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 Cratis/AI --skill cratis-chronicle-client-elixirgit clone --depth 1 https://github.com/Cratis/AIWrote 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/cratis/ai/cratis-chronicle-client-elixir)<a href="https://agentmods.dev/skills/cratis/ai/cratis-chronicle-client-elixir"><img src="https://agentmods.dev/badge/skills/cratis/ai/cratis-chronicle-client-elixir.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00112 | $0.05045 |
| Opus 5 | $0.00056 | $0.02523 |
| Sonnet 5 | $0.00022 | $0.01009 |
| Haiku 4.5 | $0.00011 | $0.00505 |
Grade A, and why
cratis-chronicle-client-elixir 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 today.
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 — 430 lines — stays where its author put it; the contents beside it link to each section on GitHub.
The Chronicle client for Elixir
cratis_chronicle is a standalone client SDK. It is a library, not a
framework: it starts no supervision tree of its own, you add Chronicle.Client
to yours, and everything after that is ordinary OTP.
Verified product sources
This skill is verified against Cratis/Chronicle.Elixir at tag v2.2.0,
which is the version actually published on Hex.
| Fact | Value | Source |
|---|---|---|
| OTP app / Hex package | :cratis_chronicle |
Source/chronicle/mix.exs:14 |
| Published version | 2.2.0 |
hex.pm |
| Elixir requirement | ~> 1.14 |
Source/chronicle/mix.exs:16 |
| Contracts dependency | cratis_chronicle_contracts resolved to 16.13.4 |
Source/chronicle/mix.lock |
The
v2.3.0git tag was never published to Hex.mix deps.getcannot fetch it. Anything introduced there — notably theChronicle.Conceptmacro, which does not exist atv2.2.0— must not be documented as available.
The repository's
VERSIONfile says0.0.5and is a build-time placeholder overwritten by the publish workflow. Never quote it.
Do not copy from the repository's root
README.md. Atv2.2.0it uses module names that do not exist —use Chronicle.EventType,use Chronicle.ReadModel,use Chronicle.Reactor,use Chronicle.Reducer,use Chronicle.Seeder(README.md:9-13,:49,:54). The real modules are namespaced:Chronicle.Events.EventType,Chronicle.ReadModels.ReadModel,Chronicle.Reactors.Reactor,Chronicle.Reducers.Reducer,Chronicle.Seeding.Seeder. Copy fromDocumentation/client-snippets/instead — those are CI-validated and correct at every version.
Documentation/get-started.md:12pins{:cratis_chronicle, "~> 0.1"}, which does not match the published2.2.0. Use a2.xrequirement.
Adding it
# mix.exs
defp deps do
[
{:cratis_chronicle, "~> 2.2"}
]
end
The library declares extra_applications: [:logger, :inets, :ssl] and no
mod: (Source/chronicle/mix.exs), so nothing starts on its own. :inets and
:ssl back the least-connections load balancer's HTTP probes.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- today First seen · 430 lines · 112 tokens per session scan A dc97323a5070
cratis-chronicle-client-elixir is a skill published in the GitHub repository Cratis/AI (2 stars, last pushed today), licensed MIT. It adds 112 tokens to every session and 5,045 once invoked, about $0.0006 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 2026-09-06.
Other skills, from other repositories
worker-services
Build long-running .NET background services with BackgroundService, Generic Host, graceful shutdown, configuration, logging, and deployment patterns suited to workers and daemons. USE FOR: background services; scheduled workers; hosted services; worker extraction; graceful shutdown, health checks, and service hosting…
aspnet-core
Build, debug, modernize, or review ASP.NET Core applications with correct hosting, middleware, security, configuration, logging, and deployment patterns on current .NET. USE FOR: working on ASP.NET Core apps, services, or middleware; changing auth, routing, configuration, hosting, or deployment behavior; deciding…
minimal-apis
Design and implement Minimal APIs in ASP.NET Core using handler-first endpoints, route groups, filters, and lightweight composition suited to modern .NET services. USE FOR: building new HTTP APIs in ASP.NET Core; creating lightweight microservices; choosing between Minimal APIs and controllers. DO NOT USE FOR…
web-api
Build or maintain controller-based ASP.NET Core APIs when the project needs controller conventions, advanced model binding, validation extensions, OData, JsonPatch, or existing API patterns. USE FOR: working on controller-based APIs in ASP.NET Core; needing controller-specific extensibility or conventions; migrating…
managedcode-communication
Use ManagedCode.Communication when a .NET application needs explicit result objects, structured errors, and predictable service or API boundaries instead of exception-driven control flow. USE FOR: integrating ManagedCode.Communication into services or APIs; replacing exception-driven result handling with explicit…
grpc
Build or review gRPC services and clients in .NET. USE FOR: ASP.NET Core gRPC, protobuf contracts, unary or streaming RPC, gRPC client factory, interceptors, deadlines, cancellation, channel reuse, backend service integration. DO NOT USE FOR: broad browser-facing APIs without gRPC-Web tradeoff review, SignalR realtime…