Find the implementation authority

Use this map to locate an existing mechanism before changing it. It is a source navigation, not another build graph or support database. Source links bind the site’s exact document revision; offline consumers can inspect the same paths in the matching checkout or Source SDK.

Task

Maintained entry

Contract and validation

Authored assembly and fields

configure

Assembly reference; actual resolver rejection tests

CPU facts and Runtime

Arch

Arch contract; CPU runtime compiler/model matrix

Request and deadlines

Core

Ownership; actual Core/epoch contracts

Public face and dispatch

I/O

Factory; public headers and generated fixture tests

Chip/IRQ/DMA implementation

Provider assemblies

Provider guide; production-register models and exact ARM ELF

PCB data

Board guide

Reviewed Board JSON and exact physical unknowns

Wait, task and kernel adapters

OS

OS contract; actual kernel and boundary tests

Reusable algorithms

Components

Public narrow ports; component and owner behavior tests

Consumer/export boundary

Source SDK

SDK tutorial; independent relocated C/C++ consumers

Build targets and presets

CMake

Build contract; actual configure/build/resource gates

New production behavior

Testing

TDD workflow; retained actual RED/GREEN and full gate

Qualification and hardware

HIL

Qualification; distinct software and physical records

Document content and delivery

Document standard

Maintenance; strict source/build/package/published-site checks

Read the relevant contract and adjacent README before changing behavior. Select only maintained modes, keep private provider/vendor types out of consumers, and update declarations, diagrams, examples and translations together when their meaning changes. Preserve original evidence bytes and scope instead of renaming historical results to current HEAD.