Your World Has Rules. Now They Hold Up.
Real-world fact-checking against your world's own axioms. Define how your setting differs from reality, and WorldKnowledge flags prose that contradicts either one. Catches the copper kettle in a world where copper doesn't exist, before a reader writes in about it.
World Rules & Axioms
Define how your world differs from reality. A guided questionnaire walks you through every domain — physics, magic, geography, metaphysics — and every rule you write links back to the Legendry entries that depend on it.
Guided questionnaire covering physics, magic, technology, geography, and custom freeform axioms.
Guided Questionnaire
Step-by-step wizard covering physics, astronomy, magic, technology, geography, species, and metaphysics. Answer the questions your world needs answered.
Physics & Astronomy
Does gravity work the same? How many suns? Define the physical laws that shape your world's environment and how they diverge from ours.
Magic & Technology
Hard magic systems, soft magic, magitech hybrids. Define what's possible, what's forbidden, and what the costs are.
Geography & Species
Climate systems, biomes, sentient species, biological rules. Everything the fact-checker needs to know about what lives where and why.
Metaphysics
Afterlife, souls, divine intervention, fate vs free will. The philosophical underpinnings that govern how your world fundamentally operates.
Custom Freeform Rules
Anything that doesn't fit a category. Add tagged freeform rules and link them to lore entries for full traceability.
Async Fact-Check Pipeline
A verification pipeline that runs in the background while you keep writing. Claims get extracted from your prose, evidence gets retrieved from your local Wikipedia index and your world rules, and anything that doesn't hold up gets flagged for your review. You decide what to keep.
Claim extraction, indexed evidence retrieval, and verification verdict with learned dismissal patterns.
- Claim Extraction
- The pipeline reads your prose and identifies factual claims — dates, distances, physical properties, historical assertions — anything that can be checked.
- Evidence Retrieval via FTS5
- Extracted claims are matched against your local Wikipedia index using SQLite FTS5 full-text search. Fast, local, no API calls required.
- Claim Verification
- Each claim is verified against retrieved evidence and your world rules. Claims that align with your axioms pass. Claims that contradict real-world facts without a supporting world rule get flagged.
- Flag Persistence with Learning
- Flags persist across sessions. Dismiss a flag with a reason, and the system learns the pattern so it stops flagging similar things in future passes. Over time, the noise drops and only the real contradictions surface.
Dismissal & Pattern Learning
The fact-checker adapts to you as you use it. Dismiss a false positive with a reason, and the system suppresses similar flags on future passes. The tool learns the difference between your intentional choices and your actual mistakes.
- Dismiss with Reasons
- Every dismissal includes a reason — "this is intentional," "covered by world rule X," or a custom explanation. The system stores the pattern behind the dismissal, so it can recognize similar cases next time.
- Pattern Learning
- Dismissed patterns train the fact-checker to suppress similar flags in future checks. Over time, the noise drops and only genuine contradictions surface.
- Aggressiveness Settings
- Three levels — Conservative, Balanced, Aggressive — control how many claims the pipeline extracts and how strictly it verifies. Conservative for final drafts, aggressive for worldbuilding passes.
Wikipedia Integration
A local Wikipedia knowledge base built into the app. Download topics, search by keyword or meaning, and give the fact-checker real-world context without leaving Ishvana.
FTS5 Full-Text Search
SQLite FTS5-powered search across your downloaded Wikipedia articles. Instant results, no network required, runs entirely on your machine.
Topic Downloads
Download curated topic packs — Science, History, Geography, Technology, Mythology, Society & Culture — or browse specific categories and pick exactly what you need.
Category Tree Browsing
Navigate Wikipedia's category hierarchy to find and download articles in specific domains. Drill down from broad topics to niche subjects.
ChromaDB Semantic Embedding
Optional semantic search layer. Embed downloaded articles as vectors in ChromaDB for meaning-based retrieval. Search "medieval siege tactics" and find articles about trebuchets.
Chat & Configuration
Talk to the WorldKnowledge agent directly. Ask it questions, run fact-checks, manage your world rules — all through a conversational interface with real tool-calling underneath.
- Freeform Chat
- Ask the agent anything about the real world or about your world's rules. It searches Wikipedia, cross-references your axioms, and gives you sourced answers instead of confident guesses.
- Tool-Calling Loop
- The agent calls tools on its own — Wikipedia search, fact-check, world rules lookup, lore cross-reference — to build a real answer without you orchestrating each step manually.
- Claims Per Batch
- Control how many claims the pipeline extracts per run. Higher counts catch more issues but take longer. Tune it for the time you've got.
- Custom Storage Paths
- Point the Wikipedia index and fact-check database at any directory on your machine. Fast SSD, network drive, or external storage — your call.