Prittam Ravi — WritingSoftware engineer in Singapore focused on data pipelines, developer tools, and production systems.https://prittamravi.dev/en-usHarness Engineering Part 1: Stop Blaming the Modelhttps://prittamravi.dev/writing/harness-engineering/https://prittamravi.dev/writing/harness-engineering/A practical guide to improving AI coding systems by fixing the instructions, tools, environment, state, and feedback loops around the model.Fri, 29 May 2026 00:00:00 GMTai-toolingagentsharnessesllmKafka Queues and Share Groupshttps://prittamravi.dev/writing/kafka-queues/https://prittamravi.dev/writing/kafka-queues/Notes from Jun Rao on Queues for Kafka: share groups, share partitions, per-record delivery state, and how Kafka evolves without abandoning the log.Tue, 19 May 2026 00:00:00 GMTsystemskafkadistributed-systemsEffective Context Engineering for AI Agentshttps://prittamravi.dev/writing/context-engineering/https://prittamravi.dev/writing/context-engineering/Context engineering is the natural progression of prompt engineering — not about writing better prompts, but about curating exactly which information enters the limited context window.Sun, 17 May 2026 00:00:00 GMTai-toolingagentscontextllmLeWorldModelhttps://prittamravi.dev/writing/leworldmodel/https://prittamravi.dev/writing/leworldmodel/Notes on LeWorldModel, JEPA-style world models, latent planning, physical understanding, and why world models matter for AI agents.Thu, 14 May 2026 00:00:00 GMTpapersworld-modelsai-toolingDeep Dive into Kafka Designhttps://prittamravi.dev/writing/kafka/https://prittamravi.dev/writing/kafka/Notes on Kafka's original design: logs, partitions, consumer groups, ZooKeeper coordination, and throughput-oriented tradeoffs.Wed, 13 May 2026 00:00:00 GMTsystemskafkadistributed-systemsMeta Harnesshttps://prittamravi.dev/writing/meta-harness/https://prittamravi.dev/writing/meta-harness/Notes on harnesses and evaluation loops for making model-assisted systems easier to inspect.Tue, 12 May 2026 00:00:00 GMTpapersevaluationai-toolingToolFormerhttps://prittamravi.dev/writing/toolformer/https://prittamravi.dev/writing/toolformer/Notes on how ToolFormer taught language models when and how to call external tools from self-supervised data.Mon, 11 May 2026 00:00:00 GMTpaperstool-useai-toolingSemLockhttps://prittamravi.dev/writing/semlock/https://prittamravi.dev/writing/semlock/How I approached region-level locking, leases, and commit validation for safer multi-agent Python editing.Sun, 10 May 2026 00:00:00 GMTsystemsconcurrencyagents