Xpersona

Crawler Summary

kubebuilder-patterns answer-first brief

Kubebuilder/controller-runtime design patterns guide for building production-ready Kubernetes controllers. Use when developing, reviewing, or debugging Kubernetes operators and controllers, implementing reconciliation logic, managing resource lifecycle, handling concurrent updates, integrating external services, or following Kubernetes controller best practices. --- name: kubebuilder-patterns description: Kubebuilder/controller-runtime design patterns guide for building production-ready Kubernetes controllers. Use when developing, reviewing, or debugging Kubernetes operators and controllers, implementing reconciliation logic, managing resource lifecycle, handling concurrent updates, integrating external services, or following Kubernetes controller best practices. --- Kubebui Capability contract not published. No trust telemetry is available yet. Last updated 4/15/2026.

Freshness

Last checked 4/15/2026

Best For

kubebuilder-patterns is best for general automation workflows where OpenClaw compatibility matters.

Not Ideal For

Contract metadata is missing or unavailable for deterministic execution.

Evidence Sources Checked

editorial-content, GITHUB OPENCLEW, runtime-metrics, public facts pack

CardFactsSnapshotContractTrust
Claim this agent
Agent DossierGitHubSafety: 94/100

kubebuilder-patterns

Kubebuilder/controller-runtime design patterns guide for building production-ready Kubernetes controllers. Use when developing, reviewing, or debugging Kubernetes operators and controllers, implementing reconciliation logic, managing resource lifecycle, handling concurrent updates, integrating external services, or following Kubernetes controller best practices. --- name: kubebuilder-patterns description: Kubebuilder/controller-runtime design patterns guide for building production-ready Kubernetes controllers. Use when developing, reviewing, or debugging Kubernetes operators and controllers, implementing reconciliation logic, managing resource lifecycle, handling concurrent updates, integrating external services, or following Kubernetes controller best practices. --- Kubebui

OpenClawself-declared

Public facts

4

Change events

1

Artifacts

0

Freshness

Apr 15, 2026

Verifiededitorial-contentNo verified compatibility signals

Capability contract not published. No trust telemetry is available yet. Last updated 4/15/2026.

Trust evidence available

Trust score

Unknown

Compatibility

OpenClaw

Freshness

Apr 15, 2026

Vendor

Hjjzs

Artifacts

0

Benchmarks

0

Last release

Unpublished

Executive Summary

Key links, install path, and a quick operational read before the deeper crawl record.

Verifiededitorial-content

Summary

Capability contract not published. No trust telemetry is available yet. Last updated 4/15/2026.

View Source

Setup snapshot

git clone https://github.com/hjjzs/kubebuilder-patterns.git
  1. 1

    Setup complexity is LOW. This package is likely designed for quick installation with minimal external side-effects.

  2. 2

    Final validation: Expose the agent to a mock request payload inside a sandbox and trace the network egress before allowing access to real customer data.

Evidence Ledger

Everything public we have scraped or crawled about this agent, grouped by evidence type with provenance.

Verifiededitorial-content
Vendor (1)

Vendor

Hjjzs

profilemedium
Observed Apr 15, 2026Source linkProvenance
Compatibility (1)

Protocol compatibility

OpenClaw

contractmedium
Observed Apr 15, 2026Source linkProvenance
Security (1)

Handshake status

UNKNOWN

trustmedium
Observed unknownSource linkProvenance
Integration (1)

Crawlable docs

6 indexed pages on the official domain

search_documentmedium
Observed Apr 15, 2026Source linkProvenance

Release & Crawl Timeline

Merged public release, docs, artifact, benchmark, pricing, and trust refresh events.

Self-declaredagent-index

Docs Update

Docs refreshed: Sign in to GitHub · GitHub

search_documentmedium

Fresh crawlable documentation was indexed for the official domain.

Observed Apr 15, 2026

Artifacts Archive

Extracted files, examples, snippets, parameters, dependencies, permissions, and artifact metadata.

Self-declaredGITHUB OPENCLEW

Extracted files

0

Examples

1

Snippets

0

Languages

typescript

Parameters

Executable Examples

go

func (r *MyReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
    logger := log.FromContext(ctx)
    
    // 1. Fetch resource
    obj := &MyResource{}
    if err := r.Get(ctx, req.NamespacedName, obj); err != nil {
        return ctrl.Result{}, client.IgnoreNotFound(err)
    }
    
    // 2. Handle deletion (Finalizer pattern)
    if !obj.DeletionTimestamp.IsZero() {
        return r.handleDeletion(ctx, obj)
    }
    
    // 3. Ensure Finalizer
    if err := r.ensureFinalizer(ctx, obj); err != nil {
        return ctrl.Result{}, err
    }
    
    // 4. Execute Pipeline
    for _, fn := range r.reconcilePipeline {
        if err := fn(ctx, obj); err != nil {
            logger.Error(err, "pipeline step failed")
            r.Recorder.Eventf(obj, corev1.EventTypeWarning, "SyncFailed", "%v", err)
            return ctrl.Result{}, err
        }
    }
    
    // 5. Update Phase (Phase Derivation pattern)
    return r.syncPhase(ctx, obj)
}

Docs & README

Full documentation captured from public sources, including the complete README when available.

Self-declaredGITHUB OPENCLEW

Docs source

GITHUB OPENCLEW

Editorial quality

ready

Kubebuilder/controller-runtime design patterns guide for building production-ready Kubernetes controllers. Use when developing, reviewing, or debugging Kubernetes operators and controllers, implementing reconciliation logic, managing resource lifecycle, handling concurrent updates, integrating external services, or following Kubernetes controller best practices. --- name: kubebuilder-patterns description: Kubebuilder/controller-runtime design patterns guide for building production-ready Kubernetes controllers. Use when developing, reviewing, or debugging Kubernetes operators and controllers, implementing reconciliation logic, managing resource lifecycle, handling concurrent updates, integrating external services, or following Kubernetes controller best practices. --- Kubebui

Full README

name: kubebuilder-patterns description: Kubebuilder/controller-runtime design patterns guide for building production-ready Kubernetes controllers. Use when developing, reviewing, or debugging Kubernetes operators and controllers, implementing reconciliation logic, managing resource lifecycle, handling concurrent updates, integrating external services, or following Kubernetes controller best practices.

Kubebuilder Design Patterns

Production-validated patterns from Sealos controllers (Account, Devbox, User, Terminal, ObjectStorage, License).

Pattern Selection Guide

| Scenario | Pattern | |----------|---------| | Update resource status | RetryOnConflict | | Create child resources | CreateOrUpdate + Owner Reference | | Cleanup before deletion | Finalizer | | Reduce unnecessary Reconciles | Custom Predicate | | Optimize List queries | Field Indexer | | Handle large resource counts | Concurrent Reconcile | | Multi-step operations | Pipeline | | One-time async operations | Request-Driven | | Aggregate status from multiple sources | Phase Derivation | | External system integration | External Service | | Periodic background tasks | Scheduled Task | | Audit and diagnostics | Event Recording | | Auto-expire resources | TTL/Expiration | | Safe resource deletion | Resource Deletion | | Environment configuration | Configuration Loading | | Resource identification | Recommended Labels | | Error handling | Error Handling |

Pattern Categories

Core Patterns (Essential)

  1. RetryOnConflict - Handle optimistic locking conflicts with automatic retry
  2. CreateOrUpdate - Declarative resource management for child resources
  3. Finalizer - Pre-deletion hooks for cleanup and cascade delete
  4. Custom Predicate - Event filtering to reduce unnecessary reconciliations

Performance Patterns

  1. Field Indexer - Cache indexing for O(1) List queries
  2. Concurrent Reconcile - Parallel processing with MaxConcurrentReconciles

Architecture Patterns

  1. Pipeline - Multi-step orchestration with Context-based state passing
  2. Request-Driven - Command-style operations via Request CRDs
  3. Phase Derivation - Status aggregation from multiple signal sources

Integration Patterns

  1. External Service - MinIO, database, message queue integration
  2. Scheduled Task - Background periodic tasks via manager.Runnable
  3. Event Recording - Kubernetes Events for audit and observability

Resource Management Patterns

  1. Owner Reference - Automatic cascade deletion
  2. TTL/Expiration - Auto-cleanup for temporary resources
  3. Resource Deletion - Safe deletion with UID checks

Engineering Practices

  1. Configuration Loading - Environment-based configuration
  2. Recommended Labels - Kubernetes standard labels
  3. Error Handling - Error classification, retry strategies, recovery

Quick Reference

Reconcile Structure Template

func (r *MyReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
    logger := log.FromContext(ctx)
    
    // 1. Fetch resource
    obj := &MyResource{}
    if err := r.Get(ctx, req.NamespacedName, obj); err != nil {
        return ctrl.Result{}, client.IgnoreNotFound(err)
    }
    
    // 2. Handle deletion (Finalizer pattern)
    if !obj.DeletionTimestamp.IsZero() {
        return r.handleDeletion(ctx, obj)
    }
    
    // 3. Ensure Finalizer
    if err := r.ensureFinalizer(ctx, obj); err != nil {
        return ctrl.Result{}, err
    }
    
    // 4. Execute Pipeline
    for _, fn := range r.reconcilePipeline {
        if err := fn(ctx, obj); err != nil {
            logger.Error(err, "pipeline step failed")
            r.Recorder.Eventf(obj, corev1.EventTypeWarning, "SyncFailed", "%v", err)
            return ctrl.Result{}, err
        }
    }
    
    // 5. Update Phase (Phase Derivation pattern)
    return r.syncPhase(ctx, obj)
}

Common Pattern Combinations

| Use Case | Patterns | |----------|----------| | Standard controller | Finalizer + CreateOrUpdate + Owner Reference + Event Recording | | High-volume controller | Custom Predicate + Field Indexer + Concurrent Reconcile | | Complex workflows | Pipeline + Phase Derivation + Error Handling | | External integrations | External Service + Scheduled Task + Configuration Loading |

Usage

Read the relevant pattern reference file based on your implementation needs. Each pattern file contains:

  • Problem background and motivation
  • Implementation with code examples
  • Best practices and common errors
  • Real-world cases from Sealos controllers

Contract & API

Machine endpoints, protocol fit, contract coverage, invocation examples, and guardrails for agent-to-agent use.

MissingGITHUB OPENCLEW

Endpoints

Dossier APISnapshot APIContract APITrust API

Contract coverage

Status

missing

Auth

None

Streaming

No

Data region

Unspecified

Protocol support

OpenClaw: self-declared

Requires: none

Forbidden: none

Guardrails

Operational confidence: low

No positive guardrails captured.
Invocation examples
curl -s "https://xpersona.co/api/v1/agents/hjjzs-kubebuilder-patterns/snapshot"
curl -s "https://xpersona.co/api/v1/agents/hjjzs-kubebuilder-patterns/contract"
curl -s "https://xpersona.co/api/v1/agents/hjjzs-kubebuilder-patterns/trust"

Reliability & Benchmarks

Trust and runtime signals, benchmark suites, failure patterns, and practical risk constraints.

Missingruntime-metrics

Trust signals

Handshake

UNKNOWN

Confidence

unknown

Attempts 30d

unknown

Fallback rate

unknown

Runtime metrics

Observed P50

unknown

Observed P95

unknown

Rate limit

unknown

Estimated cost

unknown

Do not use if

Contract metadata is missing or unavailable for deterministic execution.
No benchmark suites or observed failure patterns are available.

Media & Demo

Every public screenshot, visual asset, demo link, and owner-provided destination tied to this agent.

Missingno-media
No screenshots, media assets, or demo links are available.

Related Agents

Neighboring agents from the same protocol and source ecosystem for comparison and shortlist building.

Self-declaredprotocol-neighbors
GITHUB_REPOSactivepieces

Rank

70

AI Agents & MCPs & AI Workflow Automation • (~400 MCP servers for AI agents) • AI Automation / AI Agent with MCPs • AI Workflows & AI Agents • MCPs for AI Agents

Traction

No public download signal

Freshness

Updated 2d ago

OPENCLAW
GITHUB_REPOScherry-studio

Rank

70

AI productivity studio with smart chat, autonomous agents, and 300+ assistants. Unified access to frontier LLMs

Traction

No public download signal

Freshness

Updated 5d ago

MCPOPENCLAW
GITHUB_REPOSAionUi

Rank

70

Free, local, open-source 24/7 Cowork app and OpenClaw for Gemini CLI, Claude Code, Codex, OpenCode, Qwen Code, Goose CLI, Auggie, and more | 🌟 Star if you like it!

Traction

No public download signal

Freshness

Updated 6d ago

MCPOPENCLAW
GITHUB_REPOSCopilotKit

Rank

70

The Frontend for Agents & Generative UI. React + Angular

Traction

No public download signal

Freshness

Updated 23d ago

OPENCLAW
Agent hubMore from this sourceOpenClaw agents
Machine Appendix

Contract JSON

{
  "contractStatus": "missing",
  "authModes": [],
  "requires": [],
  "forbidden": [],
  "supportsMcp": false,
  "supportsA2a": false,
  "supportsStreaming": false,
  "inputSchemaRef": null,
  "outputSchemaRef": null,
  "dataRegion": null,
  "contractUpdatedAt": null,
  "sourceUpdatedAt": null,
  "freshnessSeconds": null
}

Invocation Guide

{
  "preferredApi": {
    "snapshotUrl": "https://xpersona.co/api/v1/agents/hjjzs-kubebuilder-patterns/snapshot",
    "contractUrl": "https://xpersona.co/api/v1/agents/hjjzs-kubebuilder-patterns/contract",
    "trustUrl": "https://xpersona.co/api/v1/agents/hjjzs-kubebuilder-patterns/trust"
  },
  "curlExamples": [
    "curl -s \"https://xpersona.co/api/v1/agents/hjjzs-kubebuilder-patterns/snapshot\"",
    "curl -s \"https://xpersona.co/api/v1/agents/hjjzs-kubebuilder-patterns/contract\"",
    "curl -s \"https://xpersona.co/api/v1/agents/hjjzs-kubebuilder-patterns/trust\""
  ],
  "jsonRequestTemplate": {
    "query": "summarize this repo",
    "constraints": {
      "maxLatencyMs": 2000,
      "protocolPreference": [
        "OPENCLEW"
      ]
    }
  },
  "jsonResponseTemplate": {
    "ok": true,
    "result": {
      "summary": "...",
      "confidence": 0.9
    },
    "meta": {
      "source": "GITHUB_OPENCLEW",
      "generatedAt": "2026-04-16T23:35:35.660Z"
    }
  },
  "retryPolicy": {
    "maxAttempts": 3,
    "backoffMs": [
      500,
      1500,
      3500
    ],
    "retryableConditions": [
      "HTTP_429",
      "HTTP_503",
      "NETWORK_TIMEOUT"
    ]
  }
}

Trust JSON

{
  "status": "unavailable",
  "handshakeStatus": "UNKNOWN",
  "verificationFreshnessHours": null,
  "reputationScore": null,
  "p95LatencyMs": null,
  "successRate30d": null,
  "fallbackRate": null,
  "attempts30d": null,
  "trustUpdatedAt": null,
  "trustConfidence": "unknown",
  "sourceUpdatedAt": null,
  "freshnessSeconds": null
}

Capability Matrix

{
  "rows": [
    {
      "key": "OPENCLEW",
      "type": "protocol",
      "support": "unknown",
      "confidenceSource": "profile",
      "notes": "Listed on profile"
    }
  ],
  "flattenedTokens": "protocol:OPENCLEW|unknown|profile"
}

Facts JSON

[
  {
    "factKey": "docs_crawl",
    "category": "integration",
    "label": "Crawlable docs",
    "value": "6 indexed pages on the official domain",
    "href": "https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fopenclaw%2Fskills%2Ftree%2Fmain%2Fskills%2Fasleep123%2Fcaldav-calendar",
    "sourceUrl": "https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fopenclaw%2Fskills%2Ftree%2Fmain%2Fskills%2Fasleep123%2Fcaldav-calendar",
    "sourceType": "search_document",
    "confidence": "medium",
    "observedAt": "2026-04-15T05:03:46.393Z",
    "isPublic": true
  },
  {
    "factKey": "vendor",
    "category": "vendor",
    "label": "Vendor",
    "value": "Hjjzs",
    "href": "https://github.com/hjjzs/kubebuilder-patterns",
    "sourceUrl": "https://github.com/hjjzs/kubebuilder-patterns",
    "sourceType": "profile",
    "confidence": "medium",
    "observedAt": "2026-04-15T02:16:49.525Z",
    "isPublic": true
  },
  {
    "factKey": "protocols",
    "category": "compatibility",
    "label": "Protocol compatibility",
    "value": "OpenClaw",
    "href": "https://xpersona.co/api/v1/agents/hjjzs-kubebuilder-patterns/contract",
    "sourceUrl": "https://xpersona.co/api/v1/agents/hjjzs-kubebuilder-patterns/contract",
    "sourceType": "contract",
    "confidence": "medium",
    "observedAt": "2026-04-15T02:16:49.525Z",
    "isPublic": true
  },
  {
    "factKey": "handshake_status",
    "category": "security",
    "label": "Handshake status",
    "value": "UNKNOWN",
    "href": "https://xpersona.co/api/v1/agents/hjjzs-kubebuilder-patterns/trust",
    "sourceUrl": "https://xpersona.co/api/v1/agents/hjjzs-kubebuilder-patterns/trust",
    "sourceType": "trust",
    "confidence": "medium",
    "observedAt": null,
    "isPublic": true
  }
]

Change Events JSON

[
  {
    "eventType": "docs_update",
    "title": "Docs refreshed: Sign in to GitHub · GitHub",
    "description": "Fresh crawlable documentation was indexed for the official domain.",
    "href": "https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fopenclaw%2Fskills%2Ftree%2Fmain%2Fskills%2Fasleep123%2Fcaldav-calendar",
    "sourceUrl": "https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fopenclaw%2Fskills%2Ftree%2Fmain%2Fskills%2Fasleep123%2Fcaldav-calendar",
    "sourceType": "search_document",
    "confidence": "medium",
    "observedAt": "2026-04-15T05:03:46.393Z",
    "isPublic": true
  }
]

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