Obsidian Knowledge Trainer

AI-powered training plugin for Obsidian that reads your notes and generates interactive exercises in three formats:

• Flashcards — flip cards with self-rating
• Quizzes — multiple choice with instant feedback
• Open questions — free-text answers evaluated by AI

How it works

1. Open any note in your vault
2. Click the brain icon in the sidebar (or use Command Palette → "Start training session")
3. Choose question formats and count
4. Train and get instant feedback

The plugin parses your note's content, splits it by headings into chunks, and sends them to your AI provider to generate relevant questions. Switching between notes auto-updates the trainer.

Supported AI Providers

Provider	Models	API Key
Anthropic (Claude)	claude-haiku-4-5, claude-sonnet-4-6	console.anthropic.com
OpenAI (GPT)	gpt-4o-mini, gpt-4o	platform.openai.com
OpenRouter	Any model (Claude, GPT, Llama, Mistral...)	openrouter.ai
Custom	Any OpenAI-compatible API	Your server URL

Installation

From Obsidian Community Plugins (coming soon)

Search for "Knowledge Trainer" in Settings → Community Plugins.

Manual Installation

1. Download main.js, manifest.json, and styles.css from the latest release
2. Create folder: <your-vault>/.obsidian/plugins/knowledge-trainer/
3. Copy the three files into that folder
4. Restart Obsidian
5. Enable the plugin in Settings → Community Plugins

Setup

1. Open Settings → Knowledge Trainer
2. Choose your AI provider (Anthropic, OpenAI, OpenRouter, or Custom)
3. Paste your API key
4. Disable "Mock mode"
5. You're ready to train!

You can try the plugin without an API key — Mock mode is enabled by default and provides sample questions for testing.

Settings

Setting	Default	Description
Provider	Anthropic	AI provider for question generation
API Key	—	API key for the selected provider
Generation model	claude-haiku-4-5	Cheaper model for generating questions
Evaluation model	claude-sonnet-4-6	Smarter model for evaluating open answers
Questions per session	5	How many questions per training
Language	Russian	Language for generated questions (Russian / English)
Mock mode	On	Use test data without API calls

Cost

The plugin uses your own API key (BYOK — Bring Your Own Key). Estimated costs for Anthropic:

Action	Cost
Generate 5 questions (Haiku)	~$0.002
Evaluate 1 open answer (Sonnet)	~$0.01
Full session (5 questions, 2 open)	~$0.03
Daily training for a month	~$0.90

Costs vary by provider. OpenRouter often offers competitive pricing across models.

Features

Question Formats

Flashcards — See the question → click to reveal the answer → rate yourself: "Didn't know" / "Partially" / "Knew"

Quiz — 4 answer options → pick one → see if you're correct with explanation

Open Questions — Write your answer → AI evaluates it (score 1-5) → see detailed feedback and reference answer

Spaced Repetition

Progress is tracked using the SM-2 algorithm (same as Anki). Questions you struggle with appear more often. View your stats in the dashboard.

Question Caching

Generated questions are cached per note. If the note content hasn't changed, the plugin reuses cached questions instead of calling the API again. Cache auto-expires after 7 days.

Progress Dashboard

Track your learning progress:

• Streak (consecutive days of training)
• Mastery by topic (per-note progress bars)
• Due cards for review

Support

If you find this plugin useful, consider supporting development:

• Boosty — subscription or one-time donation
• Crypto: BTC / USDT (TRC-20)
• Telegram: contact the author directly

License

MIT