layerkit-research-vendor

layerkit-research-vendor is a skill for Claude Code, Codex from hariharapanigrahy/layerkit. It costs 30 tokens per session (838 once invoked), scanned A, original, MIT.

An evidence-first workflow for researching an external service’s API and keeping an integration contract up to date. An API contract is the documented agreement about requests, responses, fields, and authentication.

In plain words
What is it for?
Use it to read vendor documentation or OpenAPI files, update structured contract records, compare API changes with mappings, and identify source or test changes that still need human attention.
Why use it?
It compares official documentation with the existing integration and records uncertainty instead of inventing missing fields or assuming that changed names mean the same thing.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to read vendor documentation or OpenAPI files, update structured contract records, compare API changes with mappings, and identify source or test changes that still need human attention.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/hariharapanigrahy/layerkit/layerkit-research-vendor
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 hariharapanigrahy/layerkit --skill layerkit-research-vendor
Clone the repo
git clone --depth 1 https://github.com/hariharapanigrahy/layerkit

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 layerkit-research-vendor

README.md
[![agentmods](https://agentmods.dev/badge/skills/hariharapanigrahy/layerkit/layerkit-research-vendor/github.svg)](https://agentmods.dev/skills/hariharapanigrahy/layerkit/layerkit-research-vendor)
Your own site
<a href="https://agentmods.dev/skills/hariharapanigrahy/layerkit/layerkit-research-vendor"><img src="https://agentmods.dev/badge/skills/hariharapanigrahy/layerkit/layerkit-research-vendor/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 layerkit-research-vendor

Your own site · 80×15
<a href="https://agentmods.dev/skills/hariharapanigrahy/layerkit/layerkit-research-vendor"><img src="https://agentmods.dev/badge/skills/hariharapanigrahy/layerkit/layerkit-research-vendor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 838 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 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 $0.00030 $0.00838
Opus 5 $0.00015 $0.00419
Sonnet 5 $0.00006 $0.00168
Haiku 4.5 $0.00003 $0.00084

Measured 9d ago against content hash 2009306048f3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

layerkit-research-vendor 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 9d 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.

Read official docs/OpenAPI/curl examples directly as the AI agent. Curate a structured contract/proposal with citations, then use deterministic CLI only to validate explicit proposals and package health. Privacy classifi
skills/layerkit-research-vendor/SKILL.md · 86 lines

How it starts

The opening of the file, as written. The whole thing — 86 lines — stays where its author put it; the contents beside it link to each section on GitHub.

layerkit-research-vendor

You create or update integration knowledge from primary evidence. Core ships empty maps. Never invent.

Contract update (heal) is an agent-led production update path: human supplies OpenAPI/docs → AI agent reads/cites evidence → AI agent updates existing maps/source/tests. Do not route heal through deterministic source editing, code generation, or generated patch plans.

Protocol

A. Contract heal

When the user gives OpenAPI or docs, you are the AI reader. Fetch/read the official evidence, keep citations, and compare it to the existing map/interface/datalayer yourself.

.layerkit/out/contracts/<vendor>/openapi-from-doc.json

The CLI is tooling only: it validates explicit artifacts and package health, but it does not understand arbitrary docs, semantic field meaning, or source edits. If docs are ambiguous after evidence review, preserve uncertainty in notes and leave localized TODOs rather than inventing fields.

If one vendor field was removed and another was added, inspect docs and existing source before deciding it is a rename. Record your decision in the review note:

[
  {
    "fromVendor": "email",
    "toVendor": "email_id",
    "domain": "email",
    "confidence": "high",
    "evidence": ["OpenAPI removed email and added email_id for the same request value"]
  }
]

Edit the real adapter/interface/test files yourself. If the field does not exist in the interface or datalayer, add a localized TODO only in the production change and call it out in review.

B. Supporting evidence work

Read official docs/OpenAPI/curl examples directly as the AI agent. Curate a structured contract/proposal with citations, then use deterministic CLI only to validate explicit proposals and package health. Privacy classification belongs to layerkit-privacy-review.

C. Domain meaning

Domain meaning comes from customer code plus vendor evidence, not from operation names alone. Cite docs, schemas, examples, and source files for every non-obvious mapping.

Read the full file on GitHub · 86 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. 9d ago First seen · 86 lines · 30 tokens per session scan A 2009306048f3

Subscribe to this mod's changes

layerkit-research-vendor is a skill published in the GitHub repository hariharapanigrahy/layerkit (8 stars, last pushed 1mo ago), licensed MIT. It adds 30 tokens to every session and 838 once invoked, about $0.0002 per session on Opus 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.

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