Engineering insights, product thinking, and lessons from building software that matters.https://izzy.agency/en-ushttps://izzy.agency/en/blog/ai-agent-harness-framework/https://izzy.agency/en/blog/ai-agent-harness-framework/Nine layers around the model decide what an AI agent may see, do and prove. A framework to design, review and scale agents, with IZZY's own examples.Mon, 05 Oct 2026 00:00:00 GMThttps://izzy.agency/en/blog/check-attribution-before-cutting-ad-spend/https://izzy.agency/en/blog/check-attribution-before-cutting-ad-spend/Ads, attribution tool and payments disagree on sales. Reconcile them before cutting spend: what HYROS counts, what drives bidding and what we learned.Mon, 05 Oct 2026 00:00:00 GMThttps://izzy.agency/en/blog/automated-post-migration-search-console-monitoring/https://izzy.agency/en/blog/automated-post-migration-search-console-monitoring/Inside a weekly workflow that compares each post-migration snapshot with the full history before an SEO specialist approves the report.Sun, 04 Oct 2026 00:00:00 GMThttps://izzy.agency/en/blog/build-chatgpt-app-release-evidence/https://izzy.agency/en/blog/build-chatgpt-app-release-evidence/A business-side build guide for ChatGPT apps: authoritative data, controlled actions, ugly cases, release evidence and operating ownership.Sun, 04 Oct 2026 00:00:00 GMThttps://izzy.agency/en/blog/company-brain-rag-evaluation/https://izzy.agency/en/blog/company-brain-rag-evaluation/Use a practical RAG evaluation scorecard to test coverage, freshness, permissions, retrieval, recovery and business value before scaling company AI.Sun, 04 Oct 2026 00:00:00 GMThttps://izzy.agency/en/blog/ai-content-publication-framework/https://izzy.agency/en/blog/ai-content-publication-framework/Inside an AI-assisted framework that turns approved editorial material into a validated, versioned and publishable web package.Sun, 27 Sep 2026 00:00:00 GMThttps://izzy.agency/en/blog/chatgpt-app-cost-quote-normaliser/https://izzy.agency/en/blog/chatgpt-app-cost-quote-normaliser/Use a quote normaliser and cost-ownership map to compare ChatGPT app proposals without relying on invented market price bands.Sun, 27 Sep 2026 00:00:00 GMThttps://izzy.agency/en/blog/permission-aware-company-knowledge/https://izzy.agency/en/blog/permission-aware-company-knowledge/Design permission-aware enterprise search and secure RAG across Notion, Drive, Slack and GitHub without flattening confidentiality, revocation or retention.Sun, 27 Sep 2026 00:00:00 GMThttps://izzy.agency/en/blog/first-ai-project-scope-budget-proof/https://izzy.agency/en/blog/first-ai-project-scope-budget-proof/France reached 35,000 companies with AI awareness; 70 took the next step. How to choose a first AI project with a fixed scope, a known price and a pass/fail test.Mon, 21 Sep 2026 00:00:00 GMThttps://izzy.agency/en/blog/chatgpt-app-business-case/https://izzy.agency/en/blog/chatgpt-app-business-case/Test the business case for a customer-facing ChatGPT app without confusing attributed sales, incremental demand and channel substitution.Sun, 20 Sep 2026 00:00:00 GMThttps://izzy.agency/en/blog/search-to-action-ai-approval/https://izzy.agency/en/blog/search-to-action-ai-approval/Decide when company AI should answer, draft, request human approval or execute. Use an action contract to control permissions, evidence and recovery.Sun, 20 Sep 2026 00:00:00 GMThttps://izzy.agency/en/blog/startup-prescreening-complementary-ai-models/https://izzy.agency/en/blog/startup-prescreening-complementary-ai-models/How an anonymous workflow gathers public signals, structures pitch decks and prepares a bounded first-pass classification for human review.Sun, 20 Sep 2026 00:00:00 GMThttps://izzy.agency/en/blog/acquisition-funnel-automated-day-one-n8n/https://izzy.agency/en/blog/acquisition-funnel-automated-day-one-n8n/Behind an acquisition journey built with Notion and n8n to connect sign-ups, follow-ups, payment and a precise activation state.Sun, 13 Sep 2026 00:00:00 GMThttps://izzy.agency/en/blog/website-feed-or-chatgpt-app/https://izzy.agency/en/blog/website-feed-or-chatgpt-app/Choose the smallest route that lets customers find accurate information, compare current offers or complete a useful action through ChatGPT.Sun, 13 Sep 2026 00:00:00 GMThttps://izzy.agency/en/blog/behind-scenes-izzy-ai-automations-real-operations/https://izzy.agency/en/blog/behind-scenes-izzy-ai-automations-real-operations/Acquisition, analysis, publishing and Search Console: four IZZY systems used in real operations, including their controls and limits.Mon, 07 Sep 2026 00:00:00 GMThttps://izzy.agency/en/blog/client-ready-project-status/https://izzy.agency/en/blog/client-ready-project-status/Build an automated project status report from Linear, GitHub, Slack and Notion while keeping evidence, interpretation and client approval separate.Mon, 07 Sep 2026 00:00:00 GMThttps://izzy.agency/en/blog/ai-pilot-to-production-governance-checklist/https://izzy.agency/en/blog/ai-pilot-to-production-governance-checklist/Evaluate an AI workflow in real operations: value, full cost, data, security, human review, stop conditions and evidence for broader use.Sat, 05 Sep 2026 00:00:00 GMThttps://izzy.agency/en/blog/campaign-decision-debt/https://izzy.agency/en/blog/campaign-decision-debt/Find the campaign decisions your team only thinks it has made - before production, media and AI make the hidden assumptions expensive.Fri, 04 Sep 2026 00:00:00 GMThttps://izzy.agency/en/blog/post-launch-campaign-decisions/https://izzy.agency/en/blog/post-launch-campaign-decisions/Use live campaign evidence to separate defects from hypotheses and decide what to fix, hold, test, scale or stop without losing the learning.Fri, 04 Sep 2026 00:00:00 GMThttps://izzy.agency/en/blog/document-ingestion-freshness/https://izzy.agency/en/blog/document-ingestion-freshness/Design a RAG ingestion pipeline that tracks document identity, updates, permissions, deletion, replay and freshness without hiding failures.Sun, 30 Aug 2026 00:00:00 GMThttps://izzy.agency/en/blog/notion-enterprise-search-vs-custom-rag/https://izzy.agency/en/blog/notion-enterprise-search-vs-custom-rag/A practical SME decision framework for testing Notion Enterprise Search, a bounded connection and custom RAG without assuming a universal winner.Sun, 30 Aug 2026 00:00:00 GMThttps://izzy.agency/en/blog/mcp-skills-cli-ai-agent-access/https://izzy.agency/en/blog/mcp-skills-cli-ai-agent-access/Choose MCP, agent skills or CLI by what the agent can actually execute. A production database example shows where instructions end and controls begin.Fri, 28 Aug 2026 00:00:00 GMThttps://izzy.agency/en/blog/systems-of-record-drive-notion-slack-github-linear/https://izzy.agency/en/blog/systems-of-record-drive-notion-slack-github-linear/Decide what should stay, be indexed, linked, copied or excluded across Drive, Notion, Slack, GitHub and Linear - without duplicate truths.Sat, 22 Aug 2026 00:00:00 GMThttps://izzy.agency/en/blog/when-generic-design-stops-being-useful/https://izzy.agency/en/blog/when-generic-design-stops-being-useful/Generic design is useful for proving a concept. Learn when to keep the scaffold, personalise the system or give a validated product a direction of its own.Sat, 22 Aug 2026 00:00:00 GMThttps://izzy.agency/en/blog/ai-shopping-agent-catalog-readiness/https://izzy.agency/en/blog/ai-shopping-agent-catalog-readiness/For ecommerce leaders: test whether product data, feeds, AI retrieval or checkout handoff is blocking AI shopping before funding the wrong build.Thu, 20 Aug 2026 00:00:00 GMThttps://izzy.agency/en/blog/brand-identity-roi-technical-founders/https://izzy.agency/en/blog/brand-identity-roi-technical-founders/A diagnostic guide for technical founders: separate positioning and brand problems from UX, accessibility, conversion, acquisition and engineering before commissioning a redesign.Thu, 20 Aug 2026 00:00:00 GMThttps://izzy.agency/en/blog/ai-text-watermark-authorship-proof/https://izzy.agency/en/blog/ai-text-watermark-authorship-proof/What an AI text watermark means when an LLM drafts, rewrites, translates or proofreads - and why it cannot calculate human versus AI authorship.Tue, 18 Aug 2026 00:00:00 GMThttps://izzy.agency/en/blog/open-source-code-security-maintainer-checklist/https://izzy.agency/en/blog/open-source-code-security-maintainer-checklist/A practical security operating model for founders maintaining public code: threat modelling, repository controls, scanning, triage, fixes and releases.Tue, 18 Aug 2026 00:00:00 GMThttps://izzy.agency/en/blog/searchable-operating-memory-company/https://izzy.agency/en/blog/searchable-operating-memory-company/A practical architecture for searchable company knowledge across Drive, Notion, Slack, GitHub and Linear - with authority, permissions and freshness.Sun, 16 Aug 2026 00:00:00 GMThttps://izzy.agency/en/blog/why-ai-search-engines-cite-different-sources/https://izzy.agency/en/blog/why-ai-search-engines-cite-different-sources/Why do AI search engines cite different sources? Compare ChatGPT, Perplexity and Google, map each evidence gap and measure brand visibility responsibly.Thu, 13 Aug 2026 00:00:00 GMThttps://izzy.agency/en/blog/ai-shopping-assistant-ecommerce-site/https://izzy.agency/en/blog/ai-shopping-assistant-ecommerce-site/Learn when an on-site AI shopping assistant can improve product discovery, what it needs and how to test one without replacing search.Wed, 12 Aug 2026 00:00:00 GMThttps://izzy.agency/en/blog/ecommerce-website-not-converting/https://izzy.agency/en/blog/ecommerce-website-not-converting/Trace ecommerce conversion leaks from product data and discovery through checkout, fulfilment and analytics before adding more traffic or tools.Tue, 11 Aug 2026 00:00:00 GMThttps://izzy.agency/en/blog/ai-share-link-privacy/https://izzy.agency/en/blog/ai-share-link-privacy/Claude, ChatGPT or another AI assistant: learn what a shared link can expose and how to control access, publication, revocation and incidents.Mon, 10 Aug 2026 00:00:00 GMThttps://izzy.agency/en/blog/meeting-notes-to-actions-n8n/https://izzy.agency/en/blog/meeting-notes-to-actions-n8n/Turn Google Meet notes into approved, owned tasks with n8n, Notion and Linear - without duplicate tickets, invented owners or hidden workflow failures.Sun, 09 Aug 2026 00:00:00 GMThttps://izzy.agency/en/blog/google-ads-vs-meta-ads-small-business/https://izzy.agency/en/blog/google-ads-vs-meta-ads-small-business/Google Ads or Meta Ads? Check your offer, margins, landing page, measurement and follow-up before buying more traffic for your small business.Mon, 03 Aug 2026 00:00:00 GMThttps://izzy.agency/en/blog/crm-outreach-consent-automation/https://izzy.agency/en/blog/crm-outreach-consent-automation/Review CRM permissions, message purpose, suppression, vendors and email tracking before automating sales outreach across EU markets.Fri, 31 Jul 2026 00:00:00 GMThttps://izzy.agency/en/blog/prototype-to-commercial-product/https://izzy.agency/en/blog/prototype-to-commercial-product/A practical route from working prototype to paid proof, usable onboarding and a product your business can operate - without building every feature first.Fri, 31 Jul 2026 00:00:00 GMThttps://izzy.agency/en/blog/ai-prototype-conversion-readiness/https://izzy.agency/en/blog/ai-prototype-conversion-readiness/Before launching an AI-generated website or app, check whether customers can understand it, trust it, complete key actions and receive a reliable response.Thu, 30 Jul 2026 00:00:00 GMThttps://izzy.agency/en/blog/ai-built-product-codebase-handoff/https://izzy.agency/en/blog/ai-built-product-codebase-handoff/Assess whether another team can operate an AI-built product, identify bounded hardening needs and make a defensible handoff decision.Wed, 29 Jul 2026 00:00:00 GMThttps://izzy.agency/en/blog/do-you-need-an-aeo-tool/https://izzy.agency/en/blog/do-you-need-an-aeo-tool/Learn what you can measure for free, what paid AI-visibility tools add and which evidence to request before your business subscribes.Tue, 28 Jul 2026 00:00:00 GMThttps://izzy.agency/en/blog/ai-overviews-france-seo-traffic-enquiries/https://izzy.agency/en/blog/ai-overviews-france-seo-traffic-enquiries/AI Overviews is rolling out in France. Learn how to measure its impact on Google visibility, SEO traffic and qualified enquiries.Mon, 27 Jul 2026 00:00:00 GMThttps://izzy.agency/en/blog/onboarding-activation/https://izzy.agency/en/blog/onboarding-activation/Users sign up but never activate? Define activation as real value, validate events and cohorts, find the first break in the journey, then fix the smallest part.Thu, 23 Jul 2026 00:00:00 GMThttps://izzy.agency/en/blog/slow-fragile-site/https://izzy.agency/en/blog/slow-fragile-site/Separate speed, reliability and measurement before you rebuild a slow website: field vs lab evidence, the first bottleneck, releases and tested recovery.Wed, 22 Jul 2026 00:00:00 GMThttps://izzy.agency/en/blog/ai-coding-agents-production-context/https://izzy.agency/en/blog/ai-coding-agents-production-context/Learn how to give AI coding agents useful production context through snapshots, replicas and controlled retrieval - without broad production access.Tue, 21 Jul 2026 00:00:00 GMThttps://izzy.agency/en/blog/website-traffic-drop/https://izzy.agency/en/blog/website-traffic-drop/Confirm the loss, locate the break and separate measurement, visibility and demand causes before you buy more marketing to fix a traffic drop.Tue, 21 Jul 2026 00:00:00 GMThttps://izzy.agency/en/blog/ai-agent-permissions-access-control/https://izzy.agency/en/blog/ai-agent-permissions-access-control/Learn how to inventory, scope, review and revoke AI agent permissions with an access register built for real business systems.Mon, 20 Jul 2026 00:00:00 GMThttps://izzy.agency/en/blog/track-ai-traffic-ga4/https://izzy.agency/en/blog/track-ai-traffic-ga4/Track ChatGPT, Perplexity and other AI referrals in GA4 with a custom channel group - and report clearly what your analytics still cannot see.Mon, 20 Jul 2026 00:00:00 GMThttps://izzy.agency/en/blog/geo-ai-visibility-company-ownership/https://izzy.agency/en/blog/geo-ai-visibility-company-ownership/SEO, brand, product or PR: learn how to assign responsibility for AI visibility without creating another organisational silo.Sun, 19 Jul 2026 00:00:00 GMThttps://izzy.agency/en/blog/ai-visibility-citations-earned-media/https://izzy.agency/en/blog/ai-visibility-citations-earned-media/Paid placements are growing in AI search. Learn how to build and measure earned AI visibility before increasing your media budget.Sat, 18 Jul 2026 00:00:00 GMThttps://izzy.agency/en/blog/llms-txt-webmcp-website-ai-agents/https://izzy.agency/en/blog/llms-txt-webmcp-website-ai-agents/An llms.txt file does not make a website usable by an AI agent. Learn what to check and where transactional sites should invest.Thu, 16 Jul 2026 00:00:00 GMThttps://izzy.agency/en/blog/ai-agent-security-product-controls/https://izzy.agency/en/blog/ai-agent-security-product-controls/When AI agents can call tools, change data or trigger transactions, security becomes a product-design decision. Use a capability contract to control risk.Wed, 15 Jul 2026 00:00:00 GMThttps://izzy.agency/en/blog/website-migration-protect-google-visibility/https://izzy.agency/en/blog/website-migration-protect-google-visibility/Protect search visibility during a website migration with an URL inventory, redirect proof, launch controls and evidence-based incident response.Wed, 15 Jul 2026 00:00:00 GMThttps://izzy.agency/en/blog/migration-rescue/https://izzy.agency/en/blog/migration-rescue/Rescue, refactor, replatform or selective rebuild? How to decide before a website migration - using evidence, essential journeys, tests and a safe way back.Tue, 14 Jul 2026 00:00:00 GMThttps://izzy.agency/en/blog/small-team-content-workflow/https://izzy.agency/en/blog/small-team-content-workflow/A practical weekly content workflow for small teams - from buyer question and evidence to distribution, follow-up and measurable learning.Mon, 13 Jul 2026 00:00:00 GMThttps://izzy.agency/en/blog/website-visitors-no-enquiries/https://izzy.agency/en/blog/website-visitors-no-enquiries/Your website gets visitors but few calls or messages? Check the audience, offer, contact path and follow-up before spending more on advertising.Mon, 13 Jul 2026 00:00:00 GMThttps://izzy.agency/en/blog/openai-gpt-5-6-flagship-model-launch/https://izzy.agency/en/blog/openai-gpt-5-6-flagship-model-launch/OpenAI launches GPT-5.6 - a family of models that trades raw scale for precision, delivering better results at lower cost across coding, knowledge work, and reasoning.Sat, 11 Jul 2026 00:00:00 GMThttps://izzy.agency/en/blog/platform-engineering-2026/https://izzy.agency/en/blog/platform-engineering-2026/Platform engineering is the fastest-growing discipline in software. Here's why abstracting infrastructure away from developers makes your team ship 3x faster.Mon, 22 Jun 2026 00:00:00 GMThttps://izzy.agency/en/blog/true-cost-of-technical-debt/https://izzy.agency/en/blog/true-cost-of-technical-debt/Technical debt compounds like interest. Here's the decision framework we use after rescuing 15+ codebases - when to refactor, when to rewrite, and when to leave it alone.Mon, 15 Jun 2026 00:00:00 GMThttps://izzy.agency/en/blog/what-software-engagement-costs/https://izzy.agency/en/blog/what-software-engagement-costs/A transparent breakdown of what you actually get when you hire a software studio. Phases, deliverables, timelines, and why fixed quotes beat hourly billing.Mon, 08 Jun 2026 00:00:00 GMThttps://izzy.agency/en/blog/smart-contracts-in-production/https://izzy.agency/en/blog/smart-contracts-in-production/What separates a testnet deploy from a mainnet-proven protocol. Gas optimization, security audits, upgradability patterns, and lessons from real deployments.Mon, 01 Jun 2026 00:00:00 GMT