Use when writing Spark jobs, debugging performance issues, or configuring cluster settings for Apache Spark applications, distributed data processing pipelines, or big data workloads. Invoke to write DataFrame transformations, optimize Spark SQL queries, implement RDD pipelines, tune shuffle operations, configure executor memory, process .parquet files, handle data partitioning, or build structured streaming analytics.

Designs distributed system architectures, decomposes monoliths into bounded-context services, recommends communication patterns, and produces service boundary diagrams and resilience strategies. Use when designing distributed systems, decomposing monoliths, or implementing microservices patterns — including service boundaries, DDD, saga patterns, event sourcing, CQRS, service mesh, or distributed tracing.

Use when building high-performance async Python APIs with FastAPI and Pydantic V2. Invoke to create REST endpoints, define Pydantic models, implement authentication flows, set up async SQLAlchemy database operations, add JWT authentication, build WebSocket endpoints, or generate OpenAPI documentation. Trigger terms: FastAPI, Pydantic, async Python, Python API, REST API Python, SQLAlchemy async, JWT authentication, OpenAPI, Swagger Python.

End-to-end playbook for shipping high-quality pull requests to open-source projects you don't maintain — discovery, CONTRIBUTING compliance, PR-size check, minimal-diff implementation, PR description with AI-assisted disclosure, conflict resolution, and post-submission maintainer interaction. Use whenever creating, editing, or pushing a PR to a third-party GitHub repo — "submit a PR", "open a PR", "fix this upstream", "rebase against main", "respond to the bot review", an `owner/repo` target, or 提 PR / 上游 PR / 贡献代码 / rebase 冲突 / 回应维护者.

AINE (AI-Native SDLC) Reference Architecture advisor. Reviews architecture decisions against AINE principles, recommends AI-native design patterns, guides context engineering maturity progression, and helps teams structure spec-driven workflows. Use when designing AI-native systems, planning software delivery lifecycle improvements, evaluating tooling or foundation model choices, setting up agentic workflows, or when the user mentions AINE, AI-Native SDLC, spec-driven development, context engineering, MCP servers, agentic orchestration, context engineering maturity, or AI-assisted SDLC. Also use when users ask specifically about how AI integrates across product, design, implementation, testing, deployment, and maintenance phases, or want to evaluate AI-native architecture patterns and agent orchestration strategies.

Designs distributed system architectures, decomposes monoliths into bounded-context services, recommends communication patterns, and produces service boundary diagrams and resilience strategies. Use when designing distributed systems, decomposing monoliths, or implementing microservices patterns — including service boundaries, DDD, saga patterns, event sourcing, CQRS, service mesh, or distributed tracing.

Upgrade Gamma SDK versions and migrate between API versions. Use when upgrading SDK packages, handling deprecations, or migrating to new API versions. Trigger with phrases like "gamma upgrade", "gamma migration", "gamma new version", "gamma deprecated", "gamma SDK update".

Execute Exa incident response with triage, mitigation, and postmortem procedures. Use when responding to Exa-related outages, investigating errors, or running post-incident reviews for Exa integration failures. Trigger with phrases like "exa incident", "exa outage", "exa down", "exa on-call", "exa emergency", "exa broken".

UiPath governance via `uip gov` — author and deploy policies on two layers. AOps product policies (`uip gov aops-policy`): block/restrict/enforce features in Studio, StudioX, Assistant, Robot, AI Trust Layer, Agent Builder; deploy to user/group/tenant. Access ToolUsePolicy (`uip gov access-policy`): allow/deny when one workflow invokes another as a tool (Agent→Agent/Maestro/Flow/RPA/API/Case), gated by tag, caller, or actor (User/Group). Skill classifies product-layer vs resource/tool-use intent before authoring. Operate: deploy/undeploy policies to user/group/tenant, query effective deployed policy, list deployment subjects. Diagnose: investigate policy not taking effect, debug deployment precedence (user>group>tenant), evaluate access-policy rules, troubleshoot blocked tool invocations. For platform ops→uipath-platform.

Claims-based authorization for agents and operations. Grant, revoke, and verify permissions for secure multi-agent coordination. Use when: permission management, access control, secure operations, authorization checks. Skip when: open access, no security requirements, single-agent local work.

Always invoke when the user's message includes 'tailwind' in any form. Also invoke for: building responsive grid layouts (multi-column card grids, product grids), flex/grid page structures (dashboards with sidebars, fixed topbars, mobile-toggle navs), styling UI components (cards, tables, navbars, pricing sections, forms, inputs, badges), adding dark mode variants, fixing spacing or typography, and Tailwind v3/v4 work. The core use case: writing or fixing Tailwind utility classes in HTML templates (Blade, JSX, Vue). Skip for backend PHP logic, database queries, API routes, JavaScript with no HTML/CSS component, CSS file audits, build tool configuration, and vanilla CSS.

Clone a dockersamples Labspace repo, extract learning objectives and module structure from labspace.yaml, and produce a Hugo guide page under content/guides/ with correct frontmatter, labspace-launch shortcode, and Docker docs style compliance. Use when asked to create a lab guide, write a Labspace page, add a Docker lab tutorial, migrate a lab to docs, or document a hands-on lab.

Claims-based authorization for agents and operations. Grant, revoke, and verify permissions for secure multi-agent coordination. Use when: permission management, access control, secure operations, authorization checks. Skip when: open access, no security requirements, single-agent local work.

Test chat bots, voice assistants, and IVR menus with pytest using a small Conversation object and a callable bot adapter. Use when the user wants to write rule-based assertions over multi-turn dialogue without bringing in an LLM dependency, when they have a chatbot reachable as a Python callable or HTTP webhook, when they need to keep per-conversation state across turns and assert on slot filling, when they want pytest-native fixtures and a printable transcript on failure, or when they mention voice-assistant testing, IVR menu testing, conversational AI testing, LLM bot testing (used as the target under test, not as the matcher), expect matchers for bot replies, or multi-turn dialogue tests.

Captures learnings, errors, and corrections to enable continuous improvement. Use when: (1) A command or operation fails unexpectedly, (2) User corrects Claude ('No, that's wrong...', 'Actually...'), (3) User requests a capability that doesn't exist, (4) An external API or tool fails, (5) Claude realizes its knowledge is outdated or incorrect, (6) A better approach is discovered for a recurring task. Also review learnings before major tasks.

Cloudflare Workers observability with logging, Analytics Engine, Tail Workers, metrics, and alerting. Use for monitoring, debugging, tracing, or encountering log parsing, metric aggregation, alert configuration errors.

Investigate and resolve Cloudflare configuration issues using API-driven evidence gathering. Use when troubleshooting ERR_TOO_MANY_REDIRECTS, SSL errors, DNS issues, or any Cloudflare-related problems. Focus on systematic investigation using Cloudflare API to examine actual configuration rather than making assumptions.

Investigate and resolve Cloudflare configuration issues using API-driven evidence gathering. Use when troubleshooting ERR_TOO_MANY_REDIRECTS, SSL errors, DNS issues, or any Cloudflare-related problems. Focus on systematic investigation using Cloudflare API to examine actual configuration rather than making assumptions.

Diagnose Swift Concurrency issues, refactor callback-based code to async/await, and guide Swift 6 migration when working with tasks, actors, @MainActor, Sendable, data races, thread safety, or concurrency-related compiler and linter warnings.