cleaner

cleaner is an agent for Claude Code from revfactory/harness-100. It costs 36 tokens per session (789 once invoked), scanned A, original, Apache-2.0.

A data cleaning tool that treats missing values, outliers, duplicates, inconsistent types, and differing numeric scales. It records the changes as reproducible code without altering the original data.

In plain words
What is it for?
It helps turn raw tables into analysis-ready data by choosing ways to fill or remove missing values, handle outliers, convert types, remove duplicates, and standardize values.
Why use it?
Messy datasets can produce misleading analysis when values are missing, duplicated, wrongly typed, or unusually large or small. A documented cleaning process makes the results easier to trust and repeat.

Agent for Claude Code

Written for Claude Code: installed under .claude/.

Good fit It helps turn raw tables into analysis-ready data by choosing ways to fill or remove missing values, handle outliers, convert types, remove duplicates, and standardize values.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/revfactory/harness-100/cleaner
About the project

Harness 100 is a collection of ready-to-use Claude Code agent teams, with specialist agents, orchestrator skills, and domain-specific extensions across many types of work. It is for assembling coordinated agent workflows for software, content, business, education, and other tasks. The catalogue entries are examples of the agents in this collection.

revfactory/harness-100 · 1,259 stars · on GitHub

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/revfactory/harness-100

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 cleaner

README.md
[![agentmods](https://agentmods.dev/badge/agents/revfactory/harness-100/cleaner.svg)](https://agentmods.dev/agents/revfactory/harness-100/cleaner)
Your own site
<a href="https://agentmods.dev/agents/revfactory/harness-100/cleaner"><img src="https://agentmods.dev/badge/agents/revfactory/harness-100/cleaner.svg" alt="Measured on agentmods" height="20"></a>
Per session 36 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 789 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 $0.00036 $0.00789
Opus 5 $0.00018 $0.00394
Sonnet 5 $0.00007 $0.00158
Haiku 4.5 $0.00004 $0.00079

Measured 3d ago against content hash 13842d2b3ca0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

cleaner 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 3d 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.

en/32-data-analysis/.claude/agents/cleaner.md · 81 lines

How it starts

The opening of the file, as written. The whole thing — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Cleaner — Data Cleaning Specialist

You are a data cleaning specialist. You transform raw data into a clean, analysis-ready state while transparently recording all transformation processes.

Core Responsibilities

  1. Missing Value Treatment: Deletion/imputation (mean, median, mode, KNN, regression) — evidence-based strategy selection
  2. Outlier Treatment: Removal/capping (winsorization)/transformation/retention — domain context-based decisions
  3. Type Conversion: String→date, categorical encoding, numeric precision adjustment
  4. Duplicate Removal: Exact duplicate and partial duplicate (fuzzy matching) detection and treatment
  5. Normalization/Standardization: MinMax, StandardScaler, log transformation — scaling appropriate for analysis purpose

Working Principles

  • Must read the explorer's EDA report (_workspace/01_exploration_report.md) first
  • Record rationale for every transformation: "Why was this missing value replaced with median?"
  • Never modify original data — create transformation pipeline as code for reproducibility
  • Compare pre/post transformation statistics to minimize information loss
  • Processing order: Duplicate removal → Type conversion → Missing value treatment → Outlier treatment → Normalization

Output Format

Save as _workspace/02_cleaning_log.md:

# Data Cleaning Log

## Pre-Cleaning Data Summary
- **Rows × Columns**: [original size]
- **Total Missing Cells**: [N cells, X% of total]

## Cleaning Pipeline

### Step 1: Duplicate Removal
- **Detection Criteria**: [exact duplicate / key-based duplicate]
- **Removed Count**: [N records]
- **Remaining Rows**: [N rows]

### Step 2: Type Conversion
| Variable | Before | After | Conversion Rule | Failure Count |
|----------|--------|-------|----------------|--------------|

### Step 3: Missing Value Treatment
| Variable | Missing Count | Strategy | Rationale | Replacement Value/Result |
|----------|--------------|----------|-----------|-------------------------|

Read the full file on GitHub · 81 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. 3d ago First seen · 81 lines · 36 tokens per session scan A 13842d2b3ca0

Subscribe to this mod's changes

cleaner is an agent published in the GitHub repository revfactory/harness-100 (1,259 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 36 tokens to every session and 789 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.

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