api-spec-to-service

api-spec-to-service is a skill for Claude Code from thapaliyabikendra/ai-artifacts. It costs 77 tokens per session (6,250 once invoked), scanned A, original, Apache-2.0.

A skill that turns a Markdown or OpenAPI specification into ABP application services, data-transfer objects, interfaces, and API release documentation. ABP is a framework for building .NET applications.

In plain words
What is it for?
Use it to implement documented API endpoints in an existing ABP project and match its response, validation, error-handling, authorisation, and folder conventions.
Why use it?
It removes repetitive API scaffolding work while adapting the generated code to patterns already used in the project.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is # ./src/Acme.BookStore.Application.Contracts/Acme.BookStore.Application.Contracts.csproj.

Good fit Use it to implement documented API endpoints in an existing ABP project and match its response, validation, error-handling, authorisation, and folder conventions.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/thapaliyabikendra/ai-artifacts
agentmods
npx agentmods add skills/thapaliyabikendra/ai-artifacts/api-spec-to-service

Made for: Claude Code.

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 api-spec-to-service

README.md
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Your own site
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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 api-spec-to-service

Your own site · 80×15
<a href="https://agentmods.dev/skills/thapaliyabikendra/ai-artifacts/api-spec-to-service"><img src="https://agentmods.dev/badge/skills/thapaliyabikendra/ai-artifacts/api-spec-to-service.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 77 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,250 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00077 $0.06250
Opus 5 $0.00039 $0.03125
Sonnet 5 $0.00015 $0.01250
Haiku 4.5 $0.00008 $0.00625

Measured 11d ago against content hash 3f1e8d34f888, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

api-spec-to-service scanned grade A with 1 finding 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 11d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- [ ] Test all endpoints with API client (Postman/curl)
.claude/skills/api-spec-to-service/SKILL.md · 1,035 lines

How it starts

The opening of the file, as written. The whole thing — 1,035 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are an adaptive API specification parser and ABP code generator. Your goal is to automatically detect patterns from the target ABP project and generate services that perfectly match existing code conventions.


Philosophy: Pattern Auto-Detection

Key Principle: Never assume patterns. Always detect them from the existing codebase.

Every ABP project is different:

  • Some use ResponseDto<T> wrappers, others return plain DTOs
  • Some have custom error handling helpers (this.BadRequest()), others throw exceptions
  • Some use IUnitOfWorkManager, others use [UnitOfWork] attribute
  • Some follow specific folder structures, others don't

This skill adapts to YOUR project's patterns.


Step 1 — Read API Specification

Ask user for the specification:

ask_user_input_v0({
  "questions": [
    {
      "question": "Where is your API specification?",
      "type": "single_select",
      "options": [
        "Markdown file (.md) with endpoint documentation",
        "Swagger/OpenAPI file (.json or .yaml)",
        "I'll provide the path directly"
      ]
    }
  ]
})

Read the spec:

# User provides path
view("/path/to/api-spec.md")
# OR
view("/path/to/swagger.json")

Step 2 — Locate ABP Project and Analyze Structure

2.1 Find Application Layer Projects

# Find all ABP projects
find . -name "*.Application.csproj" -o -name "*.Application.Contracts.csproj" | head -10

# Output example:
# ./src/Acme.BookStore.Application.Contracts/Acme.BookStore.Application.Contracts.csproj
# ./src/Acme.BookStore.Application/Acme.BookStore.Application.csproj

Extract project info:

# Parse project name from .csproj path
# ./src/Acme.BookStore.Application.Contracts/...
# → Project: Acme.BookStore
# → Contracts: Acme.BookStore.Application.Contracts
# → Application: Acme.BookStore.Application

2.2 Find Existing AppServices (Pattern Source)

# Find all existing AppServices (exclude tests)
find . -name "*AppService.cs" -path "*/Application/*" ! -path "*/Tests/*" | head -5

# Read the FIRST ONE found to learn patterns
view("./src/Acme.BookStore.Application/Books/BookAppService.cs")

Read the full file on GitHub · 1,035 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. 11d ago First seen · 1,035 lines · 77 tokens per session scan A 3f1e8d34f888

Subscribe to this mod's changes

api-spec-to-service is a skill published in the GitHub repository thapaliyabikendra/ai-artifacts (24 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 77 tokens to every session and 6,250 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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