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Official agent skill

Evse Simulator

by SAP in SAP/e-mobility-charging-stations-simulator

Control and monitor an OCPP charging station simulator via CLI.

OfficialApache-2.0Auto-check passed

Install Evse Simulator

skills CLI
$ npx skills add SAP/e-mobility-charging-stations-simulator --skill evse-simulator -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install SAP/e-mobility-charging-stations-simulator evse-simulator --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/SAP/e-mobility-charging-stations-simulator.git skills-src && mkdir -p .claude/skills && cp -r skills-src/ui/cli/skills/evse-simulator .claude/skills/evse-simulator && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
evse-simulator
GitHub stars
227
Token cost
~2k tokens
SKILL.md length
387 words
Files
1
Skills in repo
5
Repo updated
First seen
Licence
Apache-2.0

At a glance

Control and monitor an OCPP charging station simulator via CLI.

  • Users ask to manage charging stations
  • SKILL.md covers Status, Configuration, Global Options and Commands, plus 4 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • Trigger OCPP messages from stations to the CSMS

What it does

Evse Simulator is an agent skill from SAP/e-mobility-charging-stations-simulator, published by the product's own GitHub organization. Control and monitor an OCPP charging station simulator via CLI. Use when users ask to manage charging stations, trigger OCPP messages from stations to the CSMS, start/stop the simulator or ATG, list stations or templates, or check simulator state.

Its SKILL.md is about 2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts. Compatibility notes: Requires the simulator UI server to be running with WebSocket enabled.

The repository describes itself as: OCPP-J charging stations simulator. The licence is Apache-2.0.

When your agent uses it

  • Users ask to manage charging stations
  • Trigger OCPP messages from stations to the CSMS
  • Start/stop the simulator
  • Check simulator state

Example prompts

  • “/evse-simulator”

Requirements

  • Compatibility (from SKILL.md): Requires the simulator UI server to be running with WebSocket enabled.

What it can do on your machine

Read from SKILL.md and the folder at commit 54939b7. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are bash and json).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Links to these hosts (documentation or services it may open):

    • no-color.org

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

  • Compatibility

    Requires the simulator UI server to be running with WebSocket enabled.

    From compatibility in the SKILL.md frontmatter.

Context cost

Evse Simulator loads about 2k tokens when it runs. Until then it costs about 66 tokens; SKILL.md has 387 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~66
When it runs · the whole SKILL.md, loaded when a task matches
~2k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from SAP/e-mobility-charging-stations-simulator at commit 54939b7, republished under its Apache-2.0 licence (© SAP). 387 words, ~1,989 tokens.

Download SKILL.mdSave it as .claude/skills/evse-simulator/SKILL.md (or your agent's skills folder).
name
evse-simulator
description
Control and monitor an OCPP charging station simulator via CLI. Use when users ask to manage charging stations, trigger OCPP messages from stations to the CSMS, start/stop the simulator or ATG, list stations or templates, or check simulator state.
compatibility
Requires the simulator UI server to be running with WebSocket enabled.
license
Apache-2.0
metadata.author
SAP

e-Mobility Charging Station Simulator CLI

Status

!evse-cli --version 2>/dev/null || echo "Not installed — see ui/cli/README.md"

Configuration

The CLI connects to the simulator UI server via WebSocket (SRPC protocol).

Config file location: ${XDG_CONFIG_HOME:-$HOME/.config}/evse-cli/config.json

json
{
  "uiServer": {
    "host": "localhost",
    "port": 8080,
    "protocol": "ui",
    "version": "0.0.1",
    "authentication": {
      "enabled": true,
      "type": "protocol-basic-auth",
      "username": "admin",
      "password": "admin"
    }
  }
}

Precedence: defaults < config file < --config <path> < --server-url <url>.

Global Options

OptionDescription
--jsonMachine-readable JSON output
-C, --config <path>Path to configuration file
--server-url <url>WebSocket URL override

NO_COLOR environment variable disables color output (see no-color.org).

Commands

Simulator
shell
evse-cli simulator state   # Get state, version, template statistics
evse-cli simulator start   # Start the simulator
evse-cli simulator stop    # Stop the simulator
Stations
shell
evse-cli station list                                     # List all stations
evse-cli station start [hashId...]                        # Start station(s)
evse-cli station stop [hashId...]                         # Stop station(s)
evse-cli station add -t <template> -n <count>             # Add stations
evse-cli station add -t <template> -n 2 --auto-start      # Add and auto-start
evse-cli station add -t <template> -n 1 --supervision-url ws://csms:8180/path
evse-cli station add -t <template> -n 1 --base-name MY-CS --fixed-name
evse-cli station add -t <template> -n 1 --name-suffix -EU         # Suffix appended to derived id
evse-cli station add -t <template> -n 1 --ocpp-strict             # Enable OCPP strict compliance
evse-cli station add -t <template> -n 1 --persistent-config       # Enable persistent OCPP config
evse-cli station add -t <template> -n 1 --supervision-user alice --supervision-password s3cret
evse-cli station delete [hashId...]                       # Delete station(s)
evse-cli station delete --delete-config [hashId...]       # Delete with config files
Templates
shell
evse-cli template list    # List available station templates
Connections
shell
evse-cli connection open [hashId...]    # Open WebSocket to CSMS
evse-cli connection close [hashId...]   # Close WebSocket to CSMS
Connectors
shell
evse-cli connector lock --connector-id <id> [hashId...]    # Lock connector
evse-cli connector unlock --connector-id <id> [hashId...]  # Unlock connector
ATG (Automatic Transaction Generator)
shell
evse-cli atg start [hashId...]                         # Start ATG on all connectors
evse-cli atg start --connector-ids 1,2 [hashId...]     # Start on specific connectors
evse-cli atg stop [hashId...]                          # Stop ATG on all connectors
evse-cli atg stop --connector-ids 1,2 [hashId...]      # Stop on specific connectors
Transactions
shell
evse-cli transaction start --connector-id <id> --id-tag <tag> [--evse-id <id>] [hashId...]
evse-cli transaction stop --transaction-id <id> [--connector-id <id>] [hashId...]

Both commands auto-detect the station's OCPP version and adapt the procedure and payload. The -p option uses the OCPP 1.6 procedure; for 2.0.x raw payloads use ocpp transaction-event -p.

OCPP Messages

Request station(s) to send OCPP messages to the CSMS:

shell
evse-cli ocpp heartbeat [hashId...]
evse-cli ocpp boot-notification [hashId...]
evse-cli ocpp authorize --id-tag <tag> [hashId...]
evse-cli ocpp status-notification --connector-id <id> [--error-code <code>] --status <status> [--evse-id <id>] [hashId...]
evse-cli ocpp meter-values --connector-id <id> [hashId...]                    # OCPP 1.6
evse-cli ocpp meter-values --evse-id <id> [hashId...]                        # OCPP 2.0.x
evse-cli ocpp data-transfer [--vendor-id <id>] [--message-id <id>] [--data <data>] [hashId...]

meter-values requires --connector-id for OCPP 1.6 and --evse-id for OCPP 2.0.x.

Other OCPP commands (no extra options): diagnostics-status-notification, firmware-status-notification, get-15118-ev-certificate, get-certificate-status, log-status-notification, notify-customer-information, notify-report, security-event-notification, sign-certificate, transaction-event.

All OCPP and transaction commands accept -p, --payload <json|@file|-> for custom JSON payloads:

shell
evse-cli ocpp boot-notification -p '{"reason":"PowerUp"}' [hashId...]  # Inline
evse-cli ocpp boot-notification -p @payload.json [hashId...]           # From file
cat payload.json | evse-cli ocpp boot-notification -p - [hashId...]    # From stdin

For typed-option commands (authorize, meter-values, status-notification, transaction start|stop), -p conflicts with typed options and the two cannot be combined. For data-transfer, command options merge with -p and typed options take precedence over -p fields.

Show full SKILL.md (195 more words)Show less
Version-aware commands

Commands with typed options (authorize, meter-values, status-notification, transaction start, transaction stop) auto-detect the target station's OCPP version and build the appropriate payload. Key differences:

  • --id-tag: sent as idTag (1.6) or wrapped as idToken (2.0.x)
  • --error-code: required for status-notification on 1.6 only
  • --evse-id: OCPP 2.0.x only; required for meter-values
  • --connector-id: OCPP 1.6 for meter-values; required for transaction stop on 2.0.x
  • --transaction-id: integer (1.6) or UUID string (2.0.x)

When -p is provided, version detection is skipped and the raw payload is passed through.

Supervision
shell
evse-cli supervision set-url --supervision-url <url> [--supervision-user <user>] [--supervision-password <password>] [hashId...]
Performance
shell
evse-cli performance stats   # Get performance statistics

Output Modes

  • Human (default): borderless tables, status icons, colored output
  • JSON (--json): structured JSON on stdout, parseable by scripts

Exit Codes

CodeMeaning
0Success
1Error (connection, server, auth)
130Interrupted (Ctrl+C)
143Terminated (SIGTERM)

hashId Convention

Omitting [hashId...] applies the command to ALL stations. Pass one or more hash IDs to target specific stations. Hash IDs support prefix matching — a short unambiguous prefix works in place of the full ID. Get hash IDs from evse-cli station list or evse-cli --json station list.

Common Workflows

Start simulator and check state
shell
evse-cli simulator start
evse-cli simulator state
Add stations from template and start ATG
shell
evse-cli template list
evse-cli station add -t keba-ocpp2.station-template -n 3 --auto-start
evse-cli atg start
Request all stations to send OCPP Heartbeat
shell
evse-cli ocpp heartbeat
Change supervision URL and reconnect
shell
evse-cli station stop <hashId>
evse-cli supervision set-url --supervision-url ws://new-csms:8180/path <hashId>
evse-cli station start <hashId>

© SAP, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in ui/cli/skills/evse-simulator of SAP/e-mobility-charging-stations-simulator.

Open the folder on GitHubat commit 54939b7

Compare with similar skills

Evse Simulator next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Evse Simulator compared with similar skills
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Evse Simulator this skillSAP/e-mobility-charging-stations-simulator227—~2kAutomated safety check: PassApache-2.0
Qdrant Monitoringgithub/awesome-copilot40k1 repos~276Automated safety check: PassMIT
Agent Performance Monitorruvnet/ruflo74k2 repos~4.9kAutomated safety check: PassMIT
Monitor Streamruvnet/ruflo74k—~188Automated safety check: PassMIT
Monitoring ExpertJeffallan/claude-skills12k—~1.6kAutomated safety check: PassMIT
Implementing Security Monitoring With Datadogmukul975/Anthropic-Cybersecurity-Skills34k—~3.7kAutomated safety check: NotesApache-2.0

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Questions about Evse Simulator

What does Evse Simulator do?

Control and monitor an OCPP charging station simulator via CLI. Evse Simulator is an agent skill from SAP/e-mobility-charging-stations-simulator, published by the product's own GitHub organization. Control and monitor an OCPP charging station simulator via CLI.

When should I use Evse Simulator?

Evse Simulator fits situations like: users ask to manage charging stations; trigger OCPP messages from stations to the CSMS; start/stop the simulator; check simulator state.

How do I install Evse Simulator in Claude Code?

Run `npx skills add SAP/e-mobility-charging-stations-simulator --skill evse-simulator -a claude-code`. Or copy the skill folder (ui/cli/skills/evse-simulator in SAP/e-mobility-charging-stations-simulator) into .claude/skills/evse-simulator in your project. Claude Code loads it when a task matches its description.

How do I install Evse Simulator in Codex?

Run `npx skills add SAP/e-mobility-charging-stations-simulator --skill evse-simulator -a codex`. Or copy the skill folder (ui/cli/skills/evse-simulator in SAP/e-mobility-charging-stations-simulator) into .agents/skills/evse-simulator in your project. Codex loads it when a task matches its description.

Can I use Evse Simulator in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add SAP/e-mobility-charging-stations-simulator --skill evse-simulator -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/evse-simulator, .gemini/skills/evse-simulator, .github/skills/evse-simulator and .opencode/skills/evse-simulator in your project.

What does Evse Simulator need to run?

SKILL.md names no scripts, command-line tools or credentials: Evse Simulator is instructions for the agent only. Compatibility (from SKILL.md): Requires the simulator UI server to be running with WebSocket enabled..

Does Evse Simulator access the network?

SKILL.md names 1 domain. As links in the text: no-color.org. This is read from the text; nothing was executed.

Is Evse Simulator safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Evse Simulator use?

Evse Simulator is published under the Apache-2.0 licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Evse Simulator use?

About 2k tokens (SKILL.md is roughly 8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Evse Simulator?

Skills that share tags, products or a category with Evse Simulator: Qdrant Monitoring (github/awesome-copilot, 40k stars), Agent Performance Monitor (ruvnet/ruflo, 74k stars), Monitor Stream (ruvnet/ruflo, 74k stars) and Monitoring Expert (Jeffallan/claude-skills, 12k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Evse Simulator?

SAP (a GitHub organization, an official publisher) maintains it in SAP/e-mobility-charging-stations-simulator, which has 227 GitHub stars. The repository holds 5 skills in this directory. The repository was last updated on October 7, 2026.

Source: SAP/e-mobility-charging-stations-simulator on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.