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Agent Skills in category: Uncategorized

76732 skills match this category. Browse curated collections and explore related Agent Skills.

loom-e2e-testing

End-to-end testing patterns and best practices for web applications using Playwright, Cypress, Selenium, and Puppeteer. Covers Page Object Model, test fixtures, selector strategies, async handling, visual regression testing, and flaky test prevention. Includes QA expertise for acceptance testing, smoke testing, cross-browser testing, and test reliability. Use when setting up E2E tests, debugging test failures, improving test reliability, or implementing browser automation. Trigger keywords: e2e, e2e testing, end-to-end, end-to-end tests, Playwright, Cypress, Selenium, Puppeteer, Page Object Model, page object, test fixtures, selectors, locator, locators, data-testid, async tests, visual regression, visual testing, screenshot, flaky tests, flakiness, browser testing, browser automation, UI test, UI testing, acceptance test, acceptance testing, smoke test, smoke testing, integration test, wait, waits, assertion, assertions, test data, test isolation.

cosmix
cosmix
361

loom-error-handling

Comprehensive error handling patterns and strategies including Rust Result/Option, API error responses, data pipeline error handling, and security-aware error handling. Use when implementing exception handling, error recovery, retry logic, circuit breakers, fallback mechanisms, graceful degradation, or designing error hierarchies. Triggers: error, exception, try, catch, throw, raise, Result, Option, panic, recover, retry, fallback, graceful degradation, circuit breaker, error boundary, 500, 4xx, 5xx, thiserror, anyhow, RFC 7807, error propagation, error messages, stack trace.

cosmix
cosmix
361

loom-event-driven

Event-driven architecture patterns including message queues, pub/sub, event sourcing, CQRS, and sagas. Use when implementing async messaging, distributed transactions, event stores, command query separation, domain events, integration events, data streaming, choreography, orchestration, or integrating with RabbitMQ, Kafka, Apache Pulsar, AWS SQS, AWS SNS, NATS, event buses, or message brokers.

cosmix
cosmix
361

loom-feature-flags

Feature flag patterns for controlled rollouts, A/B testing, kill switches, and runtime configuration. Use when implementing feature toggles, feature flags, gradual rollouts, canary releases, percentage rollouts, dark launches, user targeting, A/B tests, experiments, circuit breakers, emergency kill switches, model switching, or infrastructure flags.

cosmix
cosmix
361

loom-fluxcd

GitOps continuous delivery toolkit for Kubernetes with Flux CD. Use when implementing GitOps workflows, declarative deployments, Helm chart automation, Kustomize overlays, image update automation, multi-tenancy, or Git-based continuous delivery. Triggers: flux, fluxcd, gitops, kustomization, helmrelease, gitrepository, helmrepository, imagerepository, imagepolicy, image automation, source controller, continuous delivery, kubernetes deployment automation, helm automation, kustomize automation, git sync, declarative deployment.

cosmix
cosmix
361

loom-git-workflow

Manages Git operations including branching strategies, commit conventions, merge workflows, conflict resolution, and worktree management. Trigger keywords: git, branch, commit, merge, rebase, pull request, PR, cherry-pick, stash, reset, revert, checkout, switch, worktree, conflict, GitFlow, trunk-based, feature branch, release branch, version control, squash, amend, history, tag, remote, push, pull, fetch, clone.

cosmix
cosmix
361

loom-golang

Go language expertise for writing idiomatic, production-quality Go code. Use for Go development, concurrency patterns, error handling, testing, and module management. Triggers: go, golang, goroutine, channel, interface, struct, pointer, slice, map, defer, context, error, gin, echo, fiber, cobra, viper, gorm, sqlx, go mod, go test, effective go, errgroup, sync, mutex, waitgroup.

cosmix
cosmix
361

loom-grafana

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cosmix
cosmix
361

loom-i18n

Internationalization and localization patterns for multi-language applications. Use when implementing translation systems, locale-specific formatting, RTL layouts, or managing language switching. Keywords: i18n, internationalization, l10n, localization, translation, translate, locale, language, multilingual, multi-language, RTL, right-to-left, LTR, bidirectional, pluralization, plural forms, date format, time format, number format, currency format, timezone, i18next, react-intl, FormatJS, gettext, ICU MessageFormat, message format, language detection, language switching, Accept-Language, locale fallback, translation keys, translation files, JSON translations, PO files, YAML translations, react i18n, React localization, format date, format number, format currency, format relative time, Intl API, NumberFormat, DateTimeFormat, RTL CSS, logical properties, direction-aware, language code, region code, locale identifier, BCP47, ISO 639, translation extraction, pseudo-localization, namespace, translation namespace.

cosmix
cosmix
361

loom-istio

Service mesh implementation with Istio for microservices traffic management, security, and observability. Use when implementing service mesh, mTLS, traffic routing, load balancing, circuit breakers, retries, timeouts, canary deployments, A/B testing, or service-to-service communication. Triggers: istio, service mesh, envoy, sidecar, virtualservice, destinationrule, gateway, mtls, peerauthentication, authorizationpolicy, serviceentry, traffic management, traffic splitting, canary, blue-green, circuit breaker, retry, timeout, load balancing, ingress, egress, observability, tracing, telemetry.

cosmix
cosmix
361

loom-karpenter

Kubernetes node autoscaling and cost optimization with Karpenter. Use when implementing node provisioning, spot instance management, cluster right-sizing, node consolidation, or reducing compute costs. Covers NodePool configuration, EC2NodeClass setup, disruption budgets, spot/on-demand mix strategies, multi-architecture support, and capacity-type selection.

cosmix
cosmix
361

loom-kubernetes

Kubernetes deployment, cluster architecture, security, and operations. Includes manifests, Helm charts, RBAC, network policies, troubleshooting, and production best practices. Trigger keywords: kubernetes, k8s, pod, deployment, statefulset, daemonset, service, ingress, configmap, secret, pvc, namespace, helm, chart, kubectl, cluster, rbac, networkpolicy, podsecurity, operator, crd, job, cronjob, hpa, pdb, kustomize.

cosmix
cosmix
361

loom-kustomize

Kubernetes native configuration management with Kustomize. Use for environment-specific configs, resource patching, manifest organization, multi-environment deployments, and GitOps workflows. Triggers: kustomize, kustomization, overlay, base, patch, strategic merge, json patch, json6902, configmap generator, secret generator, namespace, namePrefix, nameSuffix, commonLabels, commonAnnotations, component, transformer, replacement, multi-environment, dev/staging/prod configs, k8s manifest management.

cosmix
cosmix
361

loom-logging-observability

Comprehensive logging and observability patterns for production systems including structured logging, distributed tracing, metrics collection, log aggregation, and alerting. Triggers for this skill - log, logging, logs, trace, tracing, traces, metrics, observability, OpenTelemetry, OTEL, Jaeger, Zipkin, structured logging, log level, debug, info, warn, error, fatal, correlation ID, span, spans, ELK, Elasticsearch, Loki, Datadog, Prometheus, Grafana, distributed tracing, log aggregation, alerting, monitoring, JSON logs, telemetry.

cosmix
cosmix
361

loom-md-tables

Fix markdown table alignment and spacing issues. Use when formatting tables in markdown files, aligning columns, normalizing cell padding, or ensuring proper table structure. Triggers: markdown table, md table, table formatting, column alignment, pipe table, GFM table, table generator, align columns, table spacing, table layout, fix table, format table, table structure.

cosmix
cosmix
361

loom-model-evaluation

Evaluates machine learning models for performance, fairness, and reliability using appropriate metrics and validation techniques. Covers training debugging, hyperparameter tuning, and production monitoring. Trigger keywords: model evaluation, metrics, accuracy, precision, recall, F1, F1-score, ROC, AUC, ROC-AUC, confusion matrix, cross-validation, k-fold, stratified, overfitting, underfitting, bias, variance, bias-variance tradeoff, hyperparameter, hyperparameter tuning, loss, loss function, metric, benchmark, benchmarking, model performance, classification metrics, regression metrics, RMSE, MSE, MAE, MAPE, R2, R-squared, train-test split, validation set, test set, hold-out, learning curve, validation curve, model selection, error analysis, residual analysis, ML testing, training issues, convergence, gradient, vanishing gradient, exploding gradient, training instability, LLM evaluation, language model evaluation, prompt engineering evaluation, A/B testing, champion-challenger, model monitoring, model drift, data drift, concept drift, model decay.

cosmix
cosmix
361

loom-performance-testing

Performance testing and load testing expertise including k6, locust, JMeter, Gatling, artillery, API load testing, database query optimization, benchmarking strategies, profiling techniques, metrics analysis (p95/p99 latency, throughput, RPS), performance budgets, and bottleneck identification. Use when implementing load tests, stress tests, spike tests, soak tests, analyzing system behavior under concurrent users, measuring saturation points, or optimizing application performance under load. Trigger keywords: performance testing, load testing, stress testing, stress test, load test, performance test, k6, locust, JMeter, Gatling, artillery, benchmark, benchmarking, profiling, latency, throughput, RPS, requests per second, concurrent users, virtual users, percentile, p95, p99, p50, median latency, saturation, bottleneck, performance budget, API load testing, database performance, query optimization, slow queries, scalability testing, capacity planning, response time, error rate, apdex.

cosmix
cosmix
361

loom-plan-writer

REQUIRED skill for creating Loom execution plans. Designs DAG-based plans with mandatory knowledge-bootstrap and integration-verify bookends, parallel subagent execution within stages, and concurrent worktree stages for maximum throughput. Trigger keywords: loom, plan, stage, worktree, orchestration, parallel execution, parallel stages, concurrent execution, knowledge-bootstrap, integration-verify, acceptance criteria, signal, handoff, execution graph, dag, dependencies, loom plan, create plan, write plan, execution plan, orchestration plan, stage dependencies, parallel subagents, functional verification, wiring verification, smoke test.

cosmix
cosmix
361

loom-prometheus

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cosmix
cosmix
361

loom-prompt-engineering

Designs and optimizes prompts for large language models including system prompts, agent signals, and few-shot examples. Covers instruction design, prompt security, chain-of-thought reasoning, and in-context learning for orchestrated AI agents. Trigger keywords: prompt, LLM, GPT, Claude, AI, system prompt, user prompt, few-shot, chain of thought, CoT, in-context learning, prompt template, prompt injection, jailbreak prevention, agent signal, agent instruction, agent orchestration, reasoning, instruction tuning.

cosmix
cosmix
361

loom-python

Python language expertise for writing idiomatic, production-quality Python code. Covers web frameworks (FastAPI, Django, Flask), data processing (pandas, numpy, dask), ML patterns (sklearn, pytorch), async programming, type hints, testing with pytest, packaging (pip, uv, poetry), linting (ruff, mypy, black), and PEP 8 standards. Use for any Python development including data engineering and machine learning workflows. Triggers: python, py, pip, uv, poetry, virtualenv, pytest, pydantic, fastapi, django, flask, pandas, numpy, dataclass, type hints, asyncio, mypy, ruff, black, sklearn, pytorch, tensorflow, jupyter, pipenv, conda.

cosmix
cosmix
361

loom-rate-limiting

API rate limiting and quota management implementation. Use when implementing request throttling, API quotas, backpressure handling, or protection against abuse. Keywords: rate limiting, rate limit, throttle, throttling, token bucket, leaky bucket, sliding window, fixed window, quota, 429, too many requests, DDoS, abuse prevention, API quota, burst, Redis rate limiting, distributed rate limiting, API gateway, per-user limits, per-IP limits, concurrent requests, request limiting.

cosmix
cosmix
361

loom-react

Modern React development patterns including components, hooks, state management, routing, forms, and UI architecture. Covers React 19+, React Router v7, Jotai atoms, server components, accessibility, performance optimization, and testing. Use for building React applications with client-side routing, global state, component composition, and async data loading. Triggers: react, jsx, tsx, component, hook, useState, useEffect, useContext, useReducer, useMemo, useCallback, useRef, props, state, render, virtual DOM, reconciliation, single page application, spa, react-router, jotai, vite, bun, Next.js, Remix, client-side routing, server components, accessibility, a11y, ARIA, performance, code splitting, lazy loading, Suspense, error boundaries, form validation, UI components, design system, composition patterns.

cosmix
cosmix
361

loom-refactoring

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cosmix
cosmix
361

loom-rust

Rust language expertise for writing safe, performant, production-quality Rust code. Primary language for the Loom project. Use for Rust development, ownership patterns, error handling, async/await, cargo management, CLI tools, and serialization. Triggers: rust, cargo, rustc, ownership, borrowing, lifetime, trait, impl, struct, enum, Result, Option, async, await, tokio, serde, clap, thiserror, anyhow, Arc, Mutex, RwLock, RefCell, Box, Rc, Vec, HashMap, HashSet, String, derive, macro.

cosmix
cosmix
361

loom-search

Full-text search and search engine implementation. Use when implementing search functionality, autocomplete, faceted search, relevance tuning, or working with search indexes. Keywords: search, full-text search, Elasticsearch, OpenSearch, Meilisearch, Typesense, fuzzy search, autocomplete, faceted search, facets, inverted index, relevance, ranking, scoring, tokenizer, analyzer, search-as-you-type, aggregations, synonyms, indexing, query, filtering, highlighting, search UI, typeahead, suggestions.

cosmix
cosmix
361

loom-security-audit

Performs comprehensive security audits identifying vulnerabilities, misconfigurations, and security best practice violations across applications, APIs, infrastructure, and data pipelines. Covers OWASP Top 10, compliance requirements (SOC2, PCI-DSS, HIPAA, GDPR), penetration testing, vulnerability assessment, risk assessment, security reviews, and hardening. Trigger keywords: security audit, vulnerability assessment, penetration test, pentest, OWASP, CVE, security review, risk assessment, compliance, SOC2, PCI-DSS, HIPAA, GDPR, security checklist, threat modeling, attack surface, security posture, vulnerability scan, security hardening, security baseline, security controls, security gap analysis, infrastructure security, API security, cloud security, container security, Kubernetes security, network security, application security, data security, ML model security.

cosmix
cosmix
361

loom-security-scan

Quick routine security checks for secrets, dependencies, container images, and common vulnerabilities. Run frequently during development. Triggers: security scan, SAST, DAST, vulnerability scan, dependency scan, container scan, secret scan, credential scan, quick scan, secrets check, vulnerability check, security check, pre-commit security, routine security, Snyk, Trivy, Semgrep, CodeQL, Bandit, safety, npm audit, cargo audit, gitleaks, trufflehog, govulncheck, pip-audit.

cosmix
cosmix
361

loom-serialization

Data serialization and deserialization patterns across formats. Use when implementing data exchange, API payloads, storage formats, encoding/decoding, or cross-language communication. Keywords: serialize, deserialize, serialization, deserialization, JSON, YAML, TOML, XML, Protocol Buffers, protobuf, MessagePack, CBOR, serde, encoding, decoding, schema, schema evolution, versioning, backward compatibility, forward compatibility, binary format, text format, data interchange, gRPC, API contracts.

cosmix
cosmix
361

loom-sql-optimization

Analyzes and optimizes SQL queries for better performance, including index design, query rewriting, execution plan analysis, and database tuning. Covers PostgreSQL-specific optimizations, N+1 prevention, CTE/window function optimization, join strategies, and common anti-patterns. Trigger keywords: SQL, query optimization, EXPLAIN, EXPLAIN ANALYZE, index, slow query, execution plan, query plan, join optimization, subquery, CTE, common table expression, window function, partition, N+1, query cache, database performance, sequential scan, index scan, bitmap scan, nested loop, hash join, merge join, PostgreSQL, query tuning, table scan, cardinality, statistics, vacuum, analyze.

cosmix
cosmix
361

loom-technical-writing

Professional technical documentation writing for software projects including README files, user guides, migration guides, changelogs, API documentation, error messages, release notes, and developer documentation. Covers documentation style, tone, voice, clarity, conciseness, and audience-appropriate writing. Triggers: technical writing, documentation, docs, readme, guide, tutorial, changelog, migration guide, write docs, document code, documentation style, writing guide, tone, voice, clarity, concise, user documentation, developer documentation, API writing, API docs, error messages, release notes, technical communication, writing for developers, documentation standards.

cosmix
cosmix
361

loom-terraform

Creates and manages Infrastructure as Code using Terraform/OpenTofu for cloud resource provisioning, module development, state management, and multi-environment deployments. Trigger keywords: terraform, tf, opentofu, tofu, infrastructure, IaC, infrastructure as code, provision, cloud, aws, azure, gcp, kubernetes, k8s, module, provider, state, backend, plan, apply, workspace, resource, data source, output, variable, locals, import, taint, destroy.

cosmix
cosmix
361

loom-test-strategy

Comprehensive test strategy guidance including test pyramid design, coverage goals, test categorization, flaky test diagnosis, test infrastructure architecture, and risk-based prioritization. Absorbed expertise from eliminated senior-qa-engineer. Use when planning testing approaches, setting up test infrastructure, optimizing test suites, diagnosing flaky tests, or designing test architecture across domains (API, data pipelines, ML models, infrastructure). Trigger keywords: test strategy, test pyramid, test plan, what to test, how to test, test architecture, test infrastructure, coverage goals, test organization, CI/CD testing, test prioritization, testing approach, flaky test, test optimization, test parallelization, API testing strategy, data pipeline testing, ML model testing, infrastructure testing.

cosmix
cosmix
361

loom-testing

Comprehensive test implementation across all domains including unit, integration, e2e, security, infrastructure, data pipelines, and ML models. Covers TDD/BDD workflows, test architecture, flaky test debugging, and coverage analysis.

cosmix
cosmix
361

loom-threat-model

Threat modeling methodologies (STRIDE, DREAD, PASTA, attack trees) for secure architecture design. Use when planning new systems, reviewing architecture security, identifying threats, or assessing risk. Triggers: threat modeling, threat model, STRIDE, DREAD, attack tree, attack surface, trust boundary, data flow diagram, DFD, threat analysis, risk assessment, adversary, threat actor, threat vector, mitigation, security architecture, attack scenario, vulnerability assessment, security posture, defense in depth.

cosmix
cosmix
361

loom-typescript

TypeScript language expertise for writing type-safe, production-quality TypeScript code. Use for TypeScript development, advanced type system features, strict mode, type-safe APIs, and modern frameworks. Triggers: typescript, ts, tsx, type, interface, generic, union, intersection, discriminated union, type guard, type assertion, utility types, conditional types, mapped types, zod, trpc, prisma, react, node, nodejs, deno, bun, npm, pnpm, yarn, type-safe, type safety, tsconfig, strict mode, branded types

cosmix
cosmix
361

loom-usage

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cosmix
cosmix
361

loom-webhooks

Webhook implementation and consumption patterns. Use when implementing webhook endpoints, webhook receivers, webhook senders, HTTP callbacks, event notifications, push notifications, or real-time integrations. Covers signature verification (HMAC, crypto), retry strategies (exponential backoff), idempotency keys, delivery guarantees, webhook security, payload design, and monitoring. Keywords: webhook, webhooks, callback, callbacks, HTTP callback, event notification, push notification, signature verification, HMAC, hmac, crypto signature, retry, exponential backoff, idempotency, idempotent, delivery guarantee, at-least-once delivery, webhook receiver, webhook sender, webhook security, webhook authentication, replay attack, dead letter queue, webhook monitoring.

cosmix
cosmix
361

loom-wiring-test

Generates wiring verification YAML for loom plans. Helps agents prove that features are properly integrated — commands registered, endpoints mounted, modules exported, components rendered. Use when writing truths/artifacts/wiring fields for loom plan stages.

cosmix
cosmix
361

x-collect

Collect and research materials for X (Twitter) content creation using multi-round web search strategy. Use when user wants to gather trending topics, research subjects for X posts, or mentions "collect materials", "research topic", "find content for X", "x-collect". Performs 4-round deep research mimicking human research workflow.

kangarooking
kangarooking
20630

x-create

Create viral X (Twitter) posts including short tweets, threads, and replies. Use when user wants to write X content, create posts, or mentions "create tweet", "write thread", "x-create", "写推文", "创作推文". Supports 5 post styles with customizable templates, plus a mandatory humanize pass to reduce AI-sounding phrasing. First-time users go through onboarding to set up profile.

kangarooking
kangarooking
20630

x-filter

Score and filter topics for X content creation using weighted criteria. Use when user wants to evaluate collected materials, filter topics by score, or mentions "filter topics", "score materials", "x-filter", "选题筛选". Applies 10-point scoring system with customizable weights.

kangarooking
kangarooking
20630

x-publish

Publish tweets and threads to X (Twitter) draft using browser automation. Use when user wants to publish content to X, save to drafts, or mentions "publish to X", "post tweet", "x-publish", "发布推文". Supports short tweets and threads. NEVER auto-publish, always saves to draft.

kangarooking
kangarooking
20630

build-macos-apps

Build professional native macOS apps in Swift with SwiftUI and AppKit. Full lifecycle - build, debug, test, optimize, ship. CLI-only, no Xcode.

glittercowboy
glittercowboy
1,697388

setup-ralph

Set up and configure Geoffrey Huntley's original Ralph Wiggum autonomous coding loop in any directory with proper structure, prompts, and backpressure.

glittercowboy
glittercowboy
1,697388

create-agent-skills

Expert guidance for creating, writing, building, and refining Claude Code Skills. Use when working with SKILL.md files, authoring new skills, improving existing skills, or understanding skill structure and best practices.

glittercowboy
glittercowboy
1,697388

create-hooks

Expert guidance for creating, configuring, and using Claude Code hooks. Use when working with hooks, setting up event listeners, validating commands, automating workflows, adding notifications, or understanding hook types (PreToolUse, PostToolUse, Stop, SessionStart, UserPromptSubmit, etc).

glittercowboy
glittercowboy
1,697388

create-mcp-servers

Create Model Context Protocol (MCP) servers that expose tools, resources, and prompts to Claude. Use when building custom integrations, APIs, data sources, or any server that Claude should interact with via the MCP protocol. Supports both TypeScript and Python implementations.

glittercowboy
glittercowboy
1,697388

create-meta-prompts

Create optimized prompts for Claude-to-Claude pipelines with research, planning, and execution stages. Use when building prompts that produce outputs for other prompts to consume, or when running multi-stage workflows (research -> plan -> implement).

glittercowboy
glittercowboy
1,697388

create-plans

Create hierarchical project plans optimized for solo agentic development. Use when planning projects, phases, or tasks that Claude will execute. Produces Claude-executable plans with verification criteria, not enterprise documentation. Handles briefs, roadmaps, phase plans, and context handoffs.

glittercowboy
glittercowboy
1,697388

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