Individual skill

crestapps-core-resilience

Skill for retry and resilience middleware on Microsoft.Extensions.AI clients in CrestApps.Core 2.0 with the CrestApps.Core.AI.Resilience package. Covers UseDefaultResilience rate-limit retries and AIChatClientRetryOptions, fully custom Polly pipelines with UseResilience, applying them through IAIClientFactory pipeline callbacks or AsBuilder plus Build(serviceProvider) on chat, embedding, image, speech-to-text and text-to-speech builders, ordering with UseUsageLabels and UseModelParameters, AIProviderErrorHelper rate-limit and not-found detection, streaming retry limits, and which framework paths already retry. Use it when adding retries to host-created AI clients or troubleshooting HTTP 429 throttling.

src/CrestApps.AgentSkills/crestapps-core/crestapps-core-resilience/SKILL.md

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Oct 21, 2026
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# CrestApps.Core AI Resilience

Builder-based retry middleware for Microsoft.Extensions.AI clients, from the standalone `CrestApps.Core.AI.Resilience` package.

## Guidelines

- `CrestApps.Core.AI.Resilience` is a standalone package. Reference it explicitly in the consuming project.

  ```xml
  <PackageReference Include="CrestApps.Core.AI.Resilience" Version="*" />
  ```

  It depends on `Microsoft.Extensions.AI` and `Microsoft.Extensions.Resilience`.
- The extensions live in namespace `CrestApps.Core.AI.Resilience` and apply to the corresponding Microsoft.Extensions.AI builders: `ChatClientBuilder`, `EmbeddingGeneratorBuilder<TInput, TEmbedding>`, `ImageGeneratorBuilder`, `SpeechToTextClientBuilder`, and `TextToSpeechClientBuilder`.