What is using-triadjs?

An overview skill for TriadJS, a TypeScript framework that uses one router definition to produce validation, types, OpenAPI and AsyncAPI documentation, Gherkin scenarios, behavior-driven tests, and Drizzle database schemas.

Starting or organizing a TriadJS backend, designing schemas, declaring HTTP endpoints or WebSocket channels, writing BDD scenarios, generating documentation, and connecting definitions to a database.

It helps choose the right TriadJS workflow and keeps related outputs based on the same definition. Gherkin is a plain-language format for describing software behavior, while BDD means testing behavior from those descriptions.

using-triadjs — Skill for Claude Code by justhamade/triadjs

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 justhamade/triadjs --skill using-triadjs

Clone the repo

git clone --depth 1 https://github.com/justhamade/triadjs

Made for: Claude Code.

Or install triadjs, the plugin that ships this one along with the rest of its 10 skills, 8 commands.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/justhamade/triadjs/using-triadjs/github.svg)](https://agentmods.dev/skills/justhamade/triadjs/using-triadjs)

Your own site

<a href="https://agentmods.dev/skills/justhamade/triadjs/using-triadjs"><img src="https://agentmods.dev/badge/skills/justhamade/triadjs/using-triadjs/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/justhamade/triadjs/using-triadjs"><img src="https://agentmods.dev/badge/skills/justhamade/triadjs/using-triadjs.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 85 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,996 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 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.

Model	Per session	Once invoked
Fable 5.1	$0.00085	$0.01996
Opus 5.5	$0.00034	$0.00798
Sonnet 5.5	$0.00017	$0.00399
Haiku 4.5	$0.00009	$0.00200

Measured 2mo ago against content hash 70ce68c9b804, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

using-triadjs 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.

plugin/skills/using-triadjs/SKILL.md · 142 lines

How it starts

The opening of the file, as written. The whole thing — 142 lines — stays where its author put it; the contents beside it link to each section on GitHub.

TriadJS

TriadJS is a TypeScript-first API framework where one declarative definition produces runtime validation, static types, OpenAPI 3.1, AsyncAPI 3.0, Gherkin .feature files, executable BDD tests, and Drizzle database schemas. Every downstream artifact is a deterministic projection of the router.

                +-------------------+
                |  Triad Router     |
                |  (source of       |
                |   truth)          |
                +---------+---------+
                          |
   +---------+------------+------------+-----------+
   |         |            |            |           |
   v         v            v            v           v
OpenAPI  AsyncAPI     Gherkin      BDD tests    Drizzle
 3.1      3.0        features     (in-proc)     tables

When to use each sub-skill

Task	Skill
Design schemas (`t.model`, `t.value`, DDD entities/value objects)	`triad-schema`
Declare HTTP endpoints, handlers, `beforeHandler` auth hooks, request/response shapes	`triad-endpoint`
Declare WebSocket channels, per-connection state, broadcast/send typing	`triad-channel`
Write BDD `scenario().given().when().then()` tests and learn the assertion phrase table	`triad-behaviors`
Wire up a test runner (`test-setup.ts`, fixtures, `scenario.auto()`, per-scenario DB isolation)	`triad-testing`
Mount the router on Fastify, Express, or Hono	`triad-adapters`
Generate Drizzle tables from `.storage()` hints	`triad-drizzle`
Reference the `triad` CLI (`test`, `docs`, `gherkin`, `db generate`, `validate`, `fuzz`)	`triad-cli`
Register services on `ServiceContainer` and inject repositories/clients	`triad-services`

These sub-skills each load progressively — read only the ones needed for the task at hand.

Slash commands

The plugin ships these /triadjs:* commands for common workflows:

/triadjs:new — scaffold a new TriadJS project from scratch (package.json, router, server, test config)
/triadjs:model — add a new t.model or value object to an existing project
/triadjs:endpoint — add a new HTTP endpoint with behaviors
/triadjs:channel — add a new WebSocket channel
/triadjs:scenario — add BDD behavior scenarios to an existing endpoint
/triadjs:test — run triad test and explain any failures
/triadjs:docs — regenerate OpenAPI/AsyncAPI via triad docs
/triadjs:validate — run triad validate --strict and fix any issues

Read the full file on GitHub · 142 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.

2mo ago First seen · 142 lines · 85 tokens per session scan A 70ce68c9b804

Subscribe to this mod's changes

using-triadjs is a skill published in the GitHub repository justhamade/triadjs (24 stars, last pushed 6mo ago), licensed MIT. It adds 85 tokens to every session and 1,996 once invoked, about $0.0003 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.

Backend and APIs Languages TypeScript

using-triadjs next to 6 skills from other repositories
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