jsr

jsr is a skill for Claude Code, Codex from dtinth/agent-skills. It costs 49 tokens per session (1,123 once invoked), scanned A, original, no licence file.

A guide for creating and maintaining packages in JSR, a registry for JavaScript and TypeScript packages.

In plain words
What is it for?
Use it to publish a package to JSR, start a JSR project, configure exports, write documentation, or troubleshoot publishing.
Why use it?
It helps set up package publishing and resolve common problems with exports, documentation, and JSR releases.

Skill for Claude CodeCodex

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

Good fit Use it to publish a package to JSR, start a JSR project, configure exports, write documentation, or troubleshoot publishing.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/dtinth/agent-skills/jsr
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 dtinth/agent-skills --skill jsr
Clone the repo
git clone --depth 1 https://github.com/dtinth/agent-skills

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 jsr

README.md
[![agentmods](https://agentmods.dev/badge/skills/dtinth/agent-skills/jsr.svg)](https://agentmods.dev/skills/dtinth/agent-skills/jsr)
Your own site
<a href="https://agentmods.dev/skills/dtinth/agent-skills/jsr"><img src="https://agentmods.dev/badge/skills/dtinth/agent-skills/jsr.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 1,123 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 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 $0.01123
Opus 5 $0.00024 $0.00562
Sonnet 5 $0.00010 $0.00225
Haiku 4.5 $0.00005 $0.00112

Measured 6d ago against content hash e08c4e3e0d59, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

jsr 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.

jsr/SKILL.md · 165 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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 · 165 lines · 49 tokens per session scan A e08c4e3e0d59

Subscribe to this mod's changes

jsr is a skill published in the GitHub repository dtinth/agent-skills (2 stars, last pushed 6mo ago), with no licence file. It adds 49 tokens to every session and 1,123 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 2026-08-31.

Related

Other skills, from other repositories

no-bare-casts

Writing as in TypeScript or TSX production code, modifying a file that contains a bare as cast, silencing a type error with a cast, encountering as unknown as, or reviewing a cast site.

prisma/orm · 52 tokens

aws-sst-development

SST v4 (Ion) expert for managing AWS resources as code with the Pulumi-backed framework.

sickn33/agentic-awesome-skills · 26 tokens

league-akari-shard-development

Use when creating, extending, refactoring, splitting, or reviewing League Akari main or renderer shards, including shard file organization, controller/loader/executor/handler boundaries, naming conventions, renderer TSX usage, platform guards, and public contract compatibility.

LeagueAkari/LeagueAkari · 58 tokens

dd-code-generation

Use pup CLI for immediate Datadog operations or generate code for integration into applications.

DataDog/pup · 16 tokens

migrate-better-result-3

Migrate a TypeScript codebase from better-result 2.x to 3.0. Use when upgrading better-result across the TaggedError syntax, removed Result serialization helpers, recovery inference, matching, or retry APIs.

dmmulroy/better-result · 52 tokens

fast-typescript-check

Keep www-sacred's TypeScript fast to type-check and fast to run. Use when touching the ASCII/canvas animation components (the only real per-frame code here), tightening type-check wall-clock, or auditing a change for runtime or compiler regressions. Scoped to this repo — a React 19 / Next.js 16 component library plus…

internet-development/www-sacred · 84 tokens