init: seed framework reference content from agent-runtimes main repo

task-templates/output-validator.yaml

@@ -0,0 +1,10 @@
+name: output-validator
+description: >
+  Validates that the agent produced a file at the specified path with at least
+  min_change_kb of changes. Use as the final node in workflows that require
+  verifiable output (P2).
+requires_tags:
+  - project-repo
+required_params:
+  - output_path
+  - min_change_kb