Agent skill

MCP

Guide for working with Splitrail's MCP server. An agent skill from Piebald-AI/splitrail.

Install MCP

skills CLI

$ npx skills add Piebald-AI/splitrail --skill mcp -a claude-code

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

GitHub CLI

$ gh skill install Piebald-AI/splitrail mcp --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/Piebald-AI/splitrail.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/mcp .claude/skills/mcp && 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 "mcp" agent skill from https://github.com/Piebald-AI/splitrail/tree/main/.claude/skills/mcp into .claude/skills/mcp/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mcp", 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/Piebald-AI/splitrail/tree/main/.claude/skills/mcp

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 Piebald-AI/splitrail --skill mcp -a codex

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

GitHub CLI

$ gh skill install Piebald-AI/splitrail mcp --agent codex

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

Manual copy

$ git clone --depth 1 https://github.com/Piebald-AI/splitrail.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/mcp .agents/skills/mcp && 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 "mcp" agent skill from https://github.com/Piebald-AI/splitrail/tree/main/.claude/skills/mcp into .agents/skills/mcp/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mcp", 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 Piebald-AI/splitrail --skill mcp -a cursor

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

GitHub CLI

$ gh skill install Piebald-AI/splitrail mcp --agent cursor

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

Manual copy

$ git clone --depth 1 https://github.com/Piebald-AI/splitrail.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/mcp .cursor/skills/mcp && 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 "mcp" agent skill from https://github.com/Piebald-AI/splitrail/tree/main/.claude/skills/mcp into .cursor/skills/mcp/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mcp", 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/Piebald-AI/splitrail.git --path .claude/skills/mcp

--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 Piebald-AI/splitrail --skill mcp -a gemini-cli

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

GitHub CLI

$ gh skill install Piebald-AI/splitrail mcp --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/Piebald-AI/splitrail.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/mcp .gemini/skills/mcp && 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 "mcp" agent skill from https://github.com/Piebald-AI/splitrail/tree/main/.claude/skills/mcp into .gemini/skills/mcp/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mcp", 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 Piebald-AI/splitrail mcp

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 Piebald-AI/splitrail --skill mcp -a github-copilot

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

Manual copy

$ git clone --depth 1 https://github.com/Piebald-AI/splitrail.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/mcp .github/skills/mcp && 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 "mcp" agent skill from https://github.com/Piebald-AI/splitrail/tree/main/.claude/skills/mcp into .github/skills/mcp/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mcp", 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 Piebald-AI/splitrail --skill mcp -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 Piebald-AI/splitrail mcp --agent opencode

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

Manual copy

$ git clone --depth 1 https://github.com/Piebald-AI/splitrail.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/mcp .opencode/skills/mcp && 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 "mcp" agent skill from https://github.com/Piebald-AI/splitrail/tree/main/.claude/skills/mcp into .opencode/skills/mcp/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mcp", 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: mcp
GitHub stars: 223
Token cost: ~335 tokens
SKILL.md length: 135 words
Files: 1
Skills in repo: 6
Repo updated: Oct 9, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Guide for working with Splitrail's MCP server. An agent skill from Piebald-AI/splitrail.

Works in 2 steps: Define the tool handler in… → Add request/response types to…
Modifying the MCP interface
SKILL.md covers Source Files, Available Tools, Resources and Adding a New Tool, plus 1 more section
Calls cargo

What it does

MCP is an agent skill from Piebald-AI/splitrail. Guide for working with Splitrail's MCP server. Use when adding tools, resources, or modifying the MCP interface.

Its SKILL.md is about 340 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 Agent Workflows, covering MCP servers. It works with Model Context Protocol and Qwen. The repository describes itself as: Fast, cross-platform, real-time token usage tracker and cost monitor for Claude Code / Codex CLI / Antigravity CLI / Qwen Code / Cline / Zoo Code / Kilo Code / GitHub Copilot /… The licence is MIT.

When your agent uses it

Modifying the MCP interface
Tasks that involve MCP servers

Example prompts

“/mcp”

Workflow steps

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

Define the tool handler in src/mcp/server.rs using the #[tool] macro
Add request/response types to src/mcp/types.rs if needed

What it can do on your machine

Read from SKILL.md and the folder at commit f9a8f6d. 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
Shell commands in SKILL.md call:
- cargo
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

MCP loads about 335 tokens when it runs. Until then it costs about 29 tokens; SKILL.md has 135 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~29
When it runs · the whole SKILL.md, loaded when a task matches: ~335

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 Piebald-AI/splitrail at commit f9a8f6d, republished under its MIT licence (© Piebald-AI). 135 words, ~335 tokens.

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

name: mcp
description: Guide for working with Splitrail's MCP server. Use when adding tools, resources, or modifying the MCP interface.

MCP Server

Splitrail can run as an MCP server, allowing AI assistants to query usage statistics programmatically.

bash

cargo run -- mcp

Source Files

src/mcp/mod.rs - Module exports
src/mcp/server.rs - Server implementation and tool handlers
src/mcp/types.rs - Request/response types

Available Tools

get_daily_stats - Query usage statistics with date filtering
get_model_usage - Analyze model usage distribution
get_cost_breakdown - Get cost breakdown over a date range
get_file_operations - Get file operation statistics
compare_tools - Compare usage across different AI coding tools
list_analyzers - List available analyzers

Resources

splitrail://summary - Daily summaries across all dates
splitrail://models - Model usage breakdown

Adding a New Tool

Define the tool handler in src/mcp/server.rs using the #[tool] macro
Add request/response types to src/mcp/types.rs if needed

See existing tools in src/mcp/server.rs for the pattern.

Adding a New Resource

Add URI constant to resource_uris module in src/mcp/server.rs
Add to list_resources() method
Handle in read_resource() method

Files

Just SKILL.md in .claude/skills/mcp of Piebald-AI/splitrail.

Open the folder on GitHubat commit f9a8f6d

Compare with similar skills

MCP 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.

MCP compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
MCP this skillPiebald-AI/splitrail	223	—	~335	Automated safety check: Pass	MIT	today
Marm InitLyellr88/marm-memory	419	—	~7.5k	Automated safety check: Notes	Apache-2.0	2 days ago
Extension CreatorQwenLM/qwen-code	28k	—	~5k	Automated safety check: Warn	Apache-2.0	today
Qwen Code E2E TestingQwenLM/qwen-code	28k	—	~2.1k	Automated safety check: Pass	Apache-2.0	today
Browser UseQwenLM/qwen-code-examples	143	—	~451	Automated safety check: Pass	None	4 mo ago
Computer UseQwenLM/qwen-code-examples	143	—	~632	Automated safety check: Pass	None	4 mo ago

Similar skills

Marm Init
Lyellr88/marm-memory
Guided MARM MCP setup. An agent skill from Lyellr88/marm-memory.
419 GitHub stars~7.5k tokensUpdated 2 days ago
Agent WorkflowsAuto-check: notes
Extension Creator
QwenLM/qwen-code
Create, scaffold, customize, validate, and locally test Qwen Code extensions.
28k GitHub stars~5k tokensUpdated today
Agent WorkflowsAuto-check: warnings
Qwen Code E2E Testing
QwenLM/qwen-code
Guides end-to-end testing of the Qwen Code CLI in headless mode with real model calls, MCP test servers and inspection of raw API traffic.
28k GitHub stars~2.1k tokensUpdated today
Testing & QAAuto-check passed
Browser Use
QwenLM/qwen-code-examples
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Computer Use
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Control the local desktop using the computer MCP tool from computer-use-mcp.
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Productivity & AutomationAuto-check passed
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Questions about MCP

What does MCP do?

Guide for working with Splitrail's MCP server. An agent skill from Piebald-AI/splitrail. MCP is an agent skill from Piebald-AI/splitrail. Guide for working with Splitrail's MCP server.

When should I use MCP?

MCP fits situations like: modifying the MCP interface; tasks that involve MCP servers.

How do I install MCP in Claude Code?

Run `npx skills add Piebald-AI/splitrail --skill mcp -a claude-code`. Or copy the skill folder (.claude/skills/mcp in Piebald-AI/splitrail) into .claude/skills/mcp in your project. Claude Code loads it when a task matches its description.

How do I install MCP in Codex?

Run `npx skills add Piebald-AI/splitrail --skill mcp -a codex`. Or copy the skill folder (.claude/skills/mcp in Piebald-AI/splitrail) into .agents/skills/mcp in your project. Codex loads it when a task matches its description.

Can I use MCP 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 Piebald-AI/splitrail --skill mcp -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/mcp, .gemini/skills/mcp, .github/skills/mcp and .opencode/skills/mcp in your project.

What does MCP need to run?

Going by SKILL.md and its folder, MCP needs the command-line tools its instructions call (cargo).

Does MCP 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 MCP 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 MCP use?

MCP 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 MCP use?

About 335 tokens (SKILL.md is roughly 1.3k 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 MCP?

Skills that share tags, products or a category with MCP: Marm Init (Lyellr88/marm-memory, 419 stars), Extension Creator (QwenLM/qwen-code, 28k stars), Qwen Code E2E Testing (QwenLM/qwen-code, 28k stars) and Browser Use (QwenLM/qwen-code-examples, 143 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains MCP?

Piebald-AI (a GitHub organization) maintains it in Piebald-AI/splitrail, which has 223 GitHub stars. The repository holds 6 skills in this directory. The repository was last updated on October 9, 2026.

Source: Piebald-AI/splitrail on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

MCP

Install MCP

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

MCP Server

Source Files

Available Tools

Resources

Adding a New Tool

Adding a New Resource

Files

Compare with similar skills

Similar skills

Marm Init

Extension Creator

Qwen Code E2E Testing

Browser Use

Computer Use

Local AI Agents

More from Piebald-AI/splitrail

Pricing

New Analyzer

Performance

Tui

Types

Questions about MCP

Install MCP

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

MCP Server

Source Files

Available Tools

Resources

Adding a New Tool

Adding a New Resource

Files

Compare with similar skills

Similar skills

More from Piebald-AI/splitrail

Related

Questions about MCP