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chore: support structured network #774

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Merged
OrKoN merged 1 commit into from
Jan 15, 2026
Merged

chore: support structured network #774

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6 changes: 3 additions & 3 deletions package-lock.json
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159 changes: 64 additions & 95 deletions src/McpResponse.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -10,13 +10,7 @@ import {
formatConsoleEventShort,
formatConsoleEventVerbose,
} from './formatters/consoleFormatter.js';
import {
getFormattedHeaderValue,
getFormattedResponseBody,
getFormattedRequestBody,
getShortDescriptionForRequest,
getStatusFromRequest,
} from './formatters/networkFormatter.js';
import {NetworkFormatter} from './formatters/NetworkFormatter.js';
import {SnapshotFormatter} from './formatters/SnapshotFormatter.js';
import type {McpContext} from './McpContext.js';
import {DevTools} from './third_party/index.js';
Expand Down Expand Up @@ -215,22 +209,17 @@ export class McpResponse implements Response {
}
}

const bodies: {
requestBody?: string;
responseBody?: string;
} = {};

let detailedNetworkRequest: NetworkFormatter | undefined;
if (this.#attachedNetworkRequestId) {
const request = context.getNetworkRequestById(
this.#attachedNetworkRequestId,
);

bodies.requestBody = await getFormattedRequestBody(request);

const response = request.response();
if (response) {
bodies.responseBody = await getFormattedResponseBody(response);
}
const formatter = await NetworkFormatter.from(request, {
requestId: this.#attachedNetworkRequestId,
requestIdResolver: req => context.getNetworkRequestStableId(req),
fetchData: true,
});
detailedNetworkRequest = formatter;
}

let consoleData: ConsoleMessageData | undefined;
Expand Down Expand Up @@ -341,25 +330,61 @@ export class McpResponse implements Response {
).filter(item => item !== null);
}

let networkRequests: NetworkFormatter[] | undefined;
if (this.#networkRequestsOptions?.include) {
let requests = context.getNetworkRequests(
this.#networkRequestsOptions?.includePreservedRequests,
);

// Apply resource type filtering if specified
if (this.#networkRequestsOptions.resourceTypes?.length) {
const normalizedTypes = new Set(
this.#networkRequestsOptions.resourceTypes,
);
requests = requests.filter(request => {
const type = request.resourceType();
return normalizedTypes.has(type);
});
}

if (requests.length) {
const data = this.#dataWithPagination(
requests,
this.#networkRequestsOptions.pagination,
);

networkRequests = await Promise.all(
data.items.map(request =>
NetworkFormatter.from(request, {
requestId: context.getNetworkRequestStableId(request),
selectedInDevToolsUI:
context.getNetworkRequestStableId(request) ===
this.#networkRequestsOptions?.networkRequestIdInDevToolsUI,
fetchData: false,
}),
),
);
}
}

return this.format(toolName, context, {
bodies,
consoleData,
consoleListData,
snapshot,
detailedNetworkRequest,
networkRequests,
});
}

format(
toolName: string,
context: McpContext,
data: {
bodies: {
requestBody?: string;
responseBody?: string;
};
consoleData: ConsoleMessageData | undefined;
consoleListData: ConsoleMessageData[] | undefined;
snapshot: SnapshotFormatter | string | undefined;
detailedNetworkRequest?: NetworkFormatter;
networkRequests?: NetworkFormatter[];
},
): {content: Array<TextContent | ImageContent>; structuredContent: object} {
const response = [`# ${toolName} response`];
Expand Down Expand Up @@ -407,6 +432,8 @@ Call ${handleDialog.name} to handle it before continuing.`);
snapshot?: object;
snapshotFilePath?: string;
tabId?: string;
networkRequest?: object;
networkRequests?: object[];
} = {};

if (this.#tabId) {
Expand All @@ -424,7 +451,11 @@ Call ${handleDialog.name} to handle it before continuing.`);
}
}

response.push(...this.#formatNetworkRequestData(context, data.bodies));
if (data.detailedNetworkRequest) {
response.push(data.detailedNetworkRequest.toStringDetailed());
structuredContent.networkRequest =
data.detailedNetworkRequest.toJSONDetailed();
}
response.push(...this.#formatConsoleData(context, data.consoleData));

if (this.#networkRequestsOptions?.include) {
Expand All @@ -445,20 +476,17 @@ Call ${handleDialog.name} to handle it before continuing.`);

response.push('## Network requests');
if (requests.length) {
const data = this.#dataWithPagination(
const paginationData = this.#dataWithPagination(
requests,
this.#networkRequestsOptions.pagination,
);
response.push(...data.info);
for (const request of data.items) {
response.push(
getShortDescriptionForRequest(
request,
context.getNetworkRequestStableId(request),
context.getNetworkRequestStableId(request) ===
this.#networkRequestsOptions?.networkRequestIdInDevToolsUI,
),
);
response.push(...paginationData.info);
if (data.networkRequests) {
structuredContent.networkRequests = [];
for (const formatter of data.networkRequests) {
response.push(formatter.toString());
structuredContent.networkRequests.push(formatter.toJSON());
}
}
} else {
response.push('No requests found.');
Expand Down Expand Up @@ -539,65 +567,6 @@ Call ${handleDialog.name} to handle it before continuing.`);
return response;
}

#formatNetworkRequestData(
context: McpContext,
data: {
requestBody?: string;
responseBody?: string;
},
): string[] {
const response: string[] = [];
const id = this.#attachedNetworkRequestId;
if (!id) {
return response;
}

const httpRequest = context.getNetworkRequestById(id);
response.push(`## Request ${httpRequest.url()}`);
response.push(`Status: ${getStatusFromRequest(httpRequest)}`);
response.push(`### Request Headers`);
for (const line of getFormattedHeaderValue(httpRequest.headers())) {
response.push(line);
}

if (data.requestBody) {
response.push(`### Request Body`);
response.push(data.requestBody);
}

const httpResponse = httpRequest.response();
if (httpResponse) {
response.push(`### Response Headers`);
for (const line of getFormattedHeaderValue(httpResponse.headers())) {
response.push(line);
}
}

if (data.responseBody) {
response.push(`### Response Body`);
response.push(data.responseBody);
}

const httpFailure = httpRequest.failure();
if (httpFailure) {
response.push(`### Request failed with`);
response.push(httpFailure.errorText);
}

const redirectChain = httpRequest.redirectChain();
if (redirectChain.length) {
response.push(`### Redirect chain`);
let indent = 0;
for (const request of redirectChain.reverse()) {
response.push(
`${' '.repeat(indent)}${getShortDescriptionForRequest(request, context.getNetworkRequestStableId(request))}`,
);
indent++;
}
}
return response;
}

resetResponseLineForTesting() {
this.#textResponseLines = [];
}
Expand Down
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