Validate Done Certificate
Discharge a task's done certificate against its implementation — collect each obligation's named evidence, run its checks, set each status, trace regressions, and derive a DONE / PARTIAL / NOT_DONE verdict by the certificate's rubric. The completeness gate after a spec-builder task is reviewed; when a task has no authored certificate, it derives obligations from the DoD checklist and discharges those the same way. It runs the protocol, it does not author it (that is done-certificates' job). Triggers on "validate the done certificate", "is task NN done", or "check the implementation against its definition of done".
Security AStatic scan found no risk patternsHow grading works ›
From the source SKILL.md
A skill for discharging a done certificate: opening the blank verification protocol the done-certificates skill authored for a task, doing exactly what each obligation names, and deriving whether the task is DONE. It is the validating agent that companion was written for — it supplies the answers, it does not write the questions.
What this skill does
Validate Done Certificate is a community-contributed Claude Code skill in the education-learning sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/validate-done-certificate/ and loads when your prompt matches the skill's trigger.
Who uses this skill
The Validate Done Certificate Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 174,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).
How to install
Free
Manual install (2 steps)
mkdir -p ~/.claude/skills/validate-done-certificate
curl -L https://claudskills.com/skills/validate-done-certificate/SKILL.md \
-o ~/.claude/skills/validate-done-certificate/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/validate-done-certificate/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/validate-done-certificate/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\validate-done-certificate\SKILL.md on Windows. See the full install guide for step-by-step instructions.
Telegram
📱 Install from your phone or desktop Telegram
Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →
Pro
One-click install via the desktop app
The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.
Pro
For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.
Frequently asked questions
How do I install the Validate Done Certificate Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy
SKILL.md from the source repository to
~/.claude/skills/validate-done-certificate/SKILL.md and restart Claude Code. Both flows are detailed at
claudskills.com/install/.
What does the Validate Done Certificate skill do?
Discharge a task's done certificate against its implementation — collect each obligation's named evidence, run its checks, set each status, trace regressions, and derive a DONE / PARTIAL / NOT_DONE verdict by the certificate's rubric. The completeness gate after a spec-builder task is reviewed; when a task has no authored certificate, it derives obligations from the DoD checklist and discharges those the same way. It runs the protocol, it does not author it (that is done-certificates' job). Triggers on "validate the done certificate", "is task NN done", or "check the implementation against its definition of done".
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Validate Done Certificate skill?
Use Validate Done Certificate when your Claude Code task falls under the General category — specifically in the education learning area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Validate Done Certificate" or describe the task and let Claude pick). Browse related skills at
/category/general/.
What is a Claude Code skill and how does the Validate Done Certificate skill fit in?
A Claude Code skill is a
SKILL.md file that lives under
~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Validate Done Certificate is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at
/learn/what-is-a-claude-skill/.
Attribution & license
Cite this skill
If you reference this skill in a blog post, paper, or documentation, you can cite it as:
APA
antstanley. (2026). Validate Done Certificate [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/validate-done-certificate/
BibTeX
@misc{validate-done-certificate-2026,
author = {antstanley},
title = {Validate Done Certificate [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/validate-done-certificate/}
}Embed this skill
Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →
Badge
[](https://claudskills.com/skills/validate-done-certificate/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)
<script>
<script src="https://claudskills.com/embed/validate-done-certificate.js" async></script>
<iframe>
<iframe src="https://claudskills.com/embed/validate-done-certificate.html" width="100%" height="160" frameborder="0" loading="lazy" title="ClaudSkills: Validate Done Certificate"></iframe>
Security scan
Grade A · scanned 2026-08-02 — free static scan against the OWASP Agentic Skills Top 10.
The scan flagged 1 of 10 categories (filesystem), including lower-severity patterns. Patterns shown inside code fences are weighted as examples rather than instructions — read the grading methodology for what this does and does not guarantee.
- ✓ Prompt injection
- ✓ Data exfiltration
- ✓ Supply chain
- ✓ Reverse shell
- ✓ Credentials
- ✓ Execution
- ⚠ Filesystem
- ✓ Persistence
- ✓ Obfuscation
- ✓ Network
Show this grade on your repo (click to copy):
[](https://claudskills.com/skills/validate-done-certificate/#security)
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