Functional Core, Imperative Shell: isolate deterministic logic from side effects for testability. Triggers: functional-core, imperative-shell, pure functions, side-effects, testability Use when: business logic is entangled with I/O or tests are brittle DO NOT use when: simple scripting without complex logic, or performance-critical hot paths where immutability overhead matters.

Prevents sycophantic reasoning through checklist-based analysis, categorical integrity, and evidence-following to uncomfortable conclusions. Red Flags: "I agree that", "You are right", "Great point", "Absolutely", "That is a fair point", "I can see why", agreement without validation, softening conclusions, hedging without evidence, retracting under pressure. Use when analyzing conflicts, evaluating ethical claims, or noticing sycophantic thought patterns. Do not use for routine implementation or simple factual questions. CRITICAL: This skill overrides conversational tendencies toward politeness. Agreement requires validity and accuracy.

Data-grid architecture for high-traffic stateful workloads with linear scalability. space-based, data grid, in-memory, linear scaling, high traffic Use when: traffic overwhelms database nodes or linear scalability needed DO NOT use when: data does not fit in memory or simpler caching suffices.

Consult this skill when formatting final review deliverables. Use when formatting final review outputs, ensuring consistent deliverable structure, making findings comparable across reviews. Do not use when capturing evidence during analysis - use proof-of-work. DO NOT use when: reviewing changes - use diff-analysis or review-core first.

Gemini CLI delegation workflow implementing delegation-core for Google's Gemini models. Use when delegation-core selected Gemini, need Gemini's 1M+ token context window, batch processing required. Do not use when deciding which model to use (use delegation-core first), gemini CLI not installed.

Consult this skill when implementing service registry patterns. Use when managing multiple external services, implementing health checks, centralizing service configuration, unified service execution. Do not use when single service integration without registry needs.

Transform specifications into implementation plans with architecture design and dependency-ordered tasks. Use for spec-to-plan conversion, task breakdown, effort estimation. Skip if no spec exists.

Asynchronous event-based communication to decouple producers/consumers for scalability and resilience. Triggers: event-driven, message queue, pub/sub, asynchronous, decoupling Use when: real-time workloads or multiple subsystems react to same events DO NOT use when: selecting paradigms (use architecture-paradigms first), simple request-response.

Single deployable with enforced module boundaries for team autonomy without distributed complexity. Triggers: modular-monolith, module boundaries, single deployment, team autonomy Use when: teams need autonomy without distributed overhead DO NOT use when: already using microservices or system is small.

Orchestrate tutorial generation from VHS tapes and Playwright specs to dual-tone markdown with GIF recording. tutorial update, gif generation, tape recording, update tutorial, regenerate gifs, tutorial manifest Use when: regenerating tutorial GIFs, updating documentation demos, creating tutorials from tape files DO NOT use when: only updating text - use doc-updates.

balancing accuracy with token efficiency.

Audit shell scripts for correctness, portability, and common pitfalls. Use when reviewing shell scripts, CI scripts, hook scripts, wrapper scripts. Do not use when creating new scripts - use attune:workflow-setup.

Consult this skill when designing storage and documentation systems. Use when organizing knowledge storage, managing configuration lifecycle, creating structured documentation, establishing naming conventions. Do not use when simple storage without lifecycle or structure needs.

Use this skill for Makefile audit and optimization. Use when auditing Makefiles, reviewing build system, checking portability, eliminating recipe duplication. Do not use when creating new Makefiles - use abstract:make-dogfood. DO NOT use when: architecture review - use architecture-review.

Post-process video files and generate optimized GIFs. Converts webm/mp4 to GIF with configurable quality settings.

AWS cost optimization, monitoring, and operational excellence expert. Use when analyzing AWS bills, estimating costs, setting up CloudWatch alarms, querying logs, auditing CloudTrail activity, or assessing security posture. Essential when user mentions AWS costs, spending, billing, budget, pricing, CloudWatch, observability, monitoring, alerting, CloudTrail, audit, or wants to optimize AWS infrastructure costs and operational efficiency.

AWS Cloud Development Kit (CDK) expert for building cloud infrastructure with TypeScript/Python. Use when creating CDK stacks, defining CDK constructs, implementing infrastructure as code, or when the user mentions CDK, CloudFormation, IaC, cdk synth, cdk deploy, or wants to define AWS infrastructure programmatically. Covers CDK app structure, construct patterns, stack composition, and deployment workflows.

AWS Bedrock AgentCore comprehensive expert for deploying and managing all AgentCore services. Use when working with Gateway, Runtime, Memory, Identity, or any AgentCore component. Covers MCP target deployment, credential management, schema optimization, runtime configuration, memory management, and identity services.

Configure AWS MCP servers for documentation search and API access. Use when setting up AWS MCP, configuring AWS documentation tools, troubleshooting MCP connectivity, or when user mentions aws-mcp, awsdocs, uvx setup, or MCP server configuration. Covers both Full AWS MCP Server (with uvx + credentials) and lightweight Documentation MCP (no auth required).

AWS serverless and event-driven architecture expert based on Well-Architected Framework. Use when building serverless APIs, Lambda functions, REST APIs, microservices, or async workflows. Covers Lambda with TypeScript/Python, API Gateway (REST/HTTP), DynamoDB, Step Functions, EventBridge, SQS, SNS, and serverless patterns. Essential when user mentions serverless, Lambda, API Gateway, event-driven, async processing, queues, pub/sub, or wants to build scalable serverless applications with AWS best practices.