stitch-skill-creator

stitch-skill-creator is a skill for Claude Code from gabelul/stitch-kit. It costs 61 tokens per session (1,773 once invoked), scanned A, original, Apache-2.0.

A guide for creating new stitch-kit skills, which are reusable instructions that add support for a framework, domain, tool, or analysis task. It standardizes names, file structure, examples, and the design process.

In plain words
What is it for?
Use it when adding support for a framework such as Astro, Qwik, or Flutter, creating a domain-specific prompt guide, adding a tool wrapper, or creating another SKILL.md file.
Why use it?
It removes the need to decide the format and naming rules for each new skill. It helps new skills fit the rest of the stitch-kit plugin.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the stitch-kit plugin — 36 skills, 1 agent, 2 hooks shipped together

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.

agentmods
npx agentmods add skills/gabelul/stitch-kit/stitch-skill-creator
Any agent
npx skills add gabelul/stitch-kit --skill stitch-skill-creator
Clone the repo
git clone --depth 1 https://github.com/gabelul/stitch-kit

Made for: Claude Code.

Or install stitch-kit, the plugin that ships this one along with the rest of its 36 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 stitch-skill-creator

README.md
[![agentmods](https://agentmods.dev/badge/skills/gabelul/stitch-kit/stitch-skill-creator.svg)](https://agentmods.dev/skills/gabelul/stitch-kit/stitch-skill-creator)
Your own site
<a href="https://agentmods.dev/skills/gabelul/stitch-kit/stitch-skill-creator"><img src="https://agentmods.dev/badge/skills/gabelul/stitch-kit/stitch-skill-creator.svg" alt="Measured on agentmods" height="20"></a>
Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,773 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original 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 $0.00061 $0.01773
Opus 5 $0.00030 $0.00886
Sonnet 5 $0.00012 $0.00355
Haiku 4.5 $0.00006 $0.00177

Measured 6d ago against content hash 23bdadbede3d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

stitch-skill-creator 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 6d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/init_stitch_skill.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/stitch-skill-creator/SKILL.md · 258 lines

How it starts

The opening of the file, as written. The whole thing — 258 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Stitch Skill Creator

A factory for creating new stitch-kit skills. Enforces standard structure, naming conventions, and the plugin's architectural patterns.

When to use this skill

  • Adding support for a new framework (e.g. "Astro", "Qwik", "Flutter")
  • Creating a domain-specific prompt architect (e.g. stitch-ui-ecommerce-architect)
  • Adding a new quality tool (e.g. stitch-performance, stitch-seo)
  • Any time you need a new SKILL.md that integrates with the stitch-kit ecosystem

Naming conventions

Skill type Name pattern Example
Framework conversion stitch-[framework]-components stitch-astro-components
Domain prompt architect stitch-ui-[domain]-architect stitch-ui-ecommerce-architect
MCP wrapper stitch-mcp-[tool-name] stitch-mcp-edit-screen
Quality / analysis tool stitch-[capability] stitch-performance
Meta / utility stitch-[name] stitch-setup

Rules:

  • Always kebab-case
  • Always starts with stitch-
  • Framework conversion skills end with -components
  • MCP wrappers follow stitch-mcp-{snake_case_tool → kebab} from docs/mcp-naming-convention.md

Required directory structure

skills/[skill-name]/
├── SKILL.md              ← Required: frontmatter + workflow (keep under 500 lines)
├── examples/
│   └── usage.md          ← Required: 2+ worked examples
├── resources/            ← Optional: templates, checklists, reference tables
│   ├── component-template.[ext]
│   └── architecture-checklist.md
├── scripts/              ← Optional: bash scripts
│   └── fetch-stitch.sh   ← Copy from stitch-mcp-get-screen/scripts/ if needed
└── references/           ← Optional: style guides, contracts, long reference docs

SKILL.md template

---
name: stitch-[skill-name]
description: [One clear sentence — when to use this skill and what it does. This is used for routing by the orchestrator and for marketplace display.]
allowed-tools:
  - "stitch*:*"   # Include if skill calls Stitch MCP tools
  - "Bash"        # Include if skill runs shell commands
  - "Read"        # Usually yes
  - "Write"       # Usually yes
---

# Stitch → [Target] [Type]

**Constraint:** Only use this skill when the user explicitly mentions "Stitch" [and any additional trigger condition].

[One sentence explaining what this skill does and who the agent "is" while using it.]

## When to use this skill vs. similar skills

[Table comparing this skill to its nearest alternatives — help the orchestrator route correctly]

## Prerequisites

[What the user/environment needs before this skill can run]

## Step 1: Retrieve the design

1. Run `list_tools` → find Stitch MCP prefix
2. Call `[prefix]:get_screen` with numeric `projectId` and `screenId`
3. Download HTML: `bash scripts/fetch-stitch.sh "[htmlCode.downloadUrl]" "temp/source.html"`

## Step 2: [Core conversion / workflow]

[The main logic of this skill]

## Step N: Output

[What the skill produces — files, code, commands]

## Troubleshooting

| Issue | Fix |
|-------|-----|

## References

- `resources/component-template.[ext]` — [description]
- `resources/architecture-checklist.md` — Pre-ship checklist
- `scripts/fetch-stitch.sh` — Reliable GCS HTML downloader

Read the full file on GitHub · 258 lines

Files

What ships with it

2 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. 6d ago First seen · 258 lines · 61 tokens per session scan A 23bdadbede3d

Subscribe to this mod's changes

stitch-skill-creator is a skill published in the GitHub repository gabelul/stitch-kit (43 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 61 tokens to every session and 1,773 once invoked, about $0.0003 per session on Opus 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.

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