review-tests

review-tests is a skill for Claude Code from mrinalwadhwa/fluent. It costs 36 tokens per session (344 once invoked), scanned A, original, Apache-2.0.

A review guide for judging whether a codebase has enough useful tests. It examines changed tests, related code, missing cases, and the test suite as a whole.

In plain words
What is it for?
Use it when reviewing a code change, checking a new or edited test, or auditing the tests across a codebase.
Why use it?
It helps find code paths and edge cases that tests do not cover, as well as tests that are unlikely to catch bugs or support safe refactoring.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the fluent plugin — 6 skills shipped together

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 skills/mrinalwadhwa/fluent/review-tests
Any agent
npx skills add mrinalwadhwa/fluent --skill review-tests
Clone the repo
git clone --depth 1 https://github.com/mrinalwadhwa/fluent

Made for: Claude Code.

Or install fluent, the plugin that ships this one along with the rest of its 6 skills.

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 review-tests

README.md
[![agentmods](https://agentmods.dev/badge/skills/mrinalwadhwa/fluent/review-tests.svg)](https://agentmods.dev/skills/mrinalwadhwa/fluent/review-tests)
Your own site
<a href="https://agentmods.dev/skills/mrinalwadhwa/fluent/review-tests"><img src="https://agentmods.dev/badge/skills/mrinalwadhwa/fluent/review-tests.svg" alt="Measured on agentmods" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 344 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 $0.00036 $0.00344
Opus 5 $0.00018 $0.00172
Sonnet 5 $0.00007 $0.00069
Haiku 4.5 $0.00004 $0.00034

Measured 6d ago against content hash e7bbb897769b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

review-tests 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.

skill-migrations/v0.1.4/review-tests/SKILL.md · 30 lines

What it actually says

Purpose

Decide whether the code under review is adequately tested. Identify testable code that lacks tests, and improvements that would make the test suite more likely to catch bugs or the codebase safer to refactor.

Scope

The invoking layer decides what's in scope. For a diff-scoped review, that's the code and tests changed in the diff. For a full-codebase audit, that's the entire codebase and test suite. Check the tests for quality and check the code for tests that should exist but don't.

Method

  1. Read the code under review to understand what should be tested.

  2. Read references/tests.md for test-writing standards. Read any related guides it points to for the code under review.

  3. For each in-scope test:

    • Read it alongside the code it exercises, its setup and fixtures, and any shared helpers.
    • Evaluate against the standards in references/tests.md.
    • Identify improvements.
  4. Check the code for behavior that lacks tests. For a diff-scoped review, look for changed code paths, edge cases, and error paths that no test covers. For a full-codebase audit, look for significant components with no test coverage.

  5. For each improvement, decide if it blocks shipping. Tests that pass without verifying behavior, flaky tests, and testable code shipped without tests typically block. Vague names, duplicated helpers, and style issues typically don't.

The invoking layer may add checks in addition to those above.

Files

What ships with it

2 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.

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 · 30 lines · 36 tokens per session scan A e7bbb897769b

Subscribe to this mod's changes

review-tests is a skill published in the GitHub repository mrinalwadhwa/fluent (87 stars, last pushed 5d ago), licensed Apache-2.0. It adds 36 tokens to every session and 344 once invoked, about $0.0002 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.