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io.github.fabienfrfr/pbix-lineage

Bidirectional data lineage graph for Power BI (.pbix) files, from source to display

Developer ToolsPythonv0.1.2

PbixAtlas is an Universal lineage graph for Power BI .pbix files: source to visual field in one traversable graph.

source (HTTP, OData, SQL, file...) --> Power Query (M)
    --> column / calculated column --> measure (DAX)
        --> field displayed in a report visual

Install

pip install pbix-atlas
# or
uv add pbix-atlas

Quick start

from pbix_atlas import LineageGraphBuilder, upstream, downstream, print_tree, find_nodes

graph = LineageGraphBuilder().build("my_report.pbix")

find_nodes(graph, "customer_name")
print_tree(graph, "visual_field::my_report.pbix::Page1::16::customer_name", direction="upstream")
print_tree(graph, "source::odata::example.com/odata/", direction="downstream")

Export

from pbix_atlas import export_graphml, export_nodes_csv, export_edges_csv, graph_summary

graph_summary(graph)  # {'query': 70, 'column': 183, ...}
export_graphml(graph, "lineage.graphml")  # Gephi / yEd
export_nodes_csv(graph, "nodes.csv")
export_edges_csv(graph, "edges.csv")

Codegen — standalone Python pipeline

Generates a single Python file reproducing a report's full chain: source → extraction → Power Query → semantic model → Vizro dashboard. The M source is executed at runtime by the built-in interpreter, not pattern-matched. Unimplemented functions raise MRuntimeError (no silent stubs).

pip install "pbix-atlas[codegen]"
pbix-atlas-codegen my_report.pbix -o pipeline.py
from pbix_atlas import generate_python_pipeline

generate_python_pipeline("my_report.pbix", "pipeline.py")

HTTP API / MCP server

uv sync --extra api
uv run pbix-atlas    # http://127.0.0.1:8080
  • REST: POST /graphs, /search, /upstream, /downstream, /tree, /export, /codegen
  • MCP (streamable HTTP): http://127.0.0.1:8080/mcp/
  • Env vars: PBIX_LINEAGE_HOST, PBIX_LINEAGE_PORT

Architecture

ModuleResponsibility
models.pyNode/edge types and shared data structures
sources.pyPhysical source detection (configurable patterns)
pbix_model.pyAdapter isolating from pbixray
m_lexer.py / m_parser.pyBuilt-in M tokenizer and parser
m_interpreter.pyM runtime interpreter + stdlib
dax_translate.pyDAX → Python (supported subset)
dax.pyDAX reference parsing
mquery.pyPower Query dependencies (table-level)
layout.pyInternal Report/Layout format parsing
graph_builder.pyOrchestrator: builds the networkx.DiGraph
navigation.pyUpstream/downstream traversal, search, export
codegen.pyPython pipeline code generation
api/app.pyFastAPI + MCP mount (FastMCP)

Sample files

Development

uv sync --extra dev
uv run pytest
uv build

Installation

Source-derived launch command. Check the maintainer’s required arguments and credentials before running:

bash
uvx pbix-lineage

Set up in your AI client

Merge this template into ~/Library/Application Support/Claude/claude_desktop_config.json. Keep existing servers. Add any arguments, credentials, and permissions required by the maintainer; this template has not been install-tested.

json
{
  "mcpServers": {
    "io-github-fabienfrfr-pbix-lineage": {
      "command": "uvx",
      "args": [
        "pbix-lineage"
      ]
    }
  }
}

Restart Claude Desktop completely for changes to take effect. Confirm the server appears connected in the client’s tool list, then try a read-only example from its documentation.

Claude Desktop setup reference

Package

pbix-lineagepypi

Compatible MCP Clients

io.github.fabienfrfr/pbix-lineage works with any MCP-compatible client. Copy the config snippet from the Configuration section above and add it to the file shown for your client, then restart the application.

  • Claude Desktop~/Library/Application Support/Claude/claude_desktop_config.jsonRestart Claude Desktop completely for changes to take effect.
  • Cursor~/.cursor/mcp.jsonRestart Cursor for changes to take effect.
  • VS Code.vscode/mcp.jsonReload VS Code window for changes to take effect.
  • Windsurf~/.codeium/windsurf/mcp_config.jsonRestart Windsurf for changes to take effect.
  • Claude Code.mcp.jsonSave at the project root, then start Claude Code in that project and review the MCP server approval prompt. Keep real credentials out of shared files.

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