198 pages for compatibility.

overview Claude Developer Platform · in the page release-notes/overview …ewer, and Claude Sonnet 4.5 and newer; see the code execution tool's [Compatibility](https://platform.claude.com/docs/en/agents-and-tools/tool-use/code-execution-tool#compatibility) section. ### June… Use Claude Code features in the SDK Claude Code CLI · in the page agent-sdk/claude-code-features …`. See the [hooks guide](/docs/en/agent-sdk/hooks) for the full event compatibility table. For full details on programmatic hooks, see [Control execution with hooks](/docs/en/agent-sdk/hooks). For fi… Agent SDK reference - Python Claude Code CLI · in the page agent-sdk/python …t): type: NotRequired[Literal["stdio"]] # Optional for backwards compatibility command: str args: NotRequired[list[str]] env: NotRequired[dict[str, str]] ``` #### `McpSSEServerConfig… Securely deploying AI agents Claude Code CLI · in the page agent-sdk/secure-deployment …in userspace before they reach the host kernel, implementing its own compatibility layer that handles most syscalls without involving the real kernel. If an agent runs malicious code (perhaps due to… Agent SDK reference - TypeScript Claude Code CLI · in the page agent-sdk/typescript …essage) init message currently lists this tool as `Task` for backward compatibility. > [!NOTE] > > The `mode` field is deprecated and ignored on Claude Code v2.1.212 or later. A subagent runs in eith… TypeScript SDK V2 session API (removed) Claude Code CLI · in the page agent-sdk/typescript-v2-preview …rce cleanup. If you're using an older TypeScript version or encounter compatibility issues, use manual cleanup instead. The examples below show only the cleanup pattern and don't send any messages, s… Auto mode classifier request charges Claude Code CLI · in the page auto-mode-classifier-billing …`safeguard_results` field or rewriting tool-use IDs, as the [gateway compatibility guide](/docs/en/llm-gateway-protocol#feature-pass-through) describes. A gateway that passes traffic through this way… Claude apps gateway for Amazon Bedrock, Claude Platform on AWS, Google Cloud, and Microsoft Foundry Claude Code CLI · in the page claude-apps-gateway …llm-gateway) covers configuring Claude Code against it. The [gateway compatibility guide](/docs/en/llm-gateway-protocol) documents what Claude Code expects from any gateway: the endpoints it calls, t… Explore the .claude directory Claude Code CLI · in the page claude-directory …nt`, `background`, `hooks`, `paths`, `shell`, `metadata`, `license`, `compatibility` | [Skill frontmatter](/docs/en/skills#frontmatter-reference) | | `commands/*.md` | The skill fields except `name` a… Configure cloud environments Claude Code CLI · in the page cloud-environments …, ripgrep, tmux, vim, nano | ¹ Bun is installed but has known [proxy compatibility issues](#install-dependencies-with-a-sessionstart-hook) for package fetching. To get the versions of most of the to… Common workflows Claude Code CLI · in the page common-workflows …its of the modern approach > * Request that changes maintain backward compatibility when needed > * Do refactoring in small, testable increments *** ### Work with tests Suppose you need to add test… Environment variables Claude Code CLI · in the page env-vars …o omit the `thinking` parameter from API requests entirely. This is a compatibility option for proxies and gateways that reject the parameter. On models that think by default, omitting the parameter m… Error reference Claude Code CLI · in the page errors …-review) says which gateway behavior causes denials, and the [gateway compatibility guide](/docs/en/llm-gateway-protocol#feature-pass-through) lists what to pass through unchanged. * Set `CLAUDE_CODE_… Run Claude Code through a gateway Claude Code CLI · in the page gateways …s its own setup guide; a gateway your organization already runs has a compatibility guide to follow and an admin rollout checklist. * [Claude apps gateway](/docs/en/claude-apps-gateway) to deploy Ant… Other LLM gateways Claude Code CLI · in the page llm-gateway …ay-rollout) > * If you're configuring a gateway product: the [gateway compatibility guide](/docs/en/llm-gateway-protocol) Any gateway that exposes a [supported API format](/docs/en/llm-gateway-protoc… Connect Claude Code to an LLM gateway Claude Code CLI · in the page llm-gateway-connect …ollout) > * For what Claude Code sends to a gateway, see the [gateway compatibility guide](/docs/en/llm-gateway-protocol) ## Check for an existing configuration Administrators can distribute the gat… Roll out an LLM gateway for your organization Claude Code CLI · in the page llm-gateway-rollout …Claude Code sends to a gateway and what to forward, see the [gateway compatibility guide](/docs/en/llm-gateway-protocol) ## Prerequisites To complete the rollout, you'll need: * A gateway deployed… Verify session identity in self-hosted environments Claude Code CLI · in the page self-hosted-environments-identity …t_email`, `organization_uuid`, and `account_uuid` claims are backward-compatibility duplicates that may be removed. Sessions your organization's service identity creates, including Claude Tag channel… Extend Claude with skills Claude Code CLI · in the page skills …aude Code ignores case, spacing, and invisible characters, and treats compatibility forms such as fullwidth letters and dash variants as their plain equivalents. For example, a synced skill named `Com… Troubleshoot installation and login Claude Code CLI · in the page troubleshoot-install …not found`, `dyld: cannot load`, or `Abort trap` on macOS | [Binary incompatibility](#dyld-cannot-load-on-macos) | | `claude update` hangs after `Checking for updates`, or `claude doctor` hangs with n… Lazy authentication for MCP servers Claude Documentation · in the page connectors/building/lazy-authentication …localhost`, but Claude Code declares it in its CIMD, so accept it for compatibility ### Ask for more scope with 403 When a signed-in user calls a tool that needs a scope their token lacks, your serv… Build a desktop extension with MCPB Claude Documentation · in the page connectors/building/mcpb …esktop on macOS and Windows, so users need no separate runtime * Best compatibility and reliability with Claude Desktop * Extensive MCP SDK support ### Platform support Claude Desktop runs on macOS… Connectors directory Claude Documentation · in the page connectors/directory …n). **2. Meet the standards** Ensure your server meets security and compatibility standards. **3. Submit in the developer portal** Submit through the developer portal at [claude.ai/directory/manag… Connector verification Claude Documentation · in the page connectors/verification …ed Anthropic has tested a Verified connector's tools for quality and compatibility, and it met the [Software Directory Policy](https://support.claude.com/en/articles/13145358-anthropic-software-direc… Performance and limits Claude Documentation · in the page office-agents/performance …Office Telemetry Dashboard](https://learn.microsoft.com/en-us/office/compatibility/deploy-telemetry-dashboard)”. *Microsoft Learn*. “By default, data collection is disabled in Office.” The page gives… Group Charter Template Model Context Protocol · in the page community/charter-template …d cloud deployments—while maintaining protocol coherence and backward compatibility. **Interest Group:** > The Enterprise IG explores the challenges of deploying MCP in enterprise environments, gath… Contributor Ladder Model Context Protocol · in the page community/contributor-ladder …idelines) authorship or co-authorship, protocol design participation, compatibility analysis. **Documentation.** User guides and tutorials, API documentation, architecture documentation, keeping cont… Enterprise-Managed Authorization Charter Model Context Protocol · in the page community/interest-groups/enterprise-managed-authorization …d to end — this group exists to gather deployment experience, surface compatibility gaps between independent implementations, and feed validated problems back to the [Authorization IG](/community/inte… SDK Tiering System Model Context Protocol · in the page community/sdk-tiers …rns with documented breaking change policies, so users can understand compatibility expectations when upgrading. **Roadmap** outlines concrete steps and work items that track implementation of requir… SEP Guidelines Model Context Protocol · in the page community/sep-guidelines …sus and address objections raised during discussion. ### 6. Backward Compatibility All SEPs introducing backward incompatibilities must describe these incompatibilities, their severity, and how to d… Transports Charter Model Context Protocol · in the page community/working-groups/transports …adata, cancellation and termination, connection lifecycle, backward compatibility, and the behavior of existing and future MCP transports. The current specification's [transport overview](/speci… Architecture overview Model Context Protocol · in the page docs/2024-11-05/learn/architecture …s provide identification and versioning information for debugging and compatibility purposes. In this example, the capability negotiation demonstrates how MCP primitives are declared: **Client Capab… Versioning Model Context Protocol · in the page docs/2024-11-05/learn/versioning …the > protocol is updated, as long as the changes maintain backwards compatibility. This allows > for incremental improvements while preserving interoperability. ## Revisions Revisions may be marke… Debugging Model Context Protocol · in the page docs/2024-11-05/tools/debugging …[Inspector](/docs/2024-11-05/tools/inspector) 4. Verify [protocol compatibility](/specification/2024-11-05/basic/lifecycle#version-negotiation) 5. Check [capability negotiation](/specification/… Security Best Practices Model Context Protocol · in the page docs/2024-11-05/tutorials/security/security_best_practices …can use the token to access other connected services. * **Future Compatibility Risk** * Even if an MCP Server starts as a "pure proxy" today, it might need to add security controls later. S… Architecture overview Model Context Protocol · in the page docs/2025-03-26/learn/architecture …s provide identification and versioning information for debugging and compatibility purposes. In this example, the capability negotiation demonstrates how MCP primitives are declared: **Client Capab… Versioning Model Context Protocol · in the page docs/2025-03-26/learn/versioning …the > protocol is updated, as long as the changes maintain backwards compatibility. This allows > for incremental improvements while preserving interoperability. ## Revisions Revisions may be marke… Debugging Model Context Protocol · in the page docs/2025-03-26/tools/debugging …[Inspector](/docs/2025-03-26/tools/inspector) 4. Verify [protocol compatibility](/specification/2025-03-26/basic/lifecycle#version-negotiation) 5. Check [capability negotiation](/specification/… Security Best Practices Model Context Protocol · in the page docs/2025-03-26/tutorials/security/security_best_practices …can use the token to access other connected services. * **Future Compatibility Risk** * Even if an MCP Server starts as a "pure proxy" today, it might need to add security controls later. S… Architecture overview Model Context Protocol · in the page docs/2025-06-18/learn/architecture …s provide identification and versioning information for debugging and compatibility purposes. In this example, the capability negotiation demonstrates how MCP primitives are declared: **Client Capab… Versioning Model Context Protocol · in the page docs/2025-06-18/learn/versioning …the > protocol is updated, as long as the changes maintain backwards compatibility. This allows > for incremental improvements while preserving interoperability. ## Revisions Revisions may be marke… Debugging Model Context Protocol · in the page docs/2025-06-18/tools/debugging …[Inspector](/docs/2025-06-18/tools/inspector) 4. Verify [protocol compatibility](/specification/2025-06-18/basic/lifecycle#version-negotiation) 5. Check [capability negotiation](/specification/… Security Best Practices Model Context Protocol · in the page docs/2025-06-18/tutorials/security/security_best_practices …can use the token to access other connected services. * **Future Compatibility Risk** * Even if an MCP Server starts as a "pure proxy" today, it might need to add security controls later. S… Architecture overview Model Context Protocol · in the page docs/2025-11-25/learn/architecture …s provide identification and versioning information for debugging and compatibility purposes. In this example, the capability negotiation demonstrates how MCP primitives are declared: **Client Capab… Versioning Model Context Protocol · in the page docs/2025-11-25/learn/versioning …the > protocol is updated, as long as the changes maintain backwards compatibility. This allows > for incremental improvements while preserving interoperability. ## Revisions Revisions may be marke… Debugging Model Context Protocol · in the page docs/2025-11-25/tools/debugging …[Inspector](/docs/2025-11-25/tools/inspector) 4. Verify [protocol compatibility](/specification/2025-11-25/basic/lifecycle#version-negotiation) 5. Check [capability negotiation](/specification/… Security Best Practices Model Context Protocol · in the page docs/2025-11-25/tutorials/security/security_best_practices …can use the token to access other connected services. * **Future Compatibility Risk** * Even if an MCP Server starts as a "pure proxy" today, it might need to add security controls later. S… Architecture overview Model Context Protocol · in the page docs/2026-07-28/learn/architecture …` provide identification and versioning information for debugging and compatibility purposes. In this example, the exchange demonstrates how MCP capabilities are declared: **Client Capabilities**:… Versioning Model Context Protocol · in the page docs/2026-07-28/learn/versioning …the > protocol is updated, as long as the changes maintain backwards compatibility. This allows > for incremental improvements while preserving interoperability. ## Revisions Revisions may be marke… Debugging Model Context Protocol · in the page docs/2026-07-28/tools/debugging …[Inspector](/docs/2026-07-28/tools/inspector) 4. Verify [protocol compatibility](/docs/2026-07-28/learn/versioning#negotiation): call [`server/discover`](/specification/2026-07-28/server/discov…