Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add OKHP3/skillz --skill okhp3-artifact-validationgit clone --depth 1 https://github.com/OKHP3/skillzWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/okhp3/skillz/okhp3-artifact-validation)<a href="https://agentmods.dev/skills/okhp3/skillz/okhp3-artifact-validation"><img src="https://agentmods.dev/badge/skills/okhp3/skillz/okhp3-artifact-validation/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/okhp3/skillz/okhp3-artifact-validation"><img src="https://agentmods.dev/badge/skills/okhp3/skillz/okhp3-artifact-validation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00070 | $0.00670 |
| Opus 5 | $0.00035 | $0.00335 |
| Sonnet 5 | $0.00014 | $0.00134 |
| Haiku 4.5 | $0.00007 | $0.00067 |
Grade A, and why
okhp3-artifact-validation scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 66 lines — stays where its author put it; the contents beside it link to each section on GitHub.
okhp3-artifact-validation
OverKill Hill P³ · overkillhill.com · github.com/OKHP3
Output contract
Return the artifact path and scope, checks run, status for each check, evidence,
blockers, warnings, checks not run, and the next action. A missing validator is
NOT RUN or BLOCKED, never PASS. Keep validation read-only unless a
separate repair request authorizes a specific change.
Choose checks proportionate to the artifact and consequence.
Mechanical floor
For project-wide or structural work, first identify the project-declared validator and confirm that it exists. Run it from the project root or the location its own instructions require. Do not assume a particular filename, operating system command, or repository layout.
For a skill, also run the host's available skill validator when one is available and confirm its description matches its actual trigger boundary. For code or generated files, run the targeted parser, test, linter, build, or render check appropriate to that format.
Judgment checks
Confirm:
- the real path and changed scope;
- unrelated owner work remains intact;
- factual claims and citations are supportable;
- evidence tiers are visible where they affect future decisions;
- no secret, confidential, employer, client, or accidental generated material entered scope;
- links, names, metadata, and referenced resources exist;
- the artifact satisfies the current request rather than only its format;
- remaining uncertainty and the next action are explicit.
Report each meaningful check as PASS, FAIL, WARN, BLOCKED, or
NOT RUN. Never convert an unavailable check into a pass. A script pass is a
mechanical floor, not a quality or publication verdict.
About
Built by Jamie Hill · OverKill Hill P³ Published at github.com/OKHP3 Part of the OKHP3/skillz Agent Skill library. MIT License -- free to use, fork, and adapt. A nod to the source is appreciated.
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 66 lines · 70 tokens per session scan A 6c8692beb0a3
okhp3-artifact-validation is a skill published in the GitHub repository OKHP3/skillz (3 stars, last pushed today), licensed MIT. It adds 70 tokens to every session and 670 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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