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-kotlingit 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-kotlin)<a href="https://agentmods.dev/skills/cratis/ai/cratis-chronicle-client-kotlin"><img src="https://agentmods.dev/badge/skills/cratis/ai/cratis-chronicle-client-kotlin/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/cratis/ai/cratis-chronicle-client-kotlin"><img src="https://agentmods.dev/badge/skills/cratis/ai/cratis-chronicle-client-kotlin.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00121 | $0.06182 |
| Opus 5 | $0.00060 | $0.03091 |
| Sonnet 5 | $0.00024 | $0.01236 |
| Haiku 4.5 | $0.00012 | $0.00618 |
Grade A, and why
cratis-chronicle-client-kotlin 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 2d 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 — 499 lines — stays where its author put it; the contents beside it link to each section on GitHub.
The Chronicle client for Kotlin and Java
io.cratis:chronicle is a standalone client SDK. Your application is an
ordinary JVM application that happens to talk to a Chronicle server over gRPC.
There is no framework to inherit from and no application architecture imposed:
you construct a client, ask it for an event store, and append or observe.
Verified product sources
This skill is verified against this exact source:
| Artifact | Version | Verified from |
|---|---|---|
io.cratis:chronicle |
4.0.0 |
Chronicle.Kotlin at tag v4.0.0 (commit 63ff629) |
io.cratis:chronicle-spring-boot-starter |
4.0.0 |
same tag, Integrations/SpringBoot |
io.cratis:chronicle-testing |
4.0.0 |
same tag, Testing |
io.cratis:chronicle-contracts |
16.44.1 |
Source/build.gradle.kts:11 |
All three artifacts are published to Maven Central under io.cratis
(Source/build.gradle.kts:54, Testing/build.gradle.kts:32,
Integrations/SpringBoot/build.gradle.kts:48). The JVM toolchain is 17
(Source/build.gradle.kts:43).
Do not copy a version number out of the repository's README or docs. At
v4.0.0the README still says2.1.1(README.md:186) and the documentation says2.1.2(Documentation/get-started/index.md:24). The version comes from a Gradle property injected at release time —Source/build.gradle.kts:8readsproviders.gradleProperty("version")and defaults to0.0.0-SNAPSHOT— so the checked-in source never carries the real number. Take it from Maven Central.
The client and the kernel version independently. Client
4.0.0is built againstchronicle-contracts16.44.1; the Chronicle server has since moved to a17.xline. Confirm the client/server pair you intend to run is supported before relying on it — do not infer compatibility from the fact that both are "latest".
Two ways in — pick one
| You are building | Use | Artifact |
|---|---|---|
| A plain Kotlin/Java application, a CLI, a worker | ChronicleClient directly |
io.cratis:chronicle |
| A Spring Boot application | the starter, and inject the beans | io.cratis:chronicle-spring-boot-starter |
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.
- 2d ago First seen · 499 lines · 121 tokens per session scan A 1e7da6f2d878
cratis-chronicle-client-kotlin is a skill published in the GitHub repository Cratis/AI (2 stars, last pushed today), licensed MIT. It adds 121 tokens to every session and 6,182 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.
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