Find the open-source solution that fits.

atomizekit turns a topic into a blog post, native drafts for seven platforms, branded image cards, and voiced short-form video, then gathers the files in a local review dashboard. It configures itself from the host project's brand assets and can track gaps in AI-answer citations. Everything remains draft-only for human posting, and video output requires tools such as FFmpeg and Chrome.

Countries API Skill helps an agent choose endpoints and parameters for the free countries.dev REST API. It covers country and border data, cities and reverse geocoding, postal codes, IP geolocation, reference data, and great-circle distance. No API key or signup is required, and the repository includes a full endpoint reference for Claude Code or other compatible agents.

humanize shapes prose as it is generated or cleans an existing draft while preserving quoted text, citations, numbers, and proper nouns. It adjusts style for the document’s register, can learn a reusable voice profile from writing samples, and includes a standard-library Python linter for CI. The linter detects mechanical patterns and density; it does not prove whether a person or model wrote the text.

Use targeted techniques such as blind-spot scouting, one-question-at-a-time interviews, reference-code inspection, divergent prototypes, planning notes, and post-change quizzes to clarify ambiguous work. For higher-stakes tasks, Cartographer mode keeps an unknowns ledger, prioritizes gaps by regret, and blocks implementation until coverage and ambiguity gates pass. The framework runs as Markdown inside Claude Code, with optional specialist agents.

page-foundry runs a page brief through positioning, copy, conversion, and design steps, then returns either self-hostable static HTML or a copy-and-design handoff package. It enforces voice consistency, rejects fabricated proof, and checks accessibility and performance before shipping. The orchestrator can fall back to condensed built-in rules when recommended companion skills are missing, but it identifies that run as partial rather than implying full coverage.

Fable Workflow teaches coding agents to inspect the real codebase and expose unspecified decisions before implementation instead of guessing silently. During the work it records assumptions and deviations, then asks for verification evidence before declaring completion. The Claude Code plugin adds advisory hooks and an optional strict stop gate, though its heuristics can occasionally misfire.

voiceprint profiles your style from five to ten of your own posts or emails, measuring rhythm, punctuation, signature moves, and never-dos. It renders raw thoughts in that voice without inventing anecdotes, leaves a placeholder for examples only you can supply, and attaches counted comparisons to your baseline. It reports receipts rather than an AI-or-human verdict, and updates the profile from your edits.

MeteoSwiss LLM Tools brings Switzerland’s official open weather data to AI assistants, covering multi-day forecasts, live station measurements, station discovery, pollen monitoring, and website content. You can use a hosted or self-hosted MCP server, or install an agent skill that calls the APIs directly over HTTP. The server route needs Node.js 22+ or Docker; the skill route uses curl, awk, and jq, with no API key required.

Ask the plugin to review a command-line tool in the current project, and it will exercise real commands rather than judging documentation alone. Parallel evaluators test discovery, help, errors, output, accessibility, safety, and other criteria before producing a scored report, remediation plan, metrics file, and regression script. Its scope is UX and developer experience, not internal code architecture, and the evaluation does execute the target CLI.

Codex Skill adds a Claude Code command that sends implementation work to the non-interactive `codex exec` workflow. Safe, Auto, and YOLO modes let users choose how much oversight to retain, while Git integration tracks changes and supports rollback. The plugin requires Codex CLI and an OpenAI API key; full-autonomy mode is intended only for hardened environments.

CI Doctor scans GitHub Actions configuration for Node.js version mismatches, masked failures, missing package caches, duplicate build steps, broken job dependencies, and artifact-sharing mistakes. It can run as a Claude Code skill or as a standalone TypeScript command, producing a readable or JSON report and a nonzero exit code when critical issues are detected.

Docker Optimizer checks layer ordering, multi-stage build opportunities, base images, production dependencies, package cleanup, `.dockerignore`, working directories, and non-root execution. It can run as a Claude Code skill or a standalone TypeScript command, then reports concrete fixes and estimates how they may affect build time, image size, and cache reuse.

Claude North Star gives Claude Code or OpenCode a goal-oriented workflow instead of waiting for a new task after every step. It records the product vision, analyzes the repository, plans milestones, coordinates specialist sub-agents, and cycles through execution and evaluation. Progress, state, and architecture decisions persist in project files, with the user consulted mainly for strategic tradeoffs.

The Douglas Adamiser is a Claude Code writing skill calibrated against roughly 528,000 words from ten major Douglas Adams books. It applies measured patterns in diction, sentence length, pacing, and bathos rather than recycling quotations or familiar imitation clichés. Deterministic validation scripts help check whether a rewrite follows the documented style constraints.

Astro Docs Skill gives Claude Code project scaffolding and implementation patterns for Astro v5, covering pages, layouts, components, islands, content collections, and Starlight documentation sites. It activates around Astro files or requests and can consult live Astro documentation for edge cases, so it suits both new site creation and ongoing Astro project work.

DeepArchi frames AI agents as organizational roles and supplies a nine-agent operating model with governance and task-orchestration topology. It adds cross-model validation, a human charter, and explicit security constraints, plus ArchiMate 3.2 guidance with Draw.io integration. It is aimed at teams designing structured multi-agent organizations rather than a general-purpose agent runtime.

reddit-research-skills lets Claude Code and other agents query Reddit discussions through reddapi.dev using natural-language or semantic search, with additional trend and subreddit discovery features. It can support research into user complaints, product pain points, or competitor conversations. The service is third-party rather than an official Reddit API, and it requires a reddapi.dev API key.

Apply WordPress Coding Standards while writing or reviewing plugin and theme code in Claude Code. The skill covers Core, Extra, and VIP rules, with practical guidance for sanitization, escaping, nonce verification, Yoda conditions, documentation patterns, and automated fixes.