441 pages for caching.

Create custom subagents Claude Code CLI · in the page sub-agents …to `5m` or `1h` to choose the [prompt cache lifetime](/docs/en/prompt-caching.md#choose-the-ttl-yourself) for this subagent's requests, at the frontmatter's place in the [cache lifetime precedence](/d… Enterprise deployment overview Claude Code CLI · in the page third-party-integrations …ucture/products-by-region/)</td> </tr> <tr> <td>Prompt caching</td> <td>Enabled by default</td> <td>Enabled by default</td> <td>Enabled by default</td> <td>Enabl… Use Claude Code in VS Code Claude Code CLI · in the page vs-code …mates how much time the conversation's [prompt cache](/docs/en/prompt-caching.md) has left before it expires. It counts down from the cache's five-minute or one-hour [lifetime](/docs/en/prompt-caching… Get started with Claude Code in the cloud Claude Code CLI · in the page web-quickstart …ng the [environment cache](/docs/en/cloud-environments.md#environment-caching). Heavy steps such as pulling large Docker images, syncing full dependency trees, or downloading model weights often push… Week 16 · April 13–17, 2026 Claude Code CLI · in the page whats-new/2026-w16 …exiting with code 2 or returning `{"decision":"block"}``ENABLE_PROMPT_CACHING_1H` opts API key, Amazon Bedrock, Google Cloud's Agent Platform, and Microsoft Foundry users into 1-hour prompt cache TTL`… Week 25 · June 15–19, 2026 Claude Code CLI · in the page whats-new/2026-w25 …ed skill appears as `<dir>:<name>` so both stay availableFixed prompt caching not reading on a custom `ANTHROPIC_BASE_URL` and on Microsoft FoundryFixed Write and Edit producing zero-byte or truncated… Week 35 · August 24–28, 2026 Claude Code CLI · in the page whats-new/2026-w35 …loud's Agent Platform model IDsSet [`promptCacheTtl`](/docs/en/prompt-caching#choose-the-ttl-yourself) to `1h` to keep a one-hour prompt cache on the main conversation when you use an API key or a clo… Orchestrate subagents at scale with dynamic workflows Claude Code CLI · in the page workflows …esumable](#resume-after-a-pause) within the same session. ### Prompt caching in a fan-out Agents in the same run can read each other's [prompt cache](/docs/en/prompt-caching.md#subagents-and-the-cac… Lazy authentication for MCP servers Claude Documentation · in the page connectors/building/lazy-authentication …zation server metadata's `scopes_supported`. ### Allow for discovery caching After you change `scopes_supported` or any other discovery field, allow about five minutes before Claude uses the new val… Supersede older widget instances Claude Documentation · in the page connectors/building/mcp-apps/instance-supersession …nnel scope under a fixed `ui.domain`, a server key that arrives late, caching the key across remounts, and the requests a custom `postMessage` bridge would drop. ### Channel scope and `ui.domain` `B… Changelog Claude Documentation · in the page cowork/changelog …anges. **Cowork** * No user-facing changes. **3P** * Fixed prompt caching not being applied in sessions that use an inference gateway or custom endpoint. **v1.34493.0** 2026-08-20 **General**… Configure a custom OpenTelemetry collector Claude Documentation · in the page office-agents/opentelemetry …or because the conversation was reset) | The add-in requests prompt caching on every call. Cache token attributes are set from the provider's response and omitted when the provider does not return t… Deploy with a bootstrap server Claude Documentation · in the page third-party/claude-desktop/bootstrap …equest, so an unchanged configuration costs your server a `304` (see [Caching and `expiresAt`](#caching-and-expiresat)). Releases before 1.46388.1 re-check every 30 minutes and ignore `configRecheckIn… Write a credential helper Claude Documentation · in the page third-party/claude-desktop/credential-helper …ched from the Dock or Finder rather than a terminal. ## Timeouts and caching The helper's output is cached for `inferenceCredentialHelperTtlSec` seconds (default 3600). Claude Desktop checks the cac… Deploy Claude Desktop on 3P with an LLM gateway Claude Documentation · in the page third-party/claude-desktop/gateway …nferenceModels` explicitly. The gateway should also preserve [prompt caching](https://platform.claude.com/docs/en/build-with-claude/prompt-caching). Cowork and Code sessions send `cache_control` brea… Filesystems Charter Model Context Protocol · in the page community/working-groups/filesystems …concurrency control, and the interaction with change notification and caching. ## Scope ### In Scope * **Specification Work**: One Extensions Track SEP, provisionally titled Filesystem Operations f… Roadmap Model Context Protocol · in the page development/roadmap …retaining the security and lifecycle guarantees of a subprocess. * **Caching**: Transports WG. The most recent protocol revision made strides toward caching, adding `ttlMs` and `cacheScope` to list r… Client Best Practices Model Context Protocol · in the page docs/2024-11-05/develop/clients/client-best-practices …can reason about related capabilities. | ### Interaction with Prompt Caching Most providers cache the prompt prefix, including the `tools` array. Adding or removing tool definitions mid-conversation… Client Best Practices Model Context Protocol · in the page docs/2025-03-26/develop/clients/client-best-practices …can reason about related capabilities. | ### Interaction with Prompt Caching Most providers cache the prompt prefix, including the `tools` array. Adding or removing tool definitions mid-conversation… Client Best Practices Model Context Protocol · in the page docs/2025-06-18/develop/clients/client-best-practices …can reason about related capabilities. | ### Interaction with Prompt Caching Most providers cache the prompt prefix, including the `tools` array. Adding or removing tool definitions mid-conversation… Client Best Practices Model Context Protocol · in the page docs/2025-11-25/develop/clients/client-best-practices …can reason about related capabilities. | ### Interaction with Prompt Caching Most providers cache the prompt prefix, including the `tools` array. Adding or removing tool definitions mid-conversation… Client Best Practices Model Context Protocol · in the page docs/2026-07-28/develop/clients/client-best-practices …rce server so the model can reason about related capabilities. | ### Caching Each list result (such as `tools/list`), as well as each `server/discover` and `resources/read` result, carries `ttlMs` a… Architecture overview Model Context Protocol · in the page docs/2026-07-28/learn/architecture …ters The result is marked `"resultType": "complete"` and carries two caching fields. `ttlMs` is a freshness hint in milliseconds, so this tool list can be cached for five minutes. `cacheScope` indica… Client Best Practices Model Context Protocol · in the page docs/draft/develop/clients/client-best-practices …rce server so the model can reason about related capabilities. | ### Caching Each list result (such as `tools/list`), as well as each `server/discover` and `resources/read` result, carries `ttlMs` a… Architecture overview Model Context Protocol · in the page docs/draft/learn/architecture …ters The result is marked `"resultType": "complete"` and carries two caching fields. `ttlMs` is a freshness hint in milliseconds, so this tool list can be cached for five minutes. `cacheScope` indica… Skills Model Context Protocol · in the page extensions/skills/overview …pagination](/specification/draft/server/utilities/pagination.md) and [caching](/specification/draft/server/utilities/caching.md). **Request:** ```json theme={null} { "jsonrpc": "2.0", "id": 1,… SEP-1577: Sampling With Tools Model Context Protocol · in the page seps/1577--sampling-with-tools …ates Two bits needed here: * Introduce cache awareness * Implicit caching guidelines phrased as SHOULDs * Explicit cache points and TTL semantics [as in the Claude API](https://docs.claude.com/e… SEP-1865: MCP Apps - Interactive User Interfaces for MCP Model Context Protocol · in the page seps/1865-mcp-apps-interactive-user-interfaces-for-mcp …ion of presentation (template) from data (tool results), facilitating caching * Security review of UI resources **Alternatives considered:** * **Embedded resources:** Current MCP-UI approach, where… SEP-2127: MCP Server Cards - HTTP Server Discovery Model Context Protocol · in the page seps/2127-mcp-server-cards …ation. The media types, catalog format, and browser-oriented CORS and caching guidance are specified in [`docs/discovery.md`](https://github.com/modelcontextprotocol/experimental-ext-server-card/blob/… SEP-2549: TTL for List Results Model Context Protocol · in the page seps/2549-TTL-for-list-results …2549) | *** ## Abstract This SEP proposes adding fields to support caching result objects returned by `tools/list`, `prompts/list`, `resources/list`, `resources/read`, and `resources/templates/list… SEP-2567: Sessionless MCP via Explicit State Handles Model Context Protocol · in the page seps/2567-sessionless-mcp …common case. The Python SDK's own design issue for client-side list caching lists "what is the cache key — per-session or per-server-URL?" as an open question,[^py-sdk-cache] and gateway implementer… SEP-2640: Skills Extension Model Context Protocol · in the page seps/2640-skills-extension …er, `skills/list` results additionally carry the base protocol's list-caching attributes ([SEP-2549]). ### Skill Format A skill served over MCP MUST conform to the [Agent Skills specification](https… Key Changes Model Context Protocol · in the page specification/2026-07-28/changelog …ools from `tools/list` in a deterministic order to enable client-side caching and improve LLM prompt cache hit rates. 4. Require standard MCP request headers (`Mcp-Method`, `Mcp-Name`) on Streamable H… Discovery Model Context Protocol · in the page specification/2026-07-28/server/discover …otocol versions, capabilities, and identity. This operation supports [caching](/specification/2026-07-28/server/utilities/caching.md). ```json theme={null} { "jsonrpc": "2.0", "id": "discover-1",… Prompts Model Context Protocol · in the page specification/2026-07-28/server/prompts …ation](/specification/2026-07-28/server/utilities/pagination.md) and [caching](/specification/2026-07-28/server/utilities/caching.md). **Request:** ```json theme={null} { "jsonrpc": "2.0", "id":… Resources Model Context Protocol · in the page specification/2026-07-28/server/resources …ation](/specification/2026-07-28/server/utilities/pagination.md) and [caching](/specification/2026-07-28/server/utilities/caching.md). **Request:** ```json theme={null} { "jsonrpc": "2.0", "id":… Tools Model Context Protocol · in the page specification/2026-07-28/server/tools …ation](/specification/2026-07-28/server/utilities/pagination.md) and [caching](/specification/2026-07-28/server/utilities/caching.md). **Request:** ```json theme={null} { "jsonrpc": "2.0", "id":… Discovery Model Context Protocol · in the page specification/draft/server/discover …otocol versions, capabilities, and identity. This operation supports [caching](/specification/draft/server/utilities/caching.md). ```json theme={null} { "jsonrpc": "2.0", "id": "discover-1", "r… Prompts Model Context Protocol · in the page specification/draft/server/prompts …pagination](/specification/draft/server/utilities/pagination.md) and [caching](/specification/draft/server/utilities/caching.md). **Request:** ```json theme={null} { "jsonrpc": "2.0", "id": 1,… Resources Model Context Protocol · in the page specification/draft/server/resources …pagination](/specification/draft/server/utilities/pagination.md) and [caching](/specification/draft/server/utilities/caching.md). **Request:** ```json theme={null} { "jsonrpc": "2.0", "id": 1,… Tools Model Context Protocol · in the page specification/draft/server/tools …pagination](/specification/draft/server/utilities/pagination.md) and [caching](/specification/draft/server/utilities/caching.md). **Request:** ```json theme={null} { "jsonrpc": "2.0", "id": 1,…