claude-code: added 'agentsDir' option to specify agents from filesystem

tests/modules/programs/claude-code/agents-dir.nix

@@ -0,0 +1,14 @@
+{
+  programs.claude-code = {
+    enable = true;
+    agentsDir = ./agents;
+  };
+
+  nmt.script = ''
+    assertFileExists home-files/.claude/agents/test-agent.md
+    assertLinkExists home-files/.claude/agents/test-agent.md
+    assertFileContent \
+      home-files/.claude/agents/test-agent.md \
+      ${./agents/test-agent.md}
+  '';
+}

tests/modules/programs/claude-code/agents/test-agent.md

@@ -0,0 +1,6 @@
+---
+name: test-agent
+description: Test agent for agentsDir functionality
+---
+
+This is a test agent to verify that agentsDir works correctly.

tests/modules/programs/claude-code/assertion.nix

@@ -20,10 +20,17 @@
       text = "Some text content";
       source = ./expected-memory.md;
     };
+
+    # assert fail: cannot set agents and agentsDir at the same time.
+    agents = {
+      test-agent = "test content";
+    };
+    agentsDir = ./agents;
   };
 
   test.asserts.assertions.expected = [
     "`programs.claude-code.package` cannot be null when `mcpServers` is configured"
     "Cannot specify both `programs.claude-code.memory.text` and `programs.claude-code.memory.source`"
+    "Cannot specify both `programs.claude-code.agents` and `programs.claude-code.agentsDir`"
   ];
 }

tests/modules/programs/claude-code/default.nix

@@ -5,4 +5,5 @@
   claude-code-assertion = ./assertion.nix;
   claude-code-memory-management = ./memory-management.nix;
   claude-code-memory-from-source = ./memory-from-source.nix;
+  claude-code-agents-dir = ./agents-dir.nix;
 }

tests/modules/programs/claude-code/expected-agents-readme.md

@@ -0,0 +1,8 @@
+# Claude Code Agents
+
+## Current Configuration
+Test implementation of agents directory management.
+
+## Available Agents
+- This is a test configuration
+- AgentsDir should be created at ~/.claude/agents/README.md