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Transaction-based Package Coordination System Specification

Context and Problem Statement

GitHub Issue: crossplane/crossplane#6766

Current Problem: Crossplane's package manager makes incremental changes without validating complete operations upfront, leading to:

• No pre-flight validation of dependency resolution
• CRD/MRD conflicts discovered too late
• Risky complex operations with no guarantee of success

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PR Style Guide for LLM Agents

Git Commit and PR Style Guide

This guide helps LLM agents write git commits and pull requests in Nic Cope's style.

Git Commit Messages

Required Format

• Always include: Signed-off-by: Nic Cope

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package main

import (
        "bytes"
        "flag"
        "fmt"
        "io/fs"
        "log"
        "os"
        "path/filepath"

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apiVersion: apiextensions.crossplane.io/v1alpha1
kind: FunctionIO
# Optional arbitrary KRM-like resource. Each function in a pipeline will be
# called with its own function config (i.e. config is not pipelined).
config:
  apiVersion: database.example.org/v1alpha1
  kind: Config
  metadata:
    name: cloudsql
  spec:

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---
apiVersion: apiextensions.crossplane.io/v1
kind: Composition
metadata:
  name: leaktest
spec:
  writeConnectionSecretsToNamespace: crossplane-system
  compositeTypeRef:
    apiVersion: crossplane.io/v1alpha1
    kind: LeakTest

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00:11:48 [ .. ] verify dependencies have expected content
all modules verified
00:11:50 [ OK ] go modules dependencies verified
00:11:50 [ .. ] go test unit-tests
?   	github.com/crossplane/conformance/internal	[no test files]
=== RUN   TestCompositeResourceDefinition
    apiextensions_test.go:62: Created XRD "clusterconformances.test.crossplane.io"
=== RUN   TestCompositeResourceDefinition/BecomesEstablishedAndOffered
=== PAUSE TestCompositeResourceDefinition/BecomesEstablishedAndOffered
=== RUN   TestCompositeResourceDefinition/CRDIsCreatedForXR

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  - base:
      apiVersion: identity.aws.crossplane.io/v1alpha1
      kind: IAMPolicy
      spec:
        forProvider:
          description: "policy to access dynamodb table."
    patches:
      - type: PatchSet
        patchSetName: Metadata
      - fromFieldPath: "metadata.name"

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---
apiVersion: apiextensions.crossplane.io/v1alpha1
kind: InfrastructureDefinition
metadata:
  name: wordpressinstances.apps.example.org
spec:
  crdSpecTemplate:
    group: apps.example.org
    version: v1alpha1
    names:

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{
  "format_version": "0.1",
  "provider_schemas": {
    "aws": {
      "provider": {
        "version": 0,
        "block": {
          "attributes": {
            "access_key": {
              "type": "string",

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func TestDoTheThing(t *testing.T) {
  
  cases := map[string]struct{
    thingArg string
    want bool
  }{
    // Add test cases here.
  }

  SetupTheThing()