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System Design Tutor turns Claude Code into a course controller that can teach a planned curriculum, jump to a specific concept, review a design, or run a mock interview. The material is anchored to DDIA and the System Design Primer, with real incident studies, more than thirty runnable exercises, and SM-2 spaced repetition. Progress, exercise files, and session state persist locally so the course can resume across sessions.

how-to-harness facilitates the design of closed-loop systems in which humans steer and agents execute. Before architecture work, it checks seven hard constraints: evaluation foundations, human gates, idempotent and resumable loops, small reversible steps, tiered automation, versioned assets, and a human time budget. It then uses context capture, structured Socratic questions, and consumer-specific deliverables to turn the decisions into a plan. The skill targets self-improving agent systems, not ordinary CRUD or one-off feature work.

Equity Research Like Me runs a 22-step due-diligence workflow for listed companies and sectors, prioritizing business quality, earnings quality, management, growth, macro exposure, and valuation over trailing price performance. It supports DCF, comparable-company, SOTP, and other valuation methods, plus bull and bear theses, peer comparisons, and PDF research notes from one to 25 pages. A personal ME.md file can tune the metrics and writing style; the project is for research, not financial advice.

oracle-skills-ptbr bundles seven Portuguese Claude skills for an Oracle stack: PL/SQL, APEX, ORDS, DBA operations, performance tuning, Trivadis 4.4 review, and DevOps or CI/CD. The guides cover packages and triggers, REST services, data-dictionary work, AWR and ASH analysis, naming checks, versioned database changes, and Python oracledb deployment scripts. The documented baseline is Oracle 19c, APEX 24.2, and ORDS 24.4/25.x, so teams on other versions should verify compatibility.

ikuai-router-skill combines an Agent Skill with a standalone Python helper for the iKuai router's private `/Action/login` and `/Action/call` API. It covers 14 domains, including network, DHCP, NAT, routing, QoS, firewall, VPN, wireless, logs, and system tools, with authentication caching and automatic re-login on token expiry. The catalog was verified against iKuai 3.7.8 on an IK-M50; the API is undocumented, firmware behavior may change, and destructive operations can lock you out.

Supply Chain Forecast Diagnosis analyzes CSV or Excel data containing SKU, date, forecast quantity, and actual quantity. It validates the input, calculates operational and demand-only WMAPE, forecast variance, and planner Forecast Value Add when available, then segments items with ABC and ADI/CV² patterns. The generated workbook includes executive findings, coverage checks, charts, SKU and location detail, and prioritized actions. It does not infer safety stock, reorder points, or stockouts without inventory, lead-time, and service-level data.

oracle-26ai-helper-ptbr provides Brazilian Portuguese guidance and executable SQL templates for Oracle AI Database 26ai features, including AI Vector Search, JSON Relational Duality, and RAFT replication. Its rules emphasize version checks, bind variables, vector-memory sizing, ETag concurrency, and Trivadis naming. The documented target is the 23.26.x Enterprise Edition release; it does not apply to Oracle 19c, and RAFT coverage is exploratory rather than a deployment plan.

launchspecs turns a product brief or landing-page context into paste-ready launch kits for Product Hunt and Uneed. Each kit follows the selected platform's field limits, categories, image sizes, scheduling guidance, and operations checklist, with cross-aligned copy when both platforms are in scope. The project is unofficial and community-maintained, currently covers only those two platforms, does not submit forms automatically, and refuses vote-gaming tactics or turnkey Product Hunt comments that violate platform rules.

Seedance Forge is a reference library for drafting Seedance 2.0 video prompts, not an automatic prompt generator. It searches 2,366 authored community prompts by keyword, author, or length, returns source links, and helps extract three structural patterns from the results. The package has no third-party dependencies and works in Claude Code and Codex CLI, but its conventions are specific to Seedance and do not target Sora, Runway, Veo, Kling, or image generation.

xuyangsheng-perspective distills public talks and educational ideas associated with Yangsheng Xu into a reflection framework for questions such as career transitions and education. It is a lens for self-reflection rather than a direct-answer engine. The material is based on public sources and is not Xu's own speech; it is not intended for technical fixes, short-term financial choices, or crisis response.

The-Life-Edit turns Claude into a quieter thinking companion that draws out the user's own ideas instead of rushing to generate answers. Its think-with-you skill offers several ways into a conversation and leaves room for uncertainty, while its v6 materials are written mainly in Japanese. It is free, requires no external API, and includes no tracking.

Run Seolens against a URL to check on-page SEO, technical health, content signals, conversion elements, trust, accessibility, and related factors, with a suggested fix for each failure. It works as a Claude Code skill, CLI, JavaScript library, or CI gate and can export chat, JSON, Markdown, PDF, and PowerPoint results. The free edition focuses on individual pages rather than full-site crawling or real backlink analysis.

oss-skills bundles Claude slash commands and agent skills for open-source contribution work. Its installer places commands and skills in the Claude and agent directories, while the included tools cover creating pull requests, commenting on existing PRs, and researching or planning Linux Foundation proposals. It is a small collection rather than a general project-management system.

doc-audit compares documentation claims with package files, workspace configuration, paths, and other codebase facts to surface drift, contradictions, orphaned references, duplication, and bloat. It produces a prioritized report, walks the user through each finding, and applies only approved edits as atomic commits before optionally trimming CLAUDE.md. Report-only and resume modes make the exhaustive audit easier to review in stages.

blueprint leads Claude through an adaptive concept discussion before implementation, producing module contracts, data models, security and test notes, operations details, risks, and estimates. Draft and locked phases let a team direction-check early or require complete, schema-validated, cross-consistent documents before building. The generated files default to German, and later updates show a diff before changing only affected sections.

Connect an owned or authorized iPhone to a Mac and capture decrypted Bluetooth HCI and local Wi-Fi packet streams through libimobiledevice and rvictl. The workflow pairs tshark recipes with a decoder for PTP-IP and selected Sony private opcodes, helping reconstruct device-command timelines without jailbreaking or a hardware sniffer. It cannot break application-layer encryption, decrypt internet TLS payloads, or extract keys from apps or firmware.

exiftool-skill translates natural-language requests into ExifTool commands for image, video, and audio metadata. It covers GPS handling, capture-time correction, tag copying, date-based organization, structured JSON or CSV export, video metadata, and stripping private fields before publication. ExifTool must be installed on PATH before use.

gb-music is a Claude Code and Cowork skill for producing Game Boy audio from text instructions. It generates hUGETracker v6 .uge background music with genre, key, and tempo controls, creates FX Hammer .sav sound-effect files with up to 60 effects, and can convert MP3, M4A, or WAV input with librosa. It targets GB Studio 4.x.