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loom-api-design

Designs RESTful APIs, GraphQL schemas, and RPC interfaces for consistency, usability, and scalability. Use when defining endpoints, resource models, HTTP semantics, pagination, versioning, or RPC service contracts.

cosmix
cosmix
531

loom-caching

Caching strategies for performance optimization — cache-aside, write-through, write-behind, TTL policies, eviction, and stampede prevention. Use for Redis/Memcached, CDN caching, database query caching, ML model caching, and distributed cache design.

cosmix
cosmix
531

loom-ci-cd

Designs and implements CI/CD pipelines for automated testing, building, deployment, and security scanning across GitHub Actions, GitLab CI, Jenkins, CircleCI, and cloud-native platforms. Covers pipeline optimization, test integration, artifact management, and release automation.

cosmix
cosmix
531

loom-code-review

Comprehensive code review covering correctness, maintainability, performance, security, and best practices. Use for PR reviews, pre-merge audits, architecture and design critique, and actionable reviewer feedback.

cosmix
cosmix
531

loom-concurrency

Concurrency and parallelism patterns for multi-threaded and async code. Use when implementing async/await, parallel processing, thread safety, worker pools, channels, or debugging race conditions and deadlocks across Rust (tokio), Python (asyncio), TypeScript, and Go.

cosmix
cosmix
531

loom-crossplane

Cloud-native infrastructure management with Crossplane via Kubernetes APIs. Use for building internal platform APIs, composite resources, XRDs, compositions, claims, provider configuration, and multi-cloud self-service provisioning.

cosmix
cosmix
531

loom-data-validation

Data validation patterns covering schema validation, input sanitization, output encoding, and type coercion. Use for form/API validation with Zod/Pydantic/Joi/JSON Schema, XSS and injection prevention, constraint checks, data pipeline and ML feature validation.

cosmix
cosmix
531

loom-data-visualization

Build effective charts, dashboards, and reports across analytics, infrastructure monitoring, and ML domains. Use for library selection, visualization UX, accessibility, and domain-specific dashboard design.

cosmix
cosmix
531

loom-database-design

Database schema and data model design for relational, NoSQL, time-series, and warehouse systems. Use for ERDs, normalization/denormalization, indexing, migrations, star/snowflake schemas, event sourcing, and OLTP/OLAP performance tuning.

cosmix
cosmix
531

loom-dead-code-check

Generate dead code detection configuration for loom plan verification across Rust, TypeScript, Python, Go, and JavaScript. Use when adding the dead_code_check field or dead-code acceptance criteria to a plan, or catching incomplete wiring where code exists but is never called.

cosmix
cosmix
531

loom-debugging

Systematic diagnosis and resolution of software bugs, test failures, data quality issues, and performance problems. Use for root-cause analysis, stack trace investigation, flaky/intermittent tests, regressions, crash triage, and "passes locally, fails in CI".

cosmix
cosmix
531

loom-dependency-scan

Scan project dependencies for CVEs, outdated packages, and license compliance across npm, pip, cargo, go, maven, and other ecosystems. Use for vulnerability scanning, SBOM generation, supply chain analysis, and automated dependency updates.

cosmix
cosmix
531

loom-diagramming

Create technical diagrams using Mermaid syntax for architecture, sequences, ERDs, flowcharts, and state machines. Use for visualizing system design, data flows, C4 models, and process diagrams in documentation.

cosmix
cosmix
531

loom-docker

Docker and container expertise. Use for writing Dockerfiles, docker-compose files, multi-stage builds, layer optimization, image security hardening, networking, volumes, registries, and container debugging.

cosmix
cosmix
531

loom-documentation

Creates and maintains technical documentation including API docs, READMEs, architecture docs, changelogs, ADRs, and inline code comments. Use for any documentation task from code-level docstrings to project-level guides.

cosmix
cosmix
531

loom-e2e-testing

End-to-end testing for web applications with Playwright, Cypress, Selenium, and Puppeteer. Use for setting up E2E tests, debugging failures, improving reliability, and implementing browser automation with Page Object Model, selector strategies, network interception, visual regression, and flaky-test prevention.

cosmix
cosmix
531

loom-error-handling

Error handling patterns and strategies including Rust Result/Option, API error responses, data pipeline errors, and security-aware handling. Use for exception handling, error recovery, retry logic, circuit breakers, fallbacks, graceful degradation, error taxonomy, and designing error hierarchies.

cosmix
cosmix
531

loom-event-driven

Event-driven architecture patterns including message queues, pub/sub, event sourcing, CQRS, and sagas. Use for async messaging, distributed transactions, event stores, domain/integration events, data streaming, choreography/orchestration, delivery guarantees, or integrating with Kafka, RabbitMQ, Pulsar, SQS/SNS, or NATS.

cosmix
cosmix
531

loom-feature-flags

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

cosmix
cosmix
531

loom-fluxcd

GitOps continuous delivery toolkit for Kubernetes with Flux CD. Use for declarative deployments, Helm chart automation, Kustomize overlays, image update automation, multi-tenancy, and Git-based continuous delivery.

cosmix
cosmix
531

loom-git-workflow

Git operations guidance including branching strategies, commit conventions, merge workflows, conflict resolution, and worktree management. Use for any Git-related task from branch design to history rewriting.

cosmix
cosmix
531

loom-golang

Go language expertise for idiomatic, production-quality code. Use for Go development, concurrency patterns with goroutines and channels, error handling, testing, and module management following Effective Go principles.

cosmix
cosmix
531

loom-grafana

Observability visualization with Grafana and the LGTM stack. Use for creating dashboards, configuring panels, writing LogQL/TraceQL queries, setting up data sources, dashboard variables/templates, and Grafana alerts. Do not use for PromQL (see loom-prometheus).

cosmix
cosmix
531

loom-i18n

Internationalization and localization patterns for multi-language applications. Use when implementing translation systems, locale-specific formatting (dates, numbers, currency), RTL layouts, pluralization, or language switching with libraries like i18next, react-intl, FormatJS, or gettext.

cosmix
cosmix
531

loom-istio

Service mesh implementation with Istio for microservices traffic management, security, and observability. Use for mTLS, traffic routing, load balancing, circuit breakers, retries, timeouts, canary/blue-green deployments, A/B testing, and Envoy sidecar configuration.

cosmix
cosmix
531

loom-karpenter

Kubernetes node autoscaling and cost optimization with Karpenter. Use for node provisioning, spot instance management, cluster right-sizing, node consolidation, NodePool/EC2NodeClass configuration, disruption budgets, and multi-architecture support.

cosmix
cosmix
531

loom-kubernetes

Kubernetes deployment, cluster architecture, security, and operations. Use for manifests, Helm charts, RBAC, network policies, operators/CRDs, PodSecurityStandards, troubleshooting, and production best practices.

cosmix
cosmix
531

loom-kustomize

Kubernetes-native configuration management with Kustomize. Use for environment-specific configs, resource patching (strategic merge, JSON6902), ConfigMap/Secret generation, overlays/bases, multi-environment deployments, and GitOps workflows.

cosmix
cosmix
531

loom-logging-observability

Logging and observability patterns for production systems. Use for structured JSON logging with correlation IDs, distributed tracing (OpenTelemetry, Jaeger, Zipkin), metrics collection (Prometheus), log aggregation (ELK, Loki, Datadog), and alerting strategies.

cosmix
cosmix
531

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 GFM table structure. Runs a Python script to normalize column widths while preserving alignment markers.

cosmix
cosmix
531

loom-model-evaluation

Evaluates ML models for performance, fairness, and reliability. Use for metric selection, cross-validation strategies, overfitting/underfitting diagnosis, hyperparameter tuning, LLM evaluation, A/B testing, and production monitoring for model drift.

cosmix
cosmix
531

loom-performance-testing

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 analysis, throughput measurement, and bottleneck identification.

cosmix
cosmix
531

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.

cosmix
cosmix
531

loom-prometheus

Prometheus monitoring and alerting for cloud-native observability. Use for writing PromQL queries, configuring scrape targets, creating alerting and recording rules, instrumenting applications, and setting up service discovery. Not for dashboards (use loom-grafana) or log analysis (use loom-logging-observability).

cosmix
cosmix
531

loom-prompt-engineering

Designs and optimizes prompts for large language models including system prompts, agent signals, and few-shot examples. Use for instruction design, prompt security, chain-of-thought reasoning, and in-context learning for orchestrated agents.

cosmix
cosmix
531

loom-python

Python language expertise for idiomatic, production-quality code. Use for web frameworks (FastAPI, Django, Flask), data processing (pandas, numpy), ML patterns (sklearn, pytorch), async programming, type hints, pytest, packaging with uv/poetry, and linting with ruff/mypy/black.

cosmix
cosmix
531

loom-rate-limiting

API rate limiting and quota management. Use when implementing request throttling, API quotas, backpressure handling, or abuse protection. Covers token bucket, leaky bucket, sliding/fixed window algorithms, and distributed rate limiting with Redis.

cosmix
cosmix
531

loom-react

Modern React development patterns. Use for building React 19+ applications with components, hooks, Jotai state, React Router v7, server components, accessibility, performance optimization, and testing. Covers client-side routing, composition, and async data loading.

cosmix
cosmix
531

loom-refactoring

Restructures existing code to improve readability, maintainability, and performance without changing behavior. Use for extracting methods/classes, removing duplication, applying design patterns, improving organization, and reducing technical debt. Not for bug fixes (use loom-debugging) or new features.

cosmix
cosmix
531

loom-rust

Rust language expertise for idiomatic, production-quality code. Use for ownership and lifetimes, error handling with anyhow/thiserror, async/await with tokio, cargo workspace management, CLI tools with clap, and serialization with serde. Primary language of the Loom project.

cosmix
cosmix
531

loom-search

Full-text search and search engine implementation. Use when implementing search functionality, autocomplete, faceted search, relevance tuning, or working with search indexes like Elasticsearch, OpenSearch, Meilisearch, or Typesense.

cosmix
cosmix
531

loom-security-audit

Comprehensive security audits identifying vulnerabilities, misconfigurations, and best-practice violations across applications, APIs, infrastructure, and data pipelines. Use for OWASP Top 10 reviews, compliance assessments (SOC2, PCI-DSS, HIPAA, GDPR), threat modeling, risk assessment, and hardening.

cosmix
cosmix
531

loom-security-scan

Quick routine security checks for secrets, dependencies, container images, and common vulnerabilities. Use for lightweight pre-commit and CI scans with tools like Semgrep, Trivy, gitleaks, cargo audit, npm audit, and pip-audit. Not a substitute for deep audits (use loom-security-audit).

cosmix
cosmix
531

loom-serialization

Data serialization and deserialization patterns across formats. Use when implementing data exchange, API payloads, storage formats, encoding/decoding, schema evolution, or cross-language communication with JSON, YAML, TOML, Protocol Buffers, MessagePack, CBOR, Avro, or serde.

cosmix
cosmix
531

loom-sql-optimization

Analyzes and optimizes SQL queries for performance. Use for index design, query rewriting, EXPLAIN/EXPLAIN ANALYZE interpretation, PostgreSQL tuning, N+1 prevention, CTE and window function optimization, join strategies, and common SQL anti-patterns.

cosmix
cosmix
531

loom-technical-writing

Professional technical documentation writing for software projects. Use for READMEs, user guides, tutorials, migration guides, changelogs, API documentation, error messages, and release notes. Covers style, tone, voice, clarity, and audience-appropriate writing.

cosmix
cosmix
531

loom-terraform

Infrastructure as Code with Terraform/OpenTofu. Use for cloud resource provisioning, module development, state and backend management, multi-environment deployments (workspaces, tfvars), provider configuration, and refactoring/import workflows.

cosmix
cosmix
531

loom-test-strategy

Test strategy guidance — test pyramid design, coverage goals, test categorization, altitude/cost tradeoffs, flaky-test diagnosis, infrastructure architecture, and risk-based prioritization. Use when planning testing approaches, optimizing test suites, or designing test architecture across APIs, data pipelines, ML models, and infrastructure.

cosmix
cosmix
531

loom-testing

Test implementation across unit, integration, e2e, security, infrastructure, data pipeline, and ML domains. Use for writing tests, debugging flaky tests, improving coverage, and following TDD/BDD workflows with pytest, jest, vitest, mocha, junit, or testify.

cosmix
cosmix
531

loom-threat-model

Threat modeling methodologies (STRIDE, DREAD, PASTA, attack trees) for secure architecture design. Use when planning new systems, reviewing architecture security, mapping trust boundaries and data flows, identifying threats, or assessing risk.

cosmix
cosmix
531

Page 755 of 1713 · 85607 results

Adoption

Agent Skills are supported by leading AI development tools.

FAQ

Frequently asked questions about Agent Skills.

01

What are Agent Skills?

Agent Skills are reusable, production-ready capability packs for AI agents. Each skill lives in its own folder and is described by a SKILL.md file with metadata and instructions.

02

What does this agent-skills.md site do?

Agent Skills is a curated directory that indexes skill repositories and lets you browse, preview, and download skills in a consistent format.

03

Where are skills stored in a repo?

By default, the site scans the skills/ folder. You can also submit a URL that points directly to a specific skills folder.

04

What is required inside SKILL.md?

SKILL.md must include YAML frontmatter with at least name and description. The body contains the actual guidance and steps for the agent.

05

How can I submit a repo?

Click Submit in the header and paste a GitHub URL that points to a skills folder. We’ll parse it and add any valid skills to the directory.