diff --git a/AGENTS.md b/AGENTS.md
index 5ae8248..0b948ef 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -78,5 +78,6 @@ For the original paper (the substrate: reward-hacking LeetCode env)
 - LessWrong post: ./docs/papers/2025_lw_ariahw_steering-rl-training-benchmarking-interventions.md
 - Code: ./docs/vendor/rl-rewardhacking
 
-For the gradient-routing prior (SGTM; source of the absorption/leakage vocab)
+For the gradient-routing prior (SGTM = latest gradient-routing paper, same authors as
+the original; source of the absorption/leakage vocab)
 - ./docs/papers/grad_routing/paper_sgtm.md
\ No newline at end of file