50 pages for stop.

Stop Work Claude Developer Platform · title api/beta/environments/work/stop handling-stop-reasons Claude Developer Platform · title build-with-claude/handling-stop-reasons Or, for the model with the same capabilities and no access approval requirement: Claude Developer Platform · in the page about-claude/models/migration-guide …laude Fable 5 runs safety classifiers that can decline requests with `stop_reason: "refusal"`. Claude Mythos 5 does not include these classifiers. See [Refusals and fallback](https://platform.claude.c… optimizing-for-cost-and-intelligence Claude Developer Platform · in the page about-claude/models/optimizing-for-cost-and-intelligence …cs/en/api/rate-limits#setting-lower-limits-for-workspaces) as the backstop. * **Tradeoffs** exchange cost for intelligence: model choice, effort, output caps and task budgets, and multi-model architec… claude-api-skill Claude Developer Platform · in the page agents-and-tools/agent-skills/claude-api-skill …4.8 and Claude Opus 4.7 * **Refusal fallback configuration**, adding `stop_reason: "refusal"` handling before reading response content and setting up a [fallback retry path](https://platform.claude.co… enterprise Claude Developer Platform · in the page agents-and-tools/agent-skills/enterprise …ur evaluation suite to measure recall accuracy as you add Skills, and stop adding when performance degrades. Note that API requests support a maximum of 20 Skills for each request (see [Using Skills… quickstart Claude Developer Platform · in the page agents-and-tools/agent-skills/quickstart …"code_execution_20260521", "name": "code_execution"}], ) print(f"stop_reason={response.stop_reason}, blocks={len(response.content)}") ``` ```typescript TypeScript // Create a message with… console Claude Developer Platform · in the page agents-and-tools/mcp-tunnels/console …other MCP server. </Note> ## Archive a tunnel Archiving immediately stops the tunnel from accepting connections and is permanent. In the **MCP tunnels** list, open the row menu for the tunnel and c… 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 …network_mode: "service:mcp-proxy" restart: unless-stopped user: "65532:65532" read_only: true security_opt: - no-new-privileges:tr… quickstart Claude Developer Platform · in the page agents-and-tools/mcp-tunnels/quickstart …g.yaml:ro - ./data:/data:ro restart: unless-stopped cloudflared: image: cloudflare/cloudflared@sha256:6b599ca3e974349ead3286d178da61d291961182ec3fe9c50… security Claude Developer Platform · in the page agents-and-tools/mcp-tunnels/security …TLS keys, or proxy host has been compromised: <Steps> <Step title="Stop the tunnel stack"> <Tabs> <Tab title="Helm"> ```bash helm uninstall mcp-tunnel -n mcp-tunnel… advisor-tool Claude Developer Platform · in the page agents-and-tools/tool-use/advisor-tool …---------------------------- | | `advisor_result` | `text`, `stop_reason` | The advisor model returns plaintext (for example, Claude Opus 4.8). | | `advisor_redacted_result` | `e… bash-tool Claude Developer Platform · in the page agents-and-tools/tool-use/bash-tool …] ) puts response ``` </CodeGroup> Claude responds with `stop_reason: "tool_use"` and a `tool_use` block that contains the command for your application to run: ```json Output { "id": "… browser-use-tool Claude Developer Platform · in the page agents-and-tools/tool-use/browser-use-tool …puts response ``` </CodeGroup> Claude's first response ends with `stop_reason: "tool_use"` and carries one or more member `tool_use` blocks, each naming a member tool in `name` and carrying `"tool… build-a-tool-using-agent Claude Developer Platform · in the page agents-and-tools/tool-use/build-a-tool-using-agent …determines that a tool call is needed, the response comes back with `stop_reason: "tool_use"` and a `tool_use` content block containing the tool name, a unique `id`, and the structured `input`. Your… code-execution-tool Claude Developer Platform · in the page agents-and-tools/tool-use/code-execution-tool …t the `container` parameter to get a new container. ### `pause_turn` stop reason The response might include a `pause_turn` stop reason, which indicates that the API paused a long-running turn. You m… computer-use-tool Claude Developer Platform · in the page agents-and-tools/tool-use/computer-use-tool …`` </CodeGroup> When Claude acts on the desktop, the response has a `stop_reason` of `tool_use` and contains one or more member `tool_use` blocks, each naming a member tool and carrying `"toolset_nam… fine-grained-tool-streaming Claude Developer Platform · in the page agents-and-tools/tool-use/fine-grained-tool-streaming …might receive partial or invalid JSON. A response that ends with the [stop reason](https://platform.claude.com/docs/en/build-with-claude/handling-stop-reasons) `max_tokens` can also cut a parameter of… handle-tool-calls Claude Developer Platform · in the page agents-and-tools/tool-use/handle-tool-calls …s). ## Handling results from client tools The response will have a `stop_reason` of `tool_use` and one or more `tool_use` content blocks that include: * `id`: A unique identifier for this particula… how-tool-use-works Claude Developer Platform · in the page agents-and-tools/tool-use/how-tool-use-works …ut back to the model before the response reaches you, unless the loop stops before it finishes, most often because it pauses. The response you receive contains `server_tool_use` blocks showing what r… memory-tool Claude Developer Platform · in the page agents-and-tools/tool-use/memory-tool …, }) if err != nil { log.Fatal(err) } if message.StopReason != anthropic.StopReasonToolUse { for _, block := range message.Content { if block.Type == "text" { fm… overview Claude Developer Platform · in the page agents-and-tools/tool-use/overview …sh` and `text_editor`) run in your application. Claude responds with `stop_reason: "tool_use"` and one or more `tool_use` blocks. Your code executes the operation and sends back a `tool_result`. **Ser… parallel-tool-use Claude Developer Platform · in the page agents-and-tools/tool-use/parallel-tool-use …## Execution semantics When Claude calls tools, the response has a `stop_reason` of `tool_use` and can contain several `tool_use` blocks in a single assistant turn. How you run those calls is your d… Process results programmatically Claude Developer Platform · in the page agents-and-tools/tool-use/programmatic-tool-calling …"] } ] ) puts message ``` </CodeGroup> The response stops with `stop_reason: "tool_use"`, a `container` ID, and a `tool_use` block for `query_database` whose `caller` field identifie… server-tools Claude Developer Platform · in the page agents-and-tools/tool-use/server-tools …ol_use` block appears without its result, and the response ends with `stop_reason: "tool_use"`. The API runs the tool when you return the client `tool_result` blocks in your next request. ## The serv… text-editor-tool Claude Developer Platform · in the page agents-and-tools/tool-use/text-editor-tool …"id": "msg_01XAbCDeFgHiJkLmNoPQrStU", "model": "claude-opus-5", "stop_reason": "tool_use", "role": "assistant", "content": [ { "type": "text", "text": "I'll help you fix the s… Log at info level Claude Developer Platform · in the page agents-and-tools/tool-use/tool-runner …= 8192; for await (const message of runner) { if (message.stop_reason === "max_tokens") { const current = runner.params.max_tokens; if (current >= MAX_TOKEN_CEILING) {… tool-search-tool Claude Developer Platform · in the page agents-and-tools/tool-use/tool-search-tool …talog, discovers `get_weather`, and calls it. The response ends with `stop_reason: "tool_use"`. Execute the discovered tool and return a `tool_result` as in [Handle tool calls](https://platform.claude… troubleshooting-tool-use Claude Developer Platform · in the page agents-and-tools/tool-use/troubleshooting-tool-use …s for the client `tool_use` ids and keep the same `tools` array. See [Stop reasons and fallback](https://platform.claude.com/docs/en/build-with-claude/handling-stop-reasons#tool-use).… web-fetch-tool Claude Developer Platform · in the page agents-and-tools/tool-use/web-fetch-tool …same group of parallel tool calls: the API returns the response with `stop_reason: "tool_use"` before that fetch has run, then runs the fetch when you send back the client `tool_result` blocks. See [M… web-search-tool Claude Developer Platform · in the page agents-and-tools/tool-use/web-search-tool …"server_tool_use": { "web_search_requests": 1 } }, "stop_reason": "end_turn" } ``` This example shows a direct search. When a search runs through [dynamic filtering](https://platfor… Federation Rules Claude Developer Platform · in the page api/admin/federation_rules …rchive` Archive a federation rule. Token exchange through this rule stops immediately. Idempotent; re-archiving returns the rule with its original `archived_at`. Archiving clears the rule's workspac… Archive Federation Rule Claude Developer Platform · in the page api/admin/federation_rules/archive …rchive` Archive a federation rule. Token exchange through this rule stops immediately. Idempotent; re-archiving returns the rule with its original `archived_at`. Archiving clears the rule's workspac… Beta Claude Developer Platform · in the page api/beta …ax_tokens: number` The maximum number of tokens to generate before stopping. Note that our models may stop _before_ reaching this maximum. This parameter only specifies the absolute maximum numb… Deployments Claude Developer Platform · in the page api/beta/deployments …anagedAgentsBudgetLimit or null` A hard spend ceiling. The session stops issuing new model requests once the tracked list cost reaches `max_list_cost`. - `max_list_cost: BetaMonetaryAmount`… Archive Deployment Claude Developer Platform · in the page api/beta/deployments/archive …agedAgentsBudgetLimit or null` A hard spend ceiling. The session stops issuing new model requests once the tracked list cost reaches `max_list_cost`. - `max_list_cost: BetaMonetaryAmount`… Create Deployment Claude Developer Platform · in the page api/beta/deployments/create …anagedAgentsBudgetLimit or null` A hard spend ceiling. The session stops issuing new model requests once the tracked list cost reaches `max_list_cost`. - `max_list_cost: BetaMonetaryAmount`… List Deployments Claude Developer Platform · in the page api/beta/deployments/list …agedAgentsBudgetLimit or null` A hard spend ceiling. The session stops issuing new model requests once the tracked list cost reaches `max_list_cost`. - `max_list_cost: BetaMonetaryAmount`… Pause Deployment Claude Developer Platform · in the page api/beta/deployments/pause …agedAgentsBudgetLimit or null` A hard spend ceiling. The session stops issuing new model requests once the tracked list cost reaches `max_list_cost`. - `max_list_cost: BetaMonetaryAmount`… Get Deployment Claude Developer Platform · in the page api/beta/deployments/retrieve …agedAgentsBudgetLimit or null` A hard spend ceiling. The session stops issuing new model requests once the tracked list cost reaches `max_list_cost`. - `max_list_cost: BetaMonetaryAmount`… Unpause Deployment Claude Developer Platform · in the page api/beta/deployments/unpause …agedAgentsBudgetLimit or null` A hard spend ceiling. The session stops issuing new model requests once the tracked list cost reaches `max_list_cost`. - `max_list_cost: BetaMonetaryAmount`… Update Deployment Claude Developer Platform · in the page api/beta/deployments/update …anagedAgentsBudgetLimit or null` A hard spend ceiling. The session stops issuing new model requests once the tracked list cost reaches `max_list_cost`. - `max_list_cost: BetaMonetaryAmount`… Environments Claude Developer Platform · in the page api/beta/environments …item - `"queued"` - `"starting"` - `"active"` - `"stopping"` - `"stopped"` - `stop_requested_at: string or null` RFC 3339 timestamp when stop was requested - `stopp… Work Claude Developer Platform · in the page api/beta/environments/work …item - `"queued"` - `"starting"` - `"active"` - `"stopping"` - `"stopped"` - `stop_requested_at: string or null` RFC 3339 timestamp when stop was requested - `stopp… Acknowledge Work Claude Developer Platform · in the page api/beta/environments/work/ack …item - `"queued"` - `"starting"` - `"active"` - `"stopping"` - `"stopped"` - `stop_requested_at: string or null` RFC 3339 timestamp when stop was requested - `stopp… Record Heartbeat Claude Developer Platform · in the page api/beta/environments/work/heartbeat …g" or "active" or 2 more` Current state of the work item (active/stopping/stopped) - `"queued"` - `"starting"` - `"active"` - `"stopping"` - `"stopped"` - `ttl_seconds… List Work Items Claude Developer Platform · in the page api/beta/environments/work/list …- `"queued"` - `"starting"` - `"active"` - `"stopping"` - `"stopped"` - `stop_requested_at: string or null` RFC 3339 timestamp when stop was requested… Poll for Work Claude Developer Platform · in the page api/beta/environments/work/poll …item - `"queued"` - `"starting"` - `"active"` - `"stopping"` - `"stopped"` - `stop_requested_at: string or null` RFC 3339 timestamp when stop was requested - `stopp… Get Work Item Claude Developer Platform · in the page api/beta/environments/work/retrieve …item - `"queued"` - `"starting"` - `"active"` - `"stopping"` - `"stopped"` - `stop_requested_at: string or null` RFC 3339 timestamp when stop was requested - `stopp… Update Work Item Claude Developer Platform · in the page api/beta/environments/work/update …item - `"queued"` - `"starting"` - `"active"` - `"stopping"` - `"stopped"` - `stop_requested_at: string or null` RFC 3339 timestamp when stop was requested - `stopp…