feat: add CloudWatch traces APIs for agent inspector#997

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Merged
avi-alpert merged 1 commit into from
Apr 29, 2026
Merged

feat: add CloudWatch traces APIs for agent inspector #997

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43 changes: 43 additions & 0 deletions src/cli/commands/dev/browser-mode.ts
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Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -9,6 +9,8 @@ import {
runWebUI,
} from '../../operations/dev/web-ui';
import { listMemoryRecords, retrieveMemoryRecords } from '../../operations/memory';
import { loadDeployedProjectConfig, resolveAgent } from '../../operations/resolve-agent';
import { fetchTraceRecords, listTraces } from '../../operations/traces';
import path from 'node:path';

interface DeployedHandlers {
Expand DownExpand Up@@ -192,6 +194,47 @@ export async function runBrowserMode(opts: BrowserModeOptions): Promise<void> {
? (agentNameParam, startTime, endTime) => collector.listTraces(agentNameParam, startTime, endTime)
: undefined,
onGetTrace: collector ? (agentNameParam, traceId) => collector.getTraceSpans(agentNameParam, traceId) : undefined,
onListCloudWatchTraces: async (agentName, _harnessName, startTime, endTime) => {
try {
const configIO = new ConfigIO({ baseDir });
const context = await loadDeployedProjectConfig(configIO);
const resolved = resolveAgent(context, { runtime: agentName });
if (!resolved.success) return { success: false, error: resolved.error };
return listTraces({
region: resolved.agent.region,
runtimeId: resolved.agent.runtimeId,
agentName: resolved.agent.agentName,
startTime,
endTime,
});
} catch (err) {
return {
success: false,
error: `Failed to list CloudWatch traces: ${err instanceof Error ? err.message : String(err)}`,
};
}
},
onGetCloudWatchTrace: async (agentName, _harnessName, traceId, startTime, endTime) => {
try {
const configIO = new ConfigIO({ baseDir });
const context = await loadDeployedProjectConfig(configIO);
const resolved = resolveAgent(context, { runtime: agentName });
if (!resolved.success) return { success: false, error: resolved.error };
return fetchTraceRecords({
region: resolved.agent.region,
runtimeId: resolved.agent.runtimeId,
traceId,
startTime,
endTime,
includeSpans: true,
});
} catch (err) {
return {
success: false,
error: `Failed to get CloudWatch trace: ${err instanceof Error ? err.message : String(err)}`,
};
}
},
onListMemoryRecords: async (memoryName, namespace, strategyId) => {
const deployed = await resolveDeployedHandlers(baseDir, onLog);
if (!deployed.onListMemoryRecords) return { success: false, error: 'No deployed AgentCore Memory found' };
Expand Down
233 changes: 233 additions & 0 deletions src/cli/operations/dev/web-ui/__tests__/cloudwatch-traces.test.ts
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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,233 @@
import { handleGetCloudWatchTrace, handleListCloudWatchTraces } from '../handlers/cloudwatch-traces.js';
import type { RouteContext } from '../handlers/route-context.js';
import type { IncomingMessage, ServerResponse } from 'http';
import { beforeEach, describe, expect, it, vi } from 'vitest';

function mockRes(): ServerResponse & { _status: number; _headers: Record<string, string>; _body: string } {
const res = {
_status: 0,
_headers: {} as Record<string, string>,
_body: '',
writeHead(status: number, headers?: Record<string, string>) {
res._status = status;
if (headers) Object.assign(res._headers, headers);
return res;
},
setHeader(name: string, value: string) {
res._headers[name] = value;
},
end(body?: string) {
if (body) res._body = body;
},
};
return res as unknown as ServerResponse & { _status: number; _headers: Record<string, string>; _body: string };
}

function mockReq(url: string): IncomingMessage {
return { url, headers: { host: 'localhost:8081' } } as unknown as IncomingMessage;
}

function mockCtx(overrides: Partial<RouteContext['options']> = {}): RouteContext {
return {
options: {
mode: 'dev',
agents: [],
harnesses: [],
uiPort: 8081,
...overrides,
},
runningAgents: new Map(),
startingAgents: new Map(),
agentErrors: new Map(),
setCorsHeaders: vi.fn(),
readBody: vi.fn(),
} as RouteContext;
}

describe('handleListCloudWatchTraces', () => {
beforeEach(() => {
vi.restoreAllMocks();
});

it('returns 404 when no handler configured', async () => {
const ctx = mockCtx();
const req = mockReq('/api/cloudwatch-traces?agentName=my-agent');
const res = mockRes();

await handleListCloudWatchTraces(ctx, req, res);

expect(res._status).toBe(404);
const body = JSON.parse(res._body);
expect(body.success).toBe(false);
expect(body.error).toContain('not available');
});

it('returns 400 when neither agentName nor harnessName provided', async () => {
const handler = vi.fn();
const ctx = mockCtx({ onListCloudWatchTraces: handler });
const req = mockReq('/api/cloudwatch-traces');
const res = mockRes();

await handleListCloudWatchTraces(ctx, req, res);

expect(res._status).toBe(400);
const body = JSON.parse(res._body);
expect(body.success).toBe(false);
expect(body.error).toContain('agentName');
expect(body.error).toContain('harnessName');
expect(handler).not.toHaveBeenCalled();
});

it('returns 400 when both agentName and harnessName provided', async () => {
const handler = vi.fn();
const ctx = mockCtx({ onListCloudWatchTraces: handler });
const req = mockReq('/api/cloudwatch-traces?agentName=a&harnessName=h');
const res = mockRes();

await handleListCloudWatchTraces(ctx, req, res);

expect(res._status).toBe(400);
const body = JSON.parse(res._body);
expect(body.success).toBe(false);
expect(body.error).toContain('agentName');
expect(body.error).toContain('harnessName');
expect(handler).not.toHaveBeenCalled();
});

it('calls handler with agentName and returns traces', async () => {
const traces = [{ traceId: 't1' }, { traceId: 't2' }];
const handler = vi.fn().mockResolvedValue({ success: true, traces });
const ctx = mockCtx({ onListCloudWatchTraces: handler });
const req = mockReq('/api/cloudwatch-traces?agentName=my-agent');
const res = mockRes();

await handleListCloudWatchTraces(ctx, req, res);

expect(res._status).toBe(200);
expect(handler).toHaveBeenCalledWith('my-agent', undefined, undefined, undefined);
const body = JSON.parse(res._body);
expect(body.success).toBe(true);
expect(body.traces).toEqual(traces);
});

it('calls handler with harnessName', async () => {
const handler = vi.fn().mockResolvedValue({ success: true, traces: [] });
const ctx = mockCtx({ onListCloudWatchTraces: handler });
const req = mockReq('/api/cloudwatch-traces?harnessName=my-harness');
const res = mockRes();

await handleListCloudWatchTraces(ctx, req, res);

expect(res._status).toBe(200);
expect(handler).toHaveBeenCalledWith(undefined, 'my-harness', undefined, undefined);
});

it('returns 500 when handler throws', async () => {
const handler = vi.fn().mockRejectedValue(new Error('boom'));
const ctx = mockCtx({ onListCloudWatchTraces: handler });
const req = mockReq('/api/cloudwatch-traces?agentName=my-agent');
const res = mockRes();

await handleListCloudWatchTraces(ctx, req, res);

expect(res._status).toBe(500);
const body = JSON.parse(res._body);
expect(body.success).toBe(false);
expect(body.error).toContain('Failed to list CloudWatch traces');
});

it('returns 400 for invalid startTime', async () => {
const handler = vi.fn();
const ctx = mockCtx({ onListCloudWatchTraces: handler });
const req = mockReq('/api/cloudwatch-traces?agentName=my-agent&startTime=notanumber');
const res = mockRes();

await handleListCloudWatchTraces(ctx, req, res);

expect(res._status).toBe(400);
const body = JSON.parse(res._body);
expect(body.success).toBe(false);
expect(body.error).toContain('startTime');
expect(handler).not.toHaveBeenCalled();
});
});

describe('handleGetCloudWatchTrace', () => {
beforeEach(() => {
vi.restoreAllMocks();
});

it('returns 404 when no handler configured', async () => {
const ctx = mockCtx();
const req = mockReq('/api/cloudwatch-traces/abc123?agentName=my-agent');
const res = mockRes();

await handleGetCloudWatchTrace(ctx, req, res);

expect(res._status).toBe(404);
const body = JSON.parse(res._body);
expect(body.success).toBe(false);
expect(body.error).toContain('not available');
});

it('returns 400 when traceId is missing', async () => {
const handler = vi.fn();
const ctx = mockCtx({ onGetCloudWatchTrace: handler });
const req = mockReq('/api/cloudwatch-traces/?agentName=my-agent');
const res = mockRes();

await handleGetCloudWatchTrace(ctx, req, res);

expect(res._status).toBe(400);
const body = JSON.parse(res._body);
expect(body.success).toBe(false);
expect(body.error).toContain('traceId');
expect(handler).not.toHaveBeenCalled();
});

it('returns 400 when neither agentName nor harnessName provided', async () => {
const handler = vi.fn();
const ctx = mockCtx({ onGetCloudWatchTrace: handler });
const req = mockReq('/api/cloudwatch-traces/abc123');
const res = mockRes();

await handleGetCloudWatchTrace(ctx, req, res);

expect(res._status).toBe(400);
const body = JSON.parse(res._body);
expect(body.success).toBe(false);
expect(body.error).toContain('agentName');
expect(body.error).toContain('harnessName');
expect(handler).not.toHaveBeenCalled();
});

it('returns 500 when handler throws', async () => {
const handler = vi.fn().mockRejectedValue(new Error('boom'));
const ctx = mockCtx({ onGetCloudWatchTrace: handler });
const req = mockReq('/api/cloudwatch-traces/abc123?agentName=my-agent');
const res = mockRes();

await handleGetCloudWatchTrace(ctx, req, res);

expect(res._status).toBe(500);
const body = JSON.parse(res._body);
expect(body.success).toBe(false);
expect(body.error).toContain('Failed to get CloudWatch trace');
});

it('calls handler and returns records', async () => {
const records = [{ record: 'data1' }];
const handler = vi.fn().mockResolvedValue({ success: true, records });
const ctx = mockCtx({ onGetCloudWatchTrace: handler });
const req = mockReq('/api/cloudwatch-traces/abc123?agentName=my-agent');
const res = mockRes();

await handleGetCloudWatchTrace(ctx, req, res);

expect(res._status).toBe(200);
expect(handler).toHaveBeenCalledWith('my-agent', undefined, 'abc123', undefined, undefined);
const body = JSON.parse(res._body);
expect(body.success).toBe(true);
expect(body.records).toEqual(records);
});
});
34 changes: 34 additions & 0 deletions src/cli/operations/dev/web-ui/api-types.ts
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Original file line numberDiff line numberDiff line change
Expand Up@@ -8,6 +8,7 @@
* TODO: Extract these types into a shared package so both repos import
* from a single source of truth instead of manually duplicating.
*/
import type { CloudWatchSpanRecord, CloudWatchTraceRecord } from '../../traces/types';

// ---------------------------------------------------------------------------
// GET /api/status
Expand DownExpand Up@@ -279,6 +280,39 @@ export interface GetTraceResponse {
error?: string;
}

// ---------------------------------------------------------------------------
// GET /api/cloudwatch-traces?agentName=xxx|harnessName=xxx
// ---------------------------------------------------------------------------

/** A single trace entry returned by the CloudWatch traces list endpoint */
export interface CloudWatchTraceEntry {
traceId: string;
timestamp: string;
sessionId?: string;
spanCount?: string;
}

/** Response shape for GET /api/cloudwatch-traces */
export interface ListCloudWatchTracesResponse {
success: boolean;
traces?: CloudWatchTraceEntry[];
error?: string;
}

// ---------------------------------------------------------------------------
// GET /api/cloudwatch-traces/:traceId?agentName=xxx|harnessName=xxx
// ---------------------------------------------------------------------------

/** Response shape for GET /api/cloudwatch-traces/:traceId */
export interface GetCloudWatchTraceResponse {
success: boolean;
records?: CloudWatchTraceRecord[];
spans?: CloudWatchSpanRecord[];
error?: string;
}

export type { CloudWatchTraceRecord, CloudWatchSpanRecord } from '../../traces/types';

// ---------------------------------------------------------------------------
// GET /api/memory?memoryName=xxx&namespace=yyy[&strategyId=zzz]
// ---------------------------------------------------------------------------
Expand Down
Loading
Loading
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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feat: add CloudWatch traces APIs for agent inspector#997

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privacy statement. We’ll occasionally send you account related emails.

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to your account

 Merged

avi-alpert
merged 1 commit into

from

Apr 29, 2026
 Merged


feat: add CloudWatch traces APIs for agent inspector
#997
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43 changes: 43 additions & 0 deletions
src/cli/commands/dev/browser-mode.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -9,6 +9,8 @@ import {
 runWebUI,
} from '../../operations/dev/web-ui';
import { listMemoryRecords, retrieveMemoryRecords } from '../../operations/memory';
import { loadDeployedProjectConfig, resolveAgent } from '../../operations/resolve-agent';
import { fetchTraceRecords, listTraces } from '../../operations/traces';
import path from 'node:path';

interface DeployedHandlers {
Expand DownExpand Up@@ -192,6 +194,47 @@ export async function runBrowserMode(opts: BrowserModeOptions): Promise<void> {
 ? (agentNameParam, startTime, endTime) => collector.listTraces(agentNameParam, startTime, endTime)
 : undefined,
 onGetTrace: collector ? (agentNameParam, traceId) => collector.getTraceSpans(agentNameParam, traceId) : undefined,
 onListCloudWatchTraces: async (agentName, _harnessName, startTime, endTime) => {
 try {
 const configIO = new ConfigIO({ baseDir });
 const context = await loadDeployedProjectConfig(configIO);
 const resolved = resolveAgent(context, { runtime: agentName });
 if (!resolved.success) return { success: false, error: resolved.error };
 return listTraces({
 region: resolved.agent.region,
 runtimeId: resolved.agent.runtimeId,
 agentName: resolved.agent.agentName,
 startTime,
 endTime,
 });
 } catch (err) {
 return {
 success: false,
 error: `Failed to list CloudWatch traces: ${err instanceof Error ? err.message : String(err)}`,
 };
 }
 },
 onGetCloudWatchTrace: async (agentName, _harnessName, traceId, startTime, endTime) => {
 try {
 const configIO = new ConfigIO({ baseDir });
 const context = await loadDeployedProjectConfig(configIO);
 const resolved = resolveAgent(context, { runtime: agentName });
 if (!resolved.success) return { success: false, error: resolved.error };
 return fetchTraceRecords({
 region: resolved.agent.region,
 runtimeId: resolved.agent.runtimeId,
 traceId,
 startTime,
 endTime,
 includeSpans: true,
 });
 } catch (err) {
 return {
 success: false,
 error: `Failed to get CloudWatch trace: ${err instanceof Error ? err.message : String(err)}`,
 };
 }
 },
 onListMemoryRecords: async (memoryName, namespace, strategyId) => {
 const deployed = await resolveDeployedHandlers(baseDir, onLog);
 if (!deployed.onListMemoryRecords) return { success: false, error: 'No deployed AgentCore Memory found' };
Expand Down

233 changes: 233 additions & 0 deletions
src/cli/operations/dev/web-ui/__tests__/cloudwatch-traces.test.ts

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,233 @@
import { handleGetCloudWatchTrace, handleListCloudWatchTraces } from '../handlers/cloudwatch-traces.js';
import type { RouteContext } from '../handlers/route-context.js';
import type { IncomingMessage, ServerResponse } from 'http';
import { beforeEach, describe, expect, it, vi } from 'vitest';

function mockRes(): ServerResponse & { _status: number; _headers: Record<string, string>; _body: string } {
 const res = {
 _status: 0,
 _headers: {} as Record<string, string>,
 _body: '',
 writeHead(status: number, headers?: Record<string, string>) {
 res._status = status;
 if (headers) Object.assign(res._headers, headers);
 return res;
 },
 setHeader(name: string, value: string) {
 res._headers[name] = value;
 },
 end(body?: string) {
 if (body) res._body = body;
 },
 };
 return res as unknown as ServerResponse & { _status: number; _headers: Record<string, string>; _body: string };
}

function mockReq(url: string): IncomingMessage {
 return { url, headers: { host: 'localhost:8081' } } as unknown as IncomingMessage;
}

function mockCtx(overrides: Partial<RouteContext['options']> = {}): RouteContext {
 return {
 options: {
 mode: 'dev',
 agents: [],
 harnesses: [],
 uiPort: 8081,
 ...overrides,
 },
 runningAgents: new Map(),
 startingAgents: new Map(),
 agentErrors: new Map(),
 setCorsHeaders: vi.fn(),
 readBody: vi.fn(),
 } as RouteContext;
}

describe('handleListCloudWatchTraces', () => {
 beforeEach(() => {
 vi.restoreAllMocks();
 });

 it('returns 404 when no handler configured', async () => {
 const ctx = mockCtx();
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(404);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('not available');
 });

 it('returns 400 when neither agentName nor harnessName provided', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('agentName');
 expect(body.error).toContain('harnessName');
 expect(handler).not.toHaveBeenCalled();
 });

 it('returns 400 when both agentName and harnessName provided', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=a&harnessName=h');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('agentName');
 expect(body.error).toContain('harnessName');
 expect(handler).not.toHaveBeenCalled();
 });

 it('calls handler with agentName and returns traces', async () => {
 const traces = [{ traceId: 't1' }, { traceId: 't2' }];
 const handler = vi.fn().mockResolvedValue({ success: true, traces });
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(200);
 expect(handler).toHaveBeenCalledWith('my-agent', undefined, undefined, undefined);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(true);
 expect(body.traces).toEqual(traces);
 });

 it('calls handler with harnessName', async () => {
 const handler = vi.fn().mockResolvedValue({ success: true, traces: [] });
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?harnessName=my-harness');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(200);
 expect(handler).toHaveBeenCalledWith(undefined, 'my-harness', undefined, undefined);
 });

 it('returns 500 when handler throws', async () => {
 const handler = vi.fn().mockRejectedValue(new Error('boom'));
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(500);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('Failed to list CloudWatch traces');
 });

 it('returns 400 for invalid startTime', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent&startTime=notanumber');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('startTime');
 expect(handler).not.toHaveBeenCalled();
 });
});

describe('handleGetCloudWatchTrace', () => {
 beforeEach(() => {
 vi.restoreAllMocks();
 });

 it('returns 404 when no handler configured', async () => {
 const ctx = mockCtx();
 const req = mockReq('/api/cloudwatch-traces/abc123?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(404);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('not available');
 });

 it('returns 400 when traceId is missing', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('traceId');
 expect(handler).not.toHaveBeenCalled();
 });

 it('returns 400 when neither agentName nor harnessName provided', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/abc123');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('agentName');
 expect(body.error).toContain('harnessName');
 expect(handler).not.toHaveBeenCalled();
 });

 it('returns 500 when handler throws', async () => {
 const handler = vi.fn().mockRejectedValue(new Error('boom'));
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/abc123?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(500);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('Failed to get CloudWatch trace');
 });

 it('calls handler and returns records', async () => {
 const records = [{ record: 'data1' }];
 const handler = vi.fn().mockResolvedValue({ success: true, records });
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/abc123?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(200);
 expect(handler).toHaveBeenCalledWith('my-agent', undefined, 'abc123', undefined, undefined);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(true);
 expect(body.records).toEqual(records);
 });
});

34 changes: 34 additions & 0 deletions
src/cli/operations/dev/web-ui/api-types.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -8,6 +8,7 @@
 * TODO: Extract these types into a shared package so both repos import
 * from a single source of truth instead of manually duplicating.
 */
import type { CloudWatchSpanRecord, CloudWatchTraceRecord } from '../../traces/types';

// ---------------------------------------------------------------------------
// GET /api/status
Expand DownExpand Up@@ -279,6 +280,39 @@ export interface GetTraceResponse {
 error?: string;
}

// ---------------------------------------------------------------------------
// GET /api/cloudwatch-traces?agentName=xxx|harnessName=xxx
// ---------------------------------------------------------------------------

/** A single trace entry returned by the CloudWatch traces list endpoint */
export interface CloudWatchTraceEntry {
 traceId: string;
 timestamp: string;
 sessionId?: string;
 spanCount?: string;
}

/** Response shape for GET /api/cloudwatch-traces */
export interface ListCloudWatchTracesResponse {
 success: boolean;
 traces?: CloudWatchTraceEntry[];
 error?: string;
}

// ---------------------------------------------------------------------------
// GET /api/cloudwatch-traces/:traceId?agentName=xxx|harnessName=xxx
// ---------------------------------------------------------------------------

/** Response shape for GET /api/cloudwatch-traces/:traceId */
export interface GetCloudWatchTraceResponse {
 success: boolean;
 records?: CloudWatchTraceRecord[];
 spans?: CloudWatchSpanRecord[];
 error?: string;
}

export type { CloudWatchTraceRecord, CloudWatchSpanRecord } from '../../traces/types';

// ---------------------------------------------------------------------------
// GET /api/memory?memoryName=xxx&namespace=yyy[&strategyId=zzz]
// ---------------------------------------------------------------------------
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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feat: add CloudWatch traces APIs for agent inspector#997

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 Merged

avi-alpert
merged 1 commit into

from

Apr 29, 2026
 Merged


feat: add CloudWatch traces APIs for agent inspector
#997
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43 changes: 43 additions & 0 deletions
src/cli/commands/dev/browser-mode.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -9,6 +9,8 @@ import {
 runWebUI,
} from '../../operations/dev/web-ui';
import { listMemoryRecords, retrieveMemoryRecords } from '../../operations/memory';
import { loadDeployedProjectConfig, resolveAgent } from '../../operations/resolve-agent';
import { fetchTraceRecords, listTraces } from '../../operations/traces';
import path from 'node:path';

interface DeployedHandlers {
Expand DownExpand Up@@ -192,6 +194,47 @@ export async function runBrowserMode(opts: BrowserModeOptions): Promise<void> {
 ? (agentNameParam, startTime, endTime) => collector.listTraces(agentNameParam, startTime, endTime)
 : undefined,
 onGetTrace: collector ? (agentNameParam, traceId) => collector.getTraceSpans(agentNameParam, traceId) : undefined,
 onListCloudWatchTraces: async (agentName, _harnessName, startTime, endTime) => {
 try {
 const configIO = new ConfigIO({ baseDir });
 const context = await loadDeployedProjectConfig(configIO);
 const resolved = resolveAgent(context, { runtime: agentName });
 if (!resolved.success) return { success: false, error: resolved.error };
 return listTraces({
 region: resolved.agent.region,
 runtimeId: resolved.agent.runtimeId,
 agentName: resolved.agent.agentName,
 startTime,
 endTime,
 });
 } catch (err) {
 return {
 success: false,
 error: `Failed to list CloudWatch traces: ${err instanceof Error ? err.message : String(err)}`,
 };
 }
 },
 onGetCloudWatchTrace: async (agentName, _harnessName, traceId, startTime, endTime) => {
 try {
 const configIO = new ConfigIO({ baseDir });
 const context = await loadDeployedProjectConfig(configIO);
 const resolved = resolveAgent(context, { runtime: agentName });
 if (!resolved.success) return { success: false, error: resolved.error };
 return fetchTraceRecords({
 region: resolved.agent.region,
 runtimeId: resolved.agent.runtimeId,
 traceId,
 startTime,
 endTime,
 includeSpans: true,
 });
 } catch (err) {
 return {
 success: false,
 error: `Failed to get CloudWatch trace: ${err instanceof Error ? err.message : String(err)}`,
 };
 }
 },
 onListMemoryRecords: async (memoryName, namespace, strategyId) => {
 const deployed = await resolveDeployedHandlers(baseDir, onLog);
 if (!deployed.onListMemoryRecords) return { success: false, error: 'No deployed AgentCore Memory found' };
Expand Down

233 changes: 233 additions & 0 deletions
src/cli/operations/dev/web-ui/__tests__/cloudwatch-traces.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,233 @@
import { handleGetCloudWatchTrace, handleListCloudWatchTraces } from '../handlers/cloudwatch-traces.js';
import type { RouteContext } from '../handlers/route-context.js';
import type { IncomingMessage, ServerResponse } from 'http';
import { beforeEach, describe, expect, it, vi } from 'vitest';

function mockRes(): ServerResponse & { _status: number; _headers: Record<string, string>; _body: string } {
 const res = {
 _status: 0,
 _headers: {} as Record<string, string>,
 _body: '',
 writeHead(status: number, headers?: Record<string, string>) {
 res._status = status;
 if (headers) Object.assign(res._headers, headers);
 return res;
 },
 setHeader(name: string, value: string) {
 res._headers[name] = value;
 },
 end(body?: string) {
 if (body) res._body = body;
 },
 };
 return res as unknown as ServerResponse & { _status: number; _headers: Record<string, string>; _body: string };
}

function mockReq(url: string): IncomingMessage {
 return { url, headers: { host: 'localhost:8081' } } as unknown as IncomingMessage;
}

function mockCtx(overrides: Partial<RouteContext['options']> = {}): RouteContext {
 return {
 options: {
 mode: 'dev',
 agents: [],
 harnesses: [],
 uiPort: 8081,
 ...overrides,
 },
 runningAgents: new Map(),
 startingAgents: new Map(),
 agentErrors: new Map(),
 setCorsHeaders: vi.fn(),
 readBody: vi.fn(),
 } as RouteContext;
}

describe('handleListCloudWatchTraces', () => {
 beforeEach(() => {
 vi.restoreAllMocks();
 });

 it('returns 404 when no handler configured', async () => {
 const ctx = mockCtx();
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(404);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('not available');
 });

 it('returns 400 when neither agentName nor harnessName provided', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('agentName');
 expect(body.error).toContain('harnessName');
 expect(handler).not.toHaveBeenCalled();
 });

 it('returns 400 when both agentName and harnessName provided', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=a&harnessName=h');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('agentName');
 expect(body.error).toContain('harnessName');
 expect(handler).not.toHaveBeenCalled();
 });

 it('calls handler with agentName and returns traces', async () => {
 const traces = [{ traceId: 't1' }, { traceId: 't2' }];
 const handler = vi.fn().mockResolvedValue({ success: true, traces });
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(200);
 expect(handler).toHaveBeenCalledWith('my-agent', undefined, undefined, undefined);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(true);
 expect(body.traces).toEqual(traces);
 });

 it('calls handler with harnessName', async () => {
 const handler = vi.fn().mockResolvedValue({ success: true, traces: [] });
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?harnessName=my-harness');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(200);
 expect(handler).toHaveBeenCalledWith(undefined, 'my-harness', undefined, undefined);
 });

 it('returns 500 when handler throws', async () => {
 const handler = vi.fn().mockRejectedValue(new Error('boom'));
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(500);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('Failed to list CloudWatch traces');
 });

 it('returns 400 for invalid startTime', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent&startTime=notanumber');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('startTime');
 expect(handler).not.toHaveBeenCalled();
 });
});

describe('handleGetCloudWatchTrace', () => {
 beforeEach(() => {
 vi.restoreAllMocks();
 });

 it('returns 404 when no handler configured', async () => {
 const ctx = mockCtx();
 const req = mockReq('/api/cloudwatch-traces/abc123?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(404);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('not available');
 });

 it('returns 400 when traceId is missing', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('traceId');
 expect(handler).not.toHaveBeenCalled();
 });

 it('returns 400 when neither agentName nor harnessName provided', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/abc123');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('agentName');
 expect(body.error).toContain('harnessName');
 expect(handler).not.toHaveBeenCalled();
 });

 it('returns 500 when handler throws', async () => {
 const handler = vi.fn().mockRejectedValue(new Error('boom'));
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/abc123?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(500);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('Failed to get CloudWatch trace');
 });

 it('calls handler and returns records', async () => {
 const records = [{ record: 'data1' }];
 const handler = vi.fn().mockResolvedValue({ success: true, records });
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/abc123?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(200);
 expect(handler).toHaveBeenCalledWith('my-agent', undefined, 'abc123', undefined, undefined);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(true);
 expect(body.records).toEqual(records);
 });
});

34 changes: 34 additions & 0 deletions
src/cli/operations/dev/web-ui/api-types.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -8,6 +8,7 @@
 * TODO: Extract these types into a shared package so both repos import
 * from a single source of truth instead of manually duplicating.
 */
import type { CloudWatchSpanRecord, CloudWatchTraceRecord } from '../../traces/types';

// ---------------------------------------------------------------------------
// GET /api/status
Expand DownExpand Up@@ -279,6 +280,39 @@ export interface GetTraceResponse {
 error?: string;
}

// ---------------------------------------------------------------------------
// GET /api/cloudwatch-traces?agentName=xxx|harnessName=xxx
// ---------------------------------------------------------------------------

/** A single trace entry returned by the CloudWatch traces list endpoint */
export interface CloudWatchTraceEntry {
 traceId: string;
 timestamp: string;
 sessionId?: string;
 spanCount?: string;
}

/** Response shape for GET /api/cloudwatch-traces */
export interface ListCloudWatchTracesResponse {
 success: boolean;
 traces?: CloudWatchTraceEntry[];
 error?: string;
}

// ---------------------------------------------------------------------------
// GET /api/cloudwatch-traces/:traceId?agentName=xxx|harnessName=xxx
// ---------------------------------------------------------------------------

/** Response shape for GET /api/cloudwatch-traces/:traceId */
export interface GetCloudWatchTraceResponse {
 success: boolean;
 records?: CloudWatchTraceRecord[];
 spans?: CloudWatchSpanRecord[];
 error?: string;
}

export type { CloudWatchTraceRecord, CloudWatchSpanRecord } from '../../traces/types';

// ---------------------------------------------------------------------------
// GET /api/memory?memoryName=xxx&namespace=yyy[&strategyId=zzz]
// ---------------------------------------------------------------------------
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
feat: add CloudWatch traces APIs for agent inspector#997

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Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

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Sign in
to your account

 Merged

avi-alpert
merged 1 commit into

from

Apr 29, 2026
 Merged


feat: add CloudWatch traces APIs for agent inspector
#997
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43 changes: 43 additions & 0 deletions
src/cli/commands/dev/browser-mode.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -9,6 +9,8 @@ import {
 runWebUI,
} from '../../operations/dev/web-ui';
import { listMemoryRecords, retrieveMemoryRecords } from '../../operations/memory';
import { loadDeployedProjectConfig, resolveAgent } from '../../operations/resolve-agent';
import { fetchTraceRecords, listTraces } from '../../operations/traces';
import path from 'node:path';

interface DeployedHandlers {
Expand DownExpand Up@@ -192,6 +194,47 @@ export async function runBrowserMode(opts: BrowserModeOptions): Promise<void> {
 ? (agentNameParam, startTime, endTime) => collector.listTraces(agentNameParam, startTime, endTime)
 : undefined,
 onGetTrace: collector ? (agentNameParam, traceId) => collector.getTraceSpans(agentNameParam, traceId) : undefined,
 onListCloudWatchTraces: async (agentName, _harnessName, startTime, endTime) => {
 try {
 const configIO = new ConfigIO({ baseDir });
 const context = await loadDeployedProjectConfig(configIO);
 const resolved = resolveAgent(context, { runtime: agentName });
 if (!resolved.success) return { success: false, error: resolved.error };
 return listTraces({
 region: resolved.agent.region,
 runtimeId: resolved.agent.runtimeId,
 agentName: resolved.agent.agentName,
 startTime,
 endTime,
 });
 } catch (err) {
 return {
 success: false,
 error: `Failed to list CloudWatch traces: ${err instanceof Error ? err.message : String(err)}`,
 };
 }
 },
 onGetCloudWatchTrace: async (agentName, _harnessName, traceId, startTime, endTime) => {
 try {
 const configIO = new ConfigIO({ baseDir });
 const context = await loadDeployedProjectConfig(configIO);
 const resolved = resolveAgent(context, { runtime: agentName });
 if (!resolved.success) return { success: false, error: resolved.error };
 return fetchTraceRecords({
 region: resolved.agent.region,
 runtimeId: resolved.agent.runtimeId,
 traceId,
 startTime,
 endTime,
 includeSpans: true,
 });
 } catch (err) {
 return {
 success: false,
 error: `Failed to get CloudWatch trace: ${err instanceof Error ? err.message : String(err)}`,
 };
 }
 },
 onListMemoryRecords: async (memoryName, namespace, strategyId) => {
 const deployed = await resolveDeployedHandlers(baseDir, onLog);
 if (!deployed.onListMemoryRecords) return { success: false, error: 'No deployed AgentCore Memory found' };
Expand Down

233 changes: 233 additions & 0 deletions
src/cli/operations/dev/web-ui/__tests__/cloudwatch-traces.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,233 @@
import { handleGetCloudWatchTrace, handleListCloudWatchTraces } from '../handlers/cloudwatch-traces.js';
import type { RouteContext } from '../handlers/route-context.js';
import type { IncomingMessage, ServerResponse } from 'http';
import { beforeEach, describe, expect, it, vi } from 'vitest';

function mockRes(): ServerResponse & { _status: number; _headers: Record<string, string>; _body: string } {
 const res = {
 _status: 0,
 _headers: {} as Record<string, string>,
 _body: '',
 writeHead(status: number, headers?: Record<string, string>) {
 res._status = status;
 if (headers) Object.assign(res._headers, headers);
 return res;
 },
 setHeader(name: string, value: string) {
 res._headers[name] = value;
 },
 end(body?: string) {
 if (body) res._body = body;
 },
 };
 return res as unknown as ServerResponse & { _status: number; _headers: Record<string, string>; _body: string };
}

function mockReq(url: string): IncomingMessage {
 return { url, headers: { host: 'localhost:8081' } } as unknown as IncomingMessage;
}

function mockCtx(overrides: Partial<RouteContext['options']> = {}): RouteContext {
 return {
 options: {
 mode: 'dev',
 agents: [],
 harnesses: [],
 uiPort: 8081,
 ...overrides,
 },
 runningAgents: new Map(),
 startingAgents: new Map(),
 agentErrors: new Map(),
 setCorsHeaders: vi.fn(),
 readBody: vi.fn(),
 } as RouteContext;
}

describe('handleListCloudWatchTraces', () => {
 beforeEach(() => {
 vi.restoreAllMocks();
 });

 it('returns 404 when no handler configured', async () => {
 const ctx = mockCtx();
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(404);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('not available');
 });

 it('returns 400 when neither agentName nor harnessName provided', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('agentName');
 expect(body.error).toContain('harnessName');
 expect(handler).not.toHaveBeenCalled();
 });

 it('returns 400 when both agentName and harnessName provided', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=a&harnessName=h');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('agentName');
 expect(body.error).toContain('harnessName');
 expect(handler).not.toHaveBeenCalled();
 });

 it('calls handler with agentName and returns traces', async () => {
 const traces = [{ traceId: 't1' }, { traceId: 't2' }];
 const handler = vi.fn().mockResolvedValue({ success: true, traces });
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(200);
 expect(handler).toHaveBeenCalledWith('my-agent', undefined, undefined, undefined);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(true);
 expect(body.traces).toEqual(traces);
 });

 it('calls handler with harnessName', async () => {
 const handler = vi.fn().mockResolvedValue({ success: true, traces: [] });
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?harnessName=my-harness');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(200);
 expect(handler).toHaveBeenCalledWith(undefined, 'my-harness', undefined, undefined);
 });

 it('returns 500 when handler throws', async () => {
 const handler = vi.fn().mockRejectedValue(new Error('boom'));
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(500);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('Failed to list CloudWatch traces');
 });

 it('returns 400 for invalid startTime', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent&startTime=notanumber');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('startTime');
 expect(handler).not.toHaveBeenCalled();
 });
});

describe('handleGetCloudWatchTrace', () => {
 beforeEach(() => {
 vi.restoreAllMocks();
 });

 it('returns 404 when no handler configured', async () => {
 const ctx = mockCtx();
 const req = mockReq('/api/cloudwatch-traces/abc123?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(404);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('not available');
 });

 it('returns 400 when traceId is missing', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('traceId');
 expect(handler).not.toHaveBeenCalled();
 });

 it('returns 400 when neither agentName nor harnessName provided', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/abc123');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('agentName');
 expect(body.error).toContain('harnessName');
 expect(handler).not.toHaveBeenCalled();
 });

 it('returns 500 when handler throws', async () => {
 const handler = vi.fn().mockRejectedValue(new Error('boom'));
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/abc123?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(500);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('Failed to get CloudWatch trace');
 });

 it('calls handler and returns records', async () => {
 const records = [{ record: 'data1' }];
 const handler = vi.fn().mockResolvedValue({ success: true, records });
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/abc123?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(200);
 expect(handler).toHaveBeenCalledWith('my-agent', undefined, 'abc123', undefined, undefined);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(true);
 expect(body.records).toEqual(records);
 });
});

34 changes: 34 additions & 0 deletions
src/cli/operations/dev/web-ui/api-types.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -8,6 +8,7 @@
 * TODO: Extract these types into a shared package so both repos import
 * from a single source of truth instead of manually duplicating.
 */
import type { CloudWatchSpanRecord, CloudWatchTraceRecord } from '../../traces/types';

// ---------------------------------------------------------------------------
// GET /api/status
Expand DownExpand Up@@ -279,6 +280,39 @@ export interface GetTraceResponse {
 error?: string;
}

// ---------------------------------------------------------------------------
// GET /api/cloudwatch-traces?agentName=xxx|harnessName=xxx
// ---------------------------------------------------------------------------

/** A single trace entry returned by the CloudWatch traces list endpoint */
export interface CloudWatchTraceEntry {
 traceId: string;
 timestamp: string;
 sessionId?: string;
 spanCount?: string;
}

/** Response shape for GET /api/cloudwatch-traces */
export interface ListCloudWatchTracesResponse {
 success: boolean;
 traces?: CloudWatchTraceEntry[];
 error?: string;
}

// ---------------------------------------------------------------------------
// GET /api/cloudwatch-traces/:traceId?agentName=xxx|harnessName=xxx
// ---------------------------------------------------------------------------

/** Response shape for GET /api/cloudwatch-traces/:traceId */
export interface GetCloudWatchTraceResponse {
 success: boolean;
 records?: CloudWatchTraceRecord[];
 spans?: CloudWatchSpanRecord[];
 error?: string;
}

export type { CloudWatchTraceRecord, CloudWatchSpanRecord } from '../../traces/types';

// ---------------------------------------------------------------------------
// GET /api/memory?memoryName=xxx&namespace=yyy[&strategyId=zzz]
// ---------------------------------------------------------------------------
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

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feat: add CloudWatch traces APIs for agent inspector#997

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 Merged

avi-alpert
merged 1 commit into

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Apr 29, 2026
 Merged


feat: add CloudWatch traces APIs for agent inspector
#997
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43 changes: 43 additions & 0 deletions
src/cli/commands/dev/browser-mode.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -9,6 +9,8 @@ import {
 runWebUI,
} from '../../operations/dev/web-ui';
import { listMemoryRecords, retrieveMemoryRecords } from '../../operations/memory';
import { loadDeployedProjectConfig, resolveAgent } from '../../operations/resolve-agent';
import { fetchTraceRecords, listTraces } from '../../operations/traces';
import path from 'node:path';

interface DeployedHandlers {
Expand DownExpand Up@@ -192,6 +194,47 @@ export async function runBrowserMode(opts: BrowserModeOptions): Promise<void> {
 ? (agentNameParam, startTime, endTime) => collector.listTraces(agentNameParam, startTime, endTime)
 : undefined,
 onGetTrace: collector ? (agentNameParam, traceId) => collector.getTraceSpans(agentNameParam, traceId) : undefined,
 onListCloudWatchTraces: async (agentName, _harnessName, startTime, endTime) => {
 try {
 const configIO = new ConfigIO({ baseDir });
 const context = await loadDeployedProjectConfig(configIO);
 const resolved = resolveAgent(context, { runtime: agentName });
 if (!resolved.success) return { success: false, error: resolved.error };
 return listTraces({
 region: resolved.agent.region,
 runtimeId: resolved.agent.runtimeId,
 agentName: resolved.agent.agentName,
 startTime,
 endTime,
 });
 } catch (err) {
 return {
 success: false,
 error: `Failed to list CloudWatch traces: ${err instanceof Error ? err.message : String(err)}`,
 };
 }
 },
 onGetCloudWatchTrace: async (agentName, _harnessName, traceId, startTime, endTime) => {
 try {
 const configIO = new ConfigIO({ baseDir });
 const context = await loadDeployedProjectConfig(configIO);
 const resolved = resolveAgent(context, { runtime: agentName });
 if (!resolved.success) return { success: false, error: resolved.error };
 return fetchTraceRecords({
 region: resolved.agent.region,
 runtimeId: resolved.agent.runtimeId,
 traceId,
 startTime,
 endTime,
 includeSpans: true,
 });
 } catch (err) {
 return {
 success: false,
 error: `Failed to get CloudWatch trace: ${err instanceof Error ? err.message : String(err)}`,
 };
 }
 },
 onListMemoryRecords: async (memoryName, namespace, strategyId) => {
 const deployed = await resolveDeployedHandlers(baseDir, onLog);
 if (!deployed.onListMemoryRecords) return { success: false, error: 'No deployed AgentCore Memory found' };
Expand Down

233 changes: 233 additions & 0 deletions
src/cli/operations/dev/web-ui/__tests__/cloudwatch-traces.test.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,233 @@
import { handleGetCloudWatchTrace, handleListCloudWatchTraces } from '../handlers/cloudwatch-traces.js';
import type { RouteContext } from '../handlers/route-context.js';
import type { IncomingMessage, ServerResponse } from 'http';
import { beforeEach, describe, expect, it, vi } from 'vitest';

function mockRes(): ServerResponse & { _status: number; _headers: Record<string, string>; _body: string } {
 const res = {
 _status: 0,
 _headers: {} as Record<string, string>,
 _body: '',
 writeHead(status: number, headers?: Record<string, string>) {
 res._status = status;
 if (headers) Object.assign(res._headers, headers);
 return res;
 },
 setHeader(name: string, value: string) {
 res._headers[name] = value;
 },
 end(body?: string) {
 if (body) res._body = body;
 },
 };
 return res as unknown as ServerResponse & { _status: number; _headers: Record<string, string>; _body: string };
}

function mockReq(url: string): IncomingMessage {
 return { url, headers: { host: 'localhost:8081' } } as unknown as IncomingMessage;
}

function mockCtx(overrides: Partial<RouteContext['options']> = {}): RouteContext {
 return {
 options: {
 mode: 'dev',
 agents: [],
 harnesses: [],
 uiPort: 8081,
 ...overrides,
 },
 runningAgents: new Map(),
 startingAgents: new Map(),
 agentErrors: new Map(),
 setCorsHeaders: vi.fn(),
 readBody: vi.fn(),
 } as RouteContext;
}

describe('handleListCloudWatchTraces', () => {
 beforeEach(() => {
 vi.restoreAllMocks();
 });

 it('returns 404 when no handler configured', async () => {
 const ctx = mockCtx();
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(404);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('not available');
 });

 it('returns 400 when neither agentName nor harnessName provided', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('agentName');
 expect(body.error).toContain('harnessName');
 expect(handler).not.toHaveBeenCalled();
 });

 it('returns 400 when both agentName and harnessName provided', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=a&harnessName=h');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('agentName');
 expect(body.error).toContain('harnessName');
 expect(handler).not.toHaveBeenCalled();
 });

 it('calls handler with agentName and returns traces', async () => {
 const traces = [{ traceId: 't1' }, { traceId: 't2' }];
 const handler = vi.fn().mockResolvedValue({ success: true, traces });
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(200);
 expect(handler).toHaveBeenCalledWith('my-agent', undefined, undefined, undefined);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(true);
 expect(body.traces).toEqual(traces);
 });

 it('calls handler with harnessName', async () => {
 const handler = vi.fn().mockResolvedValue({ success: true, traces: [] });
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?harnessName=my-harness');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(200);
 expect(handler).toHaveBeenCalledWith(undefined, 'my-harness', undefined, undefined);
 });

 it('returns 500 when handler throws', async () => {
 const handler = vi.fn().mockRejectedValue(new Error('boom'));
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(500);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('Failed to list CloudWatch traces');
 });

 it('returns 400 for invalid startTime', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent&startTime=notanumber');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('startTime');
 expect(handler).not.toHaveBeenCalled();
 });
});

describe('handleGetCloudWatchTrace', () => {
 beforeEach(() => {
 vi.restoreAllMocks();
 });

 it('returns 404 when no handler configured', async () => {
 const ctx = mockCtx();
 const req = mockReq('/api/cloudwatch-traces/abc123?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(404);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('not available');
 });

 it('returns 400 when traceId is missing', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('traceId');
 expect(handler).not.toHaveBeenCalled();
 });

 it('returns 400 when neither agentName nor harnessName provided', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/abc123');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('agentName');
 expect(body.error).toContain('harnessName');
 expect(handler).not.toHaveBeenCalled();
 });

 it('returns 500 when handler throws', async () => {
 const handler = vi.fn().mockRejectedValue(new Error('boom'));
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/abc123?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(500);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('Failed to get CloudWatch trace');
 });

 it('calls handler and returns records', async () => {
 const records = [{ record: 'data1' }];
 const handler = vi.fn().mockResolvedValue({ success: true, records });
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/abc123?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(200);
 expect(handler).toHaveBeenCalledWith('my-agent', undefined, 'abc123', undefined, undefined);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(true);
 expect(body.records).toEqual(records);
 });
});

34 changes: 34 additions & 0 deletions
src/cli/operations/dev/web-ui/api-types.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -8,6 +8,7 @@
 * TODO: Extract these types into a shared package so both repos import
 * from a single source of truth instead of manually duplicating.
 */
import type { CloudWatchSpanRecord, CloudWatchTraceRecord } from '../../traces/types';

// ---------------------------------------------------------------------------
// GET /api/status
Expand DownExpand Up@@ -279,6 +280,39 @@ export interface GetTraceResponse {
 error?: string;
}

// ---------------------------------------------------------------------------
// GET /api/cloudwatch-traces?agentName=xxx|harnessName=xxx
// ---------------------------------------------------------------------------

/** A single trace entry returned by the CloudWatch traces list endpoint */
export interface CloudWatchTraceEntry {
 traceId: string;
 timestamp: string;
 sessionId?: string;
 spanCount?: string;
}

/** Response shape for GET /api/cloudwatch-traces */
export interface ListCloudWatchTracesResponse {
 success: boolean;
 traces?: CloudWatchTraceEntry[];
 error?: string;
}

// ---------------------------------------------------------------------------
// GET /api/cloudwatch-traces/:traceId?agentName=xxx|harnessName=xxx
// ---------------------------------------------------------------------------

/** Response shape for GET /api/cloudwatch-traces/:traceId */
export interface GetCloudWatchTraceResponse {
 success: boolean;
 records?: CloudWatchTraceRecord[];
 spans?: CloudWatchSpanRecord[];
 error?: string;
}

export type { CloudWatchTraceRecord, CloudWatchSpanRecord } from '../../traces/types';

// ---------------------------------------------------------------------------
// GET /api/memory?memoryName=xxx&namespace=yyy[&strategyId=zzz]
// ---------------------------------------------------------------------------
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
feat: add CloudWatch traces APIs for agent inspector#997

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Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

 Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

avi-alpert
merged 1 commit into

from

Apr 29, 2026
 Merged


feat: add CloudWatch traces APIs for agent inspector
#997
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43 changes: 43 additions & 0 deletions
src/cli/commands/dev/browser-mode.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -9,6 +9,8 @@ import {
 runWebUI,
} from '../../operations/dev/web-ui';
import { listMemoryRecords, retrieveMemoryRecords } from '../../operations/memory';
import { loadDeployedProjectConfig, resolveAgent } from '../../operations/resolve-agent';
import { fetchTraceRecords, listTraces } from '../../operations/traces';
import path from 'node:path';

interface DeployedHandlers {
Expand DownExpand Up@@ -192,6 +194,47 @@ export async function runBrowserMode(opts: BrowserModeOptions): Promise<void> {
 ? (agentNameParam, startTime, endTime) => collector.listTraces(agentNameParam, startTime, endTime)
 : undefined,
 onGetTrace: collector ? (agentNameParam, traceId) => collector.getTraceSpans(agentNameParam, traceId) : undefined,
 onListCloudWatchTraces: async (agentName, _harnessName, startTime, endTime) => {
 try {
 const configIO = new ConfigIO({ baseDir });
 const context = await loadDeployedProjectConfig(configIO);
 const resolved = resolveAgent(context, { runtime: agentName });
 if (!resolved.success) return { success: false, error: resolved.error };
 return listTraces({
 region: resolved.agent.region,
 runtimeId: resolved.agent.runtimeId,
 agentName: resolved.agent.agentName,
 startTime,
 endTime,
 });
 } catch (err) {
 return {
 success: false,
 error: `Failed to list CloudWatch traces: ${err instanceof Error ? err.message : String(err)}`,
 };
 }
 },
 onGetCloudWatchTrace: async (agentName, _harnessName, traceId, startTime, endTime) => {
 try {
 const configIO = new ConfigIO({ baseDir });
 const context = await loadDeployedProjectConfig(configIO);
 const resolved = resolveAgent(context, { runtime: agentName });
 if (!resolved.success) return { success: false, error: resolved.error };
 return fetchTraceRecords({
 region: resolved.agent.region,
 runtimeId: resolved.agent.runtimeId,
 traceId,
 startTime,
 endTime,
 includeSpans: true,
 });
 } catch (err) {
 return {
 success: false,
 error: `Failed to get CloudWatch trace: ${err instanceof Error ? err.message : String(err)}`,
 };
 }
 },
 onListMemoryRecords: async (memoryName, namespace, strategyId) => {
 const deployed = await resolveDeployedHandlers(baseDir, onLog);
 if (!deployed.onListMemoryRecords) return { success: false, error: 'No deployed AgentCore Memory found' };
Expand Down

233 changes: 233 additions & 0 deletions
src/cli/operations/dev/web-ui/__tests__/cloudwatch-traces.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,233 @@
import { handleGetCloudWatchTrace, handleListCloudWatchTraces } from '../handlers/cloudwatch-traces.js';
import type { RouteContext } from '../handlers/route-context.js';
import type { IncomingMessage, ServerResponse } from 'http';
import { beforeEach, describe, expect, it, vi } from 'vitest';

function mockRes(): ServerResponse & { _status: number; _headers: Record<string, string>; _body: string } {
 const res = {
 _status: 0,
 _headers: {} as Record<string, string>,
 _body: '',
 writeHead(status: number, headers?: Record<string, string>) {
 res._status = status;
 if (headers) Object.assign(res._headers, headers);
 return res;
 },
 setHeader(name: string, value: string) {
 res._headers[name] = value;
 },
 end(body?: string) {
 if (body) res._body = body;
 },
 };
 return res as unknown as ServerResponse & { _status: number; _headers: Record<string, string>; _body: string };
}

function mockReq(url: string): IncomingMessage {
 return { url, headers: { host: 'localhost:8081' } } as unknown as IncomingMessage;
}

function mockCtx(overrides: Partial<RouteContext['options']> = {}): RouteContext {
 return {
 options: {
 mode: 'dev',
 agents: [],
 harnesses: [],
 uiPort: 8081,
 ...overrides,
 },
 runningAgents: new Map(),
 startingAgents: new Map(),
 agentErrors: new Map(),
 setCorsHeaders: vi.fn(),
 readBody: vi.fn(),
 } as RouteContext;
}

describe('handleListCloudWatchTraces', () => {
 beforeEach(() => {
 vi.restoreAllMocks();
 });

 it('returns 404 when no handler configured', async () => {
 const ctx = mockCtx();
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(404);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('not available');
 });

 it('returns 400 when neither agentName nor harnessName provided', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('agentName');
 expect(body.error).toContain('harnessName');
 expect(handler).not.toHaveBeenCalled();
 });

 it('returns 400 when both agentName and harnessName provided', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=a&harnessName=h');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('agentName');
 expect(body.error).toContain('harnessName');
 expect(handler).not.toHaveBeenCalled();
 });

 it('calls handler with agentName and returns traces', async () => {
 const traces = [{ traceId: 't1' }, { traceId: 't2' }];
 const handler = vi.fn().mockResolvedValue({ success: true, traces });
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(200);
 expect(handler).toHaveBeenCalledWith('my-agent', undefined, undefined, undefined);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(true);
 expect(body.traces).toEqual(traces);
 });

 it('calls handler with harnessName', async () => {
 const handler = vi.fn().mockResolvedValue({ success: true, traces: [] });
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?harnessName=my-harness');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(200);
 expect(handler).toHaveBeenCalledWith(undefined, 'my-harness', undefined, undefined);
 });

 it('returns 500 when handler throws', async () => {
 const handler = vi.fn().mockRejectedValue(new Error('boom'));
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(500);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('Failed to list CloudWatch traces');
 });

 it('returns 400 for invalid startTime', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent&startTime=notanumber');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('startTime');
 expect(handler).not.toHaveBeenCalled();
 });
});

describe('handleGetCloudWatchTrace', () => {
 beforeEach(() => {
 vi.restoreAllMocks();
 });

 it('returns 404 when no handler configured', async () => {
 const ctx = mockCtx();
 const req = mockReq('/api/cloudwatch-traces/abc123?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(404);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('not available');
 });

 it('returns 400 when traceId is missing', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('traceId');
 expect(handler).not.toHaveBeenCalled();
 });

 it('returns 400 when neither agentName nor harnessName provided', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/abc123');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('agentName');
 expect(body.error).toContain('harnessName');
 expect(handler).not.toHaveBeenCalled();
 });

 it('returns 500 when handler throws', async () => {
 const handler = vi.fn().mockRejectedValue(new Error('boom'));
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/abc123?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(500);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('Failed to get CloudWatch trace');
 });

 it('calls handler and returns records', async () => {
 const records = [{ record: 'data1' }];
 const handler = vi.fn().mockResolvedValue({ success: true, records });
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/abc123?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(200);
 expect(handler).toHaveBeenCalledWith('my-agent', undefined, 'abc123', undefined, undefined);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(true);
 expect(body.records).toEqual(records);
 });
});

34 changes: 34 additions & 0 deletions
src/cli/operations/dev/web-ui/api-types.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -8,6 +8,7 @@
 * TODO: Extract these types into a shared package so both repos import
 * from a single source of truth instead of manually duplicating.
 */
import type { CloudWatchSpanRecord, CloudWatchTraceRecord } from '../../traces/types';

// ---------------------------------------------------------------------------
// GET /api/status
Expand DownExpand Up@@ -279,6 +280,39 @@ export interface GetTraceResponse {
 error?: string;
}

// ---------------------------------------------------------------------------
// GET /api/cloudwatch-traces?agentName=xxx|harnessName=xxx
// ---------------------------------------------------------------------------

/** A single trace entry returned by the CloudWatch traces list endpoint */
export interface CloudWatchTraceEntry {
 traceId: string;
 timestamp: string;
 sessionId?: string;
 spanCount?: string;
}

/** Response shape for GET /api/cloudwatch-traces */
export interface ListCloudWatchTracesResponse {
 success: boolean;
 traces?: CloudWatchTraceEntry[];
 error?: string;
}

// ---------------------------------------------------------------------------
// GET /api/cloudwatch-traces/:traceId?agentName=xxx|harnessName=xxx
// ---------------------------------------------------------------------------

/** Response shape for GET /api/cloudwatch-traces/:traceId */
export interface GetCloudWatchTraceResponse {
 success: boolean;
 records?: CloudWatchTraceRecord[];
 spans?: CloudWatchSpanRecord[];
 error?: string;
}

export type { CloudWatchTraceRecord, CloudWatchSpanRecord } from '../../traces/types';

// ---------------------------------------------------------------------------
// GET /api/memory?memoryName=xxx&namespace=yyy[&strategyId=zzz]
// ---------------------------------------------------------------------------
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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feat: add CloudWatch traces APIs for agent inspector#997

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 Merged

avi-alpert
merged 1 commit into

from

Apr 29, 2026
 Merged


feat: add CloudWatch traces APIs for agent inspector
#997
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43 changes: 43 additions & 0 deletions
src/cli/commands/dev/browser-mode.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -9,6 +9,8 @@ import {
 runWebUI,
} from '../../operations/dev/web-ui';
import { listMemoryRecords, retrieveMemoryRecords } from '../../operations/memory';
import { loadDeployedProjectConfig, resolveAgent } from '../../operations/resolve-agent';
import { fetchTraceRecords, listTraces } from '../../operations/traces';
import path from 'node:path';

interface DeployedHandlers {
Expand DownExpand Up@@ -192,6 +194,47 @@ export async function runBrowserMode(opts: BrowserModeOptions): Promise<void> {
 ? (agentNameParam, startTime, endTime) => collector.listTraces(agentNameParam, startTime, endTime)
 : undefined,
 onGetTrace: collector ? (agentNameParam, traceId) => collector.getTraceSpans(agentNameParam, traceId) : undefined,
 onListCloudWatchTraces: async (agentName, _harnessName, startTime, endTime) => {
 try {
 const configIO = new ConfigIO({ baseDir });
 const context = await loadDeployedProjectConfig(configIO);
 const resolved = resolveAgent(context, { runtime: agentName });
 if (!resolved.success) return { success: false, error: resolved.error };
 return listTraces({
 region: resolved.agent.region,
 runtimeId: resolved.agent.runtimeId,
 agentName: resolved.agent.agentName,
 startTime,
 endTime,
 });
 } catch (err) {
 return {
 success: false,
 error: `Failed to list CloudWatch traces: ${err instanceof Error ? err.message : String(err)}`,
 };
 }
 },
 onGetCloudWatchTrace: async (agentName, _harnessName, traceId, startTime, endTime) => {
 try {
 const configIO = new ConfigIO({ baseDir });
 const context = await loadDeployedProjectConfig(configIO);
 const resolved = resolveAgent(context, { runtime: agentName });
 if (!resolved.success) return { success: false, error: resolved.error };
 return fetchTraceRecords({
 region: resolved.agent.region,
 runtimeId: resolved.agent.runtimeId,
 traceId,
 startTime,
 endTime,
 includeSpans: true,
 });
 } catch (err) {
 return {
 success: false,
 error: `Failed to get CloudWatch trace: ${err instanceof Error ? err.message : String(err)}`,
 };
 }
 },
 onListMemoryRecords: async (memoryName, namespace, strategyId) => {
 const deployed = await resolveDeployedHandlers(baseDir, onLog);
 if (!deployed.onListMemoryRecords) return { success: false, error: 'No deployed AgentCore Memory found' };
Expand Down

233 changes: 233 additions & 0 deletions
src/cli/operations/dev/web-ui/__tests__/cloudwatch-traces.test.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,233 @@
import { handleGetCloudWatchTrace, handleListCloudWatchTraces } from '../handlers/cloudwatch-traces.js';
import type { RouteContext } from '../handlers/route-context.js';
import type { IncomingMessage, ServerResponse } from 'http';
import { beforeEach, describe, expect, it, vi } from 'vitest';

function mockRes(): ServerResponse & { _status: number; _headers: Record<string, string>; _body: string } {
 const res = {
 _status: 0,
 _headers: {} as Record<string, string>,
 _body: '',
 writeHead(status: number, headers?: Record<string, string>) {
 res._status = status;
 if (headers) Object.assign(res._headers, headers);
 return res;
 },
 setHeader(name: string, value: string) {
 res._headers[name] = value;
 },
 end(body?: string) {
 if (body) res._body = body;
 },
 };
 return res as unknown as ServerResponse & { _status: number; _headers: Record<string, string>; _body: string };
}

function mockReq(url: string): IncomingMessage {
 return { url, headers: { host: 'localhost:8081' } } as unknown as IncomingMessage;
}

function mockCtx(overrides: Partial<RouteContext['options']> = {}): RouteContext {
 return {
 options: {
 mode: 'dev',
 agents: [],
 harnesses: [],
 uiPort: 8081,
 ...overrides,
 },
 runningAgents: new Map(),
 startingAgents: new Map(),
 agentErrors: new Map(),
 setCorsHeaders: vi.fn(),
 readBody: vi.fn(),
 } as RouteContext;
}

describe('handleListCloudWatchTraces', () => {
 beforeEach(() => {
 vi.restoreAllMocks();
 });

 it('returns 404 when no handler configured', async () => {
 const ctx = mockCtx();
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(404);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('not available');
 });

 it('returns 400 when neither agentName nor harnessName provided', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('agentName');
 expect(body.error).toContain('harnessName');
 expect(handler).not.toHaveBeenCalled();
 });

 it('returns 400 when both agentName and harnessName provided', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=a&harnessName=h');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('agentName');
 expect(body.error).toContain('harnessName');
 expect(handler).not.toHaveBeenCalled();
 });

 it('calls handler with agentName and returns traces', async () => {
 const traces = [{ traceId: 't1' }, { traceId: 't2' }];
 const handler = vi.fn().mockResolvedValue({ success: true, traces });
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(200);
 expect(handler).toHaveBeenCalledWith('my-agent', undefined, undefined, undefined);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(true);
 expect(body.traces).toEqual(traces);
 });

 it('calls handler with harnessName', async () => {
 const handler = vi.fn().mockResolvedValue({ success: true, traces: [] });
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?harnessName=my-harness');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(200);
 expect(handler).toHaveBeenCalledWith(undefined, 'my-harness', undefined, undefined);
 });

 it('returns 500 when handler throws', async () => {
 const handler = vi.fn().mockRejectedValue(new Error('boom'));
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(500);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('Failed to list CloudWatch traces');
 });

 it('returns 400 for invalid startTime', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent&startTime=notanumber');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('startTime');
 expect(handler).not.toHaveBeenCalled();
 });
});

describe('handleGetCloudWatchTrace', () => {
 beforeEach(() => {
 vi.restoreAllMocks();
 });

 it('returns 404 when no handler configured', async () => {
 const ctx = mockCtx();
 const req = mockReq('/api/cloudwatch-traces/abc123?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(404);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('not available');
 });

 it('returns 400 when traceId is missing', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('traceId');
 expect(handler).not.toHaveBeenCalled();
 });

 it('returns 400 when neither agentName nor harnessName provided', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/abc123');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('agentName');
 expect(body.error).toContain('harnessName');
 expect(handler).not.toHaveBeenCalled();
 });

 it('returns 500 when handler throws', async () => {
 const handler = vi.fn().mockRejectedValue(new Error('boom'));
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/abc123?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(500);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('Failed to get CloudWatch trace');
 });

 it('calls handler and returns records', async () => {
 const records = [{ record: 'data1' }];
 const handler = vi.fn().mockResolvedValue({ success: true, records });
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/abc123?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(200);
 expect(handler).toHaveBeenCalledWith('my-agent', undefined, 'abc123', undefined, undefined);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(true);
 expect(body.records).toEqual(records);
 });
});

34 changes: 34 additions & 0 deletions
src/cli/operations/dev/web-ui/api-types.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -8,6 +8,7 @@
 * TODO: Extract these types into a shared package so both repos import
 * from a single source of truth instead of manually duplicating.
 */
import type { CloudWatchSpanRecord, CloudWatchTraceRecord } from '../../traces/types';

// ---------------------------------------------------------------------------
// GET /api/status
Expand DownExpand Up@@ -279,6 +280,39 @@ export interface GetTraceResponse {
 error?: string;
}

// ---------------------------------------------------------------------------
// GET /api/cloudwatch-traces?agentName=xxx|harnessName=xxx
// ---------------------------------------------------------------------------

/** A single trace entry returned by the CloudWatch traces list endpoint */
export interface CloudWatchTraceEntry {
 traceId: string;
 timestamp: string;
 sessionId?: string;
 spanCount?: string;
}

/** Response shape for GET /api/cloudwatch-traces */
export interface ListCloudWatchTracesResponse {
 success: boolean;
 traces?: CloudWatchTraceEntry[];
 error?: string;
}

// ---------------------------------------------------------------------------
// GET /api/cloudwatch-traces/:traceId?agentName=xxx|harnessName=xxx
// ---------------------------------------------------------------------------

/** Response shape for GET /api/cloudwatch-traces/:traceId */
export interface GetCloudWatchTraceResponse {
 success: boolean;
 records?: CloudWatchTraceRecord[];
 spans?: CloudWatchSpanRecord[];
 error?: string;
}

export type { CloudWatchTraceRecord, CloudWatchSpanRecord } from '../../traces/types';

// ---------------------------------------------------------------------------
// GET /api/memory?memoryName=xxx&namespace=yyy[&strategyId=zzz]
// ---------------------------------------------------------------------------
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

Skip to content
feat: add CloudWatch traces APIs for agent inspector#997

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Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

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Already on GitHub?
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to your account

 Merged

avi-alpert
merged 1 commit into

from

Apr 29, 2026
 Merged


feat: add CloudWatch traces APIs for agent inspector
#997
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43 changes: 43 additions & 0 deletions
src/cli/commands/dev/browser-mode.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -9,6 +9,8 @@ import {
 runWebUI,
} from '../../operations/dev/web-ui';
import { listMemoryRecords, retrieveMemoryRecords } from '../../operations/memory';
import { loadDeployedProjectConfig, resolveAgent } from '../../operations/resolve-agent';
import { fetchTraceRecords, listTraces } from '../../operations/traces';
import path from 'node:path';

interface DeployedHandlers {
Expand DownExpand Up@@ -192,6 +194,47 @@ export async function runBrowserMode(opts: BrowserModeOptions): Promise<void> {
 ? (agentNameParam, startTime, endTime) => collector.listTraces(agentNameParam, startTime, endTime)
 : undefined,
 onGetTrace: collector ? (agentNameParam, traceId) => collector.getTraceSpans(agentNameParam, traceId) : undefined,
 onListCloudWatchTraces: async (agentName, _harnessName, startTime, endTime) => {
 try {
 const configIO = new ConfigIO({ baseDir });
 const context = await loadDeployedProjectConfig(configIO);
 const resolved = resolveAgent(context, { runtime: agentName });
 if (!resolved.success) return { success: false, error: resolved.error };
 return listTraces({
 region: resolved.agent.region,
 runtimeId: resolved.agent.runtimeId,
 agentName: resolved.agent.agentName,
 startTime,
 endTime,
 });
 } catch (err) {
 return {
 success: false,
 error: `Failed to list CloudWatch traces: ${err instanceof Error ? err.message : String(err)}`,
 };
 }
 },
 onGetCloudWatchTrace: async (agentName, _harnessName, traceId, startTime, endTime) => {
 try {
 const configIO = new ConfigIO({ baseDir });
 const context = await loadDeployedProjectConfig(configIO);
 const resolved = resolveAgent(context, { runtime: agentName });
 if (!resolved.success) return { success: false, error: resolved.error };
 return fetchTraceRecords({
 region: resolved.agent.region,
 runtimeId: resolved.agent.runtimeId,
 traceId,
 startTime,
 endTime,
 includeSpans: true,
 });
 } catch (err) {
 return {
 success: false,
 error: `Failed to get CloudWatch trace: ${err instanceof Error ? err.message : String(err)}`,
 };
 }
 },
 onListMemoryRecords: async (memoryName, namespace, strategyId) => {
 const deployed = await resolveDeployedHandlers(baseDir, onLog);
 if (!deployed.onListMemoryRecords) return { success: false, error: 'No deployed AgentCore Memory found' };
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233 changes: 233 additions & 0 deletions
src/cli/operations/dev/web-ui/__tests__/cloudwatch-traces.test.ts

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,233 @@
import { handleGetCloudWatchTrace, handleListCloudWatchTraces } from '../handlers/cloudwatch-traces.js';
import type { RouteContext } from '../handlers/route-context.js';
import type { IncomingMessage, ServerResponse } from 'http';
import { beforeEach, describe, expect, it, vi } from 'vitest';

function mockRes(): ServerResponse & { _status: number; _headers: Record<string, string>; _body: string } {
 const res = {
 _status: 0,
 _headers: {} as Record<string, string>,
 _body: '',
 writeHead(status: number, headers?: Record<string, string>) {
 res._status = status;
 if (headers) Object.assign(res._headers, headers);
 return res;
 },
 setHeader(name: string, value: string) {
 res._headers[name] = value;
 },
 end(body?: string) {
 if (body) res._body = body;
 },
 };
 return res as unknown as ServerResponse & { _status: number; _headers: Record<string, string>; _body: string };
}

function mockReq(url: string): IncomingMessage {
 return { url, headers: { host: 'localhost:8081' } } as unknown as IncomingMessage;
}

function mockCtx(overrides: Partial<RouteContext['options']> = {}): RouteContext {
 return {
 options: {
 mode: 'dev',
 agents: [],
 harnesses: [],
 uiPort: 8081,
 ...overrides,
 },
 runningAgents: new Map(),
 startingAgents: new Map(),
 agentErrors: new Map(),
 setCorsHeaders: vi.fn(),
 readBody: vi.fn(),
 } as RouteContext;
}

describe('handleListCloudWatchTraces', () => {
 beforeEach(() => {
 vi.restoreAllMocks();
 });

 it('returns 404 when no handler configured', async () => {
 const ctx = mockCtx();
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(404);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('not available');
 });

 it('returns 400 when neither agentName nor harnessName provided', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('agentName');
 expect(body.error).toContain('harnessName');
 expect(handler).not.toHaveBeenCalled();
 });

 it('returns 400 when both agentName and harnessName provided', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=a&harnessName=h');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('agentName');
 expect(body.error).toContain('harnessName');
 expect(handler).not.toHaveBeenCalled();
 });

 it('calls handler with agentName and returns traces', async () => {
 const traces = [{ traceId: 't1' }, { traceId: 't2' }];
 const handler = vi.fn().mockResolvedValue({ success: true, traces });
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(200);
 expect(handler).toHaveBeenCalledWith('my-agent', undefined, undefined, undefined);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(true);
 expect(body.traces).toEqual(traces);
 });

 it('calls handler with harnessName', async () => {
 const handler = vi.fn().mockResolvedValue({ success: true, traces: [] });
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?harnessName=my-harness');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(200);
 expect(handler).toHaveBeenCalledWith(undefined, 'my-harness', undefined, undefined);
 });

 it('returns 500 when handler throws', async () => {
 const handler = vi.fn().mockRejectedValue(new Error('boom'));
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(500);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('Failed to list CloudWatch traces');
 });

 it('returns 400 for invalid startTime', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onListCloudWatchTraces: handler });
 const req = mockReq('/api/cloudwatch-traces?agentName=my-agent&startTime=notanumber');
 const res = mockRes();

 await handleListCloudWatchTraces(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('startTime');
 expect(handler).not.toHaveBeenCalled();
 });
});

describe('handleGetCloudWatchTrace', () => {
 beforeEach(() => {
 vi.restoreAllMocks();
 });

 it('returns 404 when no handler configured', async () => {
 const ctx = mockCtx();
 const req = mockReq('/api/cloudwatch-traces/abc123?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(404);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('not available');
 });

 it('returns 400 when traceId is missing', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('traceId');
 expect(handler).not.toHaveBeenCalled();
 });

 it('returns 400 when neither agentName nor harnessName provided', async () => {
 const handler = vi.fn();
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/abc123');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(400);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('agentName');
 expect(body.error).toContain('harnessName');
 expect(handler).not.toHaveBeenCalled();
 });

 it('returns 500 when handler throws', async () => {
 const handler = vi.fn().mockRejectedValue(new Error('boom'));
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/abc123?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(500);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(false);
 expect(body.error).toContain('Failed to get CloudWatch trace');
 });

 it('calls handler and returns records', async () => {
 const records = [{ record: 'data1' }];
 const handler = vi.fn().mockResolvedValue({ success: true, records });
 const ctx = mockCtx({ onGetCloudWatchTrace: handler });
 const req = mockReq('/api/cloudwatch-traces/abc123?agentName=my-agent');
 const res = mockRes();

 await handleGetCloudWatchTrace(ctx, req, res);

 expect(res._status).toBe(200);
 expect(handler).toHaveBeenCalledWith('my-agent', undefined, 'abc123', undefined, undefined);
 const body = JSON.parse(res._body);
 expect(body.success).toBe(true);
 expect(body.records).toEqual(records);
 });
});

34 changes: 34 additions & 0 deletions
src/cli/operations/dev/web-ui/api-types.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -8,6 +8,7 @@
 * TODO: Extract these types into a shared package so both repos import
 * from a single source of truth instead of manually duplicating.
 */
import type { CloudWatchSpanRecord, CloudWatchTraceRecord } from '../../traces/types';

// ---------------------------------------------------------------------------
// GET /api/status
Expand DownExpand Up@@ -279,6 +280,39 @@ export interface GetTraceResponse {
 error?: string;
}

// ---------------------------------------------------------------------------
// GET /api/cloudwatch-traces?agentName=xxx|harnessName=xxx
// ---------------------------------------------------------------------------

/** A single trace entry returned by the CloudWatch traces list endpoint */
export interface CloudWatchTraceEntry {
 traceId: string;
 timestamp: string;
 sessionId?: string;
 spanCount?: string;
}

/** Response shape for GET /api/cloudwatch-traces */
export interface ListCloudWatchTracesResponse {
 success: boolean;
 traces?: CloudWatchTraceEntry[];
 error?: string;
}

// ---------------------------------------------------------------------------
// GET /api/cloudwatch-traces/:traceId?agentName=xxx|harnessName=xxx
// ---------------------------------------------------------------------------

/** Response shape for GET /api/cloudwatch-traces/:traceId */
export interface GetCloudWatchTraceResponse {
 success: boolean;
 records?: CloudWatchTraceRecord[];
 spans?: CloudWatchSpanRecord[];
 error?: string;
}

export type { CloudWatchTraceRecord, CloudWatchSpanRecord } from '../../traces/types';

// ---------------------------------------------------------------------------
// GET /api/memory?memoryName=xxx&namespace=yyy[&strategyId=zzz]
// ---------------------------------------------------------------------------
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