API Dev
API design, REST, GraphQL
choosing-streamlit-selection-widgets
by streamlit
Choosing the right Streamlit selection widget. Use when deciding between radio buttons, selectbox, segmented control, pills, or other option selection widgets. Helps pick the right widget for the number of options and selection type.
telnyx-10dlc-go
by team-telnyx
Register brands and campaigns for 10DLC (10-digit long code) A2P messaging compliance in the US. Manage campaign assignments to phone numbers. This skill provides Go SDK examples.
ffuf-web-fuzzing
by trailofbits
Expert guidance for ffuf web fuzzing during authorized penetration testing. Covers directory discovery, subdomain enumeration, parameter fuzzing, authenticated fuzzing with raw requests, auto-calibration, and result analysis. Use when running ffuf scans, analyzing ffuf output, or building fuzzing strategies for web targets.
openai-sentry
by trailofbits
Use when the user asks to inspect Sentry issues or events, summarize recent production errors,
regression-api-contract
by jmagly
@.claude/rules/executable-feedback.md
regression-baseline
by jmagly
@agentic/code/frameworks/sdlc-complete/agents/test-engineer.md
gnomad-database
by jaechang-hits
"Query gnomAD v4 population variant frequencies via GraphQL API. Retrieve allele counts and frequencies stratified by ancestry group (AFR, AMR, EAS, NFE, SAS, FIN, ASJ, MID), gene-level constraint metrics (pLI, LOEUF, missense z-score), and read depth coverage. Identify variants with low population frequency or under evolutionary constraint. For clinical pathogenicity classifications use clinvar-database; for GWAS associations use gwas-database."
dbsnp-database
by jaechang-hits
"Query NCBI dbSNP for SNP records by rsID, gene, or genomic region via E-utilities (esearch, efetch, epost) and NCBI Variation Services REST API. Retrieve allele data, minor allele frequency, variant class (SNV, indel, MNV), clinical significance links, and cross-database IDs (ClinVar, dbVar, 1000G). Free access; 3 req/sec without API key, 10 req/sec with key. For clinical pathogenicity classifications use clinvar-database; for population frequencies use gnomad-database."
cosmic-database
by jaechang-hits
"Query COSMIC (Catalogue Of Somatic Mutations In Cancer) for cancer somatic mutations, gene census data, mutational signatures, drug resistance variants, and cancer gene annotations. REST API v3.1 supports gene/sample/variant queries. Free registration required. For germline clinical variants use clinvar-database; for drug-target data use opentargets-database or chembl-database-bioactivity."
ena-database
by jaechang-hits
"European Nucleotide Archive (ENA) REST API access for genomic sequences, raw reads, assemblies, and annotations. Portal API search with query syntax, Browser API retrieval (XML/FASTA/EMBL), file reports for FASTQ/BAM download URLs, taxonomy queries, cross-references. For multi-database Python queries prefer bioservices; for NCBI-specific queries use pubmed-database or Biopython Entrez."
ensembl-database
by jaechang-hits
"Query Ensembl REST API for gene/transcript/variant annotations across 300+ species. Retrieve gene info by symbol/ID, sequence, cross-references (HGNC, RefSeq, UniProt), variants, regulatory features, comparative genomics. For bulk local access use pyensembl; for pathway lookups use kegg-database or reactome-database."
gwas-database
by jaechang-hits
"NHGRI-EBI GWAS Catalog REST API for SNP-trait associations from published genome-wide association studies. Query studies, associations, variants, traits, genes, and summary statistics. Build polygenic risk score candidates, analyze variant pleiotropy, download summary statistics for Manhattan plots. No authentication required."
cbioportal-database
by jaechang-hits
"Access TCGA and other cancer genomics datasets via cBioPortal REST API. Retrieve somatic mutations, copy number alterations, gene expression profiles, and clinical data (survival, stage, treatment) for thousands of cancer studies. Use for tumor mutation burden analysis, oncoprint queries, and survival analysis. For population variant frequencies use gnomad-database; for drug-gene interactions use dgidb-database."
cartographer
by kingbootoshi
Maps and documents codebases of any size by orchestrating parallel subagents. Creates docs/CODEBASE_MAP.md with architecture, file purposes, dependencies, and navigation guides. Updates CLAUDE.md with a summary. Use when user says "map this codebase", "cartographer", "/cartographer", "create codebase map", "document the architecture", "understand this codebase", or when onboarding to a new project. Automatically detects if map exists and updates only changed sections.
mapbox-google-maps-migration
by mapbox
Migration guide for developers moving from Google Maps Platform to Mapbox GL JS, covering API equivalents, pattern translations, and key differences
labarchive-integration
by jimmc414
"Electronic lab notebook API integration. Access notebooks, manage entries/attachments, backup notebooks, integrate with Protocols.io/Jupyter/REDCap, for programmatic ELN workflows."
gene-database
by jimmc414
"Query NCBI Gene via E-utilities/Datasets API. Search by symbol/ID, retrieve gene info (RefSeqs, GO, locations, phenotypes), batch lookups, for gene annotation and functional analysis."
alphafold-database
by jimmc414
"Access AlphaFold's 200M+ AI-predicted protein structures. Retrieve structures by UniProt ID, download PDB/mmCIF files, analyze confidence metrics (pLDDT, PAE), for drug discovery and structural biology."
clinicaltrials-database
by jimmc414
"Query ClinicalTrials.gov via API v2. Search trials by condition, drug, location, status, or phase. Retrieve trial details by NCT ID, export data, for clinical research and patient matching."
datacommons-client
by jimmc414
Work with Data Commons, a platform providing programmatic access to public statistical data from global sources. Use this skill when working with demographic data, economic indicators, health statistics, environmental data, or any public datasets available through Data Commons. Applicable for querying population statistics, GDP figures, unemployment rates, disease prevalence, geographic entity resolution, and exploring relationships between statistical entities.
workos
by workos
"Identify which WorkOS skill to load based on the user's task. Covers AuthKit, SSO, RBAC, migrations, and all API references."
async-rust
by wcygan
Async Rust and Tokio ecosystem expert. Provides idiomatic patterns, architectural guidance, and code review for async Rust code using tokio, futures, bytes, tracing, tonic, hyper, tower, axum, tokio-stream, and pin-project. Covers runtime internals, cancellation safety, graceful shutdown, channel selection, shared state, backpressure, structured concurrency, error handling, Tower middleware, stream processing, and performance tuning. Also identifies async footguns (blocking the runtime, holding locks across .await, silent task panics, accidental cancellation) and suggests fixes. Use when writing async Rust, debugging async issues, reviewing async code, choosing between spawn/join/select, designing channel topologies, implementing graceful shutdown, or learning how futures, Pin, and the Tokio runtime work under the hood. Keywords: async, await, tokio, futures, spawn, select, join, channels, streams, pin, tower, tonic, hyper, axum, tracing, bytes, cancellation, runtime, backpressure, graceful shutdown.
observe-whatsapp
by gokapso
"Observe and troubleshoot WhatsApp in Kapso: debug message delivery, inspect webhook deliveries/retries, triage API errors, and run health checks. Use when investigating production issues, message failures, or webhook delivery problems."
clean-ddd-hexagonal
by ccheney
Proactively apply when designing APIs, microservices, or scalable backend structure. Triggers on DDD, Clean Architecture, Hexagonal, ports and adapters, entities, value objects, domain events, CQRS, event sourcing, repository pattern, use cases, onion architecture, outbox pattern, aggregate root, anti-corruption layer. Use when working with domain models, aggregates, repositories, or bounded contexts. Clean Architecture + DDD + Hexagonal patterns for backend services, language-agnostic (Go, Rust, Python, TypeScript, Java, C#).