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contract-verification

contract-verification is a skill for OpenCode from cruzs85/opencode-multiagente-local-37-iterations. It costs 61 tokens per session (233 once invoked), scanned A, original, MIT.

A verification step for checking that files which work together use the same method names, properties, interfaces, and function signatures.

In plain words
What is it for?
Use it before writing a component that uses a service or a service that implements an interface, by reading the existing source and copying its exact public names.
Why use it?
It prevents integration errors such as calling a method that does not exist or using a property with the wrong name.

Skill for OpenCode

Written for OpenCode: installed under .opencode/.

not rated 5repo 3mo ago A scan 61 tokens original MIT

Good fit Use it before writing a component that uses a service or a service that implements an interface, by reading the existing source and copying its exact public names.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/cruzs85/opencode-multiagente-local-37-iterations/contract-verification
View source ↗ cruzs85/opencode-multiagente-local-37-iterations
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 cruzs85/opencode-multiagente-local-37-iterations --skill contract-verification
Clone the repo
git clone --depth 1 https://github.com/cruzs85/opencode-multiagente-local-37-iterations

Made for: OpenCode.

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 contract-verification

README.md
[![agentmods](https://agentmods.dev/badge/skills/cruzs85/opencode-multiagente-local-37-iterations/contract-verification/github.svg)](https://agentmods.dev/skills/cruzs85/opencode-multiagente-local-37-iterations/contract-verification)
Your own site
<a href="https://agentmods.dev/skills/cruzs85/opencode-multiagente-local-37-iterations/contract-verification"><img src="https://agentmods.dev/badge/skills/cruzs85/opencode-multiagente-local-37-iterations/contract-verification/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 contract-verification

Your own site · 80×15
<a href="https://agentmods.dev/skills/cruzs85/opencode-multiagente-local-37-iterations/contract-verification"><img src="https://agentmods.dev/badge/skills/cruzs85/opencode-multiagente-local-37-iterations/contract-verification.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 233 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 $0.00061 $0.00233
Opus 5.5 $0.00024 $0.00093
Sonnet 5.5 $0.00012 $0.00047
Haiku 4.5 $0.00006 $0.00023

Measured 2mo ago against content hash 97b9fb8b3dcd, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

contract-verification 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.

configuraciones/configuracion-10(solo-dos-modelos)/.opencode/skills/contract-verification/SKILL.md · 21 lines

What it actually says

Propósito

Prevenir errores de integración entre archivos: nombre de método incorrecto, firma de función diferente, propiedad que no existe.

Protocolo obligatorio

Antes de escribir cualquier archivo que CONSUMA otro (componente que usa servicio, servicio que implementa interfaz):

  1. Lee el archivo que vas a consumir
  2. Anota los nombres EXACTOS de: métodos públicos, propiedades públicas, tipos exportados
  3. Usa esos nombres exactos en el archivo que vas a escribir
  4. Nunca asumas un nombre — siempre verifica leyendo el archivo fuente

Errores que previene

  • Previene llamar a updateHighScore() cuando el método se llama updateIfHigher()
  • Previene usar una propiedad que no existe en la interfaz
  • Previene importar un tipo con nombre incorrecto
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. 2mo ago First seen · 21 lines · 61 tokens per session scan A 97b9fb8b3dcd

Subscribe to this mod's changes

contract-verification is a skill published in the GitHub repository cruzs85/opencode-multiagente-local-37-iterations (5 stars, last pushed 3mo ago), licensed MIT. It adds 61 tokens to every session and 233 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 2026-08-31.

Code review
Related

contract-verification compared with skills from other repositories

contract-verification next to 6 skills from other repositories
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