customerio-webhooks-events

Implement Customer.io webhook handling. Use when processing delivery events, handling callbacks, or integrating Customer.io event streams. Trigger with phrases like "customer.io webhook", "customer.io events", "customer.io callback", "customer.io delivery status".

Install with Tessl CLI

npx tessl i github:jeremylongshore/claude-code-plugins-plus-skills --skill customerio-webhooks-events

What are skills?

1.41x

Quality

66%

Does it follow best practices?

Impact

89%

1.41x

Average score across 3 eval scenarios

Optimize this skill with Tessl

npx tessl skill review --optimize ./plugins/saas-packs/customerio-pack/skills/customerio-webhooks-events/SKILL.md

SKILL.md

Review

Evals

Evaluation results

100%

24%

Customer.io Webhook Integration for a SaaS Email Tracking Service

Webhook signature verification and Express setup

Criteria

Without context

With context

WebhookEventType union

100%

WebhookEvent interface

50%

100%

WebhookPayload interface

100%

HMAC-SHA256 algorithm

100%

Timing-safe comparison

100%

Correct signature header

100%

Raw body parsing

50%

100%

Body parsed after raw

100%

401 on bad signature

100%

200 on success

57%

100%

Metric-based routing

37%

100%

Webhook secret env var

100%

Without context: $0.7538 · 3m 29s · 30 turns · 77 in / 13,023 out tokens

With context: $0.9318 · 3m 54s · 37 turns · 40 in / 13,852 out tokens

95%

47%

Reliable Event Processing Pipeline for Customer.io Webhooks

BullMQ event queue with retry configuration

Criteria

Without context

With context

BullMQ package

100%

ioredis connection

44%

Attempts set to 3

100%

Exponential backoff type

100%

Backoff delay 1000ms

100%

removeOnComplete limit

100%

removeOnFail limit

100%

event_id for deduplication

100%

DESIGN.md retry strategy

100%

DESIGN.md deduplication explanation

100%

Worker defined

100%

Without context: $0.4520 · 2m 36s · 21 turns · 28 in / 8,063 out tokens

With context: $0.5074 · 1m 51s · 26 turns · 112 in / 5,895 out tokens

73%

Email Delivery Analytics Pipeline: Reporting API + Data Warehouse

Reporting API and BigQuery data warehouse streaming

Criteria

Without context

With context

@customerio/track package

APIClient used

RegionUS used

App API key env var

100%

@google-cloud/bigquery package

100%

BigQuery dataset and table

100%

event_id in row

100%

event_type from metric

100%

Timestamp ISO conversion

100%

inserted_at field

100%

table.insert for streaming

100%

README env vars documented

100%

Without context: $0.5132 · 2m 27s · 24 turns · 30 in / 8,432 out tokens

With context: $0.5231 · 1m 44s · 25 turns · 3,526 in / 5,737 out tokens

Evaluated: about 4 hours ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

Customer.io Webhook Integration for a SaaS Email Tracking Service Reliable Event Processing Pipeline for Customer.io Webhooks Email Delivery Analytics Pipeline: Reporting API + Data Warehouse

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