test(actors): fix actor examples missing provider fields and incorrect name

Add missing provider: field to all actor examples in examples/actors/.
Fix llm_with_tools.yaml actor name from assistants/file_analyzer to
local/assistants-file_analyzer (custom actors must use local/ namespace
and cannot contain two slashes).

Add validate-all command to helper_actor_examples.py that uses ActorLoader
to validate all examples via business logic checks. Add integration test
Validate All Actor Examples Import Without Errors to actor_examples.robot
that confirms every example in examples/actors/ can be imported without
errors.

ISSUES CLOSED: #1504

examples/actors/code_review.yaml

@@ -7,6 +7,7 @@ description: Runs a code review and merges to make the best possible.
 version: "0.0"
 
 # LLM model form is Claude Opus 4
+provider: anthropic
 model: claude-opus-4-20250514
 
 system_prompt: |

examples/actors/estimator.yaml

@@ -6,6 +6,7 @@ type: llm
 description: Generates pre-execution effort, duration, and risk estimates for implementation planning
 version: "1.0"
 
+provider: openai
 model: gpt-4
 role_hint: estimation
 context_view: strategist

examples/actors/graph_workflow.yaml

@@ -7,6 +7,7 @@ description: Test-driven development workflow with automated testing and feedbac
 version: "1.0"
 
 # LLM model for agent nodes
+provider: openai
 model: gpt-4
 
 # Graph topology

examples/actors/hierarchical_workflow.yaml

@@ -8,6 +8,7 @@ description: >-
   Multi-agent development workflow with a strategist, implementer, and
   reviewer. Each node has fine-grained LSP and tool-source control.
 version: "1.0"
+provider: openai
 model: gpt-4
 
 # Actor-level skill references

examples/actors/llm_with_tools.yaml

@@ -1,12 +1,13 @@
 # LLM Actor with Tools
 # Demonstrates an LLM actor with access to multiple tools
 
-name: assistants/file_analyzer
+name: local/assistants-file_analyzer
 type: llm
 description: Analyzes files and generates reports using file system tools
 version: "1.0"
 
 # LLM configuration
+provider: openai
 model: gpt-4-turbo
 system_prompt: |
   You are a file analysis assistant. Use the available tools to:

examples/actors/simple_graph.yaml

@@ -7,6 +7,7 @@ description: Simple document processing workflow (extract → analyze → summar
 version: "1.0"
 
 # LLM model
+provider: openai
 model: gpt-3.5-turbo
 
 # Graph topology

examples/actors/simple_llm.yaml

@@ -7,6 +7,7 @@ description: Reviews Python code for best practices, style, and potential bugs
 version: "1.0"
 
 # LLM configuration
+provider: openai
 model: gpt-4
 system_prompt: |
   You are an expert Python code reviewer. Review code for:

examples/actors/strategy_with_subplan.yaml

@@ -18,6 +18,7 @@ description: >
   using the builtin/plan-subplan tool.
 version: "1.0"
 
+provider: openai
 model: gpt-4-turbo
 context_view: strategist
 

robot/actor_examples.robot

@@ -38,6 +38,7 @@ Validate LLM With Tools Example
     Should Be Equal As Integers    ${result.rc}    0
     Should Contain    ${result.stdout}    actor-ok
     Should Contain    ${result.stdout}    type:llm
+    Should Contain    ${result.stdout}    name:local/assistants-file_analyzer
     Should Contain    ${result.stdout}    has-tools
 
 Validate Estimator Example
@@ -176,3 +177,22 @@ Reject GRAPH Actor Without Route
     Should Be Equal As Integers    ${result.rc}    0
     Should Contain    ${result.stdout}    expected-fail
     Should Contain    ${result.stdout}    route
+
+Validate All Actor Examples Import Without Errors
+    [Documentation]    Validate that all actor examples in examples/actors/ can be
+    ...                imported without errors using ActorLoader business logic checks.
+    ...                This is the integration test required by issue #1504 Definition of Done.
+    [Tags]    slow
+    ${result}=    Run Process    ${PYTHON}    ${HELPER}    validate-all    ${EXAMPLES_DIR}    cwd=${WORKSPACE}
+    Log    ${result.stdout}
+    Log    ${result.stderr}
+    Should Be Equal As Integers    ${result.rc}    0
+    Should Contain    ${result.stdout}    all-examples-ok:
+    Should Contain    ${result.stdout}    actor-imported:local/assistants-file_analyzer
+    Should Contain    ${result.stdout}    actor-imported:local/strategy_with_subplan
+    Should Contain    ${result.stdout}    actor-imported:local/estimator
+    Should Contain    ${result.stdout}    actor-imported:local/code-review
+    Should Contain    ${result.stdout}    actor-imported:utilities/file_operations
+    Should Contain    ${result.stdout}    actor-imported:workflows/document_processor
+    Should Contain    ${result.stdout}    actor-imported:workflows/test_driven_dev
+    Should Contain    ${result.stdout}    actor-imported:workflows/dev-workflow

robot/helper_actor_examples.py

@@ -10,6 +10,7 @@ Usage:
     python robot/helper_actor_examples.py check-pattern <yaml_file> <pattern>
     python robot/helper_actor_examples.py check-docs <doc_file>
     python robot/helper_actor_examples.py check-doc-patterns <doc_file>
+    python robot/helper_actor_examples.py validate-all <directory>
 """
 
 from __future__ import annotations
@@ -22,6 +23,7 @@ _SRC = str(Path(__file__).resolve().parents[1] / "src")
 if _SRC not in sys.path:
     sys.path.insert(0, _SRC)
 
+from cleveragents.actor.loader import ActorLoader  # noqa: E402
 from cleveragents.actor.schema import ActorConfigSchema, ActorType  # noqa: E402
 
 
@@ -189,6 +191,27 @@ def check_doc_patterns(doc_file: str) -> int:
         return 1
 
 
+def validate_all_examples(directory: str) -> int:
+    """Validate all actor examples in a directory via ActorLoader business logic.
+
+    Uses ActorLoader (which applies ActorConfigSchema validation) to discover
+    and validate every YAML file in the given directory.  Prints one
+    ``actor-imported:<name>`` line per successfully loaded actor and a final
+    ``all-examples-ok:<count>`` summary line.  Returns 1 on any failure.
+    """
+    try:
+        examples_dir = Path(directory)
+        loader = ActorLoader(search_roots=[examples_dir])
+        actors = loader.discover()
+        for actor in actors:
+            print(f"actor-imported:{actor.name}")
+        print(f"all-examples-ok:{len(actors)}")
+        return 0
+    except Exception as exc:
+        print(f"validate-all-fail: {exc}")
+        return 1
+
+
 def main() -> int:
     """Entry point called by Robot Framework ``Run Process``."""
     if len(sys.argv) < 2:
@@ -200,7 +223,8 @@ def main() -> int:
             "  count-examples <directory>\n"
             "  check-pattern <file> <pattern>\n"
             "  check-docs <doc_file>\n"
-            "  check-doc-patterns <doc_file>"
+            "  check-doc-patterns <doc_file>\n"
+            "  validate-all <directory>"
         )
         return 1
 
@@ -242,6 +266,12 @@ def main() -> int:
             return 1
         return check_doc_patterns(sys.argv[2])
 
+    if command == "validate-all":
+        if len(sys.argv) < 3:
+            print("Usage: validate-all <directory>")
+            return 1
+        return validate_all_examples(sys.argv[2])
+
     print(f"Unknown command: {command}")
     return 1