Agent-Skills.md

Agent Skills: CAN Bus Skill

CAN/CAN-FD bus analysis and development expertise

UncategorizedID: a5c-ai/babysitter/can-bus

Repository

a5c-ai/babysitter
a5c-aiLicense: MIT
244

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pnpm dlx add-skill https://github.com/a5c-ai/babysitter/tree/HEAD/plugins/babysitter/skills/babysit/process/specializations/embedded-systems/skills/can-bus

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plugins/babysitter/skills/babysit/process/specializations/embedded-systems/skills/can-bus/SKILL.md

Skill Metadata

Name
can-bus
Description
CAN/CAN-FD bus analysis and development expertise

CAN Bus Skill

Overview

This skill provides comprehensive CAN and CAN-FD bus analysis, development, and debugging capabilities for automotive and industrial embedded systems.

Capabilities

Message Frame Operations

  • CAN message frame generation
  • Frame analysis and decoding
  • Identifier filtering and masking
  • Standard (11-bit) and extended (29-bit) IDs
  • Remote frame handling

DBC File Support

  • DBC file parsing and generation
  • Signal decoding and encoding
  • Message definition management
  • Physical value scaling
  • Multiplexed signal support

Protocol Support

  • CAN 2.0A/B compliance
  • CAN-FD configuration and validation
  • J1939 transport protocol
  • CANopen communication
  • UDS (ISO 14229) diagnostics
  • ISO-TP (ISO 15765-2)

Bus Analysis

  • Bus arbitration analysis
  • Error frame detection and analysis
  • Bus-off recovery monitoring
  • Bus load calculation
  • Bit timing verification
  • Network topology analysis

Gateway Operations

  • Message routing configuration
  • Gateway bridge setup
  • Protocol translation
  • Filtering and forwarding rules

Target Processes

  • device-driver-development.js - CAN driver implementation
  • signal-integrity-testing.js - CAN bus signal validation
  • hw-sw-interface-specification.js - CAN interface definition
  • functional-safety-certification.js - CAN safety requirements

Dependencies

  • CAN interface tools (PEAK, Vector, Kvaser)
  • DBC files for signal decoding
  • CAN analyzer hardware
  • SocketCAN (Linux)

Usage Context

This skill is invoked when tasks require:

  • CAN driver development
  • Bus communication debugging
  • DBC-based signal analysis
  • Protocol stack implementation
  • Automotive networking

Configuration Examples

CAN Bit Timing

can:
  bitrate: 500000  # 500 kbps
  sample_point: 87.5
  sjw: 1
  seg1: 13
  seg2: 2
  prescaler: 4

CAN-FD Configuration

can_fd:
  nominal_bitrate: 500000
  data_bitrate: 2000000
  brs: enabled  # Bit Rate Switch
  esi: enabled  # Error State Indicator

DBC Signal Definition

BO_ 0x123 EngineData: 8 ECU
 SG_ EngineRPM : 0|16@1+ (0.25,0) [0|16383.75] "rpm" Vector__XXX
 SG_ EngineTemp : 16|8@1+ (1,-40) [-40|215] "C" Vector__XXX