# rag-engineer

Skill · `skill:rag-engineer`

Favz census, built 2026-10-23. Tool names and counts only. No repo names. HTML page: https://favz.co/tools/skill-rag-engineer.html

- Repos that have it now: 20
- Repos that ever had it: 24
- Still have it: 83%
- Share of census repos with any tool: 0.01%

## 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 |
|---|---|
| [2026-02](https://favz.co/months/#2026-02) | 5 |
| [2026-03](https://favz.co/months/#2026-03) | 13 |
| [2026-04](https://favz.co/months/#2026-04) | 13 |
| [2026-05](https://favz.co/months/#2026-05) | 15 |
| [2026-06](https://favz.co/months/#2026-06) | 18 |
| [2026-07](https://favz.co/months/#2026-07) | 19 |
| [2026-09](https://favz.co/months/#2026-09) | 19 |
| [2026-10](https://favz.co/months/#2026-10) | 20 |

Each linked month leads to what else people first added that month. All months: https://favz.co/months/index.md

## 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 |
|---|---|---|---|
| [langgraph](https://favz.co/tools/skill-langgraph.md) | Skill | 17 | 5570.8× |
| [prompt-caching](https://favz.co/tools/skill-prompt-caching.md) | Skill | 16 | 5243.1× |
| [inngest](https://favz.co/tools/skill-inngest.md) | Skill | 15 | 5161.2× |
| [agent-memory-systems](https://favz.co/tools/skill-agent-memory-systems.md) | Skill | 15 | 4488.0× |
| [crewai](https://favz.co/tools/skill-crewai.md) | Skill | 13 | 4473.0× |
| [clerk-auth](https://favz.co/tools/skill-clerk-auth.md) | Skill | 15 | 4301.0× |
| [core-components](https://favz.co/tools/skill-core-components.md) | Skill | 15 | 4301.0× |
| [claude-code-guide](https://favz.co/tools/skill-claude-code-guide.md) | Skill | 13 | 4260.0× |
| [seo-content-writer](https://favz.co/tools/skill-seo-content-writer.md) | Skill | 12 | 4129.0× |
| [ui-visual-validator](https://favz.co/tools/skill-ui-visual-validator.md) | Skill | 12 | 4129.0× |
| [startup-metrics-framework](https://favz.co/tools/skill-startup-metrics-framework.md) | Skill | 13 | 4066.4× |
| [data-storytelling](https://favz.co/tools/skill-data-storytelling.md) | Skill | 13 | 3889.6× |

## Comes in the same pack

1 tools almost never appear without this one. Most likely people copy them in together.

- [ai-agents-architect](https://favz.co/tools/skill-ai-agents-architect.md)