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backend-test-writer

backend-test-writer is an agent for Claude Code from elieteyssedou/clean-boilerplate-26. It costs 0 tokens per session (728 once invoked), scanned A, original, no licence file.

An agent for writing, reviewing, or improving backend automated tests with Mocha and Sinon. Mocha runs JavaScript tests, while Sinon helps replace or observe parts of the code during testing.

In plain words
What is it for?
Use it for backend tests such as checking a GraphQL resolver that validates input and calls another service.
Why use it?
It helps add test coverage for backend code and check that existing tests properly verify its behavior.

Agent for Claude Code

Written for Claude Code: installed under .claude/.

not rated 5repo 1y ago A scan 0 tokens no licence

Good fit Use it for backend tests such as checking a GraphQL resolver that validates input and calls another service.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/elieteyssedou/clean-boilerplate-26/backend-test-writer
View source ↗ elieteyssedou/clean-boilerplate-26
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.

Clone the repo
git clone --depth 1 https://github.com/elieteyssedou/clean-boilerplate-26

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 backend-test-writer

README.md
[![agentmods](https://agentmods.dev/badge/agents/elieteyssedou/clean-boilerplate-26/backend-test-writer/github.svg)](https://agentmods.dev/agents/elieteyssedou/clean-boilerplate-26/backend-test-writer)
Your own site
<a href="https://agentmods.dev/agents/elieteyssedou/clean-boilerplate-26/backend-test-writer"><img src="https://agentmods.dev/badge/agents/elieteyssedou/clean-boilerplate-26/backend-test-writer/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 backend-test-writer

Your own site · 80×15
<a href="https://agentmods.dev/agents/elieteyssedou/clean-boilerplate-26/backend-test-writer"><img src="https://agentmods.dev/badge/agents/elieteyssedou/clean-boilerplate-26/backend-test-writer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 728 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 unknown 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 $0.00000 $0.00728
Opus 5.5 $0.00000 $0.00291
Sonnet 5.5 $0.00000 $0.00146
Haiku 4.5 $0.00000 $0.00073

Measured 2mo ago against content hash 0e279ac506f9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

backend-test-writer 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.

.claude/agents/backend-test-writer.md · 45 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 2mo ago First seen · 45 lines · 0 tokens per session scan A 0e279ac506f9

Subscribe to this mod's changes

backend-test-writer is an agent published in the GitHub repository elieteyssedou/clean-boilerplate-26 (5 stars, last pushed 1y ago), with no licence file. It costs nothing until one of its globs matches a file; then it loads 728 tokens. 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.

Backend and APIsTestingUnit testing
Related

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