cosmix
@cosmix
Public Skills
md-tables
by cosmix
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.
search
by cosmix
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.
code-review
by cosmix
Performs comprehensive code reviews focusing on correctness, maintainability, performance, security, and best practices. Trigger keywords: review, code review, PR review, pull request, check code, audit code, feedback, approve, request changes, comment, suggestion, LGTM, nit, blocker, code quality, best practice, architecture review, design review, security review, infra review.
logging-observability
by cosmix
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.
concurrency
by cosmix
Comprehensive concurrency and parallelism patterns for multi-threaded and async programming. Use when implementing async/await, parallel processing, thread safety, worker pools, or debugging race conditions and deadlocks. Triggers: async, await, thread, mutex, lock, semaphore, channel, actor, parallel, concurrent, race condition, deadlock, livelock, atomic, futures, promises, tokio, asyncio, goroutine, spawn, Arc, Mutex, RwLock, mpsc, select, join, worker pool, queue, synchronization, critical section, context switch.
auth
by cosmix
Authentication and authorization patterns including OAuth2, JWT, RBAC/ABAC, session management, API keys, password hashing, and MFA. USE WHEN: Implementing login flows, access control, identity management, tokens, permissions, session handling, API key authentication, or MFA. DO NOT USE: For security vulnerability scanning (use /security-scan), for security audits (use /security-audit), for threat modeling (use /threat-model). TRIGGERS: login, logout, signin, signup, authentication, authorization, password, credential, token, JWT, OAuth, OAuth2, OIDC, SSO, SAML, session, cookie, RBAC, ABAC, permissions, roles, MFA, 2FA, TOTP, API key, PKCE.
kubernetes
by cosmix
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.
model-evaluation
by cosmix
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.
crossplane
by cosmix
Cloud-native infrastructure management with Crossplane using Kubernetes APIs. Build internal platform APIs for self-service infrastructure provisioning. Use when implementing infrastructure as code, platform engineering, composite resources, XRDs, compositions, claims, provider configuration, or multi-cloud provisioning. Triggers: crossplane, XRD, composition, claim, provider, managed resource, composite resource, infrastructure API, platform engineering, platform API, infrastructure abstraction, self-service infrastructure, kubernetes infrastructure, cloud control plane.
golang
by cosmix
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.
react
by cosmix
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.
diagramming
by cosmix
Create technical diagrams using Mermaid syntax for architecture, sequences, ERDs, flowcharts, and state machines. Use for visualizing system design, data flows, and processes. Triggers: diagram, diagrams, mermaid, plantuml, draw.io, excalidraw, flowchart, sequence diagram, class diagram, architecture diagram, ERD, entity relationship, entity-relationship, C4, C4 model, system context, container diagram, component diagram, state diagram, state machine, visualize, draw, chart, flow, data flow, API flow, system design, architecture visualization, UML.
fluxcd
by cosmix
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.
argocd
by cosmix
GitOps continuous delivery with Argo CD for Kubernetes deployments. Use when implementing declarative GitOps workflows, application sync/rollback, multi-cluster deployments, progressive delivery, or CD automation. Triggers: argocd, argo cd, gitops, application, sync, rollback, app of apps, applicationset, declarative, continuous delivery, CD, deployment automation, kubernetes deployment, multi-cluster, canary deployment, blue-green.
ci-cd
by cosmix
Designs and implements CI/CD pipelines for automated testing, building, deployment, and security scanning across multiple platforms. Covers pipeline optimization, test integration, artifact management, and release automation.
rust
by cosmix
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.
dependency-scan
by cosmix
Scans project dependencies for known vulnerabilities, outdated packages, and license compliance issues. Supports vulnerability scanning (CVE detection), SBOM generation, license compliance checking, and supply chain security analysis across multiple ecosystems (npm, pip, cargo, go, maven, etc.). Trigger keywords: dependency scan, vulnerability, CVE, Snyk, Dependabot, Renovate, npm audit, cargo audit, pip-audit, safety, outdated packages, SBOM, software bill of materials, license compliance, supply chain, security advisory, transitive dependency, lock file.
i18n
by cosmix
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.
e2e-testing
by cosmix
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.
git-workflow
by cosmix
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.
python
by cosmix
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.
database-design
by cosmix
Designs database schemas, data models, relationships, indexes, and migrations for relational, NoSQL, time-series, and warehouse databases. Covers normalization, denormalization, ETL optimization, event sourcing, star schema, and performance tuning. Trigger keywords: schema, table, column, migration, ERD, normalize, denormalize, index, foreign key, primary key, constraint, relationship, SQL, DDL, data model, database design, data warehouse, star schema, snowflake schema, time-series, event sourcing, dimension table, fact table, ETL, data pipeline, OLAP, OLTP.
data-visualization
by cosmix
Creates effective data visualizations, charts, dashboards, and reports across analytics, infrastructure monitoring, and ML domains. Covers library selection, UX design, and accessibility. Trigger keywords: chart, graph, plot, dashboard, report, visualization, matplotlib, plotly, d3, seaborn, grafana, tableau, superset, metabase, KPI, metric, analytics, histogram, heatmap, time-series, scatter, bar-chart.
api-design
by cosmix
Designs RESTful APIs, GraphQL schemas, and RPC interfaces following best practices for consistency, usability, and scalability. Trigger keywords: api design, REST, RESTful, REST API, GraphQL, GraphQL schema, gRPC, OpenAPI, Swagger, endpoint, route, resource, CRUD, HTTP method, GET, POST, PUT, PATCH, DELETE, status code, pagination, filtering, sorting, versioning, HATEOAS, API versioning, schema design, RPC, service design.