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# Lumen

Lumen connects an Obsidian vault to a local research backend, surfacing related notes and assembling reports whose citations are checked against the vault.

[Source code](https://github.com/Slaymish/Lumen)

Independent plugin and backend development. TypeScript, Python and local model inference.

![Lumen’s actual research form in Obsidian, showing question input, sub-questions, vault and web sources, and memory controls.](https://cdn.sanity.io/images/qnuj1c4o/production/94a5e0191782616c6a3cc0ff81e1f7262fc6acd2-1600x1200.png?w=1280\&q=80\&auto=format)

I worked on Lumen as a way of finding material already sitting in a vault, and the same retrieval system could surface related notes during ordinary writing or feed a longer research request, with the original note blocks kept available as sources when related material was assembled into a report.

The Obsidian plugin talked to a Python orchestrator, with separate packages for ingestion, retrieval, inference and memory, while a local model produced the research output and streamed progress back to the interface.

Citation handling checked references against actual note blocks, and the project included evaluation and release tooling, though a valid source reference still needs to be read alongside the claim it is attached to.

The catalogue date follows the first preserved release on 16 May 2026.

## Outcome

A released local research plugin and backend, with note surfacing, report generation and source-block checks. GitHub preserves the plugin packages and evaluation code.

[All work](/work?type=work)