Obsidian and AI: ask questions about your own notes

A useful answer about your notes should lead back to its source. If an agent confidently describes a decision but cannot show where it was recorded, the conclusion is difficult to verify. Start by preparing a small collection of material and clear citation rules.

Obsidian stores notes as Markdown files inside a vault. You can therefore work with a copy of selected notes using a tool that reads local files. How Obsidian stores data.

• How Obsidian stores data

Start with a copy of one topic

Choose notes about one project: meetings, decisions and open questions. Copy them into a separate folder, keeping meaningful filenames and structure. The original vault remains a useful reference.

notes-for-ai/
├── meetings/
│   ├── 2026-09-01.md
│   └── 2026-09-08.md
├── decisions/
│   └── website-scope.md
└── questions.md

This is a sample structure. Remove anything the task does not need: personal entries, secrets and third-party information. A local file may still reach a cloud model if the agent sends its contents there. Storage location and processing location are separate questions.

Connect the notes to an agent

Open the prepared folder in a tool that works with local files. For example, launch Claude Code from that directory. For the first request, ask it only to read and answer in chat:

Work with this copy of the notes. Find which features we decided to include in the first website version. For every conclusion, provide the filename and section heading. Separate approved decisions from proposals. If sources conflict, show the disagreement. Do not modify files.

This is an original workflow example, not a demonstration of an installed plugin. Claude Code's file-reading capabilities are described in its product overview.

• product overview

Avoid starting with “read everything and remember it.” Give the question boundaries. Establish an accurate answer on one topic before expanding the source collection.

Why ordinary search is a good first step

If you know the project name or a distinctive term, use Obsidian's built-in search first. Give the relevant entries to the agent afterward. This creates a clear starting set and helps reveal a missing document. Obsidian Search.

• Obsidian Search

Semantic search helps when an idea was expressed in different words. Even then, open the entire matching passage: nearby text may contain a qualification, a cancellation date or a link to a newer decision.

Verify an answer against the notes

Open each cited entry and check three things: whether it actually supports the claim, who made it and whether it was later revised. A file's latest modification date is not necessarily the decision date; it may have been edited for another reason.

For a practice check, create two short entries. In the first, propose including a user account area. In the second, record the decision to defer it beyond the first release. A correct answer should distinguish the proposal from the adopted scope limit.

Then ask a question the copied notes cannot answer—for example, the final budget if no document states it. A useful answer acknowledges missing information instead of inventing a plausible amount.

Save a summary without losing the sources

After verification, request a separate draft:

# First website release

## Approved decisions
- Decision, date and link to the original entry.

## Deferred
- What was postponed and why.

## Unresolved
- Conflicts and questions without a confirmed answer.

Save it as a new document instead of replacing the original meeting notes. If decisions change, the basis of the earlier conclusion remains visible. Use your vault's usual link format and check that the links open correctly.

When a dedicated plugin helps

A plugin becomes useful when searching and questioning notes is a regular part of your work. Before choosing one, check what it indexes, where it sends text, how the index updates and whether it cites sources. A polished interface does not answer those questions.

For occasional questions, a prepared copy and a general-purpose agent may be enough. With a large vault, first identify the problem: slow document discovery, missed connections or answers you cannot verify. Choose a tool around that need.