Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add CrestApps/CrestApps.AgentSkills --skill crestapps-core-resiliencegit clone --depth 1 https://github.com/CrestApps/CrestApps.AgentSkillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/crestapps/crestapps.agentskills/crestapps-core-resilience)<a href="https://agentmods.dev/skills/crestapps/crestapps.agentskills/crestapps-core-resilience"><img src="https://agentmods.dev/badge/skills/crestapps/crestapps.agentskills/crestapps-core-resilience/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/crestapps/crestapps.agentskills/crestapps-core-resilience"><img src="https://agentmods.dev/badge/skills/crestapps/crestapps.agentskills/crestapps-core-resilience.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00033 | $0.01306 |
| Opus 5 | $0.00016 | $0.00653 |
| Sonnet 5 | $0.00007 | $0.00261 |
| Haiku 4.5 | $0.00003 | $0.00131 |
Grade A, and why
crestapps-core-resilience scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 144 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CrestApps.Core AI Resilience - Prompt Templates
Add Resilience to AI Clients
You are a CrestApps.Core expert. Generate code and guidance for adding builder-based resilience middleware to Microsoft.Extensions.AI clients using the CrestApps.Core.AI.Resilience package.
Guidelines
-
CrestApps.Core.AI.Resilienceis a standalone package. Reference it explicitly in the consuming project.<PackageReference Include="CrestApps.Core.AI.Resilience" Version="*" />It depends on
Microsoft.Extensions.AIandMicrosoft.Extensions.Resilience. -
The extensions live in namespace
CrestApps.Core.AI.Resilienceand apply to the corresponding Microsoft.Extensions.AI builders:ChatClientBuilder,EmbeddingGeneratorBuilder<TInput, TEmbedding>,ImageGeneratorBuilder,SpeechToTextClientBuilder, andTextToSpeechClientBuilder. -
Framework-owned completion and utility chat paths in
CrestApps.Corealready use the default retry policy internally. Use this package for host-created clients or when an application wants to opt in explicitly. -
Two ways to apply resilience:
- Resolve a chat client through
IAIClientFactory.CreateChatClientAsync(deployment, configurePipeline). The factory passes aChatClientBuilderto the callback and owns the final build. - Convert a raw client to its builder with
.AsBuilder(), applyUseDefaultResilience()orUseResilience(...), then finish withBuild(serviceProvider).
- Resolve a chat client through
-
When you build manually, always pass the active
IServiceProvidertoBuild(serviceProvider). Never callBuild()orBuild(null)— downstream middleware may need DI to resolve tools and runtime components.
Default Policy
UseDefaultResilience() is intentionally narrow. It retries provider rate-limit failures such as HTTP 429 Too Many Requests. Tune it with AIChatClientRetryOptions.
| Setting | Default |
|---|---|
MaxRateLimitRetries |
5 |
RateLimitRetryDelay |
1 second |
BackoffType |
DelayBackoffType.Exponential |
UseJitter |
true |
MaxRetryDelay |
32 seconds |
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 144 lines · 33 tokens per session scan A b7681f3e8edf
crestapps-core-resilience is a skill published in the GitHub repository CrestApps/CrestApps.AgentSkills (13 stars, last pushed 11d ago), licensed MIT. It adds 33 tokens to every session and 1,306 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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