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docs/features/checked/releaseorchestrator/aws-ecs-deployment-agent.md

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+# AWS ECS Deployment Agent
+
+## Module
+ReleaseOrchestrator
+
+## Status
+VERIFIED
+
+## Description
+ECS agent capability for AWS Elastic Container Service deployments: service create/update/delete, task execution, task definition registration, service scaling, deployment health monitoring, and CloudWatch log streaming. Supports Fargate and EC2 launch types.
+
+## Implementation Details
+- **Modules**: `src/ReleaseOrchestrator/__Agents/StellaOps.Agent.Ecs/`
+- **Key Classes**:
+  - `EcsCapability` (`src/ReleaseOrchestrator/__Agents/StellaOps.Agent.Ecs/EcsCapability.cs`) - `IAgentCapability` implementation for ECS deployments
+  - `EcsDeployServiceTask` (`src/ReleaseOrchestrator/__Agents/StellaOps.Agent.Ecs/Tasks/EcsDeployServiceTask.cs`) - deploys/updates ECS services
+  - `EcsRegisterTaskDefinitionTask` (`src/ReleaseOrchestrator/__Agents/StellaOps.Agent.Ecs/Tasks/EcsRegisterTaskDefinitionTask.cs`) - registers ECS task definitions
+  - `EcsScaleServiceTask` (`src/ReleaseOrchestrator/__Agents/StellaOps.Agent.Ecs/Tasks/EcsScaleServiceTask.cs`) - scales ECS services
+  - `EcsHealthCheckTask` (`src/ReleaseOrchestrator/__Agents/StellaOps.Agent.Ecs/Tasks/EcsHealthCheckTask.cs`) - deployment health monitoring
+  - `EcsRunTaskTask` (`src/ReleaseOrchestrator/__Agents/StellaOps.Agent.Ecs/Tasks/EcsRunTaskTask.cs`) - runs one-off ECS tasks
+  - `EcsStopTaskTask` (`src/ReleaseOrchestrator/__Agents/StellaOps.Agent.Ecs/Tasks/EcsStopTaskTask.cs`) - stops ECS tasks
+  - `EcsDescribeServiceTask` (`src/ReleaseOrchestrator/__Agents/StellaOps.Agent.Ecs/Tasks/EcsDescribeServiceTask.cs`) - describes ECS service status
+  - `CloudWatchLogStreamer` (`src/ReleaseOrchestrator/__Agents/StellaOps.Agent.Ecs/CloudWatchLogStreamer.cs`) - streams CloudWatch logs to orchestrator
+- **Interfaces**: `IEcsTask`, `IAgentCapability`
+- **Source**: SPRINT_20260110_108_006_AGENTS_ecs.md
+
+## E2E Test Plan
+- [ ] Register an ECS task definition via `EcsRegisterTaskDefinitionTask` and verify it is created in AWS
+- [ ] Deploy an ECS service via `EcsDeployServiceTask` and verify the service is running
+- [ ] Scale the service via `EcsScaleServiceTask` and verify desired count changes
+- [ ] Verify health check: `EcsHealthCheckTask` reports service health status
+- [ ] Verify CloudWatch log streaming: deployment logs are streamed to the orchestrator
+
+
+## Verification
+- **Verified**: 2026-02-13T21:00:00Z
+- **Method**: Tier 2d integration tests
+- **Result**: PASS