mcpField

Skills

96,770 packaged capabilities and playbooks for agents. Install any of them with one command.

Data & databases

S
sales-metrics
sales-metrics
majesticlabs-dev / majestic-marketplace

Sales metrics frameworks with leading/lagging indicators, benchmarks, and capacity models.

Marketing & growth38
S
sales-zoominfo
sales-skills / sales

ZoomInfo platform help — SalesOS, MarketingOS, OperationsOS, Copilot, API, integrations. Use when ZoomInfo searches aren't returning the right prospects, enrichment data is incomplete or stale, intent signals aren't surfacing target accounts, Engage sequences have low reply rates, advertising audiences aren't matching your ICP, FormComplete isn't auto-filling leads, data orchestration rules aren't firing, or Copilot recommendations seem off. Do NOT use for general enrichment strategy (use /sales-enrich), general intent strategy (use /sales-intent), general cadence design (use /sales-cadence), general data hygiene strategy (use /sales-data-hygiene), or general B2B advertising strategy (use /sales-b2b-advertising).

Marketing & growth38
S
samtools-bam-processing
samtools-bam-processing
jaechang-hits / sciagent-skills

CLI toolkit for SAM/BAM/CRAM: sort, index, convert, filter, QC alignments. Core commands: view, sort, index, flagstat, stats, depth, markdup, merge. Required between alignment and variant/peak calling. Use pysam for Python-native BAM access; deeptools for normalized coverage tracks.

Data & databases38
S
scientific-figure
scientific-figure
gaasher / agent-loop-skills

Use when the user has scientific data (or a prompt alluding to scientific data) and wants a publication-quality figure made from it. A generator drafts and renders a figure that lands a frozen communication goal; an adversarial critic critiques it hard and grades it 1-5 per axis against a fixed rubric (message, aesthetic, clarity, integrity, and a conditional domain-completeness axis), aggregates to 0-100, and decides pass; the generator revises against the critic's findings until the grade clears a threshold or the budget is hit. Both roles may consult the literature (Semantic Scholar + arXiv) to verify domain content (e.g. a pathway figure's gene set, or a benchmark's reported numbers), and conform to / grade against a named journal's figure spec fetched via web search. Not for writing a paper or analyzing a dataset, and not for editing an existing finished image — this renders a figure from data/brief and iterates on it.

Data & databases38
S
scikit-learn
scikit-learn
brojonat / llmsrules

Build ML pipelines with scikit-learn, including preprocessing, cross-validation, hyperparameter tuning, evaluation, and MLflow tracking. Use when training models, building pipelines, or running ML experiments.

Data & databases38
S
seaborn
seaborn
jackspace / claudeskillz

Statistical visualization. Scatter, box, violin, heatmaps, pair plots, regression, correlation matrices, KDE, faceted plots, for exploratory analysis and publication figures.

Data & databases38
S
snowman
snowman
sleeplessv / relentless-data-skills

Use when querying Snowflake, discovering objects, profiling data, testing transformation hypotheses, investigating data quality, or staging SQL changes. Every snow CLI call goes through this skill.

Data & databases38
S
spacetimedb-typescript
spacetimedb-typescript
douglance / spacetimedb

Build TypeScript clients for SpacetimeDB. Use when connecting to SpacetimeDB from web apps, Node.js, Deno, Bun, or other JavaScript runtimes.

Development38
S
sql
sql
htlin222 / dotfiles

Write SQL queries, optimize execution plans, and design schemas. Use for query optimization, complex joins, or database design.

Data & databases38
S
sql-fundamentals
sql-fundamentals
pluginagentmarketplace / custom-plugin-sql

Master SQL fundamentals including SELECT, INSERT, UPDATE, DELETE, CREATE, ALTER, DROP operations. Learn data types, WHERE clauses, ORDER BY, GROUP BY, and basic joins.

Data & databases38
S
sql-insight
sql-insight
zebbern / claude-code-guide

Translate natural language to SQL, optimize query performance, and interpret EXPLAIN plans for SQLite and PostgreSQL. Triggered when users ask to convert questions into SQL, improve slow queries, tune indexes, analyze execution plans, or mention keywords like NL2SQL, query tuning, or full table scan.

Data & databases38
S
sql-ops
sql-ops
0xdarkmatter / claude-mods

Quick reference for common SQL patterns, CTEs, window functions, and indexing strategies. Triggers on: sql patterns, cte example, window functions, sql join, index strategy, pagination sql.

Data & databases38
S
stat-ab-testing
stat-ab-testing
asgard-ai-platform / skills

Design and analyze A/B tests with proper statistical methodology including sample size calculation, randomization, frequentist and Bayesian approaches, and sequential testing. Use this skill when the user needs to set up an experiment, calculate required sample size, interpret test results, or decide between testing methodologies — even if they say 'should we A/B test this', 'how many users do we need', 'is the test result conclusive', or 'can we stop the test early'.

Data & databases38
S
stat-hypothesis-testing
stat-hypothesis-testing
asgard-ai-platform / skills

Conduct statistical hypothesis testing including null/alternative hypothesis formulation, p-values, Type I/II errors, and test statistic selection. Use this skill when the user needs to determine whether a result is statistically significant, choose the right statistical test, interpret p-values correctly, or evaluate research findings — even if they say 'is this result significant', 'which statistical test should I use', or 'what does this p-value mean'.

Data & databases38
T
tear-sheet
tear-sheet
w95 / awesome-claude-corporate-skills

Generate professional company tear sheets using S&P Capital IQ data via the Kensho LLM-ready API MCP server. Use this skill whenever the user asks for a tear sheet, company one-pager, company profile, fact sheet, company snapshot, or company overview document—especially when they mention a specific company name or ticker. Also trigger when users ask for equity research summaries, M&A company profiles, corporate development target profiles, sales/BD meeting prep documents, or any concise single-company financial summary. This skill supports four audience types: equity research, investment banking/M&A, corporate development, and sales/business development. If the user doesn't specify an audience, ask. Works for both public and private companies.

Documents38
T
tech-drizzle
tech-drizzle
ravnhq / ai-toolkit

Drizzle ORM typesafe schema design, relational queries, prepared statements,

Data & databases38
T
transaction-deduplicator
transaction-deduplicator
lyndonkl / claude

Detects and removes duplicate transactions across overlapping bank, credit-card, and brokerage statement imports using a stable composite key (account_id, date ±1d, amount_cents, description_normalized). Emits a list of new transactions to commit, a list of suppressed duplicates with their reasons, and a list of suspicious near-duplicates that need human review. Use when ingesting financial statements that may overlap prior drops, merging multiple export sources for the same account, or when user mentions duplicate transactions, deduping a transaction file, or reconciling overlapping statements.

Data & databases38
U
usage-metering-accuracy-review
usage-metering-accuracy-review
sylphxai / skills

Design and audit usage-metering accuracy for usage-based pricing, credits, quotas, overages, AI/token billing, API calls, seats, storage, event ingestion, idempotency, late events, aggregation, reconciliation, invoices, customer visibility, disputes, corrections, and revenue leakage. Use when billable usage must be trusted by customers and finance.

Data & databases38
U
uspto-database
uspto-database
jackspace / claudeskillz

Access USPTO APIs for patent/trademark searches, examination history (PEDS), assignments, citations, office actions, TSDR, for IP analysis and prior art searches.

Productivity38
V
V3 Memory Unification
V3 Memory Unification
ruvnet / ruview

Unify 6+ memory systems into AgentDB with HNSW indexing for 150x-12,500x search improvements. Implements ADR-006 (Unified Memory Service) and ADR-009 (Hybrid Memory Backend).

Data & databases38
W
web-fetch
web-fetch
creminiai / cremini-skills

Fetch web page content via Chrome DevTools Protocol (CDP). Full JS rendering, handles redirects (including Google News). Use when you need to read the text content of a web page, scrape articles, or extract information from URLs. Zero dependencies — Python 3 stdlib only. Cross-platform (Mac, Windows, Linux).

Productivity38
X
x-twitter-scraper
x-twitter-scraper
maddhruv / absolute

Absolute skills to 10x your development lifecycle

Data & databases38
X
xlsx
xlsx
lanej / dotfiles

Use xlsx binary for Excel file manipulation including viewing, SQL-like filtering, cell editing, conversion to/from CSV, and data analysis operations. Use this instead of Python (openpyxl, pandas, xlrd) or Node.js libraries for ALL .xlsx file operations — reading, writing, filtering, conversion, and analysis. Trigger on any request involving .xlsx or Excel files.

Documents38
A
adbc
adbc
columnar-tech / skills

Connect to and work with databases using Arrow Database Connectivity (ADBC). Use whenever the user needs to use a database.

Data & databases37
A
agent-browser
agent-browser
dmmulroy / overseer

Automates browser interactions for web testing, form filling, screenshots, and data extraction. Use when the user needs to navigate websites, interact with web pages, fill forms, take screenshots, test web applications, or extract information from web pages.

Agent workflows37
A
agentic-data-science-competition
agentic-data-science-competition
franks-intellab / agentic-kaggle-skill

AI Agent-driven Kaggle competition workflow. Learn from real competition experience: score stabilization patterns, submission troubleshooting, kernel workflows, GPU task delegation, and the spec-driven development approach that achieved top leaderboard positions. Use when: working on any Kaggle competition, analyzing submission failures, setting up automated pipelines, or replicating top notebook solutions.

Data & databases37
A
algo-mfg-doe
algo-mfg-doe
asgard-ai-platform / skills

Design and analyze factorial experiments to identify significant process factors and optimize settings. Use this skill when the user needs to systematically test factor effects, optimize a manufacturing process, or determine which variables matter most — even if they say 'which factors affect quality', 'optimize process settings', or 'design an experiment'.

Data & databases37
A
algo-nlp-summarization
algo-nlp-summarization
asgard-ai-platform / skills

Implement text summarization using extractive and abstractive approaches. Use this skill when the user needs to condense long documents, build an automatic summarization pipeline, or compare summarization strategies — even if they say 'summarize this document', 'TLDR', or 'key points extraction'.

Data & databases37
A
algo-rank-elo
algo-rank-elo
asgard-ai-platform / skills

Implement Elo rating system to rank items or players from pairwise comparison outcomes. Use this skill when the user needs to rank items from head-to-head matchups, build a competitive rating system, or evaluate relative quality from comparison data — even if they say 'player rating', 'ranking from comparisons', or 'competitive scoring system'.

Data & databases37
A
algo-seo-crawl
algo-seo-crawl
asgard-ai-platform / skills

Implement a web crawler pipeline covering URL discovery, fetching, parsing, and storage. Use this skill when the user needs to build a site crawler, audit website structure, or collect web data systematically — even if they say 'scrape a website', 'crawl all pages', or 'site audit spider'.

Data & databases37
A
amazon-product-api-skill

This skill helps users extract structured product listings from Amazon, including titles, ASINs, prices, ratings, and specifications. Use this skill when users want to search for products on Amazon, find the best selling brand products, track price changes for items, get a list of categories with high ratings, compare different brand products on Amazon, extract Amazon product data for market research, look for products in a specific language or marketplace, analyze competitor pricing for keywords, find featured products for search terms, get technical specifications like material or color for product lists.

Data & databases37
A
analyzing-mempool
analyzing-mempool
jeremylongshore / tons-of-skills-marketplace

Monitor blockchain mempools for pending transactions, gas analysis,

Data & databases37
A
atai-newton-fusion-model
atai-newton-fusion-model
archetypeai / agent-skills

Call Newton's C 2.6 fusion model (`Newton::c2_6_8b_fp8_260424d7a55d5e`) on the prod `/query` endpoint with text, image, and video inputs in a single stateless request — no session, no batch job, no SSE plumbing. Use this skill when the user wants per-call multimodal reasoning (describe an image, summarize a clip, classify a state from sensor + visual context) without managing session lifecycle, or when they need the Newton C checkpoint that reasons over video frames via `/query`. Covers the request shape per modality, the two image-attachment paths (file_ids vs base64), multi-image mode, both video paths (`.mp4` + `max_frames`, and client-sampled frames + `query_metadata`), generation parameters, JSON-output prompting, latency budgets, and the C 2.6 identifier gotcha. Do NOT use for streaming / session-based activity monitoring, large multi-file batch jobs, or time-series embedding (KNN / anomaly) classification.

Data & databases37
B
backend
backend
htlin222 / dotfiles

Design APIs, microservices, and database schemas. Use for server-side development, API design, or system architecture.

Development37
B
backend
backend
omer-metin / skills-for-antigravity

World-class backend engineering - distributed systems, database architecture, API design, and the battle scars from scaling systems that handle millions of requestsUse when "backend, api, database, postgres, mysql, mongodb, redis, graphql, rest, authentication, authorization, caching, queue, background job, webhook, migration, transaction, n+1, rate limit, server, node.js, python, go, backend, api, database, architecture, performance, reliability, security" mentioned.

Development37
B
backtesting-frameworks
backtesting-frameworks
rmyndharis / antigravity-skills

Build robust backtesting systems for trading strategies with proper handling of look-ahead bias, survivorship bias, and transaction costs. Use when developing trading algorithms, validating strategies, or building backtesting infrastructure.

Data & databases37
B
bayesian-regression
bayesian-regression
brojonat / llmsrules

Fit Bayesian regression models with PyMC using the Hogg approach — start simple, diagnose problems, upgrade the likelihood. Use when the user needs regression with proper uncertainty quantification, heteroscedastic errors, outlier robustness, or model comparison. Covers Normal, Student-t, and GLM likelihoods with ArviZ diagnostics and LOO-CV.

Data & databases37
B
bcftools-variant-manipulation
bcftools-variant-manipulation
jaechang-hits / sciagent-skills

CLI for VCF/BCF: filter, merge, annotate, query, normalize, compute stats. Core post-variant-calling: quality filtering, multi-sample merging, rsID annotation, genotype extraction. Samtools companion in HTSlib. Use GATK for complex indel realignment during calling; use VCFtools for population genetics stats.

Data & databases37
B
bettafish-opinion-analysis
bettafish-opinion-analysis
xiaomacoltai / bettafish-skill

BettaFish (微舆) multi-agent public opinion analysis system — based on a three-engine parallel architecture with QueryAgent, MediaAgent, and InsightAgent, using ForumEngine to enable collaborative discussion among Agents, and generating dual-format reports: Word/PDF plus high-design-quality HTML. Trigger this skill when the user needs the following analyses: - Analyze the social media reputation and word-of-mouth of a brand/company/product - Track trending public opinion events (such as a car company being criticized or a celebrity controversy) - Mine the content and influence data of specific social media accounts - Monitor competitor public opinion dynamics and compare multiple brands - Analyze public sentiment and attitudes toward a topic - Generate public opinion monitoring reports or crisis warning analyses - Need formal reports in Word document/PDF format - Need high-design-quality interactive HTML visualization reports - Need in-depth public opinion analysis based on real data This skill uses the QueryAgent + MediaAgent + InsightAgent parallel architecture, enables discussion and collaboration among Agents via ForumEngine, runs 3 rounds of reflection loops to optimize analysis results, and finally outputs: 1. **Word/PDF documents** — generated with the docx/pdf subskill, suitable for formal reporting, printing, and archiving 2. **High-design-quality HTML reports** — using the frontend-design subskill, with a distinctive editorial magazine style and interactive visualizations **No databases or mock data are used**; all data is fetched in real time via WebSearch/WebFetch/Browser/Curl. Even for complex multi-step analysis needs, integration of multiple data sources, or generating professionally formatted public opinion reports, be sure to use this skill.

Marketing & growth37
B
bids
bids
crazymsn / academic-skills

Use this skill when working with Brain Imaging Data Structure (BIDS) datasets: organizing neuroscience and biomedical data (MRI, EEG, MEG, iEEG, PET, microscopy, NIRS, motion capture, EMG, MR spectroscopy, behavioral), querying BIDS layouts, validating compliance, converting DICOM to BIDS, writing metadata sidecars, or creating BIDS derivatives.

Data & databases37
B
biomni
biomni
jackspace / claudeskillz

Autonomous biomedical AI agent framework for executing complex research tasks across genomics, drug discovery, molecular biology, and clinical analysis. Use this skill when conducting multi-step biomedical research including CRISPR screening design, single-cell RNA-seq analysis, ADMET prediction, GWAS interpretation, rare disease diagnosis, or lab protocol optimization. Leverages LLM reasoning with code execution and integrated biomedical databases

Data & databases37
B
biopython
biopython
jackspace / claudeskillz

Primary Python toolkit for molecular biology. Preferred for Python-based PubMed/NCBI queries (Bio.Entrez), sequence manipulation, file parsing (FASTA, GenBank, FASTQ, PDB), advanced BLAST workflows, structures, phylogenetics. For quick BLAST, use gget. For direct REST API, use pubmed-database.

Data & databases37
B
biorxiv-database
biorxiv-database
jackspace / claudeskillz

Efficient database search tool for the bioRxiv preprint server. Use this skill to search life sciences preprints by keywords, authors, date ranges, or categories, retrieve paper metadata, download PDFs, or conduct literature reviews.

Productivity37
B
blink-rag
blink-rag
blink-new / blink-plugin

Knowledge base with vector search, document upload, collections, and AI-powered Q&A with citations. Semantic search over uploaded documents.

Data & databases37
B
bwa-mem2-dna-aligner
bwa-mem2-dna-aligner
jaechang-hits / sciagent-skills

Fast short-read DNA aligner for WGS/WES/ChIP-seq. 2× faster BWA-MEM successor; outputs SAM/BAM with read group headers for GATK. Primary plus supplementary records for chimeric reads. Use STAR for RNA-seq splice-aware alignment; Bowtie2 is a comparable alternative.

Data & databases37
C
classify
classify
dyrits / skills

Classify text against custom labels with classifier.dev. Use to triage, filter, bucket, or route many items before reading them, or when the user requests an API verdict.

Data & databases37
C
clay-gtm-outbound
clay-gtm-outbound
realjaymes / marketingagentskills

Designs and optimizes Clay-powered GTM workflows for prospecting, signal detection, outbound email sequences, enrichment pipelines, and account-based marketing. Use when the user mentions 'Clay,' 'GTM engineering,' 'prospecting,' 'signal detection,' 'enrichment,' 'Claygent,' 'outbound automation,' or wants to build Clay tables or integrate with sequencing tools like Lemlist, Smartlead, or Instantly.

Marketing & growth37
C
clickhouse
clickhouse
dobroslavradosavljevic / skills

Build, review, debug, configure, migrate, teach, or plan ClickHouse analytics work from TypeScript with current docs and a full usage guide. Use for @clickhouse/client, @clickhouse/client-web, createClient, query, insert, command, exec, JSONEachRow, query_params, streaming, MergeTree family, ORDER BY/PARTITION BY, materialized views, projections, async_insert, FINAL, lightweight deletes and updates, 26.x server upgrades, ClickHouse Cloud HTTPS, system.query_log, and TS schema/ingest patterns. TypeScript/Node SDKs only — not Python/Go/Java clients.

Data & databases37
C
clinpgx-database
clinpgx-database
jaechang-hits / sciagent-skills

Query the ClinPGx (formerly PharmGKB) REST API plus the CPIC PostgREST companion API for pharmacogenomic clinical annotations, CPIC/DPWG dosing guidelines, gene-drug pairs, variant-drug associations, FDA/EMA drug labels, and PGx pathways. Two-host architecture: api.clinpgx.org for annotation records, api.cpicpgx.org for genotype→recommendation lookups. No auth. For germline pathogenicity use clinvar-database; for somatic cancer PGx use cosmic-database or opentargets-database; for drug bioactivity use chembl-database-bioactivity.

Data & databases37
C
convert-to-markdown
convert-to-markdown
gupsammy / claudest

Use this skill when the user asks to "convert this page to markdown", "extract this webpage", "save this article", "grab content from URL", "get markdown from this link", "scrape this page", provides a URL to extract, or wants clean web content without ads and clutter

Documents37
C
corbits-marketplace
corbits-marketplace
moonpay / skills

Paid API marketplace for AI agents via Corbits. Search hundreds of premium API proxies, call them with automatic USDC micropayments (x402 protocol), and fund the payment wallet with MoonPay. Use when the user wants to access paid data APIs (crypto prices, weather, financial data, etc.) with per-request billing and no API key management.

Agent workflows37
C
csv-data-analysis
csv-data-analysis
eosphoros-ai / db-gpt

This skill should be used when users need to analyze CSV or Excel files, understand data patterns, generate statistical summaries, or create data visualizations. Trigger keywords include "analyze CSV", "analyze Excel", "data analysis", "CSV analysis", "Excel analysis", "data statistics", "generate charts", "data visualization", "分析CSV", "分析Excel", "数据分析", "CSV分析", "Excel分析", "数据统计", "生成图表", "数据可视化".

Data & databases37
D
dask
dask
jackspace / claudeskillz

Parallel/distributed computing. Scale pandas/NumPy beyond memory, parallel DataFrames/Arrays, multi-file processing, task graphs, for larger-than-RAM datasets and parallel workflows.

Data & databases37
D
data-backup
data-backup
delphine-l / claude_global

Smart automated backup system with skill integration. Detects project type (notebooks, data files, HackMD docs) and applies appropriate cleanup before backup. Rolling daily backups, compressed milestones, and CHANGELOG tracking.

Data & databases37
D
data-context-extractor
data-context-extractor
w95 / awesome-claude-corporate-skills

Generate or improve a company-specific data analysis skill by extracting tribal knowledge from analysts. BOOTSTRAP MODE - Triggers: "Create a data context skill", "Set up data analysis for our warehouse", "Help me create a skill for our database", "Generate a data skill for [company]" → Discovers schemas, asks key questions, generates initial skill with reference files ITERATION MODE - Triggers: "Add context about [domain]", "The skill needs more info about [topic]", "Update the data skill with [metrics/tables/terminology]", "Improve the [domain] reference" → Loads existing skill, asks targeted questions, appends/updates reference files Use when data analysts want Claude to understand their company's specific data warehouse, terminology, metrics definitions, and common query patterns

Data & databases37
D
data-pipeline-architect
data-pipeline-architect
wyattowalsh / agents

Analyzes and designs batch and streaming data pipelines with contracts, lineage, reliability, and cost controls. Use for ingestion and transformation systems. NOT for ad-hoc analysis or schema design.

Data & databases37
D
data-pipeline-auditor
data-pipeline-auditor
jurgendn / agent-skills

Check preprocessing, splits, leakage, augmentation, label noise, and distribution mismatch before blaming the model. Use for new datasets, suspicious gains, brittle generalization, unexplained train-test gaps, or any result that may be caused by data pipeline bugs rather than model behavior.

Data & databases37
D
data-pipelines
data-pipelines
alexanderstephenthompson / claude-hub

ETL patterns, orchestration, and data pipeline architecture

Data & databases37
D
database-design
eddiebe147 / claude-settings

Database schema design, optimization, and migration patterns for PostgreSQL, MySQL, and NoSQL databases. Use for designing schemas, writing migrations, or optimizing queries.

Data & databases37
D
database-schema-design
database-schema-design
omer-metin / skills-for-antigravity

World-class database schema design - data modeling, migrations, relationships, and the battle scars from scaling databases that store billions of rowsUse when "database schema, data model, migration, prisma schema, drizzle schema, create table, add column, foreign key, primary key, uuid, auto increment, soft delete, normalization, denormalization, one to many, many to many, junction table, polymorphic, enum type, index strategy, database, schema, migration, data-model, prisma, drizzle, typeorm, postgresql, mysql, sqlite" mentioned

Data & databases37
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New to MCP?

From what the protocol is to installing your first server, these answers cover most first questions.

An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.