--- /dev/null
+# Investigation Report: Happy Monkey
+
+## Summary
+
+Happy Monkey is a display sans-serif font designed by Brenda Gallo, added to Google Fonts on 2012-03-14. The font has never been updated since its initial addition to the catalog. An upstream repository exists at `https://github.com/librefonts/happymonkey` (a legacy `librefonts` archive), but it contains only VFB (FontLab Studio) source files and TTX decompositions -- no modern gftools-builder compatible sources (.glyphs, .ufo, .designspace). There is no METADATA.pb source block currently, and no config.yaml is possible since the sources cannot be built with gftools-builder.
+
+## Key Findings
+
+| Field | Value |
+|------------------|-------|
+| Family Name | Happy Monkey |
+| Repository URL | https://github.com/librefonts/happymonkey |
+| Commit | `5e49a946fe2459a69afa0ea0dfd501280cb61183` |
+| Branch | master |
+| Config YAML | N/A (no gftools-builder compatible sources) |
+| Source Files | `src/HappyMonkey-Regular-TTF.vfb`, `src/HappyMonkey-Regular-OTF.vfb` (FontLab format) |
+| Status | **no_config_possible** |
+| Confidence | HIGH |
+
+## Investigation Details
+
+### Onboarding History in google/fonts
+
+Happy Monkey has a very short history in google/fonts:
+
+1. **Commit 90abd17b4** (2015-03-07, Dave Crossland):
+ - "Initial commit" -- this is the bulk initial import of all fonts into the current google/fonts repository
+ - The font was originally added to Google Fonts on 2012-03-14 (per METADATA.pb `date_added`)
+ - The TTF file has never been modified since this initial commit
+
+2. **Subsequent commits** all touch only metadata files, not the font binary:
+ - `8ccda7bf7` -- Fix fsType (no change to HappyMonkey files)
+ - `49fbebd3d` -- chmod -x (only changed FONTLOG.txt permissions)
+ - `480630de3` -- METADATA.pb textproto update
+ - `883939708` -- Remove METADATA.json
+ - Various language/metadata updates
+
+### No Source Block in METADATA.pb
+
+The current METADATA.pb has no `source { }` block at all. It only contains basic font metadata (name, designer, license, category, date_added, fonts, subsets).
+
+### Upstream Repository Analysis
+
+- **Repository**: `librefonts/happymonkey` (cached at `fontc_crater_cache/librefonts/happymonkey`)
+- **Current HEAD**: `5e49a94` (2014-10-17) -- "update .travis.yml"
+- **Shallow clone**: Yes (only 1 commit visible)
+- **Remote**: `https://github.com/librefonts/happymonkey`
+
+The repository is a legacy `librefonts` archive. The `librefonts` organization on GitHub was used to host decomposed font sources for fonts in the Google Fonts catalog, typically using Travis CI for automated builds.
+
+### Source Files
+
+The repository contains:
+- `src/HappyMonkey-Regular-TTF.vfb` -- FontLab Studio 5 binary source (TTF flavor)
+- `src/HappyMonkey-Regular-OTF.vfb` -- FontLab Studio 5 binary source (OTF flavor)
+- Multiple `.ttx` decomposition files of the compiled font (TTX XML format)
+- `.travis.yml` -- Travis CI config using legacy `fontbakery-build.py` toolchain
+- `FONTLOG.txt`, `OFL.txt`, `METADATA.json` (legacy format)
+
+There are NO `.glyphs`, `.ufo`, or `.designspace` files. VFB is a proprietary FontLab format that cannot be processed by gftools-builder. The TTX files are decompositions of the compiled binary, not editable design sources.
+
+### Designer Information
+
+- **Designer**: Brenda Gallo (gbrenda1987@gmail.com)
+- **Spacing/Kerning**: Igino Marini (ikern.com)
+- **Co-designer**: Gustavo Dipre (mentioned in DESCRIPTION.en_us.html)
+- **Font version**: 1.001 (from 2012, never updated)
+
+### No Config YAML Possible
+
+Since the upstream repository has only VFB source files, which are:
+1. Proprietary binary format (FontLab Studio 5)
+2. Not supported by gftools-builder
+3. Not supported by fontc
+
+No `config.yaml` can be created for this font. The sources would need to be converted to a modern format (.glyphs, .ufo, or .designspace) before a gftools-builder config could be written.
+
+## Conclusion
+
+Happy Monkey has an upstream repository at `librefonts/happymonkey`, but it is a legacy archive containing only VFB and TTX files. No gftools-builder compatible sources exist, making a config.yaml impossible. The font binary has never been updated since its initial addition to Google Fonts in 2012.
+
+### Recommended METADATA.pb Source Block
+
+A minimal source block can document the repository URL and commit, even without a config_yaml:
+
+```
+source {
+ repository_url: "https://github.com/librefonts/happymonkey"
+ commit: "5e49a946fe2459a69afa0ea0dfd501280cb61183"
+ files {
+ source_file: "OFL.txt"
+ dest_file: "OFL.txt"
+ }
+ branch: "master"
+}
+```
+
+**Status**: no_config_possible (VFB-only sources, not compatible with gftools-builder)
+**Confidence**: HIGH