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website/concepts/contradiction-detection.md

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+# Contradiction Detection
+
+::: warning Experimental
+Contradiction detection is a planned capability, not a shipped end-to-end feature in the current MCP workflow. The examples below show the intended behavior rather than a fully integrated command path.
+:::
+
+## What It Does
+
+Checks assertions against entity facts in the knowledge graph. When enabled, it catches contradictions like:
+
+```
+Input:  "Soren finished the auth migration"
+Output: 🔴 AUTH-MIGRATION: attribution conflict — Maya was assigned, not Soren
+
+Input:  "Kai has been here 2 years"
+Output: 🟡 KAI: wrong_tenure — records show 3 years (started 2023-04)
+
+Input:  "The sprint ends Friday"
+Output: 🟡 SPRINT: stale_date — current sprint ends Thursday (updated 2 days ago)
+```
+
+## How It Works
+
+Facts are checked against the knowledge graph:
+- **Attribution conflicts** — the wrong person credited for a task
+- **Temporal errors** — wrong dates, tenures, or durations
+- **Stale information** — facts that have been superseded
+
+Ages, dates, and tenures are calculated dynamically from the entity's recorded facts — not hardcoded.
+
+## Status
+
+The current codebase includes the temporal knowledge graph primitives needed for this direction, but not a complete contradiction-checking tool exposed through the CLI or MCP server.