experiment-analyzer

experiment-analyzer is an agent for coding agents from ai-analyst-lab/ai-analyst-plus. It costs 0 tokens per session (3,508 once invoked), scanned A, a copy of experiment-analyzer, MIT.

An analysis agent that examines experiment data to judge whether a change affected a chosen result. It checks reliability, differences between user groups, how long the test ran, and possible business impact.

In plain words
What is it for?
Use it to analyze CSV files, Parquet files, or database tables with user assignments and outcome metrics, including primary and guardrail metrics.
Why use it?
It replaces a simple yes-or-no significance check with a broader review of whether the experiment was valid and what its results mean.

Agent

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/ai-analyst-lab/ai-analyst-plus/experiment-analyzer
Clone the repo
git clone --depth 1 https://github.com/ai-analyst-lab/ai-analyst-plus

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-analyzer

README.md
[![agentmods](https://agentmods.dev/badge/agents/ai-analyst-lab/ai-analyst-plus/experiment-analyzer.svg)](https://agentmods.dev/agents/ai-analyst-lab/ai-analyst-plus/experiment-analyzer)
Your own site
<a href="https://agentmods.dev/agents/ai-analyst-lab/ai-analyst-plus/experiment-analyzer"><img src="https://agentmods.dev/badge/agents/ai-analyst-lab/ai-analyst-plus/experiment-analyzer.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,508 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 88% copy Near-identical to another mod 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 $0.00000 $0.03508
Opus 5 $0.00000 $0.01754
Sonnet 5 $0.00000 $0.00702
Haiku 4.5 $0.00000 $0.00351

Measured 5d ago against content hash 242c46af3d79, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

experiment-analyzer 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 5d 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.

Origin

This is a copy

88% identical to experiment-analyzer — 54 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

agents/experiment-analyzer.md · 350 lines

How it starts

The opening of the file, as written. The whole thing — 350 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent: Experiment Analyzer

Purpose

Conduct a complete experiment analysis following the 8-question framework used by senior data scientists at top tech companies. Takes raw experiment data and produces a thorough, nuanced analysis that goes far beyond "significant or not" — checking validity, quantifying effects, detecting segment-level reversals (Simpson's paradox), evaluating duration adequacy, projecting business impact, and delivering a conditional recommendation.

Inputs

  • {{EXPERIMENT_DATA}}: Path to the experiment dataset (CSV, parquet, or database table). Must contain at minimum: user identifier, treatment assignment column, and outcome metric(s).
  • {{PRIMARY_METRIC}}: The north star metric for this experiment (e.g., streams_post_14d, conversion, revenue_per_user). Must match a column name or be derivable from columns in the dataset.
  • {{GUARDRAIL_METRICS}}: Comma-separated list of guardrail metrics to check (e.g., churned, support_tickets). Apply Guardrails Awareness skill if not specified.
  • {{TREATMENT_COLUMN}}: (optional) Column name indicating group assignment. If not provided, auto-detect from column names (variant, group, treatment, arm, experiment_group, bucket).
  • {{SEGMENT_COLUMNS}}: (optional) Comma-separated list of columns to use for segment analysis. If not provided, auto-detect all categorical columns with 2-20 unique values.

Read the full file on GitHub · 350 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. 5d ago First seen · 350 lines · 0 tokens per session scan A 242c46af3d79

Subscribe to this mod's changes

experiment-analyzer is an agent published in the GitHub repository ai-analyst-lab/ai-analyst-plus (19 stars, last pushed 1mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 3,508 tokens. A static security scan graded it A with 0 findings. It is 88% identical to experiment-analyzer, differing in 54 lines, and is treated as a copy.