A set of practices for building and running backend software, including web APIs and services that work behind an application’s user interface. It covers areas such as logging, monitoring, API design, and service structure.

Use it as general guidance when designing APIs, structuring services, or adding logging and monitoring to backend systems.

It helps developers make consistent decisions about how backend code is organized and observed when the description alone does not provide a more specific task.

backend — Plugin by xobotyi

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 xobotyi/cc-foundry

agentmods

npx agentmods add plugins/xobotyi/cc-foundry/backend

Clone the repo

git clone --depth 1 https://github.com/xobotyi/cc-foundry

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

backend 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 2d 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/backend/.claude-plugin/plugin.json · 21 lines

What it actually says

{
  "name": "backend",
  "version": "1.1.5",
  "description": "Backend platform discipline: observability, API design, and service architecture practices",
  "author": {
    "name": "xobotyi",
    "email": "[email protected]",
    "url": "https://github.com/xobotyi"
  },
  "homepage": "https://github.com/xobotyi/cc-foundry/tree/master/plugins/backend",
  "repository": "https://github.com/xobotyi/cc-foundry",
  "license": "MIT",
  "keywords": [
    "backend",
    "observability",
    "logging",
    "api",
    "services"
  ]
}

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.

2d ago First seen · 21 lines scan A 5da430ef2e6d

Subscribe to this mod's changes

backend is a plugin published in the GitHub repository xobotyi/cc-foundry (20 stars, last pushed 2d ago), 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.

Backend and APIs Planning

backend

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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