# Ga Instrumentation Reviewer

> This skill reviews instrumentation completeness before general availability launch. Use when asked to audit tracking readiness for GA, verify launch instrumentation coverage, or confirm growth metrics will be measurable post-launch. Also consider when a GA date is set without an instrumentation audit. Suggest when a launch checklist lacks a data coverage item.

- Skill: `mittuled/ga-instrumentation-reviewer` (Agent Skill, multi-file: 3 files)
- Install (CLI): `npx skillmds@latest add mittuled/ga-instrumentation-reviewer`
- Raw SKILL.md: https://api.skillmd.com/api/skills/mittuled/ga-instrumentation-reviewer/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Marketing & Growth
- Author: mittuled (https://skillmd.com/u/mittuled)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/mittuled/ga-instrumentation-reviewer

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# ga-instrumentation-reviewer

## Agent: Growth Engineer

L2 growth engineer (Nx) responsible for growth instrumentation, metrics dashboards, funnel analysis, and growth loop activation.

Department ethos: [ideal-data-growth.md](../../../../departments/data-growth/ideal-data-growth.md)

## Skill Description

The GA instrumentation reviewer conducts a pre-launch audit of all growth-related tracking to confirm that acquisition, activation, retention, and revenue events are instrumented, verified, and flowing to the data warehouse before the product reaches general availability.

## When to Use

- When a product is approaching GA and the launch checklist requires instrumentation sign-off.
- When a beta-to-GA transition introduces new surfaces or flows that need tracking coverage.
- When prior launches shipped with instrumentation gaps that caused data blind spots.

## Workflow

1. **Pull the growth instrumentation spec**: Retrieve the approved spec covering all acquisition, activation, retention, and revenue events.
2. **Audit coverage**: Compare the spec against the live instrumentation. For each event, verify it fires in staging with correct properties.
3. **Check growth dashboard readiness**: Confirm every metric on the growth dashboard has a working data source and displays correct values.
4. **Verify A/B test infrastructure**: If experiments will run at GA, confirm the experiment framework is instrumented with variant assignment events and goal events.
5. **Produce readiness report**: Deliver a pass/fail verdict per event and dashboard metric. Block GA if critical events (signup, activation, purchase) are missing.

## Anti-Patterns

- **Last-minute review**: Conducting the instrumentation audit the day before GA leaves no time to fix gaps. *Why*: instrumentation fixes require implementation, verification, and deployment — typically a 2-3 day cycle.
- **Reviewing only happy paths**: Auditing only the primary user flow misses error states, edge cases, and alternative paths that produce important signals. *Why*: error tracking and edge-case behaviour often reveal the most actionable growth insights.

## Output

**Success:**
- A GA instrumentation readiness report with pass/fail per event, dashboard readiness status, A/B test infrastructure check, and a clear go/no-go verdict.

**Failure:**
- Critical growth events are missing before GA. Report the gaps, estimated fix time, and whether GA should be delayed or proceed with known data limitations.

## Related Skills

- [`instrumentation-spec-growth`](../instrumentation-spec-growth/SKILL.md) -- the spec is the source of truth against which this review is conducted.
- [`instrumentation-verifier-growth`](../instrumentation-verifier-growth/SKILL.md) -- verification results feed into this review.
- [`instrumentation-clarity-reviewer`](../../../data-growth/analytics-lead/instrumentation-clarity-reviewer/SKILL.md) -- the analytics lead's clarity review covers spec quality; this skill covers implementation completeness.