What is assessment-validity-checker?
assessment-validity-checker is a Claude skill by GarethManning that audits assessments for validity, reliability, and learning alignment. It is listed under Security and has 876 GitHub stars.
| Type | Claude skill |
|---|---|
| Author | GarethManning |
| Repository | GarethManning/education-agent-skills |
| Popularity | 876 GitHub stars |
| Category | Security |
| Security | Low risk (100/100) |
| Rank | #702 of 1,262 Claude skills; #16 in Security |
| SKILL.md length | 248 lines |
| Last commit | 2026-08-28 |
| Stars this week | +29 |
Is assessment-validity-checker safe to install?
assessment-validity-checker scores 100/100 on the MCPMods security check: Low risk. No checks raised a concern. It passed 9 of 9 checks.
Skill results come from a static scan of its SKILL.md for instruction overrides, hidden actions, risky commands and credential access.
| Check | Result |
|---|---|
| No instruction-override phrases | Pass |
| No hidden actions | Pass |
| No pipe-to-shell installers | Pass |
| No obfuscated code | Pass |
| No destructive commands | Pass |
| Doesn't ask for keys or credentials | Pass |
| No network requests | Pass |
| No shell commands | Pass |
| Installs no packages | Pass |
How do I install assessment-validity-checker?
- Install with the skills CLI. Works for Claude Code and other agents that read skills.
npx skills add https://github.com/GarethManning/education-agent-skills --skill assessment-validity-checker
- Or copy it by hand. Claude Code loads any folder with a SKILL.md from ~/.claude/skills.
git clone https://github.com/GarethManning/education-agent-skills cp -r education-agent-skills/skills/curriculum-assessment/assessment-validity-checker ~/.claude/skills/assessment-validity-checker
- Use it. Claude loads the skill when a task matches its description. You can also name it in your prompt.
Use the assessment-validity-checker skill to …
Or ask Claude to set it up
Paste this into Claude Code and it installs assessment-validity-checker for you:
Install the "assessment-validity-checker" skill from https://github.com/GarethManning/education-agent-skills/tree/main/skills/curriculum-assessment/assessment-validity-checker into ~/.claude/skills, then tell me in one line what it does.
More from GarethManning/education-agent-skills
This repository has 5 Claude skills on MCPMods.
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- learning-target-authoring-guide: Authors observable competency learning targets across developmental bands (Low risk)
- progressive-hint-ladder: Provides graduated hints while preserving learner thinking and agency (Low risk)
- competency-unpacker: Unpacks broad competencies into assessable sub-skills and success criteria (Low risk)