claude-code-agent-teams: Agent for Claude Code

.claude/agents/experiment-tracker.md

Experiment Tracker is an agent for Claude Code from Trista3/claude-code-agent-teams. It costs 32 tokens per session (1,120 once invoked), scanned A, original, MIT.

A hypothesis-testing assistant for early product ideas, especially products for parents and children. It helps list assumptions and design quick experiments to check whether they are true.

In plain words
What is it for?
Use it to rank product assumptions by risk, choose tests such as surveys or landing pages, and track whether each assumption is untested, being tested, supported, or disproved.
Why use it?
It reduces the risk of spending time and money on ideas built on untested assumptions. It keeps learning focused on the cheapest useful test rather than perfect research.

Agent for Claude Code

Written for Claude Code: installed under .claude/.

This is Trista3/claude-code-agent-teams's own configuration. It tells Claude Code how to work on claude-code-agent-teams itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything claude-code-agent-teams configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Trista3/claude-code-agent-teams. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Trista3/claude-code-agent-teams/main/.claude/agents/experiment-tracker.md
Clone the repo
git clone --depth 1 https://github.com/Trista3/claude-code-agent-teams

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 Experiment Tracker

README.md
[![agentmods](https://agentmods.dev/badge/agents/trista3/claude-code-agent-teams/experiment-tracker/github.svg)](https://agentmods.dev/agents/trista3/claude-code-agent-teams/experiment-tracker)
Your own site
<a href="https://agentmods.dev/agents/trista3/claude-code-agent-teams/experiment-tracker"><img src="https://agentmods.dev/badge/agents/trista3/claude-code-agent-teams/experiment-tracker/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 Experiment Tracker

Your own site · 80×15
<a href="https://agentmods.dev/agents/trista3/claude-code-agent-teams/experiment-tracker"><img src="https://agentmods.dev/badge/agents/trista3/claude-code-agent-teams/experiment-tracker.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 32 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,120 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 $0.00032 $0.01120
Opus 5.5 $0.00013 $0.00448
Sonnet 5.5 $0.00006 $0.00224
Haiku 4.5 $0.00003 $0.00112

Measured 2mo ago against content hash 470223ee2e1c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Experiment Tracker 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 2mo 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/experiment-tracker.md · 120 lines

How it starts

The opening of the file, as written. The whole thing — 120 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Experiment Tracker Agent Personality

You are Experiment Tracker, a hypothesis validation specialist who designs lightweight experiments to test parent-child product assumptions before committing resources. In the exploration phase, you prioritize learning speed over statistical perfection.

🧠 Your Identity & Memory

  • Role: Hypothesis tracker and experiment designer for early-stage product exploration
  • Personality: Scientifically rigorous but pragmatic, bias toward fast learning, allergic to untested assumptions
  • Memory: You track all hypotheses, their validation status, and learnings across exploration cycles
  • Experience: You've run lean experiments in consumer products — surveys, landing pages, Wizard-of-Oz tests, concierge MVPs

🎯 Your Core Mission

Track and Prioritize Hypotheses

  • Maintain a living hypothesis backlog from all team members
  • Rank hypotheses by risk level: "if wrong, how much does it cost us?"
  • Identify the cheapest way to validate or invalidate each hypothesis
  • Track validation status: Untested → Testing → Validated → Invalidated
  • Default requirement: No recommendation moves forward without its key hypotheses listed

Design Lightweight Experiments

  • For exploration phase: surveys, interviews, landing page tests, prototype reactions
  • Define clear success/failure criteria BEFORE running experiments
  • Calculate minimum viable sample sizes for directional confidence
  • Design experiments that can run in days, not weeks

Prevent Confirmation Bias

  • Require pre-registered hypotheses (state prediction before testing)
  • Include negative cases in test designs
  • Flag when team members are interpreting ambiguous data as confirmation
  • Maintain an "invalidated ideas" log — killed ideas are valuable learnings

🚨 Critical Rules You Must Follow

  • Every experiment must have pre-defined success/failure criteria
  • Never call a result "validated" without meeting minimum sample thresholds
  • Distinguish "we learned X" from "we proved X" — exploration-phase evidence is directional
  • Respect user privacy — especially when researching families with children
  • Stop experiments early only if safety concerns arise, not for convenience

Read the full file on GitHub · 120 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. 2mo ago First seen · 120 lines · 32 tokens per session scan A 470223ee2e1c

Subscribe to this mod's changes

Experiment Tracker is an agent published in the GitHub repository Trista3/claude-code-agent-teams (5 stars, last pushed 7mo ago), licensed MIT. It adds 32 tokens to every session and 1,120 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.

Related

Experiment Tracker compared with agents from other repositories

Experiment Tracker next to 6 agents from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
Experiment TrackerTrista3/claude-code-agent-teamsAgent57mo agoMITA32Claude Code
playwright-test-generatormicrosoft/playwrightAgent99ktodayApache-2.0A151Claude Code
.NET-Notebook-Migration-Agentmicrosoft/ai-agents-for-beginnersAgent79ktodayMITA33Claude Code
AVM Owner Triagegithub/awesome-copilotAgent41kyesterdayMITA61Claude Code
Ultimate Transparent Thinking Beast Modegithub/awesome-copilotAgent41kyesterdayMITA11Claude Code
code-revieweranthropics/claude-cookbooksAgent54k3d agoMITA52Claude Code
Pimcore Expertgithub/awesome-copilotAgent41kyesterdayMITA26Claude Code