K-12 Core Literacy Lesson Design
THU-MAIC/OpenMAIC
Designs a Chinese K-12 classroom for one OpenMAIC stage around the core-literacy model, using authentic tasks, performance assessment and observable evidence.
Audit a proposed assessment for construct validity, reliability, and alignment to learning objectives.
Install Assessment Validity Checker
$ npx skills add GarethManning/education-agent-skills --skill assessment-validity-checker -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install GarethManning/education-agent-skills assessment-validity-checker --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/GarethManning/education-agent-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/curriculum-assessment/assessment-validity-checker .claude/skills/assessment-validity-checker && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "assessment-validity-checker" agent skill from https://github.com/GarethManning/education-agent-skills/tree/main/skills/curriculum-assessment/assessment-validity-checker into .claude/skills/assessment-validity-checker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "assessment-validity-checker", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/GarethManning/education-agent-skills/tree/main/skills/curriculum-assessment/assessment-validity-checkerType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add GarethManning/education-agent-skills --skill assessment-validity-checker -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install GarethManning/education-agent-skills assessment-validity-checker --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/GarethManning/education-agent-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/curriculum-assessment/assessment-validity-checker .agents/skills/assessment-validity-checker && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "assessment-validity-checker" agent skill from https://github.com/GarethManning/education-agent-skills/tree/main/skills/curriculum-assessment/assessment-validity-checker into .agents/skills/assessment-validity-checker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "assessment-validity-checker", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add GarethManning/education-agent-skills --skill assessment-validity-checker -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install GarethManning/education-agent-skills assessment-validity-checker --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/GarethManning/education-agent-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/curriculum-assessment/assessment-validity-checker .cursor/skills/assessment-validity-checker && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "assessment-validity-checker" agent skill from https://github.com/GarethManning/education-agent-skills/tree/main/skills/curriculum-assessment/assessment-validity-checker into .cursor/skills/assessment-validity-checker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "assessment-validity-checker", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/GarethManning/education-agent-skills.git --path skills/curriculum-assessment/assessment-validity-checker--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add GarethManning/education-agent-skills --skill assessment-validity-checker -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install GarethManning/education-agent-skills assessment-validity-checker --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/GarethManning/education-agent-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/curriculum-assessment/assessment-validity-checker .gemini/skills/assessment-validity-checker && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "assessment-validity-checker" agent skill from https://github.com/GarethManning/education-agent-skills/tree/main/skills/curriculum-assessment/assessment-validity-checker into .gemini/skills/assessment-validity-checker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "assessment-validity-checker", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install GarethManning/education-agent-skills assessment-validity-checkerInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add GarethManning/education-agent-skills --skill assessment-validity-checker -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/GarethManning/education-agent-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/curriculum-assessment/assessment-validity-checker .github/skills/assessment-validity-checker && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "assessment-validity-checker" agent skill from https://github.com/GarethManning/education-agent-skills/tree/main/skills/curriculum-assessment/assessment-validity-checker into .github/skills/assessment-validity-checker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "assessment-validity-checker", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add GarethManning/education-agent-skills --skill assessment-validity-checker -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install GarethManning/education-agent-skills assessment-validity-checker --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/GarethManning/education-agent-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/curriculum-assessment/assessment-validity-checker .opencode/skills/assessment-validity-checker && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "assessment-validity-checker" agent skill from https://github.com/GarethManning/education-agent-skills/tree/main/skills/curriculum-assessment/assessment-validity-checker into .opencode/skills/assessment-validity-checker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "assessment-validity-checker", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
assessment-validity-checker- GitHub stars
- 840
- Token cost
- ~4.9k tokens
- SKILL.md length
- 1,690 words
- Files
- 1
- Skills in repo
- 160
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Audit a proposed assessment for construct validity, reliability, and alignment to learning objectives.
- Works in 5 steps: MAJOR: Construct-irrelevant variance… → MAJOR: Construct-irrelevant variance… → MODERATE: Construct underrepresentation.… → …
- Quality-assuring assessments before deployment
- SKILL.md covers What This Skill Does, Evidence Foundation, Input Schema and Prompt, plus 3 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Assessment Validity Checker is an agent skill from GarethManning/education-agent-skills. Audit a proposed assessment for construct validity, reliability, and alignment to learning objectives. Use when reviewing or quality-assuring assessments before deployment.
Its SKILL.md is about 4.9k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Education, covering Lesson planning. The repository describes itself as: 165 evidence-grounded AI skills for teachers, school leaders and EdTech builders—pedagogy, learning science, curriculum, assessment and regeneration. Claude, Codex and Hermes.
When your agent uses it
- Quality-assuring assessments before deployment
- Tasks that involve Lesson planning
Example prompts
- “/assessment-validity-checker”
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- MAJOR: Construct-irrelevant variance from visual design. 30% of marks assess design skill, not geography. This means the assessment score…
- MAJOR: Construct-irrelevant variance from presentation. 30% of marks assess public speaking, disadvantaging EAL, anxious, and…
- MODERATE: Construct underrepresentation. Effects of climate change are not assessed despite being in the intended learning. Explanation of…
- MODERATE: Low reliability. "Visually appealing" is subjective. Presentation marks lack a rubric. Content marks don't distinguish quality…
- MINOR: Consequential validity. Mark weighting incentivises decoration over learning.
What it can do on your machine
Read from SKILL.md and the folder at commit 6bbbce4. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Assessment Validity Checker loads about 4.9k tokens when it runs. Until then it costs about 50 tokens; SKILL.md has 1,690 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,690 words (~4,918 tokens).
“Evaluates a proposed assessment against three dimensions: validity (does it measure what it claims to measure?), reliability (would different markers agree on the score?), and authenticity (is the task meaningful and does it require genuine demonstration of the intended learning?)…”
- name
- assessment-validity-checker
- disable-model-invocation
- false
- user-invocable
- true
- effort
- medium
- skill_id
- curriculum-assessment/assessment-validity-checker
- skill_name
- Assessment Validity Checker
- domain
- curriculum-assessment
- version
- 1.0
- evidence_strength
- strong
- evidence_sources
- Wiliam (2011) — Embedded Formative Assessment, Messick (1989) — Validity in educational measurement: a unified validity framework, Kane (2006) — Validation as…
- output_schema.type
- object
Files
Just SKILL.md in skills/curriculum-assessment/assessment-validity-checker of GarethManning/education-agent-skills.
Open the folder on GitHubat commit 6bbbce4
Compare with similar skills
Assessment Validity Checker next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Assessment Validity Checker this skillGarethManning/education-agent-skills | 840 | — | ~4.9k | Automated safety check: Pass | Custom licence | |
| K-12 Core Literacy Lesson DesignTHU-MAIC/OpenMAIC | 40k | — | ~2.4k | Automated safety check: Pass | MIT | |
| Zone of Proximal Development Practice LessonsTHU-MAIC/OpenMAIC | 40k | — | ~1.1k | Automated safety check: Pass | MIT | |
| Curriculum PlannerTHU-MAIC/OpenMAIC | 40k | — | ~2.8k | Automated safety check: Pass | MIT | |
| Deep Interactive Course DesignTHU-MAIC/OpenMAIC | 40k | — | ~681 | Automated safety check: Pass | MIT | |
| Learndair-ai/dair-academy-plugins | 614 | 2 repos | ~1.3k | Automated safety check: Pass | MIT |
Similar skills
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Designs a review-and-practice lesson around an independent first attempt, targeted feedback, supported practice, a fresh independent check and a next step.
Curriculum Planner
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Plans a multi-classroom series such as a seven-day course, clarifies the brief in rounds, gets sign-off on the full lesson list, then builds each stage in a shared folder.
Deep Interactive Course Design
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Plans online courses so learners manipulate simulations, diagrams, code, games or 3D scenes on most pages, with slides only for the opening and the close.
Learn
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Help a user learn a topic through adaptive tutoring, lesson planning, practice, retrieval checks, explanations, study guides, or exercises.
Feynman Learning Cycle Classroom
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Turns a concept or lesson material into a Feynman-style classroom where learners explain first, find their smallest gap, rebuild the idea and apply it somewhere new.
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Categories
Questions about Assessment Validity Checker
What does Assessment Validity Checker do?
Audit a proposed assessment for construct validity, reliability, and alignment to learning objectives. Assessment Validity Checker is an agent skill from GarethManning/education-agent-skills. Audit a proposed assessment for construct validity, reliability, and alignment to learning objectives.
When should I use Assessment Validity Checker?
Assessment Validity Checker fits situations like: quality-assuring assessments before deployment; tasks that involve Lesson planning.
How do I install Assessment Validity Checker in Claude Code?
Run `npx skills add GarethManning/education-agent-skills --skill assessment-validity-checker -a claude-code`. Or copy the skill folder (skills/curriculum-assessment/assessment-validity-checker in GarethManning/education-agent-skills) into .claude/skills/assessment-validity-checker in your project. Claude Code loads it when a task matches its description.
How do I install Assessment Validity Checker in Codex?
Run `npx skills add GarethManning/education-agent-skills --skill assessment-validity-checker -a codex`. Or copy the skill folder (skills/curriculum-assessment/assessment-validity-checker in GarethManning/education-agent-skills) into .agents/skills/assessment-validity-checker in your project. Codex loads it when a task matches its description.
Can I use Assessment Validity Checker in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add GarethManning/education-agent-skills --skill assessment-validity-checker -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/assessment-validity-checker, .gemini/skills/assessment-validity-checker, .github/skills/assessment-validity-checker and .opencode/skills/assessment-validity-checker in your project.
What does Assessment Validity Checker need to run?
SKILL.md names no scripts, command-line tools or credentials: Assessment Validity Checker is instructions for the agent only.
Does Assessment Validity Checker access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Assessment Validity Checker safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Assessment Validity Checker use?
Assessment Validity Checker has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Assessment Validity Checker use?
About 4.9k tokens (SKILL.md is roughly 20k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Assessment Validity Checker?
Skills that share tags, products or a category with Assessment Validity Checker: K-12 Core Literacy Lesson Design (THU-MAIC/OpenMAIC, 40k stars), Zone of Proximal Development Practice Lessons (THU-MAIC/OpenMAIC, 40k stars), Curriculum Planner (THU-MAIC/OpenMAIC, 40k stars) and Deep Interactive Course Design (THU-MAIC/OpenMAIC, 40k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Assessment Validity Checker?
GarethManning (a GitHub user) maintains it in GarethManning/education-agent-skills, which has 840 GitHub stars. The repository holds 160 skills in this directory. The repository was last updated on August 28, 2026.
Source: GarethManning/education-agent-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.