rest-api-design

rest-api-design is a skill for Claude Code, Codex from bsene/skills. It costs 183 tokens per session (2,390 once invoked), scanned A, original, no licence file.

A reference guide for designing REST APIs, which are web interfaces that let software exchange data through URLs and HTTP requests.

In plain words
What is it for?
Use it when designing or reviewing API endpoints and deciding how they should name resources, handle requests, return errors, and expose lists of data.
Why use it?
It helps resolve common design choices such as URL names, request methods, response codes, pagination, filtering, errors, versions, and security.

Skill for Claude CodeCodex

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

Good fit Use it when designing or reviewing API endpoints and deciding how they should name resources, handle requests, return errors, and expose lists of data.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/bsene/skills/rest-api-design
View source ↗ bsene/skills
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 bsene/skills --skill rest-api-design
Clone the repo
git clone --depth 1 https://github.com/bsene/skills

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 rest-api-design

README.md
[![agentmods](https://agentmods.dev/badge/skills/bsene/skills/rest-api-design/github.svg)](https://agentmods.dev/skills/bsene/skills/rest-api-design)
Your own site
<a href="https://agentmods.dev/skills/bsene/skills/rest-api-design"><img src="https://agentmods.dev/badge/skills/bsene/skills/rest-api-design/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 rest-api-design

Your own site · 80×15
<a href="https://agentmods.dev/skills/bsene/skills/rest-api-design"><img src="https://agentmods.dev/badge/skills/bsene/skills/rest-api-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 183 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,390 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 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 $0.00183 $0.02390
Opus 5.5 $0.00073 $0.00956
Sonnet 5.5 $0.00037 $0.00478
Haiku 4.5 $0.00018 $0.00239

Measured 2d ago against content hash b4f31a477dda, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

rest-api-design 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 2d 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.

4. Document with copy-paste-ready `curl` examples per endpoint
rest-api-design/SKILL.md · 151 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

3 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. 2d ago Changed · +10 lines b4f31a477dda
  2. 9d ago Changed · -144 lines 8242f8a5865d
  3. 1mo ago Changed · +16 lines 68e689ed71b7
  4. 1mo ago Changed ecfc6253be1c
  5. 1mo ago First seen · 269 lines · 183 tokens per session scan A ba51186cbea1

Subscribe to this mod's changes

rest-api-design is a skill published in the GitHub repository bsene/skills (7 stars, last pushed 2d ago), with no licence file. It adds 183 tokens to every session and 2,390 once invoked, about $0.0007 per session on Opus 5.5. 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 2026-08-31.

Related

Other skills, from other repositories

mem0-oss-to-platform

Plan, then execute, a migration of a project from the mem0 open-source / self-hosted SDK (local Memory class) to the mem0 Platform / hosted SDK (MemoryClient). TRIGGER when: the developer wants to move, switch, or migrate mem0 off OSS/self-hosted to the hosted API, e.g. "migrate my mem0 setup to the platform", "switch…

mem0ai/mem0 · 217 tokens

agui-dotnet-protobuf

Use the protobuf wire transport (instead of the default Server-Sent Events) for an AG-UI connection with the AG-UI .NET SDK — a compact binary event stream negotiated via the Accept header. USE FOR: making an AGUIChatClient prefer protobuf by wiring an AGUIEventStreamHandler with ProtobufEventStreamFormatter (then…

ag-ui-protocol/ag-ui · 162 tokens

azure-mgmt-botservice-dotnet

Azure Resource Manager SDK for Bot Service in .NET. Management plane operations for creating and managing Azure Bot resources, channels (Teams, DirectLine, Slack), and connection settings. Triggers: "Bot Service", "BotResource", "Azure Bot", "DirectLine channel", "Teams channel", "bot management .NET", "create bot".

microsoft/skills · 78 tokens

fastapi-router-py

Create FastAPI routers with CRUD operations, authentication dependencies, and proper response models. Use when building REST API endpoints, creating new routes, implementing CRUD operations, or adding authenticated endpoints in FastAPI applications.

microsoft/skills · 46 tokens

migrate-segw-to-rap

Reverse-engineer a SEGW-built OData V2 service (MPC/DPC/MPCEXT/DPCEXT) into a modern RAP V4 service — tables, CDS views (interface + projection), behavior definitions, draft entities, service definition + binding. Use when asked to "migrate this SEGW service to RAP", "convert OData V2 to V4 RAP", "modernize this…

arc-mcp/arc-1 · 106 tokens

api-design

Use when settling the contract of an API you expose, before implementation: resources/URLs, REST vs GraphQL, versioning, one RFC 9457 error envelope, pagination, idempotency — emitted as OpenAPI 3.1. NOT implementing the endpoints (that is fastapi/nestjs/go/nodejs), NOT auth hardening (that is secure-coding), NOT…

ericrisco/rsc-harness · 105 tokens