diff --git a/pyproject.toml b/pyproject.toml
index 560ce82..0925e07 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,6 +22,13 @@ dependencies = [
 
 # Dev tooling as a PEP 735 dependency-group (uv includes it by default in `uv sync`/`uv run`),
 # so the documented bare `uv sync` + `uv run pytest` workflow installs it without `--extra`.
+#
+# INTENTIONAL, RECORDED DEVIATION (Fase 2 review F4): the original plan Step 1 authorized only
+# moving `agent-framework-orchestrations` + `pulp` from the dev extra into core. Migrating the
+# dev group from `[project.optional-dependencies]` to this PEP 735 `[dependency-groups]` block
+# went beyond that stated scope, but is KEPT (not reverted) because it is what makes the brief's
+# Success Criterion SC1 ("bare `uv sync` + `uv run pytest`") install dev tooling without
+# `--extra` — reverting would break SC1. Logged here so the deviation is no longer silent.
 [dependency-groups]
 dev = [
     "pytest>=8",