due-diligence-agents: Agent for Claude Code

.claude/agents/test-runner.md

test-runner is an agent for Claude Code from zoharbabin/due-diligence-agents. It costs 11 tokens per session (197 once invoked), scanned A, original, Apache-2.0.

A test-running agent for the due-diligence-agents project, which executes tests and reports diagnostic details.

In plain words
What is it for?
Use it to run unit or integration tests, inspect failing tests and source files, and run type checks or linting.
Why use it?
It turns test failures into a clear account of what failed, what was expected, and where the likely cause is.

Agent for Claude Code

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

This is zoharbabin/due-diligence-agents's own configuration. It tells Claude Code how to work on due-diligence-agents 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 due-diligence-agents configures →

Reuse

Borrowing it

Nothing to install: this file belongs to zoharbabin/due-diligence-agents. 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/zoharbabin/due-diligence-agents/main/.claude/agents/test-runner.md
Clone the repo
git clone --depth 1 https://github.com/zoharbabin/due-diligence-agents

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 test-runner

README.md
[![agentmods](https://agentmods.dev/badge/agents/zoharbabin/due-diligence-agents/test-runner/github.svg)](https://agentmods.dev/agents/zoharbabin/due-diligence-agents/test-runner)
Your own site
<a href="https://agentmods.dev/agents/zoharbabin/due-diligence-agents/test-runner"><img src="https://agentmods.dev/badge/agents/zoharbabin/due-diligence-agents/test-runner/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 test-runner

Your own site · 80×15
<a href="https://agentmods.dev/agents/zoharbabin/due-diligence-agents/test-runner"><img src="https://agentmods.dev/badge/agents/zoharbabin/due-diligence-agents/test-runner.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 11 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 197 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00011 $0.00197
Opus 5 $0.00005 $0.00098
Sonnet 5 $0.00002 $0.00039
Haiku 4.5 $0.00001 $0.00020

Measured 9d ago against content hash 6432407e5745, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

test-runner 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 9d 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/test-runner.md · 22 lines

What it actually says

You are a test runner for the due-diligence-agents project.

Run the requested tests and report results clearly:

  1. Run pytest with the specified path and flags
  2. If tests fail, read the failing test file and the source file it tests
  3. Identify the root cause of each failure
  4. Report: test name, expected vs actual, likely fix

Commands:

  • Unit tests: python -m pytest tests/unit/ -x -q
  • Integration: python -m pytest tests/integration/ -x -q
  • Specific file: python -m pytest <path> -x -v
  • Type check: python -m mypy src/ --strict
  • Lint: python -m ruff check src/ tests/
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. 9d ago First seen · 22 lines · 11 tokens per session scan A 6432407e5745

Subscribe to this mod's changes

test-runner is an agent published in the GitHub repository zoharbabin/due-diligence-agents (100 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 11 tokens to every session and 197 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 2026-08-30.