-# M PLUS Rounded 1c — Source Investigation
+# M PLUS Rounded 1c — Source Repository Investigation
**Model**: Claude Opus 4.6
## Source Repository
-- **URL**: No public repository found
-- **Commit**: N/A
-## Findings
-No source block was found in METADATA.pb. The font was part of the Rounded M+ Project but had no source repository or commit information recorded.
+| Field | Value |
+|-------|-------|
+| Repository | https://github.com/coz-m/MPLUS_FONTS |
+| Commit | `eb604901d6f04b6f7f2a84b0378c58df84a9dba6` |
+| Confidence | Low |
-## Status
-- **Category**: NO_SOURCE
+## Source Types
+
+The repository contains Glyphs and Designspace sources:
+- `.glyphs` files — Glyphs source format
+- `.designspace` files — designspace/UFO format
+
+## Build Compatibility
+
+No `config.yaml` is present in the upstream repository. The sources use modern formats, but it is unclear whether the Rounded variant is included in this repository.
+
+## Investigation Notes
+
+The coz-m/MPLUS_FONTS repository is the new M PLUS project by Coji Morishita. M PLUS Rounded 1c is an older variant of the M PLUS family with rounded terminals. The confidence is low because the new MPLUS_FONTS repository focuses on the redesigned M PLUS 1 and M PLUS 2 families, and it is unclear whether it covers the legacy Rounded 1c variant. Further investigation is needed to determine if the Rounded variant sources exist at this commit.
+
+The binary in google/fonts was recently re-added (2025-04-10, "Missing in GH" fix).
+
+A source block was added to METADATA.pb pointing to this repository and commit.
+
+## Confidence: Low
+
+The repository may not cover the Rounded variant; needs further investigation to confirm.