Recently updated open-source projects

This agent skill guides users through France’s income-tax return, including Form 2042 and common annexes. It maps salary, business, property, investment, crypto, and foreign income to specific boxes, builds a document checklist, and can estimate tax while comparing PFU with the progressive scale. It does not file the return, and its projected 2026 figures should be checked against official guidance or a tax professional.

Use this Claude skill to turn deal details into a customized Customer Agreement based on Y Combinator’s standard SaaS form. It applies predefined drafting decisions, removes template annotations, and produces both an editable DOCX and a memo explaining the changes. The result is a starting point, with issues such as data processing and IP ownership explicitly flagged for counsel review.

Prepare for the 42 School or 1337 Pool with a mentor that explains concepts, guides debugging through questions, and runs mock exams. Its five modes cover onboarding, learning, debugging, code-ownership checks, and exam practice, while refusing to write solutions for you. Using it requires Claude.ai with Custom Skills enabled.

second-opinion intercepts plans involving migrations, authentication, billing, infrastructure, production operations, or broad file changes before execution. It routes them to Codex, Gemini, or Opencode for a compact SHIP, REVISE, or RECONSIDER verdict, and falls back to a fresh-context self-review when no external reviewer CLI is available.

This Claude Code skill stores boards, linked issue specifications, and cross-session context inside a project-local `kanbanboards/` folder. The files remain readable in any editor with no build step or runtime dependency, while the optional Obsidian Kanban plugin adds an interactive drag-and-drop view.

This Claude Code skill turns product details and one of three visual directions—technology, Chinese-inspired, or warm—into concise Chinese generation prompts for Doubao and Jimeng. It produces text-free and branded logo variants, invitation key visuals, short slogans, and an iteration checklist so the same visual concept can carry into video and other launch assets.

This Claude Code skill guides Korean users through personal-finance questions covering take-home income, social insurance, spending, savings, debt, taxes, housing, pensions, insurance, and investing. Its reference material is organized around 2026 Korean rules such as tax rates, DSR limits, housing subscriptions, and retirement programs, producing structured plans from a user's situation.

This Python CLI converts IA5 or ITA2 text into 600 or 1200 bps INMARSAT-C baseband WAV audio, then reverses the process to recover the message. The codec includes convolutional FEC, block interleaving, FSK modulation, frame synchronization, and CRC checking. It is suited to protocol study and codec testing and requires Python 3.7+ with NumPy.

Commit is a lightweight macOS Git client built around a command-palette workflow. Invoke it with a keyboard shortcut, enter a commit message, and it automatically detects the repository you have been working in before creating the commit. It can also push the result when requested, keeping routine changes out of a full Git GUI. Current downloads are provided for Apple Silicon and Intel Macs. Windows and Linux are referenced only as future issue requests rather than supported releases.

LegalCheck scans a full source tree with regex and AST analysis, applying 32 rules across 14 Korean professional-licensing laws and producing reproducible JSON or Markdown findings. Claude Code or Codex can then inspect the flagged code to filter false positives. It is intended as a pre-release screening tool, not legal advice; a lawyer must assess the legality of a specific product or situation.

reddit-intel collects posts for a keyword through Reddit's public JSON interface, combines several sort orders, and deduplicates the results; deep mode also retrieves selected comments. It translates and classifies discussions by intent, sentiment, competitors, use cases, and action items, then exports post-level data and a summary sheet to Excel. Because Reddit exposes only a limited result window, the tool is better for fast directional research than complete archives or continuous monitoring.

Upload a text-based PPT or PPTX on claude.ai to generate structured study notes, exam-style questions and answers, and a compact revision sheet. The skill preserves the slide wording, avoids outside knowledge, and splits large decks across multiple responses when needed. It is designed for faithful study-material extraction, so image-only presentations cannot be processed.

WeChat Writer combines intent analysis, guided questions, generation scripts, templates, and writing references into a repeatable Chinese content workflow. It can produce WeChat Moments posts, official-account articles, and adaptations for other platforms, running as a Claude Skill in CoPaw or compatible environments with configurable user preferences.

This skill flags usage patterns that may raise Claude Code token consumption, including long conversations, fragmented requests, missing ignore rules, model switches within a session, and extended thinking on simple edits. It turns cache and prompt-management guidance into practical suggestions such as using /compact when appropriate, keeping the model stable, providing exact paths, and excluding bulky generated files with .claudeignore.

Convert manuals, datasheets, programming guides, and other structured PDFs with a digital-first extraction path and optional OCR for scanned pages. The skill reconstructs headings, recovers tables and preformatted listings, exports figures, and supports page ranges or batch folders. It writes Markdown beside the source by default, requires uv and Python, and can use pdftotext as an optional geometry source for better layout recovery.

CALM lets you define a canvas application in `canvas.lisp`, run it as a desktop window, and handle drawing, input, and audio through a thin layer over SDL2 and Cairo. When the app is ready, its commands can package it for the current desktop platform or generate files for browser deployment. It suits Lisp developers building small graphical applications, but desktop packages are produced per operating system and unsigned downloads may trigger Windows or macOS security prompts.

Provide a brand name, product idea, audience, or a few constraints, and the skill develops three distinct visual directions, selects a recommendation, and writes a strategy document plus a standalone HTML brand board. It can also generate CSS design tokens for handoff. Invented testimonials, logos, or metrics must be labeled as concept content rather than presented as real proof.

For complex architecture, review, or security tasks, the skill dispatches targeted prompts to Codex CLI and Gemini CLI at the same time and returns structured outputs for Claude to synthesize. It highlights agreement and divergence instead of treating either model as authoritative. Claude Code, both external CLIs, and Python 3.8 or newer must already be installed and authenticated.