Kishore Kanthan | WritingArticles and notes on data platforms, cost and AI agents.https://kishorekanthan.com/How to set up AI governance for any repohttps://kishorekanthan.com/writing/ai-governance/https://kishorekanthan.com/writing/ai-governance/A template that tells AI coding agents the rules, then checks them at each commit, pull request and tag. It works for React, TypeScript and Python repos.Fri, 23 Oct 2026 00:00:00 GMTaisecuritytoolingOne local setup for every coding agenthttps://kishorekanthan.com/writing/local-agent-setup/https://kishorekanthan.com/writing/local-agent-setup/One rules file, a repo file and global git hooks. Claude Code and Codex get the same rules and checks.Fri, 23 Oct 2026 00:00:00 GMTaitoolingsecurityHow to define metrics in config, not codehttps://kishorekanthan.com/writing/config-driven-metrics/https://kishorekanthan.com/writing/config-driven-metrics/Why a business metric should be a short definition anyone can read, and what it takes to get there.Wed, 21 Oct 2026 00:00:00 GMTdatabitestingHow to cut LLM cost with prompt cachinghttps://kishorekanthan.com/writing/prompt-caching/https://kishorekanthan.com/writing/prompt-caching/How a stable prompt prefix turns repeat agent calls into cache hits, what breaks the cache, and how to measure it.Thu, 15 Oct 2026 00:00:00 GMTaicostHow to cut compute and storage use on a data platformhttps://kishorekanthan.com/writing/cloud-cost-optimisation/https://kishorekanthan.com/writing/cloud-cost-optimisation/Where the money went on a busy data platform, and the fixes that brought compute and storage usage down.Wed, 14 Oct 2026 00:00:00 GMTdatacostHow to allocate AWS cost for data platformshttps://kishorekanthan.com/writing/cost-without-join-key/https://kishorekanthan.com/writing/cost-without-join-key/Splitting a shared cloud bill across teams when the billing data and the usage data share no key. Then turning usage into an estimate.Thu, 08 Oct 2026 00:00:00 GMTdatacostHow to run a security review of a data platformhttps://kishorekanthan.com/writing/security-review/https://kishorekanthan.com/writing/security-review/A plain guide to reviewing a data platform with a security team: what to cover, what evidence to bring, and how to close what you find.Wed, 07 Oct 2026 00:00:00 GMTdatasecurityWhy we gate agent work on evidencehttps://kishorekanthan.com/writing/gate-on-evidence/https://kishorekanthan.com/writing/gate-on-evidence/Passing unit tests prove little. Verify the whole feature, the way a user meets it, with the check that fits the use case.Thu, 01 Oct 2026 00:00:00 GMTaitesting