procedure

procedure is a skill for Claude Code from finom/vovk. It costs 354 tokens per session (6,172 once invoked), scanned A, original, MIT.

A skill for writing typed, validated server-side procedures in Vovk.ts. A procedure is a reusable unit of server logic that can optionally be exposed as an HTTP endpoint, which is a web address that accepts requests.

In plain words
What is it for?
Use it for server-loaded pages, APIs, form submissions, controllers, file uploads, and other code that produces or consumes data on a server.
Why use it?
It keeps data handling, input validation, errors, responses, and optional HTTP access in one defined pattern.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the vovk plugin — 15 skills shipped together

Good fit Use it for server-loaded pages, APIs, form submissions, controllers, file uploads, and other code that produces or consumes data on a server.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/finom/vovk/procedure
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 finom/vovk --skill procedure
Clone the repo
git clone --depth 1 https://github.com/finom/vovk

Made for: Claude Code.

Or install vovk, the plugin that ships this one along with the rest of its 15 skills.

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 procedure

README.md
[![agentmods](https://agentmods.dev/badge/skills/finom/vovk/procedure/github.svg)](https://agentmods.dev/skills/finom/vovk/procedure)
Your own site
<a href="https://agentmods.dev/skills/finom/vovk/procedure"><img src="https://agentmods.dev/badge/skills/finom/vovk/procedure/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 procedure

Your own site · 80×15
<a href="https://agentmods.dev/skills/finom/vovk/procedure"><img src="https://agentmods.dev/badge/skills/finom/vovk/procedure.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 354 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,172 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 2 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Tool Misuse · line 201
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
  • medium MCP Rug Pull · line 100
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
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 $0.00354 $0.06172
Opus 5.5 $0.00142 $0.02469
Sonnet 5.5 $0.00071 $0.01234
Haiku 4.5 $0.00035 $0.00617

Measured yesterday against content hash 875008366caa, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

procedure 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 yesterday.

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.

These URLs = plain HTTP — `curl`, `httpx`, `fetch`, any client works. Typed RPC clients (generated `@/client`, `vovk-python`, `vovk-rust`) wrap same endpoints with validation + inferred types; conveniences, not only acce
skills/procedure/SKILL.md · 480 lines

How it starts

The opening of the file, as written. The whole thing — 480 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Vovk.ts procedures

Procedure = typed, validated server-logic unit. Built with procedure({ ... }).handle(...). Atom of every Vovk app.

Mental model:

  • Procedure valuable alone. Typed server function — call via .fn() from RSC, server actions, SSR/SSG/PPR, any server code. No HTTP.
  • HTTP decorator (@get, @post, @put, @patch, @del) OPTIONAL. Add only when exposing procedure as HTTP endpoint (also makes callable via generated RPC client from browser).

Opposite of most frameworks: procedures first, HTTP opt-in.

Procedure, minimally

import { procedure } from 'vovk';
import { z } from 'zod';

class UserController {
  static getUser = procedure({
    params: z.object({ id: z.string().uuid() }),
    output: z.object({ id: z.string(), email: z.email() }),
  }).handle(async (_req, { id }) => {
    return UserService.byId(id); // plain call
  });
}

What you have:

  • Typed, validated procedure.
  • Callable from ANY server code via UserController.getUser.fn({ params: { id: '…' } }).
  • Not HTTP endpoint. Not in generated RPC client.

Expose over HTTP — add HTTP decorator:

import { z } from 'zod';
import { get, prefix, procedure } from 'vovk';
import UserService from './user-service';

@prefix('users')
export default class UserController {
  @get('{id}')
  static getUser = procedure({
    params: z.object({ id: z.string().uuid() }),
    output: z.object({ id: z.string(), email: z.email() }),
  }).handle(async (_req, { id }) => {
    return UserService.byId(id);
  });
}

Now also GET /api/users/{id} and available as UserRPC.getUser(...) on client.

Deciding: decorator or no?

When user says...

User intent What to build
"Build users page" / "load X on server" / "dashboard showing Y" Procedure, no decorator. Call via .fn() from server component.
"Server action for form submit" Procedure, no decorator. Call via .fn() inside 'use server' function.
"Add /api/users endpoint" / "expose X as API" / "browser needs to call it" Procedure + HTTP decorator.
"Users page AND also API" Procedure + HTTP decorator. Call .fn() from server component; RPC client covers browser path.
"Internal helper used only from other procedures" Plain service function, not procedure. Use procedure only when you want validation/types as contract.

Read the full file on GitHub · 480 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. yesterday Changed 875008366caa
  2. 5d ago Changed · -24 lines · +18 tokens per session 10c01d95ce9a
  3. 10d ago Changed 444a4adfb136
  4. 11d ago Changed · +2 lines 0cae2729b9e0
  5. 12d ago Changed · -25 lines 9a848af6b7e0
  6. 17d ago Changed · -6 tokens per session a38a2da3b4a3
  7. 1mo ago First seen · 527 lines · 342 tokens per session scan A 1de2ffaf0e17

Subscribe to this mod's changes

procedure is a skill published in the GitHub repository finom/vovk (53 stars, last pushed 2d ago), licensed MIT. It adds 354 tokens to every session and 6,172 once invoked, about $0.0014 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 2026-08-30.

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