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xlsx
Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When Claude needs to work with spreadsheets (.xlsx, .xlsm, .csv, .tsv, etc) for: (1) Creating new spreadsheets with formulas and formatting, (2) Reading or analyzing data, (3) Modify existing spreadsheets while preserving formulas, (4) Data analysis and visualization in spreadsheets, or (5) Recalculating formulas
e-tax
This skill should be used when the user wants to file their tax return electronically via the 確定申告書等作成コーナー (NTA Tax Return Preparation Corner) using Claude in Chrome, Antigravity Browser Sub-Agent, or Playwright CLI (fallback). It guides the browser-based input of calculated tax data. Trigger phrases include: "e-Tax提出", "電子申告", "e-Taxで申告", "作成コーナーに入力", "確定申告書等作成コーナー", "作成コーナー", "申告書を提出".
journal
This skill should be used when the user wants to record bookkeeping entries (仕訳), import transaction data from CSV files, receipts, or invoices, or manage their general ledger. Trigger phrases include: "仕訳を入力", "仕訳登録", "CSVを取り込む", "レシートを読み込む", "請求書を取り込む", "帳簿を付ける", "経費を記録", "売上を記録", "仕訳を修正", "仕訳を検索", "仕訳を削除", "取引を登録", "帳簿の初期化".
document-illustrator
基于文档内容自动生成配图。AI 智能分析文档结构，归纳核心要点， 为每个主题生成符合特定风格的配图。支持封面图生成和自定义图片比例。 使用场景：当用户需要为文档、文章、笔记生成配图时。 关键词：配图、插图、illustration、generate images、document images
data-analyzer
数据分析工具，使用 pandas 进行数据统计分析。当用户需要对数据进行统计分析、计算均值、求和、描述性统计时使用。
policyengine-data-testing-skill
Imported from https://github.com/PolicyEngine/policyengine-claude.
julia-scientific
Julia package equivalents for 137 K-Dense-AI scientific skills. Maps Python bioinformatics, chemistry, ML, quantum, and data science packages to native Julia ecosystem.
multi-ai-consultant
Imported from https://github.com/jackspace/ClaudeSkillz.
compositional-acset-comparison
Compositional algorithm and data analysis via algebraic databases
scientific-thinking-scholar-evaluation
Imported from https://github.com/jackspace/ClaudeSkillz.
bisimulation-game
Bisimulation game for resilient skill dispersal across AI agents with GF(3) conservation and observational bridge types.
csv-data-summarizer-claude-skill_coffeefuelbump
Imported from https://github.com/jackspace/ClaudeSkillz.
build
Build features with AI coding tools (Claude Code, Lovable, Replit, Cursor). Use when implementing specs, iterating on AI code, or choosing tools. Focuses on tool selection, effective prompting, and iteration workflows for non-technical founders.
evaluating-candidates
Make an evidence-based hiring decision and produce a Candidate Evaluation Decision Pack (criteria + scorecard, signal log, work sample/trial plan + rubric, reference check script + summary, decision memo). Use for candidate evaluation, hiring decisions, reference checks, work samples/take-homes, and hiring bar calibration. Category: Hiring & Teams.
clawtributor
Community incident reporting for AI agents. Contribute to collective security by reporting threats.
website
Imported from https://github.com/benchflow-ai/SkillsBench.
examples
Imported from https://github.com/zhukunpenglinyutong/ai-max.
threejs
Imported from https://github.com/benchflow-ai/SkillsBench.
python-async
Imported from https://github.com/benchflow-ai/SkillsBench.
training-data-curation
Guidelines for creating high-quality datasets for LLM post-training (SFT/DPO/RLHF). Use when preparing data for fine-tuning, evaluating data quality, or designing data collection strategies.
evaluating-llms
Evaluate LLM systems using automated metrics, LLM-as-judge, and benchmarks. Use when testing prompt quality, validating RAG pipelines, measuring safety (hallucinations, bias), or comparing models for production deployment.
managing-secrets
Managing secrets (API keys, database credentials, certificates) with Vault, cloud providers, and Kubernetes. Use when storing sensitive data, rotating credentials, syncing secrets to Kubernetes, implementing dynamic secrets, or scanning code for leaked secrets.
jira-communication
Jira API operations via Python CLI scripts. AUTOMATICALLY TRIGGER when user mentions Jira URLs (https://jira.*/browse/*, https://*.atlassian.net/browse/*), issue keys (PROJ-123), or asks about Jira issues. Use when Claude needs to: (1) Search issues with JQL queries, (2) Get or update issue details, (3) Create new issues, (4) Transition issue status (e.g., "To Do" → "Done"), (5) Add comments, (6) Log work time (worklogs), (7) List sprints and sprint issues, (8) List boards and board issues, (9) Create or list issue links, (10) Discover available Jira fields, (11) Get user profile information, (12) Download attachments from issues. If authentication fails, offer interactive credential setup via jira-setup.py. Supports both Jira Cloud and Server/Data Center with automatic auth detection.
templates
This skill provides domain-specific validation templates for six task types, enabling automated quality assessment of outputs by defining critical, important, and optional criteria for consistent, structured evaluation.