01 — TL;DR
If you need trigger clarity above all else, pick docx (4.0/5). pdf (3.8/5) 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: docx is clearly stronger (5.0 vs 4.5). For workloads where this dimension matters, prefer docx.
- Output specificity. output specificity: docx is clearly stronger (5.0 vs 4.5). For workloads where this dimension matters, prefer docx.
- Scope precision. scope precision: docx is clearly stronger (5.0 vs 4.5). For workloads where this dimension matters, prefer docx.
- Self-containment. self-containment: docx is clearly stronger (5.0 vs 4.5). For workloads where this dimension matters, prefer docx.
- Reusability. reusability: docx and pdf score essentially the same (4.0 vs 4.0). Neither has an edge here.
Which to pick
When to choose docx
- Your workload emphasizes trigger clarity — docx scores 5.0 vs 4.5 here.
- Your workload emphasizes output specificity — docx scores 5.0 vs 4.5 here.
- Your workload emphasizes scope precision — docx scores 5.0 vs 4.5 here.
When to choose pdf
- You want a skill that's been reviewed in depth — pdf is deep-dive (docx is reviewed).
- Multi-source consensus matters to you — pdf appears in 4 of our tracked sources (docx: 2).
- The document tool convention you're working in matches pdf's scope.
Scenario by scenario
| Scenario | Winner | Why |
|---|---|---|
| Agent must auto-select between many document tools | docx | Trigger clarity decides — clearer triggers reduce routing errors. |
| Output must be a specific file format or structured data | docx | Output specificity determines whether downstream tools can rely on the result. |
| Skill must be readable and complete out of the box | docx | 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, docx or pdf?
- docx ranks higher overall (4.0 vs 3.8 on our 0–5 rubric). That said, the better choice depends on which dimensions matter most for your use case.
- Are docx and pdf both free to use?
- Both skills are free and open-source (or freely licensed). docx: See source repo. pdf: 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 docx and pdf 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?
- docx is sourced from github:anthropics/skills (official). pdf is sourced from github:anthropics/skills (official). We verify each skill across multiple sources where possible; docx appears in 2 sources, pdf in 4.