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 agentmods add skills/adambien/airails/aws-cdknpx skills add AdamBien/airails --skill aws-cdkgit clone --depth 1 https://github.com/AdamBien/airailsWrote 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/adambien/airails/aws-cdk)<a href="https://agentmods.dev/skills/adambien/airails/aws-cdk"><img src="https://agentmods.dev/badge/skills/adambien/airails/aws-cdk.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 | $0.00000 | $0.03595 |
| Opus 5 | $0.00000 | $0.01798 |
| Sonnet 5 | $0.00000 | $0.00719 |
| Haiku 4.5 | $0.00000 | $0.00360 |
Grade A, and why
aws-cdk 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 6d 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 — 148 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Create Java AWS CDK v2 infrastructure the same way a business application is built: as BCE business components, not as a flat pile of resources. A construct is a reusable capability; a stack is a deployment boundary. Keep that split and the code stays readable, testable, and refactorable.
Composition
- compose with
bcefor the architecture pattern (business components, boundary/control/entity, package structure) — this skill specializes it for the AWS CDK context and never contradicts it - compose with
java-conventionsfor all language-level rules (modern Java 25 syntax,var, records, pattern matching, text blocks, naming, visibility, streams, exceptions) - this skill adds only what is specific to authoring CDK: project layout, the app→stack→construct split, region pinning, typed configuration,
grant*permissions, and synthesis-based tests
What this skill produces
A Maven, Java 25 CDK v2 project whose packages are BCE business components. The entry-point class loads typed configuration, wires stacks, and calls app.synth(). Each business component is named after the AWS capability it provisions (s3, cloudfront, certificate, route53, codebuild, cognito, iam, stepfunctions). Stacks live in boundary; the reusable resource factories and helpers live in control; immutable specs and value objects live in entity.
A generic, domain-neutral blueprint — the BCE layout, build files, and one worked business component per layer — is in references/project-blueprint.md. Read it when scaffolding a new project or when you need a concrete template for a stack, a control factory, an entity, or the tests; copy the shapes, not the example domain. Read references/naming-conventions.md for the full CloudFormation / CDK / Java naming tables — casing rules for logical IDs, stack names, tags, and construct IDs.
Scaffolding a new project
A clone of AdamBien/aws-cdk-plain is a valid starting point; otherwise generate the files directly. Either way, work in this order — it mirrors the dependency direction of synthesis:
What ships with it
3 files 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.
- 6d ago First seen · 148 lines · 0 tokens per session scan A 1a8cecd13c48
aws-cdk is a skill published in the GitHub repository AdamBien/airails (48 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 3,595 tokens. 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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