data-analysis

A workflow for examining and analyzing data from files, databases, APIs, or spreadsheets. It checks the data before calculating statistics, finding patterns, or creating charts.

In plain words
What is it for?
Use it to inspect datasets, calculate summaries, compare groups, measure relationships, identify data-quality problems, and make requested visualizations.
Why use it?
It reduces the risk of drawing conclusions from missing, duplicated, incorrectly typed, or unusual data.

Skill for Claude CodeCodex

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 skills/spytensor/openmozi/data-analysis
Any agent
npx skills add spytensor/openmozi --skill data-analysis
Clone the repo
git clone --depth 1 https://github.com/spytensor/openmozi

Made for: Claude Code, Codex.

Per session 48 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 469 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 $0.00048 $0.00469
Opus 5 $0.00024 $0.00234
Sonnet 5 $0.00010 $0.00094
Haiku 4.5 $0.00005 $0.00047

Measured yesterday against content hash 529cd61b5895, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

data-analysis 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 yesterday.

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.

skills/data-analysis/SKILL.md · 46 lines

What it actually says

Data Analysis Workflow

How to Execute

  1. Ingest: Read the data source (CSV, JSON, database, API). Confirm format and size.
  2. Validate: Check for missing values, outliers, type mismatches. Report data quality issues.
  3. Explore: Compute basic statistics (count, mean, median, distribution). Identify patterns.
  4. Analyze: Apply the requested analysis (correlation, aggregation, filtering, comparison).
  5. Report: Present findings with clear summaries. Generate charts/visualizations if requested.

Rules

  • Always inspect the data before analyzing — never assume structure.
  • Report data quality issues (nulls, duplicates, outliers) before drawing conclusions.
  • Use shell_exec with Python (pandas, matplotlib) for large datasets or complex analysis.
  • Show your methodology: what you computed, which columns, what filters.
  • Present numbers with appropriate precision (don't show 15 decimal places).

Pitfalls

  • Analyzing without first inspecting the data shape and quality
  • Drawing conclusions from data with unaddressed quality issues
  • Showing raw numbers without context or interpretation
  • Not specifying units or time periods for metrics
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. yesterday First seen · 46 lines · 48 tokens per session scan A 529cd61b5895

Subscribe to this mod's changes

data-analysis is a skill published in the GitHub repository spytensor/openmozi (192 stars, last pushed 25d ago), licensed MIT. It adds 48 tokens to every session and 469 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.

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