key-cape/INTENT.md

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# INTENT
## Purpose
This repository exists to provide a **lightweight, profile-conformant identity and access management (IAM) system**.
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It ensures that applications can rely on a **stable, versioned authentication contract** independent of the underlying IAM implementation.
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## Primary Utility
The repository provides an implementation of a **versioned IAM profile** that:
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* Delivers OIDC/PKCE-based authentication with strong security constraints
* Normalizes identity data across heterogeneous backend systems
* Enforces strict adherence to the defined IAM contract
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* Enables seamless migration between lightweight and expanded IAM modes
It transforms IAM from a system dependency into a **replaceable, contract-driven capability**.
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## Intended Users
* Application developers integrating against the IAM profile
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* Infrastructure operators (`adm`) deploying IAM in constrained environments
* Automation systems (`atm`) managing identity, migration, and validation workflows
* LLM agents (`agt`) interacting with authenticated services
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## Strategic Role in the System
This repository serves as the **lightweight IAM layer**:
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* It provides a **resource-efficient implementation** of the IAM profile for environments with limited resources
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* It anchors IAM around a **profile contract rather than a specific implementation**
* It enables a **two-mode architecture**:
* Lightweight mode (this implementation)
* Expanded mode (a heavier, full-featured implementation)
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The profile ensures that both modes are **interchangeable without application changes**.
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## Strategic Boundaries
This repository is **not** intended to:
* Become a full-featured, general-purpose IAM platform
* Extend beyond the defined IAM profile
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* Support features that weaken security guarantees (e.g., implicit flow, wildcard redirects)
* Replace or wrap the heavier expanded-mode implementation
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Its responsibility is limited to **strict, secure, and transparent profile implementation**.
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## Design Principles
* **Contract over implementation**
Applications depend on the IAM profile, not on KeyCape internals
* **Security through constraint**
Only explicitly allowed features are supported; unsafe patterns are rejected
* **Explicitness over convenience**
Unsupported features must fail clearly and predictably
* **Replaceability by design**
The system must be swappable with a heavier profile implementation without breaking integrations
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* **Canonical identity model**
Identity data must be normalized and consistent across all backends
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## Maturity Target
A mature version of this repository should:
* Fully implement and enforce the **IAM profile** with zero ambiguity
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* Provide **complete migration pathways** between lightweight and expanded modes
* Offer **deterministic and testable behavior** across all supported scenarios
* Act as a **reference implementation** of the IAM profile
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* Enable IAM deployments that are **minimal, secure, and operationally efficient**
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## Stability Note
Changes to this file represent a **deliberate shift in the IAM contract, scope, or architectural role** of this repository.
Such changes must be made with explicit intent, as they directly affect all dependent applications.