fn_registry/dev/issues/completed/0109a-skill-tree-shell-parsers.md

id, title, status, type, domain, scope, priority, depends, blocks, related, created, updated, tags

id	title	status	type	domain	scope	priority	depends	blocks	related	created	updated	tags
0109a	skill_tree app shell + parsers issues/flows	completado	feature	meta cpp-stack	app-scoped	media		0109b	0109	2026-05-17	2026-05-17	skill-tree cpp imgui parsers

0109a — skill_tree shell + parsers

Primer slice del epic 0109. Foco: app C++ scaffoldada, compilando, leyendo los 79 issues + 7 flows y reportando conteos en stdout. Sin render del grafo todavia — solo plumbing.

Tareas

1. Scaffolder ./fn run init_cpp_app skill_tree --domain tools --desc "..." --tags "dashboard,meta".
2. Editar app.md generado: trio icon (tree-structure, #c026d3), e2e_checks, uses_functions iniciales.
3. Generar appicon.ico via generate_app_icon_py_infra.
4. Crear funcion parse_md_frontmatter_cpp_core (delegar a fn-constructor):
   • Input: std::string content (texto del .md completo).
   • Output: MdFrontmatter struct con std::unordered_map<std::string, YamlValue> y std::string body.
   • YamlValue = variant {string, list<string>, null}. Subset YAML suficiente para issues actuales.
   • Pure. Test golden: parsea los 79 issues + 7 flows sin error.
5. En main.cpp (scaffold inicial): al arrancar, scan dev/issues/*.md + dev/flows/*.md, parse cada uno, contar por status/domain. Log a stdout:

   skill_tree v0.1.0
   issues: 79 (28 pendiente, 3 in-progress, 72 completado, ...)
   flows:  7 (5 pending, 2 completed)
   parse errors: 0
   

6. e2e_checks build + self-test warning.
7. Compilar + deploy Windows via redeploy_cpp_app_windows.
8. Refrescar hub via refresh_app_hub.

DoD

• App existe en apps/skill_tree/ con .git/ apuntando a dataforge/skill_tree.
• app.md con trio completo + e2e_checks + uses_functions declarados.
• appicon.ico generado.
• fn index exitoso, mcp__registry__fn_show id="skill_tree" muestra metadata.
• parse_md_frontmatter_cpp_core indexado en registry.
• cmake --build cpp/build --target skill_tree exitoso.
• ./skill_tree (Linux) o skill_tree.exe (Windows) imprime conteos correctos.
• Tarjeta visible en app_hub_launcher.
• fn doctor cpp-apps limpio.