wren

wren is a skill for Claude Code from Canner/WrenAI. It costs 315 tokens per session (812 once invoked), scanned A, original, no licence file.

A Wren CLI skill for answering data questions across more than 22 databases. Wren is a semantic SQL layer, meaning it helps an AI agent use consistent business meanings when querying different data systems.

In plain words
What is it for?
It is for questions such as how many, top results, revenue, metric comparisons, trends, and breakdowns across supported databases.
Why use it?
It gives agents a stated workflow for questions that require counts, comparisons, trends, rankings, or other database analysis.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the wren plugin — 1 skill shipped together

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/canner/wrenai/wren
Any agent
npx skills add Canner/WrenAI --skill wren
Clone the repo
git clone --depth 1 https://github.com/Canner/WrenAI

Made for: Claude Code.

Or install wren, the plugin that ships this one along with the rest of its 1 skill.

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 wren

README.md
[![agentmods](https://agentmods.dev/badge/skills/canner/wrenai/wren.svg)](https://agentmods.dev/skills/canner/wrenai/wren)
Your own site
<a href="https://agentmods.dev/skills/canner/wrenai/wren"><img src="https://agentmods.dev/badge/skills/canner/wrenai/wren.svg" alt="Measured on agentmods" height="20"></a>
Per session 315 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 812 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00315 $0.00812
Opus 5 $0.00158 $0.00406
Sonnet 5 $0.00063 $0.00162
Haiku 4.5 $0.00032 $0.00081

Measured 6d ago against content hash 7a675637d101, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

wren 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 6d 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.

skills/wren/SKILL.md · 58 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 6d ago First seen · 58 lines · 315 tokens per session scan A 7a675637d101

Subscribe to this mod's changes

wren is a skill published in the GitHub repository Canner/WrenAI (17,505 stars, last pushed yesterday), with no licence file. It adds 315 tokens to every session and 812 once invoked, about $0.0016 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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