# Tools

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Type Skill, Resources for QA or ML / AI or Founders: 205 items.

> - QA: Functional testing, test automation and quality assurance.
> - ML / AI: Model training, evaluation and LLM application development.
> - Founders: Business plans, fundraising decks, business analysis and team management.

- [Skill Creator](https://hebbmind.com/ja/skill/skill-creator.md): [Skill] Guides the agent through writing or improving a skill: clarify intent, draft SKILL.md, run scored evals with and without the skill, then tune the description so it triggers accurately. Official Anthropic skill.
- [Browser Use](https://hebbmind.com/ja/skill/browser-use.md): [Skill] Controls your local Chrome over CDP to navigate, click, type, take screenshots and scrape data, reusing logged-in sessions. Official browser-use skill; install the browser-use CLI with uv first.
- [Scientific Agent Skills](https://hebbmind.com/ja/skill/scientific-agent-skills.md): [Skill] 166 research skills maintained by K-Dense (formerly Claude Scientific Skills), spanning bioinformatics, cheminformatics, clinical research, materials and physics, including unified access to 78 public databases such as PubChem and UniProt. Works with Claude Code, Codex and Cursor.
- [Trail of Bits Skills](https://hebbmind.com/ja/skill/trailofbits-skills.md): [Skill] Skills from security firm Trail of Bits: 40+ plugins for code auditing, CodeQL and Semgrep static analysis, differential review, smart-contract and cryptography audits, fuzzing and more. Also installable as a Claude Code or Codex plugin marketplace.
- [Test-Driven Development](https://hebbmind.com/ja/skill/test-driven-development.md): [Skill] Forces red-green-refactor: write a test and watch it fail, then write the minimum code to pass. Any code written without a verified failing test gets deleted and redone. From the Superpowers workflow.
- [Diagnosing Bugs](https://hebbmind.com/ja/skill/diagnosing-bugs.md): [Skill] A disciplined process for hard bugs and performance regressions: build a reliable reproduction loop, reproduce and minimize, form hypotheses, instrument to verify, then fix and add a regression test, redacting secrets in output. By Matt Pocock.
- [Grill Me](https://hebbmind.com/ja/skill/grill-me.md): [Skill] Before you build, the agent grills you on your plan or design, offering a recommended answer each round, until every decision branch is resolved. It calls the grilling skill from the same repo, so install both.
- [Customer Billing Ops](https://hebbmind.com/ja/skill/customer-billing-ops.md): [Skill] Resolves subscription billing issues: checks customer and subscription state, separates duplicate purchases, team seats and failed payments, restores self-serve before refunding, and drafts the reply. Needs Stripe or similar tools connected; refunds move real money, so review them.
- [MCP Builder](https://hebbmind.com/ja/skill/mcp-builder.md): [Skill] Guides agents in building quality MCP servers: research the protocol and target API, design tools, implement with Python (FastMCP) or the TypeScript SDK, and write evaluation questions to test the result. Official Anthropic skill.
- [webapp-testing](https://hebbmind.com/ja/skill/webapp-testing.md): [Skill] Drives local web apps with Python Playwright scripts to verify features, debug the UI, take screenshots and read browser logs. Includes helper scripts to start and stop dev servers. Official Anthropic skill.
- [Claude API](https://hebbmind.com/ja/skill/claude-api.md): [Skill] Reference for the Claude API and Anthropic SDK: model selection and pricing, streaming, tool use, prompt caching, Managed Agents and more, plus workflows for model migration and prompt audits. Official Anthropic skill.
- [PPTX](https://hebbmind.com/ja/skill/pptx.md): [Skill] Creates, reads and edits PowerPoint decks: applies templates and layouts, handles speaker notes and comments, and merges or splits slides. The official Anthropic skill behind Claude's document features; source-available, not open source.
- [Discernment Nudge](https://hebbmind.com/ja/skill/discernment-nudge.md): [Skill] After giving advice, a draft or a data analysis, adds 2-3 targeted follow-up questions that prompt the user to check key facts, test the reasoning and fill in missing context. Fires at most once per conversation. Official Anthropic skill.
- [Internal Comms](https://hebbmind.com/ja/skill/internal-comms.md): [Skill] Writes internal communications in familiar company formats: 3P updates, leadership reports, project status updates, company newsletters, FAQs and incident reports. Official Anthropic skill.
- [gstack](https://hebbmind.com/ja/skill/gstack.md): [Skill] Skill pack from YC president Garry Tan: slash commands such as /office-hours, /plan-ceo-review, /review, /qa and /ship play CEO, engineering manager, designer, QA and release engineer. Needs Git and Bun; clone the repo and run ./setup as the README describes.
- [office-hours (gstack)](https://hebbmind.com/ja/skill/office-hours.md): [Skill] YC office hours skill from gstack: startup mode tests real demand, the narrowest wedge and future fit with six probing questions; builder mode brainstorms side projects, hackathons and open source. Ends with a design doc. Maintained by Garry Tan.
- [Agent Skills (Addy Osmani)](https://hebbmind.com/ja/skill/addyosmani-agent-skills.md): [Skill] Engineering skill collection spanning define, plan, build, verify, review and ship, with /spec, /plan, /build, /test, /review and /ship commands, including TDD, code review and web performance audits. By Addy Osmani.
- [Interview Me](https://hebbmind.com/ja/skill/interview-me.md): [Skill] For fuzzy requirements: the agent asks one question at a time with its own guess, clarifying users, motivation, success criteria and constraints, and restates the intent for your confirmation before planning. Needs you answering live, so not for unattended runs. From Addy Osmani's agent-skills.
- [Invoice Organizer](https://hebbmind.com/ja/skill/invoice-organizer.md): [Skill] Reads messy invoices and receipts (PDFs, scans, screenshots), extracts vendor, date and amount, renames and files them by vendor, category or year, keeps originals and can export a CSV for your accountant. Needs an agent with local file access; no account required.
- [PPT Master](https://hebbmind.com/ja/skill/ppt-master.md): [Skill] Generates natively editable PPTX from PDFs, Word files, web pages and other sources, with native shapes, data charts and master layouts. Can also fill your own template and add animations and narration to finished decks. Needs Python 3.10+ and its dependencies.
- [last30days](https://hebbmind.com/ja/skill/last30days-skill.md): [Skill] Searches Reddit, X, YouTube, Hacker News, Polymarket and more in parallel for the past 30 days of discussion on a topic, scores it by engagement and summarizes it into a brief. Good for market research and meeting prep. Needs Python 3.12+; some sources need API keys.
- [Customer Research](https://hebbmind.com/ja/skill/coreyhaines31-customer-research.md): [Skill] Runs and analyzes customer research: pulls pain points, buying motives and verbatim quotes from interviews, surveys, support tickets, review sites and community posts, builds personas and JTBD, and designs interview guides and PMF surveys. From the marketingskills collection.
- [Marketing Skills](https://hebbmind.com/ja/skill/marketingskills.md): [Skill] Marketing skill collection: 50 skills covering SEO audits, conversion optimization, landing page copy, pricing, paid ads, email and social media, all sharing a common product marketing context. Supports Claude Code, Codex and more.
- [Competitor Profiling](https://hebbmind.com/ja/skill/competitor-profiling.md): [Skill] Give it competitor URLs and it scrapes homepages, pricing, feature pages and third-party reviews, adds SEO and traffic data, and writes standardized profiles of positioning, features, pricing, customers and differentiators. Needs Firecrawl and DataForSEO MCPs with API keys.
- [churn-prevention](https://hebbmind.com/ja/skill/churn-prevention.md): [Skill] Helps subscription products reduce churn: designs cancellation flows, save offers and exit surveys, spots churn risk signals, and plans dunning and win-back emails after failed payments. For customer success, lifecycle and growth teams; billing platforms like Stripe need setup on your side.
- [Paid Ads](https://hebbmind.com/ja/skill/ads.md): [Skill] Paid ads advisor: plans campaigns on Google Ads, Meta, LinkedIn, X and more, covering audience targeting, bidding and budgets, account diagnostics and ROAS/CPA optimization. From the marketingskills collection; needs no API key itself.
- [Cold Email](https://hebbmind.com/ja/skill/cold-email.md): [Skill] Writes B2B cold emails and multi-step follow-up sequences, refining subject lines, openers, body and calls to action so they feel personal and human. Suited to SDRs and founders doing outbound. From the marketingskills collection; no extra account needed.
- [BMad Method](https://hebbmind.com/ja/skill/bmad-method.md): [Skill] Agile AI-driven development method: analyst, product manager, UX designer and other role skills turn ideas into product briefs, PRDs and PRFAQs, then split them into tasks for agents. Needs a skills-capable agent such as Claude Code, plus Node.js, Git and uv; then run bmad setup.
- [Chrome DevTools](https://hebbmind.com/ja/skill/chrome-devtools.md): [Skill] Teaches agents to use the Chrome DevTools MCP efficiently: snapshot first to get element uids, screenshot only when needed, paginate and filter large output, inspect CSS and test browser extensions. Needs chrome-devtools-mcp configured; maintained by the Chrome DevTools team.
- [Open Code Review](https://hebbmind.com/ja/skill/open-code-review.md): [Skill] Drives Alibaba's open-source ocr CLI to review Git changes (working tree, a commit or a branch diff), grouping line-level comments by severity and fixing them on request. Needs an LLM endpoint (Anthropic, OpenAI and other protocols); installs the CLI if missing. By Alibaba.
- [agent-browser](https://hebbmind.com/ja/skill/agent-browser.md): [Skill] Companion skill for the agent-browser CLI: has the agent load usage matching the installed version to navigate, fill forms, take screenshots and run exploratory tests, and can also drive Electron desktop apps. Install the agent-browser CLI first; from Vercel Labs.
- [team-composition-analysis](https://hebbmind.com/ja/skill/team-composition-analysis.md): [Skill] Plans teams for seed to Series A startups: which roles to hire at each stage and in what order, org structure, plus salary, equity ranges and headcount budget. Compensation benchmarks are 2024 US market data; adjust for your market and have finance and legal review the plan.
- [Employment Contract Templates](https://hebbmind.com/ja/skill/employment-contract-templates.md): [Skill] Templates and drafting guidance for offer letters, employment agreements and handbook policies, helping HR and legal produce consistent employment documents. Written for US employment rules; adapt them for other jurisdictions and have a lawyer review final drafts. No account or API key.
- [Claude for Financial Services](https://hebbmind.com/ja/skill/financial-services.md): [Skill] Anthropic's official financial services skills for investment banking, equity research, private equity, fund admin and wealth management: comps, DCF, LBO, three-statement models, CIMs, earnings reviews, IC memos, GL reconciliation and more. Outputs need expert review.
- [prd](https://hebbmind.com/ja/skill/prd.md): [Skill] Writes product requirement docs for software and AI features: first asks about the problem, success metrics and constraints, then outputs an executive summary, user stories, technical specs and risk analysis with measurable requirements. From GitHub's awesome-copilot community library.
- [Breakdown Epic PM](https://hebbmind.com/ja/skill/breakdown-epic-pm.md): [Skill] Turns a new epic idea into a PRD: problem and goals, personas, user journeys, functional and non-functional requirements, success metrics and out-of-scope items, asking questions when information is missing, saved as Markdown. From GitHub's awesome-copilot collection.
- [Find Skills](https://hebbmind.com/ja/skill/find-skills.md): [Skill] When a user asks whether a skill exists for some task, searches the skills.sh ecosystem with the skills CLI, then recommends and installs a fit. Maintained by Vercel Labs and shipped in the skills CLI repo.
- [Nuwa Skill](https://hebbmind.com/ja/skill/nuwa-skill.md): [Skill] Give it a person's name or a vague need and it researches and distills their mental models, decision style and voice into a callable persona skill (e.g. Munger, Feynman, Jobs) to aid analysis and decisions. Works with Claude Code, Codex and other agents.
- [Month End Prep](https://hebbmind.com/ja/skill/month-end-prep.md): [Skill] Month-end reconciliation for small businesses: matches QuickBooks or Xero line by line against PayPal, Stripe and Shopify payouts, flags likely duplicates and missing receipts, explains the P&L in plain terms and exports a close package (Excel and PDF). CSVs work too. Official from Anthropic.
- [draft-offer](https://hebbmind.com/ja/skill/draft-offer.md): [Skill] Drafts offer letters from role, level, location and comp package, listing base salary, equity, signing bonus and first-year total, plus talking points for the hiring manager's negotiation. The template follows US company conventions; have legal review before sending. Official from Anthropic.
- [financial-statements](https://hebbmind.com/ja/skill/financial-statements.md): [Skill] Produces monthly, quarterly or annual income statements with prior-period, year-over-year and budget comparisons, flagging material variances. Includes balance sheet and cash flow formats plus GAAP presentation and period-end adjustment references. From Anthropic's finance plugin; get it reviewed.
- [recruiting-pipeline](https://hebbmind.com/ja/skill/recruiting-pipeline.md): [Skill] Tracks the hiring funnel through sourcing, screening, interviews, debrief and offer, watching stage time and conversion, source effectiveness, offer acceptance and time to hire. With an ATS connected it pulls candidate data and updates status. A brief skill from Anthropic's human-resources plugin.
- [Payroll Prep](https://hebbmind.com/ja/skill/payroll-prep.md): [Skill] Checks hours before payroll for US small businesses: totals regular time, overtime and PTO from Gusto, QuickBooks Payroll or timesheets, and flags missed punches, overtime anomalies, rate changes and mid-period hires or exits. Prepares only, never runs payroll. Official from Anthropic.
- [Ticket Deflector](https://hebbmind.com/ja/skill/ticket-deflector.md): [Skill] Support for small merchants: reads customer emails, checks orders and refunds in Stripe, PayPal, Square or Shopify, and drafts replies in the owner's voice per your refund policy; can refund via Stripe or Square after explicit approval. Works with pasted emails too. Official from Anthropic.
- [comp-analysis](https://hebbmind.com/ja/skill/comp-analysis.md): [Skill] Compensation analysis for HR and managers: market pay percentiles by role, level and location, offer competitiveness checks and equity modeling; upload a pay sheet to find employees outside their band and flight risks. Without a comp data source it uses public web data, so verify. By Anthropic.
- [hiring-screener](https://hebbmind.com/ja/skill/hiring-screener.md): [Skill] Screens resumes against a role rubric into a cited shortlist, ignoring irrelevant details like name and age; drafts invite, hold or decline replies, schedules interviews and builds onboarding checklists. Gmail and Calendar are optional, sending only after you confirm. Official from Anthropic.
- [triage-nda](https://hebbmind.com/ja/skill/triage-nda.md): [Skill] Quickly pre-screens incoming NDAs and sorts them green, yellow or red into standard approval, legal review or full review, focusing on non-competes, non-solicitation and missing carve-outs. Part of Anthropic's official legal plugin.
- [performance-review](https://hebbmind.com/ja/skill/performance-review.md): [Skill] Performance review season helper: generates self-review and manager review templates and calibration materials, summarizes rating distributions and promotion cases, and rewrites vague feedback into specific behavioral examples. Works in plain chat. Official from Anthropic.
- [onboarding](https://hebbmind.com/ja/skill/onboarding.md): [Skill] Builds onboarding plans for new hires: a pre-start checklist (accounts, equipment, buddy), day-one and first-week schedules, and 30/60/90-day goals. Works in plain chat; with an HRIS, knowledge base or calendar connected it pulls in team info and books day-one events. Official from Anthropic.
- [stakeholder-update](https://hebbmind.com/ja/skill/stakeholder-update.md): [Skill] Writes stakeholder updates by audience and cadence: weekly or monthly reports, launch announcements or risk escalations, and can rewrite the same progress as an executive summary, an engineering deep dive or a customer-facing version. From Anthropic's official product-management plugin.

Next page: https://hebbmind.com/ja/tools.md?page=2&type=skill&profession=qa%2Calgorithm%2Cfounder