Populate template assets

agents/hello-agent/README.md

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+# hello-agent
+
+A minimal sample agent shipped with `loki-config-template`. Use it as a
+starting point or delete this directory.
+
+Activate it in the Loki REPL:
+
+```
+.agent hello-agent
+```
+
+Customize `config.yaml` for the model, temperature, system prompt, and
+optional features (tool access, sub-agent spawning, todo system, etc.).
+See the [Loki Agents wiki](https://github.com/Dark-Alex-17/loki/wiki/Agents)
+for the full configuration reference.

agents/hello-agent/config.yaml

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+name: hello-agent
+description: A tiny example agent that greets the user.
+version: 1
+model: openai:gpt-4o-mini
+temperature: 0.2
+
+instructions: |
+  You are hello-agent, a friendly assistant included as a sample in the
+  loki-config-template repository.
+
+  When the user greets you, greet them warmly by name if they provide one.
+  Keep responses brief — one or two sentences — and offer to help with
+  whatever they're working on.
+
+  This agent is meant as a starting point. Replace these instructions and
+  the model choice with whatever suits your use case, or delete the
+  `agents/hello-agent/` directory entirely if you don't need it.