agent-inject

agent-inject is a plugin for Claude Code from caozhiyuan/copilot-api. Its token cost is not measured, scanned A, original, MIT.

A plugin that adds copilot-api rules and context when a subagent starts.

In plain words
What is it for?
It is for coding-agent sessions that use copilot-api rules or need context passed to newly started subagents.
Why use it?
It keeps these rules and session details available automatically, so they do not need to be added by hand.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Good fit It is for coding-agent sessions that use copilot-api rules or need context passed to newly started subagents.

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Install in Claude Code
/plugin marketplace add caozhiyuan/copilot-api
/plugin install agent-inject
About the project

caozhiyuan/copilot-api is a local AI gateway that exposes OpenAI Chat Completions, OpenAI Responses, and Anthropic Messages interfaces for multiple providers. It lets clients such as Claude Code, OpenCode, and Codex connect through one endpoint to GitHub Copilot, the built-in Codex provider, and other configured services.

caozhiyuan/copilot-api · 1,083 stars · on GitHub · caozhiyuan.github.io

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.

Clone the repo
git clone --depth 1 https://github.com/caozhiyuan/copilot-api

Made for: Claude Code.

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 agent-inject

README.md
[![agentmods](https://agentmods.dev/badge/plugins/caozhiyuan/copilot-api/agent-inject/github.svg)](https://agentmods.dev/plugins/caozhiyuan/copilot-api/agent-inject)
Your own site
<a href="https://agentmods.dev/plugins/caozhiyuan/copilot-api/agent-inject"><img src="https://agentmods.dev/badge/plugins/caozhiyuan/copilot-api/agent-inject/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 agent-inject

Your own site · 80×15
<a href="https://agentmods.dev/plugins/caozhiyuan/copilot-api/agent-inject"><img src="https://agentmods.dev/badge/plugins/caozhiyuan/copilot-api/agent-inject.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
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.
Security

Grade A, and why

agent-inject 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 1mo 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.

plugin/claude/agent-inject/.claude-plugin/plugin.json · 9 lines

What it actually says

{
  "name": "agent-inject",
  "description": "Inject copilot-api rules and SubagentStart agent context",
  "version": "1.5.1",
  "author": {
    "name": "copilot-api maintainers"
  }
}
Contents

What it installs

The manifest is a name and a version. 3 hooks travel with it, and installing the plugin installs all of them. Each is measured on its own page, and each can be installed alone.

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. 1mo ago First seen · 9 lines scan A 6c5f906ea5b3

Subscribe to this mod's changes

agent-inject is a plugin published in the GitHub repository caozhiyuan/copilot-api (1,083 stars, last pushed today), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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.