eplan-development

eplan-development is a skill for Claude Code from covagashi/eplan-rag-mcp. It costs 84 tokens per session (1,874 once invoked), scanned A, original, MIT.

A development guide for extending and automating EPLAN Electric P8, an electrical-engineering design program, with C# scripts, API extensions, and remote-control applications.

In plain words
What is it for?
Use it when building EPLAN actions, event handlers, ribbon features, parts or project-data integrations, page and property tools, or external automation with Remote Client.
Why use it?
It helps choose the right way to run code inside or outside EPLAN and explains the access, licensing, and deployment differences between those approaches.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the eplan-development plugin — 1 skill shipped together

Good fit Use it when building EPLAN actions, event handlers, ribbon features, parts or project-data integrations, page and property tools, or external automation with Remote Client.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/covagashi/eplan-rag-mcp/eplan-development
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 covagashi/eplan-rag-mcp --skill eplan-development
Clone the repo
git clone --depth 1 https://github.com/covagashi/eplan-rag-mcp

Made for: Claude Code.

Or install eplan-development, the plugin that ships this one along with the rest of its 1 skill.

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 eplan-development

README.md
[![agentmods](https://agentmods.dev/badge/skills/covagashi/eplan-rag-mcp/eplan-development.svg)](https://agentmods.dev/skills/covagashi/eplan-rag-mcp/eplan-development)
Your own site
<a href="https://agentmods.dev/skills/covagashi/eplan-rag-mcp/eplan-development"><img src="https://agentmods.dev/badge/skills/covagashi/eplan-rag-mcp/eplan-development.svg" alt="Measured on agentmods" height="20"></a>
Per session 84 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,874 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Data Exfiltration · line 43
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
How audits are shown
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 $0.00084 $0.01874
Opus 5 $0.00042 $0.00937
Sonnet 5 $0.00017 $0.00375
Haiku 4.5 $0.00008 $0.00187

Measured 2d ago against content hash efe710485bb5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

eplan-development scanned grade A with 1 finding 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -X POST https://rag2027.covaga.xyz/search \
claude-skills/eplan-development/skills/eplan-development/SKILL.md · 72 lines

How it starts

The opening of the file, as written. The whole thing — 72 lines — stays where its author put it; the contents beside it link to each section on GitHub.

EPLAN Electric P8 Development

Comprehensive guide for developing with EPLAN Electric P8: scripting (C#), the EPLAN API, and remote automation. Distilled from working production code and curated examples.

The three development models

Model Runs License Use for
Scripting Inside EPLAN (compiled on load, C# subset) None extra Automating actions, UI additions (ribbon), event hooks, file exports
API extension Inside EPLAN (compiled DLL) or offline app API license Deep data access: parts DB, project object model, pages, properties
Remote Client External process (WPF/console) driving a running EPLAN RemoteClient DLLs Orchestration apps, headless build pipelines, Cogineer generation

Note: scripts CAN use some API namespaces (e.g. Eplan.EplApi.MasterData for the parts database) directly from a [Start] method — see references/api-data-access.md.

Reference files — read the one that matches the task

  • references/script-basics.md — Script structure, entry-point attributes ([Start], [DeclareAction], [DeclareEventHandler], [DeclareRegister]), deployment, scripting limitations.
  • references/actions-reference.md — Executing actions with CommandLineInterpreter + ActionCallingContext; catalog of common actions (backup, export PDF, reports, labels, edit, selectionset…) with their parameters.
  • references/core-classes.mdProgress, Decider, PathMap variables, Settings, MultiLangString, ribbon/context menus, QuietModeStep, system messages (BaseException, SysMessagesCollection).
  • references/api-data-access.md — Parts database (MDPartsManagement), reading and writing part properties (AddPart/RemovePart, the MDPropertyValue constructor that doesn't exist, the AmbiguousMatchException every name-based property lookup hits), user-defined properties, multilanguage string parsing, resolving $(MD_DOCUMENTS)-style paths. Also: why using Eplan.EplApi.DataModel;/...HEServices; don't compile in scripts (CS0234) and how to reach that object model anyway.
  • references/e3d-installation-spaces.md — The version-proof runtime-reflection recipe for reaching Eplan.EplApi.DataModel/HEServices from a script (LockingStep, FindType() assembly scanning, EPLAN 2027's ...Netu-suffixed assemblies), applied to creating 3D installation spaces and inserting window macros headlessly.
  • references/remoting.mdEplanRemoteClient: server discovery, dynamic ports, headless launch, version gotchas (2023 vs 2025), executing actions and scripts remotely, Cogineer generation from Excel.
  • references/pitfalls.md — CRITICAL: the command-blocking issue (message loop / monitor thread), using/Dispose discipline, sequential execution model, error-handling rules, and the compile errors that masquerade as timeouts, including which C# each version's script engine actually accepts (#9).
  • references/integration-patterns.md — Connecting EPLAN to the outside: HTTP servers, SignalR real-time messaging, forwarding EPLAN system errors to external services.

Read the full file on GitHub · 72 lines

Files

What ships with it

8 files 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. 2d ago Changed · +1 lines efe710485bb5
  2. 4d ago Changed · +14 lines 8d4c3556d451
  3. 8d ago First seen · 57 lines · 84 tokens per session scan A 49e3dbfd5dde

Subscribe to this mod's changes

eplan-development is a skill published in the GitHub repository covagashi/eplan-rag-mcp (83 stars, last pushed 3d ago), licensed MIT. It adds 84 tokens to every session and 1,874 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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