01 — TL;DR
Both cost-export and eval-driven-dev are strong choices for web3 tools — they score within 0.15 of each other on our composite (3.1 vs 3.1). Pick based on which source you trust more, not on raw score.
Side by side
3.1/5
3.1/5
Where they differ
- Trigger clarity. trigger clarity: eval-driven-dev is clearly stronger (4.0 vs 4.5). For workloads where this dimension matters, prefer eval-driven-dev.
- Output specificity. output specificity: cost-export is clearly stronger (4.5 vs 4.0). For workloads where this dimension matters, prefer cost-export.
- Scope precision. scope precision: cost-export and eval-driven-dev score essentially the same (4.5 vs 4.5). Neither has an edge here.
- Self-containment. self-containment: eval-driven-dev is clearly stronger (3.5 vs 4.0). For workloads where this dimension matters, prefer eval-driven-dev.
- Reusability. reusability: cost-export and eval-driven-dev score essentially the same (3.5 vs 3.5). Neither has an edge here.
How to decide
- Pick cost-export if you weight community adoption — its upstream has more GitHub stars.
- If neither of the above tips the scale, default to the one whose author you've used before in other contexts — ecosystem familiarity compounds.
Scenario by scenario
| Scenario | Winner | Why |
|---|---|---|
| Agent must auto-select between many web3 tools | eval-driven-dev | Trigger clarity decides — clearer triggers reduce routing errors. |
| Output must be a specific file format or structured data | cost-export | Output specificity determines whether downstream tools can rely on the result. |
| Skill must be readable and complete out of the box | eval-driven-dev | 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, cost-export or eval-driven-dev?
- Neither is clearly better — they score within 0.15 of each other on our 0–5 composite. The decision should be driven by source preference, ecosystem fit, or specific dimension priorities (see "How to decide" above).
- Are cost-export and eval-driven-dev both free to use?
- Both skills are free and open-source (or freely licensed). cost-export: See source repo. eval-driven-dev: 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 cost-export and eval-driven-dev 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?
- cost-export is sourced from skillsmp.com (curated marketplace). eval-driven-dev is sourced from skillsmp.com (curated marketplace). We verify each skill across multiple sources where possible; cost-export appears in 1 source, eval-driven-dev in 1.