Coin Modules

Organization

LedgerHQ

coin-modules

Rules and layout for coin module packages under libs/coin-modules/. Read when adding or modifying a coin module.

Overview

Publisher	LedgerHQ
Repository	`ledger-live`
Skill name	`coin-modules`
Stars	622
Forks	491
Bundled files	Instructions only
License	MIT
Links	Skill source Repository

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
Self-contained
Everything the model needs lives in the instructions — no extra files to sync.
Open source
Published by LedgerHQ on GitHub. Read the source before you install it.

Installation

Install the Coin Modules AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
https://github.com/LedgerHQ/ledger-live/tree/develop/.agents/skills/coin-modules
Enable the skill in any chat where you want it available.

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/LedgerHQ/ledger-live.git /tmp/ledger-live
mkdir -p .claude/skills
cp -r /tmp/ledger-live/.agents/skills/coin-modules .claude/skills/coin-modules

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Coin Modules in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Coin Modules on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Coin Modules is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

Coin Modules

Each blockchain family lives in its own package under libs/coin-modules/coin-<family>.
Package name: @ledgerhq/coin-<family>

Coin modules are one of the few things that still belong in legacy libs/: they migrate to LedgerHQ/coin-modules, not to the monorepo layers.

Do not create a new coin-module if it fits the ecosystem of an existing one.
No packages other than coin-modules are allowed in libs/coin-modules/.

Directory Layout

Directory / file	Purpose
`api/`	Coin Module API surface — implements `CoinModuleApi` from `@ledgerhq/coin-module-framework/api/index`; restricted imports apply (see below)
`logic/`	Core blockchain logic, agnostic of Bridge or API; only depends on `network/` and external libs; restricted imports apply (see below)
`network/`	Communication with explorer / indexer / node; restricted imports apply (see below)
`types/`	Model definitions, not related to network
`bridge/` (legacy)	`CurrencyBridge` + `AccountBridge` implementation
`signer/` (legacy)	Hardware wallet signer interface and device address resolver

Tests: *.unit.test.ts (co-located), *.test.ts (integration, no network), *.integ.test.ts (real network, separate jest.integ.config.js).

Dependencies

Prefer native dependencies from the blockchain foundation and well-established open-source libraries.
Avoid proprietary third-party SDKs or closed-source vendor packages.

In api/, logic/, and network/, the only permitted @ledgerhq/* imports are @ledgerhq/logs, @ledgerhq/live-network, @ledgerhq/coin-module-framework, and @ledgerhq/ledger-wallet-framework (enforced by eslint/no-restricted-imports in libs/coin-modules/.oxlintrc.json). Other directories (bridge/, signer/, types/) have no such restriction.

Integration Paths

1. Coin Module API path (preferred) — export createApi(config, currencyId) returning CoinModuleApi (from @ledgerhq/coin-module-framework/api/index). Enable the family in libs/ledger-live-common/src/bridge/generic-coin-framework/genericCoinFrameworkFamilies.json (checked by isGenericCoinFrameworkFamily). For methods that don't apply, throw new Error("<method> is not supported").

2. Classic JS Bridge (legacy, do not use) — export createBridges(signerContext, coinConfig) returning { currencyBridge, accountBridge }. Wired via libs/ledger-live-common/src/families/<family>/setup.ts.

Integ Test Requirements (Coin Module API)

craftTransaction / estimateFees: cover each transaction type (token transfer, native, memo, delegation, …)
getBalance / listOperations: cover each asset type in the module
getBlockInfo / getBlock / listOperations / getStakes: compare against a reference block/op/stake to validate metadata parsing
getValidators: validate metadata against a reference validator
lastBlock: block height > 0, valid date, hash with expected length
getNextSequence: higher than current nonce for a known account

live-common Import Rule

In libs/ledger-live-common/src, runtime imports of coin-specific code (from @ledgerhq/coin-* or ../families/*) are only allowed inside src/coin-modules/ and src/families/. All other shared code must access coin-specific behaviour through coinModuleLoaders from src/coin-modules/loaders.ts.

Frequently asked questions

What does the Coin Modules AI skill do?

Rules and layout for coin module packages under libs/coin-modules/. Read when adding or modifying a coin module.

Why use Coin Modules on TypingMind?

Because you install it once and use it with any model. Coin Modules is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Coin Modules in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/LedgerHQ/ledger-live/tree/develop/.agents/skills/coin-modules. TypingMind reads its SKILL.md and installs it as a skill you can enable per chat.

Which AI models can use Coin Modules?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Coin Modules?

As many as you like. As long as a model supports skills, you can use Coin Modules with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Coin Modules AI skill free?

Yes. It is published on GitHub by LedgerHQ under the MIT license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

Coin Modules

Directory Layout

Dependencies

Integration Paths

Integ Test Requirements (Coin Module API)

live-common Import Rule

Frequently asked questions

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