The library
Everything we index — ranked by what works, never by stars.
forSalesMarketingHRFinanceLegalOpsProductEngineeringDataProductivitySupportsetup≤ plug & play≤ + a key≤ multi-tool
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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.
Master market analysis fundamentalsskillL1
microeconomics · Use when implementing microeconomics 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.
Analyze DC and AC circuitsskillEngineeringL1
circuit-analysis-dc-ac · Use when implementing circuit-analysis-dc-ac 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.
Design semiconductor componentsskillEngineeringL1
semiconductor-device-physics · Predicting transistor behavior across temperature and supply variations for analog design
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
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
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.
Analyze environmental geography and changeskillL1
environmental-geography · Identifying which environmental changes (climate vs. land use vs. water stress) dominate risk in a specific region for a specific stakeholder.
Plan field research and data collectionskillL1
fieldwork-methods · Ground-truthing remote sensing, collecting data on unmeasured phenomena (social practice, soil chemistry), or understanding local context that maps cannot capture.
Analyze territorial and geopolitical conflictskillL1
geopolitics · Understanding why territorial disputes persist or how borders structure economic/security interests when geographic location is strategically binding.
Analyze human activities and spatial patternsskillL1
human-geography · Explaining why cities cluster where they do, why migration follows particular routes, or why cultural traits concentrate in certain regions.
Remove AI writing patterns from textskillProductivityMarketingL1
stop-slop · Cleaning published or client-facing prose when writer defaults to AI-like patterns (em-dashes, vague declaratives, binary contrasts, narrator voice).
Understand Earth systems and landform processesskillL1
physical-geography · Forecasting how landscapes respond to tectonic uplift or climate change when physical processes (erosion, isostasy, ocean circulation) dominate.
Log friction, wins, and decisions during sessionsskillProductivityL1
session-observatory-live · Debugging production or long-running sessions when reproducing locally is infeasible.
Generate atomic CSS on-demandskillEngineeringL1
unocss · Reducing CSS bundle size when utility-first design adopted and no dynamic styling needed.
Learn GSD commands and workflowsskillEngineeringL1
gsd-onboard · Reducing time-to-first-contribution and catching setup failures before developer time is wasted.
Verify GSD artifact consistencyskillOpsL1
gsd-preflight · Preventing mergeable but broken code from reaching CI/production.
Trace decisions through planning artifactsskillOpsL1
gsd-trace · Recovering decision history and requirement evolution when project docs are scattered.
Route to correct GSD phaseskillOpsL1
gsd-workflow · Disambiguating natural-language project requests and routing to the right GSD command.
Clean up technical debtskillEngineeringL1
garbage-collection · Identifying highest-leverage tech-debt cleanups with mechanical scoring rather than ad-hoc judgment.
Analyze historical causationskillL1
causation-consequence · Separating immediate triggers from underlying structural causes in historical analysis.
Identify temporal turning pointsskillL1
continuity-change · Assessing whether a historical moment represents genuine transformation or surface disruption.
Integrate multiple historical perspectivesskillL1
historical-perspectives · Reconstructing how historical actors understood their own world without imposing modern bias.
Analyze historiographical schoolsskillL1
historiography · Evaluating why different historians reach different conclusions about the same events.
Construct evidence-based historical argumentsskillL1
oral-history · Constructing evidence-based historical arguments with explicit thesis, evidence, and counterargument.
Evaluate historical source reliabilityskillL1
source-analysis · Interrogating a document's authorship, purpose, and reliability before deploying it as evidence.
Draft Johnny.Decimal policy evolution reportskillOpsL1
johnny-decimal-source-evolution · Interrogating a document's authorship, purpose, and reliability before deploying it as evidence.
Master fundamental cooking techniquesskillProductivityL1
food-technique-fundamentals · Substituting and improvising techniques rather than following recipes rigidly.
Build household budget and savings planskillFinanceL1
household-economics-and-budgeting · Automating or structuring a commonly needed workflow.
Normalize business process logicskillOpsL1
BLL.skill · Automating or structuring a commonly needed workflow.
Design household operating systemsskillProductivityL1
household-systems-design · Automating or structuring a commonly needed workflow.
Update project documentationskillEngineeringL1
update-docs · Automating or structuring a commonly needed workflow.
Plan weekly nutrition and mealsskillProductivityL1
nutrition-and-meal-planning · Automating or structuring a commonly needed workflow.
Teach household skills across generationsskillProductivityL1
sustainable-household-pedagogy · Automating or structuring a commonly needed workflow.
Optimize household work motion and timeskillOpsL1
time-and-motion-in-the-home · Automating or structuring a commonly needed workflow.
Analyze cross-linguistic grammar patternsskillL1
grammar-syntax · Comparing grammar systems across languages, diagnosing learner errors rooted in L1 transfer, teaching grammatical concepts via typological contrast
Learn languages with strategic methodsskillProductivityL1
language-learning-strategies · Designing self-directed language programs from scratch or rescuing stuck learners by repositioning strategy selection based on their actual phase
Master phonetic articulation and sound perceptionskillProductivityL1
phonetics-phonology · Teaching pronunciation at the system level, debugging intelligibility problems rooted in phonetic misconfiguration, or designing ear training that targets language-specific phoneme contrasts
Master pragmatic communication across culturesskillProductivityL1
pragmatics-communication · Building conversational fluency beyond grammar by teaching learners to decode hidden meanings, adjust formality, and navigate face-saving in their target culture
Master translation and interpretation techniquesskillProductivityL1
translation-interpretation · High-stakes translation (legal, literary, technical) where equivalence theory discipline prevents the 'invisible translator' problem of over-domestication