SWEStash
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- ▌ Dependency Management · swestash bundleEvaluate, audit, and upgrade project dependencies — assess libraries before adoption, audit CVEs, plan major upgrades, resolve conflicts.
- ▌ Frontend Architecture · swestash bundleDesign frontend architecture — React component hierarchy, state management, design tokens, data fetching, routing, error boundaries, code organization. Triggers: component architecture, state management, design system, design tokens, component library, React structure, folder structure, Zustand vs Redux, React Query, code splitting, error boundary, compound component.
- ▌ Project Documentation · swestash bundleWrite project docs — README, contributing guides, API docs, changelogs, inline docs — and reconcile existing docs after a change made them wrong. Owns doc drift from the change in front of you; a repo-wide doc-rot audit belongs to technical-debt-review.
- ▌ Technical Debt Review · swestash bundleStrategic codebase health assessment — identify hotspots, categorize debt, produce remediation roadmap.
- ▌ Configuration Strategy · swestash bundleDesign environment configuration, secrets management, and feature-flag hierarchy for a service or feature. Triggers: config strategy, environment variables, .env, secrets management, feature flag, config hierarchy, config precedence, twelve-factor config, environment-specific settings.
- ▌ Infrastructure As Code · swestash bundleWrite and review IaC with Terraform, CloudFormation, Pulumi, or CDK — modularity, security, state management. Triggers: Terraform, CloudFormation, Pulumi, infrastructure as code, IaC, provision, cloud resources, terraform module, state management, terraform plan, CDK, drift, remote state.
- ▌ Ml Experiment Tracking · swestash bundleDesign reproducible ML experiments — tracking, versioning, run comparison with MLflow, W&B, or DVC. Triggers: experiment tracking, MLflow, wandb, weights and biases, DVC, track experiments, compare models, hyperparameter, reproducibility, model registry, which model is better, experiment results, log metrics. Defining WHAT to measure (metrics, golden datasets, judges) → ai-evaluation; this skill records and compares the runs.
- ▌ Notebook To Production · swestash bundleRefactor analysis notebooks into production-grade code — triage what deserves productionizing, extract modules with tests, parameterize hardcoded values, pin environments for reproducibility, and schedule unattended runs with alerting. Owns general analysis/reporting notebooks; notebooks that feed model TRAINING (feature engineering + training DAGs, scheduled retraining) → ml-pipeline-design.
- ▌ Resilience Engineering · swestash bundleDesign systems that survive failure — failure-mode analysis, resilience patterns (timeouts, retries with backoff, circuit breakers, bulkheads, load shedding, graceful degradation), chaos experiments, disaster recovery with RTO/RPO, backup restore testing, game days. Triggers: chaos engineering, disaster recovery, DR plan, what if the database goes down, single point of failure, failover, circuit breaker, RTO, RPO, game day, high availability. An incident happening NOW → incident-response; undoing a bad deploy → rollback-strategy.
- ▌ Subagent Orchestration · swestash bundleDecompose big or parallelizable work across subagents — when to fan out vs stay solo, scoping self-contained sub-tasks, prompting agents that don't share your context, isolating parallel edits (git worktrees), skeptically verifying and synthesizing results you didn't produce. Triggers: use subagents, parallelize this, fan out, orchestrate agents, multi-agent, spawn agents, worktree, delegate to agents, split this across agents, agent team. Sequencing checkpoints of an approved plan → plan-execution (orchestration parallelizes within its batches).
- ▌ Finops Cost Optimization · swestash bundleUnderstand and reduce cloud spend — cost visibility and allocation (tagging, ownership), unit economics, rightsizing, autoscaling, commitment discounts (reserved instances, savings plans), storage/egress traps, architecture cost review, budgets and anomaly alerts. Triggers: cloud costs, AWS bill, cut costs, cost optimization, FinOps, why is our bill so high, rightsizing, reserved instances, savings plan, egress fees, cost per customer. Whether to build or buy a capability → build-vs-buy; making code faster → performance-optimization.
- ▌ Performance Optimization · swestash bundleIdentify and resolve performance bottlenecks via static analysis — N+1 queries, algorithmic complexity, query optimization, caching, memory leaks, bundle size, connection management. Triggers: this is slow, optimize, performance, N+1, query optimization, caching, bundle size, memory leak, latency, response time, scale, bottleneck.
- ▌ Exploratory Data Analysis · swestash bundleExplore and profile an unfamiliar dataset before modeling or analysis — structural profiling, missingness structure, distributions and outliers, feature–target relationships, leakage awareness, and explicit hypothesis generation. Pipeline-level data trust (broken dashboards, tests, contracts, freshness) → data-quality; formal inference on the hypotheses → statistical-analysis.
- ▌ Architecture Documentation · swestash bundleDesign and maintain architecture documentation with multi-level diagrams (C4) and docs-as-code. Triggers: architecture diagram, document the architecture, C4 diagram, system context, container diagram, component diagram, architecture docs, docs-as-code, PlantUML, Structurizr, D2, Mermaid architecture, infrastructure diagram, runtime flow. Use architecture-design for ADRs.
- ▌ Dependency Impact Analysis · swestash bundleMap the blast radius of a change before implementing — find dependents, classify breaking vs additive, identify coordination needs, produce a propagation plan. Triggers: what will break if I change this, blast radius, impact analysis, breaking change, who depends on this, downstream impact, safe to rename, shared schema change, dependency graph.
- ▌ Verification Before Completion · swestash bundleEvidence gate before claiming work is done, passing, fixed, or deployed. Use before saying 'done', 'it works', or 'tests pass', or before committing, pushing, or opening a PR. Run the proving command fresh and read its output first.
- ▌ Dx Audit · swestash bundleAudit and improve developer experience — inner-loop feedback (build/test/reload times), CI wait and queue times, flaky tests, local environment setup, onboarding time-to-first-PR, tooling friction, docs discoverability; produce a prioritized remediation plan. Triggers: developer experience, DX audit, devex, builds are slow, CI takes forever, flaky tests, onboarding takes weeks, tooling friction, developer productivity, engineers are frustrated. Code health/debt hotspots → technical-debt-review; designing one pipeline → cicd-pipeline.
- ▌ API Design · swestash bundleDesign RESTful and GraphQL APIs — endpoint naming, request/response contracts, error handling, pagination, versioning, auth patterns, OpenAPI specs. Triggers: design the API, API contract, REST API, GraphQL schema, error response format, pagination, API versioning, OpenAPI, swagger, endpoints. Use architecture-design for REST-vs-GraphQL or monolith-vs-microservices decisions.
- ▌ Prd Writing · swestash bundleWrite lightweight agile PRDs and technical RFCs that align stakeholders before implementation. Triggers: PRD, product requirements, RFC, request for comments, technical design doc, design document, tech spec, write requirements, what are we building, spec this out. Produces the WHAT and WHY — feature-planning handles HOW.
- ▌ Refactoring · swestash bundleSystematic code improvement via design principles, smell detection, and safe transformation patterns. Triggers: refactor this, clean this up, simplify this code, reduce complexity, extract this, this code is messy, tech debt, improve this code, code smell, rename, extract function, dead code.
- ▌ Build Vs Buy · swestash bundleDecide whether to build in-house, buy a vendor/SaaS product, or adopt OSS — core-vs-commodity framing, multi-year total cost of ownership, integration and maintenance burden, vendor viability, lock-in and exit costs. Triggers: build vs buy, build or buy, vendor evaluation, SaaS vs in-house, should we adopt this open source, TCO, total cost of ownership, lock-in, exit cost, make or buy, off the shelf. Internal-structure decisions (patterns, service boundaries, ADRs for your own code) → architecture-design.
- ▌ Data Quality · swestash bundleKeep warehouse and pipeline data trustworthy — dbt tests, expectations (Great Expectations/Soda), data contracts with upstream producers, source freshness, schema-drift and volume anomaly detection, lineage and blast radius, severity and alerting. Triggers: data quality, bad data in dashboards, data validation, dbt tests, data contract, schema drift, stale data, freshness check, duplicate rows, nulls in the warehouse, data lineage, data SLA, upstream schema change broke us. Generating test/synthetic data → test-data-strategy; schema design → data-modeling.
- ▌ Git Workflow · swestash bundleWrite commit messages, PR descriptions, and manage branching strategy following conventional commits.
- ▌ Skill Router · swestash bundleOrchestrator and entry point for the swe-workflow skills library — consult FIRST when starting any non-trivial software task; most skills load name-only and only activate when invoked here. Routes intent to the right skill(s) and invokes them by name; shows the Golden Path chains.
- ▌ Tdd Workflow · swestash bundleGuide test-driven development with red-green-refactor. For NEW code via test-first — use test-suite-design for adding tests to existing code.
- ▌ UI UX Design · swestash bundleDesign user experiences from an engineer's perspective — user flows, wireframes, interaction patterns, responsive strategy, navigation, loading/error/empty states. Triggers: design the UI, user flow, wireframe, how should this screen look, loading state, error state, empty state, responsive design, navigation, page layout, form design, mockup.
- ▌ AI Evaluation · swestash bundleDefine how to evaluate ML models and GenAI/LLM apps — golden datasets, offline metrics, RAG evaluation (faithfulness, relevance, context precision/recall) with ragas/deepeval/promptfoo, LLM-as-judge design and calibration, eval regression gates in CI, online A/B and human feedback. Logging/comparing runs → ml-experiment-tracking; building the app → llm-app-engineering; general experiment statistics → statistical-analysis.
- ▌ Brainstorming · swestash bundleFacilitate divergent ideation before committing to a spec — Socratic questioning, widening the option space, challenging assumptions and inherited constraints, then converging on candidates. Triggers: brainstorm, let's explore ideas, what are our options, help me think through, generate ideas, what could we build, not sure what I want, explore approaches, ideate. Once ideas converge, hand off to prd-writing (WHAT/WHY) or feature-planning (breakdown) — this skill opens options; those close them.
- ▌ Cicd Pipeline · swestash bundleDesign CI/CD pipelines for automated build, test, deploy — GitHub Actions, GitLab CI, quality gates. Triggers: CI/CD, pipeline, GitHub Actions, GitLab CI, workflow, automated deployment, build pipeline, continuous integration, continuous deployment, automate tests on PR, deploy automatically, quality gate.