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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Analyze data with statistical modelsskillDataProductL2
statistical-modeling · When fitting models, testing hypotheses, or selecting among competing statistical explanations.
Write professional commit messagesskillEngineeringL1
beautiful-commits · When committing changes or writing commit messages.
Review code for quality and bugsskillEngineeringL1
code-review · When reviewing prs or checking code quality.
Make better decisions fasterskillL1
decision-framework · When evaluating options, root causes, or prioritizing.
Generate comprehensive test casesskillEngineeringProductL1
test-generator · When writing tests or creating test suites.
Write type-safe TypeScriptskillEngineeringL1
typescript-patterns · When writing typescript, fixing type errors, or working with generics.
Scan skills for security threatsskillEngineeringOpsL1
scan-skills · When this is the appropriate approach for the task.
Understand algorithmic bias and opacityskillProductEngineeringL1
algorithmic-awareness · When a learner needs to think critically about why particular content reached them.
Search codebases without loading filesskillEngineeringL2
skill · When you want to inspect the actual code rather than a synthesized answer.
Reason about how digital systems workskillEngineeringProductL1
computational-literacy · When a learner needs to build a mental model of computing rather than memorize menu paths.
Write clean, layered codeskillEngineeringL1
skill · Building premium, role-gated ITSM systems for universities without admin panel bloat.
Manage digital privacy and securityskillOpsLegalL1
data-privacy · Helping learners make informed decisions about what personal data to share and with whom.
Participate professionally onlineskillOpsSalesL1
digital-citizenship · Teaching learners to participate responsibly by understanding digital footprint persistence and community power dynamics.
Verify information credibilityskillL1
information-evaluation · Quickly assessing whether online information deserves belief before sharing or relying on it.
Create branded videos with RemotionskillMarketingL2
SKILL · Producing animated explainer videos, product demos, and branded content at scale without design bloat.
Produce accessible digital mediaskillMarketingProductL2
media-creation · Moving learners from media consumers to active producers by grounding craft in accessibility and attribution.
Apply behavioral economics insightsskillProductSalesL1
behavioral-economics · Explaining why people make systematic economic errors and where policy nudges are most effective.
Understand economic developmentskillL1
development-economics · Explaining why countries stay poor and what policies unlock structural transformation.
Master international trade economicsskillL1
international-trade · Explaining why countries specialize and who wins/loses from trade and tariff policy.
Plan and run high-converting webinarsskillMarketingL1
webinar-marketing · Building webinar funnels that fill with right people, keep them watching, and convert to pipeline.
Analyze macroeconomic policy impactsskillL1
macroeconomics · Use when implementing macroeconomics is more cost/time-effective than generic alternative.
Build Android APK releasesskillEngineeringL2
SKILL · Use when implementing SKILL is more cost/time-effective than generic alternative.
Master market analysis fundamentalsskillL1
microeconomics · Use when implementing microeconomics is more cost/time-effective than generic alternative.
Delegate code work to Claude CodeskillEngineeringL2
collaborating-with-claude-code · Use when implementing collaborating-with-claude-code is more cost/time-effective than generic alternative.
Evaluate regulatory and tax policyskillLegalL1
public-policy · Use when implementing public-policy is more cost/time-effective than generic alternative.
Extract and monitor YouTube contentskillMarketingL2
youtube-full · Use when implementing youtube-full is more cost/time-effective than generic alternative.
Analyze DC and AC circuitsskillEngineeringL1
circuit-analysis-dc-ac · Use when implementing circuit-analysis-dc-ac is more cost/time-effective than generic alternative.
Route agents in Hermes orchestratorskillEngineeringL2
hermes-acp-orchestrator · Use when implementing hermes-acp-orchestrator is more cost/time-effective than generic alternative.
Design digital logic circuitsskillEngineeringL1
digital-logic-design · Use when implementing digital-logic-design is more cost/time-effective than generic alternative.
Automate desktop app interactionsskillOpsL2
gui-agent · Automating repetitive GUI workflows and desktop testing when no API is available
Convert WeChat posts to MarkdownskillMarketingL2
wechat-to-md · Archiving WeChat public account content for knowledge base integration
Design semiconductor componentsskillEngineeringL1
semiconductor-device-physics · Predicting transistor behavior across temperature and supply variations for analog design
Build and optimize digital filtersskillEngineeringL2
signal-processing-dsp-basics · Choosing ADC parameters and filter designs to avoid aliasing in embedded systems
Run parallel multi-agent researchskillProductL2
infinite-gratitude · Comprehensive research on a topic by parallelizing across multiple discovery angles
Measure and troubleshoot electronicsskillEngineeringL2
test-and-measurement · Systematic fault-finding on prototype circuits before design review
Manage product design cyclesskillProductL1
design-process · Defining complex engineering problems with multiple competing objectives before design
Review engineering safety decisionsskillOpsL1
engineering-ethics · Supporting engineers in dissenting against unsafe designs when management disagrees
Analyze structural and material stressskillEngineeringL2
structural-analysis · Verifying that a structure can safely carry its design loads before fabrication
Automate Windows desktop workflowsskillOpsL2
powerskills · Navigating professional conflicts where explicit hierarchy or dependency exists
Manage complex system lifecyclesskillOpsL2
systems-engineering · Managing aerospace/automotive/infrastructure projects with hundreds of interdependent requirements
Recover previous Codex sessionskillEngineeringL1
codexgo · Fast analytics on columnar Parquet data without loading entire files into memory
Document technical specifications and standardsskillEngineeringL1
technical-communication · Creating engineering procedures and design documentation for long-term reference and training
Understand biogeochemical cycles and anthropogenic impactsskillL1
biogeochemical-cycles · Predicting nutrient availability changes or carbon sequestration potential under climate scenarios
Query Flight SQL servers with Arrow CLIskillEngineeringDataL2
arrow-cli · Quick exploration and transformation of Parquet files in data pipelines
Analyze climate physics and attribution scienceskillL1
climate-science · Projecting climate impacts for a specific region to support adaptation planning
Model ecosystem energy flows and species interactionsskillL1
ecosystem-dynamics · Assessing extinction risk or recovery potential under climate or habitat change
Assess environmental justice and equity impactsskillLegalOpsL1
environmental-justice · Supporting frontline communities in demanding equitable pollution control and remediation
Evaluate anthropogenic environmental impactsskillOpsDataL1
human-impact-assessment · Forecasting extinction risk or habitat loss from proposed development when receptor sensitivity is quantifiable.
Design sustainable systems and interventionsskillOpsProductL1
sustainability-design · Evaluating trade-offs between energy source, land use, and social outcomes when strong sustainability constraints (climate, pollinators) are binding.
Create maps and perform spatial analysisskillDataOpsL2
cartography-gis · Creating area-accurate or direction-accurate maps when projection distortion directly affects decision (navigation vs. density comparison).