{ "schemaVersion": 1, "generatedAt": "2026-10-10T19:18:17.445Z", "clients": [ { "id": "claude-code", "name": "Claude Code", "vendor": "Anthropic" } ], "features": [ { "id": "prompts.get", "title": "Client lists prompts and gets one with an argument" }, { "id": "resources.read", "title": "Client lists resources and reads one" }, { "id": "tools.call", "title": "Client lists tools and calls one with arguments" } ], "cases": [ { "id": "prompts.get.basic", "title": "Client lists prompts and gets one with an argument", "feature": "prompts.get", "specRevisions": [ "2025-11-25", "2026-07-28" ], "mode": "automated", "hash": "71929438ab28a581cf36bb5436ed17b23c8d4e2510e611335af66c306b1be25d", "definition": "id: prompts.get.basic\ntitle: Client lists prompts and gets one with an argument\nfeature: prompts.get\nspecRevisions: [2025-11-25, 2026-07-28]\nmode: automated\ndrive:\n claude-code:\n # Claude Code exposes MCP prompts as slash commands: /mcp____ \n prompt: /mcp__lab__lab_greeting {{nonce}}\nmanual:\n instructions: >-\n Invoke the lab_greeting prompt from the lab server with name \"{{nonce}}\".\n Check whether the reply contains PROMPT-OK-{{marker}}.\nexpect:\n - id: listed\n kind: request\n description: client discovered the prompt via prompts/list\n method: prompts/list\n - id: got\n kind: request\n description: client fetched lab_greeting with the run's nonce as its argument\n method: prompts/get\n match:\n params.name: lab_greeting\n params.arguments.name: \"{{nonce}}\"\n - id: prompt-reached-model\n kind: output\n description: the prompt's messages were sent to the model\n contains: PROMPT-OK-{{marker}}\n" }, { "id": "resources.read.basic", "title": "Client lists resources and reads one", "feature": "resources.read", "specRevisions": [ "2025-11-25", "2026-07-28" ], "mode": "automated", "hash": "51c65d23517bb417570c975b5c5bb9e877a7b5722d920b221df216c6cfce710e", "definition": "id: resources.read.basic\ntitle: Client lists resources and reads one\nfeature: resources.read\nspecRevisions: [2025-11-25, 2026-07-28]\nmode: automated\ndrive:\n claude-code:\n prompt: >-\n Read the MCP resource lab://fixtures/hello from the lab server.\n Then reply with its exact text content and nothing else. Run id: {{nonce}}.\n allowedTools: [ListMcpResourcesTool, ReadMcpResourceTool]\nmanual:\n instructions: >-\n Attach or read the resource lab://fixtures/hello from the lab server.\n Check whether the reply contains RESOURCE-OK-{{marker}}.\nexpect:\n - id: listed\n kind: request\n description: client discovered resources via resources/list\n method: resources/list\n - id: read\n kind: request\n description: client read lab://fixtures/hello\n method: resources/read\n match:\n params.uri: lab://fixtures/hello\n - id: content-reached-model\n kind: output\n description: the resource content was passed to the model\n contains: RESOURCE-OK-{{marker}}\n" }, { "id": "tools.call.basic", "title": "Client lists tools and calls one with arguments", "feature": "tools.call", "specRevisions": [ "2025-11-25", "2026-07-28" ], "mode": "automated", "hash": "45f8134078c93d00272b0c760c2e3c5860b49fbe266d444146fa7a6b5e72ffbd", "definition": "id: tools.call.basic\ntitle: Client lists tools and calls one with arguments\nfeature: tools.call\nspecRevisions: [2025-11-25, 2026-07-28]\nmode: automated\ndrive:\n claude-code:\n prompt: >-\n Use the lab_echo tool from the lab MCP server with token \"{{nonce}}\".\n Then reply with the tool's exact output and nothing else.\n allowedTools: [mcp__lab__lab_echo]\nmanual:\n instructions: >-\n Ask the client to call the lab_echo tool with token \"{{nonce}}\" and show its output.\n Check whether the reply contains TOOL-OK-{{marker}}.\nexpect:\n - id: listed\n kind: request\n description: client discovered the tool via tools/list\n method: tools/list\n - id: called\n kind: request\n description: client called lab_echo with the run's nonce\n method: tools/call\n match:\n params.name: lab_echo\n params.arguments.token: \"{{nonce}}\"\n - id: result-reached-model\n kind: output\n description: the tool result was passed back to the model\n contains: TOOL-OK-{{marker}}\n" } ], "results": [ { "slug": "claude-code-2-1-296-tools-call-basic-20261010-3adff6", "runId": "2026-10-10T18-29-45-727Z-3adff6", "clientId": "claude-code", "clientVersion": "2.1.296", "caseId": "tools.call.basic", "caseHash": "45f8134078c93d00272b0c760c2e3c5860b49fbe266d444146fa7a6b5e72ffbd", "feature": "tools.call", "specRevisions": [ "2025-11-25", "2026-07-28" ], "status": "supported", "reason": "all expectations observed", "observedAt": "2026-10-10T18:29:54.147Z", "mode": "automated", "transport": "stdio", "era": "modern", "protocolVersion": "2026-07-28", "labCommit": null, "os": "win32", "nodeVersion": "v24.18.0", "outcomes": [ { "id": "listed", "kind": "request", "description": "client discovered the tool via tools/list", "met": true }, { "id": "called", "kind": "request", "description": "client called lab_echo with the run's nonce", "met": true }, { "id": "result-reached-model", "kind": "output", "description": "the tool result was passed back to the model", "met": true } ], "wire": [ { "seq": 0, "dir": "in", "method": "server/discover", "payload": { "jsonrpc": "2.0", "id": "server-discover-probe-1", "method": "server/discover", "params": { "_meta": { "io.modelcontextprotocol/protocolVersion": "2026-07-28", "io.modelcontextprotocol/clientInfo": { "name": "claude-code", "title": "Claude Code", "version": "2.1.296", "description": "Anthropic's agentic coding tool", "websiteUrl": "https://claude.com/claude-code" }, "io.modelcontextprotocol/clientCapabilities": { "roots": { "listChanged": true }, "elicitation": { "form": {}, "url": {} } } } } } }, { "seq": 1, "dir": "out", "method": null, "payload": { "result": { "supportedVersions": [ "2026-07-28" ], "capabilities": { "tools": { "listChanged": true }, "prompts": { "listChanged": true }, "resources": { "listChanged": true } }, "resultType": "complete", "ttlMs": 0, "cacheScope": "private", "_meta": { "io.modelcontextprotocol/serverInfo": { "name": "abw-mcp-lab", "version": "0.1.0" } } }, "jsonrpc": "2.0", "id": "server-discover-probe-1" } }, { "seq": 9, "dir": "in", "method": "tools/list", "payload": { "jsonrpc": "2.0", "id": 3, "method": "tools/list", "params": { "_meta": { "io.modelcontextprotocol/protocolVersion": "2026-07-28", "io.modelcontextprotocol/clientInfo": { "name": "claude-code", "title": "Claude Code", "version": "2.1.296", "description": "Anthropic's agentic coding tool", "websiteUrl": "https://claude.com/claude-code" }, "io.modelcontextprotocol/clientCapabilities": { "roots": { "listChanged": true }, "elicitation": { "form": {}, "url": {} } } } } } }, { "seq": 11, "dir": "out", "method": null, "payload": { "result": { "tools": [ { "name": "lab_echo", "description": "MCP lab fixture: echoes a token back with an acknowledgement.", "inputSchema": { "type": "object", "$schema": "https://json-schema.org/draft/2020-12/schema", "properties": { "token": { "type": "string", "description": "Token to echo" } }, "required": [ "token" ] } } ], "resultType": "complete", "ttlMs": 0, "cacheScope": "private", "_meta": { "io.modelcontextprotocol/serverInfo": { "name": "abw-mcp-lab", "version": "0.1.0" } } }, "jsonrpc": "2.0", "id": 3 } }, { "seq": 12, "dir": "in", "method": "tools/call", "payload": { "jsonrpc": "2.0", "id": 4, "method": "tools/call", "params": { "_meta": { "progressToken": 4, "io.modelcontextprotocol/protocolVersion": "2026-07-28", "io.modelcontextprotocol/clientInfo": { "name": "claude-code", "title": "Claude Code", "version": "2.1.296", "description": "Anthropic's agentic coding tool", "websiteUrl": "https://claude.com/claude-code" }, "io.modelcontextprotocol/clientCapabilities": { "roots": { "listChanged": true }, "elicitation": { "form": {}, "url": {} } }, "claudecode/toolUseId": "toolu_01BsqMKwVtetxTdexCC9gybX" }, "name": "lab_echo", "arguments": { "token": "nb5324d184408256a" } } } }, { "seq": 13, "dir": "out", "method": null, "payload": { "result": { "content": [ { "type": "text", "text": "nb5324d184408256a-ack TOOL-OK-6042a9a31ca6" } ], "resultType": "complete", "_meta": { "io.modelcontextprotocol/serverInfo": { "name": "abw-mcp-lab", "version": "0.1.0" } } }, "jsonrpc": "2.0", "id": 4 } } ], "outputExcerpt": "nb5324d184408256a-ack TOOL-OK-6042a9a31ca6\nnb5324d184408256a-ack TOOL-OK-6042a9a31ca6", "notes": null }, { "slug": "claude-code-2-1-296-prompts-get-basic-20261010-59b9f3", "runId": "2026-10-10T18-30-05-764Z-59b9f3", "clientId": "claude-code", "clientVersion": "2.1.296", "caseId": "prompts.get.basic", "caseHash": "71929438ab28a581cf36bb5436ed17b23c8d4e2510e611335af66c306b1be25d", "feature": "prompts.get", "specRevisions": [ "2025-11-25", "2026-07-28" ], "status": "supported", "reason": "all expectations observed", "observedAt": "2026-10-10T18:30:09.125Z", "mode": "automated", "transport": "stdio", "era": "modern", "protocolVersion": "2026-07-28", "labCommit": null, "os": "win32", "nodeVersion": "v24.18.0", "outcomes": [ { "id": "listed", "kind": "request", "description": "client discovered the prompt via prompts/list", "met": true }, { "id": "got", "kind": "request", "description": "client fetched lab_greeting with the run's nonce as its argument", "met": true }, { "id": "prompt-reached-model", "kind": "output", "description": "the prompt's messages were sent to the model", "met": true } ], "wire": [ { "seq": 0, "dir": "in", "method": "server/discover", "payload": { "jsonrpc": "2.0", "id": "server-discover-probe-1", "method": "server/discover", "params": { "_meta": { "io.modelcontextprotocol/protocolVersion": "2026-07-28", "io.modelcontextprotocol/clientInfo": { "name": "claude-code", "title": "Claude Code", "version": "2.1.296", "description": "Anthropic's agentic coding tool", "websiteUrl": "https://claude.com/claude-code" }, "io.modelcontextprotocol/clientCapabilities": { "roots": { "listChanged": true }, "elicitation": { "form": {}, "url": {} } } } } } }, { "seq": 1, "dir": "out", "method": null, "payload": { "result": { "supportedVersions": [ "2026-07-28" ], "capabilities": { "tools": { "listChanged": true }, "prompts": { "listChanged": true }, "resources": { "listChanged": true } }, "resultType": "complete", "ttlMs": 0, "cacheScope": "private", "_meta": { "io.modelcontextprotocol/serverInfo": { "name": "abw-mcp-lab", "version": "0.1.0" } } }, "jsonrpc": "2.0", "id": "server-discover-probe-1" } }, { "seq": 6, "dir": "in", "method": "prompts/list", "payload": { "jsonrpc": "2.0", "id": 1, "method": "prompts/list", "params": { "_meta": { "io.modelcontextprotocol/protocolVersion": "2026-07-28", "io.modelcontextprotocol/clientInfo": { "name": "claude-code", "title": "Claude Code", "version": "2.1.296", "description": "Anthropic's agentic coding tool", "websiteUrl": "https://claude.com/claude-code" }, "io.modelcontextprotocol/clientCapabilities": { "roots": { "listChanged": true }, "elicitation": { "form": {}, "url": {} } } } } } }, { "seq": 7, "dir": "out", "method": null, "payload": { "result": { "prompts": [ { "name": "lab_greeting", "description": "MCP lab fixture: a prompt with one argument.", "arguments": [ { "name": "name", "description": "Name to include", "required": true } ] } ], "resultType": "complete", "ttlMs": 0, "cacheScope": "private", "_meta": { "io.modelcontextprotocol/serverInfo": { "name": "abw-mcp-lab", "version": "0.1.0" } } }, "jsonrpc": "2.0", "id": 1 } }, { "seq": 12, "dir": "in", "method": "prompts/get", "payload": { "jsonrpc": "2.0", "id": 4, "method": "prompts/get", "params": { "_meta": { "io.modelcontextprotocol/protocolVersion": "2026-07-28", "io.modelcontextprotocol/clientInfo": { "name": "claude-code", "title": "Claude Code", "version": "2.1.296", "description": "Anthropic's agentic coding tool", "websiteUrl": "https://claude.com/claude-code" }, "io.modelcontextprotocol/clientCapabilities": { "roots": { "listChanged": true }, "elicitation": { "form": {}, "url": {} } } }, "name": "lab_greeting", "arguments": { "name": "n639e2237978c133b" } } } }, { "seq": 13, "dir": "out", "method": null, "payload": { "result": { "messages": [ { "role": "user", "content": { "type": "text", "text": "Reply with exactly this text and nothing else: PROMPT-OK-a1eed5e0e865 n639e2237978c133b" } } ], "resultType": "complete", "_meta": { "io.modelcontextprotocol/serverInfo": { "name": "abw-mcp-lab", "version": "0.1.0" } } }, "jsonrpc": "2.0", "id": 4 } } ], "outputExcerpt": "PROMPT-OK-a1eed5e0e865 n639e2237978c133b\nPROMPT-OK-a1eed5e0e865 n639e2237978c133b", "notes": null }, { "slug": "claude-code-2-1-296-resources-read-basic-20261010-59b9f3", "runId": "2026-10-10T18-30-05-764Z-59b9f3", "clientId": "claude-code", "clientVersion": "2.1.296", "caseId": "resources.read.basic", "caseHash": "51c65d23517bb417570c975b5c5bb9e877a7b5722d920b221df216c6cfce710e", "feature": "resources.read", "specRevisions": [ "2025-11-25", "2026-07-28" ], "status": "supported", "reason": "all expectations observed", "observedAt": "2026-10-10T18:30:17.789Z", "mode": "automated", "transport": "stdio", "era": "modern", "protocolVersion": "2026-07-28", "labCommit": null, "os": "win32", "nodeVersion": "v24.18.0", "outcomes": [ { "id": "listed", "kind": "request", "description": "client discovered resources via resources/list", "met": true }, { "id": "read", "kind": "request", "description": "client read lab://fixtures/hello", "met": true }, { "id": "content-reached-model", "kind": "output", "description": "the resource content was passed to the model", "met": true } ], "wire": [ { "seq": 0, "dir": "in", "method": "server/discover", "payload": { "jsonrpc": "2.0", "id": "server-discover-probe-1", "method": "server/discover", "params": { "_meta": { "io.modelcontextprotocol/protocolVersion": "2026-07-28", "io.modelcontextprotocol/clientInfo": { "name": "claude-code", "title": "Claude Code", "version": "2.1.296", "description": "Anthropic's agentic coding tool", "websiteUrl": "https://claude.com/claude-code" }, "io.modelcontextprotocol/clientCapabilities": { "roots": { "listChanged": true }, "elicitation": { "form": {}, "url": {} } } } } } }, { "seq": 1, "dir": "out", "method": null, "payload": { "result": { "supportedVersions": [ "2026-07-28" ], "capabilities": { "tools": { "listChanged": true }, "prompts": { "listChanged": true }, "resources": { "listChanged": true } }, "resultType": "complete", "ttlMs": 0, "cacheScope": "private", "_meta": { "io.modelcontextprotocol/serverInfo": { "name": "abw-mcp-lab", "version": "0.1.0" } } }, "jsonrpc": "2.0", "id": "server-discover-probe-1" } }, { "seq": 8, "dir": "in", "method": "resources/list", "payload": { "jsonrpc": "2.0", "id": 2, "method": "resources/list", "params": { "_meta": { "io.modelcontextprotocol/protocolVersion": "2026-07-28", "io.modelcontextprotocol/clientInfo": { "name": "claude-code", "title": "Claude Code", "version": "2.1.296", "description": "Anthropic's agentic coding tool", "websiteUrl": "https://claude.com/claude-code" }, "io.modelcontextprotocol/clientCapabilities": { "roots": { "listChanged": true }, "elicitation": { "form": {}, "url": {} } } } } } }, { "seq": 10, "dir": "out", "method": null, "payload": { "result": { "resources": [ { "uri": "lab://fixtures/hello", "name": "lab_hello", "description": "MCP lab fixture: a static text resource.", "mimeType": "text/plain" } ], "resultType": "complete", "ttlMs": 0, "cacheScope": "private", "_meta": { "io.modelcontextprotocol/serverInfo": { "name": "abw-mcp-lab", "version": "0.1.0" } } }, "jsonrpc": "2.0", "id": 2 } }, { "seq": 12, "dir": "in", "method": "resources/read", "payload": { "jsonrpc": "2.0", "id": 4, "method": "resources/read", "params": { "_meta": { "io.modelcontextprotocol/protocolVersion": "2026-07-28", "io.modelcontextprotocol/clientInfo": { "name": "claude-code", "title": "Claude Code", "version": "2.1.296", "description": "Anthropic's agentic coding tool", "websiteUrl": "https://claude.com/claude-code" }, "io.modelcontextprotocol/clientCapabilities": { "roots": { "listChanged": true }, "elicitation": { "form": {}, "url": {} } } }, "uri": "lab://fixtures/hello" } } }, { "seq": 13, "dir": "out", "method": null, "payload": { "result": { "contents": [ { "uri": "lab://fixtures/hello", "mimeType": "text/plain", "text": "RESOURCE-OK-add5911d8c12" } ], "resultType": "complete", "ttlMs": 0, "cacheScope": "private", "_meta": { "io.modelcontextprotocol/serverInfo": { "name": "abw-mcp-lab", "version": "0.1.0" } } }, "jsonrpc": "2.0", "id": 4 } } ], "outputExcerpt": "RESOURCE-OK-add5911d8c12\nRESOURCE-OK-add5911d8c12", "notes": null }, { "slug": "claude-code-2-1-296-tools-call-basic-20261010-59b9f3", "runId": "2026-10-10T18-30-05-764Z-59b9f3", "clientId": "claude-code", "clientVersion": "2.1.296", "caseId": "tools.call.basic", "caseHash": "45f8134078c93d00272b0c760c2e3c5860b49fbe266d444146fa7a6b5e72ffbd", "feature": "tools.call", "specRevisions": [ "2025-11-25", "2026-07-28" ], "status": "supported", "reason": "all expectations observed", "observedAt": "2026-10-10T18:30:24.418Z", "mode": "automated", "transport": "stdio", "era": "modern", "protocolVersion": "2026-07-28", "labCommit": null, "os": "win32", "nodeVersion": "v24.18.0", "outcomes": [ { "id": "listed", "kind": "request", "description": "client discovered the tool via tools/list", "met": true }, { "id": "called", "kind": "request", "description": "client called lab_echo with the run's nonce", "met": true }, { "id": "result-reached-model", "kind": "output", "description": "the tool result was passed back to the model", "met": true } ], "wire": [ { "seq": 0, "dir": "in", "method": "server/discover", "payload": { "jsonrpc": "2.0", "id": "server-discover-probe-1", "method": "server/discover", "params": { "_meta": { "io.modelcontextprotocol/protocolVersion": "2026-07-28", "io.modelcontextprotocol/clientInfo": { "name": "claude-code", "title": "Claude Code", "version": "2.1.296", "description": "Anthropic's agentic coding tool", "websiteUrl": "https://claude.com/claude-code" }, "io.modelcontextprotocol/clientCapabilities": { "roots": { "listChanged": true }, "elicitation": { "form": {}, "url": {} } } } } } }, { "seq": 1, "dir": "out", "method": null, "payload": { "result": { "supportedVersions": [ "2026-07-28" ], "capabilities": { "tools": { "listChanged": true }, "prompts": { "listChanged": true }, "resources": { "listChanged": true } }, "resultType": "complete", "ttlMs": 0, "cacheScope": "private", "_meta": { "io.modelcontextprotocol/serverInfo": { "name": "abw-mcp-lab", "version": "0.1.0" } } }, "jsonrpc": "2.0", "id": "server-discover-probe-1" } }, { "seq": 9, "dir": "in", "method": "tools/list", "payload": { "jsonrpc": "2.0", "id": 3, "method": "tools/list", "params": { "_meta": { "io.modelcontextprotocol/protocolVersion": "2026-07-28", "io.modelcontextprotocol/clientInfo": { "name": "claude-code", "title": "Claude Code", "version": "2.1.296", "description": "Anthropic's agentic coding tool", "websiteUrl": "https://claude.com/claude-code" }, "io.modelcontextprotocol/clientCapabilities": { "roots": { "listChanged": true }, "elicitation": { "form": {}, "url": {} } } } } } }, { "seq": 11, "dir": "out", "method": null, "payload": { "result": { "tools": [ { "name": "lab_echo", "description": "MCP lab fixture: echoes a token back with an acknowledgement.", "inputSchema": { "type": "object", "$schema": "https://json-schema.org/draft/2020-12/schema", "properties": { "token": { "type": "string", "description": "Token to echo" } }, "required": [ "token" ] } } ], "resultType": "complete", "ttlMs": 0, "cacheScope": "private", "_meta": { "io.modelcontextprotocol/serverInfo": { "name": "abw-mcp-lab", "version": "0.1.0" } } }, "jsonrpc": "2.0", "id": 3 } }, { "seq": 12, "dir": "in", "method": "tools/call", "payload": { "jsonrpc": "2.0", "id": 4, "method": "tools/call", "params": { "_meta": { "progressToken": 4, "io.modelcontextprotocol/protocolVersion": "2026-07-28", "io.modelcontextprotocol/clientInfo": { "name": "claude-code", "title": "Claude Code", "version": "2.1.296", "description": "Anthropic's agentic coding tool", "websiteUrl": "https://claude.com/claude-code" }, "io.modelcontextprotocol/clientCapabilities": { "roots": { "listChanged": 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