resource-spec-initializer

resource-spec-initializer is an agent for Claude Code from voro6yov/spec-driven-development. It costs 43 tokens per session (3,022 once invoked), scanned A, original, Apache-2.0.

A specification setup agent that creates an initial REST API resource file beside a Mermaid domain diagram. Mermaid is a text format for diagrams, and the resource file records the API surfaces and basic resource details.

In plain words
What is it for?
Use it to initialize a REST API specification with resource basics and surface sections from domain, command, query, and operations diagrams.
Why use it?
It removes the manual first step of identifying an aggregate root and grouping service methods by surface. An aggregate root is the main object that controls a related group of domain objects.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the rest-api-spec plugin — 2 skills, 15 agents shipped together

Good fit Use it to initialize a REST API specification with resource basics and surface sections from domain, command, query, and operations diagrams.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/voro6yov/spec-driven-development/resource-spec-initializer
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.

Clone the repo
git clone --depth 1 https://github.com/voro6yov/spec-driven-development

Made for: Claude Code.

Or install rest-api-spec, the plugin that ships this one along with the rest of its 2 skills, 15 agents.

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 resource-spec-initializer

README.md
[![agentmods](https://agentmods.dev/badge/agents/voro6yov/spec-driven-development/resource-spec-initializer/github.svg)](https://agentmods.dev/agents/voro6yov/spec-driven-development/resource-spec-initializer)
Your own site
<a href="https://agentmods.dev/agents/voro6yov/spec-driven-development/resource-spec-initializer"><img src="https://agentmods.dev/badge/agents/voro6yov/spec-driven-development/resource-spec-initializer/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 resource-spec-initializer

Your own site · 80×15
<a href="https://agentmods.dev/agents/voro6yov/spec-driven-development/resource-spec-initializer"><img src="https://agentmods.dev/badge/agents/voro6yov/spec-driven-development/resource-spec-initializer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 43 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,022 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00043 $0.03022
Opus 5.5 $0.00017 $0.01209
Sonnet 5.5 $0.00009 $0.00604
Haiku 4.5 $0.00004 $0.00302

Measured 12d ago against content hash be511190f7d3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

resource-spec-initializer 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 12d 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.

plugins/rest-api-spec/agents/resource-spec-initializer.md · 167 lines

How it starts

The opening of the file, as written. The whole thing — 167 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a REST API resource-spec initializer. Read the Mermaid commands, queries, domain, and any sibling ops class diagrams; detect the single <<Aggregate Root>> class on the domain diagram; partition methods on the commands, queries, and every ops application-service class by surface marker; and create a sibling <dir>/<stem>.rest-api/spec.md initialized with Table 1 (Resource Basics) plus one ## Surface: <name> H2 heading per discovered surface — formatted per the rest-api-spec:resource-spec-template and rest-api-spec:surface-markers pattern docs. Do not ask for confirmation before writing.

Pattern docs (umbrella resolution). Resolve <patterns_dir> as the directory containing the rest-api-spec:patterns umbrella SKILL.md (auto-loaded via this agent's frontmatter; its loaded context reveals its location). A pattern named <name> (any rest-api-spec: prefix stripped) resolves to <patterns_dir>/<name>/index.md. Before proceeding, Read in full each pattern doc this agent uses: <patterns_dir>/resource-spec-template/index.md, <patterns_dir>/surface-markers/index.md. If a referenced pattern path does not exist, abort with Error: pattern '<name>' has no folder under the rest-api-spec:patterns umbrella at <patterns_dir>. — never skip a missing pattern silently.

Ops orchestration services (<dir>/<stem>.ops.<op-name>.md, zero or more per aggregate) expose their public methods as REST action endpoints. This initializer only contributes their surfaces to the surface set (so each gets a ## Surface: heading); the per-surface Table 3o (Ops Endpoints) rows are filled later by endpoint-tables-writer. An aggregate with zero ops diagrams behaves exactly as before this capability existed.

Arguments

  • <domain_diagram> — path to the Mermaid domain class diagram (<dir>/<stem>.md). Sibling diagrams and the output spec file are derived from this path.

Path resolution

Recover <dir> and <stem> from <domain_diagram> (<dir>/<stem>.md) per spec-core:naming-conventions. The agent-specific sibling paths derived from them:

Read the full file on GitHub · 167 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. 12d ago First seen · 167 lines · 43 tokens per session scan A be511190f7d3

Subscribe to this mod's changes

resource-spec-initializer is an agent published in the GitHub repository voro6yov/spec-driven-development (5 stars, last pushed 12d ago), licensed Apache-2.0. It adds 43 tokens to every session and 3,022 once invoked, about $0.0002 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 2026-10-04.

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