team-development-skills: Agent for Claude Code

.claude/agents/tester.md

tester is an agent for Claude Code from DangQuangSE/team-development-skills. It costs 83 tokens per session (1,079 once invoked), scanned A, original, no licence file.

A testing sub-agent that writes and runs tests for a defined scope, such as unit, integration, or end-to-end tests. It can also prepare or verify TDD work and reports whether the result passed, failed, or is ready for the next test-driven step.

In plain words
What is it for?
Use it to create and execute tests, verify existing behavior, or prepare and check tests during TDD.
Why use it?
It separates test work from production-code changes. This makes test results explicit and leaves the decision to start a fix to the surrounding testing workflow.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

This is DangQuangSE/team-development-skills's own configuration. It tells Claude Code how to work on team-development-skills itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything team-development-skills configures →

Reuse

Borrowing it

Nothing to install: this file belongs to DangQuangSE/team-development-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/DangQuangSE/team-development-skills/main/.claude/agents/tester.md
Clone the repo
git clone --depth 1 https://github.com/DangQuangSE/team-development-skills

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 tester

README.md
[![agentmods](https://agentmods.dev/badge/agents/dangquangse/team-development-skills/tester.svg)](https://agentmods.dev/agents/dangquangse/team-development-skills/tester)
Your own site
<a href="https://agentmods.dev/agents/dangquangse/team-development-skills/tester"><img src="https://agentmods.dev/badge/agents/dangquangse/team-development-skills/tester.svg" alt="Measured on agentmods" height="20"></a>
Per session 83 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,079 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 $0.00083 $0.01079
Opus 5 $0.00042 $0.00540
Sonnet 5 $0.00017 $0.00216
Haiku 4.5 $0.00008 $0.00108

Measured 7d ago against content hash 1dbeef1a703f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

tester 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 7d 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/tester.md · 102 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. 7d ago First seen · 102 lines · 83 tokens per session scan A 1dbeef1a703f

Subscribe to this mod's changes

tester is an agent published in the GitHub repository DangQuangSE/team-development-skills (19 stars, last pushed 7d ago), with no licence file. It adds 83 tokens to every session and 1,079 once invoked, about $0.0004 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.