coverage

coverage is a skill for Codex from bestagentkits/agency-skills. It costs 39 tokens per session (675 once invoked), scanned A, a copy of coverage, MIT.

A workflow for finding gaps in automated test coverage. It maps pages, components, API endpoints, and important user flows, then compares them with existing tests in a coverage matrix.

In plain words
What is it for?
Use it to review coverage for routes, interactive components, APIs, authentication, checkout, onboarding, and other critical workflows.
Why use it?
It shows which parts of an application are tested and which are missing, so untested areas are easier to spot. It turns scattered test files into a single view of coverage.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: mentions subagents.

Good fit Use it to review coverage for routes, interactive components, APIs, authentication, checkout, onboarding, and other critical workflows.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/bestagentkits/agency-skills/coverage
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 bestagentkits/agency-skills --skill coverage
Clone the repo
git clone --depth 1 https://github.com/bestagentkits/agency-skills

Made for: Codex.

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

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/bestagentkits/agency-skills/coverage"><img src="https://agentmods.dev/badge/skills/bestagentkits/agency-skills/coverage.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 675 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.
Origin 100% copy Near-identical to another mod 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 $0.00039 $0.00675
Opus 5 $0.00019 $0.00338
Sonnet 5 $0.00008 $0.00135
Haiku 4.5 $0.00004 $0.00068

Measured 6d ago against content hash 82e86161745b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

coverage 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 6d 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.

Origin

This is a copy

100% identical to coverage — 2 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.

skills/claude-skills/coverage/SKILL.md · 99 lines

How it starts

The opening of the file, as written. The whole thing — 99 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Analyze Test Coverage Gaps

Map all testable surfaces in the application and identify what's tested vs. what's missing.

Steps

1. Map Application Surface

Use the Explore subagent to catalog:

Routes/Pages:

  • Scan route definitions (Next.js app/, React Router config, Vue Router, etc.)
  • List all user-facing pages with their paths

Components:

  • Identify interactive components (forms, modals, dropdowns, tables)
  • Note components with complex state logic

API Endpoints:

  • Scan API route files or backend controllers
  • List all endpoints with their methods

User Flows:

  • Identify critical paths: auth, checkout, onboarding, core features
  • Map multi-step workflows

2. Map Existing Tests

Scan all *.spec.ts / *.spec.js files:

  • Extract which pages/routes are covered (by page.goto() calls)
  • Extract which components are tested (by locator usage)
  • Extract which API endpoints are mocked or hit
  • Count tests per area

3. Generate Coverage Matrix

## Coverage Matrix

| Area | Route | Tests | Status |
|---|---|---|---|
| Auth | /login | 5 | ✅ Covered |
| Auth | /register | 0 | ❌ Missing |
| Auth | /forgot-password | 0 | ❌ Missing |
| Dashboard | /dashboard | 3 | ⚠️ Partial (no error states) |
| Settings | /settings | 0 | ❌ Missing |
| Checkout | /checkout | 8 | ✅ Covered |

4. Prioritize Gaps

Rank uncovered areas by business impact:

  1. Critical — auth, payment, core features → test first
  2. High — user-facing CRUD, search, navigation
  3. Medium — settings, preferences, edge cases
  4. Low — static pages, about, terms

5. Suggest Test Plan

For each gap, recommend:

  • Number of tests needed
  • Which template from templates/ to use
  • Estimated effort (quick/medium/complex)
## Recommended Test Plan

### Priority 1: Critical
1. /register (4 tests) — use auth/registration template — quick
2. /forgot-password (3 tests) — use auth/password-reset template — quick

### Priority 2: High
3. /settings (4 tests) — use settings/ templates — medium
4. Dashboard error states (2 tests) — use dashboard/data-loading template — quick

Read the full file on GitHub · 99 lines

Files

What ships with it

1 file 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.

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. 6d ago First seen · 99 lines · 39 tokens per session scan A 82e86161745b

Subscribe to this mod's changes

coverage is a skill published in the GitHub repository bestagentkits/agency-skills (10 stars, last pushed 2mo ago), licensed MIT. It adds 39 tokens to every session and 675 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to coverage, differing in 2 lines, and is treated as a copy.

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