coverage-gaps

coverage-gaps is a command for Claude Code from cwoodruff/dotnet-claude-workshop-content. It costs 12 tokens per session (191 once invoked), scanned A, original, MIT.

A command that reviews an application's tests against its public behavior and reports missing or weak coverage.

In plain words
What is it for?
Use it to find missing failure and boundary tests, identify flaky or inappropriate test patterns, rank test debt by risk, and produce a named top-ten list of tests to add.
Why use it?
It connects endpoints, business logic, repositories, and existing tests to reveal important paths that are untested or only checked on the happy path.

Command for Claude Code

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

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.

agentmods
npx agentmods add commands/cwoodruff/dotnet-claude-workshop-content/coverage-gaps
Clone the repo
git clone --depth 1 https://github.com/cwoodruff/dotnet-claude-workshop-content

Made for: Claude Code.

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-gaps

README.md
[![agentmods](https://agentmods.dev/badge/commands/cwoodruff/dotnet-claude-workshop-content/coverage-gaps.svg)](https://agentmods.dev/commands/cwoodruff/dotnet-claude-workshop-content/coverage-gaps)
Your own site
<a href="https://agentmods.dev/commands/cwoodruff/dotnet-claude-workshop-content/coverage-gaps"><img src="https://agentmods.dev/badge/commands/cwoodruff/dotnet-claude-workshop-content/coverage-gaps.svg" alt="Measured on agentmods" height="20"></a>
Per session 12 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 191 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00012 $0.00191
Opus 5 $0.00006 $0.00096
Sonnet 5 $0.00002 $0.00038
Haiku 4.5 $0.00001 $0.00019

Measured 5d ago against content hash 723a1232492c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

coverage-gaps 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 5d 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

Copies of this mod

1 near-identical copy found in the catalogue:

dotnet-claude-code-kit/.claude/commands/coverage-gaps.md · 16 lines

What it actually says

Analyze test coverage gaps for $ARGUMENTS (default: whole solution).

  1. Enumerate the public surface: endpoints, Core services/domain logic, Data repositories.
  2. Enumerate existing tests and map them to that surface.
  3. Report:
    • Untested critical paths — endpoints or business rules with zero coverage, ranked by risk (writes > reads, money/data-integrity logic first)
    • Weakly tested areas — only happy path covered; list the missing failure/boundary cases per item
    • Test debt — flaky patterns, real-dependency usage in unit tests, naming violations
  4. Finish with a prioritized top-10 list of specific tests to write, each with its exact proposed name (MethodName_Scenario_ExpectedResult).

Offer to hand the top items to the test-writer subagent.

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. 5d ago First seen · 16 lines · 12 tokens per session scan A 723a1232492c

Subscribe to this mod's changes

coverage-gaps is a command published in the GitHub repository cwoodruff/dotnet-claude-workshop-content (2 stars, last pushed 1mo ago), licensed MIT. It adds 12 tokens to every session and 191 once invoked, about $0.0001 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.