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cosmix

cosmix

121 Skills published on GitHub.

loom-prometheus

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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.

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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.

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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.

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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.

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loom-refactoring

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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

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loom-usage

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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.

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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.

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