opencastle

Manages Sanity CMS schemas, GROQ queries, dataset exports/imports, and Studio configuration. Use when updating Sanity schemas, running GROQ or Vision queries, exporting datasets, modifying content models, or configuring a headless CMS with Sanity.io.

Security architecture: authentication, authorization, RLS policies, CSP, input validation, API security. Use when implementing auth flows, writing RLS policies, configuring CSP/headers, validating inputs, or auditing security. Trigger terms: RLS, CSP, Server Actions, Zod, auth flow

Appends new entries to LESSONS-LEARNED.md via opencastle lesson CLI; searches past lessons for matching errors; proposes skill updates when retry patterns exceed thresholds. Use when consulting or updating LESSONS-LEARNED.md, after task failures, when capturing retrospective insights, or when a retry succeeds.

Sentry error monitoring, SDK initialization, performance tracing, source maps, session replay, and release tracking. Use when adding Sentry to a project, capturing errors with context, setting up distributed tracing, configuring source maps, or debugging production issues.

Implements technical SEO: meta tags, JSON-LD structured data, sitemaps, crawlability fixes. Use when adding schema markup, JSON-LD, robots.txt updates, canonical URLs, Open Graph tags, or improving crawlability.

Saves, restores session state including task progress, file changes, delegation history. Use when saving progress, resuming interrupted work, picking up where you left off, or checkpointing current work.

Slack MCP integration for agent-to-human notifications and bi-directional communication. Use when agents need to post progress updates, request approvals, or read user responses via Slack channels and threads.

Builds Strapi content types, extends controllers and services, implements lifecycle hooks, and configures REST/GraphQL APIs. Use when creating content types, writing custom controllers, developing Strapi plugins, or querying the API.

Stripe payment integration patterns, Checkout Sessions, billing/subscriptions, Connect platforms, and API best practices. Use when building, modifying, or reviewing any Stripe integration — including accepting payments, building marketplaces, setting up subscriptions, or implementing secure key handling.

Generates Supabase database migrations, writes RLS policies with auth.uid(), configures auth integration, and generates TypeScript types. Use when creating tables, writing migrations, configuring RLS, or implementing Supabase auth.

Provides model routing rules, validates delegation prerequisites, supplies cost tracking templates, defines dead-letter queue formats for Team Lead orchestration. Load when assigning tasks to agents, choosing model tiers, starting delegation session, running multi-agent workflow, delegating work, choosing which model to use, or assigning tasks.

Microsoft Teams MCP integration for agent-to-human notifications and bi-directional communication. Use when agents need to post progress updates, request approvals, or read user responses via Teams channels and chats.

Four-layer standard for technical prose: Diataxis document modes, Google developer style sentences, Simplified Technical English instruction rules, Global English disambiguation. Use when writing or reviewing docs, RFCs, README files, PR descriptions, or commit messages.

Generates test plans, writes unit/integration/E2E test files, identifies coverage gaps, flags common testing anti-patterns. Use when writing tests, creating test suites, planning test strategies, mocking dependencies, measuring code coverage, or test planning.

Create and manage Trello cards, checklists, and boards for kanban workflows. Use when the user says: 'create a kanban board', 'add a task card', 'move card to sprint', or 'track project board'.

Configure pipelines, set up local/remote caching, and run scoped tasks in a Turborepo monorepo. Use when you say: 'enable remote caching', 'optimize pipeline inputs/outputs', or 'filter builds to affected packages'.

Type-level discipline for TypeScript: discriminated unions, branded types, constructive modeling, narrowing hierarchy, exhaustiveness checks, boundary validation. Use when reading or editing any .ts or .tsx file, modelling domain types, or refactoring an `as` cast out of existing code.

Removes AI tells from prose: puffery, AI vocabulary, em dashes, inline-header lists, hedging, filler, and abstract metaphor nouns. Use when writing or editing any prose a human reads, including README files, docs, PR descriptions, commit messages, changelogs, release notes, and marketing copy.

Defines 10 sequential validation gates: secret scanning, lint/test/build checks, blast radius analysis, dependency auditing, browser testing, cache management, regression checks, smoke tests. Use when running pre-deploy validation or CI checks, CI/CD pipelines, deployment pipeline validation, pre-merge checks, continuous integration, or pull request validation.

Vercel deployment workflows, environment management, domain configuration, and build troubleshooting. Use when deploying, checking deployment status, reviewing build logs, or managing environments.