Agent Reliability Advanced
Agent reliability anti-patterns — retrying non-retryable errors, fixed sleep vs exponential backoff with jitter, single timeout for all call stack levels, aggressive circuit breaker thresholds, using Opus for every call regardless of complexity.
Project Guidelines Example
Example project-specific skill template based on a real production application.
Autonomous Loops
Autonomous loop patterns for Claude — sequential pipelines, NanoClaw REPL, infinite agentic loops, continuous PR loops, De-Sloppify, and Ralphinho RFC-driven DAG orchestration. Pattern selection matrix and anti-patterns.
Android Testing
Android testing — Compose UI tests with semantic selectors, Hilt dependency injection in tests, Room in-memory database tests, Espresso, MockK, Coroutine test dispatcher, and screenshot testing.
Accessibility Patterns Advanced
Advanced accessibility patterns — screen reader testing (NVDA/VoiceOver/TalkBack checklists), automated testing (axe-core+Playwright, jest-axe, @axe-core/react dev warnings), and accessible component implementations (modal, table, form, data visualization).
Api Contract
Contract-First API design — write OpenAPI 3.1 or AsyncAPI 3.0 specs before implementation, generate or validate code against them, detect breaking changes in CI, and apply Consumer-Driven Contract Testing with Pact.
Android Patterns
Android/Jetpack Compose patterns — state hoisting, UDF with ViewModel/UiState, side effects (LaunchedEffect/rememberUpdatedState), Material Design 3 components, type-safe Navigation, Hilt DI, Room database, and Compose performance (derivedStateOf, key).
Bash Testing
Bash script testing with BATS (Bash Automated Testing System): test structure, assertions, setup/teardown, mocking external commands, CI integration, and coverage strategies.
Backstage Patterns
Backstage patterns: Software Catalog (catalog-info.yaml, kinds, relations, lifecycle), TechDocs (MkDocs, techdocs-cli), Scaffolder templates (CSF3, steps, fetch:template, publish:github), custom plugins (frontend React, backend Express), GitHub App integration, and Chromatic CI.
Api Pagination Filtering
Cursor and offset pagination, filtering operators, multi-field sorting, full-text search, and sparse fieldsets for REST APIs.
Bash Patterns
Idiomatic Bash scripting patterns: script structure, argument parsing, error handling, logging, temp files, parallel execution, and portability. Use when writing or reviewing shell scripts.
Api Design Advanced
Advanced API design — per-language implementation patterns (TypeScript/Next.js, Go/net-http), anti-patterns (200 for everything, 500 for validation, contract breaking), and full pre-ship checklist.
Agent Conflict Resolution
Decision framework for resolving conflicts between clarc agents — priority hierarchy, conflict classes, escalation protocol, and real-world examples
Api Contract Advanced
Advanced API contract patterns — AsyncAPI 3.0 for event-driven systems and Consumer-Driven Contract Testing with Pact. Use after the core Contract-First workflow in api-contract.
Agent Reliability
Agent Reliability Patterns: retry with exponential backoff and jitter, timeout hierarchies (tool < agent < workflow), fallback chains, circuit breaker for agent calls, cost control (token budgets, model tiering), rate limiting, and observability (what to log per agent call).
Strategic Compact
Suggests manual context compaction at logical intervals to preserve context through task phases rather than arbitrary auto-compaction.
Api Docs Patterns
API documentation best practices — OpenAPI spec (paths, components, examples, x-webhooks), docs-as-code CI/CD, platform selection (Mintlify/Redoc/Scalar), interactive playgrounds, changelog automation with conventional commits.
Typescript Coding Standards
TypeScript, JavaScript, React, and Node.js coding standards — naming conventions, immutability, error handling, async patterns, component structure, API design.
Arc42 C4
arc42 architecture documentation template (all 12 sections) combined with C4 diagrams (Context, Container, Component, Deployment) in PlantUML. The standard for architecture documentation in this setup. Maps each section to the Claude skills that help fill it.
Api Design
REST API design patterns including resource naming, status codes, pagination, filtering, error responses, versioning, and rate limiting for production APIs.
Android Patterns Advanced
Advanced Android/Jetpack Compose patterns — Compose performance optimization (@Stable/@Immutable, derivedStateOf, key in LazyColumn, lambda capture hoisting), Coroutines with injectable dispatchers, and reference rules/skills.
Article Strategy
Turn a raw idea into a structured article brief — defines audience, angle, core argument, competitive gap, and voice. Use before writing an outline or draft. The output of this skill is a brief that feeds directly into article-writing.
Agent Evolution Patterns
How the agent evolution system works — capturing instincts, promoting them to agent overlays, approval workflow, rollback, and the full continuous-learning flywheel pipeline
Auth Patterns
Authentication and authorization implementation patterns: JWT, sessions (httpOnly cookies), OAuth2/OIDC, API keys, RBAC, and MFA. Covers TypeScript, Python, Go, and Java with security-hardened code examples.
Investor Materials
Create and update pitch decks, one-pagers, investor memos, accelerator applications, financial models, and fundraising materials. Use when the user needs investor-facing documents, projections, use-of-funds tables, milestone plans, or materials that must stay internally consistent across multiple fundraising assets.
Article Writing
Write articles, guides, blog posts, tutorials, newsletter issues, and other long-form content in a distinctive voice derived from supplied examples or brand guidance. Use when the user wants polished written content longer than a paragraph, especially when voice consistency, structure, and credibility matter.
Async Patterns
Asynchronous processing patterns: job queues (BullMQ, Celery, asynq), scheduled cron jobs, event-driven pub/sub, dead letter queues, retry with exponential backoff, and idempotency. Covers TypeScript, Python, and Go.
Analytics Workflow
Data & product analytics workflow: event taxonomy design, instrumentation (Segment, PostHog, Mixpanel, Amplitude, GA4), analytics pipelines, funnel and retention analysis, and dashboard design. Complements observability (infrastructure metrics) with product/user behavior tracking.
Accessibility Patterns
Web Accessibility (WCAG 2.2): key success criteria (contrast, keyboard, focus, ARIA), ARIA patterns (aria-label/labelledby/describedby, roles, live regions, state attributes), keyboard navigation (focus trap, skip links, roving tabindex), screen reader testing (NVDA/VoiceOver/TalkBack), automated testing (axe-core, axe-playwright, jest-axe), and accessible component patterns (modals, tables, form…
Adr Writing
Architecture Decision Records (ADRs): when to write one, the standard template, how to document rejected alternatives with real reasoning, how to supersede outdated ADRs, and how to maintain a living ADR index. The reference for technical documentation that actually gets read.
Html Slides
Create zero-dependency, animation-rich HTML presentations from scratch or by converting PowerPoint/PPTX files. Use when the user wants to build a presentation, convert a deck to web, or create slides for a talk/pitch.
C Patterns
C programming patterns (C11/C17): opaque pointer encapsulation, error handling via return codes and out-parameters, resource cleanup with goto, memory management discipline (malloc/free pairing, double-free prevention), safe string functions (snprintf, fgets, strncpy), Makefile patterns with auto-dependencies, bit manipulation, and AddressSanitizer/Valgrind integration. Use when writing or review…