excel-skills
claudeWrite error-free Excel formulas, use modern LAMBDA and dynamic-array functions, and organise, format and inspect workbooks.
159 skills
Frame ML problems, engineer and select features, train and tune scikit-learn, XGBoost, LightGBM and CatBoost models, cluster and reduce dimensions, validate without leakage, explain models with SHAP, PDP, LIME and counterfactuals, and build forecasting, survival, recommendation, ranking, fraud and uplift models.
Plugin classical-ml-skills from marketplace vector-agentic-skills in MuhammadHusnainAli/vector-agentic-skills. Commands read from the repo's manifest — 18 days ago.
anomaly-detection-model-builderBuild and evaluate anomaly detection for tabular, sensor and transaction data with few or no labels: define the anomaly type (point, contextual, collective), choose detectors (robust z-score/MAD and IQR rules, Mahalanobis with robust covariance, k-NN distance, LOF, Isolation Forest, one-class SVM, P
catboost-model-builderBuild CatBoost models that use its strengths correctly: raw categorical columns as cat_features (ordered target statistics, no manual encoding), text_features, Pool construction with NaN-safe categories, ordered boosting and has_time for temporal data, symmetric (oblivious) trees, overfitting detect
categorical-encoding-selectorChoose and implement the right encoding for every categorical column given the model family and the data: one-hot (with infrequent-level grouping and handle_unknown), ordinal with an explicit order, cross-fitted target encoding (scikit-learn TargetEncoder, CatBoost ordered statistics, category_encod
classification-model-selectorChoose the right classification algorithm for tabular, text or mixed data and prove the choice with a fair bake-off: logistic regression (L2, L1, elastic net), linear SVM, naive Bayes, k-NN, RBF SVM, decision trees, random forest, extra trees, HistGradientBoosting, LightGBM, XGBoost, CatBoost, expla
clustering-algorithm-selectorChoose the right clustering algorithm and check that clustering makes sense at all: cluster tendency (Hopkins statistic with a correlated-features caveat, nearest-neighbour isolation), then k-means / MiniBatchKMeans, Gaussian mixtures with BIC, agglomerative (Ward, average, complete, single) with de
collaborative-filtering-implementerImplement collaborative filtering recommenders that beat popularity: item-based kNN with cosine, Jaccard or asymmetric similarity, shrinkage, neighbourhood size, positive-only or mean-centred rating signals and 'because you liked X' explanations; implicit ALS with confidence weighting, BPR pairwise
counterfactual-explanation-generatorGenerate counterfactual explanations and algorithmic recourse: the smallest realistic change to a row's features that changes the model's decision. Solves exact minimal-cost recourse for linear and logistic models (MAD-scaled L1 cost, immutable features, increase/decrease directions, bounds, integer
cross-validation-strategy-designerDesign the cross-validation scheme that mirrors how a model will be used, and check the folds before trusting any score: StratifiedKFold and repeated CV for i.i.d. data, GroupKFold / StratifiedGroupKFold / LeaveOneGroupOut when entities repeat (customers, patients, devices, sessions), TimeSeriesSpli
dbscan-parameter-tunerTune DBSCAN (and know when to switch to HDBSCAN or OPTICS): choose min_samples from dimensionality and the smallest meaningful group, find eps from the knee of the k-distance curve with a noise-share bracket, grid-search eps x min_samples for stable regions (cluster count that persists across neighb
feature-engineering-idea-generatorGenerate concrete, leakage-aware feature ideas for tabular ML and the pandas code to build them: infer column roles (IDs, entity keys, datetimes incl. unix epochs, years, amounts, counts, proportions, low- and high-cardinality categoricals, codes like zip, lat/lon, free text), then propose date part
feature-importance-reporterProduce honest feature importance reports by computing several methods on held-out data and explaining where they disagree: impurity/gain importance (LightGBM, XGBoost, CatBoost, sklearn MDI), standardised coefficients, permutation importance with repeats and standard deviations, grouped permutation
feature-scaling-advisorDecide whether and how to scale or transform numeric features for a given model: no scaling for trees and gradient boosting, StandardScaler, RobustScaler for outliers, MinMaxScaler and MaxAbsScaler (sparse data), log1p, Box-Cox and Yeo-Johnson PowerTransformer for skew, QuantileTransformer for heavy
feature-selection-analyzerSelect features for tabular ML without fooling yourself: filter methods (missingness, near-zero variance, ID-like columns, univariate out-of-fold AUC / Spearman / mutual information, correlation-based redundancy groups keeping the strongest member), embedded methods (L1/elastic net, tree and GBM imp
feature-store-schema-designerDesign feature store schemas that serve the same features to training and production: entities and join keys, sources with event and created timestamps, feature views grouped by entity and refresh cadence, dtypes, TTLs matched to source cadence, online vs offline stores, freshness SLAs, point-in-tim
fraud-detection-model-designerDesign fraud detection models that survive production: point-in-time velocity and behaviour features per card, account or device (counts and amounts over sliding windows that exclude the current event, time since previous, amount relative to history, first-time merchant category or country), out-of-
hyperparameter-search-plannerPlan hyperparameter searches that fit the compute budget and read their results correctly: choose grid, random, successive halving (HalvingRandomSearchCV), Bayesian/TPE (Optuna) or Hyperband/ASHA from fit cost, trial budget, parallel workers and the number of continuous parameters; define search spa
imbalanced-class-handlerHandle imbalanced classification (fraud, churn, defaults, failures, rare diseases) without fooling yourself: measure with PR-AUC, recall at capacity and expected cost instead of accuracy, keep test sets at natural prevalence, stratified and repeated CV for few positives, choose thresholds from capac
kmeans-cluster-count-finderChoose the number of clusters k for k-means (and k-means-like methods) with evidence instead of a single elbow plot: inertia elbow via the kneedle method, silhouette, Calinski-Harabasz, Davies-Bouldin, the gap statistic against uniform reference data (which also detects that there is no structure at
learning-curve-diagnoserBuild and read learning curves (training and validation score versus training-set size) to decide whether a model is data-limited, variance-limited or bias-limited, and therefore whether to collect more data, regularise, add capacity or engineer features. Generates scikit-learn learning_curve script
learning-to-rank-model-builderBuild learning-to-rank models for search, recommendations re-ranking and marketplace sorting: validate query-document data (contiguous query groups, single-label and no-relevant queries, duplicates, query-level features, single-feature baselines and leakage-like features), train LightGBM lambdarank
lime-explanation-generatorGenerate LIME (Local Interpretable Model-agnostic Explanations) for tabular predictions that are reproducible and honest: run LimeTabularExplainer with training statistics, categorical encoding decoded inside the prediction function (so Pipelines with one-hot encoders work), quartile rules or contin
ml-baseline-model-builderBuild the baselines every ML model must beat before anyone trusts it: dummy majority/prior/mean/median predictors, the current business rule, a one-feature model (OneR), seasonal-naive and last-value forecasts, popularity recommenders, and a first honest linear model and HistGradientBoosting inside
ml-feasibility-assessorDecide GO, GO WITH RISKS or NO-GO for an ML project before building it: enough labelled rows and minority examples, events per feature, label quality and coverage, history length and drift, single-feature signal (out-of-fold AUC / Spearman) and suspicious near-perfect predictors, data availability a
ml-model-comparison-reporterCompare machine learning models honestly and write the comparison report: per-fold CV scores analysed with the corrected resampled t-test (Nadeau-Bengio), Wilcoxon signed-rank, Bayesian correlated t-test with a region of practical equivalence, and the Friedman test with average ranks for many models
ml-problem-framing-advisorTurn a vague business ask (\"use AI to reduce churn\", \"predict demand\", \"find fraud\") into a precise, buildable ML problem: the decision and action the prediction drives, who acts and with what capacity, the unit and moment of prediction, the label with its observation and outcome windows, labe
ml-project-scoping-writerWrite the scoping document (one-pager, PRD section or project charter) for a machine learning project: summary, the decision and its users, success criteria with a primary metric at the operating point, target, baseline, guardrails and online confirmation, data sources with availability at predictio
ml-success-metric-selectorChoose the metric that defines success for an ML model, and the guardrails around it, from the decision it serves: precision/recall@K for capacity-bound actions, expected cost at the cost-optimal threshold for asymmetric errors, PR-AUC vs ROC-AUC for rare events, log loss/Brier/ECE when probabilitie
ml-vs-rules-decision-advisorDecide whether a problem should be solved with hand-written rules, machine learning, a hybrid of both, or not yet: score twelve factors (labelled data volume, label availability, signal complexity, change rate, rule maintenance pain, scale, error cost, explainability and regulation, latency, team ML
model-card-writerWrite model cards that hold up to review: model details, intended and out-of-scope uses, training and evaluation data with periods and label definitions, overall metrics with confidence intervals, the baseline and decision threshold, performance disaggregated by group or segment with bootstrap inter
optuna-study-writerWrite correct, resumable Optuna hyperparameter studies for scikit-learn, LightGBM, XGBoost and CatBoost: an objective with a search space sized to the data, fixed CV folds built once (stratified, grouped or time-ordered), early stopping inside each fold, trial.report and should_prune for MedianPrune
overfitting-underfitting-diagnoserDiagnose overfitting and underfitting from the evidence a model leaves behind: training histories (metric per boosting round or epoch from LightGBM, XGBoost, CatBoost, Keras or PyTorch) and validation curves (train and validation score across one hyperparameter such as max_depth, C, min_samples_leaf
partial-dependence-plot-builderBuild and read partial dependence plots (PDP), individual conditional expectation (ICE) curves and accumulated local effects (ALE) for tabular models: generate scikit-learn partial_dependence scripts with percentile grids, the right response method and class, integer-safe columns, centred ICE with t
pca-dimensionality-reducerApply PCA correctly for dimensionality reduction, visualisation, decorrelation, compression and monitoring: standardise first (or justify covariance PCA), choose the number of components with cumulative explained variance, scree/elbow, Kaiser's rule and parallel analysis, interpret components throug
recommendation-system-designerDesign recommendation systems from the interaction data up: profile users, items, density, cold start, popularity concentration (Gini, long-tail shares), explicit versus implicit feedback and repeats; choose between popularity, item-item kNN, matrix factorisation (ALS, BPR, EASE), content-based, hyb
regression-model-trainerTrain regression models whose loss matches the target: squared error, absolute/Huber for heavy tails, log1p targets with retransformation (smearing) correction, Gamma for positive skewed amounts, Poisson for counts with exposure offsets, Tweedie for zero-inflated losses, two-part hurdle models, logi
scikit-learn-pipeline-builderBuild correct, production-shaped scikit-learn pipelines: Pipeline and ColumnTransformer per column role (impute + scale, one-hot with infrequent grouping, cross-fitted TargetEncoder, native categoricals for HistGradientBoosting, TF-IDF + SVD for text, date transformers), the right CV splitter (Strat
shap-value-explainerCompute and explain SHAP values for tabular models correctly: choose the explainer (TreeExplainer interventional or tree_path_dependent, CatBoost native ShapValues, LinearExplainer, model-agnostic PermutationExplainer), pick the background data and the output space (log-odds versus probability), exp
survival-analysis-model-builderBuild time-to-event (survival) models that handle censoring correctly: Kaplan-Meier curves with Greenwood log-log confidence intervals, median survival with CIs, survival at chosen times, restricted mean survival time and the log-rank test; Cox proportional hazards with Efron ties, hazard ratios, co
target-leakage-detectorFind and fix target leakage, the reason models score 0.99 offline and fail in production: features written after the prediction time (status, cancellation reason, refunds, chargebacks, closed dates), missingness patterns filled by the outcome, future timestamps, aggregates over all history, identifi
time-based-feature-builderBuild leakage-safe time-based features from event logs: point-in-time window aggregates (counts, sums, means, max, distinct counts over 1h/24h/7d/30d) strictly before each cutoff, recency (time since last event), frequency and monetary (RFM), velocity and burst ratios, trends (short vs long window),
time-series-forecasting-model-builderBuild forecasting models that beat honest baselines: profile the series (frequency, gaps, duplicate timestamps, seasonality by autocorrelation, trend and seasonal strength, weekday and month effects, outliers, smooth/erratic/intermittent/lumpy demand by ADI and CV^2), backtest seasonal naive, drift,
train-test-split-auditorAudit a train/test (or train/validation, train/production) split before trusting test scores: exact duplicate rows across sets, entity leakage (the same customer, patient, device or session on both sides), time overlap in forward splits, near-duplicates (rounded numerics, case/whitespace variants, e
umap-tsne-embedding-visualizerMake and read 2-D maps of high-dimensional data (tabular features, embeddings from text/image models, single-cell style data) with UMAP, t-SNE and PCA without being misled: scaling or L2 normalisation, PCA pre-reduction to ~50 dimensions, UMAP n_neighbors/min_dist/metric and t-SNE perplexity/early e
uplift-model-builderBuild uplift (incremental response, heterogeneous treatment effect) models that target the people a campaign, offer or intervention actually changes: validate the randomised experiment (sample-ratio mismatch, covariate balance by standardised mean difference, average treatment effect with confidence
xgboost-lightgbm-tunerTune XGBoost and LightGBM models efficiently and read their training curves: validation design and early stopping inside CV, fixed learning rate for search then lower rate with more trees for the final fit, capacity knobs (num_leaves, max_depth, min_child_samples, min_child_weight) sized to the data
academic-english-eap-course-plannerPlan English for Academic Purposes (EAP) courses: pre-sessional, in-sessional, foundation, IELTS preparation and discipline-specific EAP, with syllabus strands (academic reading, lecture listening and note-taking, essay and report writing, paraphrase, summary and synthesis, referencing and plagiaris
actfl-proficiency-curriculum-mapperMap world language curricula to the ACTFL framework: proficiency levels (Novice, Intermediate, Advanced, Superior, Distinguished with sublevels), functions, contexts, text types and accuracy, proficiency vs performance, the three modes of communication (interpretive, interpersonal, presentational),
adult-literacy-esl-lesson-builderBuild lessons for adult ESL learners who are developing literacy (LESLLA learners: pre-literate, non-literate, semi-literate, literate in a non-Roman script): learner profiles and sensitive initial assessment, principles (oral language first, known to new, systematic phonics with adult-relevant text
authentic-material-lesson-adapterTurn authentic material (news articles, podcasts, videos, songs, menus, timetables, adverts, social media posts, forms, infographics) into language lessons by grading the task rather than the text. Selects texts for interest, relevance, exploitability, coverage, cultural load and rights; finds the 4
can-do-statement-writerWrite and review can-do statements for language courses, units, lessons and learner self-assessment, CEFR or NCSSFL-ACTFL style: action (observable verb) + text or situation + level-specific conditions, learner ('I can') and descriptor ('Can') versions, progressions of one activity from A1 to C1, an
cefr-aligned-syllabus-builderBuild language course syllabuses aligned to the CEFR (A1-C2, plus levels, Companion Volume 2020): entry and exit levels, guided learning hours and course length (with an L1-distance adjustment), syllabus type (topic, functional-notional, task-based, skills-based, multi-strand), unit-by-unit can-do o
classroom-management-for-esl-coachCoach ESL/EFL teachers in classroom management: the instruction sequence (attention, group first, graded imperatives, demonstration, ICQs, hand out, start, check), ICQ examples, online instructions, routines for the first weeks (class agreement, L1 use, phones, lateness, homework, seating), strategi
communicative-activity-generatorGenerate communicative language-class activities matched to level, skill, class size, time, preparation, online or face-to-face delivery and target language: information gaps, find someone who, role plays with goal-and-conflict role cards, jigsaw reading, ranking and pyramid discussions, dictogloss,
delta-assignment-plannerPlan and check Cambridge Delta assignments: the three modules (exam, Module 2 professional practice with PDA and LSAs, Module 3 specialism or management), LSA components (background essay, lesson plan and commentary, observed lesson, post-lesson evaluation), a Module 3 structure, a five-week LSA tim
dialogue-for-classroom-writerWrite natural model dialogues for language classes that contain the target language, suit the level and sound spoken rather than written: situation, speakers' goals and a small complication, contractions, reactions and backchannels, discourse markers, repair and softening, adjacency pairs, register,
esl-worksheet-generatorCreate ESL/EFL and other language worksheets that move from recognition to controlled to freer practice: gap-fills with shuffled word banks, distractors and first-letter hints, open cloze, matching (word-definition, sentence halves, question-answer, collocations) with no item left opposite its partn
esp-english-course-designerDesign English for Specific Purposes (ESP) courses for professions and workplaces (medical and nursing, aviation, legal, hospitality, engineering, business): needs analysis (target situation, present situation, learning needs, means analysis) with practitioner interviews, task-list surveys rating fr
formative-assessment-for-language-plannerPlan formative assessment for language lessons and units: Wiliam's five strategies, success criteria, a bank of quick checks (exit tickets, mini whiteboards, ABCD cards, hinge questions with misconception distractors, traffic lights, no-hands-up questioning, monitoring checklists, 3-2-1, self-assess
l2-error-correction-strategy-advisorAdvise language teachers on correcting learner errors: mistakes vs errors vs fossilised errors, what to correct first (global, target, frequent, offensive), immediate vs delayed correction by lesson stage, the six oral corrective feedback types (explicit correction, recast, clarification request, me
language-course-scope-sequence-plannerPlan the scope and sequence of a language course: what is covered and in which order, using sequencing principles (need first, frequency, simple to complex, prerequisites, contrast after both items, learnability, topic coherence, spiral), a recycling plan for every item, a scope and sequence chart,
language-lesson-differentiation-plannerPlan differentiation for mixed-level language classes: tiered tasks (must/should/could, same text with different questions, graded texts, choice boards, open-ended tasks), different outcomes, scaffolds that do not stigmatise, same-level and mixed-level grouping by stage, roles, time and fast-finishe
language-lesson-plan-builderBuild and review staged language lesson plans for ESL/EFL and other languages: class profile, a main aim written as a learner outcome, subsidiary aims, target language analysis, stages with stage aims, timings, interaction patterns and procedure, materials, anticipated problems with solutions and a
language-placement-test-builderBuild, analyse and calibrate language placement tests: a blueprint (levels to separate, sections, length, items per level, item types, delivery, parallel forms), level-targeted grammar, vocabulary, reading and listening items, a short speaking interview with probes and a level-up push, cut-score set
language-program-review-writerWrite evidence-based reviews of language programmes and schools: review areas used by quality schemes (aims and design, curriculum and materials, teaching and learning, assessment, learner outcomes, support and welfare, staffing and CPD, resources, management, published information), evidence source
language-quiz-generatorGenerate language quizzes for grammar, vocabulary and comprehension from a tagged question bank: multiple choice with distractors drawn from real learner errors, gap-fills with base forms and all acceptable answers, true/false, balanced sampling across topics, shuffled questions and options by seed
language-teacher-cv-writerWrite and review CVs, cover letters and interview preparation for language teachers (EFL/ESL/TESOL and other languages): one-to-two-page structure, a profile line, qualifications first (CELTA, CertTESOL, Delta, PGCE, MA TESOL), experience bullets with action verbs, levels, ages, scale and results, p
language-teacher-observation-form-builderBuild lesson observation forms for language teachers and track observation results: a criteria bank across planning and aims, classroom management, language clarification, skills development, learner engagement, error correction, assessment for learning, inclusion and differentiation, materials and
listening-task-builderBuild listening lessons and tasks from audio or video transcripts: checks speech rate (words per minute), length, number of speakers and plays against the CEFR level, suggests pause points with approximate timestamps, and stages the lesson (lead-in, pre-teach, gist, specific information and detail t
online-language-teaching-setup-advisorAdvise language teachers on setting up and teaching online: equipment priorities (connection and upload speed, headset microphone, headphones, front lighting, camera, backup), platform features that matter for language classes (breakout rooms, computer-audio sharing, whiteboard and annotation, chat,
ppp-lesson-structure-plannerPlan presentation-practice-production (PPP) language lessons: a context that makes meaning clear, clarification of meaning, form and pronunciation with concept-checking questions (CCQs), timelines and drills, controlled practice with feedback, personalised freer practice and delayed error correction
pronunciation-feedback-for-teachers-toolHelp teachers diagnose and give feedback on English learners' pronunciation with intelligibility as the goal: Lingua Franca Core priorities, likely difficulties by first language (Spanish, Portuguese, French, German, Italian, Arabic, Mandarin, Cantonese, Japanese, Korean, Vietnamese, Thai, Russian,
reading-comprehension-text-adapterAdapt English reading texts to a target CEFR level and write comprehension tasks for them. Estimates text level from average sentence length and coverage by a high-frequency word list (plus Flesch reading ease), lists less frequent words and sentences too long for the target level, and guides simpli
recast-and-prompt-technique-coachCoach language teachers in oral corrective feedback moves: recasts (full, partial, stressed, recast plus prompt, didactic), prompts (elicitation, metalinguistic clues and questions, clarification requests, repetition, gestures) and explicit correction, with teacher language for each, a prompt-to-cor
refugee-language-support-plannerPlan language support for refugees, asylum seekers and other new arrivals: intake with interpreters and literacy checks, pathways (foundation literacy, script transition for learners literate in non-Roman scripts, settlement ESOL, work and study), a settlement syllabus prioritising personal informat
speaking-rubric-builderBuild and validate speaking assessment rubrics for language learners: holistic vs analytic vs checklist, criteria (fluency and coherence, lexical resource, grammatical range and accuracy, pronunciation and intelligibility, interactive communication, task achievement), band descriptors written from t
student-progress-report-writerWrite language learners' progress reports and report-card comments that are specific, balanced and useful to learners and parents: strength with evidence, measured progress, one or two areas to develop and a concrete next step, a phrase bank by skill, plain-language CEFR level descriptions, tone gui
student-writing-feedback-generatorGenerate written feedback on language learners' writing: content and task first, then two or three language focus areas, strength-target-action comments, level-appropriate wording, a comment bank for task, organisation, language, register and next steps, learner self- and peer-check checklists, and
task-based-language-lesson-designerDesign task-based language teaching (TBLT) lessons that pass Ellis's task criteria (focus on meaning, an information, opinion or reasoning gap, learners' own resources, a non-linguistic outcome) and follow the Willis framework: pre-task, task, planning, report and language focus with analysis and pr
tefl-celta-prep-tutorTutor trainees preparing for CELTA, Trinity CertTESOL and other initial TEFL/TESOL courses: course structure and assessment (teaching practice, assignments, grades, the five CELTA syllabus topics), what trainers assess in teaching practice, a pre-course study plan, grammar and phonology essentials,
vocabulary-game-generatorGenerate vocabulary games for language classes from a word list: printable word searches (easy, medium and hard directions, solution grid and positions), unique bingo cards with free squares and a shuffled caller list, and 20 classroom games (back to the board, taboo, pelmanism, dominoes, word-forma
warm-up-icebreaker-generatorwriting-rubric-for-l2-builderyoung-learner-esl-activity-generator8d-problem-solving-report-writeracceptance-sampling-plan-selectorapproved-supplier-list-managerapqp-phase-planneras9100-gap-analyzeraudit-report-writercapa-effectiveness-checkercapa-plan-writercontrol-plan-writerdesign-of-experiments-plannerdocument-control-system-designerfive-whys-analysis-facilitatorgage-rr-msa-analyzergreen-belt-exam-tutorhypothesis-test-selectoriatf-16949-requirement-checkerincoming-inspection-plan-writerinternal-audit-schedule-planneriso-9001-certification-roadmap-planneriso-9001-clause-explaineriso-9001-gap-analyzeriso-9001-quality-manual-writeriso-audit-checklist-generatorlayered-process-audit-designermanufacturing-cpk-capability-calculatormanufacturing-dmaic-charter-writermanufacturing-spc-chart-builderminitab-analysis-interpreterncr-nonconformance-report-writerpareto-defect-analyzerppap-submission-package-builderprocess-fmea-builderqms-audit-finding-writerqms-procedure-writerquality-fishbone-diagram-builderquality-policy-objectives-draftersix-sigma-dpmo-calculatorsupplier-audit-questionnaire-buildersupplier-corrective-action-request-writersupplier-development-plan-writersupplier-quality-scorecard-builderwestern-electric-rules-checkerexcel-advanced-formulasexcel-formulasexcel-fundamentalspython-async-deadlock-debuggerpython-asyncio-pattern-advisorpython-beginner-concept-tutorpython-comprehension-refactorerpython-context-manager-writerpython-dataclass-converterpython-exception-handling-designerpython-gil-bottleneck-analyzerpython-idiomatic-code-reviewerpython-multiprocessing-pool-designerpython-threadpool-executor-builderpython-trio-anyio-migratorpython-type-hints-annotatorrust-borrow-checker-error-explainerrust-cargo-workspace-designerrust-error-handling-thiserror-anyhow-designerrust-lifetime-annotation-advisorrust-tokio-async-service-builderrust-trait-design-reviewerrust-unsafe-block-auditorsql-analyticssql-data-qualitysql-debuggersql-dialect-translatorsql-optimizersql-performance-tuningsql-query-explainersql-query-writersql-reportingsql-syntax-checkersql-window-functionsWrite error-free Excel formulas, use modern LAMBDA and dynamic-array functions, and organise, format and inspect workbooks.
159 skills
Plan PPP and task-based language lessons, write worksheets, adapted texts, listening tasks, dialogues and vocabulary games, build CEFR and ACTFL syllabuses and can-do statements, write placement tests, rubrics and quizzes, give corrective feedback and progress reports, prepare for CELTA and Delta, and design ESP, EAP, young learner, adult literacy and refugee courses.
159 skills
Write, review and teach idiomatic modern Python for AI engineers: idioms, comprehensions, type hints, dataclasses, exception design, context managers, concurrency (asyncio, threads, processes, the GIL, deadlocks, Trio/AnyIO) and beginner tutoring.
159 skills
Build and certify an ISO 9001 QMS, plan and run audits, write NCRs, CAPAs and 8Ds, meet IATF 16949, APQP, PPAP and AS9100 requirements, run SPC, capability, MSA and acceptance sampling, apply Six Sigma DMAIC, DOE and hypothesis tests, and manage supplier quality.
159 skills
Explain borrow-checker and lifetime errors, design traits, error types and Cargo workspaces, audit unsafe code and build Tokio async services in idiomatic modern Rust.
159 skills
Write, check, explain, optimise, debug and translate SQL across PostgreSQL, MySQL, SQL Server, Oracle and SQLite, plus analytics, reporting and data-quality work.
159 skills
Eval-gated LLM fine-tuning lifecycle (LoRA/QLoRA, DPO, GRPO/RLVR, vision SFT, quantized export). Use when fine-tuning an open-weights model end-to-end: building the eval harness first, selecting method and model, preparing data, training with Unsloth or TRL, gating checkpoints, and exporting GGUF/FP8.
10 skills · 2 commands · 3 agents
Multi-agent orchestration with AI SDK v5 - handoffs, routing, and coordination for any AI provider (OpenAI, Anthropic, Google)
1 skill · 3 commands · 1 agent
LLM application development, prompt engineering, and AI assistant optimization
5 skills · 3 commands · 2 agents
LLM application development, prompt engineering, and AI assistant optimization
5 skills · 3 commands · 2 agents
LLM application development, prompt engineering, and AI assistant optimization
4 skills · 3 commands · 2 agents
AI & Agents bundle — 388 curated skills (agents, ai-ml, prompt-engineering) for Claude Code, Codex & Antigravity.
200 skills
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