Generates wiring verification YAML for loom plans. Use when writing truths, artifacts, and wiring fields for plan stages to prove features are actually integrated — commands…
Evaluates ML models for performance, fairness, and reliability. Use for metric selection, cross-validation strategies, overfitting/underfitting diagnosis, hyperparameter tuning,…
Docker and container expertise. Use for writing Dockerfiles, docker-compose files, multi-stage builds, layer optimization, image security hardening, networking, volumes,…
Generate dead code detection configuration for loom plan verification across Rust, TypeScript, Python, Go, and JavaScript.
GitOps continuous delivery with Argo CD for Kubernetes. Use when implementing declarative GitOps workflows, application sync/rollback, multi-cluster deployments, progressive…
Scan project dependencies for CVEs, outdated packages, and license compliance across npm, pip, cargo, go, maven, and other ecosystems.
GitOps continuous delivery toolkit for Kubernetes with Flux CD. Use for declarative deployments, Helm chart automation, Kustomize overlays, image update automation, multi-tenancy,…
Creates and maintains technical documentation including API docs, READMEs, architecture docs, changelogs, ADRs, and inline code comments.
Service mesh implementation with Istio for microservices traffic management, security, and observability.
Observability visualization with Grafana and the LGTM stack. Use for creating dashboards, configuring panels, writing LogQL/TraceQL queries, setting up data sources, dashboard…
Kubernetes deployment, cluster architecture, security, and operations. Use for manifests, Helm charts, RBAC, network policies, operators/CRDs, PodSecurityStandards,…
Kubernetes-native configuration management with Kustomize. Use for environment-specific configs, resource patching (strategic merge, JSON6902), ConfigMap/Secret generation,…
Designs RESTful APIs, GraphQL schemas, and RPC interfaces for consistency, usability, and scalability.
Comprehensive security audits identifying vulnerabilities, misconfigurations, and best-practice violations across applications, APIs, infrastructure, and data pipelines.
Threat modeling methodologies (STRIDE, DREAD, PASTA, attack trees) for secure architecture design. Use when planning new systems, reviewing architecture security, mapping trust…
Fix markdown table alignment and spacing issues. Use when formatting tables in markdown files, aligning columns, normalizing cell padding, or ensuring proper GFM table st — from…
Quick routine security checks for secrets, dependencies, container images, and common vulnerabilities.
Test implementation across unit, integration, e2e, security, infrastructure, data pipeline, and ML domains.
Cloud-native infrastructure management with Crossplane via Kubernetes APIs. Use for building internal platform APIs, composite resources, XRDs, compositions, claims, provider…
Build effective charts, dashboards, and reports across analytics, infrastructure monitoring, and ML domains.
Database schema and data model design for relational, NoSQL, time-series, and warehouse systems. Use for ERDs, normalization/denormalization, indexing, migrations, star/snowflake…
Restructures existing code to improve readability, maintainability, and performance without changing behavior.
Prometheus monitoring and alerting for cloud-native observability. Use for writing PromQL queries, configuring scrape targets, creating alerting and recording rules, instrumenting…
Infrastructure as Code with Terraform/OpenTofu. Use for cloud resource provisioning, module development, state and backend management, multi-environment deployments (workspaces,…
Git operations guidance including branching strategies, commit conventions, merge workflows, conflict resolution, and worktree management.
Generates before/after verification pairs for loom plans. Proves a stage actually changed system behavior by capturing state before and after implementation.
Analyzes and optimizes SQL queries for performance. Use for index design, query rewriting, EXPLAIN/EXPLAIN ANALYZE interpretation, PostgreSQL tuning, N+1 prevention, CTE and…
Designs and optimizes prompts for large language models including system prompts, agent signals, and few-shot examples.
Meta-orchestration skill for Claude driving loom itself. Use when running plans, interpreting loom status, debugging failed or blocked stages, managing worktrees, recovering from…
Python language expertise for idiomatic, production-quality code. Use for web frameworks (FastAPI, Django, Flask), data processing (pandas, numpy), ML patterns (sklearn, pytorch),…
End-to-end testing for web applications with Playwright, Cypress, Selenium, and Puppeteer. Use for setting up E2E tests, debugging failures, improving reliability, and…
Modern React development patterns. Use for building React 19+ applications with components, hooks, Jotai state, React Router v7, server components, accessibility, performance…
API rate limiting and quota management. Use when implementing request throttling, API quotas, backpressure handling, or abuse protection.
Caching strategies for performance optimization — cache-aside, write-through, write-behind, TTL policies, eviction, and stampede prevention.
Run multi-axis implementation review through Loom critique. Use before merge, after feature or bug-fix implementation, when receiving review feedback, when reviewing AI/human…
Internationalization and localization patterns for multi-language applications. Use when implementing translation systems, locale-specific formatting (dates, numbers, cur — from…
Document REST APIs with OpenAPI/Swagger specifications, endpoint references, authentication flows, error handling, and SDK guides.
Full-text search and search engine implementation. Use when implementing search functionality, autocomplete, faceted search, relevance tuning, or working with search indexes like…
Strategies and patterns for safe code migrations and upgrades. Use when upgrading frameworks, migrating between technologies, handling deprecations, planning incremental rollouts,…
Feature flag patterns for controlled rollouts, A/B testing, kill switches, and runtime configuration.
Authentication and authorization patterns including OAuth2, JWT, RBAC/ABAC, session management, API keys, password hashing, and MFA.
Background job processing patterns including job queues, scheduled jobs, worker pools, retry strategies, and delivery guarantees.
Performance and load testing with k6, locust, JMeter, Gatling, and artillery. Use for load/stress/spike/soak tests, API and database benchmarking, profiling, p95/p99 latency…
Kubernetes node autoscaling and cost optimization with Karpenter. Use for node provisioning, spot instance management, cluster right-sizing, node consolidation,…
Concurrency and parallelism patterns for multi-threaded and async code. Use when implementing async/await, parallel processing, thread safety, worker pools, channels, or debugging…
Error handling patterns and strategies including Rust Result/Option, API error responses, data pipeline errors, and security-aware handling.
Logging and observability patterns for production systems. Use for structured JSON logging with correlation IDs, distributed tracing (OpenTelemetry, Jaeger, Zipkin), metrics…
Rust language expertise for idiomatic, production-quality code. Use for ownership and lifetimes, error handling with anyhow/thiserror, async/await with tokio, cargo workspace…
Create technical diagrams using Mermaid syntax for architecture, sequences, ERDs, flowcharts, and state machines.
Go language expertise for idiomatic, production-quality code. Use for Go development, concurrency patterns with goroutines and channels, error handling, testing, and module…
TypeScript language expertise for type-safe, production-quality code. Use for advanced type system features (generics, discriminated unions, conditional and mapped types), strict…
Webhook implementation and consumption patterns. Use when building webhook endpoints, receivers, or senders — covering HMAC signature verification, retry with exponential backoff,…
Web accessibility patterns, WCAG compliance, and inclusive design. Use when implementing accessible UI, keyboard navigation, screen reader support, focus management, semantic…
Data serialization and deserialization patterns across formats. Use when implementing data exchange, API payloads, storage formats, encoding/decoding, schema evolution, or…
Event-driven architecture patterns including message queues, pub/sub, event sourcing, CQRS, and sagas.
REQUIRED skill for creating Loom execution plans. Designs DAG-based plans with mandatory knowledge-bootstrap and integration-verify bookends, parallel subagent execution — from…
Professional technical documentation writing for software projects. Use for READMEs, user guides, tutorials, migration guides, changelogs, API documentation, error messages, and…
Data validation patterns covering schema validation, input sanitization, output encoding, and type coercion.
Test strategy guidance — test pyramid design, coverage goals, categorization, flaky test diagnosis, infrastructure architecture, and risk-based prioritization.
Run reproduce-first debugging. Use when tests fail, builds break, behavior regresses, errors occur, flaky behavior appears, performance drops unexpectedly, root cause is unknown,…