Bub's AGENTS.md would append to the context

[SheffeyG]

Hi, I am running bub by following the documents

git clone https://github.com/bubbuild/bub.git
cd bub
uv sync
uv run bub gateway

now I am in the bub codebase dir, and as the documents said

If AGENTS.md exists in the workspace, it is appended to the system prompt automatically.

which means the bub's AGENTS.md would append to the context everytime I run bub, but I run this agent is not for developing bub itself, is this behavior predictable?