obsidian-development

Constraint Satisfaction Problems and combinatorial optimization with Google OR-Tools CP-SAT solver

RabbitMQ and AMQP messaging - queue configuration, exchange routing, clustering, high availability, and event-driven architecture optimization (RabbitMQ 4.3 coverage: Khepri-only metadata store, quorum queue priorities and delayed retries, streams, MQTT 5, AMQP 1.0 SQL filters) plus a production knowledge base skill

Comprehensive app analysis for Android (ADB) and web (Playwright MCP) - navigation mapping, competitive analysis, design system extraction, UX flow analysis, and business model intelligence

Structural entropy auditor: finds where the same concept is represented, owned, computed or implemented more than once, and what it costs when that concept changes. Seven dimensions over two evidence tracks. Knowledge track (duplicated domain knowledge, competing sources of truth, redundant representation, duplicated or derivable state) is judged by semantic identity and ownership, so two representations suffice behind a strict gate. Form track (missed unification, prior art available, abstraction fitness) is judged by recurrence, where the Rule of Three applies to missed unification only. Global mode censuses the codebase and persists a concept index; diff mode asks the same seven questions as 'introduced or aggravated by this change' and runs as the Abstraction dimension of /senior-review:team-review and /senior-review:code-review. Report-only, grounded in canonical theory (Metz, Beck, Fowler, Gross, North, DDD).

Skill

libGDX cross-platform game development - project generation via gdx-liftoff, rendering pipeline (SpriteBatch, TextureAtlas, viewports), Scene2D + Ashley ECS architecture, Box2D physics, AssetManager lifecycle, Screen management, Tiled maps, and deployment to Desktop (LWJGL3), Android, iOS (RoboVM), and HTML5 (GWT/TeaVM); includes libGDX 1.14.0 migration notes and a /libgdx-audit command

Legal advisory, compliance document generation, and SaaS business planning - Privacy Policies, Cookie Policies, DPAs, GDPR/ePrivacy/CCPA compliance, contract review, GTM strategy, market sizing, pricing, and positioning

Project configuration and setup tools including CLAUDE.md creation and maintenance with ground truth validation. The maintain flow preserves existing references and information by default - removal requires cross-verification proving the content false or obsolete (else: keep, extract to docs/, or ask the user) - and surfaces every single drift to the user via AskUserQuestion before applying any change (no batch-auto-fix, default on unanswered = leave unchanged). Includes a Phase 4b internal-duplication detection pass: file paths, pointers, and external resources are counted across the document; reference outliers (one path appearing N>1 times while peers appear once), conceptual restatements, and weak-justification duplicates (e.g., 'scannability' for jumping readers) are surfaced as per-drift questions with all N occurrences, peer-group comparison, and concrete merge/keep/cross-reference/extract options. Dedup merges are treated as deletions and require explicit per-item approval. Enforces a hard 40,000-character cap on CLAUDE.md (Claude Code performance warning threshold) by extracting bloated sections to docs/ via thin pointers. The project-structure section is required to document the EVERGREEN shape (top-level layout + repeating structural patterns + role per category), not an exhaustive file-by-file tree; file-by-file annotation is justified only where names alone are ambiguous, where the file is a key entry point, or to disambiguate siblings. Exhaustive file-by-file trees in existing CLAUDE.md files are flagged as Medium consolidation candidates (high decay risk, tokens without evergreen value) and surfaced as per-finding questions (consolidate / extract to docs/ / keep / skip), never collapsed autonomously. Generated CLAUDE.md files always include a canonical Working Principles section with 5 principles (4 inspired by upstream agentic-coding meta-rules: Think Before Coding, Simplicity First, Surgical Changes, Goal-Driven Execution; plus the locally authored Centralize Shared Logic for DRY / Single Source of Truth across external calls and cross-cutting concerns). Each of principles 1-4 ships with 3 inline sub-bullets covering the deeper meta-rules (root-cause analysis, evergreen tests, surgical diffs) so the block is self-contained and never linked out. The create/maintain flows auto-detect .codebase-xray/ output and offer to ingest it as the technical-reference backbone. When the project has a test suite, generated CLAUDE.md files also carry a canonical Test-Suite Rules block (7 binding rules condensed from the testing plugin's hygiene knowledge base: search before writing, mirrored placement, explicit layers, behavior over implementation, no skip markers, assertion integrity, delete tests with the feature), offered on create and verified on audit; projects without tests do not get the block.

Full frontend review in one pass, combining a design/UX dimension driven by the impeccable, ui-ux-pro-max, and frontend-design upstream skills as hard prerequisites with stop-and-install, with auto-detected code dimensions (React performance, TypeScript type safety, PWA architecture, platform compliance) spawned from local plugins declared as hard dependencies, so a dimension is skipped only when its signal does not match. Findings consolidate into a unified scored report at .frontend-review/report.md. Pure orchestration; vendors nothing.

Progressive Web App expert for the 2025-2026 baseline. Covers Web App Manifest (id, display_override, scope_extensions, handle_links, file_handlers, share_target), Service Workers (Workbox 7 / Serwist), Web Push (VAPID, RFC 8030/8291/8292, Declarative Push for Safari 18.4+), install flows (beforeinstallprompt, Window Controls Overlay), OPFS storage, Project Fugu capabilities, Core Web Vitals 2025 (INP < 200ms), security (HTTPS, CSP, COOP/COEP), and distribution (Bubblewrap to Google Play, PWA Builder to Microsoft Store, Capacitor to App Store, PWA Builder to Meta Quest). Includes the pwa-architect agent and three commands: /pwa-audit (hybrid local-code + live-URL via Playwright), /pwa-scaffold (manifest + SW + iOS meta + framework wiring for Vite, Next.js, Angular, Nuxt, vanilla), /pwa-checklist (deterministic production-deploy checklist walk).