sergeyizmailov/knowledge-delta-skills
Skill Claude CodeCodex
Use when asked to research deeply, compare options or vendors, fact-check a claim, investigate an unfamiliar topic, prepare a report or briefing, build a knowledge base or reference doc, or trace a claim to its primary source.
sergeyizmailov/knowledge-delta-skills
Skill Claude CodeCodex
Use when building or restyling frontend UI and choosing building blocks — icon sets, fonts, component/block libraries, accessible primitives, imagery sources, color systems, motion, shadows, spacing, and image optimization. For landing pages, ecommerce, dashboards, web apps, emails, and single components.
sergeyizmailov/knowledge-delta-skills
Skill Claude CodeCodex
Senior Google Ads, single-account layer: plan, launch, audit, diagnose, scale one account. Search, PMax, Demand Gen, Shopping, AI Max, Smart Bidding, RSA, tCPA/tROAS, tracking/OCI, API mass-launch. Clean-marketing layer — grey infra/survival is google-grey-ops, feeds/Merchant Center is google-feed-ops…
sergeyizmailov/knowledge-delta-skills
Skill Claude CodeCodex
Merchant Center, product feeds, and Shopping eligibility: feed spec and attributes, Merchant API, feed rules and supplemental feeds, title optimization, customlabel schema, GTIN, Merchant Center suspensions, free listings, CSS. The retail data layer. Campaign types and PMax bidding live in google-ads.
sergeyizmailov/knowledge-delta-skills
Skill Claude CodeCodex
Google Ads grey-market buying: agency/MCC account supply, identity/payment infra, AdsBot/cloaking/review-layer filters, RSA/unicode/path tricks, selfie/BOV verification, geo isolation, Demand Gen/App no-cloak surfaces, ban replacement, domains/redirects/trackers, enforcement tracks, failure forensics, per-vertical…
sergeyizmailov/knowledge-delta-skills
Skill Claude CodeCodex
Use when obfuscating JavaScript, building anti-detection layers, evading Google Safe Browsing, hiding payloads from scanners, adding anti-bot/anti-DevTools protection, or preparing phishing/red-team pages for deployment.
sergeyizmailov/knowledge-delta-skills
Skill Claude CodeCodex
Writes, audits, and compresses agent skills so they earn their tokens. Covers include-vs-cut, real expertise vs what the model already knows, sizing and progressive disclosure, description/trigger design, multi-file skills. For: write a skill for X, improve/shrink this skill, is this skill worth its tokens, my skill…
sergeyizmailov/knowledge-delta-skills
Skill Claude CodeCodex
Decide whether a media-buying result is real before scaling it: testing-mode choice (causal / screening / infrastructure), validity traps (SRM, peeking, contamination, lag, multiple testing), and the platforms' measurement tools — Meta (A/B Test, adstudy API, Conversion Lift, GeoLift, Robyn) and Google (Experiments…
sergeyizmailov/knowledge-delta-skills
Skill Claude CodeCodex
Senior Meta (FB/IG) ads: plan, launch, audit, diagnose, optimize. Clean-marketing layer — grey infra/survival is meta-grey-ops, trackers/metrics are tracker-ops.
sergeyizmailov/knowledge-delta-skills
Skill Claude CodeCodex
Meta (FB/IG) grey-market buying: antidetect/proxy/session survival, agency accounts, token death, API mass-launch, cloaking/review-layer filters, DLO/catalog/CTM/unicode tricks, verification gates (business/beneficial-owner/identity, category authorization), which verticals have no path at all, location fees, WABA…
sergeyizmailov/knowledge-delta-skills
Skill Claude CodeCodex
Use when building or restyling a website that should look like ordinary, long-running commercial web rather than a freshly art-directed product — B2B and professional services, online shops and catalogues, news and publishing, corporate and institutional sites, directories and portals. Covers the plain 2012–2020…
sergeyizmailov/knowledge-delta-skills
Skill Claude CodeCodex
Make an existing landing page, admin panel, dashboard, or any non-responsive page work at every viewport from 320px to 2560px+ without changing the visual design. Triggers on requests to make a page responsive, fix mobile layout or breakpoints, adapt a landing or admin to phones / tablets / widescreens, and on…
sergeyizmailov/knowledge-delta-skills
Skill Claude CodeCodex
Use when writing JavaScript, Node.js, HTML, CSS code for websites, landing pages, admin panels, APIs. Reduces common vulnerability classes (XSS, injection, SSRF, etc.) via secure libraries, proper headers, and safe patterns. Includes AI code vulnerability patterns.
sergeyizmailov/knowledge-delta-skills
Skill Claude CodeCodex
Senior media-buyer / team-lead operating layer (clean and grey portfolios alike): day-1 operating contract, portfolio allocation across accounts (test/scale/reserve), kill/watch/scale + marginal scaling, creative-intelligence pipeline, end-to-end funnel QA, cross-platform (Meta + Google) allocation. Orchestrates…
sergeyizmailov/knowledge-delta-skills
Skill Claude CodeCodex
Tracker ops for affiliate/media buying: Keitaro + Binom APIs (keys, reports, cost push), postback/S2S, metric discipline (payout event vs all-conversions, timezones, CPL math), daily spend-sync, gclid/OCI chain for Google. Principles port to other trackers.
sergeyizmailov/knowledge-delta-skills
Skill Claude CodeCodex
Mass crawl/scrape sites incl. anti-bot (Cloudflare, Akamai, DataDome, PerimeterX). Crawl4AI = scale (arunmany, dispatchers, deep crawl, LLM-ready markdown); Camoufox = fingerprint evasion. For: scrape N pages, crawl a site, extract structured data, 403/challenge/bot-detection, captcha.