gtars

gtars is a skill for Claude Code from agentlas-ai/agentlas-desktop. It costs 46 tokens per session (3,309 once invoked), scanned A, a copy of gtars, Apache-2.0.

A toolkit for working with genomic intervals and reference sequences. Genomic intervals are regions on a genome, such as genes, peaks, or other measured ranges; the toolkit includes Rust code, Python bindings, and a command-line program.

In plain words
What is it for?
It helps find overlaps, calculate coverage and counts, build consensus regions, process fragments, tokenize data, and work with BED or refget resources.
Why use it?
It provides local operations for comparing, counting, and combining genomic regions without relying on a remote service. It also supports planning around reference-sequence identifiers and data provenance.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit It helps find overlaps, calculate coverage and counts, build consensus regions, process fragments, tokenize data, and work with BED or refget resources.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/agentlas-ai/agentlas-desktop/gtars
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.

Any agent
npx skills add agentlas-ai/agentlas-desktop --skill gtars
Clone the repo
git clone --depth 1 https://github.com/agentlas-ai/agentlas-desktop

Made for: Claude Code.

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 gtars

README.md
[![agentmods](https://agentmods.dev/badge/skills/agentlas-ai/agentlas-desktop/gtars/github.svg)](https://agentmods.dev/skills/agentlas-ai/agentlas-desktop/gtars)
Your own site
<a href="https://agentmods.dev/skills/agentlas-ai/agentlas-desktop/gtars"><img src="https://agentmods.dev/badge/skills/agentlas-ai/agentlas-desktop/gtars/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for gtars

Your own site · 80×15
<a href="https://agentmods.dev/skills/agentlas-ai/agentlas-desktop/gtars"><img src="https://agentmods.dev/badge/skills/agentlas-ai/agentlas-desktop/gtars.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,309 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 88% copy Near-identical to another mod 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 $0.00046 $0.03309
Opus 5.5 $0.00018 $0.01324
Sonnet 5.5 $0.00009 $0.00662
Haiku 4.5 $0.00005 $0.00331

Measured 1mo ago against content hash 1afe0002e97d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

gtars 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 1mo ago.

The scan reads SKILL.md. This mod also ships 8 executable files (scripts/__init__.py, scripts/_common.py, scripts/artifact_inspector.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Origin

This is a copy

88% identical to gtars — 92 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

plugins/agentlas-science-skills/skills/gtars/SKILL.md · 300 lines

How it starts

The opening of the file, as written. The whole thing — 300 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Gtars

Gtars provides native Rust implementations, Python bindings, and a feature-gated gtars binary for genomic interval and reference-sequence work. Start with the bundled local inspectors; call upstream code only after the data contract, provenance, resource bounds, and side effects are explicit.

Verified snapshot (2026-07-23)

  • Python: gtars==0.9.2, released 2026-06-17, Requires-Python >=3.10.
  • Rust meta-crate: gtars=0.9.0, released 2026-06-15. Its default feature set is empty.
  • CLI crate/binary: gtars-cli=0.9.0; the installed binary is named gtars.
  • Direct refget crate: gtars-refget=0.9.1, released 2026-06-17. gtars=0.9.0 itself pins its component release set, which includes refget 0.9.0.
  • Upstream intentionally versions workspace crates, Python bindings, and CLI independently. Do not assume matching numbers mean matching artifacts.
  • The published docs changelog stops at 0.5.1. API examples here were checked against the 0.9.2 Python stubs/runtime and the v0.9.0 CLI/Rust source.

The license: MIT field covers this skill. Published gtars crates declare MIT, while the GitHub repository currently displays BSD-2-Clause at the root; verify the exact artifact's license before redistribution.

Native-code trust gate and exact pins

The Python wheel contains a PyO3 native extension. Cargo installation compiles a native binary and can run dependency build scripts. Treat either path as code execution:

  1. Confirm the official PyPI/crates.io/GitHub owner and immutable version.
  2. Review filenames, platform tags, release provenance, license, and SHA-256. GitHub's v0.9.0 binary release includes per-archive .sha256 sidecars.
  3. Never run an untrusted prebuilt binary, wheel, source tree, Cargo build script, or archive installer. Use isolation and CPU/RAM/disk/time limits.
  4. Keep a lockfile and artifact hashes with the analysis manifest.

Read the full file on GitHub · 300 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. 1mo ago First seen · 300 lines · 46 tokens per session scan A 1afe0002e97d

Subscribe to this mod's changes

gtars is a skill published in the GitHub repository agentlas-ai/agentlas-desktop (6 stars, last pushed yesterday), licensed Apache-2.0. It adds 46 tokens to every session and 3,309 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 88% identical to gtars, differing in 92 lines, and is treated as a copy.

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