diff --git a/AGENTS.md b/AGENTS.md
index b9e728f45..705d7e0dc 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -16,6 +16,15 @@ The issue is the source of truth for work intended for an upstream pull request.
 
 Maintainer-directed work, urgent security fixes, release automation, and local or exploratory changes do not require a Ready issue.
 
+## GitHub Communication
+
+Write issue and pull request comments for humans, not as exhaustive work logs.
+
+- Lead with the conclusion or action needed.
+- Keep comments concise; do not repeat context already present in the thread.
+- Use short paragraphs or bullets, and include implementation details only when they affect a decision or review.
+- Prefer one clear summary over multiple incremental comments.
+
 ## Agent Loop Migration
 
 We are replacing the legacy agent loop in `crates/goose/src/agents/agent.rs` with the state machine in `crates/goose/src/agents/state_machine/`. The state-machine path is enabled with `GOOSE_STATE_MACHINE=1`.