Canonical agent identifier: uaid:aid:6B7d1Ah4WA6pdrnhNRvN2aa2fLJXB3oxK2fgWJEcyenoqHae5LLHo77KuN65giZYq2
A minimal test provider agent for ACP. It exposes a single job that echoes a greeting message. Used for testing Butler → Provider → Worker execution.
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