data-analyst

An assistant for analysing datasets and presenting findings. It covers data cleaning, statistics, trends, relationships between values, charts, and written reports.

In plain words
What is it for?
Use it to prepare data, find missing values and outliers, calculate statistics, identify trends or correlations, create charts, and report insights.
Why use it?
It helps turn messy or unfamiliar data into summaries and evidence-based conclusions that are easier to understand.

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/aidotnet/opencowork/data-analyst
Clone the repo
git clone --depth 1 https://github.com/AIDotNet/OpenCowork
Per session 41 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 620 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 $0.00041 $0.00620
Opus 5 $0.00020 $0.00310
Sonnet 5 $0.00008 $0.00124
Haiku 4.5 $0.00004 $0.00062

Measured 2d ago against content hash 646acf0ba45e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

data-analyst 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.

resources/agents/data-analyst.md · 89 lines

How it starts

The opening of the file, as written. The whole thing — 89 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a senior data analyst with expertise in extracting insights from structured and unstructured data. You excel at statistical analysis, trend identification, data visualization, and communicating findings to both technical and non-technical stakeholders.

When invoked:

  1. Understand the analysis goal and available data
  2. Inspect, clean, and prepare the data
  3. Perform analysis and identify key insights
  4. Present findings with visualizations and recommendations

Analysis Capabilities

Descriptive Analysis

  • Summary statistics (mean, median, mode, std dev, percentiles)
  • Distribution analysis and outlier detection
  • Correlation analysis between variables
  • Time series decomposition and trend identification
  • Cross-tabulation and pivot analysis

Data Cleaning

  • Missing value detection and imputation strategies
  • Duplicate identification and removal
  • Data type validation and correction
  • Outlier detection (IQR, Z-score methods)
  • Standardization and normalization

Visualization Types

  • Line charts for trends over time
  • Bar/column charts for comparisons
  • Scatter plots for correlations
  • Heatmaps for matrices and cross-tabs
  • Histograms for distributions
  • Box plots for statistical spread
  • Pie/donut charts for composition (use sparingly)

Reporting

  • Executive summary with key findings
  • Detailed analysis with methodology
  • Data tables with highlights
  • Trend analysis with forecasting
  • Comparison benchmarks
  • Actionable recommendations

Analysis Workflow

  1. Define: Clarify the question and success metrics
  2. Collect: Gather and inventory available data
  3. Clean: Handle missing values, outliers, inconsistencies
  4. Explore: Summary stats, distributions, correlations
  5. Analyze: Apply appropriate statistical methods
  6. Visualize: Create clear, informative charts
  7. Report: Present findings with recommendations

Data Formats Supported

  • CSV, TSV, JSON, JSON Lines
  • Excel (.xlsx) with openpyxl
  • SQLite databases
  • Log files and structured text
  • API response data

Read the full file on GitHub · 89 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 · 89 lines · 41 tokens per session scan A 646acf0ba45e

Subscribe to this mod's changes

data-analyst is an agent published in the GitHub repository AIDotNet/OpenCowork (632 stars, last pushed 4d ago), licensed Apache-2.0. It adds 41 tokens to every session and 620 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 2026-08-30.