# Plugin System with DI, Signing, and Version Attributes

## Module
Concelier

## Status
VERIFIED

## Description
Plugin architecture using IDependencyInjectionRoutine and ServiceBinding attributes for dependency injection, with isolated AssemblyLoadContext loading. Cosign signature verification and StellaPluginVersion attributes are defined.

## Verification Summary
- **Run**: run-002 (deep QA)
- **Date**: 2026-02-13
- **Test project**: StellaOps.Concelier.Core.Tests (569 total, 567 passed, 2 pre-existing)
- **Feature-relevant tests**: 14 (JobPluginRegistrationExtensionsTests + ConnectorRegistrationServiceTests)

## Key Verified Behaviors
- Plugin discovery via DI: RegisterJobPluginRoutines scans assembly for IConnectorPlugin, registers PluginHostResult and PluginRoutineExecuted services
- Plugin adapter factory: FeedPluginAdapterFactory maps IConnectorPlugin to unified IPlugin + IFeedCapability via FeedPluginAdapter
- DI-based registration with metadata-driven schedule, rate policy, egress guard, lock key
- Default AuthRef derivation, batch registration, input validation
- Job definitions: correct Kind, Timeout, LeaseDuration, CronExpression

## Evidence
- `docs/qa/feature-checks/runs/concelier/plugin-system-with-di-signing-and-version-attributes/run-002/tier0-source-check.json`
- `docs/qa/feature-checks/runs/concelier/plugin-system-with-di-signing-and-version-attributes/run-002/tier1-code-review.json`
- `docs/qa/feature-checks/runs/concelier/plugin-system-with-di-signing-and-version-attributes/run-002/tier2-integration-check.json`