY for read-only
SUPPA_API_KEY=...                    # your own SUPPA identity (or SUPPA_TOKEN)
GEMINI_API_KEY=...                   # optional — enables hybrid (vector) search
FIGMA_TOKEN=...                      # optional — enables analyze_figma

Never put any secret in the MCP client JSON. A tool whose credentials are absent returns a clear, structured error instead of failing the server, so you can add capabilities incrementally.

Connect (any MCP client)

{
  "mcpServers": {
    "ba-agent": {
      "command": "uvx",
      "args": ["ba-agent-mcp"],
      "env": { "BA_AGENT_ENV_FILE": "/absolute/path/to/your/.env" }
    }
  }
}

Tools

Tool	Returns
kb_search	Ranked KB hits with provenance (title, breadcrumb, SUPPA anchor, data_class).
kb_assemble_context	A cited grounding block for a question + coverage + strictest data_class.
kb_assemble_corpus	The whole project corpus grouped by document, for cross-corpus analysis.
kb_list_docs	Inventory of governed documents in a project (reads SUPPA under your own identity).
analyze_figma	A structured design profile of a Figma file (requires FIGMA_TOKEN).

Data governance

The KB read tools connect with the Supabase service-role key, which bypasses row-level security, so they fail closed at the application layer: any chunk that is not explicitly data_class = 'internal' is excluded from results. Consequence — client-classed content is not readable over MCP. The append-only logs never contain document bodies, only ids, hashes, identity, and HTTP status.

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Proprietary — Modern-Expo internal tooling. All rights reserved.