Evidence Atlas · exact surface
Claude Code CLI / local host
Anthropic / Claude Code. This page does not inherit claims from sibling products or surfaces.
ProductClaude CodeAnthropic
- Surface ID
- claude-code-cli
- Type
- cli
- Target
- 2.1.232+ / observed 2026-08-28
- Availability
- ga
- Coverage tier
- A
- Supported
- 22
- Partial
- 3
- Explicit no
- 0
- Unknown
- 24
Full 49-feature grid
Compatibility cells
Y = supported · P = partial · N = explicit unsupported · ? = unknown.
| Feature | Status | Evidence | Conditions and notes | Sources |
|---|---|---|---|---|
| A2A agent/server roleA2A · a2a.server | ?Unknown | none confidence | No defensible evidence established in this research pass. | — |
| A2A client roleA2A · a2a.client | ?Unknown | none confidence | No defensible evidence established in this research pass. | — |
| ACP agent/server roleACP · acp.agent | ?Unknown | none confidence | No defensible evidence established in this research pass. | — |
| ACP client/host roleACP · acp.client | ?Unknown | none confidence | No defensible evidence established in this research pass. | — |
| ACP elicitation/approvalACP · acp.elicitation | ?Unknown | none confidence | No defensible evidence established in this research pass. | — |
| ACP MCP forwardingACP · acp.mcp-forwarding | ?Unknown | none confidence | No defensible evidence established in this research pass. | — |
| ACP session listACP · acp.session-list | ?Unknown | none confidence | No defensible evidence established in this research pass. | — |
| ACP session load/resumeACP · acp.session-load | ?Unknown | none confidence | No defensible evidence established in this research pass. | — |
| ACP stdioACP · acp.transport.stdio | ?Unknown | none confidence | No defensible evidence established in this research pass. | — |
| ACP terminal reverse RPCACP · acp.terminal-reverse-rpc | ?Unknown | none confidence | No defensible evidence established in this research pass. | — |
| Agent Plugins 1.0 coreAgent Plugins · agent-plugins.core | ?Unknown | inferred · low confidence · verified 2026-08-281 assertion | Claude has a broader native plugin format; no explicit Agent Plugins 1.0 conformance claim found. | |
| Agent Plugins failure isolationAgent Plugins · agent-plugins.failure-isolation | ?Unknown | none confidence | No defensible evidence established in this research pass. | — |
| Agent Plugins packaged MCPAgent Plugins · agent-plugins.mcp | ?Unknown | none confidence | No defensible evidence established in this research pass. | — |
| Agent Plugins packaged skillsAgent Plugins · agent-plugins.skills | ?Unknown | none confidence | No defensible evidence established in this research pass. | — |
| Agent Skills coreAgent Skills · agent-skills.core | YSupported | documented · high confidence · verified 2026-08-281 assertion | No additional condition recorded. | |
| Agent Skills scripts/assetsAgent Skills · agent-skills.scripts-assets | YSupported | documented · high confidence · verified 2026-08-281 assertion | No additional condition recorded. | |
| Agent Skills standard pathsAgent Skills · agent-skills.standard-paths | PPartial | documented · high confidence · verified 2026-08-281 assertion | Agent Skills core is supported with Claude-specific locations/extensions; standard .agents path behavior is not the sole discovery mechanism. |
|
| Cloud agentAutomation · automation.cloud-agent | ?Unknown | none confidence | No defensible evidence established in this research pass. | — |
| Headless / CI executionAutomation · automation.headless | ?Unknown | none confidence | No defensible evidence established in this research pass. | — |
| Marketplace or registryDistribution · marketplace-registry | YSupported | documented · high confidence · verified 2026-08-281 assertion | No additional condition recorded. | |
| Organization policy controlsGovernance · governance.org-policy | ?Unknown | none confidence | No defensible evidence established in this research pass. | — |
| AGENTS.mdInstructions · instructions.agents-md | ?Unknown | none confidence | No defensible evidence established in this research pass. | — |
| Native rules/instructionsInstructions · instructions.rules | YSupported | documented · high confidence · verified 2026-08-281 assertion | No additional condition recorded. | |
| MCP 2026-07-28MCP · mcp.revision.2026-07-28 | PPartial | documented+reported · mixed confidence · verified 2026-08-281 assertion | Environment: Claude Code 2.1.232+, direct provider, negotiation enabled · New runtime can negotiate 2026-07-28, but provider/gateway/feature-flag conditions and a reported validation bug limit universal claims. | |
| MCP Apps / interactive UIMCP · mcp.apps | ?Unknown | none confidence | No defensible evidence established in this research pass. | — |
| MCP client roleMCP · mcp.client | YSupported | documented · high confidence · verified 2026-08-281 assertion | No additional condition recorded. |
|
| MCP elicitationMCP · mcp.elicitation | YSupported | documented · high confidence · verified 2026-08-281 assertion | No additional condition recorded. |
|
| MCP legacy SSEMCP · mcp.transport.legacy-sse | YSupported | documented · high confidence · verified 2026-08-281 assertion | No additional condition recorded. |
|
| MCP list_changedMCP · mcp.list-changed | YSupported | documented · high confidence · verified 2026-08-281 assertion | No additional condition recorded. |
|
| MCP OAuthMCP · mcp.auth.oauth | YSupported | documented · high confidence · verified 2026-08-281 assertion | No additional condition recorded. |
|
| MCP promptsMCP · mcp.prompts | YSupported | documented · high confidence · verified 2026-08-281 assertion | No additional condition recorded. |
|
| MCP resourcesMCP · mcp.resources | YSupported | documented · high confidence · verified 2026-08-281 assertion | No additional condition recorded. |
|
| MCP rootsMCP · mcp.roots | YSupported | documented · high confidence · verified 2026-08-281 assertion | No additional condition recorded. |
|
| MCP samplingMCP · mcp.sampling | ?Unknown | none confidence | No defensible evidence established in this research pass. | — |
| MCP server roleMCP · mcp.server | YSupported | documented · high confidence · verified 2026-08-281 assertion | Claude Code can expose an MCP server surface through its documented serve mode. |
|
| MCP stdioMCP · mcp.transport.stdio | YSupported | documented · high confidence · verified 2026-08-281 assertion | No additional condition recorded. |
|
| MCP Streamable HTTPMCP · mcp.transport.streamable-http | YSupported | documented · high confidence · verified 2026-08-281 assertion | No additional condition recorded. |
|
| MCP tasksMCP · mcp.tasks | ?Unknown | none confidence | No defensible evidence established in this research pass. | — |
| MCP toolsMCP · mcp.tools | YSupported | documented · high confidence · verified 2026-08-281 assertion | No additional condition recorded. |
|
| MCP WebSocket extensionMCP · mcp.transport.websocket-extension | YSupported | documented · high confidence · verified 2026-08-281 assertion | Claude-specific WebSocket extension; not MCP core transport. |
|
| Computer/browser useNative extensibility · computer-use | ?Unknown | none confidence | No defensible evidence established in this research pass. | — |
| Custom agentsNative extensibility · custom-agents | YSupported | documented · high confidence · verified 2026-08-281 assertion | No additional condition recorded. | |
| HooksNative extensibility · hooks | YSupported | documented · high confidence · verified 2026-08-281 assertion | No additional condition recorded. | |
| Native plugin systemNative extensibility · plugins.native | YSupported | documented · high confidence · verified 2026-08-281 assertion | No additional condition recorded. | |
| Nested subagentsNative extensibility · subagents.nested | ?Unknown | documented · low confidence · verified 2026-08-281 assertion | No definitive nested-subagent support claim located. |
|
| Subagent MCP accessNative extensibility · subagents.mcp-access | PPartial | documented · high confidence · verified 2026-08-281 assertion | Project/user subagents can use tools, but plugin subagents ignore mcpServers frontmatter. |
|
| Subagent write accessNative extensibility · subagents.write-access | YSupported | documented · high confidence · verified 2026-08-281 assertion | No additional condition recorded. | |
| SubagentsNative extensibility · subagents | YSupported | documented · high confidence · verified 2026-08-281 assertion | No additional condition recorded. | |
| Session handoff/importSessions · session.handoff | ?Unknown | none confidence | No defensible evidence established in this research pass. | — |