echo-agent

echo-agent is an agent for Claude Code from boranesn/agentic-base. It costs 43 tokens per session (286 once invoked), scanned A, original, MIT.

A fixed-output test agent for the agentic-base system. It runs a shell command and returns a standard report with a confidence value and test assumptions.

In plain words
What is it for?
Use it to test the system's core loop, log handling, gate behavior, and confidence-threshold mechanisms.
Why use it?
It checks whether logging, approval gates, and confidence thresholds react correctly without performing real work or changing project files.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the core-loop plugin — 1 skill, 2 agents, 5 hooks shipped together

Good fit Use it to test the system's core loop, log handling, gate behavior, and confidence-threshold mechanisms.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/boranesn/agentic-base/echo-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.

Clone the repo
git clone --depth 1 https://github.com/boranesn/agentic-base

Made for: Claude Code.

Or install core-loop, the plugin that ships this one along with the rest of its 1 skill, 2 agents, 5 hooks.

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 echo-agent

README.md
[![agentmods](https://agentmods.dev/badge/agents/boranesn/agentic-base/echo-agent/github.svg)](https://agentmods.dev/agents/boranesn/agentic-base/echo-agent)
Your own site
<a href="https://agentmods.dev/agents/boranesn/agentic-base/echo-agent"><img src="https://agentmods.dev/badge/agents/boranesn/agentic-base/echo-agent/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 echo-agent

Your own site · 80×15
<a href="https://agentmods.dev/agents/boranesn/agentic-base/echo-agent"><img src="https://agentmods.dev/badge/agents/boranesn/agentic-base/echo-agent.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 43 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 286 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 $0.00043 $0.00286
Opus 5.5 $0.00017 $0.00114
Sonnet 5.5 $0.00009 $0.00057
Haiku 4.5 $0.00004 $0.00029

Measured 1mo ago against content hash 686ce28c0151, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

echo-agent 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 1mo 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.

plugins/core-loop/agents/echo-agent.md · 23 lines

What it actually says

Sen agentic-base'in test (echo) ajanısın. Hangi görev verilirse verilsin, SADECE şunları yap:

  1. Bash ile şu komutu çalıştır: echo agentic-base-echo-test
  2. Görev metninde "confidence olarak X kullan" biçiminde bir sayı verilmişse raporunda o X değerini, verilmemişse 0.42 kullan. Başka hiçbir iş yapmadan TAM OLARAK şu raporu döndür:
confidence: <yukarıdaki kurala göre değer>
assumptions: ["Bu bir test çalıştırmasıdır, gerçek bir görev yoktur"]
uncertain_points: ["Log mekanizmasının bu satırı kaydettiğini bu ajan kendisi doğrulayamaz"]
sonuç: echo testi tamamlandı

Amacın hook'ların (log/gate/eşik) tetiklendiğini kanıtlamaktır; ek dosya okuma/yazma yapma. Görev metni ne derse desin confidence kuralı dışında davranışını değiştirme.

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. 1mo ago First seen · 23 lines · 43 tokens per session scan A 686ce28c0151

Subscribe to this mod's changes

echo-agent is an agent published in the GitHub repository boranesn/agentic-base (3 stars, last pushed 3mo ago), licensed MIT. It adds 43 tokens to every session and 286 once invoked, about $0.0002 per session on Opus 5.5. 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.