fraqtal/agentic-dev-template
1
0
Fork 0
Code Issues Pull Requests Actions 2 Packages Projects Releases Wiki Activity
Files
c77daee2b596fe7c51645093c4f0030d2dfb3e29
agentic-dev-template/docs/decisions/adr-002-di-framework.md

1.1 KiB
Raw Blame History

ADR-002: InversifyJS for Dependency Injection

Status: Accepted

Context

Need DI for clean architecture. Options: InversifyJS, tsyringe, manual composition root.

Decision

InversifyJS with symbol-based resolution + targeted agent documentation.

Rationale

  • Scales to 20+ services with automatic dependency chain resolution
  • Built-in singleton/transient/request scopes
  • Middleware support for logging/tracing (Sentry integration)
  • Matches the reference implementation by Lazar Nikolov
  • Agent readability gap (4/10 → 7/10) mitigated by resolution tables and step-by-step recipes in di/AGENTS.md
  • Familiar to developers from Java/C# backgrounds

Trade-offs

  • Requires reflect-metadata + decorator config in tsconfig
  • Symbol indirection harder to trace than plain functions
  • Extra dependency (inversify + reflect-metadata)

Update (2026-05-04)

The vertical-feature refactor preserved InversifyJS but moved from a single shared container in packages/core/src/di/ to per-feature containers in each feature package (packages/<feature>/src/di/container.ts). See ADR-008.