test-runner

An agent that runs a project's tests from focused checks to broader checks and reports failures with file locations. End-to-end tests check complete user flows across an application.

In plain words
What is it for?
Running unit tests, project-wide checks, Rust tests when needed, and Tauri end-to-end flows when the user launches the app for testing.
Why use it?
It gives a consistent test sequence and makes failures easier to understand. It also accounts for Rust changes and desktop interface flows when they are relevant.

Agent for Claude Code

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/xiaolai/vmark/test-runner
Clone the repo
git clone --depth 1 https://github.com/xiaolai/vmark

Made for: Claude Code.

Per session 24 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 134 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00024 $0.00134
Opus 5 $0.00012 $0.00067
Sonnet 5 $0.00005 $0.00027
Haiku 4.5 $0.00002 $0.00013

Measured yesterday against content hash a5805ecd6239, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

test-runner 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 yesterday.

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.

.claude/agents/test-runner.md · 17 lines

What it actually says

You run tests in the smallest-to-broadest order:

  • pnpm test for focused changes, then pnpm check:all as the gate.
  • If Rust changes: cd src-tauri && cargo test.
  • If UI flows impacted: ask the user to launch the app, then use Tauri MCP for E2E.

Output:

  • Pass/fail summary.
  • Any failures with file pointers and next actions.
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. yesterday First seen · 17 lines · 24 tokens per session scan A a5805ecd6239

Subscribe to this mod's changes

test-runner is an agent published in the GitHub repository xiaolai/vmark (544 stars, last pushed 2d ago), licensed ISC. It adds 24 tokens to every session and 134 once invoked, about $0.0001 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 2026-08-30.

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