Build HF Docker Space text-adventure TUI (React + FastAPI + Llama 3)
Session from build-small-agent-trace on Hugging Face by drdavidtang · MIT · condensed by Coders Talk
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24msession
0interventions
GOAL
Build a self-contained Hugging Face Docker Space app: a retro terminal UI for a storyboarding text adventure, using React/xterm.js frontend and FastAPI backend calling HF Inference APIs for narrative and ASCII art generation.
- +0Prompt · +0Build a full HF Docker Space text-adventure app: React/xterm.js TUI frontend, FastAPI backend using Llama 3 for narrative and FLUX/Pillow for ASCII art, stateless /api/chat endpoint
- +0mAgent did · +0mInstalled frontend npm deps and ran build; hit a tsconfig TS5096 error and fixed it inline before the build passed
- +1mAgent did · +1mSet up backend: created .gitignore/.dockerignore, built a local venv, installed pinned Python deps, then built the full multi-stage Docker image
- +2mFail · +2mIn-container smoke test crashed: starlette TestClient required httpx, which wasn't installed in the image
- +7mAgent did · +7mFixed the dependency gap, reran the smoke test until API routes and static bundle passed, then delivered the full app summary (FastAPI chat endpoint, Llama 3 narrative, FLUX/Pillow ASCII art, React TUI, Docker build)
- +8mAgent did · +8mBumped runtime to Python 3.14 (Pillow 12.0.0, Pydantic 2.12.5), rebuilt the Docker image and verified the new runtime in-container
- +18mPrompt · +18mpush code to [email protected]:spaces/build-small-hackathon/storyboard-tui
- +18mFail · +18mgit push over SSH failed: host key verification failed for hf.co
- +19mAgent did · +19mAdded hf.co's SSH host key, diagnosed a subsequent auth rejection, located the right local SSH identity, merged the Space's initial history with the app commits, then reran the build/verify checks
- +24mOutcome · +24mPushed the merged main branch (verified frontend build, backend compile, and git diff checks) to the Hugging Face Space [email protected]:spaces/build-small-hackathon/storyboard-tui
VERDICT
I'd open with the Python version pinned upfront and the deployment target/SSH access sorted before asking for a push — the 3.14 bump and the SSH host-key/auth dance both cost real time that a clearer first prompt would've avoided. The fix that actually mattered was letting the agent self-diagnose the httpx and SSH auth failures in-place rather than me stepping in; it resolved both without any correction from me.