An API testing and invocation add-on for HTTP services and finite WebSocket connections. HTTP is the standard request-and-response system used by most web APIs; WebSockets keep a connection open for ongoing messages.

Use it to test OpenAPI or AsyncAPI services, check API contracts, and invoke approved HTTP or finite WebSocket operations.

It helps agents call and test these APIs with repeatable actions and specifically granted capabilities.

kahea — Plugin by copyleftdev

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.

Claude Code

/plugin marketplace add copyleftdev/kahea

agentmods

npx agentmods add plugins/copyleftdev/kahea/marketplace

Clone the repo

git clone --depth 1 https://github.com/copyleftdev/kahea

Made for: Claude Code.

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. Scan, not verified.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

kahea 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 yesterday.

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.

.claude-plugin/marketplace.json · 31 lines

What it actually says

{
  "$schema": "https://json.schemastore.org/claude-code-marketplace.json",
  "name": "kahea",
  "owner": {
    "name": "copyleftdev",
    "url": "https://github.com/copyleftdev"
  },
  "description": "Agent-first HTTP and finite WebSocket testing with deterministic invocation.",
  "plugins": [
    {
      "name": "kahea",
      "source": "./plugins/kahea",
      "description": "Seal, test, and invoke HTTP and finite WebSocket APIs with exact capability grants.",
      "version": "0.3.1",
      "author": {
        "name": "copyleftdev",
        "url": "https://github.com/copyleftdev"
      },
      "category": "development",
      "tags": [
        "openapi",
        "asyncapi",
        "websocket",
        "api-testing",
        "mcp",
        "ai-agents"
      ]
    }
  ]
}

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.

yesterday First seen · 31 lines scan A 0f72583434ad

Subscribe to this mod's changes

kahea is a plugin published in the GitHub repository copyleftdev/kahea (2 stars, last pushed 4d ago), licensed Apache-2.0. 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 2026-08-31.

Backend and APIs Security Testing ai-agents api-fuzzing api-security api-testing arazzo cli

kahea

Getting it into your agent

Grade A, and why

Nothing flagged

What it actually says

What this file has done since we first saw it

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