578 pages for stop.

prompting-claude-sonnet-5 Claude Developer Platform · in the page build-with-claude/prompt-engineering/prompting-claude-sonnet-5 …that is almost entirely thinking followed by a truncated answer and `stop_reason: "max_tokens"`. Raising `max_tokens` or dropping to `medium` effort resolves this. Because Claude Sonnet 5 uses a new… prompting-claude-sonnet-5-5 Claude Developer Platform · in the page build-with-claude/prompt-engineering/prompting-claude-sonnet-5-5 …engineering/prompting-claude-sonnet-5-5#calibrate-effort) * The model stops to check in before a coding task is done, or does more than you asked: [Steer initiative and scope](https://platform.claude.… refusals-and-fallback Claude Developer Platform · in the page build-with-claude/refusals-and-fallback …When that happens, you receive a normal response, not an error, with `stop_reason: "refusal"`. Its `stop_details.category` names the policy area (see [What a refusal looks like](https://platform.claud… search-results Claude Developer Platform · in the page build-with-claude/search-results …-guardrails/handle-streaming-refusals"> Detect and handle refusal stop reasons in streaming responses, and retry refused requests on a fallback model. </Card> <Card title="Citations" icon="bo… skills-guide Claude Developer Platform · in the page build-with-claude/skills-guide …t perform operations that require multiple turns. Handle `pause_turn` stop reasons: <CodeGroup exclude="shell:cURL, shell:CLI"> <CodeGroupItem language="cURL"> This workflow needs more logic th… streaming Claude Developer Platform · in the page build-with-claude/streaming …data. Each event uses an SSE event name (for example, `event: message_stop`), and includes the matching event `type` in its data. Each stream uses the following event flow: 1. `message_start`: conta… structured-outputs Claude Developer Platform · in the page build-with-claude/structured-outputs …the tool first (tool_use) or respond with JSON (text) console.log("Stop reason:", response.stop_reason); for (const block of response.content) { switch (block.type) { case "tool_use":… task-budgets Claude Developer Platform · in the page build-with-claude/task-budgets …ort findings." } ] } ``` Claude thinks, then emits a tool call and stops with `stop_reason: "tool_use"`: ```text { "role": "assistant", "content": [ { "type": "thinking", "thin… thinking Claude Developer Platform · in the page build-with-claude/thinking …internal reasoning as part of the response text may be refused with `stop_details.category: "reasoning_extraction"`. See [Refusal categories](https://platform.claude.com/docs/en/build-with-claude/ref… thinking-steering-and-cost Claude Developer Platform · in the page build-with-claude/thinking-steering-and-cost …ing, telling Claude Haiku 5.5 in the prompt to answer directly didn't stop it from thinking. See [Prompting Claude Sonnet 5.5](https://platform.claude.com/docs/en/build-with-claude/prompt-engineering/… thinking-troubleshooting Claude Developer Platform · in the page build-with-claude/thinking-troubleshooting …onfiguration 400 errors, empty or missing thinking blocks, max_tokens stops, and cache misses." --- <Note> To learn how zero data retention (ZDR) applies to this feature, see [API and data retentio… working-with-messages Claude Developer Platform · in the page build-with-claude/working-with-messages …", "text": "Hello!" } ], "model": "claude-opus-5-5", "stop_reason": "end_turn", "stop_sequence": null, "usage": { "input_tokens": 12, "output_tokens": 6 } } ``` Refusal… API usage primer for Claude Claude Developer Platform · in the page claude_api_primer …", "text": "Hello!" } ], "model": "claude-opus-5-5", "stop_reason": "end_turn", "stop_sequence": null, "usage": { "input_tokens": 12, "output_tokens": 6 } } ``` ### Mult… apply Claude Developer Platform · in the page cli-sdks-libraries/cli/apply …ant apply in CI Without a terminal, `ant apply` prints the plan and stops with `cannot ask for confirmation without a terminal; re-run with --yes to apply, or --dry-run to see the plan only`. Set up… quickstart Claude Developer Platform · in the page cli-sdks-libraries/cli/quickstart …u doing today? Is there something I can help you with?" } ], "stop_reason": "end_turn", "usage": { "input_tokens": 27, "output_tokens": 20 /*, ... */ } } ``` The response is the full API ob… apple-foundation-models Claude Developer Platform · in the page cli-sdks-libraries/libraries/apple-foundation-models …s per-request reasoning hints. The framework's named reasoning levels stop at high; to request more effort for a single request instead, pass a custom reasoning level naming the Claude effort (`.custo… openai-sdk Claude Developer Platform · in the page cli-sdks-libraries/libraries/openai-sdk …| | `stop` | All non-whitespace stop sequences work… middleware Claude Developer Platform · in the page cli-sdks-libraries/middleware …tionToken)`; go: `next(req)`; java: `nextClient.execute(request, requestOptions)`; php: `$next($request)`; ruby: `call_next.call(request)`) to forward the request to the rest of the chain (or directly… go Claude Developer Platform · in the page cli-sdks-libraries/sdks/go …ge.GetNextPage() } if err != nil { panic(err.Error()) } ``` ## RequestOptions This library uses the functional options pattern. Functions defined in the `option` package return a `RequestOption`, w… java Claude Developer Platform · in the page cli-sdks-libraries/sdks/java …ssage; Message message = client .messages() .create(params, RequestOptions.builder().timeout(Duration.ofSeconds(30)).build()); ``` Or configure the default for all method calls at the client lev… php Claude Developer Platform · in the page cli-sdks-libraries/sdks/php …mingTransporter` request option: ```php $client = new Client( requestOptions: RequestOptions::with(streamingTransporter: $myStreamingClient), ); ``` ## Error handling When the library is unable t… get-api-key Claude Developer Platform · in the page get-api-key …pe, which determines what the key can do, where it works, and when it stops working. A **personal key** acts as you, and stops working if you leave an organization. A **service account key** represent… get-started Claude Developer Platform · in the page get-started …able energy news 2025\"\n- ..." } ], "stop_reason": "end_turn", "stop_sequence": null, "stop_details": null, "usage": { "input… intro Claude Developer Platform · in the page intro …se structure, including multi-turn conversations, system prompts, and stop reasons. [Read the Messages API guide](https://platform.claude.com/docs/en/build-with-claude/working-with-messages) </… access-transparency-log Claude Developer Platform · in the page manage-claude/access-transparency-log …aily. Hourly is reasonable. * **Disenrollment:** If your organization stops using Access Transparency, nothing is deleted. Your log stays readable through the same endpoints. If Access Transparency is… admin-api Claude Developer Platform · in the page manage-claude/admin-api …m/docs/en/manage-claude/authentication#key-types). Personal keys stop working when their user is removed from the organization. Service account keys stop working if their service account is archi… app-attest Claude Developer Platform · in the page manage-claude/app-attest …to your app's Claude configuration. ## Revoke an app integration To stop a compromised or retired app, revoke its integration. In the Claude Console, go to the [App integrations](https://platform.cl… authentication Claude Developer Platform · in the page manage-claude/authentication …pe, which determines what the key can do, where it works, and when it stops working: | Key type | Acts as… Fetch the first page (newest activities first). Claude Developer Platform · in the page manage-claude/compliance-activity-feed …each request, and both schemes return `has_more` so you know when to stop. The session endpoints (local and remote) are the exception: they return `next_page` without `has_more`, so stop when `next_p… compliance-api-access Claude Developer Platform · in the page manage-claude/compliance-api-access …r account team. <Warning> **Turning the Compliance API off stops activity recording.** An organization admin can turn the Compliance API off at any time with the same **Compliance API** tog… WARNING: This operation PERMANENTLY deletes the chat, all of its messages, Claude Developer Platform · in the page manage-claude/compliance-content-data …, and entire projects. A hard-deleted chat cannot be restored, and it stops appearing in list responses afterward. * [Delete chat](https://platform.claude.com/docs/en/api/compliance/apps/chats/delete… compliance-errors Claude Developer Platform · in the page manage-claude/compliance-errors …copy the `first_id` or `last_id` value returned by the previous page; stop when `has_more` is `false`. Do not construct cursors from object IDs. The directory, project, and session endpoints (organiz… compliance-faq Claude Developer Platform · in the page manage-claude/compliance-faq …nage-claude/access-transparency), turning the Compliance API off also stops Access Transparency event delivery. Activity that is not recorded while the Compliance API is off cannot be recovered later.… before_id is the first_id from a previous response Claude Developer Platform · in the page manage-claude/compliance-integration-patterns …y passing the response's `last_id` as `after_id` on the next request (stopping when `has_more` is `false`), or choose a smaller time window. See [Paginate results](https://platform.claude.com/docs/en/… compliance-sessions Claude Developer Platform · in the page manage-claude/compliance-sessions …ge` value back as the `page` query parameter on the next request, and stop when `next_page` is `null`. The response has no `has_more` field. Complete a list walk within 24 hours of starting it; an old… inference-hooks Claude Developer Platform · in the page manage-claude/inference-hooks …ailures attributable to your server trip a circuit breaker: Anthropic stops contacting it and applies your failure handling setting to every request, then resets the breaker automatically once it dete… inference-hooks-configuration Claude Developer Platform · in the page manage-claude/inference-hooks-configuration …er is unreachable or verdicts time out: * **Block the request:** stop inference when your AI security server can't deliver a verdict (fail closed). * **Allow the request:** let the request pr… inference-hooks-endpoint Claude Developer Platform · in the page manage-claude/inference-hooks-endpoint …me Claude Code gives it, in the form `mcp__<server>__<tool>`. A deny stops the call before Claude Code runs it. The exchange between Claude Code and a local server doesn't pass through Anthropic, so… opentelemetry Claude Developer Platform · in the page manage-claude/opentelemetry …ocs/en/managed-agents/tools) `list_issues`, so the turn ends with the stop reason `requires_action`. 6. The session tool runner runs `list_issues` (shown as the `anthropic.custom_tool_use list_issues`… sdk Claude Developer Platform · in the page manage-claude/opentelemetry/sdk …| Stop sending trace context and baggage headers with requests, for example when your HTTP client instrumentation already sends them… organization-webhooks Claude Developer Platform · in the page manage-claude/organization-webhooks …doesn't clear the list: the endpoint keeps the event types it had. To stop deliveries, send `"state": "disabled"` or delete the endpoint. To turn an endpoint back on, including after Anthropic disabl… plugins-api Claude Developer Platform · in the page manage-claude/plugins-api …then remove the group's setting. Setting the organization-wide value stops the plugin from inheriting its marketplace default; [removing the organization-wide setting](https://platform.claude.com/doc… user-management Claude Developer Platform · in the page manage-claude/user-management …m.claude.com/docs/en/manage-claude/spend-limits-api), if one existed, stops applying to them. Requires the `write:rbac_groups` scope. For complete parameter details and response schemas, see [Delete… user-profiles Claude Developer Platform · in the page manage-claude/user-profiles …account or asks you to erase their data. Before you delete a profile, stop sending its ID on that end customer's requests. If the end customer stays with you after an erasure request, create a new pro… user-profiles-verification-portal Claude Developer Platform · in the page manage-claude/user-profiles-verification-portal …rl ``` </CodeGroup> The response contains the link and the time it stops working: ```text wrap { "type": "user_profile_action_url", "url": "https://portal.anthropic.com/enroll?enrollment_token… workspaces Claude Developer Platform · in the page manage-claude/workspaces …nnot create keys in it manually from the Console. * A Claude Code key stops working if its owner is removed from the workspace or organization, unlike a workspace key. * Claude Code usage is rate-limi… agent-setup Claude Developer Platform · in the page managed-agents/agent-setup …il`; java: `Optional.empty()`; go: `param.Null[string]()`; php: `requestOptions: ['extraBodyParams' => ['system' => null, 'description' => null]]`). `model` (csharp, go: `Model`) and `name` (csharp, g… budgets Claude Developer Platform · in the page managed-agents/budgets …ssion consumes at public list rates (the session's **list cost**) and stops issuing new model requests once that cost reaches the budget. The request in flight when the cap is crossed still completes,… choosing-an-environment Claude Developer Platform · in the page managed-agents/choosing-an-environment …d-agents/self-hosted-sandboxes#quickstart) covers all three. * **What stops working:** The features listed in [What you take on and give up with a self-hosted sandbox](https://platform.claude.com/docs… dreams Claude Developer Platform · in the page managed-agents/dreams …sts with partial contents so you can inspect what was produced before stopping; clean it up through the Memory Stores API if you don't need it. <Warning> While a dream is `pending` or `running`, th…