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splatter-mcp-app: Skill for Claude Code

.agent/skills/mcp-builder/SKILL.md

mcp-builder is a skill for Claude Code, Codex from kstonekuan/splatter-mcp-app. It costs 123 tokens per session (621 once invoked), scanned A, original, no licence file.

A deprecated skill for building MCP servers with the mcp-use framework. It has been replaced by mcp-app-builder.

In plain words
What is it for?
Older MCP server-building tasks only when the replacement skill cannot be found.
Why use it?
Using it may provide outdated instructions when the replacement skill is available.

Skill for Claude CodeCodex

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

This is kstonekuan/splatter-mcp-app's own configuration. It tells Claude Code and Codex how to work on splatter-mcp-app itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything splatter-mcp-app configures →

not rated 12repo 8mo ago A scan 123 tokens no licence
View source ↗ kstonekuan/splatter-mcp-app
Reuse

Borrowing it

Nothing to install: this file belongs to kstonekuan/splatter-mcp-app. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/kstonekuan/splatter-mcp-app/main/.agent/skills/mcp-builder/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/kstonekuan/splatter-mcp-app

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 mcp-builder

README.md
[![agentmods](https://agentmods.dev/badge/skills/kstonekuan/splatter-mcp-app/mcp-builder/github.svg)](https://agentmods.dev/skills/kstonekuan/splatter-mcp-app/mcp-builder)
Your own site
<a href="https://agentmods.dev/skills/kstonekuan/splatter-mcp-app/mcp-builder"><img src="https://agentmods.dev/badge/skills/kstonekuan/splatter-mcp-app/mcp-builder/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 mcp-builder

Your own site · 80×15
<a href="https://agentmods.dev/skills/kstonekuan/splatter-mcp-app/mcp-builder"><img src="https://agentmods.dev/badge/skills/kstonekuan/splatter-mcp-app/mcp-builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 123 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 621 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 $0.00123 $0.00621
Opus 5.5 $0.00049 $0.00248
Sonnet 5.5 $0.00025 $0.00124
Haiku 4.5 $0.00012 $0.00062

Measured 2mo ago against content hash a4a188f788ad, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mcp-builder 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 2mo 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.

.agent/skills/mcp-builder/SKILL.md · 63 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

Files

What ships with it

11 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 2mo ago First seen · 63 lines · 123 tokens per session scan A a4a188f788ad

Subscribe to this mod's changes

mcp-builder is a skill published in the GitHub repository kstonekuan/splatter-mcp-app (12 stars, last pushed 8mo ago), with no licence file. It adds 123 tokens to every session and 621 once invoked, about $0.0005 per session on Opus 5.5. 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 2026-08-30.

3dgsBuilding agentschatgptgaussian-splattingmcpmcp-appsmcp-server
Related

mcp-builder compared with skills from other repositories

mcp-builder next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
mcp-builderkstonekuan/splatter-mcp-appSkill128mo agononeA123Claude Code, Codex
chapplin-mcp-app-builderssssota/chapplinSkill169d agoMITA77Claude Code, Codex
MeiGenjau123/MeiGen-AI-Design-MCPSkill1.8kyesterdayMITA45Claude Code, Codex
Product Photoshoot Workflowjau123/MeiGen-AI-Design-MCPSkill1.8kyesterdayMITA111Claude Code
supersplatznlgis/opengis-skillsSkill7610d agoMITA75Claude Code, Codex
threebrowser-studio-mcpSamG-Coder/ThreeBrowserStudioSkill255d agoMITA122Codex
odoo-agency-fleet-reviewerpipe-org/mcp-odooSkill4272mo agoMITA77Claude Code, Codex