https://kumma.meEssays by Kummahttps://kumma.me/blog/en/testing-ai-systems-like-softwarehttps://kumma.me/blog/en/testing-ai-systems-like-softwareWed, 08 Jul 2026 00:00:00 GMTIt worked when you tried it is not a test for any LLM system. Here is how to build an eval discipline that catches prompt, model, and retrieval breaks.https://kumma.me/blog/en/telephony-gotchas-sip-audiohttps://kumma.me/blog/en/telephony-gotchas-sip-audioWed, 08 Jul 2026 00:00:00 GMTYour voice agent works on localhost because localhost hides everything a phone line does to audio. Here is what breaks the moment a real call hits SIP.https://kumma.me/blog/en/regression-testing-a-voice-agenthttps://kumma.me/blog/en/regression-testing-a-voice-agentWed, 08 Jul 2026 00:00:00 GMTA one-line prompt or timer change can silently break a call flow. How to build a regression harness that replays real calls and asserts on structured output.https://kumma.me/blog/en/off-the-shelf-ai-phone-tool-vs-answering-service-vs-custom-agenthttps://kumma.me/blog/en/off-the-shelf-ai-phone-tool-vs-answering-service-vs-custom-agentWed, 08 Jul 2026 00:00:00 GMTOff-the-shelf voice AI, an answering service, or a custom-built agent? An honest, no-hype breakdown of which one a small business should actually pick.https://kumma.me/blog/en/latency-budget-twilio-deepgram-voice-agenthttps://kumma.me/blog/en/latency-budget-twilio-deepgram-voice-agentWed, 08 Jul 2026 00:00:00 GMTWhat each stage of a phone voice agent actually costs — telephony, Deepgram STT, LLM, and TTS — using vendors' own published latency figures, not guesses.https://kumma.me/blog/en/choosing-a-speech-to-text-and-tts-stack-2026https://kumma.me/blog/en/choosing-a-speech-to-text-and-tts-stack-2026Wed, 08 Jul 2026 00:00:00 GMTHow to pick streaming STT and TTS for a real-time phone agent, judged on the numbers a caller feels: streaming latency, partial stability, and tail latency.https://kumma.me/blog/en/ai-receptionists-for-small-business-explainedhttps://kumma.me/blog/en/ai-receptionists-for-small-business-explainedWed, 08 Jul 2026 00:00:00 GMTA plain-English guide to AI receptionists for small business: what they do, how they actually work, what they cost, and who should skip them entirely.https://kumma.me/blog/en/does-an-ai-receptionist-actually-workhttps://kumma.me/blog/en/does-an-ai-receptionist-actually-workTue, 07 Jul 2026 00:00:00 GMTThe honest answer to whether an AI phone agent can handle real callers without embarrassing you: how it deals with mumbling, mind-changing, and its mistakes.https://kumma.me/blog/en/kota-real-time-voice-pipelinehttps://kumma.me/blog/en/kota-real-time-voice-pipelineMon, 15 Jun 2026 00:00:00 GMTKOTA takes messy, real-time speech over the phone and resolves it into a structured order the kitchen can act on. Here is the pipeline, and the parts that were actually hard.https://kumma.me/blog/en/archon-agent-orchestrationhttps://kumma.me/blog/en/archon-agent-orchestrationFri, 12 Jun 2026 00:00:00 GMTMost agents are one prompt in a loop. Archon is a control plane: it routes across models, runs tools over MCP, keeps compressed memory, and hands real work to coding agents through a worker router.https://kumma.me/blog/en/market-systems-decision-qualityhttps://kumma.me/blog/en/market-systems-decision-qualityMon, 08 Jun 2026 00:00:00 GMTA trade can be right and lose, or wrong and win. I built tooling that scores decision quality and enforces process, treating the market as a noisy real-time system rather than a slot machine.https://kumma.me/blog/en/On-Emotionshttps://kumma.me/blog/en/On-EmotionsSun, 26 Oct 2025 00:00:00 GMTEmotions aren’t something to control—they’re a part of you, quietly reminding you where it hurts. Learning to befriend them is where real growth begins.https://kumma.me/blog/en/camus-the-stranger-analysishttps://kumma.me/blog/en/camus-the-stranger-analysisSat, 25 Oct 2025 00:00:00 GMTA deep dive into Albert Camus's The Stranger, exploring themes of authenticity, the absurd, and finding freedom in a world that demands conformity.https://kumma.me/blog/en/Same-Lighthttps://kumma.me/blog/en/Same-LightSat, 25 Oct 2025 00:00:00 GMTSpirituality isn’t about sides — it’s about direction. Through faith or awareness, belief or observation, we’re all moving toward the same quiet coherence of love and truth.https://kumma.me/blog/en/generative-art-with-codehttps://kumma.me/blog/en/generative-art-with-codeWed, 15 Jan 2025 00:00:00 GMTExploring the intersection of code and creativity to produce unique visual art through algorithms and mathematical beauty.https://kumma.me/blog/zh/On-Emotionshttps://kumma.me/blog/zh/On-EmotionsSun, 26 Oct 2025 00:00:00 GMT情绪不是要被控制的，它是你的一部分，是生活在提醒你该回头看看哪儿疼了。学会和它做朋友，才是走向成熟的开始。https://kumma.me/blog/zh/Same-Lighthttps://kumma.me/blog/zh/Same-LightSat, 25 Oct 2025 00:00:00 GMT有时候，灵性并不是一条答案之路，而是一种走向——走向平静、意义与爱。https://kumma.me/blog/zh/generative-art-with-codehttps://kumma.me/blog/zh/generative-art-with-codeWed, 15 Jan 2025 00:00:00 GMT探索代码与创造力的交集，通过算法和数学之美产生独特的视觉艺术。