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Found 552 Skills
Database performance optimization for MongoDB, PostgreSQL, MySQL, Redis, and ORMs like Prisma and Mongoose. Covers indexes, query patterns, pagination, caching, connection pooling, migration safety, and scaling. Use when optimizing slow queries, designing indexes, reviewing database performance, or improving database scalability.
Diagnose HPC runtime and scheduler problems for materials simulations, including MPI/OpenMP/GPU layout, modules, CUDA/Kokkos hints, scratch paths, walltime, job arrays, restart strategy, scheduler portability, and resource mismatch. Use when an ALREADY-SUBMITTED job failed, ran slowly, got killed, or behaved differently on a cluster than on a workstation. To author or vet a NEW submission script before running, use slurm-job-script-generator instead.
Select and configure nonlinear solvers for root-finding f(x)=0, optimization min F(x), and least-squares problems — choose among Newton, Newton-Krylov, quasi-Newton (BFGS, L-BFGS), Broyden, Anderson acceleration, and Levenberg-Marquardt methods, configure line search or trust-region globalization, diagnose convergence rate (quadratic, linear, stagnated), and assess Jacobian quality and conditioning. Use when a Newton solver converges slowly or diverges, choosing between line search and trust region, debugging nonlinear iteration failures in FEM or phase-field codes, or selecting a solver for large-scale unconstrained optimization, even if the user only says "my Newton iterations aren't converging."
Analyze Grafana Cloud k6 test run trends over time. Detects slow metric drift (e.g., P95 latency creeping up while still passing thresholds), computes headroom to thresholds, flags anomalies, and recommends threshold tightening. Use when the user asks about test performance trends, wants to know if metrics are degrading, asks whether thresholds should be tightened, or wants a health check across recent runs for a specific test. Trigger on phrases like "how is my test trending", "is P95 getting worse", "check for performance regression", "should I tighten thresholds", "are my tests degrading", "show me trends for test X", "analyze my k6 test runs", or "is my test getting slower". Also trigger when a user asks to check all tests in a project -- run this skill once per test and synthesize.
Use when the user wants to performance-test, load-test, or stress-test a public website end-to-end with k6. Produces a hybrid (protocol + browser) test suite, SLO-backed thresholds, a load-generator monitor sidecar, and a Grafana-side investigation playbook for backends the user owns. Triggers on "perf test my site", "performance test my site", "load test this URL", "stress test my web app", "I want to load test [URL]", "set up k6 against my website", "write a k6 suite for [site]", "see if my site handles N concurrent users", or "how does my site perform under traffic". Use this skill whenever the user mentions k6, load testing, stress testing, performance testing, or wants to validate a website under traffic — even if they don't explicitly use the word "test" or ask for the specific outputs this skill produces.
Runtime diagnosis for Olares apps and the system via olares-cli — find the root cause when an app won't install or start, crashes, cannot pull an image, is `running` but unreachable, or is slow; includes doctor images and thirdleveldomain. Use for diagnosing catalog and dev app failures, not for authoring or editing charts.
Find the cause of a failure and prove it before any fix. No hypothesis before a command that already reproduces the symptom. Covers building a signal that reproduces, ranking rival explanations with what would falsify each, probing without fixing, putting the regression test where the bug actually occurs, and reporting the causal chain at file:line. Use when the user says "this is broken", "why is this failing", "tests fail after my change", "it only breaks sometimes", or reports something throwing, hanging, or newly slow. Not for judging a change that already exists, or for an error whose message already names the file, line, and cause.
Generate a reusable ASCII-only text template library (titles, dividers, notice boxes, slogans/CTA), with naming conventions and selection rules for consistent CLI/log/README output.
Guide for diagnosing and improving MSBuild project evaluation performance. Only activate in MSBuild/.NET build context. Use when builds are slow before any compilation starts, when evaluation time is high in binlog analysis, or when dealing with expensive glob patterns and deep import chains. Covers evaluation phases, glob optimization, import chain analysis, and /pp preprocessing.
Source code security audit using backward taint analysis, slot type classification, render context verification, and 3-phase parallel review producing an exploitation queue.
Make your messages unforgettable using the Heath brothers' SUCCESs framework Use when: **Crafting a core message** for a product, campaign, or company that needs to stick; **Presenting complex ideas** to audiences who may forget 90% of what you say; **Writing headlines, taglines, or slogans** that people remember and repeat; **Training or educating** when retention matters more than coverage; **Pitching investors or stakeholders** where one memorable idea beats ten forgettable ones
System prompt toolkit that removes AI slop and makes any LLM respond like a normal person — concise, direct, no filler.