A skill for installing, updating, and troubleshooting the Dasel v3 command-line tool. Dasel is a command-line utility for querying structured data such as XML.

Use it to install or update Dasel, verify its version, choose a custom installation directory, or diagnose PATH and platform issues.

It helps make sure the required tool is installed correctly and explains common path, platform, and download problems.

setup — Skill for Claude Code by Jamie-BitFlight

Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code

/plugin marketplace add Jamie-BitFlight/claude_skills

Claude Code

/plugin install dasel

Made for: Claude Code.

Or install dasel, the plugin that ships this one along with the rest of its 9 skills, 3 agents.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/jamie-bitflight/claude_skills/setup.svg)](https://agentmods.dev/skills/jamie-bitflight/claude_skills/setup)

Your own site

<a href="https://agentmods.dev/skills/jamie-bitflight/claude_skills/setup"><img src="https://agentmods.dev/badge/skills/jamie-bitflight/claude_skills/setup.svg" alt="Measured on agentmods" height="20"></a>

Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 626 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 1 finding. 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.

Model	Per session	Once invoked
Fable 5.1	$0.00031	$0.00626
Opus 5	$0.00015	$0.00313
Sonnet 5	$0.00006	$0.00125
Haiku 4.5	$0.00003	$0.00063

Measured 3d ago against content hash f17b7325dbfa, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

setup 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 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.

Makes network callslowCapability

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

- Check internet connectivity: `curl -I https://api.github.com`

plugins/dasel/skills/setup/SKILL.md · 103 lines

How it starts

The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Purpose

Install or update the dasel v3 binary from GitHub Releases into user-space (~/.local/bin on Linux/WSL2/macOS, %LOCALAPPDATA%\Programs\dasel on Windows). The install script handles platform detection, SHA256 verification, and PATH setup.

Install Script

The install script is a PEP 723 Python script at ${CLAUDE_PLUGIN_ROOT}/scripts/install_dasel.py.

Commands

Install or update to latest version:

${CLAUDE_PLUGIN_ROOT}/scripts/install_dasel.py

Force reinstall (even if already at latest version):

${CLAUDE_PLUGIN_ROOT}/scripts/install_dasel.py --force

Preview what would happen without making changes:

${CLAUDE_PLUGIN_ROOT}/scripts/install_dasel.py --dry-run

Install to a custom directory instead of the default:

${CLAUDE_PLUGIN_ROOT}/scripts/install_dasel.py --bin-dir /custom/path

Verify Installation

After install, confirm dasel is available:

dasel --version

Expected output format: dasel version v3.x.x

Supported Platforms

Linux x86_64 (amd64)
Linux ARM64 (aarch64)
Windows x64 (native + WSL2)

WSL2 uses the Linux binary (dasel_linux_amd64), not the Windows .exe. The WSL2 environment is a full Linux subsystem.

Troubleshooting

"command not found" after install

~/.local/bin is not in PATH. Add it:

export PATH="$HOME/.local/bin:$PATH"

Make persistent by adding to ~/.bashrc or ~/.zshrc:

echo 'export PATH="$HOME/.local/bin:$PATH"' >> ~/.bashrc
source ~/.bashrc

Download failures

Check internet connectivity: curl -I https://api.github.com
GitHub API rate limits: unauthenticated requests are limited to 60/hour. Set GITHUB_TOKEN environment variable for higher limits.
Retry with --force after transient failures.

SHA256 mismatch

The install script verifies the downloaded binary against the SHA256 digest from the GitHub API response. A mismatch indicates a corrupted download or tampered binary.

Fix: re-download with --force:

Read the full file on GitHub · 103 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.

3d ago First seen · 103 lines · 31 tokens per session scan A f17b7325dbfa

Subscribe to this mod's changes

setup is a skill published in the GitHub repository Jamie-BitFlight/claude_skills (65 stars, last pushed today), licensed MIT. It adds 31 tokens to every session and 626 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 2026-09-03.

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setup