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131
README.md
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@ -1,4 +1,4 @@
# Abstract Base Cloud
# Introduction
The ABC Pattern is a universal architectural model for structuring cloud
infrastructure in a way that is predictable, explicit, and safe for automated
@ -18,9 +18,9 @@ At its core, ABC is built on three foundational ideas:
**1. A strict hierarchical structure**
Every ABC architecture is composed of three construct types:
* ApplicationStack — the root of the system
* Logical Units — functional domains
* Resource Groups — cohesive clusters of cloud resources
* ApplicationStack - the root of the system
* Logical Units - functional domains
* Resource Groups - cohesive clusters of cloud resources
This hierarchy forms a strict tree with no lateral references, ensuring clarity
and isolation.
@ -34,8 +34,8 @@ Every construct defines:
Data flows only in two directions:
* Capturing Down — parents pass data to children
* Bubbling Up — children return data to parents
* Capturing Down - parents pass data to children
* Bubbling Up - children return data to parents
This eliminates hidden dependencies and makes the architecture fully analyzable.
@ -75,11 +75,124 @@ ABC replaces this with a model that is:
It is designed to be understood by humans, validated by tools, and generated by
agents.
## Content
## Contents
* [Concepts](concepts.md)
* [Abstract Model](model.md)
* [Rules](rules/index.md)
* [Rules](rules/README.md)
* [Schema](schema.md)
* [Canonical Example](example.md)
* [Profiles](profiles/index.md)
* [Profiles](profiles/README.md)
## Usage
The Abstract Base Cloud Specification is written for both human engineers and
automated agents. It provides a clear, explicit architectural model that people
can read, understand, and apply directly, while also offering the structure and
determinism that agent‑driven tools require.
### Manual
Familarize yourself with one of the specification’s implementation profiles.
### Agent-driven
The specification is designed to be consumed directly by agent‑driven tools
compatible with [AGENTS.md](https://agents.md). It can be referenced either
locally (via Git submodule) or remotely (via the hosted version). Both
approaches expose the same structure:
* `README.md` - the entrypoint of the specification
* `AGENTS.md` - operational guidance for LLM agents
Your own project’s `AGENTS.md` should reference the specification’s
`AGENTS.md` directly, so your agents always operate with the canonical rules
and behaviors.
#### IMPORTANT
Implementation profiles of the specification only pose minor coding
guidelines. You are responsible for setting broader rules for managing your
repository and codebase.
#### Using the Specification as a Git Submodule
You can embed the specification directly into your repository:
``bash
git submodule add https://bitbucket.org/byteb4rb1e/abc-ai.git vendor/abc-ai
``
This makes the spec available locally at `./vendor/abc-ai/`.
Your agents can now reference the spec’s entrypoint and agent guide via relative
paths:
* `./vendor/abc-ai/README.md`
* `./vendor/abc-ai/AGENTS.md`
This is the recommended approach for offline, air‑gapped, or privacy‑sensitive
environments.
#### Using the Hosted Specification
If you prefer not to vendor the spec, you can reference the hosted version:
Entry point:
[https://spec.tiararodney.com/abc/markdown/README.md](https://spec.tiararodney.com/abc/markdown/README.md)
Agent guide:
[https://spec.tiararodney.com/abc/markdown/AGENTS.md](https://spec.tiararodney.com/abc/markdown/AGENTS.md)
Agents can fetch these URLs directly when resolving rules, profiles, or schema
definitions.
#### Referencing the Specification from Your Own AGENTS.md
Your project’s AGENTS.md should explicitly instruct agents to load and follow
the ABC specification. A typical integration looks like this:
#### IMPORTANT
You MUST specify an ABC implementation profile in your `AGENTS.md`.
```markdown
# Agent Guide for This Project
This project uses the **Abstract Base Cloud (ABC)** pattern with the
Typescript CDK implementation profile for all architecture generation,
validation, and transformation.
Agents MUST follow the official ABC Specification and its agent guide:
* Specification entrypoint: `./vendor/abc-ai/README.md`
(or the hosted version if not using a submodule)
* Agent instructions: `./vendor/abc-ai/AGENTS.md`
Agents MUST treat the ABC Specification as authoritative for authoring
Infrastructure-as-Code.
When generating infrastructure code, agents MUST:
1. Load the ABC Specification’s `AGENTS.md`.
2. Apply the rules and behaviors defined there.
3. Use the implementation profile appropriate for the target IaC tool.
4. Validate all generated output against the ABC Schema.
```
## License
The Abstract Base Cloud Specification is licensed under the
Creative Commons Attribution–NoDerivatives 4.0 International License (CC‑BY‑ND 4.0).
You are free to:
* copy and redistribute the specification in any medium or format
* use it for commercial or non‑commercial purposes
Under the following terms:
* Attribution — You must give appropriate credit and provide a link to the
license.
* No Derivatives — If you remix, transform, or build upon the material, you may
not distribute the modified specification.
See the full license text in [LICENSE](LICENSE).

6
model.md
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@ -4,9 +4,9 @@
The ABC Pattern defines a strict three‑layer hierarchy of constructs (ABC‑C0):
* Application Stack (ABC‑C1) — the root deployment boundary.
* Logical Units (ABC‑C2) — first‑level domains within the application.
* Resource Groups (ABC‑C3) — fine‑grained functional clusters inside each
* Application Stack (ABC‑C1) - the root deployment boundary.
* Logical Units (ABC‑C2) - first‑level domains within the application.
* Resource Groups (ABC‑C3) - fine‑grained functional clusters inside each
Logical Unit.
This hierarchy is **strictly vertical**.

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@ -0,0 +1,21 @@
# Profiles
Profiles define how the ABC Pattern maps onto specific IaC tools. Each profile
introduces additional rules, conventions, and examples tailored to the target
system.
Profiles use identifiers of the form:
```default
ABC-PROFILE-<PROFILE>-R#
```
Current profiles include:
* imperative, object‑oriented implementations
* declarative module‑based implementation
Profiles demonstrate that ABC is not tied to any particular paradigm.
* [CDK TypeScript Profile](cdk-ts.md)
* [Terraform Profile](tf.md)

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profiles/cdk-ts.md
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@ -112,7 +112,7 @@ Application Stack.
### Core Types
```javascript
```typescript
export interface InputContract {}
export interface OutputContract {}
@ -123,7 +123,7 @@ export interface HasOutputs<TOutputs extends OutputContract> {
### Application Stack Base
```javascript
```typescript
import { Stack, StackProps } from 'aws-cdk-lib';
import { Construct } from 'constructs';
import { OutputContract } from './core-types';
@ -141,7 +141,7 @@ export abstract class ABCApplicationStack<
### Logical Unit Base
```javascript
```typescript
import { Construct } from 'constructs';
import { InputContract, OutputContract, HasOutputs } from './core-types';
@ -161,7 +161,7 @@ export abstract class ABCLogicalUnit<
### Resource Group Base
```javascript
```typescript
import { Construct } from 'constructs';
import { InputContract, OutputContract, HasOutputs } from './core-types';
@ -191,7 +191,7 @@ src/data/storage/index.ts
src/data/database/index.ts
```
```javascript
```typescript
import { Construct } from 'constructs';
import { ABCLogicalUnit } from '../abc/logical-unit';
import { StorageGroup } from './storage';
@ -316,7 +316,7 @@ WebApp Resource Group and CDN Resource Group follow the same pattern.
## Application Stack
```javascript
```typescript
import { Construct } from 'constructs';
import { ABCApplicationStack } from './abc/application-stack';
import { DataUnit } from './data';

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# Rules
The ABC Pattern is defined and enforced through two complementary rule families:
* [Normative Rules](normative.md)
* [Validation Rules](validation.md)
Together, these rule sets establish the semantic, structural, and mechanical
guarantees that make ABC architectures predictable, verifiable, and safe for
automated reasoning and transformation.
Although closely related, the two rule families serve distinct purposes:
**Normative Rules** define the semantic contract of the ABC Pattern. They
specify what MUST, SHOULD, or MAY be true in any ABC‑compliant architecture,
independent of implementation language, cloud provider, or IaC tool.
**Validation Rules** define the mechanical checks required to verify that an ABC
architecture conforms to the Normative Rules and the ABC Schema. Where Normative
Rules describe what must be true, Validation Rules describe how to detect
violations.