# extension-to-functions-codebase

Skill · `skill:extension-to-functions-codebase`

Favz census, built 2026-10-04. Tool names and counts only. No repo names. HTML page: https://favz.co/tools/skill-extension-to-functions-codebase.html

- Repos that have it now: 20
- Repos that ever had it: 21
- Still have it: 95%
- Share of census repos with any tool: 0.02%

## Repos with it, by month

From commit dates in each repo's history. The last few days always look low, because repos found later fill them in.

| Month | Repos at month end |
|---|---|
| 2026-07 | 1 |
| 2026-08 | 9 |
| 2026-09 | 18 |
| 2026-10 | 20 |

## Goes with

Tools found in the same repos, ranked by lift: 3× means the two show up together three times as often as chance would give. Only pairs sharing 5 or more repos.

| Tool | Kind | Repos with both | Lift |
|---|---|---|---|
| [firebase-remote-config-basics](https://favz.co/tools/skill-firebase-remote-config-basics.md) | Skill | 20 | 2783.0× |
| [xcode-project-setup](https://favz.co/tools/skill-xcode-project-setup.md) | Skill | 20 | 2365.6× |
| [firebase-ai-logic-basics](https://favz.co/tools/skill-firebase-ai-logic-basics.md) | Skill | 20 | 2307.9× |
| [firebase-crashlytics](https://favz.co/tools/skill-firebase-crashlytics.md) | Skill | 20 | 2252.9× |
| [firebase-security-rules-auditor](https://favz.co/tools/skill-firebase-security-rules-auditor.md) | Skill | 20 | 2102.7× |
| [firebase-firestore](https://favz.co/tools/skill-firebase-firestore.md) | Skill | 20 | 1892.4× |
| [firebase-app-hosting-basics](https://favz.co/tools/skill-firebase-app-hosting-basics.md) | Skill | 20 | 1526.2× |
| [firebase-data-connect](https://favz.co/tools/skill-firebase-data-connect.md) | Skill | 20 | 1526.2× |
| [firebase-hosting-basics](https://favz.co/tools/skill-firebase-hosting-basics.md) | Skill | 20 | 1478.5× |
| [firebase-auth-basics](https://favz.co/tools/skill-firebase-auth-basics.md) | Skill | 20 | 1371.3× |
| [firebase-basics](https://favz.co/tools/skill-firebase-basics.md) | Skill | 20 | 1261.6× |