af-test

af-test is a command for Claude Code, OpenCode from chankov/agent-fleet. It costs 13 tokens per session (155 once invoked), scanned A, original, MIT.

A command for test-driven development (TDD), a method where tests are written before the code they check.

In plain words
What is it for?
Use it for new features and bug fixes, including browser-related issues that need browser testing and the relevant full test suite.
Why use it?
It catches regressions by proving a new feature or bug fix fails first, then confirming the implementation makes the test pass.

Command for Claude CodeOpenCode

Written for OpenCode and Claude Code: installed under .opencode/, but also a Claude Code command (commands/*.md).

Good fit Use it for new features and bug fixes, including browser-related issues that need browser testing and the relevant full test suite.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/chankov/agent-fleet/af-test
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/chankov/agent-fleet

Made for: Claude Code, OpenCode.

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 af-test

README.md
[![agentmods](https://agentmods.dev/badge/commands/chankov/agent-fleet/af-test/github.svg)](https://agentmods.dev/commands/chankov/agent-fleet/af-test)
Your own site
<a href="https://agentmods.dev/commands/chankov/agent-fleet/af-test"><img src="https://agentmods.dev/badge/commands/chankov/agent-fleet/af-test/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 af-test

Your own site · 80×15
<a href="https://agentmods.dev/commands/chankov/agent-fleet/af-test"><img src="https://agentmods.dev/badge/commands/chankov/agent-fleet/af-test.svg" alt="Reviewed on agentmods" width="80" 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 155 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 $0.00013 $0.00155
Opus 5.5 $0.00005 $0.00062
Sonnet 5.5 $0.00003 $0.00031
Haiku 4.5 $0.00001 $0.00015

Measured 1mo ago against content hash 06a71d961a35, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

af-test 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.

.versions/0.0.1/.opencode/commands/af-test.md · 22 lines

What it actually says

Invoke the test-driven-development skill via the skill tool.

For new features:

  1. Write tests that describe the expected behavior and confirm they fail.
  2. Implement the code to make them pass.
  3. Refactor while keeping tests green.

For bug fixes, use the Prove-It pattern:

  1. Write a test that reproduces the bug and must fail.
  2. Confirm the test fails.
  3. Implement the fix.
  4. Confirm the test passes.
  5. Run the relevant full test suite for regressions.

For browser-related issues, also invoke browser-testing-with-devtools via the skill tool to verify with Chrome DevTools MCP.

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 · 22 lines · 13 tokens per session scan A 06a71d961a35

Subscribe to this mod's changes

af-test is a command published in the GitHub repository chankov/agent-fleet (19 stars, last pushed yesterday), licensed MIT. It adds 13 tokens to every session and 155 once invoked, about $0.0001 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.