Cloud infrastructure design and infrastructure-as-code (IaC) authoring. Use for Terraform module authoring, AWS CDK constructs, cloud architecture design (VPCs, load balancers, managed services, serverless), multi-region and disaster-recovery patterns, cost-optimisation analysis, and IaC code review. Trigger phrases: "write Terraform for", "design the AWS architecture", "set up a VPC", "convert this to CDK", "optimise our cloud costs". NOT for application-layer code — this skill models infrastructure, not the code running on it. NOT for Kubernetes application manifests (Deployments, Services, Ingress) — those belong in a k8s-specific skill. NOT for CI/CD pipeline configuration — that is a deployment concern separate from infrastructure provisioning.
Competitive intelligence and market positioning analysis for product and GTM decisions. Use for competitor landscape mapping, positioning gap identification, win/loss pattern synthesis, battlecard creation, market-sizing estimates (TAM/SAM/SOM), and differentiation analysis. Trigger phrases: "map the competitive landscape", "create a battlecard for", "analyse our win/loss patterns", "how do we differentiate from", "size this market". NOT for primary market research (customer interviews, surveys) — this skill works from existing public and internal data. NOT for financial modelling or investor decks — competitive context informs the story but this skill does not build financial projections. NOT for pricing strategy deep-dives — pricing has its own set of constraints and frameworks beyond competitive positioning.
Database design and schema engineering for relational databases. Use for SQL schema design, ORM model authoring, migration strategies (Alembic, Liquibase, Flyway, Drizzle), query optimisation, indexing decisions, normalisation vs denormalisation trade-offs, and data-integrity constraints. Trigger phrases: "design this schema", "write a migration", "optimise this query", "model these entities", "add an index". NOT for NoSQL/document stores — use a dedicated NoSQL skill for those. NOT for ETL pipelines or data warehousing at scale — those involve different trade-offs. NOT for ORM configuration (framework setup) — this skill is about DATA SHAPE, not connection pooling or ORM bootstrap.
Email content writing for newsletters, drip sequences, onboarding flows, and transactional emails. Use for newsletter drafting, automated drip sequence copy, welcome email series, subject line and preview text optimisation, re-engagement emails, and plain-language transactional email (receipts, confirmations, alerts). Trigger phrases: "write a newsletter", "draft an onboarding email sequence", "write a subject line", "write a drip campaign", "create a welcome email". NOT for email infrastructure setup (ESP config, sending domains, DKIM/DMARC) — that is a technical ops concern. NOT for social media content — use the social-media-content skill for LinkedIn or Twitter. NOT for cold outreach / sales prospecting emails — those have compliance and conversion constraints beyond marketing content.
Structured research and evidence synthesis for knowledge-intensive tasks. Use for multi-source research coordination, evidence triangulation across conflicting sources, competing-hypothesis analysis, literature/documentation sweeps, claim verification, and synthesis reports. Trigger phrases: "research this topic", "synthesise findings from", "compare sources on", "what does the evidence say about", "triangulate these claims". NOT for primary data collection (interviews, surveys) — this skill synthesises existing sources. NOT for code research or codebase exploration — use CodeGraph and Semble for that. NOT for creative content generation — synthesis produces structured analysis, not narrative content.
Application security design and threat-informed engineering. Use for authentication and authorisation architecture (OAuth2, JWT, RBAC, ABAC), OWASP Top 10 vulnerability analysis, secrets management (Vault, AWS Secrets Manager, environment isolation), input validation patterns, secure API design, SQL injection and XSS prevention, and security-aware code review. Trigger phrases: "secure this endpoint", "design an auth system", "review this for security vulnerabilities", "how do I store secrets", "implement RBAC". NOT for network/infrastructure security (firewalls, VPNs, WAF config) — those belong in cloud-infrastructure. NOT for compliance auditing (SOC2, GDPR gap assessments) — that requires a compliance specialist. NOT for penetration testing or red-teaming — this skill is for defensive engineering, not offensive exercises.
Short-form social media content for LinkedIn, Twitter/X, and similar platforms. Use for LinkedIn post drafting, Twitter/X thread writing, hook-first content structures, platform-native tone calibration, hashtag strategy, and engagement-optimised formatting. Trigger phrases: "write a LinkedIn post", "draft a Twitter thread", "turn this into a thread", "write a social post about", "make this shareable". NOT for long-form blog articles or newsletters — use the storytelling or email-marketing skill for those. NOT for ad copy or paid social — those have conversion-optimisation constraints beyond organic content. NOT for content calendars or scheduling strategy — this skill writes the content, not the plan.
Interact with and integrate Hindsight long-term AI memory in Claude Code via the `hindsight` CLI. Use for recalling past context, reflecting over a memory bank, retaining facts/decisions, managing banks/entities/mental-models, and understanding the auto-recall/auto-retain hooks this plugin installs. Trigger phrases: "what do I remember about", "recall from my memory", "reflect on my past work", "retain this", "save to my memory bank", "hindsight memory", "check my long-term memory", "is memory working". NOT for short-term session context (Claude already has the transcript), NOT for code/structural search (use CodeGraph/Semble/grep), NOT for building a memory framework from scratch (use the memory-systems skill).