ralph-tester

ralph-tester is an agent for coding agents from javi22020/ralph. It costs 78 tokens per session (907 once invoked), scanned A, original, no licence file.

A verification agent for an autonomous coding loop. It runs checks such as tests, builds, linting, and type checking, then reports whether they passed.

In plain words
What is it for?
Checking whether a coding change builds cleanly and passes the project's tests and other configured quality checks.
Why use it?
It provides an objective check of each iteration without filling the main agent's context with command output.

Agent

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 agents/javi22020/ralph/ralph-tester
Clone the repo
git clone --depth 1 https://github.com/javi22020/ralph

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 ralph-tester

README.md
[![agentmods](https://agentmods.dev/badge/agents/javi22020/ralph/ralph-tester.svg)](https://agentmods.dev/agents/javi22020/ralph/ralph-tester)
Your own site
<a href="https://agentmods.dev/agents/javi22020/ralph/ralph-tester"><img src="https://agentmods.dev/badge/agents/javi22020/ralph/ralph-tester.svg" alt="Measured on agentmods" height="20"></a>
Per session 78 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 907 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00078 $0.00907
Opus 5 $0.00039 $0.00453
Sonnet 5 $0.00016 $0.00181
Haiku 4.5 $0.00008 $0.00091

Measured 4d ago against content hash ccb9df632e12, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ralph-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 4d 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.

agents/ralph-tester.md · 74 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. 4d ago First seen · 74 lines · 78 tokens per session scan A ccb9df632e12

Subscribe to this mod's changes

ralph-tester is an agent published in the GitHub repository javi22020/ralph (1 stars, last pushed 4mo ago), with no licence file. It adds 78 tokens to every session and 907 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 2026-08-31.

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