How to Build an Always-On AI Agent in 2026: Background Tasks, Persistent Memory, Event Triggers, Secure Tools & Human Approvals
Build an event-driven AI agent that survives restarts, remembers useful context and uses secure tools, with approval-bound actions, recovery rules and practical Node.js examples.
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Build a Semantic Cache That Cuts an AI Agent's LLM Bill by 53%
Learn how to build a semantic cache for AI agents using ChromaDB, Gemini, and local embeddings to reduce LLM costs, improve response times, and safely reuse answers.
PHP2Shell, Node.js and LiteLLM: October 2026 Security Patch Guide
A practical October 2026 security briefing: PHP2Shell patches, Node.js Brotli/TLS fixes, the malicious LiteLLM release, eMudhra certificate risks, and safe versions across Python, Go and Java.
Multi-Tenant SaaS Isolation Architecture: PostgreSQL RLS, Caches, Queues, Storage, and AI
A practical production guide to tenant isolation across PostgreSQL RLS, Redis caches, background jobs, queues, object storage, search, RAG, analytics, and AI tools without overengineering your SaaS.
How to Build a Multi-Tenant AI Agent Platform in 2026: Identity, Tool Permissions, Guardrails, Tracing, Evals, Billing & Audit Logs
A production blueprint for building secure multi-tenant AI agent platforms with tenant isolation, delegated identity, tool authorization, approvals, tracing, evals, usage billing, and immutable audit logs.
Everything OpenAI Announced at DevDay 2026: Dots, GPT-6.1 Sol, Codex Cloud, Agents API, Plugins, Spaces & More
OpenAI DevDay 2026 brought 20+ launches across Dots, GPT-6.1 Sol, Ultrafast, Codex Cloud, Agents API, plugins, MCP Events, ChatGPT Spaces, Pages, team automation, and more. Here is what actually changed and what it means for developers.
SaaS Audit Log Architecture: Immutable Events, Multi-Tenant Isolation, Retention, and SIEM Streaming
A production guide to SaaS audit logs: design tenant-safe append-only events, reliable transaction capture, retention, exports, AI-agent attribution, and replayable SIEM streaming.
SaaS Entitlements Architecture: Plans, Features, Quotas, Trials, Add-Ons, and Why Billing Isn’t Authorization
A production guide to SaaS entitlements: separate billing from feature access and authorization, model plans, quotas, seats, trials, add-ons, overrides and grandfathering, and enforce capabilities safely across a multi-tenant product.
Usage-Based Billing for AI SaaS: Tokens, Credits, Quotas, Metering, and Cost Control
A production guide to AI SaaS usage-based billing: separate provider cost from customer pricing, meter tokens and tools correctly, build auditable credit ledgers, enforce quotas and reservations, handle retries, and reconcile invoices.
PostgreSQL 19: New Features, Production Impact, and Upgrade Readiness
PostgreSQL 19 brings REPACK CONCURRENTLY, WAIT FOR LSN, parallel autovacuum, sequence replication, partition merge/split, SQL/PGQ graph queries, and temporal DML. Here is what actually matters for production teams and how to prepare for the upgrade while PostgreSQL 19 is still in beta.
How Much Does It Cost to Build a SaaS Product in 2026? MVP to Enterprise — Real Cost Breakdown
How much does it really cost to build a SaaS product in 2026? This practical guide breaks down realistic MVP, commercial V1, growth, and enterprise budgets—plus multi-tenancy, billing, AI, infrastructure, security, and the architecture decisions that actually change cost.
Stop Killing PostgreSQL with Analytics: A PostgreSQL + ClickHouse Architecture
PostgreSQL is a great transactional database, but heavy dashboards and analytical scans can eventually compete with production traffic. This guide explains when PostgreSQL is still enough, when ClickHouse helps, how CDC connects the two, and how to migrate without unnecessary complexity.
The Future of SaaS Is Headless: When AI Agents Become Your Users
AI agents are becoming first-class SaaS users. Learn the architecture, security, billing, and product patterns required to build agent-ready software.