This pack's core engine, workflows, and SDLC step skills are original to
KeyValue Software Systems (see LICENSE, MIT).
The per-stack reference skills (skills/<lang>-patterns, -testing, framework guides)
and per-stack reviewer subagents (agents/<lang>-reviewer) are adapted from ECC —
https://github.com/affaan-m/ECC, MIT License, Copyright (c) 2026 Affaan Mustafa. Only
the frontmatter was normalised to this pack's contract (added tags: with a stack:<x>
token and allowed-tools); the instructional bodies are ECC's. These files carry no
in-file attribution — this file plus licenses/ECC-LICENSE are the record of origin.
The MIT license requires this notice be preserved. See licenses/ECC-LICENSE for the
full upstream license text.
| Stack | Skills | Agents |
|---|---|---|
| android | android-clean-architecture, compose-multiplatform-patterns |
— |
| angular | angular-developer |
— |
| db | clickhouse-io, database-migrations, mysql-patterns, postgres-patterns, prisma-patterns, redis-patterns |
database-reviewer |
| flutter | dart-flutter-patterns, flutter-dart-code-review |
flutter-reviewer |
| go | golang-patterns, golang-testing |
go-reviewer |
| java | java-coding-standards, jpa-patterns, quarkus-patterns, quarkus-security, quarkus-tdd, quarkus-verification, springboot-patterns, springboot-security, springboot-tdd, springboot-verification |
java-reviewer |
| kotlin | kotlin-coroutines-flows, kotlin-exposed-patterns, kotlin-ktor-patterns, kotlin-patterns, kotlin-testing |
kotlin-reviewer |
| node | nestjs-patterns, vite-patterns |
type-design-analyzer, typescript-reviewer |
| python | django-celery, django-patterns, django-security, django-tdd, django-verification, fastapi-patterns, python-patterns, python-testing, pytorch-patterns |
django-reviewer, fastapi-reviewer, python-reviewer |
| react | nextjs-turbopack, react-native-patterns, react-patterns, react-performance, react-testing |
react-reviewer |
| rust | rust-patterns, rust-testing |
rust-reviewer |
| vue | nuxt4-patterns, vue-patterns |
vue-reviewer |
Totals: 48 skills, 13 agents across 12 stacks. Regenerate/extend via scripts/import_ecc.py.