compose

compose is a skill for Claude Code from goldsky-io/goldsky-agent. It costs 217 tokens per session (5,542 once invoked), scanned D, original, no licence file.

A general-purpose guide to Goldsky Compose, a TypeScript framework for connecting off-chain services with blockchain contracts. It covers Compose concepts, documentation, pricing, functionality, and limits.

In plain words
What is it for?
Use it for questions about Compose itself, including how it works, what it supports, and where its limitations are.
Why use it?
It provides the background needed to understand what Compose can do before choosing or building a workflow.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the goldsky plugin — 22 skills, 1 agent, 2 hooks shipped together

Good fit Use it for questions about Compose itself, including how it works, what it supports, and where its limitations are.

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

Made for: Claude Code.

Or install goldsky, the plugin that ships this one along with the rest of its 22 skills, 1 agent, 2 hooks.

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 compose

README.md
[![agentmods](https://agentmods.dev/badge/skills/goldsky-io/goldsky-agent/compose/github.svg)](https://agentmods.dev/skills/goldsky-io/goldsky-agent/compose)
Your own site
<a href="https://agentmods.dev/skills/goldsky-io/goldsky-agent/compose"><img src="https://agentmods.dev/badge/skills/goldsky-io/goldsky-agent/compose/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 compose

Your own site · 80×15
<a href="https://agentmods.dev/skills/goldsky-io/goldsky-agent/compose"><img src="https://agentmods.dev/badge/skills/goldsky-io/goldsky-agent/compose.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 217 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,542 The whole file, excluding the scripts and references it only reads on demand.
Security scan D 3 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 $0.00217 $0.05542
Opus 5 $0.00109 $0.02771
Sonnet 5 $0.00043 $0.01108
Haiku 4.5 $0.00022 $0.00554

Measured 10d ago against content hash 3ed94926e031, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade D, and why

compose scanned grade D with 3 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 10d 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.

Sends data to an external URLmediumData exfiltration

A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.

Invoke: `curl -X POST -H "Authorization: Bearer $TOKEN" -d '{"amount": 42}' https://<app-url>/tasks/manual_fire`.

Downloads and executes remote codehighSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

curl https://goldsky.com | sh

Makes network callslowCapability

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

curl https://goldsky.com | sh
skills/compose/SKILL.md · 356 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. 10d ago First seen · 356 lines · 217 tokens per session scan D 3ed94926e031

Subscribe to this mod's changes

compose is a skill published in the GitHub repository goldsky-io/goldsky-agent (12 stars, last pushed 9d ago), with no licence file. It adds 217 tokens to every session and 5,542 once invoked, about $0.0011 per session on Opus 5. A static security scan graded it D with 3 findings (sends data to an external url, downloads and executes remote code, 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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