# Session Status — 2026-06-02

## What Was Fixed This Session

### ✅ 1. MCP Core Space — CONFIG_ERROR → RUNNING
- **Problem:** Missing YAML frontmatter in README → "Missing configuration in README" build error
- **Fix 1:** Added `---` YAML block with `sdk: gradio`, `sdk_version: 6.14.0`, title/emoji/colors
- **Fix 2:** Corrected `sdk_version` from `5.49.1` (mismatched `requirements.txt`'s `gradio>=6.14.0`) to `6.14.0`
- **Status:** RUNNING as of this session
- **Note:** FastAPI webhook routes (`/webhook/telegram`, `/webhook/slack`) still won't serve under `sdk: gradio`. Needs `gr.mount_gradio_app` or docker SDK for dual HTTP + Gradio.

### ✅ 2. Darwin Space — Module-level OOM → PR Fix Pending
- **Problem:** 67GB model loaded at module level (before `@spaces.GPU`) → CPU OOM crash → HTTP 500
- **Fix:** PR #4 created with lazy `_load()` inside `@spaces.GPU(duration=300, size="large")` + `_model_cache` to avoid reload per call
- **URL:** https://huggingface.co/spaces/build-small-hackathon/Darwin-35B-A3B-Opus/discussions/4
- **Status:** Needs org admin to merge (specimba has no write permission on `build-small-hackathon`)

### ✅ 3. Lab Space — Confirmed RUNNING on cpu-basic
- **Status:** RUNNING, clean build, valid YAML frontmatter
- **Limitation:** No ZeroGPU (`zeroGPU: null`) — model load/inference on CPU is too slow for real use
- **Needs:** PRO subscription on personal account OR move Space to `build-small-hackathon` org

## What We Learned (Corrected from Prior Handoff)

| Prior Claim | Actual State |
|-------------|-------------|
| Darwin PRs #1/#2/#3 "pending" | **ALL MERGED** as of last session |
| Darwin "transformers-only, works" | **Returns HTTP 500** — module-level model load OOMs CPU |
| MCP Core "just needs frontmatter" | **Also needs sdk_version match with requirements.txt** |
| Lab on ZeroGPU | **cpu-basic only** — ZeroGPU requires PRO or org plan |
| Dataset `nexus-os-v2` has data | **README-only** — 66 files, zero parquet/jsonl/arrow/csv |

## Verified Bucket
- `specimba/nexus-storage`: **2.6 TB, 898 files**, accessible, multi-region CDN
- Naming conflict: lab footer says `nexus-vap-bucket`, actual bucket is `nexus-storage`

## Next Steps (requires user action)

1. **Merge Darwin PR #4** — org owner of `build-small-hackathon` must merge: https://huggingface.co/spaces/build-small-hackathon/Darwin-35B-A3B-Opus/discussions/4
2. **Enable ZeroGPU on lab** — either: (a) subscribe to HF PRO for `specimba`, or (b) duplicate `specimba/nexus-os-lab` under `build-small-hackathon` org
3. **Populate dataset** — add real data files to `specimba/nexus-os-v2` or reclassify as doc repo
4. **Unify bucket naming** — pick one name and update all references
5. **MCP Core webhooks** — fix FastAPI route serving under Gradio SDK