Skill Claude CodeCodex
Author and operate Kubernetes workloads with kubectl and YAML manifests — the kubectl CLI plus core resource authoring (Pods, Deployments, StatefulSets, Jobs/CronJobs, Services, Ingress, ConfigMaps/Secrets, PV/PVC, RBAC). Use when writing or debugging Kubernetes manifests, running kubectl…
Skill Claude Code
Managing Linear issues, projects, and teams. Use when working with Linear tasks, creating issues, updating status, querying projects, or managing team workflows.
Skill Claude CodeCodex
Write mathematics in a long-form, understanding-focused style with detailed proofs and rich exposition. Use when explaining mathematical concepts, writing proofs, tutoring math, creating educational math content, or when the user asks for mathematical explanations. Inspired by Jay Cummings' Real Analysis and…
Skill Claude CodeCodex
Generate, validate, and fix diagrams from Mermaid markup using the mermaid-cli (mmdc) tool. Use when creating flowcharts, sequence diagrams, class diagrams, state diagrams, ER diagrams, Gantt charts, pie charts, mindmaps, or any Mermaid-supported diagram type. Also use when validating, verifying, or fixing Mermaid…
Skill Claude CodeCodex
Install and maintain a "model routing" section in a project's CLAUDE.md that teaches Claude Code which model to use for which work — including delegating to GPT models via the Codex CLI. Use when the user wants to add model-picking guidance to CLAUDE.md, set up Codex/GPT as a delegation target or fallback, route…
Skill Claude CodeCodex
Create and edit Obsidian Bases (.base files) with views, filters, formulas, and summaries. Use when working with .base files, creating database-like views of notes, or when the user mentions Bases, table views, card views, filters, or formulas in Obsidian.
Skill Claude CodeCodex
Create and edit Obsidian Flavored Markdown with wikilinks, embeds, callouts, properties, and other Obsidian-specific syntax. Use when working with .md files in Obsidian, or when the user mentions wikilinks, callouts, frontmatter, tags, embeds, or Obsidian notes.
Skill Claude CodeCodex
Skill "oxfmt" from dashed/claude-marketplace, covering oxfmt — js/ts (and friends) formatter, ⚠️ read this first: bare oxfmt rewrites your files, the differences that will change your diff, everyday commands and what oxfmt actually formats.
Skill Claude CodeCodex
Skill "oxlint" from dashed/claude-marketplace, covering oxlint — javascript/typescript linter, the five things that surprise people, prerequisites, everyday commands and plugins — the big footgun.
Skill Claude CodeCodex
Browser automation with Playwright for Python. Use when testing websites, taking screenshots, filling forms, scraping web content, or automating browser interactions. Triggers on browser, web testing, screenshots, selenium, puppeteer, or playwright.
Skill Claude CodeCodex
PostgreSQL server administration & operations — DBA work on a running cluster. Use when configuring a server (postgresql.conf, ALTER SYSTEM, reload vs restart, GUCs), managing roles & privileges (CREATE ROLE, GRANT/REVOKE, DEFAULT PRIVILEGES, predefined roles, membership), authentication (pghba.conf, scram-sha-256…
Skill Claude CodeCodex
PostgreSQL extension management and the bundled contrib catalog. Use when running CREATE EXTENSION / ALTER EXTENSION ... UPDATE / DROP EXTENSION, listing extensions (\dx, pgavailableextensions), or choosing which contrib module enables a feature — FDWs (postgresfdw, dblink, filefdw), trigram/fuzzy search (pgtrgm…
Skill Claude CodeCodex
PostgreSQL query & performance tuning — reading EXPLAIN / EXPLAIN ANALYZE plans, choosing and designing indexes, fixing planner row-estimate errors with statistics, and diagnosing MVCC bloat / VACUUM. Use when a query is slow, when reading an EXPLAIN/EXPLAIN ANALYZE plan (seq vs index vs bitmap scan…
Skill Claude CodeCodex
The PostgreSQL SQL dialect and data types that set Postgres apart from generic SQL. Use when writing or debugging Postgres-specific SQL — upsert (INSERT ... ON CONFLICT DO UPDATE/NOTHING), RETURNING (incl. OLD/NEW), MERGE, CTEs (WITH/MATERIALIZED/recursive/data-modifying), window frames, GROUPING SETS/CUBE/ROLLUP…
Skill Claude CodeCodex
Skill "psql" from dashed/claude-marketplace, covering psql — postgresql interactive terminal, when to use this skill, prerequisites & version note, the psql cli at a glance and connecting.
Skill Claude CodeCodex
Datadog CLI (pup) for observability, monitoring, logs, APM, security, and infrastructure. Use when querying Datadog metrics, searching logs, managing monitors, investigating incidents, checking SLOs, running APM traces, managing dashboards, or performing any Datadog API operation via CLI. Triggers on mentions of pup…
Skill Claude CodeCodex
The pytest testing framework and its Python-specific idioms — the things that set pytest apart from unittest and generic testing. Use when writing, running, debugging, or configuring Python tests with pytest — plain assert (rewritten for rich introspection), dependency-injected @pytest.fixture (scopes, autouse…
Skill Claude Code
Two censuses of Python complexity, no project install: per function (ruff's C901 cyclomatic and complexipy cognitive, read as a pair) and per call path — hops entered per public call, pass-through layers, a selector parameter compared in many places, intermediate types — for code where every function scores low and…
Skill Claude CodeCodex
React and Next.js performance optimization guidelines from Vercel Engineering. Use when writing, reviewing, or refactoring React/Next.js code for optimal performance. 62 rules across 8 categories covering waterfalls, bundle size, server-side, re-renders, and rendering. Triggers on React components, Next.js pages, data…
Skill Claude CodeCodex
A fast, gitignore-aware command-line tool for recursively searching file contents by regular expression — a smarter, faster grep. Use when searching code or text for a pattern across a directory tree, filtering matches by file type or glob, listing/counting matching files, doing search-and-replace previews, or running…
Skill Claude CodeCodex
Ruff is one binary that is two tools, and keeping them apart is the whole mental model.
Skill Claude CodeCodex
Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, update or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.
Skill Claude CodeCodex
Review and ensure skills maintain high quality standards. Use when creating new skills, updating existing skills, or auditing skill quality. Checks for progressive disclosure, mental model shift, appropriate scope, and documentation clarity.
Skill Claude CodeCodex
Configure the Claude Code status line with VCS-aware scripts showing git branch, jj change ID, bookmarks, context usage, and costs. Use when setting up a statusline, customizing the status bar, adding git or jj info to the prompt, configuring statusLine in settings.json, or troubleshooting statusline scripts.
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: