FreePublished on GitHub

observability-and-growth

Full instrumentation from day one. PostHog consolidates product analytics + feature flags + error tracking (one platform, one bill). GA4 via GTM (14-step automation, custom dimensions over events, server-side tagging). Sentry (deep error tracking + performance). Stripe (webhook-first with idempotent processing). Listmonk on Coolify (newsletters via Amazon SES SMTP relay). PLG 7-layer framework. Programmatic SEO (5 page types). Incident auto-remediation via Sentry→Inngest pipeline. AI search (GEO) awareness. Local business conversions (phone_click, direction_click, form_submit, booking_click) with CRO patterns for both SaaS and local.

The English summary is being prepared. Showing the original description.

heymegabyte/agent-skills

Works withGoogle Analytics Stripe Cloudflare Sentry

See how to install

Files included (12)

SKILL.md6.8 KB
activation-funnel.md11.0 KB
analytics-configuration.md7.2 KB
conversion-optimization.md4.9 KB
email-marketing-and-listmonk.md8.1 KB
feature-flags-and-experiments.md6.6 KB
mcp-server-registry.md15.0 KB
sentry-alert-rules.md8.7 KB
square-payments.md13.3 KB
stripe-billing.md9.8 KB
user-feedback-collection.md8.9 KB
workers-tracing-otlp.md3.0 KB

SKILL.md (original)

Review the instructions the agent will receive before you install.

13 — Observability and Growth

Tiered PostHog+Sentry+GA4 stacks wired from day one; feature flags, PLG patterns, incident auto-remediation.

Instrumentation tiers

Per _kernel/standards.md#integrations:

Tier 1 (solo) — PostHog + Workers Tracing OTLP (2 vendors max, cookie-free, free tier covers <10k MAU)
Tier 2 (enterprise) — + Sentry @sentry/cloudflare v9 + GA4/GTM + Axiom
Tier 3 (LLM-heavy >10k calls/mo) — + AI Gateway

PostHog (Tier 1 cornerstone)

Snippet on every HTML page w/ persistence:'memory' (cookie-free); capture_pageview + capture_pageleave + autocapture:true
Unified platform: product analytics + feature flags + session replay + error tracking
CSP: script-src + connect-src for posthog domain
Per-feature event naming: <feature>:<action> (signup:complete, editor:save, share:copy)

Sentry (Tier 2)

@sentry/cloudflare v11 (stream trace lifecycle default since 11.0) + withSentry wrapper; project via mcp__sentry__create_project (org:megabyte-labs)
SENTRY_DSN via wrangler secret put
Pattern: withSentry(env => ({ dsn, tracesSampleRate: 1.0, sendDefaultPii: false }), worker)
Breadcrumbs before risky ops; capture exception w/ context tags (worker | route | userId)
Release tracking via SENTRY_RELEASE env; Workers Tracing handles I/O spans

Workers Tracing (Tier 1 + 2) / GA4 + GTM (Tier 2) / AI Gateway (Tier 3)

Workers Tracing: [observability] enabled = true in wrangler.jsonc — zero-config OTel I/O tracing; export to Axiom, Honeycomb, Grafana, Datadog via @opentelemetry/exporter-trace-otlp-http
GA4 + GTM: container snippet (head script + noscript iframe); CSP: googletagmanager.com + google-analytics.com + analytics.google.com + region1.google-analytics.com; server-side tagging for EU; custom dimensions over custom events
AI Gateway: env.AI.run() auto-routes; direct Anthropic: https://gateway.ai.cloudflare.com/v1/{account}/{gateway}/anthropic/v1/messages; caching + rate-limit + fallback + per-call logging

Stripe + Link (accept-money default, ALL flows — per `rules/payments.md`)

Accept default w/ Link ON everywhere (Payment Element / Checkout / Payment Links); Instant Bank Payments on high-ticket + donation flows
Webhook-first w/ idempotent processing (D1 dedupe table payment_events(event_id, source, processed_at) UNIQUE)
Stripe-Signature HMAC + 5-min replay window
Mint products + prices via MCP (idempotent via lookup_key); subscription state machine in D1
STRIPE_WEBHOOK_SECRET via POST /v1/webhook_endpoints

Square (on-request rail ONLY — per `rules/payments.md`)

Only when the prompt names Square: Web Payments SDK card form + Apple Pay + Google Pay + Cash App Pay
Square-Signature HMAC-SHA256 w/ 6-hr replay window; idempotency_key UUID per request (24-hr dedupe)
No 501(c)(3) discount exists (verified 2026-10) — custom rates only ≥$250K/yr

Listmonk (newsletter — self-hosted on Coolify)

Amazon SES SMTP relay (LISTMONK_FROM_EMAIL); listmonkSendTx(env, { templateAlias, ... }) via KV-cached alias→id map
Templates in emails/*.html synced via scripts/listmonk-sync.mjs
Auth: Authorization: token <user>:<key> (Listmonk 3.x API-user pattern)

PLG 7-Layer Framework

Discovery — SEO + AI search + word-of-mouth + paid
Sign-up — passwordless preferred (Clerk M2M JWT)
Activation — first-value-in-X-min metric (aha moment per rules/feature-flags.md instrumentation)
Engagement — DAU/MAU ratio, session depth
Retention — D1/D7/D30 cohort
Revenue — upgrade trigger, expansion
Referral — viral coefficient, two-sided rewards

Programmatic SEO (5 page types)

/integrations/{tool} · /compare/{a}-vs-{b} · /for/{audience} · /templates/{type} · /{city}-{service}
Each: unique H1 + meta desc + 800+ unique words + 1 unique image + 3+ internal links + 1+ outbound citation. Cap 200 pages per axis.
Per rules/copy-writing.md § pSEO + rules/thin-source-amplification.md.

GEO / AI search

Quotable answer blocks 40-60 words (LLM citation magnet); FAQPage schema highest AI-citation rate (ChatGPT / Perplexity / Google AI Overviews)
JSON-LD facts MUST also appear as visible HTML body text; lead paragraphs answer query in <40 words
EEAT: author bio + Person schema + sameAs + dated revision + ownership statement
llms.txt at site root (DX-only, <0.3% adoption — not build gate)

Local-business conversions + CRO

Track per local-conversions.md: phone_click (tel:) · direction_click (Google Maps) · form_submit · booking_click (Calendly/Cal.com) · chat_click · review_click (Google Business/Yelp). Each fires PostHog + Sentry breadcrumb + (Tier 2) GA4 conversion event.

CRO: sticky CTA bar on mobile · scroll-progress bar (subtle) · exit-intent modal (cart/pricing only, not blogs) · social proof near every CTA · urgency without dark patterns ("3 spots left this week" if true) · trust strip above fold · single primary CTA per surface.

Incident auto-remediation

Sentry → Inngest pipeline: (1) Sentry webhook on event.alert.triggered → (2) Inngest dispatches incident-responder agent → (3) agent reads event, traces to source file, proposes fix, opens PR via gh MCP → (4) PR auto-merges if all CI gates pass per rules/ai-seniority.md.

See submodules: posthog, ga4-gtm, sentry, stripe-billing, square-payments, listmonk, plg-framework, programmatic-seo, incident-remediation, geo-ai-search, local-conversions.

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Install

Install with a command

npx skills add https://github.com/heymegabyte/agent-skills --skill observability-and-growth

Paste it into your terminal and run it (requires Node.js). You can choose which agents to install it for, such as Claude Code or Codex.

Ask your agent

Please install the following Agent Skill.
https://github.com/heymegabyte/agent-skills/tree/main/13-observability-and-growth

First review SKILL.md and the bundled files and confirm there is nothing suspicious (such as sending data externally or reading credentials). Then place it in ~/.claude/skills/observability-and-growth/ for Claude Code, or ~/.agents/skills/observability-and-growth/ for Codex.

Send this text to Claude Code or Codex as is. It checks the contents before installing.

View source on GitHub

Repository: heymegabyte/agent-skills
Stars: 24
Forks: 4
Category: DevOps
License: Rutgers
Original language: English
Last updated: Oct 11, 2026

A skill is a set of instructions and scripts for an agent. cccskills does not guarantee that skills are safe. Review the contents before you install.

Files included (12)

SKILL.md (original)

13 — Observability and Growth

Instrumentation tiers

PostHog (Tier 1 cornerstone)

Sentry (Tier 2)

Workers Tracing (Tier 1 + 2) / GA4 + GTM (Tier 2) / AI Gateway (Tier 3)

Stripe + Link (accept-money default, ALL flows — per rules/payments.md)

Square (on-request rail ONLY — per rules/payments.md)

Listmonk (newsletter — self-hosted on Coolify)

PLG 7-Layer Framework

Programmatic SEO (5 page types)

GEO / AI search

Local-business conversions + CRO

Incident auto-remediation

See submodules: posthog, ga4-gtm, sentry, stripe-billing, square-payments, listmonk, plg-framework, programmatic-seo, incident-remediation, geo-ai-search, local-conversions.

Reviews

Comments

More skills from this repository

app-foundation

architecture-and-stack

brand-and-content-system

build-and-slice-loop

cf-integrations-reference

cinematic-website-prime-directive

Stripe + Link (accept-money default, ALL flows — per `rules/payments.md`)

Square (on-request rail ONLY — per `rules/payments.md`)