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joduor/
adaptive-model

Name: adaptive-model
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adaptive-model

Multi-adapter language model with two chat surfaces:

Surface	Mechanism	UI
Path A — Custom GPT Action	OpenAPI schema → `/generate`	Markdown fallback
Path B — MCP Apps	MCP tool → `structuredContent`	Real interactive iframe widget

Both surfaces share the same Hugging Face model backend and heuristic adapter router.

Architecture

Chat turn
    │
    ▼
lib/router.py  ──  heuristic or explicit mode
    │
    ▼
HF Inference Endpoint  (handler.py)
    │  base model + 3 LoRA adapters (support / analytics / form)
    │  emits:  <ui>{json}</ui>  then prose
    │
    ├─── Path A ── gateway/app.py (FastAPI)
    │              renders ui_spec → markdown
    │              served via openapi-schema.yaml  →  Custom GPT Action
    │
    └─── Path B ── mcp-server/server.py (FastMCP)
                   returns structuredContent
                   widget/adaptive.html renders in iframe

Quick start

bash

cp .env.example .env
# fill in HF_ENDPOINT_URL, HF_TOKEN, adapter repo IDs

Path A — Custom GPT gateway

bash

pip install -r gateway/requirements.txt
python -m gateway.app          # runs on :8000

Paste gateway/openapi-schema.yaml into your GPT's Actions editor. Set the server URL to your deployed gateway (ngrok / Railway / Fly.io).

Path B — MCP server

bash

pip install -r mcp-server/requirements.txt

# stdio (local MCP client, e.g. Claude Desktop)
python mcp-server/server.py

# SSE (remote clients, e.g. ChatGPT plugin host)
python mcp-server/server.py --http      # listens on :3100

Add to your MCP client config:

json

{
  "mcpServers": {
    "adaptive-model": {
      "command": "python",
      "args": ["mcp-server/server.py"]
    }
  }
}

Hugging Face endpoint

Push hf-endpoint/handler.py to your model repo on the Hub.
Create an Inference Endpoint pointing at that repo.
- Hardware: minimum A10G (24 GB) for a 7B base + 3 LoRA adapters in bf16.
- Set env vars: BASE_MODEL, ADAPTER_SUPPORT, ADAPTER_ANALYTICS, ADAPTER_FORM.
Copy the endpoint URL into .env as HF_ENDPOINT_URL.

Adapter training

Adapters must be fine-tuned to emit <ui>{...}</ui> followed by prose. Generate synthetic seed data to bootstrap each adapter:

bash

pip install -r hf-endpoint/requirements.txt

python training/generate_examples.py --all --n 200 -o data/
# writes data/support.jsonl  data/analytics.jsonl  data/form.jsonl

Then fine-tune with your preferred PEFT trainer (TRL SFTTrainer works well):

python

from trl import SFTTrainer, SFTConfig
from peft import LoraConfig

lora_cfg = LoraConfig(r=16, lora_alpha=32, target_modules=["q_proj","v_proj"])
trainer  = SFTTrainer(
    model=base_model,
    args=SFTConfig(output_dir="./adapter-support", num_train_epochs=3),
    train_dataset=support_dataset,
    peft_config=lora_cfg,
)
trainer.train()
trainer.push_to_hub("your-org/adapter-support")

ui_spec contract

The model emits one of these component shapes:

jsonc

// form
{"component":"form","props":{"title":"...","fields":[{"name":"x","label":"X","type":"text","required":true}],"submitLabel":"Send"}}

// chart
{"component":"chart","props":{"title":"...","type":"bar","data":{"labels":["Jan","Feb"],"datasets":[{"label":"Revenue","data":[400,600]}]}}}

// card
{"component":"card","props":{"title":"...","body":"...","items":[{"label":"Status","value":"OK"}]}}

// table
{"component":"table","props":{"columns":["Name","Value"],"rows":[["Alpha",1],["Beta",2]]}}

The widget renders any of these interactively. Path A degrades each to markdown via lib/markdown_renderer.py.

Routing

The heuristic router (lib/router.py) scores keywords in the last user turn:

Adapter	Triggers
`support`	error, help, issue, bug, broken, fix …
`analytics`	chart, graph, trend, metric, dashboard …
`form`	form, fill, submit, register, sign up …

Pass mode explicitly to override. Default is support.

joduor/adaptive-model

adaptive-model

Architecture

Quick start

Path A — Custom GPT gateway

Path B — MCP server

Hugging Face endpoint

Adapter training

ui_spec contract

Routing

joduor/
adaptive-model