Agent skill

Bch Development

by hiromaily in hiromaily/go-crypto-wallet

Bitcoin Cash (BCH) API implementation rules. An agent skill from hiromaily/go-crypto-wallet.

MITAuto-check passedAI & LLM Engineering

Install Bch Development

skills CLI

$ npx skills add hiromaily/go-crypto-wallet --skill bch-development -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install hiromaily/go-crypto-wallet bch-development --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/hiromaily/go-crypto-wallet.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/bch-development .claude/skills/bch-development && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "bch-development" agent skill from https://github.com/hiromaily/go-crypto-wallet/tree/main/.claude/skills/bch-development into .claude/skills/bch-development/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bch-development", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/hiromaily/go-crypto-wallet/tree/main/.claude/skills/bch-development

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add hiromaily/go-crypto-wallet --skill bch-development -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install hiromaily/go-crypto-wallet bch-development --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/hiromaily/go-crypto-wallet.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/bch-development .agents/skills/bch-development && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "bch-development" agent skill from https://github.com/hiromaily/go-crypto-wallet/tree/main/.claude/skills/bch-development into .agents/skills/bch-development/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bch-development", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add hiromaily/go-crypto-wallet --skill bch-development -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install hiromaily/go-crypto-wallet bch-development --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/hiromaily/go-crypto-wallet.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/bch-development .cursor/skills/bch-development && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "bch-development" agent skill from https://github.com/hiromaily/go-crypto-wallet/tree/main/.claude/skills/bch-development into .cursor/skills/bch-development/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bch-development", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/hiromaily/go-crypto-wallet.git --path .claude/skills/bch-development

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add hiromaily/go-crypto-wallet --skill bch-development -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install hiromaily/go-crypto-wallet bch-development --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/hiromaily/go-crypto-wallet.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/bch-development .gemini/skills/bch-development && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "bch-development" agent skill from https://github.com/hiromaily/go-crypto-wallet/tree/main/.claude/skills/bch-development into .gemini/skills/bch-development/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bch-development", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install hiromaily/go-crypto-wallet bch-development

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add hiromaily/go-crypto-wallet --skill bch-development -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/hiromaily/go-crypto-wallet.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/bch-development .github/skills/bch-development && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "bch-development" agent skill from https://github.com/hiromaily/go-crypto-wallet/tree/main/.claude/skills/bch-development into .github/skills/bch-development/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bch-development", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add hiromaily/go-crypto-wallet --skill bch-development -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install hiromaily/go-crypto-wallet bch-development --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/hiromaily/go-crypto-wallet.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/bch-development .opencode/skills/bch-development && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "bch-development" agent skill from https://github.com/hiromaily/go-crypto-wallet/tree/main/.claude/skills/bch-development into .opencode/skills/bch-development/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bch-development", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: bch-development
GitHub stars: 128
Token cost: ~1.6k tokens
SKILL.md length: 333 words
Files: 1
Skills in repo: 17
Repo updated: Apr 22, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Bitcoin Cash (BCH) API implementation rules. An agent skill from hiromaily/go-crypto-wallet.

Works in 3 steps: Create a new file in… → Implement the method with the same name… → This "overrides" the embedded Bitcoin…
Working on BCH-related code in internal/infrastructure/api/btc/bch/
SKILL.md covers 🚨 CRITICAL: Override Pattern…, Rules, Why This Pattern? and Implementation Examples, plus 7 more sections
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Bch Development is an agent skill from hiromaily/go-crypto-wallet. Bitcoin Cash (BCH) API implementation rules. Critical pattern for embedding Bitcoin struct and overriding BCH-specific methods. Use when working on BCH-related code in internal/infrastructure/api/btc/bch/.

Its SKILL.md is about 1.6k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in AI & LLM Engineering, covering Embeddings. It works with Bitcoin. The repository describes itself as: Cryptocurrency wallet for trading for Bitcoin, Bitcoin cash, Ethereum, ERC20, XRP Leger (Ripple). The licence is MIT.

When your agent uses it

Working on BCH-related code in internal/infrastructure/api/btc/bch/
Tasks that involve Embeddings

Example prompts

“/bch-development”

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

Create a new file in internal/infrastructure/api/btc/bch/
Implement the method with the same name on BitcoinCash
This "overrides" the embedded Bitcoin method

What it can do on your machine

Read from SKILL.md and the folder at commit 798ab10. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are go).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Bch Development loads about 1.6k tokens when it runs. Until then it costs about 55 tokens; SKILL.md has 333 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~55
When it runs · the whole SKILL.md, loaded when a task matches: ~1.6k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from hiromaily/go-crypto-wallet at commit 798ab10, republished under its MIT licence (© hiromaily). 333 words, ~1,639 tokens.

Download SKILL.mdSave it as .claude/skills/bch-development/SKILL.md (or your agent's skills folder).

name: bch-development
description: Bitcoin Cash (BCH) API implementation rules. Critical pattern for embedding Bitcoin struct and overriding BCH-specific methods. Use when working on BCH-related code in internal/infrastructure/api/btc/bch/.

BCH (Bitcoin Cash) Development Rules

🚨 CRITICAL: Override Pattern for BCH-Specific Logic

This is a non-negotiable architectural rule. BCH implementation uses struct embedding with method override pattern.

Architecture Overview

// internal/infrastructure/api/btc/bch/bitcoin_cash.go
type BitcoinCash struct {
    apibtcimpl.Bitcoin  // Embeds BTC implementation
}

Key Principle: BitcoinCash embeds Bitcoin, inheriting all BTC methods by default.

Rules

✅ DO: Override on BCH Side

When BCH requires different logic from BTC:

Create a new file in internal/infrastructure/api/btc/bch/
Implement the method with the same name on BitcoinCash
This "overrides" the embedded Bitcoin method

❌ DON'T: Modify BTC Side for BCH

NEVER modify internal/infrastructure/api/btc/btc/ for BCH-specific requirements
NEVER add BCH conditionals in BTC code
NEVER add BCH-specific types or logic to the BTC package

Why This Pattern?

Reason	Explanation
Separation of Concerns	BTC code remains pure and focused
Maintainability	BCH changes don't affect BTC
Clarity	BCH differences are explicit in BCH directory
Safety	BTC modifications can't accidentally break BCH

Implementation Examples

Example 1: GetAddressInfo Override

BCH has a different response structure for getaddressinfo RPC:

// internal/infrastructure/api/btc/bch/address.go
// BCH-specific response type
type GetAddressInfoResult struct {
    Address      string `json:"address"`
    ScriptPubKey string `json:"scriptPubKey"`
    Label        string `json:"label,omitempty"`  // BCH uses Label (singular)
    Labels       []struct {                       // BCH has different Labels structure
        Name    string `json:"name"`
        Purpose string `json:"purpose"`
    } `json:"labels"`
    // ... other BCH-specific fields
}

// Override GetAddressInfo for BCH
func (b *BitcoinCash) GetAddressInfo(addr string) (*dtobtc.AddressInfo, error) {
    // BCH-specific implementation
    // ...
}

Example 2: GetAccount Override

BCH requires different logic for getting account info:

// internal/infrastructure/api/btc/bch/account.go
func (b *BitcoinCash) GetAccount(addr string) (string, error) {
    // BCH calls GetAddressInfo (which is also overridden)
    res, err := b.GetAddressInfo(addr)
    if err != nil {
        return "", fmt.Errorf("fail to call btc.GetAddressInfo() in bch: %w", err)
    }
    // BCH-specific label extraction
    if len(res.Labels) == 0 {
        return "", nil
    }
    return res.Labels[0], nil
}

Example 3: Chain Parameters Override

BCH has different network magic numbers:

// internal/infrastructure/api/btc/bch/bitcoin_cash.go
const (
    MainnetMagic wire.BitcoinNet = 0xe8f3e1e3  // BCH-specific
    TestnetMagic wire.BitcoinNet = 0xf4f3e5f4  // BCH-specific
    Regtestmagic wire.BitcoinNet = 0xfabfb5da  // BCH-specific
)

func (b *BitcoinCash) initChainParams() {
    // Override chain parameters for BCH
}

BCH vs BTC: Feature Differences

Feature	BTC	BCH
SegWit	✅ Supported	❌ Not supported
Taproot	✅ Supported	❌ Not supported
Address Format	Legacy, SegWit, Taproot	Legacy, CashAddr
Network Magic	BTC values	BCH-specific values

Directory Structure

internal/infrastructure/api/btc/
├── btc/                      # BTC implementation (DO NOT modify for BCH)
│   ├── bitcoin.go            # Bitcoin struct and methods
│   ├── account.go
│   ├── address.go
│   └── ...
├── bch/                      # BCH overrides (ADD new files here)
│   ├── bitcoin_cash.go       # BitcoinCash struct (embeds Bitcoin)
│   ├── account.go            # Override: GetAccount
│   ├── address.go            # Override: GetAddressInfo
│   └── ...
└── connection.go             # Shared connection logic

Checklist for BCH Changes

When implementing BCH-specific logic:

File created in internal/infrastructure/api/btc/bch/ (NOT in btc/)
Method has same signature as the BTC method being overridden
No changes made to internal/infrastructure/api/btc/btc/
BCH-specific types defined in BCH package (if needed)
Error messages include "bch" for traceability

Common Mistakes

❌ WRONG: Adding BCH Logic to BTC

// internal/infrastructure/api/btc/btc/account.go
func (b *Bitcoin) GetAccount(addr string) (string, error) {
    if b.coinTypeCode == domainCoin.BCH {  // DON'T DO THIS!
        // BCH-specific logic
    }
    // BTC logic
}

✅ CORRECT: Override in BCH Package

// internal/infrastructure/api/btc/bch/account.go
func (b *BitcoinCash) GetAccount(addr string) (string, error) {
    // BCH-specific logic here
}

Technical Note: How Go Embedding Works

When BitcoinCash embeds Bitcoin:

All Bitcoin methods are "promoted" to BitcoinCash
If BitcoinCash defines a method with the same name, it takes precedence
The embedded Bitcoin methods can still be called via b.Bitcoin.MethodName()

// Call overridden method (uses BitcoinCash.GetAddressInfo)
info, _ := bch.GetAddressInfo(addr)

// Call embedded method directly (uses Bitcoin.GetAddressInfo)
info, _ := bch.Bitcoin.GetAddressInfo(addr)

File	Purpose
`internal/infrastructure/api/btc/bch/bitcoin_cash.go`	BitcoinCash struct definition
`internal/infrastructure/api/btc/btc/bitcoin.go`	Bitcoin struct (embedded by BCH)
`internal/application/ports/btc/interface.go`	Bitcoiner interface

Files

Just SKILL.md in .claude/skills/bch-development of hiromaily/go-crypto-wallet.

Open the folder on GitHubat commit 798ab10

Compare with similar skills

Bch Development next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Bch Development compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Bch Development this skillhiromaily/go-crypto-wallet	128	—	~1.6k	Automated safety check: Pass	MIT	5 mo ago
Chroma Vector DatabaseOrchestra-Research/AI-Research-SKILLs	13k	7 repos	~2.3k	Automated safety check: Pass	MIT	3 mo ago
SageMaker Serving Image Selectionhuggingface/skills	11k	1 repos	~4.6k	Automated safety check: Pass	Apache-2.0	yesterday
Codebase Managementgiancarloerra/SocratiCode	3.3k	1 repos	~1.8k	Automated safety check: Pass	AGPL-3.0	yesterday
CLIP Image-Text MatchingOrchestra-Research/AI-Research-SKILLs	13k	7 repos	~1.7k	Automated safety check: Pass	MIT	3 mo ago
Sentence-Transformers Training Routerhuggingface/skills	11k	1 repos	~2.6k	Automated safety check: Pass	Apache-2.0	yesterday

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Questions about Bch Development

What does Bch Development do?

Bitcoin Cash (BCH) API implementation rules. An agent skill from hiromaily/go-crypto-wallet. Bch Development is an agent skill from hiromaily/go-crypto-wallet. Bitcoin Cash (BCH) API implementation rules.

When should I use Bch Development?

Bch Development fits situations like: working on BCH-related code in internal/infrastructure/api/btc/bch/; tasks that involve Embeddings.

How do I install Bch Development in Claude Code?

Run `npx skills add hiromaily/go-crypto-wallet --skill bch-development -a claude-code`. Or copy the skill folder (.claude/skills/bch-development in hiromaily/go-crypto-wallet) into .claude/skills/bch-development in your project. Claude Code loads it when a task matches its description.

How do I install Bch Development in Codex?

Run `npx skills add hiromaily/go-crypto-wallet --skill bch-development -a codex`. Or copy the skill folder (.claude/skills/bch-development in hiromaily/go-crypto-wallet) into .agents/skills/bch-development in your project. Codex loads it when a task matches its description.

Can I use Bch Development in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add hiromaily/go-crypto-wallet --skill bch-development -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/bch-development, .gemini/skills/bch-development, .github/skills/bch-development and .opencode/skills/bch-development in your project.

What does Bch Development need to run?

SKILL.md names no scripts, command-line tools or credentials: Bch Development is instructions for the agent only.

Does Bch Development access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Bch Development safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Bch Development use?

Bch Development is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Bch Development use?

About 1.6k tokens (SKILL.md is roughly 6.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Bch Development?

Skills that share tags, products or a category with Bch Development: Chroma Vector Database (Orchestra-Research/AI-Research-SKILLs, 13k stars), SageMaker Serving Image Selection (huggingface/skills, 11k stars), Codebase Management (giancarloerra/SocratiCode, 3.3k stars) and CLIP Image-Text Matching (Orchestra-Research/AI-Research-SKILLs, 13k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Bch Development?

hiromaily (a GitHub user) maintains it in hiromaily/go-crypto-wallet, which has 128 GitHub stars. The repository holds 17 skills in this directory. The repository was last updated on April 22, 2026.

Source: hiromaily/go-crypto-wallet on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Bch Development

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

BCH (Bitcoin Cash) Development Rules

🚨 CRITICAL: Override Pattern for BCH-Specific Logic

Architecture Overview

Rules

✅ DO: Override on BCH Side

❌ DON'T: Modify BTC Side for BCH

Why This Pattern?

Implementation Examples

Example 1: GetAddressInfo Override

Example 2: GetAccount Override

Example 3: Chain Parameters Override

BCH vs BTC: Feature Differences

Directory Structure

Checklist for BCH Changes

Common Mistakes

❌ WRONG: Adding BCH Logic to BTC

✅ CORRECT: Override in BCH Package

Technical Note: How Go Embedding Works

Related Files

Related Documentation

Files

Compare with similar skills

Similar skills

More from hiromaily/go-crypto-wallet

Related

Questions about Bch Development