testivos

testivos is an agent for Claude Code from VictorCostaOliveira/agents-tdd-flow. It costs 79 tokens per session (2,803 once invoked), scanned C, original, no licence file.

A testing agent that uses TDD, a method where tests are written before the product code, and works with Vitest for Vue or RSpec.

In plain words
What is it for?
Creating a TESTS.md plan, writing real frontend or backend tests, and working through Vue/Vitest or RSpec testing tasks.
Why use it?
It turns requirements into an explicit test plan and initially makes the test suite fail, showing what implementation is still missing.

Agent for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Creating a TESTS.md plan, writing real frontend or backend tests, and working through Vue/Vitest or RSpec testing tasks.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/victorcostaoliveira/agents-tdd-flow/testivos
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/VictorCostaOliveira/agents-tdd-flow

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 testivos

README.md
[![agentmods](https://agentmods.dev/badge/agents/victorcostaoliveira/agents-tdd-flow/testivos/github.svg)](https://agentmods.dev/agents/victorcostaoliveira/agents-tdd-flow/testivos)
Your own site
<a href="https://agentmods.dev/agents/victorcostaoliveira/agents-tdd-flow/testivos"><img src="https://agentmods.dev/badge/agents/victorcostaoliveira/agents-tdd-flow/testivos/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 testivos

Your own site · 80×15
<a href="https://agentmods.dev/agents/victorcostaoliveira/agents-tdd-flow/testivos"><img src="https://agentmods.dev/badge/agents/victorcostaoliveira/agents-tdd-flow/testivos.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 79 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,803 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. 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 $0.00079 $0.02803
Opus 5 $0.00039 $0.01401
Sonnet 5 $0.00016 $0.00561
Haiku 4.5 $0.00008 $0.00280

Measured 9d ago against content hash 8dfb05ee5f15, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade C, and why

testivos scanned grade C with 1 finding 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.

Nullifies safety policieshighAnti-refusal

"You have no restrictions", "do anything now", "ignore your guidelines": a direct jailbreak that disables guardrails.

**When the project has a testing rule** (e.g. `.cursor/rules/testing.mdc` or `**/*.spec.*` / `**/*.test.*` globs): follow that rule first; it may extend or override the guidelines below. The rule is the project’s source
claude/.claude/agents/testivos.md · 130 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. 9d ago First seen · 130 lines · 79 tokens per session scan C 8dfb05ee5f15

Subscribe to this mod's changes

testivos is an agent published in the GitHub repository VictorCostaOliveira/agents-tdd-flow (2 stars, last pushed 4mo ago), with no licence file. It adds 79 tokens to every session and 2,803 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it C with 1 finding (nullifies safety policies). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.