A test-generation workflow that reads source files, identifies the project's testing framework, and asks Codex to write unit tests.

Use it to generate tests covering normal cases, edge cases, and error cases, then place them in the project's test structure.

It removes the manual work of figuring out the test setup and creating tests that match the existing project.

Codex Test — Skill for Claude Code by dante01yoon/codex-mcp-bridge

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 dante01yoon/codex-mcp-bridge --skill codex-test

Clone the repo

git clone --depth 1 https://github.com/dante01yoon/codex-mcp-bridge

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/dante01yoon/codex-mcp-bridge/codex-test/github.svg)](https://agentmods.dev/skills/dante01yoon/codex-mcp-bridge/codex-test)

Your own site

<a href="https://agentmods.dev/skills/dante01yoon/codex-mcp-bridge/codex-test"><img src="https://agentmods.dev/badge/skills/dante01yoon/codex-mcp-bridge/codex-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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/dante01yoon/codex-mcp-bridge/codex-test"><img src="https://agentmods.dev/badge/skills/dante01yoon/codex-mcp-bridge/codex-test.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 281 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 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.

Model	Per session	Once invoked
Fable 5.1	$0.00026	$0.00281
Opus 5.5	$0.00010	$0.00112
Sonnet 5.5	$0.00005	$0.00056
Haiku 4.5	$0.00003	$0.00028

Measured 2mo ago against content hash b11bea760357, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Codex 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 2mo 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.

examples/claude-skills/codex-test/SKILL.md · 30 lines

What it actually says

Generate tests for the specified code using Codex as a sub-agent.

Steps

Read the target file(s) specified in the arguments.
Detect the project's testing framework by checking existing test files, config, and dependencies.
Call mcp__codex-bridge__consult_codex_with_stdin with:
- stdin_content: the full content of the target file(s)
- prompt: "Generate comprehensive unit tests for this code. Include edge cases, error cases, and happy path. Use [FRAMEWORK] as the testing framework. Return only the test code."
- format: "code"
- timeout: 180
- sandbox: "read-only"
Replace [FRAMEWORK] with the detected framework (pytest, vitest, jest, etc.).
Write the tests to the appropriate test file location following the project's test structure.

$ARGUMENTS

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.

2mo ago First seen · 30 lines · 26 tokens per session scan A b11bea760357

Subscribe to this mod's changes

Codex Test is a skill published in the GitHub repository dante01yoon/codex-mcp-bridge (1 stars, last pushed 8mo ago), licensed MIT. It adds 26 tokens to every session and 281 once invoked, about $0.0001 per session on Opus 5.5. 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.

Testing Unit testing

Codex Test next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
Codex Testdante01yoon/codex-mcp-bridge	Skill	1	8mo ago	MIT	A	26	Claude Code
test-masterJeffallan/claude-skills	Skill	12k	12d ago	MIT	A	104	Claude Code
migrate-xunit-to-xunit-v3dotnet/skills	Skill	5.9k	today	MIT	A	149	Claude Code
go-testingGentleman-Programming/gentle-ai	Skill	8.8k	yesterday	MIT	A	26	Claude Code, Codex
principle-test-behavior-not-implementationmichael-denyer/pstack-claude	Skill	4.2k	today	MIT	A	50	Claude Code
dart-testdartsim/dart	Skill	1.2k	yesterday	BSD-2-Clause	A	18	Claude Code, Codex
test-generatorrshankras/claude-code-apple-skills	Skill	881	2d ago	MIT	A	33	Claude Code