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electronic-mcp-server: Skill for Claude Code

.github/skills/power-budget-calculator/SKILL.md

power-budget-calculator is a skill for Claude Code, Codex from wedsamuel1230/electronic-mcp-server. It costs 68 tokens per session (3,093 once invoked), scanned A, a copy of power-budget-calculator, MIT.

A calculator for estimating electricity use and battery runtime in Arduino, ESP32, and RP2040 projects. It accounts for components, operating modes, and how often each component is active.

In plain words
What is it for?
Use it to total the current draw of sensors, displays, motors, and other parts, estimate battery life, compare sleep modes, choose a battery size, and review project power data.
Why use it?
It replaces guesswork when deciding how much current a project needs or how long a battery will last. It also helps reveal where low-power changes could extend runtime.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

This is wedsamuel1230/electronic-mcp-server's own configuration. It tells Claude Code and Codex how to work on electronic-mcp-server itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything electronic-mcp-server configures →

not rated 1repo 10mo ago A scan 68 tokens copy · 92% MIT
View source ↗ wedsamuel1230/electronic-mcp-server
Reuse

Borrowing it

Nothing to install: this file belongs to wedsamuel1230/electronic-mcp-server. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/wedsamuel1230/electronic-mcp-server/main/.github/skills/power-budget-calculator/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/wedsamuel1230/electronic-mcp-server

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 power-budget-calculator

README.md
[![agentmods](https://agentmods.dev/badge/skills/wedsamuel1230/electronic-mcp-server/power-budget-calculator/github.svg)](https://agentmods.dev/skills/wedsamuel1230/electronic-mcp-server/power-budget-calculator)
Your own site
<a href="https://agentmods.dev/skills/wedsamuel1230/electronic-mcp-server/power-budget-calculator"><img src="https://agentmods.dev/badge/skills/wedsamuel1230/electronic-mcp-server/power-budget-calculator/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 power-budget-calculator

Your own site · 80×15
<a href="https://agentmods.dev/skills/wedsamuel1230/electronic-mcp-server/power-budget-calculator"><img src="https://agentmods.dev/badge/skills/wedsamuel1230/electronic-mcp-server/power-budget-calculator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 68 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,093 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 92% copy Near-identical to another mod 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 $0.00068 $0.03093
Opus 5.5 $0.00027 $0.01237
Sonnet 5.5 $0.00014 $0.00619
Haiku 4.5 $0.00007 $0.00309

Measured 2mo ago against content hash 758ffddb2b4b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

power-budget-calculator 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 2mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/calculate_power.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Origin

This is a copy

92% identical to power-budget-calculator — 15 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.github/skills/power-budget-calculator/SKILL.md · 365 lines

How it starts

The opening of the file, as written. The whole thing — 365 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Power Budget Calculator

Estimates power consumption and battery life for embedded projects.

Resources

  • scripts/calculate_power.py - Python calculator with component database, duty cycle support, battery life estimation
  • references/component-database.md - Comprehensive current draw reference from datasheets
  • assets/example-project.json - Sample project configuration

Quick Start

Run the calculator interactively:

uv run scripts/calculate_power.py --interactive

Or calculate for a single component:

uv run scripts/calculate_power.py --component ESP32 --mode deep_sleep --duty 95

Load a project configuration:

uv run scripts/calculate_power.py --json assets/example-project.json --output report.md

List all components in database:

uv run scripts/calculate_power.py --list

When to Use

  • "How long will my battery last?"
  • "What size battery do I need?"
  • "How much current does my project draw?"
  • Planning battery-powered projects
  • Optimizing for low power

Workflow

Step 1: Gather Component List

Ask user for:

  1. Microcontroller (model and operating mode)
  2. All sensors and modules
  3. Displays
  4. Actuators (motors, LEDs, relays)
  5. Communication (WiFi, Bluetooth, LoRa)
  6. Operating profile (always on vs. duty cycle)

Step 2: Calculate Power Budget

Run scripts/calculate_power.py --interactive for guided calculation, or use this template:

# Power Budget: [Project Name]

## Operating Conditions
- Supply Voltage: [V]
- Operating Modes: [Active/Sleep cycles]
- Duty Cycle: [X% active, Y% sleep]

## Component Current Draw

### Always-On Components
| Component | Voltage | Current | Power | Notes |
|-----------|---------|---------|-------|-------|
| [name] | [V] | [mA] | [mW] | [conditions] |
| ... | ... | ... | ... | ... |
| **Subtotal** | - | **[mA]** | **[mW]** | - |

### Active Mode Only
| Component | Voltage | Current | Power | Duty % |
|-----------|---------|---------|-------|--------|
| [name] | [V] | [mA] | [mW] | [%] |
| ... | ... | ... | ... | ... |
| **Subtotal** | - | **[mA]** | **[mW]** | - |

### Peak Current Events
| Event | Current | Duration | Frequency |
|-------|---------|----------|-----------|
| [WiFi TX] | [mA] | [ms] | [per hour] |
| ... | ... | ... | ... |

## Power Calculations

### Average Current

I_avg = (I_active × t_active + I_sleep × t_sleep) / t_total I_avg = ([X]mA × [Y]s + [Z]mA × [W]s) / [T]s I_avg = [result] mA


### Battery Life Estimate

Capacity: [X] mAh Efficiency factor: 0.8 (80% usable) Effective capacity: [X × 0.8] mAh

Read the full file on GitHub · 365 lines

Files

What ships with it

4 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. 2mo ago First seen · 365 lines · 68 tokens per session scan A 758ffddb2b4b

Subscribe to this mod's changes

power-budget-calculator is a skill published in the GitHub repository wedsamuel1230/electronic-mcp-server (1 stars, last pushed 10mo ago), licensed MIT. It adds 68 tokens to every session and 3,093 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 92% identical to power-budget-calculator, differing in 15 lines, and is treated as a copy.

Hardware and IoT
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