agentmods.dev

plone-backend-developer

plone-backend-developer is a skill for Claude Code, Codex from eea/eea.agent.skills. It costs 49 tokens per session (865 once invoked), scanned A, original, MIT.

A specialist guide for developing Plone 6 server-side software in Python. Plone is a content-management system, and this guide covers its backend code, configuration, debugging, and tests in EEA projects.

In plain words
What is it for?
Use it to inspect project instructions and build files, locate an add-on, reproduce backend failures, change Python or configuration, restart Plone, and run focused tests.
Why use it?
It helps avoid applying the wrong commands or project layout to a Plone codebase. It provides a repeatable path from finding the failing request to making and checking a targeted fix.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions AGENTS.md.

not rated 5repo 20d ago A scan 49 tokens original MIT

Good fit Use it to inspect project instructions and build files, locate an add-on, reproduce backend failures, change Python or configuration, restart Plone, and run focused tests.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/eea/eea.agent.skills/plone-backend-developer
View source ↗ eea/eea.agent.skills
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 eea/eea.agent.skills --skill plone-backend-developer
Clone the repo
git clone --depth 1 https://github.com/eea/eea.agent.skills

Made for: Claude Code, Codex.

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 plone-backend-developer

README.md
[![agentmods](https://agentmods.dev/badge/skills/eea/eea.agent.skills/plone-backend-developer/github.svg)](https://agentmods.dev/skills/eea/eea.agent.skills/plone-backend-developer)
Your own site
<a href="https://agentmods.dev/skills/eea/eea.agent.skills/plone-backend-developer"><img src="https://agentmods.dev/badge/skills/eea/eea.agent.skills/plone-backend-developer/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 plone-backend-developer

Your own site · 80×15
<a href="https://agentmods.dev/skills/eea/eea.agent.skills/plone-backend-developer"><img src="https://agentmods.dev/badge/skills/eea/eea.agent.skills/plone-backend-developer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 49 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 865 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 $0.00049 $0.00865
Opus 5.5 $0.00020 $0.00346
Sonnet 5.5 $0.00010 $0.00173
Haiku 4.5 $0.00005 $0.00086

Measured 19d ago against content hash 56c3edc6d28b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

plone-backend-developer 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 19d 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.

skills/plone-backend-developer/SKILL.md · 107 lines

How it starts

The opening of the file, as written. The whole thing — 107 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Plone Backend Developer

Overview

Implement and debug Plone 6 backend changes in EEA projects. EEA backends are built and started in different ways depending on the project generation, so discover the project's build system before running or editing anything.

Discover the project first

  • Read the project AGENTS.md for project-specific commands.
  • Read the Makefile (make help) and the build configuration (sources.ini, requirements.txt, constraints.txt, or pyproject.toml).
  • Identify how the dev environment is created and how the app is started.
  • Check whether a develop/ directory exists; if not, the backend is likely container-based.

See references/plone-project-layouts.md for the known EEA layouts.

Core workflow

  1. Confirm the failing endpoint, request path, and expected behavior.
  2. Locate the relevant package in the project's sources list or installed add-ons.
  3. Reproduce locally; add minimal logging only when needed.
  4. Apply the fix in the add-on or configuration.
  5. Restart Plone after Python changes; hot reload is not available.
  6. Validate with a targeted zope-testrunner invocation or manual verification.

Common tasks

  • Add or update a backend add-on and refresh the dev sources with the project's develop target.
  • Adjust Plone configuration and verify the app starts.
  • Investigate errors from the WSGI process and trace back to the relevant add-on module.
  • Work with REST API behavior used by the Volto frontend; confirm the exact endpoint contract before changing serializers.

Good practices

  • Restart Plone after Python changes; use the reload endpoint (@@reload) only for quick iteration, then restart to confirm.
  • Keep changes small and add targeted tests for regressions.
  • Prefer configuration and existing add-ons over fork-and-patch.
  • Do not edit generated build artifacts; edit sources and re-run bootstrap.

Repo context

Use references/plone-project-layouts.md for the known EEA backend layouts, commands, and how to discover them.

Read the full file on GitHub · 107 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 19d ago First seen · 107 lines · 49 tokens per session scan A 56c3edc6d28b

Subscribe to this mod's changes

plone-backend-developer is a skill published in the GitHub repository eea/eea.agent.skills (5 stars, last pushed 20d ago), licensed MIT. It adds 49 tokens to every session and 865 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-09-28.

Backend and APIsLanguagesPython
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