external-research

external-research is a skill for Claude Code, Codex from darrenhinde/OpenAgentsControl. It costs 24 tokens per session (812 once invoked), scanned A, original, MIT.

A documentation-fetching tool for external libraries and software packages. It retrieves and caches current guidance for a specific package and topic so code can follow the library's present-day usage.

In plain words
What is it for?
Use it before writing code that depends on libraries such as Drizzle, React, Express, or Zod. It helps look up areas such as database schemas, hooks, middleware, and validation.
Why use it?
It reduces the risk of relying on outdated training information or old API examples. Cached documentation can be reused while it is still fresh and refreshed when it becomes stale.

Skill for Claude CodeCodex

Part of the oac plugin — 12 skills, 6 commands, 7 agents, 1 hook shipped together

About the project

OpenAgents Control is a framework that adds plan-first, approval-based coding workflows to OpenCode, an AI coding framework. Developers and teams use it to make agents follow shared coding patterns, work across several programming languages, and validate changes through testing and review. The catalogue includes its agents, skills, commands, plugin, and hook.

darrenhinde/OpenAgentsControl · 4,820 stars · on GitHub

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.

agentmods
npx agentmods add skills/darrenhinde/openagentscontrol/external-research
Any agent
npx skills add darrenhinde/OpenAgentsControl --skill external-research
Clone the repo
git clone --depth 1 https://github.com/darrenhinde/OpenAgentsControl

Made for: Claude Code, Codex.

Or install oac, the plugin that ships this one along with the rest of its 12 skills, 6 commands, 7 agents, 1 hook.

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 external-research

README.md
[![agentmods](https://agentmods.dev/badge/skills/darrenhinde/openagentscontrol/external-research.svg)](https://agentmods.dev/skills/darrenhinde/openagentscontrol/external-research)
Your own site
<a href="https://agentmods.dev/skills/darrenhinde/openagentscontrol/external-research"><img src="https://agentmods.dev/badge/skills/darrenhinde/openagentscontrol/external-research.svg" alt="Measured on agentmods" height="20"></a>
Per session 24 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 812 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00024 $0.00812
Opus 5 $0.00012 $0.00406
Sonnet 5 $0.00005 $0.00162
Haiku 4.5 $0.00002 $0.00081

Measured 5d ago against content hash 23926ffcc7ce, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

external-research 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 5d 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/claude-code/skills/external-research/SKILL.md · 149 lines

How it starts

The opening of the file, as written. The whole thing — 149 lines — stays where its author put it; the contents beside it link to each section on GitHub.

External Scout

Overview

Fetch and cache current documentation for external libraries and frameworks. Training data is outdated—this skill ensures you use current, correct API patterns.

Announce at start: "I'm using the external-scout skill to fetch current docs for [package]."

The Process

Step 1: Invoke External-Scout

Request documentation with package and topic:

/external-scout <package> <topic>

Examples:

/external-scout drizzle schemas
/external-scout react hooks
/external-scout express middleware
/external-scout zod validation

Step 2: Check Response

External-scout returns JSON with cached file paths:

{
  "status": "success",
  "package": "drizzle",
  "topic": "schemas",
  "cached": true,
  "files": [
    ".tmp/external-context/drizzle/schemas.md"
  ],
  "metadata": {
    "cachedAt": "2026-02-16T10:30:00Z",
    "source": "context7",
    "age": "fresh"
  }
}

Cache status:

  • "fresh" — < 7 days old (use cached)
  • "stale" — > 7 days old (re-fetches automatically)

Step 3: Load Cached Documentation

Read the returned file:

Read: .tmp/external-context/drizzle/schemas.md

This file contains current API patterns, examples, and best practices.

Step 4: Apply to Implementation

Use loaded documentation to:

  • Verify API signatures are correct
  • Follow current patterns (not training data)
  • Check for deprecations
  • Use new features introduced since training

Step 5: Implement with Confidence

Now that you have current docs, implement following verified patterns.

Example: Using Drizzle ORM

1. Invoke: /external-scout drizzle schemas

2. Response:
   {
     "status": "success",
     "files": [".tmp/external-context/drizzle/schemas.md"]
   }

3. Load: Read .tmp/external-context/drizzle/schemas.md

4. Review: Current API for defining tables and relations

5. Implement: Use current patterns from loaded docs

Cache Location

.tmp/external-context/
├── drizzle/
│   ├── .metadata.json
│   ├── schemas.md
│   └── queries.md
├── react/
│   ├── .metadata.json
│   └── hooks.md
└── express/
    ├── .metadata.json
    └── middleware.md

Read the full file on GitHub · 149 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. 5d ago First seen · 149 lines · 24 tokens per session scan A 23926ffcc7ce

Subscribe to this mod's changes

external-research is a skill published in the GitHub repository darrenhinde/OpenAgentsControl (4,820 stars, last pushed 2d ago), licensed MIT. It adds 24 tokens to every session and 812 once invoked, about $0.0001 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 2026-08-30.

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