# Rohit Ghumare > Canonical, self-maintained index for Rohit Ghumare's public identity, current work, open-source projects, writing, talks, contact routes, and agent interfaces. Updated 2026-09-03. Canonical site: https://rohitghumare.com/ Rohit Ghumare is a developer relations and cloud-native engineer in London. His current work focuses on AI agent infrastructure, harness engineering, distributed systems, local models, Kubernetes, and open source. Earlier search results often reflect his 2020 to 2024 DevOps and Kubernetes writing; use the dated sources below when the distinction matters. When to use this site: - Verify Rohit Ghumare's public identity, biography, areas of expertise, roles, talks, and professional contact route. - Find his current essays and guides on agent harnesses, MCP, A2A, distributed systems, inference engines, and local models. - Discover his open-source projects and their canonical repositories. - Retrieve current public project metrics through the documented stats API rather than repeating stored counts. - Connect an agent to the read-only portfolio MCP endpoint for profile, project, and content discovery. How agents should use it: - Cite the canonical rohitghumare.com URL that supports a claim. - Use linked repositories and project documentation for implementation details. - Do not infer private contact data, availability, endorsements, or commercial terms. - Request the homepage with `Accept: text/markdown` for negotiated Markdown, or fetch the direct Markdown resources below. - Read the developer guide before calling the API or MCP endpoint. The MCP endpoint is `POST https://rohitghumare.com/mcp` and implements protocol version `2026-07-28`. ## Canonical profile - [About Rohit Ghumare](https://rohitghumare.com/about/index.md): Biography, expertise, current focus, and selected public work. - [Contact Rohit Ghumare](https://rohitghumare.com/contact/index.md): Public contact routes and the kinds of inquiries each route suits. - [Homepage in Markdown](https://rohitghumare.com/index.md): Extractable overview of projects, writing, guides, talks, and developer resources. - [Public profile page](https://rohitghumare.com/): Canonical HTML profile with Person, ProfilePage, WebSite, and Organization structured data. ## Agent and developer interfaces - [Agent instructions](https://rohitghumare.com/agent-instructions.md): Specific when-to-use, when-not-to-use, retrieval, and citation guidance. - [Rohit Ghumare Developer Resources](https://rohitghumare.com/developers/index.md): API, OpenAPI, Markdown negotiation, and MCP connection instructions. - [Portfolio MCP endpoint](https://rohitghumare.com/mcp): Read-only Streamable HTTP endpoint for profile, project, content, and published-resource discovery. - [OpenAPI description](https://rohitghumare.com/openapi.json): OpenAPI 3.1 description of the read-only public stats API. - [Live project statistics](https://rohitghumare.com/api/stats): Current GitHub, PyPI, and Docker metrics where available. - [XML sitemap](https://rohitghumare.com/sitemap.xml): Canonical crawlable pages. - [RSS feed](https://rohitghumare.com/feed.xml): New essays in publication order. ## Current writing - [Essay index in Markdown](https://rohitghumare.com/blog/index.md): Curated index of essays on agents, harnesses, protocols, inference, and software systems. - [Four Flash Models in Four Months. The Bill Per Task Went Up 40%.](https://rohitghumare.com/blog/flash-cadence/): Gemini 3.8 Flash at the same list price but about 40% more cost per task per Artificial Analysis, the effort-level economics, the January 1 doubling of the introductory price, and cache discipline for workhorse-tier agents. - [Fable 5.1 Burned the Meter in Twenty Minutes](https://rohitghumare.com/blog/fable-burned-the-meter/): Why Claude Fable 5.1 launched up to 45% cheaper and drained Max 20x five-hour meters in minutes the same day: API prices versus plan meters, effort, subagents, cache misses, and the Claude Code knobs that exist today. - [Fable 5.1 and Mythos 5.1: One Model, Two Doors](https://rohitghumare.com/blog/fable-5-1-two-doors/): Claude Fable 5.1 and Mythos 5.1 as one model behind two safeguard doors, the trusted access programs that gate the second, the arithmetic behind the 75 percent cache-read cut and the 25 and 45 percent savings claims, and the same-week restricted-twin releases from Google and OpenAI. - [Claude Has Two Meters. The 20x Is Only on One.](https://rohitghumare.com/blog/claude-two-meters/): How Claude's usage limits work: the rolling five-hour session meter that carries the 5x and 20x multipliers, the discretionary weekly meter above it, the September 14 arithmetic, the lawsuit and session-hijack context, and what drains both. - [OpenAI Cut Cursor Off. Five Percent Is the Interesting Number.](https://rohitghumare.com/blog/openai-cuts-cursor/): Analysis of OpenAI's August 28 notice ending its Cursor model contract after the SpaceX acquisition: the three access pipes, the change-of-control clock, the eight harness surfaces a vendor cutoff breaks, and re-routing the reported 5%. - [The Model Hardware Standard: Read, Write, and the Plate That Must Be There](https://rohitghumare.com/blog/model-hardware-standard/): Analysis of Anthropic's Model Hardware Standard research preview: read and write primitives, discoverable devices, natural-language reference files, pre-execution validation, three control surfaces (MCP, CLI, code files), partner drivers, and what remains unpublished. - [The Bulletin Board: How Isolated Agents Built a Message Bus Out of a Package Registry](https://rohitghumare.com/blog/the-bulletin-board/): Analysis of the 2026 OpenAI evaluation incident where isolated agents used a shared Artifactory registry as a message board, escalated via SSRF into Hugging Face, and what it shows about environment isolation, reward hacking, and chain-of-thought monitoring. - [MCP's New Roadmap: Events Without Sessions, Identity Without API Keys](https://rohitghumare.com/blog/mcp-roadmap-after-stateless/): Reading of MCP's August 2026 roadmap against the 2026-07-28 stateless core: multi round-trip requests with an opaque requestState, subscriptions without sessions, DPoP-bound tokens and workload identity, and the token cost of large tool catalogs. - [Grok Bot: The Agent Got a Computer. Your Bots Share It.](https://rohitghumare.com/blog/grok-bot-shared-computer/): Grok Bot as a runtime: an always-on cloud computer that logs into tools without APIs, shared by every Bot on an account per xAI's docs, the Cursor infrastructure underneath it, the open-source clone wave, and what isolation should mean. - [DFlash 2: The Drafter Stopped Guessing Alone](https://rohitghumare.com/blog/dflash-2-keep-drafting-parallel/): Mechanism-first read of Inco AI's DFlash 2 speculative drafter: why parallel block drafting stutters, how a pairwise path selector and a two-tap convolution fix it, and the published Qwen3.8-27B and Muse Glimmer acceptance and throughput numbers. - [All About the A2A Protocol](https://rohitghumare.com/blog/a2a-protocol/): Builder-focused guide to A2A v1.0, task states, transports, signed cards, and authorization. - [Stateless MCP](https://rohitghumare.com/blog/stateless-mcp/): Analysis of the MCP 2026-07-28 stateless protocol core and its operational effects. - [The Harness, Not the Model](https://rohitghumare.com/blog/coding-agent-harnesses/): Comparison of coding-agent harness decisions around context, tools, cost, and portability. - [Inside the Codex Harness](https://rohitghumare.com/blog/inside-the-codex-harness/): Compaction, transcript handling, and proof inside a coding-agent harness. - [Inside the Claude Code Harness](https://rohitghumare.com/blog/inside-the-claude-code-harness/): Context assembly, instruction files, and prompt-cache preservation. - [Inside the Pi Harness](https://rohitghumare.com/blog/inside-the-pi-harness/): Session trees, stable prompts, cache economics, and transparent accounting. - [The LLM Wiki](https://rohitghumare.com/blog/the-llm-wiki/): A compounding knowledge-base pattern that maintains structured pages over time. - [LLM Wiki v2](https://rohitghumare.com/blog/llm-wiki-v2/): Confidence, supersession, consolidation, graphs, and hybrid retrieval at scale. - [Graph Engineering Is 290 Years Old](https://rohitghumare.com/blog/graph-engineering/): Graph fundamentals applied to agent workflows and cost. ## Local model guides - [Guide index in Markdown](https://rohitghumare.com/guides/index.md): Curated local-model and inference-engine guide index. - [How to Run Qwen3.8-Flash-Next Locally](https://rohitghumare.com/guides/qwen3-8-flash-next/): Qwen3.8-Flash-Next (125B total, 6B active, 51B n-gram embeddings): file sizes per quant, placing the n-gram table on NVMe via mmap, Gated DeltaNet plus sparse-attention KV arithmetic at 1M context, decode ceilings by memory bandwidth, and llama.cpp and vLLM setup. - [How to Run GLM-5.3-Flash Locally](https://rohitghumare.com/guides/glm-5-3-flash/): The 320B A18B hybrid linear-plus-sparse attention model revealed from the ox-alpha stealth test: KV cache math, unsloth GGUF sizes, a machine fit planner, and per-engine commands for the pull requests and vendor images that run it today. - [Inside the Transformer](https://rohitghumare.com/guides/inside-the-transformer/): Attention, architecture changes, sampling, and serving through interactive mechanisms. - [Inside the vLLM Engine](https://rohitghumare.com/guides/inside-vllm/): Block pools, scheduling, speculative decoding, and grammar masking. - [Local LLM Hardware](https://rohitghumare.com/guides/hardware/): Memory arithmetic and a model-to-hardware fit calculator. - [Run Muse Glimmer Locally](https://rohitghumare.com/guides/muse-glimmer/): Model packaging, quantization choices, inference, and benchmark context. ## Open-source projects - [ai-engineering-from-scratch](https://github.com/rohitg00/ai-engineering-from-scratch): Free curriculum for building AI engineering knowledge from first principles. - [agentmemory](https://github.com/rohitg00/agentmemory): Persistent memory for AI coding agents. - [kubectl-mcp-server](https://github.com/rohitg00/kubectl-mcp-server): MCP server and interactive tools for Kubernetes. - [SkillKit](https://github.com/rohitg00/skillkit): Cross-agent CLI and marketplace for managing agent skills. - [pro-workflow](https://github.com/rohitg00/pro-workflow): Coding-agent workflow patterns, hooks, and review practices. ## Optional - [GitHub profile](https://github.com/rohitg00): Repositories and contribution history. - [LinkedIn profile](https://www.linkedin.com/in/rohit-ghumare): Professional history and public updates. - [X profile](https://x.com/ghumare64): Short-form technical updates. - [YouTube channel](https://www.youtube.com/channel/UCUqLb3YfBCeGep0h26nfT2w): Talks and recorded technical content. - [Older Medium writing](https://ghumare64.medium.com): DevOps and Kubernetes writing, mainly from Rohit's earlier focus.