jq

jq is a skill for Claude Code, Codex from charmbracelet/crush. It costs 49 tokens per session (878 once invoked), scanned A, original, no licence file.

A skill for jq, a command-line tool that reads and transforms JSON, which is a common format for structured data.

In plain words
What is it for?
Writing or debugging jq commands that query, filter, reshape, extract, create, or construct JSON.
Why use it?
It helps extract or reshape data from API responses, configuration files, logs, and other JSON without manually editing each value.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

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/charmbracelet/crush/jq
Any agent
npx skills add charmbracelet/crush --skill jq
Clone the repo
git clone --depth 1 https://github.com/charmbracelet/crush

Made for: Claude Code, Codex.

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 jq

README.md
[![agentmods](https://agentmods.dev/badge/skills/charmbracelet/crush/jq.svg)](https://agentmods.dev/skills/charmbracelet/crush/jq)
Your own site
<a href="https://agentmods.dev/skills/charmbracelet/crush/jq"><img src="https://agentmods.dev/badge/skills/charmbracelet/crush/jq.svg" alt="Measured on agentmods" height="20"></a>
Per session 49 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 878 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00049 $0.00878
Opus 5 $0.00024 $0.00439
Sonnet 5 $0.00010 $0.00176
Haiku 4.5 $0.00005 $0.00088

Measured 6d ago against content hash 467f7c6b5ef2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

jq scanned grade A with 1 finding 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- Pipe jq output to other commands: `jq -r '.url' data.json | xargs curl`
internal/skills/builtin/jq/SKILL.md · 98 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 · 98 lines · 49 tokens per session scan A 467f7c6b5ef2

Subscribe to this mod's changes

jq is a skill published in the GitHub repository charmbracelet/crush (27,927 stars, last pushed today), with no licence file. It adds 49 tokens to every session and 878 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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