# The Hermes "grows-with-you" brain

The agent's reasoning is pluggable through `INFERENCE_BASE_URL` (see `server/model.py`). Point it at a
**NousResearch Hermes** model served OpenAI-compatible and the whole pipeline uses it — **no code
change**. Hermes is a tool-calling Llama/Qwen fine-tune, a good fit for the autonomous daemon.

## Serve Hermes locally (llama.cpp → "Llama Champion")

```bash
# Hermes 3 Llama 3.1 8B (Q4_K_M) runs comfortably on a Mac with Metal.
llama-server -m ~/models/Hermes-3-Llama-3.1-8B.Q4_K_M.gguf \
  --host 127.0.0.1 --port 8080 --ctx-size 8192 --jinja   # --jinja = tool-calling template
```

Point the backend at it:

```bash
export INFERENCE_BASE_URL="http://127.0.0.1:8080/v1"
export INFERENCE_MODEL="hermes"
export USE_STUB_EXTRACTOR=0
python app.py
```

`server/model.py` routes `complete_json` / `stream_complete_json` to the remote server when
`INFERENCE_BASE_URL` is set (`_remote_*`), still grammar-constraining the output to the ActionPlan
schema. (Ollama or vLLM also work — any OpenAI-compatible endpoint.)

## "Grows with you" — the memory (`server/memory.py`)

Durable facts/preferences personalize every extraction; they're injected into the prompt via
`recall()` (`server/agent.py::build_messages`) and shown/edited in the dashboard **Memory** tab.

- **Learns automatically:** recurring event attendees become `contact` facts (`observe_plan`).
- **You can teach it:** add facts in the Memory tab — `"Dana is the soccer coach"`,
  `"you decline Mondays"`, `"default location is Lincoln Elementary"`.
- **Hermes can update it itself:** set `HERMES_TOOLS=1` and the remote path advertises a `remember`
  tool (`server/tools.py`); the model calls it mid-run to save durable facts, then returns the
  ActionPlan. The tool-call loop is in `server/model.py::_remote_complete_json` (round-trip logic +
  tests in `server/tools.py` / `tests/test_tools.py`). Requires a tool-calling server (`--jinja`).
- Stored at `MEMORY_PATH` (set it to a real path like `~/.offgrid/agent_memory.json`, not `/tmp`).

Over time the model resolves nicknames, applies your preferences to conflicts, and needs fewer
clarifications — the "grows with you" behavior.

## Where it runs
The Hermes brain + memory live wherever the autonomous backend runs — the **Mac daemon**
(`scripts/setup_mac.sh`), an Android phone via Termux (`INFERENCE_BASE_URL` → a local `llama-server`),
or a cloud box (if you capture from email/Slack/Telegram instead of iMessage).