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Claude Code just shipped v2.1.69 with a new built-in skill: /claude-api It detects your language, picks the right surface (direct API, tool use, or Agent SDK), and loads the relevant reference docs directly into context. Covers streaming, batches, files API, structured outputs, tool use patterns, MCP, also sets model...

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Daniel San

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152,831 views • 4 months ago •via X (Twitter)

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There's a built-in agent inside Claude Code you can invoke just by telling Claude to use the claude-code-guide agent Save this... you'll need it It's not a local file in your project. It's a built-in subagent defined in Claude Code's system itself. It answers questions about Claude Code CLI, the Agent SDK, and the Claude API. It uses Glob, Grep, Read, WebFetch, and WebSearch, but can't edit or write files. Its only job is to answer questions.
0:22

There's a built-in agent inside Claude Code you can invoke just by telling Claude to use the claude-code-guide agent Save this... you'll need it It's not a local file in your project. It's a built-in subagent defined in Claude Code's system itself. It answers questions about Claude Code CLI, the Agent SDK, and the Claude API. It uses Glob, Grep, Read, WebFetch, and WebSearch, but can't edit or write files. Its only job is to answer questions.

Daniel San

57,240 views • 4 months ago

Tool use is now available in beta to all customers in the Anthropic Messages API, enabling Claude to interact with external tools using structured outputs.
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Tool use is now available in beta to all customers in the Anthropic Messages API, enabling Claude to interact with external tools using structured outputs.

Anthropic

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OMG we can't use Claude Code Max with other apps without an API key. - no api keys - claude agent sdk - persistent sse stream with claude Works fine. Stop the FUD and panic.
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OMG we can't use Claude Code Max with other apps without an API key. - no api keys - claude agent sdk - persistent sse stream with claude Works fine. Stop the FUD and panic.

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FastMCP 3.0 Skill is now available for Claude Code Install with: npx claude-code-templates@latest --skill=development/fastmcp-server --yes Adds 30 structured reference files + inside the skill, covering auth, context, features, providers, server setup, and more. If you’re building MCP servers, this gives Claude real, organized in-editor context to work with.
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FastMCP 3.0 Skill is now available for Claude Code Install with: npx claude-code-templates@latest --skill=development/fastmcp-server --yes Adds 30 structured reference files + inside the skill, covering auth, context, features, providers, server setup, and more. If you’re building MCP servers, this gives Claude real, organized in-editor context to work with.

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introducing the greptile partner program. we worked with top dev tool companies like stripe, openai, and datadog to teach greptile how best to use their APIs when greptile detects that your code touches a partner’s API, it reviews the code with additional context from the partner. it then flags the issue along with a link to the docs
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introducing the greptile partner program. we worked with top dev tool companies like stripe, openai, and datadog to teach greptile how best to use their APIs when greptile detects that your code touches a partner’s API, it reviews the code with additional context from the partner. it then flags the issue along with a link to the docs

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Anthropic released a TON of updates today: • Sonnet 4.5 (with context awareness) • Claude Code 2.0 (+ new mascot 🦀) • Claude API: context editing + memory tool Mike Krieger sat down for a special launch day chat about 4.5 and the Anthropic developer roadmap! (and more: • VS Code extension • Claude apps code execution and file creation • Claude for Chrome • Imagine with Claude) Available here or on our youtube channel:
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Anthropic released a TON of updates today: • Sonnet 4.5 (with context awareness) • Claude Code 2.0 (+ new mascot 🦀) • Claude API: context editing + memory tool Mike Krieger sat down for a special launch day chat about 4.5 and the Anthropic developer roadmap! (and more: • VS Code extension • Claude apps code execution and file creation • Claude for Chrome • Imagine with Claude) Available here or on our youtube channel:

Latent.Space

11,914 views • 9 months ago

Peter Steinberger Quietly Started A Shift That Makes Claude 35x Cheaper To Run The way Claude Code talks to tools matters more than people think. Most use MCP, and it quietly eats tokens, it loads everything into context every time, even tools you never call. One benchmark: MCP burned 35x more tokens than a CLI on the same task. Peter Steinberger, the OpenClaw guy, got annoyed by this and started building lean CLIs himself. That kicked off a tool called Printing Press. You point Claude Code at any website, even ones with no API like ESPN or Craigslist, and it builds a small command tool for it in about 10 minutes. In one demo, a request pulled 132,000 tokens of raw data, but the tool processed it locally and only handed Claude a 2,000-token summary. The rest never touched the context window. It also comes with ~50 ready-made tools you can grab right away. To start, point Claude Code at the links from and ask it to set it up. Bookmark this.
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Peter Steinberger Quietly Started A Shift That Makes Claude 35x Cheaper To Run The way Claude Code talks to tools matters more than people think. Most use MCP, and it quietly eats tokens, it loads everything into context every time, even tools you never call. One benchmark: MCP burned 35x more tokens than a CLI on the same task. Peter Steinberger, the OpenClaw guy, got annoyed by this and started building lean CLIs himself. That kicked off a tool called Printing Press. You point Claude Code at any website, even ones with no API like ESPN or Craigslist, and it builds a small command tool for it in about 10 minutes. In one demo, a request pulled 132,000 tokens of raw data, but the tool processed it locally and only handed Claude a 2,000-token summary. The rest never touched the context window. It also comes with ~50 ready-made tools you can grab right away. To start, point Claude Code at the links from and ask it to set it up. Bookmark this.

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Claude Code is terrible at UI design and everyone knows it so this guy fixed it by building an MCP that gives Claude its own AI design tool instead of going back and forth between a design platform and your code editor, Claude now creates the designs itself and drops them straight into your codebase the MCP has full context of your existing design system and project so everything it generates actually matches what you already have. one command to set up and it installs the MCP and skill files so Claude instantly knows how to use it if you're tired of the same Inter font, purple gradient, card grid layout on every project, this is definitely worth trying
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Claude Code is terrible at UI design and everyone knows it so this guy fixed it by building an MCP that gives Claude its own AI design tool instead of going back and forth between a design platform and your code editor, Claude now creates the designs itself and drops them straight into your codebase the MCP has full context of your existing design system and project so everything it generates actually matches what you already have. one command to set up and it installs the MCP and skill files so Claude instantly knows how to use it if you're tired of the same Inter font, purple gradient, card grid layout on every project, this is definitely worth trying

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We just gave the Base docs AI superpowers: - ai chatbot trained on all docs - ai enabled search - open pages directly in ChatGPT or Claude - docs mcp server to pipe context directly into your IDE I walk you through the details in this quick video
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We just gave the Base docs AI superpowers: - ai chatbot trained on all docs - ai enabled search - open pages directly in ChatGPT or Claude - docs mcp server to pipe context directly into your IDE I walk you through the details in this quick video

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We’ve added a CLI for Claude Platform to make every API endpoint runnable from your terminal. Call the Messages API, stand up Claude Managed Agents, pipe results straight into your shell. The ant CLI is well understood by coding agents (Claude Code) using the claude-api skill.
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We’ve added a CLI for Claude Platform to make every API endpoint runnable from your terminal. Call the Messages API, stand up Claude Managed Agents, pipe results straight into your shell. The ant CLI is well understood by coding agents (Claude Code) using the claude-api skill.

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4.1 vs Claude "search for the lifx api docs official and create a markdown file that documents the api. include auth, how to call the api, as well as a markdown table of all api endpionts and their parameters. save to the docs folder."
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4.1 vs Claude "search for the lifx api docs official and create a markdown file that documents the api. include auth, how to call the api, as well as a markdown table of all api endpionts and their parameters. save to the docs folder."

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Someone just shipped a Claude Code skill that uses Cloudflare’s new /crawl endpoint to scrape entire docs sites in one command. In the demo, it pulled 29 pages from the Claude docs in a single shot.
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Someone just shipped a Claude Code skill that uses Cloudflare’s new /crawl endpoint to scrape entire docs sites in one command. In the demo, it pulled 29 pages from the Claude docs in a single shot.

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Our new model Claude 2.1 offers an industry-leading 200K token context window, a 2x decrease in hallucination rates, system prompts, tool use, and updated pricing. Claude 2.1 is available over API in our Console, and is powering our chat experience.
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Our new model Claude 2.1 offers an industry-leading 200K token context window, a 2x decrease in hallucination rates, system prompts, tool use, and updated pricing. Claude 2.1 is available over API in our Console, and is powering our chat experience.

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Today we're launching Subconscious: a new platform for building agents with long-horizon reasoning and tool use, backed by MIT research. One API call. Tool use. Context beyond existing limits. If you're building agents, let's talk.
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Today we're launching Subconscious: a new platform for building agents with long-horizon reasoning and tool use, backed by MIT research. One API call. Tool use. Context beyond existing limits. If you're building agents, let's talk.

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New on the Claude Developer Platform: tool search, programmatic tool calling, and tool use examples. Together with effort control and context compaction, these let Claude run longer and do more with less intervention. Read more:
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New on the Claude Developer Platform: tool search, programmatic tool calling, and tool use examples. Together with effort control and context compaction, these let Claude run longer and do more with less intervention. Read more:

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I vibe-coded an AI agent for making presentations 🤖🖼️ - accessible to everyone and open-source! You can upload both your context files, as well as a style template (a file that captures the style of the presentation you want to create). Then you launch a prompt and watch the agent one-shot your presentation. After the presentation is generated, you can edit the text inline, chat with the agent to add/modify/delete slides, and export to Powerpoint or PDF. Built with Claude Code, powered by Claude Agent SDK + LlamaParse. Hosted on Vercel/Render. To use it, you do need to specify your LlamaCloud API key and Anthropic API key (see below). App: Repo: Sign up to LlamaCloud:
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I vibe-coded an AI agent for making presentations 🤖🖼️ - accessible to everyone and open-source! You can upload both your context files, as well as a style template (a file that captures the style of the presentation you want to create). Then you launch a prompt and watch the agent one-shot your presentation. After the presentation is generated, you can edit the text inline, chat with the agent to add/modify/delete slides, and export to Powerpoint or PDF. Built with Claude Code, powered by Claude Agent SDK + LlamaParse. Hosted on Vercel/Render. To use it, you do need to specify your LlamaCloud API key and Anthropic API key (see below). App: Repo: Sign up to LlamaCloud:

Jerry Liu

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Most API docs only show HTTP endpoints, but developers write code with SDKs. We're doing things differently with the Stainless Docs Platform, now available in early access. Stainless Docs are SDK-native. They update automatically when your API changes. Devs see your docs in the language of their choice with method signatures, types, and accurate code snippets.
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Most API docs only show HTTP endpoints, but developers write code with SDKs. We're doing things differently with the Stainless Docs Platform, now available in early access. Stainless Docs are SDK-native. They update automatically when your API changes. Devs see your docs in the language of their choice with method signatures, types, and accurate code snippets.

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Advent of Claude Day 17 - @ Mentions @ mentions in Claude Code may be overpowered: * Add one or many files into context instantly * Quickly list directories * Enable/disable/invoke MCP servers and subagents @ is the fastest path from "I need context" to "Claude has context."
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Advent of Claude Day 17 - @ Mentions @ mentions in Claude Code may be overpowered: * Add one or many files into context instantly * Quickly list directories * Enable/disable/invoke MCP servers and subagents @ is the fastest path from "I need context" to "Claude has context."

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27,634 views • 6 months ago

I just found a way to use Claude Code completely free. Claude Code is Anthropic’s terminal coding agent that usually needs a paid API key to run. But a viral GitHub project called Free Claude Code, now sitting at 37k stars, lets you skip the billing entirely. It works as a tiny proxy that sits between Claude Code and free model providers like NVIDIA NIM, OpenRouter, DeepSeek, and Gemini. Every request Claude Code would send to Anthropic gets quietly rerouted to a free model on the other side. The interface stays the same. What’s actually thinking behind it changes. Setup takes a couple of quick commands and a free API key from NVIDIA NIM or OpenRouter. Paste it into the local dashboard, pick a model, and you’re building. The catch is you’re not really using Claude anymore. But when the code ships, does the model badge matter? -- I have shared the Github Link in my free Whatsapp Community ↓
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I just found a way to use Claude Code completely free. Claude Code is Anthropic’s terminal coding agent that usually needs a paid API key to run. But a viral GitHub project called Free Claude Code, now sitting at 37k stars, lets you skip the billing entirely. It works as a tiny proxy that sits between Claude Code and free model providers like NVIDIA NIM, OpenRouter, DeepSeek, and Gemini. Every request Claude Code would send to Anthropic gets quietly rerouted to a free model on the other side. The interface stays the same. What’s actually thinking behind it changes. Setup takes a couple of quick commands and a free API key from NVIDIA NIM or OpenRouter. Paste it into the local dashboard, pick a model, and you’re building. The catch is you’re not really using Claude anymore. But when the code ships, does the model badge matter? -- I have shared the Github Link in my free Whatsapp Community ↓

Vaibhav Sisinty

36,083 views • 7 days ago