#Tutorial/How-to

AIAnthropic added build-eval and hillclimb commands to its claude-api skill for designing evaluations and iteratively improving applications against them. The article covers eval design principles, including production-representative tasks, headroom and low variance, and guards against overfitting through train/test splits. Two examples report results: a customer support benchmark where cost fell to under half while accuracy rose, and a claude-api skill eval that rose from 66% to 88%.

Why it matters: The article gives a concrete workflow for designing evals and hillclimbing without overfitting, with two worked cost and performance examples that show the tradeoffs.

AIClaude Code developer Thariq (@trq212) released html-plan, a plugin that makes Claude Code generate self-contained single-file HTML plans instead of lengthy Markdown. The page organizes the plan into a layered tree with progressive disclosure, numbered decision points, and in-page feedback that can be pasted back into Claude Code. Install it with claude plugin marketplace add anthropics/claude-plugins-community, then claude plugin install html-plan@claude-community.

AIA data analysis agent built by @Sumanth_077 separates generation, deterministic guardrails, and review: Qwen writes read-only SELECT queries, code enforces hard rules such as a single SELECT, SQLite read-only mode, and a 200-line limit, and a separate TypeSafe AI Jev model checks question clarity, SQL relevance, and whether answers are grounded in returned rows. Answers that fail grounding are marked as unverified drafts while the SQL and data are kept for human inspection.

AIThe xAI Cookbook now has ten runnable Grok API examples across three tracks: real-time voice agents, multimodal generation, and live X data analysis. The author says four voice examples show the same Realtime Voice API across WebSocket, WebRTC, Twilio phone, and mobile transports. The four multimodal examples chain understanding, image generation or editing, video, and TTS, with Grok making creative decisions and Imagine models executing them.

AIJerry Liu argues that OCR, long dominated by brittle legacy systems, can be solved accurately and cheaply by applying agentic intelligence. He says a properly tuned agentic OCR dynamically allocates extra compute to complex elements, reviews and corrects failures, and builds semantic meaning across the page. He contends frontier models are overengineered for this task in cost and latency yet still struggle with complex edge cases.

AIX has launched @bot tagging that lets users reply to any post with commands like adding items to a Notion reading list, setting reminders, summarizing threads, or drafting replies. It works in replies, posts, and quotes, and routes requests to the user's Grok Bot.

AIParamount Skydance completed its roughly $110 billion acquisition of Warner Bros. Discovery on October 6, with the combined company renamed Skydance. Reports also say Moonshot AI finished a final private round at about a $50 billion valuation and is preparing a Hong Kong IPO for the first quarter of next year, while Microsoft and Meta reportedly asked employees to use Claude less.

AIGoogle's Developer Knowledge API offers an official, programmatic source of Google Cloud, Firebase, and Android documentation for AI agents and developer tools, replacing web scraping with structured, Markdown-formatted results. The ecosystem includes a gcloud CLI surface, an agent skill that works with MCP-compatible tools, API Explorer, and client libraries for C#, Go, Java, Node.js and TypeScript, PHP, Python, and Ruby.

AIElevenLabs now offers nine Text to Speech models and two Speech to Text models through OpenRouter, callable with an OpenRouter API key and no separate ElevenLabs plan. All ElevenLabs models are 50% off OpenRouter's list price through October 19, 8am PT, and Eleven v4, v4 Turbo, and Scribe v2 are recommended as starting points for narration, voice agents, and transcription.

Why it matters: The source gives a concrete three-step build path and model selection guidance, showing how speech models plug into an existing text API for voice agents and transcription.

AIInferact and the vLLM community reported a 1.9× low-concurrency speedup and about 5.3× throughput under a 150 TPS constraint for DeepSeek-V4.1-Flash over three weeks. Gains came from SWA bounded replay with CUDA graphs, which cut TTFT by about 30%, and from integrated DeepSeek kernels such as MegaAttention, Mega-mHC, Mega-Gate, and DeepSelect. The post measures these results on the SemiAnalysis AgentX benchmark.

Why it matters: The post breaks down how SWA bounded replay and fused kernels cut prefill and decode costs, a reusable engineering pattern for long-context agentic serving.

AILauren Tan notes that Grok Bot, which she often discusses in Slack, can also be added to Microsoft Teams. The post links to an x.ai bot plugin page for the integration.

AIFireworks' Head of AI Developer Education fine-tuned a 9B Jev-style classifier on Fireworks using plain SFT, public datasets, and two simple tricks. The full recipe is open source so developers can train their own decision classifiers without a frontier lab budget.

AIOpenAI's Tibo says users can talk through a meeting with a colleague without worrying about memory, then load that context into Codex to complete the work. The quoted ChatGPT Meetings plugin, in beta for Pro and Business macOS desktop users, takes notes and saves summaries and next steps in ChatGPT Space.

AIDevelopers are using OpenAI's Decisions API to route requests to the right model, tool, or agent and to turn scaled inputs into labels, rankings, and scores. The post also lists uses including analyzing images and video frames, choosing buttons or form actions from screenshots, flagging risky tool calls, and categorizing large datasets.

AIBoris Cherny says he used Opus 5.5 with Lean to formally verify the Claude Agent SDK, with a couple of short prompts producing 16 PRs fixing bugs and race conditions. He also reports that TLA+ works well, sometimes combined with Lean to find data flow, concurrency, and state management issues. The post links to his actual prompts as another example.

AIAnthropic's Boris Cherny says Claude works best when prompted like a coworker, with a clear goal and no heavy scaffolding. He says prompts now matter most for stating the desired task, the effort level, and how Claude should verify its result, whereas prompts mattered more in the Sonnet 3.5 era.

AIElvis Saravia argues that building good evals on top of AI systems can put a practitioner at the frontier of their domain or task quickly. He advises readers to learn eval construction, calling it worth the investment. The post responds to Garry Tan's point that agents writing markdown skills on cron jobs can handle most knowledge work.

AIfal announced a Claude Connector and GPT plugin that let users generate images and videos directly within Claude or ChatGPT Codex without an API key. The post links to a YouTube tutorial demonstrating the setup.

AINVIDIA's technical blog describes bitwise determinism for large-scale pretraining with Megatron Core, which makes training runs easier to debug, validate, and resume reproducibly. The source says these benefits matter most for models with trillions of parameters trained across thousands of GPUs, where multiple parallelism dimensions, low-precision computation, and distributed checkpointing complicate failure reproduction and fix validation.

AINVIDIA's DOCA GPUNetIO lets GPU applications control networking and data movement directly, rather than routing each transaction through the CPU. The source says host-driven network handling adds latency on the critical path and limits how quickly distributed applications can respond in real time. The provided text is truncated, so details of the unified software stack are not available.

AIAnthropic's ClaudeDevs says Claude Code cloud sessions run each task on a fresh VM, so users can start several at once. The sessions keep running after the user closes their laptop. A field guide covers seven suitable workflows and how to connect GitHub.

AIA developer used Grok Bot to build two Slack team bots, sandcastle for release management and poteto for engineering, automating their release and QA process. Sandcastle DMs contributors PR links, kicks off builds, and runs a fuzz swarm of 10+ Grok 4.7 xhigh agents, while poteto triages and fixes issues via Cursor Projects.

AIDex Horthy (@dexhorthy) announced episode #77 of his AI That Works series, titled "Building a Memory Pipeline," as a live broadcast. The post provides no further technical details about the pipeline's design, tools, or results.

AIAllie K. Miller suggests giving an AI agent a separate email address, which Instinct does automatically, and using it for junk signups so the agent filters that mail away from your main inbox. She compares it to Google Voice for email and argues retail emails will get less attention unless they give people a reason to reach the human inbox.

AIMerve Noyan has released a slide deck on running AI locally, covering prefill versus decode, MoE versus dense models, VRAM versus unified memory, quantization, and speculative decoding. The deck is built around llama.cpp and is free to reuse with attribution.

AIxAI has shared a complete cookbook repository on GitHub, linked at The post gives no further details about the repository's contents or purpose.

AIGrok can turn a pasted article or PDF into a podcast where two hosts discuss the content. Each script line is voiced as soon as it is written, so playback begins before the full script is finished. The example code is available in the xai-cookbook repository on GitHub.

AIThe xai-cookbook's x-sentiment-tracker lets users pick a topic, then has Grok run one X search per day over the last 10 days and score each post from -1 to +1. The dashboard displays the sentiment split, day-by-day movement, and the posts behind each score.

AIThe xai-cookbook example uses Grok to generate a Tailwind React component from a dropped-in screenshot. The page then screenshots its own render, overlays it on the original, and feeds the mismatches back so Grok can refine the layout, raising the match from 60% to 77% in one run.

AIA pipeline built with Grok takes a single product photo and produces an eight-second vertical ad, writing the brief, generating three scenes, selecting the best one, animating it, and adding a voiceover. Each run costs about $1.35, and the code is available in the xai-cookbook repository on GitHub.

AIxAI's storyboard-to-film example uses grok-4.7 to plan four shots from a one-line premise, then Grok Imagine draws and animates each one with text-to-speech narration. Every shot is an edit of the first keyframe, which keeps the main character consistent across scenes. The code is available in the xai-cookbook repository on GitHub.

AICursor has added five apps to its cookbook, all built on the new SpaceXAI TypeScript SDK. The apps cover premise-to-short-film, picture-to-video ads, screenshot-to-React-component, X posts-to-sentiment dashboard, and link-to-podcast conversion. Demos and code are available in the post.

AIBoris Cherny, who works at Anthropic, said he asked Opus 5.5 to build an interactive website companion for the latest Acquired episode on Home Depot. He noted that the watercolor illustrations on the site were also drawn by Claude.

AILauren Tan describes using Grok Bot to connect apps like Slack, email, and CRM so it can gather context and decide what work to do. She also explains scheduled and event-triggered routines, plus handing engineering tasks to Cursor cloud agents, with a daily feedback-to-merge loop example.

AIThe author spent two days building an internal enterprise platform on all Feishu data and a self-built MCP, replacing Feishu's native workbench to handle Vibe Coding app deployment, security, permissions, and app and skill circulation. A custom configuration interface is planned so employees can use their own Agents to modify their homepages and data pages.

AIReplit announced a livestream titled "Building a Viral Growth Engine," part of its Pro Series. The post provides no further details about the content or speakers.

AIGoogle Flow Music lets creators build custom instruments or effects from natural language, and Spaces can now be exported as VST3/AU plugins. These plugins run inside producers' Digital Audio Workstations, so tools can fit existing production workflows. The source gives producer Khris Riddick-Tynes's "No Chaser" plugin as an example for checking instrumentals and vocals.

AIHamel Husain argues that similar wording does not show whether an LLM answer works for a specific application, so teams should check concrete failure modes. He adds that similarity metrics can still help with retrieval evaluation and measuring output diversity.

AIDex Horthy reports that /show-me has been incorporated into the official Amp Code plugins. A linked GitHub pull request in the ampcode/official-plugins repository is referenced as the relevant change.

AIGeorgi Gerganov says users of Qwen3.8-27B with MTP can get extra speed by switching to DFlash speculative decoding in llama.cpp. The command uses --spec-type draft-dflash with --spec-draft-n-max 7, and it requires the latest llama.cpp v0.6.0.