50 pages for surface.

Or, for the model with the same capabilities and no access approval requirement: Claude Developer Platform · in the page about-claude/models/migration-guide …Claude Sonnet 5 Claude Opus 5 and Claude Sonnet 5 share the same API surface: both run with [adaptive thinking](https://platform.claude.com/docs/en/build-with-claude/thinking) on by default, both def… optimizing-for-cost-and-intelligence Claude Developer Platform · in the page about-claude/models/optimizing-for-cost-and-intelligence …the house style. Claude Opus 5 at its default effort ran on the same surface and subset, three runs, on August 28, 2026: 68.8% on the raw 50 tasks, 70.8% on the 33-task basis, and 71.1% on the 21-tas… claude-api-skill Claude Developer Platform · in the page agents-and-tools/agent-skills/claude-api-skill …to-date reference material for building applications on two Anthropic surfaces: * **Messages API:** The primary surface for single requests, streaming chat, tool use, batch processing, prompt caching… enterprise Claude Developer Platform · in the page agents-and-tools/agent-skills/enterprise …ned commits in your Skill repository to ensure provenance. ### Cross-surface considerations <Warning> Custom Skills do not sync across surfaces. Skills uploaded to the API are not available on cla… PDF Processing Claude Developer Platform · in the page agents-and-tools/agent-skills/overview …imitations as the Claude API in the following subsections. ### Cross-surface availability **Custom Skills do not sync across surfaces**. Skills uploaded to one surface are not automatically availabl… mcp-connector Claude Developer Platform · in the page agents-and-tools/mcp-connector …gents-and-tools/tool-use/tool-search-tool) so only relevant tools are surfaced per query. ## Authentication For MCP servers that require OAuth authentication, you'll need to obtain an access token.… reference Claude Developer Platform · in the page agents-and-tools/mcp-tunnels/reference …and response schemas, and examples. <Note> The previous Admin API surface at `/v1/organizations/tunnels` (beta header `mcp-tunnels-2026-05-19`, scope `org:manage_tunnels`) continues to work during… advisor-tool Claude Developer Platform · in the page agents-and-tools/tool-use/advisor-tool …inting one way and the advisor points another: don't silently switch. Surface the conflict in one more advisor call — "I found X, you suggest Y, which constraint breaks the tie?" The advisor saw your… browser-use-tool Claude Developer Platform · in the page agents-and-tools/tool-use/browser-use-tool …cribe.** Canvas-rendered interfaces, embedded video or remote-desktop surfaces, heavily virtualized lists, and elements inside cross-origin iframes often have no useful node, so Claude works from `scr… define-tools Claude Developer Platform · in the page agents-and-tools/tool-use/define-tools …wer, more capable tools reduce selection ambiguity and make your tool surface easier for Claude to navigate. * **Use meaningful namespacing in tool names.** When your tools span multiple services or… memory-tool Claude Developer Platform · in the page agents-and-tools/tool-use/memory-tool …entation, `BetaLocalFilesystemMemoryTool`. The helper and tool-runner surfaces live in each SDK's beta namespace even though the memory tool itself doesn't require a beta header. The Go and Ruby SDKs… tool-combinations Claude Developer Platform · in the page agents-and-tools/tool-use/tool-combinations …search, then execute, then optionally search again if the first pass surfaced a gap. Code execution runs server-side, so there's no client-side sandbox to manage. ## Coding agent: text\_editor + bas… tool-reference Claude Developer Platform · in the page agents-and-tools/tool-use/tool-reference …s-and-tools/tool-use/tool-search-tool) that isn't itself deferred can surface the toolset, so declare one in the same request. Don't put `cache_control` on a toolset entry whose members defer; set the… Beta Claude Developer Platform · in the page api/beta …questToolAdditionBlock object` Mid-conversation directive to surface a declared tool. `tool` references a tool (or MCP toolset) by name from the request's `tools`; it is offe… Messages Claude Developer Platform · in the page api/beta/messages …questToolAdditionBlock object` Mid-conversation directive to surface a declared tool. `tool` references a tool (or MCP toolset) by name from the request's `tools`; it is offe… Batches Claude Developer Platform · in the page api/beta/messages/batches …tToolAdditionBlock object` Mid-conversation directive to surface a declared tool. `tool` references a tool (or MCP toolset) by name from the request's `tools`; it… Create a Message Batch Claude Developer Platform · in the page api/beta/messages/batches/create …tToolAdditionBlock object` Mid-conversation directive to surface a declared tool. `tool` references a tool (or MCP toolset) by name from the request's `tools`; it… Count tokens in a Message Claude Developer Platform · in the page api/beta/messages/count_tokens …questToolAdditionBlock object` Mid-conversation directive to surface a declared tool. `tool` references a tool (or MCP toolset) by name from the request's `tools`; it is offe… Create a Message Claude Developer Platform · in the page api/beta/messages/create …questToolAdditionBlock object` Mid-conversation directive to surface a declared tool. `tool` references a tool (or MCP toolset) by name from the request's `tools`; it is offe… Organization Claude Developer Platform · in the page api/beta/organization …a family of models (listed in `models`); other values apply to an API-surface category and have `models` set to `null`. Always equal to `group.type`. - `"batch"` - `"files"` - `"model_g… Analytics Claude Developer Platform · in the page api/beta/organization/analytics …rray of "chat" or "claude-tag" or "claude_code" or 4 more` Product surfaces to include. Defaults to all products. Use `group_by[]=product` to break out per-product values. maxItems: 100 - `"c… Artifacts Claude Developer Platform · in the page api/beta/organization/analytics/artifacts …rue` or `false`; `product` is `chat`, `claude_code`, or `cowork` (the surfaces that create artifacts); `rbac_group_id` takes the tagged id (`rbac_group_...`, as emitted in responses and by the spend-l… Get Artifact Activity Claude Developer Platform · in the page api/beta/organization/analytics/artifacts/list …rue` or `false`; `product` is `chat`, `claude_code`, or `cowork` (the surfaces that create artifacts); `rbac_group_id` takes the tagged id (`rbac_group_...`, as emitted in responses and by the spend-l… Chat Projects Claude Developer Platform · in the page api/beta/organization/analytics/chat_projects …he canonical Cost & Usage product naming; an `office_agent` row's per-surface breakdown is in its `office_metrics`). On `/plugins` only `cowork` and `claude_code` occur (the only surfaces with plugin… Get Chat Project Usage Claude Developer Platform · in the page api/beta/organization/analytics/chat_projects/list …he canonical Cost & Usage product naming; an `office_agent` row's per-surface breakdown is in its `office_metrics`). On `/plugins` only `cowork` and `claude_code` occur (the only surfaces with plugin… Connectors Claude Developer Platform · in the page api/beta/organization/analytics/connectors …p_by[]` to break usage out per member, per RBAC group, or per product surface, and `filter[]` to scope results; the parameter descriptions list the supported dimensions. Available to organizations on… Get Connector Usage Claude Developer Platform · in the page api/beta/organization/analytics/connectors/list …p_by[]` to break usage out per member, per RBAC group, or per product surface, and `filter[]` to scope results; the parameter descriptions list the supported dimensions. Available to organizations on… Cost Claude Developer Platform · in the page api/beta/organization/analytics/cost …rray of "chat" or "claude-tag" or "claude_code" or 4 more` Product surfaces to include. Defaults to all products. Use `group_by[]=product` to break out per-product values. maxItems: 100 - `"c… Get Cost Over Time Claude Developer Platform · in the page api/beta/organization/analytics/cost/list …rray of "chat" or "claude-tag" or "claude_code" or 4 more` Product surfaces to include. Defaults to all products. Use `group_by[]=product` to break out per-product values. maxItems: 100 - `"c… Get Per-User Cost Claude Developer Platform · in the page api/beta/organization/analytics/cost/list_by_user …rray of "chat" or "claude-tag" or "claude_code" or 4 more` Product surfaces to include. Defaults to all products. maxItems: 100 - `"chat"` - `"claude-tag"` - `"claude_code"` - `"clau… Plugins Claude Developer Platform · in the page api/beta/organization/analytics/plugins …regate bucket, not a plugin: it collects plugin activity, from either surface, for which the reporting client did not provide a plugin name — so an organization's own plugins can contribute both to th… Get Plugin Usage Claude Developer Platform · in the page api/beta/organization/analytics/plugins/list …regate bucket, not a plugin: it collects plugin activity, from either surface, for which the reporting client did not provide a plugin name — so an organization's own plugins can contribute both to th… Skills Claude Developer Platform · in the page api/beta/organization/analytics/skills …p_by[]` to break usage out per member, per RBAC group, or per product surface, and `filter[]` to scope results; the parameter descriptions list the supported dimensions. Available to organizations on… Get Skill Usage Claude Developer Platform · in the page api/beta/organization/analytics/skills/list …p_by[]` to break usage out per member, per RBAC group, or per product surface, and `filter[]` to scope results; the parameter descriptions list the supported dimensions. Available to organizations on… Usage Claude Developer Platform · in the page api/beta/organization/analytics/usage …rray of "chat" or "claude-tag" or "claude_code" or 4 more` Product surfaces to include. Defaults to all products. Use `group_by[]=product` to break out per-product values. maxItems: 100 - `"c… Get Token Usage Over Time Claude Developer Platform · in the page api/beta/organization/analytics/usage/list …rray of "chat" or "claude-tag" or "claude_code" or 4 more` Product surfaces to include. Defaults to all products. Use `group_by[]=product` to break out per-product values. maxItems: 100 - `"c… Get Per-User Token Usage Claude Developer Platform · in the page api/beta/organization/analytics/usage/list_by_user …rray of "chat" or "claude-tag" or "claude_code" or 4 more` Product surfaces to include. Defaults to all products. maxItems: 100 - `"chat"` - `"claude-tag"` - `"claude_code"` - `"clau… Rate Limits Claude Developer Platform · in the page api/beta/organization/rate_limits …corresponds to one rate-limit group (either a model family or an API-surface category such as the Files API or Message Batches) and contains the set of limiter values that apply to it. When `limit`… List Organization Rate Limits Claude Developer Platform · in the page api/beta/organization/rate_limits/list …corresponds to one rate-limit group (either a model family or an API-surface category such as the Files API or Message Batches) and contains the set of limiter values that apply to it. When `limit`… Workspaces Claude Developer Platform · in the page api/beta/organization/workspaces …a family of models (listed in `models`); other values apply to an API-surface category and have `models` set to `null`. Always equal to `group.type`. - `"batch"` - `"files"` - `"model_g… Rate Limits Claude Developer Platform · in the page api/beta/organization/workspaces/rate_limits …a family of models (listed in `models`); other values apply to an API-surface category and have `models` set to `null`. Always equal to `group.type`. - `"batch"` - `"files"` - `"model_g… List Workspace Rate Limits Claude Developer Platform · in the page api/beta/organization/workspaces/rate_limits/list …a family of models (listed in `models`); other values apply to an API-surface category and have `models` set to `null`. Always equal to `group.type`. - `"batch"` - `"files"` - `"model_g… Events Claude Developer Platform · in the page api/beta/sessions/events …When set, this event was cross-posted from a subagent's thread to surface its custom tool use on the primary thread's stream. Empty on the thread's own events. Informational only: the server route… List Events Claude Developer Platform · in the page api/beta/sessions/events/list …When set, this event was cross-posted from a subagent's thread to surface its custom tool use on the primary thread's stream. Empty on the thread's own events. Informational only: the server route… Stream Events Claude Developer Platform · in the page api/beta/sessions/events/stream …When set, this event was cross-posted from a subagent's thread to surface its custom tool use on the primary thread's stream. Empty on the thread's own events. Informational only: the server route… Threads Claude Developer Platform · in the page api/beta/sessions/threads …this thread spent in running status. Equal to `stats.active_seconds`; surfaced here so a thread's usage carries every quantity its cost is priced on. format: double - `cache_creation: opti… Archive Session Thread Claude Developer Platform · in the page api/beta/sessions/threads/archive …this thread spent in running status. Equal to `stats.active_seconds`; surfaced here so a thread's usage carries every quantity its cost is priced on. format: double - `cache_creation: opti… Events Claude Developer Platform · in the page api/beta/sessions/threads/events …When set, this event was cross-posted from a subagent's thread to surface its custom tool use on the primary thread's stream. Empty on the thread's own events. Informational only: the server route… List Session Thread Events Claude Developer Platform · in the page api/beta/sessions/threads/events/list …When set, this event was cross-posted from a subagent's thread to surface its custom tool use on the primary thread's stream. Empty on the thread's own events. Informational only: the server route… Stream Session Thread Events Claude Developer Platform · in the page api/beta/sessions/threads/events/stream …When set, this event was cross-posted from a subagent's thread to surface its custom tool use on the primary thread's stream. Empty on the thread's own events. Informational only: the server route…