experiment-preflight

experiment-preflight is a command for Claude Code from yeaight7/agent-powerups. It costs 21 tokens per session (238 once invoked), scanned A, original, Apache-2.0.

A pre-run check for a machine-learning training script. It verifies that random seeds, settings, data versions, metrics, and the saved model are recorded before a long run starts.

In plain words
What is it for?
Use it to get a Go/No-Go decision and identify the exact code lines that need fixing before training.
Why use it?
It helps prevent wasted computing time and results that cannot be repeated or traced back to the data and settings used.

Command for Claude Code

Written for Claude Code: argument-hint in frontmatter.

Part of the machine-learning-ops plugin — 7 skills, 4 commands, 3 agents shipped together

Good fit Use it to get a Go/No-Go decision and identify the exact code lines that need fixing before training.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/yeaight7/agent-powerups/experiment-preflight
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/yeaight7/agent-powerups

Made for: Claude Code.

Or install machine-learning-ops, the plugin that ships this one along with the rest of its 7 skills, 4 commands, 3 agents.

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-preflight

README.md
[![agentmods](https://agentmods.dev/badge/commands/yeaight7/agent-powerups/experiment-preflight/github.svg)](https://agentmods.dev/commands/yeaight7/agent-powerups/experiment-preflight)
Your own site
<a href="https://agentmods.dev/commands/yeaight7/agent-powerups/experiment-preflight"><img src="https://agentmods.dev/badge/commands/yeaight7/agent-powerups/experiment-preflight/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-preflight

Your own site · 80×15
<a href="https://agentmods.dev/commands/yeaight7/agent-powerups/experiment-preflight"><img src="https://agentmods.dev/badge/commands/yeaight7/agent-powerups/experiment-preflight.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 21 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 238 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 $0.00021 $0.00238
Opus 5.5 $0.00008 $0.00095
Sonnet 5.5 $0.00004 $0.00048
Haiku 4.5 $0.00002 $0.00024

Measured 1mo ago against content hash 33e555eba19e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

experiment-preflight 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.

plugins/machine-learning-ops/commands/experiment-preflight.md · 18 lines

What it actually says

Experiment Preflight Command

CRITICAL BEHAVIORAL RULES

  1. Prevent Wasted Compute: Training runs take hours or days. The preflight check prevents starting a run that will immediately fail or whose results will be untrustworthy.

Execution Steps

  1. Read the target training script.
  2. Seed Check: Verify random.seed, np.random.seed, and torch.manual_seed (or equivalent) are set at the very beginning.
  3. Tracking Check: Verify that hyperparameters, metrics, and the final model artifact are logged using a tracking system (MLflow, Weights & Biases, or simple JSON).
  4. Data Versioning: Verify that the dataset path or version is explicitly recorded in the configuration.
  5. Output: Provide a strict "Go/No-Go" decision. If No-Go, output the exact lines of code that need to be fixed to ensure the run is reproducible and trackable.
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 · 18 lines · 21 tokens per session scan A 33e555eba19e

Subscribe to this mod's changes

experiment-preflight is a command published in the GitHub repository yeaight7/agent-powerups (6 stars, last pushed 19d ago), licensed Apache-2.0. It adds 21 tokens to every session and 238 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 2026-09-14.