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.
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.
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.
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.
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.
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.
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.
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.
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.
prometheus
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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.
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.
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.
refactoring
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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.
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.
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.
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.
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.
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.
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.
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.
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.
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
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.
dead-code-check
Generates dead code detection configurations for loom plan verification. Provides language-specific commands, fail patterns, and ignore patterns for Rust, TypeScript, Python, Go, and JavaScript. Use when adding code quality checks to acceptance criteria or truths fields in loom plans. Dead code detection catches incomplete wiring by identifying code that exists but is never called.
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.
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.
before-after
Generates before/after verification pairs for loom plans. Proves a stage actually changed system behavior by capturing state before and after implementation. Use for delta-proof verification — proving new commands, endpoints, modules, or bug fixes work by comparing system state.
beads
Track work with beads issue tracker using TDD workflow. Create issues for RED (failing tests), GREEN (implementation), and REFACTOR phases.
code-review
Comprehensive parallel code review using 5 specialized subagents: general, architectural, TypeScript, product/vision, and TDD/beads compliance
development-loop
Complete development lifecycle: brainstorm → TDD planning → ralph implementation → review → feedback loop until approved
test-driven-development
Use when implementing any feature or bugfix, before writing implementation code
brainstorming
You MUST use this before any creative work - creating features, building components, adding functionality, or modifying behavior. Explores user intent, requirements and design before implementation.
code-review
Code review workflow using GitHub CLI. Use when reviewing pull requests, checking PR diffs, adding review comments, or approving/requesting changes on PRs.
decision-archaeology
Investigate why code was written a certain way. Use when tracing decision history through git blame, commit logs, PRs, and issues to understand the reasoning behind code changes.
coordination
Multi-agent coordination for parallel plan execution with the coordinate and coord_output tools.
bloom_integrity_verification
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crisis_persistence_eval
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healthbench_evaluation
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phi_detection
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evaluation_v2
Anthropic-aligned medical safety evaluation with pass^k metrics, failure taxonomy, and anti-gaming graders
evaluator-brief-generator
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scribegoat2-healthcare-eval
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infographic-item-creator
Generate or update infographic Item components for this repo (TypeScript/TSX in src/designs/items). Use when asked to design, implement, or modify data item visuals, layout logic, or registerItem composites.
infographic-structure-creator
Generate or update infographic Structure components for this repo (TypeScript/TSX in src/designs/structures). Use when asked to design, implement, or modify structure layouts (list/compare/sequence/hierarchy/relation/geo/chart), including layout logic, component composition, and registration.
infographic-syntax-creator
Generate AntV Infographic syntax outputs. Use when asked to turn user content into the Infographic DSL (template selection, data structuring, theme), or to output `infographic <template>` plain syntax.
infographic-template-updater
Update template catalogs and UI prompts after adding new infographic templates (src/templates/*.ts), including SKILL.md template list, site gallery template mappings, and the AIPlayground prompt list.
infographic-creator
Create beautiful infographics based on the given text content. Use this when users request creating infographics.
stealth-browser
Stealth browser automation with anti-bot bypass and persistent page state. Use when users need to navigate Cloudflare-protected sites, fill forms, take screenshots, extract web data, or automate browser workflows on sites that block regular automation. Trigger phrases include "go to [url]", "click on", "fill out the form", "take a screenshot", "scrape", "automate", "bypass cloudflare", or any browser interaction request on protected sites.
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