coverage-check

coverage-check is a skill for Claude Code from AI-Unified-Process/marketplace. It costs 218 tokens per session (2,143 once invoked), scanned A, original, Apache-2.0.

A review tool that compares a written use case or test case with the code and tests meant to implement it.

In plain words
What is it for?
Checking success steps, alternative paths, business rules, starting conditions, and expected results for UC-XXX or TC-XXX artifacts.
Why use it?
It reveals missing or outdated implementation and test coverage before gaps are overlooked.

Skill for Claude Code

Written for Claude Code: $ARGUMENTS substitution. Also seen: mentions subagents; mentions Claude Code.

Part of the aiup-vaadin-jooq plugin — 5 skills, 1 agent shipped together

Good fit Checking success steps, alternative paths, business rules, starting conditions, and expected results for UC-XXX or TC-XXX artifacts.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ai-unified-process/marketplace/coverage-check
Install

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.

Any agent
npx skills add AI-Unified-Process/marketplace --skill coverage-check
Clone the repo
git clone --depth 1 https://github.com/AI-Unified-Process/marketplace

Made for: Claude Code.

Or install aiup-vaadin-jooq, the plugin that ships this one along with the rest of its 5 skills, 1 agent.

Wrote 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.

agentmods badge for coverage-check

README.md
[![agentmods](https://agentmods.dev/badge/skills/ai-unified-process/marketplace/coverage-check/github.svg)](https://agentmods.dev/skills/ai-unified-process/marketplace/coverage-check)
Your own site
<a href="https://agentmods.dev/skills/ai-unified-process/marketplace/coverage-check"><img src="https://agentmods.dev/badge/skills/ai-unified-process/marketplace/coverage-check/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.

agentmods 80×15 button for coverage-check

Your own site · 80×15
<a href="https://agentmods.dev/skills/ai-unified-process/marketplace/coverage-check"><img src="https://agentmods.dev/badge/skills/ai-unified-process/marketplace/coverage-check.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 218 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,143 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 157
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00218 $0.02143
Opus 5 $0.00109 $0.01071
Sonnet 5 $0.00044 $0.00429
Haiku 4.5 $0.00022 $0.00214

Measured 10d ago against content hash 976f31533a1a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

coverage-check 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 10d 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.

aiup-vaadin-jooq/skills/coverage-check/SKILL.md · 159 lines

How it starts

The opening of the file, as written. The whole thing — 159 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Coverage Check

Instructions

Audit the artifact $ARGUMENTS — a use case (UC-XXX) or a test case (TC-XXX) — against the code and tests that are supposed to realize it, and report the result.

This skill is the front door to the read-only uc-coverage sub-agent of this plugin. The audit checklist — how coverage units are derived, which markers to search for, how each unit is judged — lives in agents/uc-coverage.md and is deliberately not repeated here, so the two cannot drift apart. Your job is argument parsing, delegation, faithful presentation of the report, and offering the next step.

The report is the deliverable. You do not fix what it finds.

Arguments

Everything is parsed out of $ARGUMENTS; the tokens may appear in any order.

Token Meaning
UC-001, UC001, uc 1, or a path to a specification the artifact to audit — normalize to UC-001, zero-padded to three digits
TC-001, TC001 audit a test case journey instead
implementation, impl, code mode implementation
tests, test mode tests
both, or no mode token at all mode both (the default)
wip, --wip, work in progress, in progress, draft pass the work-in-progress qualifier through
two or more ids a bounded sweep of exactly those ids
nothing see Sweeps

Read the full file on GitHub · 159 lines

Changes

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.

  1. 10d ago First seen · 159 lines · 218 tokens per session scan A 976f31533a1a

Subscribe to this mod's changes

coverage-check is a skill published in the GitHub repository AI-Unified-Process/marketplace (123 stars, last pushed 11d ago), licensed Apache-2.0. It adds 218 tokens to every session and 2,143 once invoked, about $0.0011 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 2026-08-30.

Related

Other skills, from other repositories

research-engineer

An uncompromising Academic Research Engineer. Operates with absolute scientific rigor, objective criticism, and zero flair. Focuses on theoretical correctness, formal verification, and optimal implementation across any required technology.

davila7/claude-code-templates · 43 tokens

tika-eval-compare

Compare extracts from two Tika builds over a corpus to detect regressions in content, encoding, exceptions, and embedded-document handling. Use for "compare before/after extracts", "eval this change against the corpus".

apache/tika · 50 tokens

neuron-evaluation-engineer

Create and run AI evaluations with datasets, assertions, and output drivers in Neuron AI. Use this skill whenever the user mentions evaluation, testing AI systems, creating evaluators, dataset-driven testing, assertion-based validation, or wants to measure AI system performance. Also trigger for tasks involving…

neuron-core/neuron-ai · 77 tokens

jetson-validate-image

Use after jetson-flash-image to run static BSP checks, on-target smoke/regression tests on a flashed DUT, or both. Not for build or flash steps. Triggers: validate bsp, on-target validation.

NVIDIA/skills · 50 tokens

atmos-validation

Validate Atmos projects, components, arbitrary JSON Schema inputs, EditorConfig, and GitHub Actions; use affected-file selection and native CI annotations.

cloudposse/atmos · 31 tokens

skill-benchmark

Benchmark AI skill effectiveness by measuring implementation quality against legacy constraints.

HoangNguyen0403/agent-skills-standard · 16 tokens