Research profitable products to sell on eBay. Analyze completed listings, sell-through rates, average selling prices, competition density, and seasonal demand patterns.

Etsy pricing — cost calculation, competitor pricing, perceived value, shipping cost integration, sales and coupons

Amazon profit margin calculator for sellers. Calculate cost breakdowns, profit margins, break-even points, and get pricing recommendations. Supports single product analysis and batch calculations. Input product cost, shipping, FBA fees, and get instant profitability analysis. No API key required. Use when: (1) evaluating new product profitability before sourcing, (2) diagnosing existing product margins, (3) adjusting pricing strategy, (4) analyzing multiple SKUs at once.

Deterministic workflow to download MATLAB Package Manager (mpm) and install MathWorks products from the OS command line with consistent, repeatable behavior. Use when installing MATLAB, Simulink, toolboxes, or support packages via command line, or setting up scripted installations for CI/CD, containers, or fleet provisioning.

Calculate line-of-sight and road distances between two cities using free OpenStreetMap services.

Calculate construction costs using DDC CWICR resource-based methodology. Break down costs into labor, materials, equipment with transparent pricing.

Calculate risk-adjusted cost estimates using CWICR data. Apply contingencies, Monte Carlo simulation, and probability distributions to cost estimates.

Calculate material waste factors and losses using CWICR norms. Apply waste percentages, cutting losses, and spillage factors to material quantities.

Detect anomalies and outliers in construction data: unusual costs, schedule variances, productivity spikes. Statistical and ML-based detection methods.

Calculate carbon footprint of construction projects. Estimate CO2 emissions from materials, transportation, and construction processes using emission factors databases.

Calculate embodied carbon and lifecycle emissions for construction materials and projects. Support sustainable design decisions with carbon data.

>

>

Explain sales commission calculations, resolve discrepancies, and model compensation scenarios for quota planning

> "Invert, always invert." Apply Carl Jacobi's mathematical principle and Charlie Munger's investing wisdom to solve problems by thinking backward from failure.

Master automated billing systems including recurring billing, invoice generation, dunning management, proration, and tax calculation.

Estimate AI-assisted and hybrid human+agent development work with research-backed PERT statistics and calibration feedback loops

Codified expertise for quality control, non-conformance investigation, root cause analysis, corrective action, and supplier quality management in regulated manufacturing.

Search and retrieve preprints from arXiv via the Atom API. Use this skill when searching for papers in physics, mathematics, computer science, quantitative biology, quantitative finance, statistics, electrical engineering, or economics by keywords, authors, arXiv IDs, date ranges, or categories.

Automate Google Maps tasks via Rube MCP (Composio): geocoding, directions, place search, and distance calculations. Always search tools first for current schemas.

Supervised and unsupervised learning, bias-variance tradeoff, cross-validation, decision trees, ensemble methods, neural network fundamentals, and the practitioner's workflow from problem framing through deployment. Covers classification, regression, clustering, dimensionality reduction, regularization, hyperparameter tuning, and evaluation metrics. Use when building predictive models, selecting algorithms, or understanding the machine learning pipeline.

Catalog of informal fallacies with definitions, canonical examples, and detection heuristics. Covers relevance fallacies (ad hominem, straw man, red herring, appeal to authority, appeal to emotion), presumption fallacies (false dichotomy, complex question, begging the question), ambiguity fallacies (equivocation, amphiboly, accent), causal fallacies (post hoc, slippery slope, correlation-causation), and statistical fallacies (hasty generalization, cherry-picking). Use when evaluating arguments for rhetorical or informal reasoning errors.

Mathematical proof is the oldest and most rigorous form of argumentation humans have developed. Its rigor comes from logic: every legitimate step in a proof must correspond to a rule of inference in s

Symbolic manipulation, equation solving, and algebraic structures for mathematical reasoning. Covers distributive law, factoring, completing the square, linear through polynomial equation solving, systems of equations (substitution, elimination, Gaussian elimination, matrix methods), algebraic structures (groups, rings, fields), modular arithmetic, polynomial theory, and inequalities. Use when solving equations, simplifying expressions, working with algebraic structures, or performing symbolic manipulation.

Conjecture generation, sequence analysis, and experimental mathematics for mathematical discovery. Covers sequence analysis (OEIS lookups, recurrence relations, generating functions), pattern detection methods (finite differences, ratio analysis, modular patterns), conjecture generation workflow, classical integer sequences (Fibonacci, Catalan, partition numbers, Bernoulli numbers), combinatorial identities, the probabilistic method (Erdos, expected value arguments, Lovasz Local Lemma), AI-assisted discovery (FunSearch, Ramanujan Machine), and confidence calibration with cautionary tales (Mertens conjecture, Polya conjecture). Use when discovering patterns, analyzing sequences, generating conjectures, or working with combinatorial identities.

Proof writing and verification techniques for mathematical reasoning. Covers 13 proof strategies with canonical worked examples — direct, contrapositive, contradiction, cases, WLOG, vacuous/trivial, biconditional, counterexample, existence (constructive and non-constructive), uniqueness, induction (weak, strong, structural), pigeonhole/double-counting, and diagonal argument/invariants. Use when writing, verifying, or selecting proof strategies for any mathematical claim.

Metacognition is thinking about your thinking. In problem solving, it is the supervisor process that interrupts execution to ask: "Am I still on the right track? Is my current activity the best use of

Most root cause analysis is qualitative — you interview people, draw diagrams, write narratives. That's necessary but insufficient for systems where you have rich observational data and need defensibl

Modeling relationships between variables using regression. Covers simple linear regression, multiple regression, polynomial regression, logistic regression, model fitting (least squares, maximum likelihood), residual analysis, model diagnostics, R-squared, adjusted R-squared, multicollinearity, variable selection, and the Box-Jenkins dictum that all models are wrong but some are useful. Use when predicting outcomes, quantifying relationships, building predictive models, or diagnosing model fit.

Pure mathematical structure. Sets, groups, rings, fields, topology — the formal bedrock everything else rests on.

Physical applications of mathematics. Constants, quantum mechanics, measurement — where abstract meets embodied.

Meta-mathematical connections, cross-domain synthesis, and the Complex Plane as a navigational tool. Classifies problems by quadrant (Abstract/Embodied x Logic/Creativity), routes them to relevant domains, and traces dependency chains. Use when classifying mathematical problems across domains, navigating the Complex Plane of Experience, finding cross-domain connections, or building multi-domain solution strategies.

Mathematical verification for physical calculations: unit tracking algebra (exponent maps), PhysicalQuantity pattern for compound units, SI/Imperial mixed-unit handling, Buckingham pi theorem for dimensionless groups, and common engineering dimensionless numbers. Activates for unit verification, dimensional consistency checks, scaling analysis, and calculation validation across all infrastructure domains.

Water-based fluid system design: pipe sizing (Darcy-Weisbach, Hazen-Williams), flow rates, pressure drops, CDU selection for DTC cooling, pump curves, and ASHRAE TC 9.9 water class enforcement. Activates for cooling loop design, plumbing calculations, CDU selection, pump sizing, and hydraulic system validation.

Electrical power distribution design for infrastructure: load calculations (NEC 220), conductor sizing (NEC 310.16), transformer/UPS/PDU selection, redundancy architectures (N through 2N+1), DC distribution, and voltage classes 120V-480V. Activates for electrical load calculations, conductor sizing, power equipment selection, data center power design, and redundancy architecture planning.

This skill traces references to FileMaker objects (fields, scripts, custom functions, layouts, value lists) across an entire solution. It combines a **deterministic Python engine** (`agent/scripts/tra

Control and monitor Xiaomi Mijia smart home devices. Use this skill when the user wants to: 1) Switch device status (on/off, brightness, etc.) 2) List available home devices 3) Run automation scenes 4) Check environmental statistics.

JAXSR is a JAX-based symbolic regression library that discovers interpretable algebraic

Systematic research engine with anti-hallucination safeguards and source quality tiering.

>

>

Add phase to end of current milestone in huntmap

List pending todos and select one to work on

Display project statistics — phases, plans, requirements, git metrics, and timeline

Billing Automation workflow skill. Use this skill when the user needs Master automated billing systems including recurring billing, invoice generation, dunning management, proration, and tax calculation and the operator should preserve the upstream workflow, copied support files, and provenance before merging or handing off.

Billing Automation workflow skill. Use this skill when the user needs Master automated billing systems including recurring billing, invoice generation, dunning management, proration, and tax calculation and the operator should preserve the upstream workflow, copied support files, and provenance before merging or handing off.

data-scientist workflow skill. Use this skill when the user needs Expert data scientist for advanced analytics, machine learning, and statistical modeling. Handles complex data analysis, predictive modeling, and business intelligence and the operator should preserve the upstream workflow, copied support files, and provenance before merging or handing off.

data-scientist workflow skill. Use this skill when the user needs Expert data scientist for advanced analytics, machine learning, and statistical modeling. Handles complex data analysis, predictive modeling, and business intelligence and the operator should preserve the upstream workflow, copied support files, and provenance before merging or handing off.

Progressive Estimation workflow skill. Use this skill when the user needs Estimate AI-assisted and hybrid human+agent development work with research-backed PERT statistics and calibration feedback loops and the operator should preserve the upstream workflow, copied support files, and provenance before merging or handing off.