[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8,"_9":10,"_11":12},"actionData","errors","root",{"_228":-5,"_231":232,"_233":234},"routes/shell",{"_40":41,"_227":-5,"_228":-5,"_229":230},"routes/repo",{"_33":-7,"_34":35,"_36":37,"_38":39,"_40":41,"_42":31,"_43":31,"_44":31,"_45":31,"_46":31,"_47":31,"_48":49,"_50":49,"_51":31,"_52":-7,"_53":-7,"_54":55,"_56":57,"_58":59,"_60":-5,"_61":62,"_63":64,"_65":66,"_67":68},"routes/repo.blob",{"_13":14,"_15":16,"_17":18,"_19":20,"_21":14,"_22":23,"_24":-5,"_25":26,"_27":28,"_28":29,"_30":31,"_32":14},"ref","f25cf6fe49844a8bc611cfbc1f1142913f9aef41","path","apps/server/src/mcp.test.ts","oid","f9d63eafdda55eb7bfb25c25739a11a3925c6e8c","size",26202,"commit","mounts",[],"source","plain",{"_13":14,"_15":16},"kind","text","import { describe, expect, it } from \"bun:test\";\n\nimport { limits } from \"@chopin/dialect\";\n\nimport { handler, TOOLS } from \"./mcp\";\n\nimport type {\n\tCreateDocument,\n\tCreateDocumentInput,\n\tDocument,\n\tDocumentReader,\n\tImplementations,\n} from \"./mcp\";\nimport type { Run } from \"./tasks/graphs\";\n\nconst document: Document = {\n\tid: \"f401c8d6-3717-4f1d-8473-cfdd0af894e4\",\n\ttitle: \"Release readiness\",\n\tsource: \"# Release readiness\\n\",\n\trevision: 4,\n};\n\nlet creation = {\n\tidempotencyKey: \"create-plan-1\",\n\trepository: \"githubnext/chopin\",\n\tbaseBranch: \"main\",\n\tbaseCommit: \"0123456789abcdef0123456789abcdef01234567\",\n\ttitle: \"Ship MCP creation\",\n\tbrief: {\n\t\tgoal: \"Create a collaborative plan.\",\n\t\tconstraints: [\"Keep plans immutable through MCP.\"],\n\t\tsettledDecisions: [\"Use the documented dialect.\"],\n\t\topenQuestions: [\"Which reviewer owns the rollout?\"],\n\t\trepositoryFindings: [\"The plan becomes a hosted channel.\"],\n\t},\n\tplan: '# Draft\\n\\n\\nCreated through MCP.\\n\\n',\n};\n\nfunction request(\n\tbody: unknown,\n\tinit: RequestInit = {},\n): Request {\n\tlet headers = new Headers({\n\t\tauthorization: \"Bearer allowed\",\n\t\t\"content-type\": \"application/json\",\n\t\t...init.headers,\n\t});\n\treturn new Request(\"https://chopin.test/mcp\", {\n\t\tmethod: \"POST\",\n\t\t...init,\n\t\theaders,\n\t\tbody: JSON.stringify(body),\n\t});\n}\n\nfunction reader(): DocumentReader {\n\treturn {\n\t\tasync list(caller, repository) {\n\t\t\treturn caller === \"octocat\" && repository === \"githubnext/chopin\"\n\t\t\t\t? [{ id: document.id, title: document.title }]\n\t\t\t\t: [];\n\t\t},\n\t\tasync read(caller, id) {\n\t\t\treturn caller === \"octocat\" && id === document.id ? document : undefined;\n\t\t},\n\t};\n}\n\nfunction unavailable(): CreateDocument {\n\treturn {\n\t\tasync create() {\n\t\t\treturn { kind: \"forbidden\" };\n\t\t},\n\t};\n}\n\nfunction endpoint() {\n\treturn handler({\n\t\tcaller: request =>\n\t\t\trequest.headers.get(\"authorization\") === \"Bearer allowed\"\n\t\t\t\t? \"octocat\"\n\t\t\t\t: undefined,\n\t\tdocuments: reader(),\n\t});\n}\n\nasync function json(response: Response): Promise> {\n\treturn await response.json() as Record;\n}\n\ndescribe(\"the MCP read protocol\", () => {\n\tit(\"reads and claims an implementation through its initialized client session\", async () => {\n\t\tlet active: Run | undefined;\n\t\tlet implementations: Implementations = {\n\t\t\tasync readImplementation(_caller, id) {\n\t\t\t\tif (id !== document.id) return undefined;\n\t\t\t\treturn {\n\t\t\t\t\tdocument,\n\t\t\t\t\trepository: {\n\t\t\t\t\t\tname: \"githubnext/chopin\",\n\t\t\t\t\t\tbaseBranch: \"main\",\n\t\t\t\t\t\tbaseCommit: \"abc123\",\n\t\t\t\t\t},\n\t\t\t\t\tgraph: {\n\t\t\t\t\t\tnumber: 1,\n\t\t\t\t\t\trevision: 4,\n\t\t\t\t\t\tplanRevision: 4,\n\t\t\t\t\t\tstate: \"approved\",\n\t\t\t\t\t\tdefinition: { tasks: [] },\n\t\t\t\t\t},\n\t\t\t\t\texecution: active ? { state: \"active\", run: active } : { state: \"idle\" },\n\t\t\t\t\thistory: [],\n\t\t\t\t};\n\t\t\t},\n\t\t\tasync startImplementation(_caller, input) {\n\t\t\t\tif (active) return { kind: \"active\", run: active };\n\t\t\t\tactive = {\n\t\t\t\t\tid: \"run-1\",\n\t\t\t\t\tuser: \"octocat\",\n\t\t\t\t\tclient: { name: input.client.name, version: input.client.version },\n\t\t\t\t\tsession: input.client.session,\n\t\t\t\t\tplanRevision: input.planRevision,\n\t\t\t\t\tgraphVersion: input.graphVersion,\n\t\t\t\t\tgraphRevision: input.graphRevision,\n\t\t\t\t\trepository: input.repository,\n\t\t\t\t\tbranch: input.branch,\n\t\t\t\t\tcommit: input.commit,\n\t\t\t\t\tstartedAt: \"2026-08-17T12:00:00.000Z\",\n\t\t\t\t};\n\t\t\t\treturn { kind: \"started\", run: active };\n\t\t\t},\n\t\t};\n\t\tlet mcp = handler({\n\t\t\tcaller: () => \"octocat\",\n\t\t\tdocuments: reader(),\n\t\t\tcreate: unavailable(),\n\t\t\timplementations,\n\t\t});\n\t\tlet initialized = await mcp(request({\n\t\t\tjsonrpc: \"2.0\",\n\t\t\tid: 1,\n\t\t\tmethod: \"initialize\",\n\t\t\tparams: { clientInfo: { name: \"Codex\", version: \"1.2.3\" } },\n\t\t}));\n\t\tlet session = initialized.headers.get(\"mcp-session-id\");\n\t\texpect(session).toBeTruthy();\n\n\t\tlet read = await json(\n\t\t\tawait mcp(request({\n\t\t\t\tjsonrpc: \"2.0\",\n\t\t\t\tid: 2,\n\t\t\t\tmethod: \"tools/call\",\n\t\t\t\tparams: { name: \"read_implementation\", arguments: { id: document.id } },\n\t\t\t})),\n\t\t);\n\t\texpect((read.result as { structuredContent: unknown }).structuredContent).toMatchObject({\n\t\t\tgraph: { state: \"approved\", revision: 4 },\n\t\t\texecution: { state: \"idle\" },\n\t\t});\n\n\t\tlet arguments_ = {\n\t\t\tid: document.id,\n\t\t\tplanRevision: 4,\n\t\t\tgraphVersion: 1,\n\t\t\tgraphRevision: 4,\n\t\t\trepository: \"githubnext/chopin\",\n\t\t\tbranch: \"tq/017\",\n\t\t\tcommit: \"deadbeef\",\n\t\t};\n\t\tlet withoutSession = await json(\n\t\t\tawait mcp(request({\n\t\t\t\tjsonrpc: \"2.0\",\n\t\t\t\tid: 3,\n\t\t\t\tmethod: \"tools/call\",\n\t\t\t\tparams: { name: \"start_implementation\", arguments: arguments_ },\n\t\t\t})),\n\t\t);\n\t\texpect((withoutSession.result as { structuredContent: unknown }).structuredContent).toEqual({\n\t\t\tcode: \"session-required\",\n\t\t});\n\n\t\tlet claimed = await json(\n\t\t\tawait mcp(request({\n\t\t\t\tjsonrpc: \"2.0\",\n\t\t\t\tid: 4,\n\t\t\t\tmethod: \"tools/call\",\n\t\t\t\tparams: { name: \"start_implementation\", arguments: arguments_ },\n\t\t\t}, { headers: { \"mcp-session-id\": session! } })),\n\t\t);\n\t\texpect((claimed.result as { structuredContent: unknown }).structuredContent).toMatchObject({\n\t\t\tstate: \"started\",\n\t\t\trun: {\n\t\t\t\tid: \"run-1\",\n\t\t\t\tgraphVersion: 1,\n\t\t\t\tclient: { name: \"Codex\", version: \"1.2.3\" },\n\t\t\t\tsession,\n\t\t\t},\n\t\t});\n\t});\n\n\tit(\"advertises and dispatches lifecycle tools from one implementation capability\", async () => {\n\t\tlet received: unknown;\n\t\ttype LifecycleReport = Awaited<\n\t\t\tReturnType[\"reportLifecycle\"]>>\n\t\t>;\n\t\tlet malformed: LifecycleReport = {\n\t\t\tkind: \"accepted\",\n\t\t\t// @ts-expect-error lifecycle reports require the complete implementation projection\n\t\t\tlifecycle: { activity: \"recorded\" },\n\t\t};\n\t\texpect(malformed).toMatchObject({ lifecycle: { activity: \"recorded\" } });\n\n\t\tlet lifecycle = {\n\t\t\texecution: { state: \"active\" as const },\n\t\t\tactivity: { tasks: [], events: [] },\n\t\t\thistory: [],\n\t\t};\n\t\tlet implementations: Implementations = {\n\t\t\tasync readImplementation() {\n\t\t\t\treturn undefined;\n\t\t\t},\n\t\t\tasync startImplementation() {\n\t\t\t\treturn { kind: \"refused\" as const, reason: \"unused\" };\n\t\t\t},\n\t\t\tasync reportLifecycle(_caller: string, input: unknown) {\n\t\t\t\treceived = input;\n\t\t\t\treturn { kind: \"accepted\" as const, lifecycle };\n\t\t\t},\n\t\t};\n\t\tlet mcp = handler({\n\t\t\tcaller: () => \"octocat\",\n\t\t\tdocuments: reader(),\n\t\t\timplementations,\n\t\t});\n\t\tlet initialized = await mcp(request({\n\t\t\tjsonrpc: \"2.0\",\n\t\t\tid: 1,\n\t\t\tmethod: \"initialize\",\n\t\t\tparams: { clientInfo: { name: \"Codex\", version: \"1.2.3\" } },\n\t\t}));\n\t\tlet session = initialized.headers.get(\"mcp-session-id\")!;\n\t\tlet listed = await json(\n\t\t\tawait mcp(request({\n\t\t\t\tjsonrpc: \"2.0\",\n\t\t\t\tid: 2,\n\t\t\t\tmethod: \"tools/list\",\n\t\t\t}, { headers: { \"mcp-session-id\": session } })),\n\t\t);\n\t\tlet listedTools = (listed.result as {\n\t\t\ttools: Array<{ name: string; inputSchema: Record }>;\n\t\t}).tools;\n\t\tlet toolNames = listedTools.map(tool => tool.name);\n\t\texpect(toolNames.filter(name => name === \"report_verification\")).toHaveLength(1);\n\t\texpect(toolNames)\n\t\t\t.toEqual(expect.arrayContaining([\n\t\t\t\t\"start_task\",\n\t\t\t\t\"block_task\",\n\t\t\t\t\"report_pr\",\n\t\t\t\t\"complete_task\",\n\t\t\t\t\"report_verification\",\n\t\t\t\t\"request_revision\",\n\t\t\t]));\n\t\texpect(listedTools.find(tool => tool.name === \"report_verification\")?.inputSchema)\n\t\t\t.toMatchObject({\n\t\t\t\trequired: [\n\t\t\t\t\t\"id\",\n\t\t\t\t\t\"runId\",\n\t\t\t\t\t\"passed\",\n\t\t\t\t\t\"summary\",\n\t\t\t\t\t\"reviewerMethod\",\n\t\t\t\t\t\"evidence\",\n\t\t\t\t\t\"tasksNeedingWork\",\n\t\t\t\t\t\"idempotencyKey\",\n\t\t\t\t],\n\t\t\t\tadditionalProperties: false,\n\t\t\t\tproperties: {\n\t\t\t\t\tevidence: {\n\t\t\t\t\t\tminItems: 1,\n\t\t\t\t\t\titems: { required: [\"taskId\", \"evidence\"], additionalProperties: false },\n\t\t\t\t\t},\n\t\t\t\t},\n\t\t\t});\n\n\t\tlet result = await json(\n\t\t\tawait mcp(request({\n\t\t\t\tjsonrpc: \"2.0\",\n\t\t\t\tid: 3,\n\t\t\t\tmethod: \"tools/call\",\n\t\t\t\tparams: {\n\t\t\t\t\tname: \"block_task\",\n\t\t\t\t\targuments: {\n\t\t\t\t\t\tid: document.id,\n\t\t\t\t\t\trunId: \"run-1\",\n\t\t\t\t\t\ttaskId: \"model\",\n\t\t\t\t\t\treason: \"Waiting for CI.\",\n\t\t\t\t\t\tidempotencyKey: \"block-model\",\n\t\t\t\t\t},\n\t\t\t\t},\n\t\t\t}, { headers: { \"mcp-session-id\": session } })),\n\t\t);\n\t\texpect(received).toEqual({\n\t\t\tid: document.id,\n\t\t\tkind: \"block\",\n\t\t\trunId: \"run-1\",\n\t\t\ttaskId: \"model\",\n\t\t\treason: \"Waiting for CI.\",\n\t\t\tidempotencyKey: \"block-model\",\n\t\t});\n\t\texpect((result.result as { structuredContent: unknown }).structuredContent).toEqual({\n\t\t\t...lifecycle,\n\t\t});\n\n\t\tlet verification = {\n\t\t\tid: document.id,\n\t\t\trunId: \"run-1\",\n\t\t\tpassed: true,\n\t\t\tsummary: \"Every acceptance criterion passed.\",\n\t\t\treviewerMethod: \"Ran the focused suite and inspected the diff.\",\n\t\t\tevidence: [{ taskId: \"model\", evidence: [\"The focused suite passed.\"] }],\n\t\t\ttasksNeedingWork: [],\n\t\t\tidempotencyKey: \"verify-model\",\n\t\t};\n\t\tlet withoutRunId: Record = { ...verification };\n\t\tdelete withoutRunId.runId;\n\t\tlet withoutSession = await json(\n\t\t\tawait mcp(request({\n\t\t\t\tjsonrpc: \"2.0\",\n\t\t\t\tid: 4,\n\t\t\t\tmethod: \"tools/call\",\n\t\t\t\tparams: { name: \"report_verification\", arguments: verification },\n\t\t\t})),\n\t\t);\n\t\texpect((withoutSession.result as { structuredContent: unknown }).structuredContent).toEqual({\n\t\t\tcode: \"session-required\",\n\t\t});\n\n\t\tfor (\n\t\t\tlet invalid of [\n\t\t\t\twithoutRunId,\n\t\t\t\t{\n\t\t\t\t\t...verification,\n\t\t\t\t\tevidence: [{ taskId: \"model\", evidence: [\"passed\"], extra: true }],\n\t\t\t\t},\n\t\t\t\t{\n\t\t\t\t\t...verification,\n\t\t\t\t\tevidence: [{ taskId: \"model\", evidence: [\"x\".repeat(5001)] }],\n\t\t\t\t},\n\t\t\t\t{ ...verification, summary: \"x\".repeat(5001) },\n\t\t\t\t{ ...verification, reviewerMethod: \"x\".repeat(5001) },\n\t\t\t\t{\n\t\t\t\t\t...verification,\n\t\t\t\t\tevidence: [{ taskId: \"x\".repeat(129), evidence: [\"passed\"] }],\n\t\t\t\t},\n\t\t\t\t{ ...verification, tasksNeedingWork: [\"x\".repeat(129)] },\n\t\t\t]\n\t\t) {\n\t\t\tlet invalidResult = await json(\n\t\t\t\tawait mcp(request({\n\t\t\t\t\tjsonrpc: \"2.0\",\n\t\t\t\t\tid: 5,\n\t\t\t\t\tmethod: \"tools/call\",\n\t\t\t\t\tparams: { name: \"report_verification\", arguments: invalid },\n\t\t\t\t}, { headers: { \"mcp-session-id\": session } })),\n\t\t\t);\n\t\t\texpect(invalidResult).toMatchObject({ error: { code: -32602 } });\n\t\t}\n\n\t\tlet verified = await json(\n\t\t\tawait mcp(request({\n\t\t\t\tjsonrpc: \"2.0\",\n\t\t\t\tid: 6,\n\t\t\t\tmethod: \"tools/call\",\n\t\t\t\tparams: { name: \"report_verification\", arguments: verification },\n\t\t\t}, { headers: { \"mcp-session-id\": session } })),\n\t\t);\n\t\texpect(received).toEqual({ ...verification, kind: \"report_verification\" });\n\t\texpect((verified.result as { structuredContent: unknown }).structuredContent).toEqual({\n\t\t\t...lifecycle,\n\t\t});\n\t});\n\n\tit(\"keeps the repository-scoped tool schemas static\", async () => {\n\t\texpect(TOOLS).toEqual(expect.arrayContaining([\n\t\t\texpect.objectContaining({\n\t\t\t\tname: \"list_documents\",\n\t\t\t\tinputSchema: expect.objectContaining({\n\t\t\t\t\trequired: [\"repository\"],\n\t\t\t\t\tadditionalProperties: false,\n\t\t\t\t}),\n\t\t\t}),\n\t\t\texpect.objectContaining({\n\t\t\t\tname: \"read_document\",\n\t\t\t\tinputSchema: expect.objectContaining({ required: [\"id\"], additionalProperties: false }),\n\t\t\t}),\n\t\t]));\n\t});\n\n\tit(\"creates a validated canonical document through the host adapter\", async () => {\n\t\tlet mcp = handler({\n\t\t\tcaller: () => \"octocat\",\n\t\t\tdocuments: reader(),\n\t\t\tcreate: {\n\t\t\t\tasync create(_caller: string, input: CreateDocumentInput) {\n\t\t\t\t\treturn {\n\t\t\t\t\t\tkind: \"created\" as const,\n\t\t\t\t\t\tdocument: {\n\t\t\t\t\t\t\tid: \"created\",\n\t\t\t\t\t\t\ttitle: input.title,\n\t\t\t\t\t\t\tbrief: input.brief,\n\t\t\t\t\t\t\tsource: input.plan,\n\t\t\t\t\t\t\trevision: 0,\n\t\t\t\t\t\t\turl: \"/channels/created\",\n\t\t\t\t\t\t},\n\t\t\t\t\t};\n\t\t\t\t},\n\t\t\t},\n\t\t});\n\n\t\tlet result = await json(\n\t\t\tawait mcp(request({\n\t\t\t\tjsonrpc: \"2.0\",\n\t\t\t\tid: 5,\n\t\t\t\tmethod: \"tools/call\",\n\t\t\t\tparams: { name: \"create_document\", arguments: creation },\n\t\t\t})),\n\t\t);\n\n\t\texpect(result.error).toBeUndefined();\n\t\texpect((result.result as { structuredContent: Record }).structuredContent)\n\t\t\t.toMatchObject({\n\t\t\t\tid: \"created\",\n\t\t\t\ttitle: creation.title,\n\t\t\t\tbrief: creation.brief,\n\t\t\t\trevision: 0,\n\t\t\t\turl: \"/channels/created\",\n\t\t\t});\n\t\texpect(\n\t\t\t(result.result as { structuredContent: { source: string } }).structuredContent.source,\n\t\t).toMatch(/]*id=\"[0-7][0-9A-HJKMNP-TV-Z]{25}\")(?=[^>]*type=\"note\")/);\n\t});\n\n\tit(\"returns dialect issues without asking the host to persist an invalid plan\", async () => {\n\t\tlet created = false;\n\t\tlet mcp = handler({\n\t\t\tcaller: () => \"octocat\",\n\t\t\tdocuments: reader(),\n\t\t\tcreate: {\n\t\t\t\tasync create() {\n\t\t\t\t\tcreated = true;\n\t\t\t\t\treturn { kind: \"forbidden\" as const };\n\t\t\t\t},\n\t\t\t},\n\t\t});\n\n\t\tlet result = await json(\n\t\t\tawait mcp(request({\n\t\t\t\tjsonrpc: \"2.0\",\n\t\t\t\tid: 6,\n\t\t\t\tmethod: \"tools/call\",\n\t\t\t\tparams: {\n\t\t\t\t\tname: \"create_document\",\n\t\t\t\t\targuments: { ...creation, plan: \"\\n\" },\n\t\t\t\t},\n\t\t\t})),\n\t\t);\n\n\t\texpect((result.result as { isError: boolean }).isError).toBe(true);\n\t\texpect(\n\t\t\t(result.result as { structuredContent: { issues: unknown[] } }).structuredContent.issues,\n\t\t).toEqual([expect.objectContaining({\n\t\t\tcode: \"unknown-component\",\n\t\t\tpath: \"root > Chart[0]\",\n\t\t\toffset: 0,\n\t\t})]);\n\t\texpect(created).toBe(false);\n\t});\n\n\tit(\"returns a structured issue for plan syntax that cannot be parsed\", async () => {\n\t\tlet mcp = handler({\n\t\t\tcaller: () => \"octocat\",\n\t\t\tdocuments: reader(),\n\t\t\tcreate: {\n\t\t\t\tasync create() {\n\t\t\t\t\treturn { kind: \"forbidden\" as const };\n\t\t\t\t},\n\t\t\t},\n\t\t});\n\n\t\tlet result = await json(\n\t\t\tawait mcp(request({\n\t\t\t\tjsonrpc: \"2.0\",\n\t\t\t\tid: 7,\n\t\t\t\tmethod: \"tools/call\",\n\t\t\t\tparams: {\n\t\t\t\t\tname: \"create_document\",\n\t\t\t\t\targuments: { ...creation, plan: \" {\n\t\tlet mcp = handler({\n\t\t\tcaller: () => \"octocat\",\n\t\t\tdocuments: reader(),\n\t\t\tcreate: {\n\t\t\t\tasync create() {\n\t\t\t\t\treturn { kind: \"conflict\" as const };\n\t\t\t\t},\n\t\t\t},\n\t\t});\n\n\t\tlet result = await json(\n\t\t\tawait mcp(request({\n\t\t\t\tjsonrpc: \"2.0\",\n\t\t\t\tid: 7,\n\t\t\t\tmethod: \"tools/call\",\n\t\t\t\tparams: { name: \"create_document\", arguments: creation },\n\t\t\t})),\n\t\t);\n\n\t\texpect((result.result as { isError: boolean }).isError).toBe(true);\n\t\texpect((result.result as { structuredContent: unknown }).structuredContent).toEqual({\n\t\t\tcode: \"idempotency-conflict\",\n\t\t});\n\t});\n\n\tit(\"advertises the canonical repository and non-blank channel constraints it enforces\", () => {\n\t\tlet list = TOOLS.find(tool => tool.name === \"list_documents\")!;\n\t\tlet read = TOOLS.find(tool => tool.name === \"read_document\")!;\n\t\texpect((list.inputSchema.properties as Record).repository.pattern)\n\t\t\t.toBe(\n\t\t\t\t\"^[A-Za-z0-9](?:[A-Za-z0-9]|-(?=[A-Za-z0-9])){0,38}/(?!\\\\.\\\\.?$)[A-Za-z0-9._-]{1,100}$\",\n\t\t\t);\n\t\texpect((read.inputSchema.properties as Record).id.pattern).toBe(\n\t\t\t\"\\\\S\",\n\t\t);\n\t\texpect((read.inputSchema.properties as Record).id.maxLength)\n\t\t\t.toBe(128);\n\t});\n\n\tit(\"does not reveal documents to an unauthenticated caller\", async () => {\n\t\tlet response = await endpoint()(request({\n\t\t\tjsonrpc: \"2.0\",\n\t\t\tid: 1,\n\t\t\tmethod: \"tools/call\",\n\t\t\tparams: { name: \"list_documents\", arguments: { repository: \"githubnext/chopin\" } },\n\t\t}, { headers: { authorization: \"Bearer denied\" } }));\n\n\t\texpect(response.status).toBe(401);\n\t\texpect(await response.text()).not.toContain(document.title);\n\t});\n\n\tit(\"reports parse errors and invalid requests with JSON-RPC errors\", async () => {\n\t\tlet mcp = endpoint();\n\t\tlet malformed = new Request(\"https://chopin.test/mcp\", {\n\t\t\tmethod: \"POST\",\n\t\t\theaders: { authorization: \"Bearer allowed\", \"content-type\": \"application/json\" },\n\t\t\tbody: \"{\",\n\t\t});\n\t\texpect(await json(await mcp(malformed))).toEqual({\n\t\t\tjsonrpc: \"2.0\",\n\t\t\tid: null,\n\t\t\terror: { code: -32700, message: \"parse error\" },\n\t\t});\n\t\texpect(await json(await mcp(request({ jsonrpc: \"1.0\", id: 4, method: \"tools/list\" })))).toEqual(\n\t\t\t{\n\t\t\t\tjsonrpc: \"2.0\",\n\t\t\t\tid: 4,\n\t\t\t\terror: { code: -32600, message: \"invalid request\" },\n\t\t\t},\n\t\t);\n\t});\n\n\tit(\"rejects declared and streamed request bodies beyond the bounded transport budget\", async () => {\n\t\tlet mcp = endpoint();\n\t\tlet declared = await mcp(\n\t\t\tnew Request(\"https://chopin.test/mcp\", {\n\t\t\t\tmethod: \"POST\",\n\t\t\t\theaders: {\n\t\t\t\t\tauthorization: \"Bearer allowed\",\n\t\t\t\t\t\"content-length\": \"786433\",\n\t\t\t\t\t\"content-type\": \"application/json\",\n\t\t\t\t},\n\t\t\t\tbody: \"{}\",\n\t\t\t}),\n\t\t);\n\t\tlet streamed = await mcp(\n\t\t\tnew Request(\"https://chopin.test/mcp\", {\n\t\t\t\tmethod: \"POST\",\n\t\t\t\theaders: {\n\t\t\t\t\tauthorization: \"Bearer allowed\",\n\t\t\t\t\t\"content-type\": \"application/json\",\n\t\t\t\t},\n\t\t\t\tbody: new ReadableStream({\n\t\t\t\t\tstart(controller) {\n\t\t\t\t\t\tfor (let index = 0; index < 7; index++) {\n\t\t\t\t\t\t\tcontroller.enqueue(new Uint8Array(131_072));\n\t\t\t\t\t\t}\n\t\t\t\t\t\tcontroller.close();\n\t\t\t\t\t},\n\t\t\t\t}),\n\t\t\t}),\n\t\t);\n\n\t\tfor (let response of [declared, streamed]) {\n\t\t\texpect(response.status).toBe(413);\n\t\t\texpect(await response.text()).toBe(\"request too large\");\n\t\t}\n\t});\n\n\tit(\"accepts a document-creation request beyond the former read-only budget\", async () => {\n\t\tlet mcp = handler({\n\t\t\tcaller: () => \"octocat\",\n\t\t\tdocuments: reader(),\n\t\t\tcreate: {\n\t\t\t\tasync create(_caller, input) {\n\t\t\t\t\treturn {\n\t\t\t\t\t\tkind: \"created\" as const,\n\t\t\t\t\t\tdocument: {\n\t\t\t\t\t\t\tid: \"large-plan\",\n\t\t\t\t\t\t\ttitle: input.title,\n\t\t\t\t\t\t\tbrief: input.brief,\n\t\t\t\t\t\t\tsource: input.plan,\n\t\t\t\t\t\t\trevision: 0,\n\t\t\t\t\t\t\turl: \"/channels/large-plan\",\n\t\t\t\t\t\t},\n\t\t\t\t\t};\n\t\t\t\t},\n\t\t\t},\n\t\t});\n\t\tlet response = await mcp(request({\n\t\t\tjsonrpc: \"2.0\",\n\t\t\tid: 11,\n\t\t\tmethod: \"tools/call\",\n\t\t\tparams: {\n\t\t\t\tname: \"create_document\",\n\t\t\t\targuments: { ...creation, plan: `# Large\\n\\n${\"word \".repeat(14_000)}\\n` },\n\t\t\t},\n\t\t}));\n\n\t\texpect(response.status).toBe(200);\n\t\texpect((await json(response)).error).toBeUndefined();\n\t});\n\n\tit(\"rejects a UTF-8 canonical plan beyond the source limit before creating it\", async () => {\n\t\tlet created = false;\n\t\tlet mcp = handler({\n\t\t\tcaller: () => \"octocat\",\n\t\t\tdocuments: reader(),\n\t\t\tcreate: {\n\t\t\t\tasync create() {\n\t\t\t\t\tcreated = true;\n\t\t\t\t\treturn { kind: \"forbidden\" as const };\n\t\t\t\t},\n\t\t\t},\n\t\t});\n\t\tlet result = await json(\n\t\t\tawait mcp(request({\n\t\t\t\tjsonrpc: \"2.0\",\n\t\t\t\tid: 12,\n\t\t\t\tmethod: \"tools/call\",\n\t\t\t\tparams: {\n\t\t\t\t\tname: \"create_document\",\n\t\t\t\t\targuments: {\n\t\t\t\t\t\t...creation,\n\t\t\t\t\t\tplan: `# ${\"😀\".repeat(limits.MAX_SOURCE_BYTES / 4)}\\n`,\n\t\t\t\t\t},\n\t\t\t\t},\n\t\t\t})),\n\t\t);\n\n\t\texpect((result.result as { isError: boolean }).isError).toBe(true);\n\t\texpect(\n\t\t\t(result.result as { structuredContent: { issues: unknown[] } }).structuredContent.issues,\n\t\t).toEqual([expect.objectContaining({ code: \"source-too-large\", path: \"root\" })]);\n\t\texpect(created).toBe(false);\n\t});\n\n\tit(\"replays reordered creation values and conflicts on a changed value\", async () => {\n\t\tlet accepted: CreateDocumentInput | undefined;\n\t\tlet fingerprints: string[] = [];\n\t\tlet mcp = handler({\n\t\t\tcaller: () => \"octocat\",\n\t\t\tdocuments: reader(),\n\t\t\tcreate: {\n\t\t\t\tasync create(_caller, input) {\n\t\t\t\t\tfingerprints.push(input.fingerprint);\n\t\t\t\t\tlet document = {\n\t\t\t\t\t\tid: \"replayed\",\n\t\t\t\t\t\ttitle: input.title,\n\t\t\t\t\t\tbrief: input.brief,\n\t\t\t\t\t\tsource: input.plan,\n\t\t\t\t\t\trevision: 0,\n\t\t\t\t\t\turl: \"/channels/replayed\",\n\t\t\t\t\t};\n\t\t\t\t\tif (!accepted) {\n\t\t\t\t\t\taccepted = input;\n\t\t\t\t\t\treturn { kind: \"created\" as const, document };\n\t\t\t\t\t}\n\t\t\t\t\treturn accepted.fingerprint === input.fingerprint\n\t\t\t\t\t\t? { kind: \"replayed\" as const, document }\n\t\t\t\t\t\t: { kind: \"conflict\" as const };\n\t\t\t\t},\n\t\t\t},\n\t\t});\n\t\tlet reordered = {\n\t\t\tplan: creation.plan,\n\t\t\tbrief: {\n\t\t\t\trepositoryFindings: creation.brief.repositoryFindings,\n\t\t\t\topenQuestions: creation.brief.openQuestions,\n\t\t\t\tsettledDecisions: creation.brief.settledDecisions,\n\t\t\t\tconstraints: creation.brief.constraints,\n\t\t\t\tgoal: creation.brief.goal,\n\t\t\t},\n\t\t\ttitle: creation.title,\n\t\t\tbaseCommit: creation.baseCommit,\n\t\t\tbaseBranch: creation.baseBranch,\n\t\t\trepository: creation.repository,\n\t\t\tidempotencyKey: creation.idempotencyKey,\n\t\t};\n\n\t\tfor (let [id, createArguments] of [[13, creation], [14, reordered]]) {\n\t\t\tlet result = await json(\n\t\t\t\tawait mcp(request({\n\t\t\t\t\tjsonrpc: \"2.0\",\n\t\t\t\t\tid,\n\t\t\t\t\tmethod: \"tools/call\",\n\t\t\t\t\tparams: { name: \"create_document\", arguments: createArguments },\n\t\t\t\t})),\n\t\t\t);\n\t\t\texpect((result.result as { structuredContent: { id: string } }).structuredContent.id)\n\t\t\t\t.toBe(\"replayed\");\n\t\t}\n\n\t\tlet changed = await json(\n\t\t\tawait mcp(request({\n\t\t\t\tjsonrpc: \"2.0\",\n\t\t\t\tid: 15,\n\t\t\t\tmethod: \"tools/call\",\n\t\t\t\tparams: {\n\t\t\t\t\tname: \"create_document\",\n\t\t\t\t\targuments: { ...creation, title: \"A changed title\" },\n\t\t\t\t},\n\t\t\t})),\n\t\t);\n\t\texpect((changed.result as { isError: boolean }).isError).toBe(true);\n\t\texpect((changed.result as { structuredContent: unknown }).structuredContent).toEqual({\n\t\t\tcode: \"idempotency-conflict\",\n\t\t});\n\t\texpect(fingerprints).toHaveLength(3);\n\t\texpect(fingerprints[1]).toBe(fingerprints[0]);\n\t\texpect(fingerprints[2]).not.toBe(fingerprints[0]);\n\t});\n\n\tit(\"does not advertise or dispatch creation from a read-only host\", async () => {\n\t\tlet mcp = handler({ caller: () => \"octocat\", documents: reader() });\n\t\tlet tools = await json(\n\t\t\tawait mcp(request({ jsonrpc: \"2.0\", id: 16, method: \"tools/list\" })),\n\t\t);\n\n\t\texpect((tools.result as { tools: Array<{ name: string }> }).tools.map(tool => tool.name))\n\t\t\t.toEqual([\"list_documents\", \"read_document\"]);\n\t\tlet creationAttempt = await json(\n\t\t\tawait mcp(request({\n\t\t\t\tjsonrpc: \"2.0\",\n\t\t\t\tid: 17,\n\t\t\t\tmethod: \"tools/call\",\n\t\t\t\tparams: { name: \"create_document\", arguments: creation },\n\t\t\t})),\n\t\t);\n\t\texpect(creationAttempt.error).toEqual({ code: -32601, message: \"tool not found\" });\n\t});\n\n\tit(\"rejects non-scalar JSON-RPC ids and scalar initialize or tools-list parameters\", async () => {\n\t\tlet mcp = endpoint();\n\t\tfor (\n\t\t\tlet [request_, id] of [\n\t\t\t\t[{ jsonrpc: \"2.0\", id: { invalid: true }, method: \"tools/list\" }, null],\n\t\t\t\t[{ jsonrpc: \"2.0\", id: 5, method: \"initialize\", params: \"invalid\" }, 5],\n\t\t\t\t[{ jsonrpc: \"2.0\", id: 6, method: \"tools/list\", params: 1 }, 6],\n\t\t\t]\n\t\t) {\n\t\t\texpect(await json(await mcp(request(request_)))).toEqual({\n\t\t\t\tjsonrpc: \"2.0\",\n\t\t\t\tid,\n\t\t\t\terror: { code: -32600, message: \"invalid request\" },\n\t\t\t});\n\t\t}\n\t});\n\n\tit(\"rejects malformed tool arguments and unknown tools without consulting the reader\", async () => {\n\t\tlet mcp = endpoint();\n\t\tfor (\n\t\t\tlet [id, name, arguments_, error] of [\n\t\t\t\t[5, \"list_documents\", { repository: \"./chopin\" }, \"list_documents requires a repository\"],\n\t\t\t\t[6, \"list_documents\", { repository: \"owner/..\" }, \"list_documents requires a repository\"],\n\t\t\t\t[7, \"read_document\", { id: \" \\t\" }, \"read_document requires an id\"],\n\t\t\t\t[9, \"read_document\", { id: \"x\".repeat(129) }, \"read_document requires an id\"],\n\t\t\t]\n\t\t) {\n\t\t\tlet invalid = await json(\n\t\t\t\tawait mcp(request({\n\t\t\t\t\tjsonrpc: \"2.0\",\n\t\t\t\t\tid,\n\t\t\t\t\tmethod: \"tools/call\",\n\t\t\t\t\tparams: { name, arguments: arguments_ },\n\t\t\t\t})),\n\t\t\t);\n\t\t\texpect(invalid.error).toEqual({ code: -32602, message: error });\n\t\t}\n\n\t\tlet unknown = await json(\n\t\t\tawait mcp(request({\n\t\t\t\tjsonrpc: \"2.0\",\n\t\t\t\tid: 8,\n\t\t\t\tmethod: \"tools/call\",\n\t\t\t\tparams: { name: \"write_document\", arguments: {} },\n\t\t\t})),\n\t\t);\n\t\texpect(unknown.error).toEqual({ code: -32601, message: \"tool not found\" });\n\t});\n\n\tit(\"counts read-document ids by JSON Schema characters\", async () => {\n\t\tlet boundary = await json(\n\t\t\tawait endpoint()(request({\n\t\t\t\tjsonrpc: \"2.0\",\n\t\t\t\tid: 10,\n\t\t\t\tmethod: \"tools/call\",\n\t\t\t\tparams: { name: \"read_document\", arguments: { id: \"😀\".repeat(128) } },\n\t\t\t})),\n\t\t);\n\n\t\texpect(boundary.error).toBeUndefined();\n\t\texpect(boundary.result).toEqual({ content: [], isError: true });\n\t});\n\n\tit(\"returns tool-level absence for a missing or inaccessible channel\", async () => {\n\t\tlet missing = await json(\n\t\t\tawait endpoint()(request({\n\t\t\t\tjsonrpc: \"2.0\",\n\t\t\t\tid: 7,\n\t\t\t\tmethod: \"tools/call\",\n\t\t\t\tparams: { name: \"read_document\", arguments: { id: \"missing\" } },\n\t\t\t})),\n\t\t);\n\t\tlet inaccessible = await json(\n\t\t\tawait handler({\n\t\t\t\tcaller: () => \"octocat\",\n\t\t\t\tcreate: unavailable(),\n\t\t\t\tdocuments: {\n\t\t\t\t\tasync list() {\n\t\t\t\t\t\treturn [];\n\t\t\t\t\t},\n\t\t\t\t\tasync read() {\n\t\t\t\t\t\treturn undefined;\n\t\t\t\t\t},\n\t\t\t\t},\n\t\t\t})(request({\n\t\t\t\tjsonrpc: \"2.0\",\n\t\t\t\tid: 8,\n\t\t\t\tmethod: \"tools/call\",\n\t\t\t\tparams: { name: \"read_document\", arguments: { id: document.id } },\n\t\t\t})),\n\t\t);\n\t\texpect(missing.result).toEqual({ content: [], isError: true });\n\t\texpect(inaccessible.result).toEqual(missing.result);\n\t});\n\n\tit(\"does not reply to notifications and rejects unknown methods\", async () => {\n\t\tlet mcp = endpoint();\n\t\tlet notification = await mcp(request({\n\t\t\tjsonrpc: \"2.0\",\n\t\t\tmethod: \"tools/call\",\n\t\t\tparams: { name: \"list_documents\", arguments: { repository: \"githubnext/chopin\" } },\n\t\t}));\n\t\texpect(notification.status).toBe(202);\n\t\texpect(await notification.text()).toBe(\"\");\n\n\t\tlet unknown = await json(\n\t\t\tawait mcp(request({\n\t\t\t\tjsonrpc: \"2.0\",\n\t\t\t\tid: 8,\n\t\t\t\tmethod: \"resources/list\",\n\t\t\t})),\n\t\t);\n\t\texpect(unknown.error).toEqual({ code: -32601, message: \"method not found\" });\n\t});\n\n\tit(\"negotiates authenticated GET event streams and refuses unsupported methods\", async () => {\n\t\tlet mcp = endpoint();\n\t\tlet stream = await mcp(\n\t\t\tnew Request(\"https://chopin.test/mcp\", {\n\t\t\t\theaders: { authorization: \"Bearer allowed\", accept: \"text/event-stream\" },\n\t\t\t}),\n\t\t);\n\t\texpect(stream.status).toBe(200);\n\t\texpect(stream.headers.get(\"content-type\")).toBe(\"text/event-stream\");\n\n\t\tlet unacceptable = await mcp(\n\t\t\tnew Request(\"https://chopin.test/mcp\", {\n\t\t\t\theaders: { authorization: \"Bearer allowed\", accept: \"application/json\" },\n\t\t\t}),\n\t\t);\n\t\texpect(unacceptable.status).toBe(406);\n\n\t\tlet unsupported = await mcp(\n\t\t\tnew Request(\"https://chopin.test/mcp\", {\n\t\t\t\tmethod: \"PUT\",\n\t\t\t\theaders: { authorization: \"Bearer allowed\" },\n\t\t\t}),\n\t\t);\n\t\texpect(unsupported.status).toBe(405);\n\t\texpect(unsupported.headers.get(\"allow\")).toBe(\"GET, POST\");\n\t});\n\n\tit(\"honors event-stream Accept quality values\", async () => {\n\t\tlet mcp = endpoint();\n\t\tfor (\n\t\t\tlet accept of [\n\t\t\t\t\"text/event-stream;q=0\",\n\t\t\t\t\"application/json, text/event-stream; q=0\",\n\t\t\t\t\"text/event-stream;q=0, */*;q=1\",\n\t\t\t\t\"*/*;q=0\",\n\t\t\t]\n\t\t) {\n\t\t\tlet response = await mcp(\n\t\t\t\tnew Request(\"https://chopin.test/mcp\", {\n\t\t\t\t\theaders: { authorization: \"Bearer allowed\", accept },\n\t\t\t\t}),\n\t\t\t);\n\t\t\texpect(response.status).toBe(406);\n\t\t}\n\n\t\tlet accepted = await mcp(\n\t\t\tnew Request(\"https://chopin.test/mcp\", {\n\t\t\t\theaders: { authorization: \"Bearer allowed\", accept: \"text/event-stream;q=0.25\" 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