50 pages for append.

optimizing-for-cost-and-intelligence Claude Developer Platform · in the page about-claude/models/optimizing-for-cost-and-intelligence …ude/mid-conversation-system-messages), a `{"role": "system"}` message appended to `messages`, instead of editing the top-level `system` field: the cached prefix stays intact. Check that page for which… customer-support-chat Claude Developer Platform · in the page about-claude/use-case-guides/customer-support-chat …s_user_input(self, user_input): self.session_state.messages.append({"role": "user", "content": user_input}) response_message = self.generate_message( messages=self.s… mcp-connector Claude Developer Platform · in the page agents-and-tools/mcp-connector …etaMCPToolParam for _, tool := range listing.Tools { toolNames = append(toolNames, tool.Name) pinnedTools = append(pinnedTools, anthropic.BetaMCPToolParam{ Name: tool.Name, Desc… console Claude Developer Platform · in the page agents-and-tools/mcp-tunnels/console …l fields: **Subdomain** (prefixed to the tunnel domain) and **Path** (appended after it). Fill in one or both, depending on how your proxy's routes are configured. The **Resolves to** line shows the f… 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 …d-tools/mcp-tunnels/deploy-compose#optional-use-a-sample-mcp-server), append it as a service: ```bash cat >> docker-compose.yaml <<'EOF' hello-mcp: image: pytho… advisor-tool Claude Developer Platform · in the page agents-and-tools/tool-use/advisor-tool …ol-2026-03-01"], tools=tools, messages=messages, ) # Append the full response content, including any advisor_tool_result blocks messages.append({"role": "assistant", "content": resp… bash-tool Claude Developer Platform · in the page agents-and-tools/tool-use/bash-tool …tput is complete break output.append(line) return "".join(output) def restart(self): self.process.kill() se… browser-use-tool Claude Developer Platform · in the page agents-and-tools/tool-use/browser-use-tool …error"] = True failed = True tool_results.append(result) return tool_results ``` ```typescript TypeScript const HALT_TEXT = "Not executed: an earlier action in… build-a-tool-using-agent Claude Developer Platform · in the page agents-and-tools/tool-use/build-a-tool-using-agent …choice) # live in a quoted heredoc; the growing messages array is appended as # JSON, which YAML accepts as flow syntax. { cat <<'YAML' model: claude-opus-5-5 max_tokens: 1024… code-execution-tool Claude Developer Platform · in the page agents-and-tools/tool-use/code-execution-tool …output_block in content_item.content: file_ids.append(output_block.file_id) return file_ids # Download the created files for file_id in extract_file_ids(response):… computer-use-tool Claude Developer Platform · in the page agents-and-tools/tool-use/computer-use-tool …Add Claude's response to the conversation history messages.append({"role": "assistant", "content": response.content}) # Run the actions Claude requested, in order, and collect th… fine-grained-tool-streaming Claude Developer Platform · in the page agents-and-tools/tool-use/fine-grained-tool-streaming …nsole.Write(inputJson.PartialJson); toolInputs[delta.Index].Append(inputJson.PartialJson); } } Console.WriteLine(); foreach (var accumulatedInput in toolInputs.Values) {… memory-tool Claude Developer Platform · in the page agents-and-tools/tool-use/memory-tool …ing{"1.0K\t/memories"} for path := range store { listing = append(listing, "1.0K\t"+path) } sort.Strings(listing[1:]) return fmt.Sprintf("Here're the files and directories up… overview Claude Developer Platform · in the page agents-and-tools/tool-use/overview …nion for _, block := range response.Content { assistantContent = append(assistantContent, block.ToParam()) } messages = append(messages, anthropic.NewAssistantMessage(assistantContent...),… parallel-tool-use Claude Developer Platform · in the page agents-and-tools/tool-use/parallel-tool-use …else: result = "5:30 PM EST" tool_results.append( {"type": "tool_result", "tool_use_id": tool_use.id, "content": result} ) # Continue conversation with t… server-tools Claude Developer Platform · in the page agents-and-tools/tool-use/server-tools …nue # the turn by re-sending the request with the assistant content appended to messages. curl https://api.anthropic.com/v1/messages \ -H "x-api-key: $ANTHROPIC_API_KEY" \ -H "anthropic-ve… text-editor-tool Claude Developer Platform · in the page agents-and-tools/tool-use/text-editor-tool …(2, limit + 1)\n20: if is_prime(num):\n21: primes.append(num)\n22: return primes\n23: \n24: def main():\n25: \"\"\"Main function to demonstrate prime number generation.\"\"… Log at info level Claude Developer Platform · in the page agents-and-tools/tool-use/tool-runner …ify message history:** If the message contains tool calls, the runner appends the assistant message and the tool results, then continues. If there are no tool calls, the loop exits. * **If you modi… tool-search-tool Claude Developer Platform · in the page agents-and-tools/tool-use/tool-search-tool …x. When Claude discovers a deferred tool through tool search, the API appends a `tool_reference` block inline in the conversation, then expands it into the full tool definition before passing it to Cl… tool-use-with-prompt-caching Claude Developer Platform · in the page agents-and-tools/tool-use/tool-use-with-prompt-caching …ocs/en/agents-and-tools/tool-use/tool-search-tool), the definition is appended inline as a `tool_reference` block in the conversation history. The prefix is untouched, so prompt caching is preserved.… troubleshooting-tool-use Claude Developer Platform · in the page agents-and-tools/tool-use/troubleshooting-tool-use …| Use `defer_loading: true` with tool search to append the tool inline instead of modifying the array head.… Beta Claude Developer Platform · in the page api/beta …d workspace, with the same request body (optionally extended by one appended `assistant` message whose content is the partial text — with any trailing whitespace stripped from the final text blo… Deployment Runs Claude Developer Platform · in the page api/beta/deployment_runs …# Returns - `BetaManagedAgentsDeploymentRun object` A persistent, append-only record of a single deployment execution. Records session creation success or failure — no session lifecycle tracking.… Get Deployment Run Claude Developer Platform · in the page api/beta/deployment_runs/retrieve …# Returns - `BetaManagedAgentsDeploymentRun object` A persistent, append-only record of a single deployment execution. Records session creation success or failure — no session lifecycle tracking.… Deployments Claude Developer Platform · in the page api/beta/deployments …rivileged context for the accompanying turn and all subsequent turns, appended to the session's system context as a `role: "system"` turn rather than replacing the top-level system prompt. At most one… Archive Deployment Claude Developer Platform · in the page api/beta/deployments/archive …rivileged context for the accompanying turn and all subsequent turns, appended to the session's system context as a `role: "system"` turn rather than replacing the top-level system prompt. - `t… Create Deployment Claude Developer Platform · in the page api/beta/deployments/create …rivileged context for the accompanying turn and all subsequent turns, appended to the session's system context as a `role: "system"` turn rather than replacing the top-level system prompt. At most one… List Deployments Claude Developer Platform · in the page api/beta/deployments/list …rivileged context for the accompanying turn and all subsequent turns, appended to the session's system context as a `role: "system"` turn rather than replacing the top-level system prompt. - `t… Pause Deployment Claude Developer Platform · in the page api/beta/deployments/pause …rivileged context for the accompanying turn and all subsequent turns, appended to the session's system context as a `role: "system"` turn rather than replacing the top-level system prompt. - `t… Get Deployment Claude Developer Platform · in the page api/beta/deployments/retrieve …rivileged context for the accompanying turn and all subsequent turns, appended to the session's system context as a `role: "system"` turn rather than replacing the top-level system prompt. - `t… Run Deployment Now Claude Developer Platform · in the page api/beta/deployments/run …# Returns - `BetaManagedAgentsDeploymentRun object` A persistent, append-only record of a single deployment execution. Records session creation success or failure — no session lifecycle tracking.… Unpause Deployment Claude Developer Platform · in the page api/beta/deployments/unpause …rivileged context for the accompanying turn and all subsequent turns, appended to the session's system context as a `role: "system"` turn rather than replacing the top-level system prompt. - `t… Update Deployment Claude Developer Platform · in the page api/beta/deployments/update …rivileged context for the accompanying turn and all subsequent turns, appended to the session's system context as a `role: "system"` turn rather than replacing the top-level system prompt. At most one… Memory Stores Claude Developer Platform · in the page api/beta/memory_stores …tion a `memory_version` records. Every non-no-op mutation to a memory appends exactly one version row with one of these values. - `"created"` The memory was created. The first version in a… Memory Versions Claude Developer Platform · in the page api/beta/memory_stores/memory_versions …tion a `memory_version` records. Every non-no-op mutation to a memory appends exactly one version row with one of these values. - `"created"` The memory was created. The first version in a… List memory versions Claude Developer Platform · in the page api/beta/memory_stores/memory_versions/list …tion a `memory_version` records. Every non-no-op mutation to a memory appends exactly one version row with one of these values. - `"created"` The memory was created. The first version in a… Redact a memory version Claude Developer Platform · in the page api/beta/memory_stores/memory_versions/redact …`memory_version` object: one immutable, attributed row in a memory's append-only history. Every non-no-op mutation to a memory produces a new version. Versions belong to the store (not the individual… Retrieve a memory version Claude Developer Platform · in the page api/beta/memory_stores/memory_versions/retrieve …`memory_version` object: one immutable, attributed row in a memory's append-only history. Every non-no-op mutation to a memory produces a new version. Versions belong to the store (not the individual… Messages Claude Developer Platform · in the page api/beta/messages …d workspace, with the same request body (optionally extended by one appended `assistant` message whose content is the partial text — with any trailing whitespace stripped from the final text blo… Batches Claude Developer Platform · in the page api/beta/messages/batches …rkspace, with the same request body (optionally extended by one appended `assistant` message whose content is the partial text — with any trailing whitespace stripped from the final… Create a Message Batch Claude Developer Platform · in the page api/beta/messages/batches/create …rkspace, with the same request body (optionally extended by one appended `assistant` message whose content is the partial text — with any trailing whitespace stripped from the final… Retrieve Message Batch results Claude Developer Platform · in the page api/beta/messages/batches/results …er render-shaping fields), or with the same body plus one appended `assistant` message whose content is the partial text (with any trailing whitespace stripped from the final t… Count tokens in a Message Claude Developer Platform · in the page api/beta/messages/count_tokens …sult block carries stop_reason='max_tokens', and a truncation note is appended to the advice text the worker model sees (inside the encrypted blob in redacted mode). When set, the server also emits a… Create a Message Claude Developer Platform · in the page api/beta/messages/create …d workspace, with the same request body (optionally extended by one appended `assistant` message whose content is the partial text — with any trailing whitespace stripped from the final text blo… Events Claude Developer Platform · in the page api/beta/sessions/events …n high-risk; it does not execute and a synthetic error tool result is appended. - `type: "deny"` - `reason_code: string` The judgement's grounds in registry-bo… List Events Claude Developer Platform · in the page api/beta/sessions/events/list …n high-risk; it does not execute and a synthetic error tool result is appended. - `type: "deny"` - `reason_code: string` The judgement's grounds in registry-bo… Send Events Claude Developer Platform · in the page api/beta/sessions/events/send …rivileged context for the accompanying turn and all subsequent turns, appended to the session's system context as a `role: "system"` turn rather than replacing the top-level system prompt. At most one… Stream Events Claude Developer Platform · in the page api/beta/sessions/events/stream …n high-risk; it does not execute and a synthetic error tool result is appended. - `type: "deny"` - `reason_code: string` The judgement's grounds in registry-bo… Threads Claude Developer Platform · in the page api/beta/sessions/threads …n high-risk; it does not execute and a synthetic error tool result is appended. - `type: "deny"` - `reason_code: string` The judgement's grounds in registry-bo… Events Claude Developer Platform · in the page api/beta/sessions/threads/events …n high-risk; it does not execute and a synthetic error tool result is appended. - `type: "deny"` - `reason_code: string` The judgement's grounds in registry-bo…