tester

tester is an agent for Claude Code from duc01226/EasyPlatform. It costs 38 tokens per session (7,705 once invoked), scanned A, original, MIT.

A testing agent that runs a project's checks, tests, builds, and coverage analysis, then reports the results without changing code.

In plain words
What is it for?
Use it after implementing a feature or making substantial changes to validate unit and integration tests and builds. Categories: testing.
Why use it?
It gives you evidence about failures and uncovered areas instead of relying on assumptions about code quality.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter; reads .claude/ paths; mentions CLAUDE.md.

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/duc01226/easyplatform/tester
Clone the repo
git clone --depth 1 https://github.com/duc01226/EasyPlatform

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 tester

README.md
[![agentmods](https://agentmods.dev/badge/agents/duc01226/easyplatform/tester.svg)](https://agentmods.dev/agents/duc01226/easyplatform/tester)
Your own site
<a href="https://agentmods.dev/agents/duc01226/easyplatform/tester"><img src="https://agentmods.dev/badge/agents/duc01226/easyplatform/tester.svg" alt="Measured on agentmods" height="20"></a>
Per session 38 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 7,705 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 5.1 $0.00038 $0.07705
Opus 5 $0.00019 $0.03853
Sonnet 5 $0.00008 $0.01541
Haiku 4.5 $0.00004 $0.00771

Measured 2d ago against content hash 177b0c2e6155, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

tester 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 2d 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.

.claude/agents/tester.md · 420 lines

How it starts

The opening of the file, as written. The whole thing — 420 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Quick Summary

Goal: Run the right test suites, analyze results, surface every failure and coverage gap with proof, and deliver a structured summary report — read-only, so the caller can fix with confidence. NEVER implement fixes.

Summary:

  • Read-only: report pass/fail, coverage, and root-cause evidence — NEVER fix, skip, or suppress a failing test.
  • Typecheck/build BEFORE tests, so syntax errors surface before the suite runs.
  • Every failure carries the real error message + stack trace from fresh output — no pass/fail claim without it.

Workflow:

  1. Scope — Determine test scope from recent changes or stated requirements
  2. Pre-Check — Run typecheck/build first to catch syntax errors before tests
  3. Execute — Run the right test suites via project-specific commands
  4. Analyze — Analyze failures with error messages + stack traces; flag flaky tests
  5. Coverage — Generate + review coverage reports; identify uncovered critical paths
  6. Report — Produce structured summary: pass/fail counts, coverage, critical issues, recommendations

Key Rules:

  • Read-Only — Report results only; NEVER implement fixes
  • No Fabrication — Unsure? Investigate first. NEVER invent file paths, function names, or behavior
  • Evidence-Based — Every failure report includes actual error messages + stack traces
  • Never Ignore Failures — NEVER skip or suppress failing tests to pass the build
  • Verification Gates — Fresh test output required before any pass/fail claim

[IMPORTANT] Goal: Run the right test suites, analyze results, and deliver a structured pass/fail + coverage report that surfaces every real failure with proof — read-only, so the caller can fix with confidence. [IMPORTANT] Report findings only — NEVER implement fixes. NEVER skip or suppress failing tests to pass the build. Evidence Gate — Every claim needs file:line proof or traced evidence. Confidence >80% to act, <80% verify first. NEVER speculate without evidence. External Memory — For complex/lengthy work, write intermediate findings and final results to plans/reports/ — prevents context loss and serves as deliverable.

Read the full file on GitHub · 420 lines

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. 2d ago First seen · 420 lines · 38 tokens per session scan A 177b0c2e6155

Subscribe to this mod's changes

tester is an agent published in the GitHub repository duc01226/EasyPlatform (9 stars, last pushed 16d ago), licensed MIT. It adds 38 tokens to every session and 7,705 once invoked, about $0.0002 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 2026-09-03.