diff --git a/AGENTS.md b/AGENTS.md
new file mode 100644
index 0000000..4660ad4
--- /dev/null
+++ b/AGENTS.md
@@ -0,0 +1,11 @@
+# PriceForge — Instructions for Codex
+
+## Shared Engineering Rules
+Read `bible/` — shared rules for all projects (CSV, logging, DB, tables, background tasks, code style).
+Start with `bible/rules/patterns/` for specific contracts.
+
+## Project Architecture
+Read `bible-local/` — PriceForge specific architecture.
+Read order: `bible-local/BIBLE.md` → relevant files for the task.
+
+Every architectural decision specific to this project must be recorded in `bible-local/history.md`.