Claude Skills by aicodedecode

Program language models instead of prompting them — DSPy signatures, modules, and optimizers that tune prompts automatically.

End-to-end testing mastery: critical journeys, Playwright/Cypress patterns, flakiness control, and CI integration. Use when building or fixing browser E2E suites.

Build rich visualizations with Apache ECharts: option config, dataset transforms, large-data performance, and custom rendering. Use for complex dashboards and big datasets.

Build e-commerce storefronts: product catalog, cart, checkout, payments, and post-purchase flows. Use for online stores and marketplaces.

Deploy and operate endpoint detection and response — policy tuning, behavioral detections, threat hunting, and response actions.

EEG preprocessing and analysis — filtering, artifact removal, time-frequency decomposition, and ERP workflows.

Electronic health record analysis — phenotyping, missingness, bias, and observational study design with EHR data.

Elasticsearch guidance — index design, mappings, query DSL, aggregations, cluster operations, and performance tuning.

Elasticsearch search and analytics — mappings, queries, and cluster health — use when building search or log analytics.

Professional Electron: main/renderer architecture, IPC, security hardening, packaging, and auto-updates. Use when writing, reviewing, or structuring Electron apps.

ELISA development and validation — sandwich vs competitive formats, standard curves, and assay qualification.

Idiomatic Elixir: functional design, OTP supervision, GenServers, Ecto, and Phoenix patterns. Use when writing, reviewing, or structuring Elixir applications.

Electronic lab notebook workflows — structuring entries, templates, linking data, and audit-ready records.

Design effective emails with inbox-friendly layouts, accessible HTML, dark mode, and testing checklists.

Run email marketing end-to-end — list building, campaigns, automation flows, deliverability, and performance optimization.

Master professional email — inbox zero systems, high-impact writing, etiquette, and managing email at scale.

Build HTML emails that render everywhere: table layouts, MJML, dark mode, testing, and deliverability basics. Use for transactional and marketing email.

Reach and sustain inbox zero: triage workflows, filters, templates, batching, and unsubscribing systems. Use when email eats your day or your inbox has become an anxiety source.

Work with text embeddings — choosing models, pooling, similarity measures, evaluation, and multilingual considerations. Use when building semantic search, clustering, or any similarity-based feature.

Style React with Emotion: css prop, styled API, theming, SSR, and zero-config patterns. Use when choosing or using Emotion for CSS-in-JS.

Manage energy, not just time: map your ultradian rhythms, align tasks to energy states, and design recovery. Use when time management alone isn't fixing fatigue or afternoon slumps.

EPUB ebook creation and processing — structure, metadata, validation — use when generating or parsing ebooks.

Setting up application error tracking — SDK integration, grouping, and context — works with any error-monitoring platform.

Use esbuild for extreme-speed builds: bundling, transforming, plugins, and integration into larger pipelines. Use when build speed is the bottleneck.

Design escalation policies — tiers, timeouts, stakeholder matrices, and escalation paths that actually work.

Build evaluation frameworks for LLM systems — harness design, graders, datasets, regression tracking, and human-in-the-loop eval. Use when you need systematic measurement of model or agent quality.

Plan and promote events — conferences, trade shows, webinars-as-events, and field marketing that drives pipeline.

Spreadsheet automation — reading, writing, and analyzing Excel workbooks — use for xlsx generation, parsing, and data workflows.

Coach senior leaders on strategic thinking, stakeholder management, presence, and organizational impact.

Finding exoplanets — transit and radial-velocity methods, light-curve vetting, and false-positive rejection.

Design rigorous experiments — hypotheses, controls, randomization, power analysis, and preregistration. Use when planning any study where you need trustworthy causal conclusions.

Designing psychology experiments — variables, controls, randomization, counterbalancing, and preregistration.

Build React Native apps with Expo: managed workflow, EAS Build/Update, config plugins, push notifications, and store submission. Use when shipping cross-platform mobile apps with Expo.

Express.js API guidance — routing, middleware architecture, error handling, security hardening, and production setup.

Statistical analysis of extreme weather — EVT, return periods, thresholds, and detection/attribution of rare events.

Build with the Falcon open models — UAE's TII models with strong multilingual and efficient architectures.

FastAPI guidance — typed endpoints, Pydantic validation, dependency injection, async patterns, and production deployment.

Uncensored open-model inference on Featherless AI — raw model behavior for research and evaluation.

Teach models new tasks from a handful of examples — prompting strategies, example selection, and in-context learning mechanics.

Master FFmpeg for video/audio conversion, compression, trimming, subtitles, streaming, and batch processing.

Master Figma workflows with auto layout, components, variables, prototyping, and team collaboration.

Developer-Figma collaboration: dev mode, design tokens, component inspection, handoff, and design-system alignment. Use when implementing designs from Figma or aligning code with a design system.

Writing figure captions that make figures self-contained — what to include, ordering, and statistical reporting.

Organize files so you can find anything: naming conventions, folder structures, archiving, and deduplication. Use when digital clutter slows you down or you're setting up a new system.

Build financial models — revenue forecasts, unit economics, scenario analysis, and investor-grade spreadsheets.

Fine-tune large language models — data curation, SFT, parameter-efficient methods (LoRA), evaluation, and avoiding common training failures. Use when a base model needs task-specific behavior or domain knowledge.

Design, implement, and audit firewall policy — rule hygiene, segmentation, change control, and continuous compliance.

Fast serverless inference on Fireworks AI — open models, fine-tuning, and function-calling optimized endpoints.

Working with FITS astronomical data — headers, WCS, image calibration, and stacking with astropy.

Flow cytometry experimental design and analysis — panel design, compensation, gating, and QC.