chore: enforce path-first dependency sources

Author: nshkrdotcom

build_support/dependency_sources.exs

@@ -1,4 +1,4 @@
-defmodule Gemini.DependencySources do
+defmodule DependencySources do
   @moduledoc false
 
   # Settled common dependency-source helper.
@@ -31,7 +31,7 @@ defmodule Gemini.DependencySources do
   #   H4 `release_dag/0` / `release_order/0` - the machine-readable release
   #      order that H1 reads.
 
-  @helper_version 5
+  @helper_version 7
   @repo_root Path.dirname(__DIR__)
 
   @source_keys [:path, :github, :hex]
@@ -84,7 +84,9 @@ defmodule Gemini.DependencySources do
     codex_sdk: [:cli_subprocess_core],
     claude_agent_sdk: [:cli_subprocess_core],
     cursor_cli_sdk: [:cli_subprocess_core],
-    agent_session_manager: [:cli_subprocess_core, :cursor_cli_sdk],
+    antigravity_cli_sdk: [:cli_subprocess_core],
+    amp_sdk: [:cli_subprocess_core],
+    agent_session_manager: [:cli_subprocess_core],
     gemini_ex: [],
     inference: []
   }

mix.exs

@@ -1,4 +1,4 @@
-unless Code.ensure_loaded?(Gemini.DependencySources) do
+unless Code.ensure_loaded?(DependencySources) do
   Code.require_file("build_support/dependency_sources.exs", __DIR__)
 end
 
@@ -55,7 +55,7 @@ defmodule Gemini.MixProject do
   end
 
   defp deps do
-    Gemini.DependencySources.deps() ++
+    DependencySources.deps(__DIR__) ++
       [
         # Core dependencies
         {:req, "~> 0.6.2"},

test/dependency_sources_test.exs

@@ -1,7 +1,7 @@
 defmodule DependencySourcesTest do
   use ExUnit.Case, async: true
 
-  @helper Gemini.DependencySources
+  @helper DependencySources
 
   setup do
     workspace =
@@ -88,13 +88,13 @@ defmodule DependencySourcesTest do
       workspace: workspace,
       root: root
     } do
-      write_sibling!(workspace, "cli_subprocess_core", "0.2.0")
-      write_config!(root, dep_config("cli_subprocess_core", ~s("~> 0.2.0")))
+      write_sibling!(workspace, "cursor_cli_sdk", "0.2.0")
+      write_config!(root, dep_config("cursor_cli_sdk", ~s("~> 0.2.0")))
 
       assert {:error, blockers} =
                @helper.publish_preflight(root, package: :agent_session_manager)
 
-      assert [%{app: :cursor_cli_sdk, reason: :missing_release_prerequisite}] = blockers
+      assert [%{app: :cli_subprocess_core, reason: :missing_release_prerequisite}] = blockers
     end
 
     test "an empty manifest has nothing to preflight", %{root: root} do
@@ -290,7 +290,7 @@ defmodule DependencySourcesTest do
       assert dag[:codex_sdk] == [:cli_subprocess_core]
       assert dag[:claude_agent_sdk] == [:cli_subprocess_core]
       assert dag[:cursor_cli_sdk] == [:cli_subprocess_core]
-      assert dag[:agent_session_manager] == [:cli_subprocess_core, :cursor_cli_sdk]
+      assert dag[:agent_session_manager] == [:cli_subprocess_core]
       assert dag[:gemini_ex] == []
       assert dag[:inference] == []
     end
@@ -412,7 +412,7 @@ end
 defmodule DependencySourcesNoticeTest do
   use ExUnit.Case, async: false
 
-  @helper Gemini.DependencySources
+  @helper DependencySources
 
   setup do
     workspace =