How to work in a Personal CRM project (the `entity-vault` starter pack, GBrain-compatible): a typed-entity vault of people, companies, meetings, and concepts, each a dossier with a rewritable summary plus an append-only timeline. Read when the project has these folders, OR when asked to capture notes about a person or company, log a meeting, prep for an upcoming meeting, or answer who someone is and what was last said. Carries the dossier convention and entity-extraction behaviors so that guidance does not live inside template bodies or folder descriptions. Complements the platform `open-knowledge` skill; does not replace it.

Sync Obsidian Tasks or TaskNotes with Apple Reminders or Things 3 — two-way sync, surgical edits, tag mapping, menu-bar app for macOS

A Claude Code skill that structures long coding tasks as a graph with executor and supervisor nodes to prevent drift.

AI agent skills for Israeli tax, invoicing, VAT, and financial systems

Generate comprehensive Product Requirement Plans (PRPs) for feature implementation with thorough codebase analysis and external research. Use when the user requests a PRP, PRD, or detailed implementation plan for a new feature. Conducts systematic research, identifies patterns, and creates executable validation gates for one-pass implementation success. Do NOT use for client discovery, requirements gathering, or scope definition - those need a separate clarification pass before the PRP step.

Generate a plain-language project overview, comprehensive engineer status update, and surgical documentation enhancement. Reads project docs, specs, dependencies, and git history. Use when onboarding, returning from time off, refreshing stale docs, or preparing project overviews.

16-dimension security posture assessment with adaptive activation, health scoring, and remediation plan. Covers application security, infrastructure, auth, crypto, privacy, supply chain, and more. Use when assessing security posture, auditing code for vulnerabilities, reviewing compliance, or preparing for security reviews.

17-dimension observability audit with tier activation, health scoring, and cost analysis. Covers logging, metrics, tracing, alerting, SLOs, profiling, security observability, and developer experience. Use when assessing observability posture, identifying telemetry gaps, or optimizing observability costs.

16-dimension test suite audit with depth control (quick/standard/deep), gap matrix, and health scoring. Covers coverage, quality, mocking, data management, CI/CD, performance, mutation testing, and modern patterns. Use when evaluating test suite quality, identifying testing gaps, or assessing test infrastructure health.

Deep research and analysis workflow for codebases, technologies, domains, ideas, or data. Produces structured documentation with analytical frameworks, confidence-graded findings, and cited sources. Use when evaluating technologies, investigating domains, assessing feasibility, or analyzing codebases in depth.

Comprehensive guide for Google Apps Script development covering all built-in services (SpreadsheetApp, DocumentApp, GmailApp, DriveApp, CalendarApp, FormApp, SlidesApp), triggers, authorisation, error handling, and performance optimisation. Use when automating Google Sheets operations, creating Google Docs, managing Gmail/email, working with Google Drive files, automating Calendar events, implementing triggers (time-based, event-based), building custom functions, creating add-ons, handling OAuth scopes, optimising Apps Script performance, working with UrlFetchApp for API calls, using PropertiesService for persistent storage, or implementing CacheService for temporary data. Covers batch operations, error recovery, and JavaScript ES6+ runtime. Do NOT use for standalone Node.js scripts, Google Cloud Functions, Cloud Run, or any non-Apps-Script JavaScript runtime - those use different APIs and quotas.

Schedule recurring CALL-E phone-call reminders, scheduled CALL-E calls, call-me-at-a-time requests, and remind-me-by-phone workflows by wrapping the existing one-off CALL-E call workflow in the current client's scheduler or automation system.