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 striderZA/OpenCodeGameStudios --skill skill-testgit clone --depth 1 https://github.com/striderZA/OpenCodeGameStudiosWrote 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/striderza/opencodegamestudios/skill-test)<a href="https://agentmods.dev/skills/striderza/opencodegamestudios/skill-test"><img src="https://agentmods.dev/badge/skills/striderza/opencodegamestudios/skill-test/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/striderza/opencodegamestudios/skill-test"><img src="https://agentmods.dev/badge/skills/striderza/opencodegamestudios/skill-test.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 | $0.00031 | $0.03266 |
| Opus 5.5 | $0.00012 | $0.01306 |
| Sonnet 5.5 | $0.00006 | $0.00653 |
| Haiku 4.5 | $0.00003 | $0.00327 |
Grade A, and why
skill-test 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 1mo 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.
This is a copy
92% identical to skill-test — 400 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 357 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Skill Test
Validates .agents/skills/*/SKILL.md files for structural compliance and
behavioral correctness. No external dependencies — runs entirely within the
existing skill/hook/template architecture.
Four modes:
| Mode | Command | Purpose | Token Cost |
|---|---|---|---|
static |
/skill-test static [name|all] |
Structural linter — 7 compliance checks per skill | Low (~1k/skill) |
spec |
/skill-test spec [name] |
Behavioral verifier — evaluates assertions in test spec | Medium (~5k/skill) |
category |
/skill-test category [name|all] |
Category rubric — checks skill against its category-specific metrics | Low (~2k/skill) |
audit |
/skill-test audit |
Coverage report — skills, agent specs, last test dates | Low (~3k total) |
Phase 1: Parse Arguments
Determine mode from the first argument:
static [name]→ run 7 structural checks on one skillstatic all→ run 7 structural checks on all skills (Glob.agents/skills/*/SKILL.md)spec [name]→ read skill + test spec, evaluate assertionscategory [name]→ run category-specific rubric fromCCGS Skill Testing Framework/quality-rubric.mdcategory all→ run category rubric for every skill that has acategory:in catalogaudit(or no argument) → read catalog, list all skills and agents, show coverage
If argument is missing or unrecognized, output usage and stop.
Phase 2A: Static Mode — Structural Linter
For each skill being tested, read its SKILL.md fully and run all 7 checks:
Check 1 — Required Frontmatter Fields
The file must contain all of these in the YAML frontmatter block:
name:description:argument-hint:user-invocable:allowed-tools:
FAIL if any are absent.
Check 2 — Multiple Phases
The skill must have ≥2 numbered phase headings. Look for patterns like:
## Phase Nor## Phase N:## N.(numbered top-level sections)- At least 2 distinct
##headings if phases aren't explicitly numbered
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.
- 1mo ago First seen · 357 lines · 31 tokens per session scan A ef9cf919b22d
skill-test is a skill published in the GitHub repository striderZA/OpenCodeGameStudios (104 stars, last pushed 22d ago), licensed MIT. It adds 31 tokens to every session and 3,266 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 92% identical to skill-test, differing in 400 lines, and is treated as a copy.
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