App

MCP server design: tool schemas, resources, stdio/SSE, capability negotiation. Triggers: MCP, Model Context Protocol, JSON-RPC, stdio, SSE, Claude Desktop.

Python coding rules: style, patterns, security, testing. Triggers: .py, .pyi, pyproject.toml, requirements.txt, Pipfile, FastAPI, Django, Flask, pytest, SQLAlchemy, ruff, mypy.

RAG: embeddings, chunking, hybrid search (BM25+vector), reranking, CRAG, multi-hop. Triggers: RAG, embedding, pgvector, Qdrant, Pinecone, Weaviate, reranker, semantic search.

SEO validator: meta/OG, Schema.org, hreflang, Core Web Vitals, crawlability. Triggers: SEO, meta tags, Schema.org, hreflang, LCP, INP, CLS, Core Web Vitals, sitemap, crawlability.

Bug triage: explores codebase for root cause, files GitHub issue with TDD fix plan. Triggers: triage, investigate bug, fix plan, root cause, file issue, bug report.

Accessibility validator: WCAG 2.1 AA, EN 301 549, EAA. Triggers: a11y, accessibility, WCAG, EAA, ARIA, contrast, keyboard, screen reader.

Creates new specialized agents with frontmatter, tools, delegation. Triggers: new agent, create agent, agent scaffold, specialized agent.

Multi-source web research methodology: retrieve-vs-answer gate, complexity-scaled search budget, query craft, primary-source preference, source-conflict skepticism, adversarial verification, attribution-without-reproduction. Triggers: deep research, multi-source, web research, synthesize sources, cross-reference, fact synthesis, source verification.

Docker/K8s: Dockerfile, multi-stage, compose, manifests, Helm. Triggers: Docker, Dockerfile, container, Kubernetes, k8s, compose, Helm, pod.

Java: Spring Boot, CompletableFuture, records, sealed types, JPA/Hibernate, virtual threads. Triggers: Java, Spring, JPA, Hibernate, Maven, Gradle, virtual thread, sealed class.

Medplum (FHIR healthcare) coding rules: style, patterns, security, testing. Triggers: medplum.config.mts, medplum.config.ts, FHIR, Medplum, Bot, Subscription, Questionnaire.

Splits a PRD into vertical-slice GitHub issues with HITL/AFK tagging and dependencies. Triggers: PRD to issues, create tickets, break down PRD, work items.

Creates detailed refactor plan with tiny commits via interview, files as GitHub RFC. Triggers: refactor plan, refactoring RFC, incremental refactor, safe steps.

Ruby/Rails: blocks, metaprogramming, ActiveRecord, Sidekiq, RSpec, Sorbet, Hanami. Triggers: Ruby, Rails, ActiveRecord, Sidekiq, RSpec, Gemfile, bundler, Hanami, Sorbet.

Rust: ownership, lifetimes, async (Tokio), Result/anyhow/thiserror, traits, unsafe. Triggers: Rust, borrow checker, lifetime, Tokio, cargo, trait, impl, Result, unsafe, clippy.

Creates new skills from templates via guided workflow. Triggers: new skill, create skill, skill scaffold, skill template.

Drives a brief, specification, issue or existing PR through implementation, review, tests and QA to a ready PR. Persists ownership, progress and commit-bound evidence for safe resumption. Use for autonomous software delivery or finishing an interrupted development run.

CI/CD: GitHub Actions, GitLab CI, Jenkins, caching, blue-green, canary. Triggers: CI, CD, pipeline, GitHub Actions, workflow YAML, release, canary, rollout.

HIPAA validator: PHI exposure, audit logging, encryption, access control, BAA refs. Triggers: HIPAA, PHI, healthcare compliance, audit log, BAA.

Creates opt-in plugin packs with manifests + module scaffolding for Claude/Codex. Triggers: new plugin, plugin pack, plugin scaffold.

Swift/iOS: SwiftUI, Combine, async/await, actors, SPM, Core Data, UIKit interop. Triggers: Swift, SwiftUI, Combine, iOS, Xcode, actor, Core Data, @MainActor, @State.

Creates new Claude Code slash commands with frontmatter and validation. Triggers: new slash command, create command, command scaffold.

C#/.NET: LINQ, async/await, DI, records, nullable refs, ASP.NET Core, EF Core, MediatR. Triggers: C#, .NET, dotnet, ASP.NET, EF Core, LINQ, record type, IServiceCollection.

Change files with the edit and write tools, never by rewriting them through bash (sed, awk, tee, heredoc, redirection), and show `git diff` before reporting a file-changing task as done. Triggers: edit, write, modify, refactor, patch, fix, diff, review changes.

Reviews/promotes/removes instincts from `.claude/instincts/*.md`. Triggers: instinct review, curate instincts, manage instincts, promote instinct.

Kotlin: coroutines, Flow, sealed/data classes, null safety, Ktor, Compose, KMP. Triggers: Kotlin, coroutine, Flow, suspend, Ktor, Jetpack Compose, KMP, kotlinx.

Flutter/Dart: widgets, state mgmt (Riverpod/Bloc), navigation, platform channels. Triggers: Flutter, Dart, widget, Riverpod, Bloc, pubspec, hot reload.

Prepare or verify a project QA environment with source identity, readiness, browser access, evidence paths and owned cleanup. Use for autonomous delivery or application testing that needs a running app.

Hierarchical retrieval: KB → MCP/Context7 → web. Triggers: research, fact-check, verify, synthesize, cross-reference, multi-source, cite sources.

Testing strategy: pyramid, AAA, mocks/fakes/stubs, flaky tests, coverage. Triggers: test, fixture, mock, stub, e2e, TDD, Playwright, Cypress, flaky, coverage, property-based.

TypeScript/JavaScript coding rules: style, patterns, security, testing. Triggers: .ts, .tsx, .js, .jsx, package.json, tsconfig.json, React, Next.js, Vue, Vite, Vitest, Jest, ESLint.

DB schema design and query tuning: normalization, indexing, N+1, transactions, EXPLAIN. Triggers: schema, index, slow query, N+1, PostgreSQL, MySQL, EXPLAIN, deadlock, query plan.

App security: OWASP, authN/authZ, input validation, secrets, TLS, CSRF/XSS/SQLi, JWT, CSP, LLM prompt injection. Triggers: security, OWASP, auth, JWT, CSRF, XSS, SQL injection, secrets, TLS, CSP, CORS, prompt injection, LLM output trust, tool permissions.

Audits codebase for architectural friction, shallow modules; proposes RFCs. Triggers: improve architecture, shallow modules, deepen modules, reduce coupling.

UI craftsmanship: animation rules, easing, micro-interactions, state polish. Triggers: animation, transition, ease-out, motion, micro-interaction, hover, loading state, UI polish.

E-commerce: cart, checkout, payments (Stripe/Adyen), order state, inventory, promos, tax. Triggers: cart, checkout, SKU, payment, Stripe, Shopify, Medusa, Magento, coupon, refund.

Structured JSON output from Claude: tool-use-as-JSON, schema, parsing, partial recovery. Triggers: JSON mode, structured output, schema validation, JSON parsing.

Zero-downtime DB migrations: expand-contract, double-write, backfill, blue-green. Triggers: migration, schema change, backfill, ALTER TABLE, online DDL.

Generates and compares parallel interface designs (Ousterhout 'Design It Twice'). Triggers: design API, interface options, compare modules, design it twice.

TypeScript types: generics, discriminated unions, Zod, satisfies, branded types. Triggers: TypeScript, TS, generics, Zod, satisfies, strict mode.

Extracts DDD ubiquitous language glossary, flags ambiguities, saves to UBIQUITOUS_LANGUAGE.md. Triggers: define domain terms, build glossary, harden terminology, DDD, domain model.

SoftSpark working agreement: never guess a home directory path, give at least three alternatives, and apply a devil's advocate critique to decisions. Triggers: toolkit, conventions, workflow, alternatives, review.

Executes plans via fresh subagents per task with two-stage review (spec → quality). Triggers: subagent execution, execute plan, fresh agent per task, spec compliance review.

Architecture decisions in ADR/RFC/RFD format: context, constraints, options, recommendation. Triggers: ADR, RFC, RFD, trade-offs, design choice, pick between, evaluate approach.

Performance: golden signals, p50/p95/p99, flame graphs, load testing. Triggers: performance, slow, latency, p99, flame graph, bottleneck, memory leak.

Multi-model pipelines (Haiku/Sonnet/Opus): cost routing, escalation, fallback chains. Triggers: model routing, Haiku, Sonnet, Opus, escalation, fallback chain.

Observability: structured logs, metrics (RED/USE), tracing, SLO/SLI. Triggers: logging, metrics, Prometheus, Grafana, OpenTelemetry, trace, monitoring.

KB conventions: YAML frontmatter, 10-category taxonomy (reference/howto/procedures/troubleshooting/best-practices/decisions/runbooks/planning/business/templates). Triggers: kb/, SOP, runbook, howto, frontmatter, knowledge base.

Anthropic API prompt caching: TTL, breakpoints, stacking, invalidation, hit rate. Triggers: prompt caching, cache_control, cache breakpoint, cache TTL, hit rate.

Content moderation with Claude: pre-filter vs LLM-classify, categories, thresholds, HITL. Triggers: moderation, safety filter, policy enforcement, content classifier.

Forces verification commands before success claims. Evidence before assertions. Triggers: complete, fixed, passing, done, ready, verified.