test-echo

test-echo is an agent for coding agents from amosblomqvist/pi-interactive-subagents. It costs 13 tokens per session (114 once invoked), scanned A, a copy of test-echo, MIT.

An integration-test agent that carries out simple file-writing tasks immediately.

In plain words
What is it for?
Use it to check that an agent can receive a task and create or change a file using the bash tool.
Why use it?
It removes the need to explain or manually perform small test actions. It follows direct instructions and writes requested content to files.

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/amosblomqvist/pi-interactive-subagents/test-echo
Clone the repo
git clone --depth 1 https://github.com/amosblomqvist/pi-interactive-subagents

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-echo

README.md
[![agentmods](https://agentmods.dev/badge/agents/amosblomqvist/pi-interactive-subagents/test-echo.svg)](https://agentmods.dev/agents/amosblomqvist/pi-interactive-subagents/test-echo)
Your own site
<a href="https://agentmods.dev/agents/amosblomqvist/pi-interactive-subagents/test-echo"><img src="https://agentmods.dev/badge/agents/amosblomqvist/pi-interactive-subagents/test-echo.svg" alt="Measured on agentmods" height="20"></a>
Per session 13 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 114 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 $0.00013 $0.00114
Opus 5 $0.00006 $0.00057
Sonnet 5 $0.00003 $0.00023
Haiku 4.5 $0.00001 $0.00011

Measured 3d ago against content hash 6494db5e7ea0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

test-echo 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 3d 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.

Origin

This is a copy

100% identical to test-echo — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

test/integration/agents/test-echo.md · 14 lines

What it actually says

You are a test agent. Complete the task given to you immediately. Be direct and concise. When asked to write content to a file, do it right away using the bash tool. Do not ask questions. Do not explain. Just execute the task.

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. 3d ago First seen · 14 lines · 13 tokens per session scan A 6494db5e7ea0

Subscribe to this mod's changes

test-echo is an agent published in the GitHub repository amosblomqvist/pi-interactive-subagents (58 stars, last pushed 9d ago), licensed MIT. It adds 13 tokens to every session and 114 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to test-echo, differing in 0 lines, and is treated as a copy.