The cognitive operating system that gives AI coding agents memory, structure, and discipline — knowledge graph, Scrumban board, and an enforced engineering loop.
This repository also configures its own agents. See what coding-os tells them →
Skill Claude CodeCodex
Use when creating or modifying Python files in the src/backend/ directory — Django models, DRF views, serializers, services, selectors, Celery tasks, migrations, or tests. Triggers on any .py file change under src/backend/. Covers architecture patterns (services + selectors), exception hierarchy, error envelope, file…
Skill Claude CodeCodex
Use when creating or modifying Python files under src/backend/ — FastAPI routes, Pydantic models, SQLAlchemy ORM, dependency-injected services, async handlers, and pytest tests. Triggers on any .py file change under src/backend/. Covers route organization, dependency injection, error handling, and async patterns…
Skill Claude CodeCodex
Use when creating or modifying Dart files under src/mobile/ in a Flutter app — screens, widgets, Riverpod providers/notifiers, services, navigation, and their tests. Triggers on any .dart change under src/mobile/. Covers the widget→provider→service layering, the single declarative router, three-state AsyncValue UI…
Skill Claude CodeCodex
Use when creating or modifying Go files under src/backend/ in a Fiber project — handlers, middleware, request validation, graceful shutdown, and table-driven tests with app.Test(). Triggers on any .go file change under src/backend/. Covers idiomatic Fiber v3 (GA 2026, Go 1.25+) patterns plus the Go fundamentals (error…
Skill Claude CodeCodex
Use when creating or modifying Go files under src/backend/ — HTTP handlers, services, stdlib net/http routers, context propagation, and table-driven tests. Triggers on any .go file change under src/backend/. Covers idiomatic Go, error wrapping, context handling, and concurrency patterns.
Skill Claude CodeCodex
Use when creating or modifying PHP files under src/backend/ in a Laravel application — routes, controllers, services, Eloquent models, Form Requests, middleware, and their tests. Triggers on any .php change under src/backend/. Covers thin controllers, the exception Handler as the single error shaper, Form Request…
Skill Claude CodeCodex
Use when authoring code that uses Anthropic's Claude SDK or the claude-agent-sdk inside the meta-repo — primarily src/adapters/claude/sdkdispatcher.py and the formula composer pipeline that spawns Claude Code sub-sessions. Covers prompt caching, tool-use loop, model selection (Fable 5, Opus 4.8, Sonnet 5, Haiku 4.5)…
Skill Claude Code
Author the graphos knowledge-graph internals — extractors, backends, indexers, queries. Use when adding a new node/edge type, writing a new extractor (Python AST, doc-headings, etc.), evolving the SQLite backend, or modifying the reindex dispatcher. Enforces idempotency on uid, append-only fileindexstate…
Skill Claude Code needs its repo
Author production-grade hooks for the coding-os meta-repo — Bash scripts under src/core/hooks/ and Python helpers under src/core/hooks/helpers/. Enforces SSOT registration in registry.yaml (Rule 10), source cos-env.sh (Rule 3), agent-agnostic env vars not hardcoded .claude/ (Rule 1, P2), proper event/matcher…
Skill Claude CodeCodex needs its repo
Author production-grade MCP (Model Context Protocol) tools for the coding-os meta-repo. Use when adding a new cos tool to src/core/thinkingos/tools/, src/core/graphos/tools/, src/core/boardos/mcptools.py, or src/core/web/routes/ — the four canonical authoring surfaces. Enforces the @safetool envelope (Rule 13), name…
Skill Claude CodeCodex
Use when authoring inside coding-os itself — core/, cli/, adapters/, templates/, or src/core/hooks/. Enforces three-layer mental model (DNA → mRNA → phenotype), graph-first edit discipline, regen pipelines, dogfood verification, and the contract that meta-repo changes propagate to every consumer project. Pairs with…
Skill Claude CodeCodex
Use when authoring or modifying Python code in the meta-repo's server / kernel — MCP tools (src/core/thinkingos/), graph extractors (src/core/graphos/), board engine (src/core/boardos/), hooks helpers (src/core/hooks/helpers/), and CLI (cli/). Codifies the FastMCP envelope contract, type-hint discipline, async…
Skill Claude CodeCodex
Use when authoring or modifying the meta-repo's Hub UI in src/core/web/ui/ — React 18 + Vite + TypeScript + Sigma.js graph canvas + zustand state. Covers the contract between FastAPI routes (src/core/web/routes/) and the SPA, env vars (VITE), build pipeline, hot-reload dev mode, and how the Hub UI proxies into…
Skill Claude CodeCodex
Use when creating or modifying TypeScript files under src/backend/ in a NestJS service — modules, controllers, providers (services), guards, pipes, interceptors, DTOs, and their tests. Triggers on any .ts change under src/backend/. Covers module/DI wiring, thin controllers, the global exception filter, the global…
Skill Claude CodeCodex
Use when creating or modifying React components, pages, layouts, or hooks in the Next.js frontend. Triggers on any .tsx/.ts file change under src/frontend/. Covers Server Component defaults, hydration safety, three-state async UI, error display mapping, localStorage SSR guards, and component extraction rules.
Skill Claude CodeCodex
Use when creating or modifying TypeScript files under src/backend/ in an Express service — routers, middleware, services, repositories, and their tests. Triggers on any .ts change under src/backend/. Covers router organization, middleware ordering, the central error handler, async handler wrapping, and request…
Skill Claude CodeCodex
Use when creating or modifying Ruby files under src/backend/ in a Ruby on Rails service — controllers, ActiveRecord models, routes.rb, concerns, migrations, the rescuefrom error chain, and their RSpec specs. Triggers on any .rb change under src/backend/. Covers thin controllers + strong parameters, model-owned…
Skill Claude CodeCodex
Use when creating or modifying React Native screens, components, hooks, or native bridges in the mobile app. Triggers on any .ts/.tsx file change under src/mobile/. Covers Hermes + Reanimated worklet constraints, three-state async UI, offline-first sync queues, navigation patterns, and a11y for VoiceOver / TalkBack.
Skill Claude CodeCodex needs its repo
React Native 0.76+ (New Architecture) patterns specific to bare RN apps with TypeScript. Use when writing or reviewing screens, hooks, native modules, navigation, or anything platform-specific in a bare React Native project. Covers the New Architecture (Fabric + TurboModules), Hermes-aware code, JSI bridges…
Skill Claude CodeCodex
Use when creating or modifying Rust files under src/backend/ in an Axum service — handlers, the router (app.rs), extractors/DTOs, the central AppError IntoResponse error shaper, tower middleware layers, Arc shared state, and their tokio tests. Triggers on any .rs change under src/backend/. Covers thin async handlers…
Skill Claude CodeCodex
Use when creating or modifying Java files under src/backend/ in a Spring Boot service — the @SpringBootApplication bootstrap, @RestController endpoints, @Service beans, Spring Data repositories, the global @RestControllerAdvice, @ConfigurationProperties, DTOs, and their tests. Triggers on any .java change under…
Skill Claude CodeCodex
Use when creating or modifying Svelte/TypeScript files under src/frontend/ in a SvelteKit app — routes (+page/+layout), load functions, .svelte components, $lib stores, and server endpoints (+server.ts). Triggers on any .svelte or .ts change under src/frontend/. Covers file-based routing, universal vs server load, the…
Skill Claude CodeCodex
Use when creating or modifying Vue/TypeScript files under src/frontend/ in a Nuxt 3 app — pages, components, composables, Pinia stores, and Nitro server routes. Triggers on any .vue or .ts change under src/frontend/. Covers file-based routing, auto-imports, SSR-safe data fetching, and composable conventions. Generic…
Skill Claude Code
Build secure WordPress plugins and themes the WordPress way — hooks (actions/filters), nonces, capability checks, sanitize-on-input/escape-on-output, $wpdb->prepare, proper script enqueuing, and the REST API. Use when writing or reviewing a plugin/theme, hardening WP request handling, hooking into core, registering a…
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: