The library
Everything we index — ranked by what works, never by stars.
forSalesMarketingHRFinanceLegalOpsProductEngineeringDataProductivitySupportsetup≤ plug & play≤ + a key≤ multi-tool
● works · ● untested / no effect · ● hurts — every rank is measured against a no-skill baseline
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Organize and prioritize tasksskillProductivityL1
todo-management · Organizing personal or team tasks with deadlines and categorization.
Analyze harmonic structure and voicingskillL1
harmony-analysis · Analyzing chord progressions, voice leading rules, and harmonic function in tonal music.
Orchestrate and arrange musicskillL1
orchestration · Choosing instruments, arranging for specific ensemble sizes, or analyzing timbral effects.
Build AI skills from any sourceskillEngineeringL2
skill-builder · Converting documentation, repos, PDFs, or videos into machine-readable AI skills.
Install and update skillsskillEngineeringL2
installing-skills · Batch-installing or updating skill collections from public GitHub repositories.
Analyze rhythm and meter patternsskillL1
rhythm-meter · Identifying meter in music, analyzing complex rhythms, or studying non-Western time signatures.
Run pre-release safety checksskillEngineeringL1
2562-safety-checklist_b6614ad2 · Ensuring standard safety procedures are followed before critical operations.
Identify birds by sight and soundskillProductivityL1
bird-observation · Recording bird sightings with species, date, location, and behavioral notes.
Read and map ecosystemsskillProductivityL1
ecosystem-mapping · Understanding relationships between organisms, food chains, and environmental interactions.
Build Angular 17+ applicationsskillEngineeringL2
angular-architect · Designing scalable Angular applications with clear module and service separation.
Detect radar signalsskillL1
15-radar-signals-skill · Detecting and interpreting radar echoes, distinguishing noise from valid signals.
Identify species in the fieldskillL1
field-identification · Identifying organisms in the field using morphological features and behavior.
Design REST and GraphQL APIsskillEngineeringProductL1
api-designer · Creating consistent, well-documented REST APIs with clear contract definitions.
Map user journeys and touchpointsskillProductMarketingL1
journey-map · Visualizing customer experience across touchpoints and identifying improvement opportunities.
Build nature observation habitsskillProductivityL1
nature-journaling · Recording long-term observations of flora, fauna, and ecological changes over time.
Design system architectureskillEngineeringL1
architecture-designer · When you need formal ADRs and multi-stakeholder architectural decisions for distributed systems.
Convert markdown to PDF reportsskillOpsL2
pandic-office · When you have Markdown content and need professional PDF or Word output documents.
Track species behavior patternsskillDataL1
species-interaction-tracking · When studying what a species actually does over time rather than just identifying it.
Manage Jira and Confluence at scaleskillOpsL2
atlassian-mcp · When you need programmatic access to Jira and Confluence beyond manual UI interaction.
Classify organisms scientificallyskillL1
taxonomic-classification · When you need to place an organism in its formal hierarchy or reconcile its scientific name.
Design resilience chaos experimentsskillEngineeringL2
chaos-engineer · When you want to proactively discover system failure modes and resilience gaps before production incidents.
Evaluate nutrition science disputesskillDataL1
contested-claims-in-nutrition · When evaluating nutritional claims with scientific rigor and distinguishing settled from genuinely contested evidence.
Build production CLI toolsskillEngineeringL2
cli-developer · When building command-line tools that need consistent flags, shell completions, and fast startup.
Measure actual food consumptionskillDataL1
dietary-assessment · When you need to choose the right dietary measurement method (24-h recall, FFQ, diary, biomarker) for your question.
Teach healthy eating to childrenskillHRL1
feeding-pedagogy · When guiding children to develop healthy eating habits and positive food relationships.
Generate API and code documentationskillEngineeringL1
code-documenter · When you need generated, validated technical documentation from your codebase.
Configure worker concurrency limitsskillEngineeringL2
435-queue-concurrency_5eb81f48 · When you need expert knowledge in 435 queue concurrency_5eb81f48.
Navigate food policy and regulationskillLegalL1
food-policy-and-politics · When you need to understand how nutrition science becomes dietary guidance and industry influence.
Find bugs and security flaws in codeskillEngineeringL1
code-reviewer · When you need systematic code review for bugs, security, and quality improvements.
Build cohesive UI color systemsskillProductL1
palette-stylist · When you need cohesive, accessible color systems from reference images and vibes.
Understand nutrient metabolism pathwaysskillDataL1
nutrient-metabolism · When you need detailed biochemistry of how your body processes specific nutrients.
Optimize modern C++ applicationsskillEngineeringL2
cpp-pro · When you need expert C++ development with modern language features and optimizations.
Master nutrition science fundamentalsskillDataL1
nutrition-science-foundations · When you need foundational knowledge of how macronutrients, micronutrients, and digestion work.
Build C# .NET applications and APIsskillEngineeringL2
csharp-developer · When building C# applications with clean architecture and async patterns.
Plan resilience testing and game daysskillEngineeringL2
chaos-engineering · Validating infrastructure resilience before production relies on a service.
Optimize SQL queries and indexesskillEngineeringL2
database-optimizer · Diagnosing 100+ ms query latency when generic optimization doesn't pinpoint the bottleneck.
Engineer features from survey dataskillDataL2
skillx_class_aware_c2__feature_engineering__SKILL · Preparing respondent-keyed data for difference-in-differences causal analysis.
Run incident response and postmortemsskillOpsL1
incident-response · Coordinating response to SEV1/SEV2 incidents when multiple teams need synchronized action.
Isolate and resolve bugs systematicallyskillEngineeringL1
debugging-wizard · When stack traces don't immediately reveal the bug and multiple independent-seeming changes coincide.
Set up monitoring dashboards and alertingskillOpsL2
monitoring-observability · Gaining the three pillars (logs/metrics/traces) when a single monitoring signal is insufficient.
Plan and execute releases safelyskillOpsL2
release-management · Minimizing blast radius when deploying high-traffic or stateful services.
Build Django web applications and APIsskillEngineeringL2
django-expert · Scaffolding a production Django API with query optimization and permission constraints.
Define service reliability and reduce toilskillOpsL2
sre-patterns · When service reliability is ad-hoc and alert fatigue prevents visibility into true availability.
Build .NET cloud-native microservicesskillEngineeringL2
dotnet-core-expert · Scaffolding a .NET Core service when C# and strong typing are organizational standards.
Identify and remove business constraintsskillL1
constraint-drilling · Sharpening a broad research hypothesis into testable subclaims.
Build high-performance async Python APIsskillEngineeringL2
fastapi-expert · When a Python service needs sub-100ms latency and high concurrency that sync frameworks can't match.
Write detailed feature specificationsskillProductL1
feature-forge · When baseline model accuracy plateaus and feature engineering is the remaining leverage.
Manage Notion pages and databasesskillOpsL2
notion-2 · Agents needing read-modify-append workflows on Notion databases without destructive rewrites.
Build cross-platform mobile appsskillEngineeringL2
flutter-expert · Cross-platform mobile development where reusable const widgets and scoped state management (Riverpod) reduce rebuilds and improve frame rates.
Build concurrent Go microservicesskillEngineeringL2
golang-pro · Concurrent systems requiring fine-grained goroutine lifecycle, bounded resource pools, and time-bounded execution with proper cancellation.