CATCH #2203
DETECTED OCT 20, 2026 23:18 UTC
THE CATCHscore 7/10
EXHIBIT 2203 · URGENT
Oct 20, 2026 23:18 UTC
npm
@anthropic-ai/sdk
Anthropic's SDK update 0.137.0 includes new webhook endpoints and feature flags, hinting at upcoming webhook functionality and tool use improvements.
✓ VERIFIED — BEAT THE ANNOUNCEMENT BY 49.6H · AUTO-VERIFIED AGAINST ANTHROPIC NEWS
READY TO POST:
anthropic's latest sdk has new webhook endpoints and a beta flag, looks like webhooks might be coming soon!
new anthropic sdk version shows signs of improved tool use examples and upcoming webhook features. interesting for those building with claude.
EVIDENCE — the receipts
@anthropic-ai/sdk 0.136.0 -> 0.137.0: +987 strings, -2283 strings, 39 flagged as interesting
[feature_flag] (5)
+ /v1/organizations/webhooks/${webhookEndpointID}/regenerate_signing_secret?beta=true
+ /v1/organizations/webhooks/${webhookEndpointID}?beta=true
+ /v1/organizations/webhooks?beta=true
+ anthropic-beta: webhooks-2026-10-07
+ ts
* declare module '@anthropic-ai/sdk/internal/request-options' {
* interface RequestOptions {
* myContext?: string;
* }
* }
*
[endpoint] (6)
+ /v1/organizations/webhooks/${webhookEndpointID}/regenerate_signing_secret?beta=true
+ /v1/organizations/webhooks/${webhookEndpointID}?beta=true
+ /v1/organizations/webhooks?beta=true
+ /v1/organizations/webhooks
+ /v1/organizations/webhooks/{webhook_endpoint_id}
+ /v1/organizations/webhooks/{webhook_endpoint_id}/regenerate_signing_secret
[sentence] (32)
+ ts
* declare module '@anthropic-ai/sdk/internal/request-options' {
* interface RequestOptions {
* myContext?: string;
* }
* }
*
+ from walking out of the root via a literal or
* brace-expanded
+ json
* [
* {
* "name": "get_stock_price",
* "description": "Get the current stock price for a given ticker symbol.",
* "input_schema": {
* "type": "object",
* "properties": {
+ json
* [
* {
* "role": "user",
* "content": "What's the Greek name for Sun? (A) Sol (B) Helios (C) Sun"
* },
* { "role": "assistant", "content": "The best answer is (" }
* ]
*
+ json
* [
* {
* "type": "tool_result",
* "tool_use_id": "toolu_01D7FLrfh4GYq7yT1ULFeyMV",
* "content": "259.75 USD"
* }
* ]
*
+ json
* [
* {
caught by the 20-minute sweep ·
the live wire · all receipts