scaffold-api

scaffold-api is a skill for Claude Code, Codex from porcupine-md/jonggrang. It costs 16 tokens per session (716 once invoked), scanned A, original, MIT.

A template for adding an API endpoint, which is a URL that software uses to send or receive data. It covers the route, input checks, application logic, database access when needed, registration, and tests while following the project's existing conventions.

In plain words
What is it for?
Use it to create endpoints for resources such as users, orders, or products, including common create, read, update, and delete operations.
Why use it?
It reduces the repetitive work of wiring a new endpoint through all the parts of an application. Reading the project's patterns helps the addition fit the codebase.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions AGENTS.md.

Good fit Use it to create endpoints for resources such as users, orders, or products, including common create, read, update, and delete operations.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/porcupine-md/jonggrang/scaffold-api
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.

Any agent
npx skills add porcupine-md/jonggrang --skill scaffold-api
Clone the repo
git clone --depth 1 https://github.com/porcupine-md/jonggrang

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 scaffold-api

README.md
[![agentmods](https://agentmods.dev/badge/skills/porcupine-md/jonggrang/scaffold-api.svg)](https://agentmods.dev/skills/porcupine-md/jonggrang/scaffold-api)
Your own site
<a href="https://agentmods.dev/skills/porcupine-md/jonggrang/scaffold-api"><img src="https://agentmods.dev/badge/skills/porcupine-md/jonggrang/scaffold-api.svg" alt="Measured on agentmods" height="20"></a>
Per session 16 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 716 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00016 $0.00716
Opus 5 $0.00008 $0.00358
Sonnet 5 $0.00003 $0.00143
Haiku 4.5 $0.00002 $0.00072

Measured 8d ago against content hash be32bfa307a1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

scaffold-api 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 8d 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.

skills/core/scaffold-api/SKILL.md · 94 lines

How it starts

The opening of the file, as written. The whole thing — 94 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Context

Project {{project_name}} uses stack {{stack}}. You will create an API endpoint for the resource "{{input.name}}".

Read AGENTS.md for conventions that apply to this project. Read existing route files to understand the patterns used.

Instructions

  1. Analyze existing patterns

    • Read existing route files in the project
    • Identify patterns: router setup, middleware usage, error handling, response format
    • Follow conventions defined in AGENTS.md
  2. Create route file

    • Path: according to project convention (usually src/routes/{{input.name}}.ts)
    • Implement {{input.method}} endpoints
    • If CRUD: GET (list), GET/:id (detail), POST (create), PUT/:id (update), DELETE/:id (delete)
  3. Create validation schema

    • Path: according to convention (e.g. src/validators/{{input.name}}.ts)
    • Use the validation library already used in the project (Zod, Joi, etc.)
    • Validate all input fields
  4. Create service/controller (if the project uses this pattern)

    • Business logic separate from route handler
    • Database operations via existing ORM/query builder
  5. Register route

    • Add to router registry / main app file
    • Ensure path and middleware are correct
  6. Create tests

    • Path: according to convention (e.g. tests/{{input.name}}.test.ts)
    • Test cases:
      • Happy path for each endpoint
      • Validation errors (invalid input)
      • Not found (for endpoints with :id)
      • Auth/permission errors (if auth middleware exists)

Script

#!/bin/bash
# Detect project structure
if [ -d "src/routes" ]; then
  echo "Route directory: src/routes/"
elif [ -d "src/api" ]; then
  echo "Route directory: src/api/"
elif [ -d "routes" ]; then
  echo "Route directory: routes/"
fi

# Detect validation library
if grep -q "zod" package.json 2>/dev/null; then
  echo "Validation: Zod"
elif grep -q "joi" package.json 2>/dev/null; then
  echo "Validation: Joi"
elif grep -q "class-validator" package.json 2>/dev/null; then
  echo "Validation: class-validator"
fi

Read the full file on GitHub · 94 lines

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. 8d ago First seen · 94 lines · 16 tokens per session scan A be32bfa307a1

Subscribe to this mod's changes

scaffold-api is a skill published in the GitHub repository porcupine-md/jonggrang (11 stars, last pushed 12d ago), licensed MIT. It adds 16 tokens to every session and 716 once invoked, about $0.0001 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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