01 — TL;DR
If you need output specificity above all else, pick xlsx (4.3/5). summarize (4.1/5) is a reasonable alternative if you're already in its source ecosystem. They overlap in document tool territory.
Where they differ
- Trigger clarity. trigger clarity: summarize and xlsx score essentially the same (4.5 vs 4.5). Neither has an edge here.
- Output specificity. output specificity: xlsx is clearly stronger (4.0 vs 4.5). For workloads where this dimension matters, prefer xlsx.
- Scope precision. scope precision: summarize and xlsx score essentially the same (4.5 vs 4.5). Neither has an edge here.
- Self-containment. self-containment: xlsx is clearly stronger (3.5 vs 4.0). For workloads where this dimension matters, prefer xlsx.
- Reusability. reusability: summarize and xlsx score essentially the same (4.0 vs 4.0). Neither has an edge here.
Which to pick
When to choose summarize
- You weight community adoption — summarize's upstream repo has 383,796 stars vs 163,344.
- The document tool convention you're working in matches summarize's scope.
When to choose xlsx
- Your workload emphasizes output specificity — xlsx scores 4.0 vs 4.5 here.
- Your workload emphasizes self-containment — xlsx scores 3.5 vs 4.0 here.
- Multi-source consensus matters to you — xlsx appears in 3 of our tracked sources (summarize: 1).
Scenario by scenario
| Scenario | Winner | Why |
|---|---|---|
| Agent must auto-select between many document tools | either | Trigger clarity decides — clearer triggers reduce routing errors. |
| Output must be a specific file format or structured data | xlsx | Output specificity determines whether downstream tools can rely on the result. |
| Skill must be readable and complete out of the box | xlsx | Self-containment matters when you're not the original author. |
| Cross-team or cross-project reuse expected | either | Reusability separates one-off scripts from durable building blocks. |
Common questions
- Which is better, summarize or xlsx?
- xlsx ranks higher overall (4.3 vs 4.1 on our 0–5 rubric). That said, the better choice depends on which dimensions matter most for your use case.
- Are summarize and xlsx both free to use?
- Both skills are free and open-source (or freely licensed). summarize: See source repo. xlsx: See source repo. Installation has no cost; usage costs depend on the underlying LLM tokens consumed when you invoke the skill.
- Can I install both summarize and xlsx at the same time?
- Yes. Agent skills are not exclusive — an agent runtime (Claude Code, Codex, etc.) can have many skills installed and route to whichever matches the current task. Installing both is a low-cost way to keep your options open.
- Where do these skills come from?
- summarize is sourced from skillsmp.com (curated marketplace). xlsx is sourced from skillsmp.com (curated marketplace). We verify each skill across multiple sources where possible; summarize appears in 1 source, xlsx in 3.