769 pages for write.

Catch security issues as Claude writes code Claude Code CLI · title security-guidance Write a credential helper Claude Documentation · title third-party/claude-desktop/credential-helper Or, for the model with the same capabilities and no access approval requirement: Claude Developer Platform · in the page about-claude/models/migration-guide …var response = await client.Messages.Create(parameters); Console.WriteLine(response); ``` ```go Go client := anthropic.NewClient() response, err := client.Messages.New(conte… optimizing-for-cost-and-intelligence Claude Developer Platform · in the page about-claude/models/optimizing-for-cost-and-intelligence …icing) instead of the input price, and each turn pays the 1.25x cache-write rate only for what is new. **What good looks like.** * Over a full day of real traffic, agent loops read a median 84% of t… pricing Claude Developer Platform · in the page about-claude/pricing …| Base input tokens | 5m cache writes | 1h cache writes | Cache hits and refreshes | Output tokens | | :------------------------------------------------… commerce-agents Claude Developer Platform · in the page about-claude/use-case-guides/commerce-agents …and store terms only from tool results in the conversation, and cart writes accept only product IDs that a catalog or order tool returned in that session. Checkout stages a summary the customer confi… content-moderation Claude Developer Platform · in the page about-claude/use-case-guides/content-moderation …the results foreach (var comment in userComments) { Console.WriteLine($"\nComment: {comment}"); var (violation, violatedCategories, explanation) = await ModerateMessage(comment, unsafe… customer-support-chat Claude Developer Platform · in the page about-claude/use-case-guides/customer-support-chat …and closes out the conversation <Tip> In the real example that you write for your own use case, you might find it useful to write the actual words in this interaction so that you can also get a sen… legal-summarization Claude Developer Platform · in the page about-claude/use-case-guides/legal-summarization …eement.pdf" ); var documentText = GetLlmText(pdfData); Console.WriteLine(documentText[..Math.Min(50000, documentText.Length)]); ``` ```go Go import ( "bytes" "io" "net/http"… overview Claude Developer Platform · in the page about-claude/use-case-guides/overview …ld-with-claude/working-with-messages) gives you the most control: you write the agent loop and run your own tools and infrastructure. The [Claude Agent SDK](https://code.claude.com/docs/en/agent-sdk/o… ticket-routing Claude Developer Platform · in the page about-claude/use-case-guides/ticket-routing …issue type, urgency, required expertise, or other relevant factors. Write a ticket classification prompt. The initial prompt should contain the contents of the user request and return both the reaso… PDF Processing Claude Developer Platform · in the page agents-and-tools/agent-skills/best-practices …gents-and-tools/agent-skills/best-practices description: Learn how to write effective Skills that Claude can discover and use successfully. --- Good Skills are concise, well-structured, and tested wi… enterprise Claude Developer Platform · in the page agents-and-tools/agent-skills/enterprise …n patterns.** Look for instructions that read sensitive data and then write, send, or encode it for external transmission, including through Claude's conversational responses. <Warning> Never deplo… PDF Processing Claude Developer Platform · in the page agents-and-tools/agent-skills/overview …cs/en/agents-and-tools/agent-skills/best-practices"> Learn how to write effective Skills that Claude can discover and use successfully. </Card> </CardGroup> quickstart Claude Developer Platform · in the page agents-and-tools/agent-skills/quickstart …thropic" }); foreach (var skill in skills.Items) { Console.WriteLine($"{skill.ID}: {skill.DisplayName}"); } ``` ```go Go // List Anthropic-managed Skills skills, err := client.Sk… mcp-connector Claude Developer Platform · in the page agents-and-tools/mcp-connector …ar message = await client.Beta.Messages.Create(parameters); Console.WriteLine(message); ``` ```go Go client := anthropic.NewClient() response, err := client.Beta.Messages.New(context.TODO(… Edit docker-compose.yaml: increment the integer in the setup service's Claude Developer Platform · in the page agents-and-tools/mcp-tunnels/deploy-compose …``` The containers run as the non-root UID `65532` and need write access to `data/`. </Step> <Step title="Write docker-compose.yaml"> The compose file pins images by SHA… overview Claude Developer Platform · in the page agents-and-tools/mcp-tunnels/overview …ar message = await client.Beta.Messages.Create(parameters); Console.WriteLine(message); ``` ```go Go client := anthropic.NewClient() response, err := client.Beta.Messages.New(context.TODO(… quickstart Claude Developer Platform · in the page agents-and-tools/mcp-tunnels/quickstart …badge next to the tunnel's name goes away. </Step> <Step title="Write the sample MCP server"> <Tabs> <Tab title="macOS / Linux"> ```bash cat > hello_server.py <<'EOF'… reference Claude Developer Platform · in the page agents-and-tools/mcp-tunnels/reference …server certificate, registers the CA, retrieves the tunnel token, and writes all outputs to the destination. | Flag | Description… advisor-tool Claude Developer Platform · in the page agents-and-tools/tool-use/advisor-tool …r response = await client.Beta.Messages.Create(parameters); Console.WriteLine(response); ``` ```go Go client := anthropic.NewClient() response, err := client.Beta.Messages.New(context.TODO… bash-tool Claude Developer Platform · in the page agents-and-tools/tool-use/bash-tool …es in the current directory." }, ], } ); Console.WriteLine(response); ``` ```go Go client := anthropic.NewClient() response, err := client.Messages.New(context.TODO(), a… browser-use-sdk Claude Developer Platform · in the page agents-and-tools/tool-use/browser-use-sdk …rovider). With one, an agent takes a few lines of code. If none fits, write your own with a browser automation library such as Playwright. Most of this page is about the browser toolset. [Computer to… browser-use-tool Claude Developer Platform · in the page agents-and-tools/tool-use/browser-use-tool …var response = await client.Messages.Create(parameters); Console.WriteLine(response); ``` ```go Go client := anthropic.NewClient() response, err := client.Messages.New(context.TODO(), a… build-a-tool-using-agent Claude Developer Platform · in the page agents-and-tools/tool-use/build-a-tool-using-agent …content array contains a tool_use block alongside any text. Console.WriteLine($"stop_reason: {response.StopReason?.Raw()}"); // Find the tool_use block. A response may contain text blocks before… code-execution-tool Claude Developer Platform · in the page agents-and-tools/tool-use/code-execution-tool …}], Tools = [new CodeExecutionTool20250825()] }); Console.WriteLine(message); ``` ```go Go client := anthropic.NewClient() response, err := client.Messages.New(context.Background… computer-use-tool Claude Developer Platform · in the page agents-and-tools/tool-use/computer-use-tool …var response = await client.Messages.Create(parameters); Console.WriteLine(response); ``` ```go Go client := anthropic.NewClient() response, err := client.Messages.New(context.TODO(), a… define-tools Claude Developer Platform · in the page agents-and-tools/tool-use/define-tools …ts-and-tools/tool-use/define-tools description: Specify tool schemas, write effective descriptions, and control when Claude calls your tools. --- ## Prerequisites * Familiarity with the [tool use ov… fine-grained-tool-streaming Claude Developer Platform · in the page agents-and-tools/tool-use/fine-grained-tool-streaming …[ { "name": "make_file", "description": "Write text to a file", "eager_input_streaming": true, "input_schema": { "type": "object",… handle-tool-calls Claude Developer Platform · in the page agents-and-tools/tool-use/handle-tool-calls …rvice API is not available. Please try again later." <Tip> Write instructive error messages. Instead of generic errors such as `"failed"`, include what went wrong and what Claude should try… how-tool-use-works Claude Developer Platform · in the page agents-and-tools/tool-use/how-tool-use-works …on is responsible for. ### User-defined tools (client-executed) You write the schema, run the code, and return the results. This is the most common case: the vast majority of tool-use traffic is [us… manage-tool-context Claude Developer Platform · in the page agents-and-tools/tool-use/manage-tool-context …llapses a sequence of tool calls into a single code block that Claude writes and Anthropic's code execution sandbox runs. Rather than five roundtrips of `tool_use` and `tool_result`, Claude emits one… memory-tool Claude Developer Platform · in the page agents-and-tools/tool-use/memory-tool …-and-tools/tool-use/memory-tool#path-traversal-protection) before you write it. ## Basic usage <CodeGroup> ```bash cURL curl https://api.anthropic.com/v1/messages \ -H "x-api-key: $ANTHROPIC… overview Claude Developer Platform · in the page agents-and-tools/tool-use/overview …var message = await client.Messages.Create(parameters); Console.WriteLine(message.Content); ``` ```go Go client := anthropic.NewClient() response, err := client.Messages.New(context.TO… parallel-tool-use Claude Developer Platform · in the page agents-and-tools/tool-use/parallel-tool-use …lu_02", "is_error": true, "content": "Not executed: the preceding write_file call failed." } ``` The [computer use tool](https://platform.claude.com/docs/en/agents-and-tools/tool-use/computer-use… Process results programmatically Claude Developer Platform · in the page agents-and-tools/tool-use/programmatic-tool-calling …ammatic tool calling. --- Programmatic tool calling allows Claude to write code that calls your tools programmatically within a [code execution](https://platform.claude.com/docs/en/agents-and-tools/t… server-tools Claude Developer Platform · in the page agents-and-tools/tool-use/server-tools …ion = await client.Messages.Create(continuationParams); Console.WriteLine(continuation); } else { Console.WriteLine(response); } ``` ```go Go client := anthropic.NewClient()… strict-tool-use Claude Developer Platform · in the page agents-and-tools/tool-use/strict-tool-use …var message = await client.Messages.Create(parameters); Console.WriteLine(message); ``` ```go Go client := anthropic.NewClient() response, err := client.Messages.New(context.TODO(), an… text-editor-tool Claude Developer Platform · in the page agents-and-tools/tool-use/text-editor-tool …lp me fix it?", }, ], } ); Console.WriteLine(response); ``` ```go Go client := anthropic.NewClient() response, err := client.Messages.New(context.TODO(), a… tool-combinations Claude Developer Platform · in the page agents-and-tools/tool-use/tool-combinations …de execution analyzes and synthesizes. Claude searches for data, then writes Python to process, tabulate, or visualize it. This pairing is a good fit for questions that require both up-to-date informa… Log at info level Claude Developer Platform · in the page agents-and-tools/tool-use/tool-runner …); await foreach (var message in runner) { Console.WriteLine(message); } ``` </Tab> <Tab title="Go"> Define a tool with `toolrunner.NewBetaToolFromJSONSchema`. The… tool-search-tool Claude Developer Platform · in the page agents-and-tools/tool-use/tool-search-tool …var message = await client.Messages.Create(parameters); Console.WriteLine(message); ``` ```go Go client := anthropic.NewClient() response, err := client.Messages.New(context.TODO(), an… tool-use-with-prompt-caching Claude Developer Platform · in the page agents-and-tools/tool-use/tool-use-with-prompt-caching …t on your own `cache_control` markers. In the response `usage`, these writes appear under `cache_creation.ephemeral_5m_input_tokens`, so you might see 5-minute cache writes even when every `cache_cont… troubleshooting-tool-use Claude Developer Platform · in the page agents-and-tools/tool-use/troubleshooting-tool-use …tform.claude.com/docs/en/agents-and-tools/tool-use/define-tools"> Write schemas and descriptions that steer Claude toward the right tool. </Card> <Card title="Handle tool calls" href="https:/… web-fetch-tool Claude Developer Platform · in the page agents-and-tools/tool-use/web-fetch-tool …ion (`web_fetch_20260318`) supports **dynamic filtering**: Claude can write and execute code to filter fetched content before it reaches the context window, keeping only relevant information and disca… web-search-tool Claude Developer Platform · in the page agents-and-tools/tool-use/web-search-tool …h results. With `web_search_20260209` and later versions, Claude can write and run code that filters the search results before they reach the context window (**dynamic filtering**), keeping only rele… Beta Claude Developer Platform · in the page api/beta …tools' (thinking turned off, and any short progress updates the model writes between tool calls come back as thinking blocks). False exactly when a request that sends it gets a 400 from this model. A… beta-headers Claude Developer Platform · in the page api/beta-headers …Betas = ["context-management-2025-06-27"], } ); Console.WriteLine(string.Join("\n", message.Content)); ``` ```go Go client := anthropic.NewClient() message, err := client.Beta.… Agents Claude Developer Platform · in the page api/beta/agents …tart workflow runs. Each run follows a plan, a program that the agent writes. A plan can use predefined agents, which are the saved agents in `predefined_agents`, and inline agents, which it defines i… Archive Agent Claude Developer Platform · in the page api/beta/agents/archive …t reach a judgement on evaluates to ask. - `BetaManagedAgentsWriteToolConfig object` Configuration for the write tool. - `type: "write"` - `enabled: boolean`…