Menu

Individual skill

impression-share-diagnostics

0upvotes

Impression share analysis and root cause diagnosis for Google Ads Search campaigns. Auto-invoke when investigating underspending, analyzing auction competitiveness, or diagnosing budget vs. quality issues. Interprets Search IS, Budget Lost IS, and Rank Lost IS metrics in smart bidding context.

impression-share-diagnostics/SKILL.md

Read pinned source

Source commit 90f0e419f2d820789d5e50eee1237ab9fd14dfc6

What was checked

Matches the observed repository HEAD
Yes
Scanner rules are current
No
Repository scan complete
No
Skill scan complete
No
Observed behavior
Not checked yet
Last checked
Nov 11, 2026

These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.

Install this skill

Choose an agent in your Stack or copy a command below. Commands fetch the pinned commit and copy only this skill directory. Existing destinations are refused. Copying a command does not install anything.

An install command is unavailable: current rules, complete repository and skill scans, an eligible behavior level and a permitted license are required.

Repository context

Repository stars (not skill ratings)
80
Repository last updated
Aug 25, 2026
License
MIT

Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.

Files and excerpt

File metadata and permitted, redacted excerpts come from the recorded scan. Source links are pinned to that commit.

Browse files
Read excerpt

# Impression Share Diagnostics Skill

**Purpose:** Provides expert analysis of impression share metrics to diagnose root causes of underspending and auction performance issues in Google Ads Search campaigns.

**Type:** Domain knowledge skill (auto-invoked)

---

## What This Skill Deliberately Does NOT Do

- **Calculate the budget change.** Diagnosis ends at "budget is (or isn't) the constraint" — the sizing math (5-10% caps, adjustment factors, daily translation) lives in [`budget-recommendation-calculator`](../budget-recommendation-calculator/).
- **Diagnose PMax with the decision tree.** Performance Max has no impression share metrics — the scenarios apply to Search campaigns (plus the bid-cap check for Display/Video remarketing). PMax gets budget-utilization and asset diagnostics instead (see the campaign-type section).
- **Treat Rank Lost IS as a target.** The skill reads it as evidence for the constraint diagnosis, never as a number to optimize down — chasing it is the misconception this skill exists to correct.
- **Pull the metrics.** The required API fields are listed under Data Sources Required; the query templates live in [`gaql-query-patterns`](../gaql-query-patterns/).
Back to top