third-party-services

third-party-services is a skill for Claude Code from catpilotai/catpilot-ai-guardrails. It costs 48 tokens per session (824 once invoked), scanned A, original, MIT.

A safety guide for adding outside services, plugins, connectors, extensions, or AI providers to a project. It asks whether the service is approved and what information it would receive.

In plain words
What is it for?
Use it before installing an integration or signing up for a new service, particularly when real company data would be sent to it.
Why use it?
Each new service creates another place where company information may be stored or processed, and plugins may be able to read the same information as the app.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions Codex; built for cline.

Part of the catpilot-guardrails plugin — 19 skills shipped together

Good fit Use it before installing an integration or signing up for a new service, particularly when real company data would be sent to it.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/catpilotai/catpilot-ai-guardrails/third-party-services
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 catpilotai/catpilot-ai-guardrails --skill third-party-services
Clone the repo
git clone --depth 1 https://github.com/catpilotai/catpilot-ai-guardrails

Made for: Claude Code.

Or install catpilot-guardrails, the plugin that ships this one along with the rest of its 19 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 third-party-services

README.md
[![agentmods](https://agentmods.dev/badge/skills/catpilotai/catpilot-ai-guardrails/third-party-services/github.svg)](https://agentmods.dev/skills/catpilotai/catpilot-ai-guardrails/third-party-services)
Your own site
<a href="https://agentmods.dev/skills/catpilotai/catpilot-ai-guardrails/third-party-services"><img src="https://agentmods.dev/badge/skills/catpilotai/catpilot-ai-guardrails/third-party-services/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 third-party-services

Your own site · 80×15
<a href="https://agentmods.dev/skills/catpilotai/catpilot-ai-guardrails/third-party-services"><img src="https://agentmods.dev/badge/skills/catpilotai/catpilot-ai-guardrails/third-party-services.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 48 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 824 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 $0.00048 $0.00824
Opus 5 $0.00024 $0.00412
Sonnet 5 $0.00010 $0.00165
Haiku 4.5 $0.00005 $0.00082

Measured 4d ago against content hash 9fa5de2f59df, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-22, from the pricing page.

Security

Grade A, and why

third-party-services 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 4d 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.

src/skills/safe-building/third-party-services/SKILL.md · 90 lines

How it starts

The opening of the file, as written. The whole thing — 90 lines — stays where its author put it; the contents beside it link to each section on GitHub.

When this applies

  • The person wants to connect the app to a service the company has not clearly approved: a free API, a plugin, a browser extension, a new AI provider, a marketplace connector, an automation platform.
  • A tool suggests installing something to make a task easier.
  • The person is signing up for a new account "just to try it".

What to ask

  • "Is this service on your company's approved list, or is it new?"
  • If it is new: "What would it receive, and where does that information go?"

What to say

  • One sentence: "Every new service is a new place your company's information lives, and someone has to be responsible for it."
  • On free services: "Free usually means the service keeps or uses what you send it. That may be fine for pretend data and not fine for real data."
  • On plugins and extensions: "A plugin can read everything the app can read. Installing one is like giving someone a key."

Safe alternative

  • Prefer services the company has already approved; the approved option is usually already connected somewhere.
  • Build and test with pretend data while approval is pending, so the work keeps moving.
  • Until the service is approved, leave the connection a marked stub that sends nothing, and say so; wiring the real endpoint and calling it a draft is wiring it.
  • Write the two-sentence request the person can send: what the service is, what it will receive, and why it is needed.
  • Do not suggest workarounds such as personal accounts, personal payment cards, or exporting data to make an unapproved service work.

Company-specific values

Approved services:

{{approved_services}}

Needs review before use:

{{services_needs_review}}

Stop and ask a human if

  • The service would receive customer, employee, payment, or health data.
  • The service needs a payment method, a contract, or company credentials.
  • The person wants to install a plugin, extension, or connector in a tool many people use.
  • The service is a new AI provider or model endpoint.

Read the full file on GitHub · 90 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. 4d ago Changed · +3 lines 9fa5de2f59df
  2. 7d ago First seen · 87 lines · 48 tokens per session scan A fb5767bb30ab

Subscribe to this mod's changes

third-party-services is a skill published in the GitHub repository catpilotai/catpilot-ai-guardrails (2 stars, last pushed today), licensed MIT. It adds 48 tokens to every session and 824 once invoked, about $0.0002 per session on Opus 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 2026-09-14.