auto-iso26262-audit

Tier: Enterprise | Type: Agent | Category: Compliance | Version: 1.0.0

AI-powered ISO 26262 functional safety audit assistant for automotive engineers. Generates HARA worksheets, classifies ASIL levels, and drafts functional safety concepts from vehicle function descriptions.

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1. Overview

Plugin Name: auto-iso26262-audit Slug: auto-iso26262-audit Required Tier: Enterprise Plugin Type: Agent (orchestrator-integrated tools) Category: Compliance Author: Dryade License: DSUL

What It Does

Assists functional safety engineers with ISO 26262 Part 3 compliance documentation. Takes vehicle function descriptions as input and generates structured HARA worksheets with severity/exposure/controllability scoring, automatic ASIL classification, and functional safety concept drafts with traceable safety requirements.

Key Capabilities

• HARA worksheet generation from function descriptions
• ASIL classification via ISO 26262 Part 3 Table 4 matrix
• Functional safety concept drafting with FSR/HSR/SSR decomposition
• Hazard identification from a library of 12+ common automotive hazards
• Audit-ready documentation with ISO 26262 clause references

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2. User Stories

Primary User Stories

US-1: Generate HARA for New Vehicle Function

As a functional safety engineer, I want to generate a HARA worksheet from a function description so that I can reduce HARA creation time from 2-4 weeks to 2-3 days.

Acceptance Criteria:

• [ ] HARA worksheet generated with hazardous events, S/E/C ratings, and ASIL classification
• [ ] Each hazardous event includes a safety goal
• [ ] ISO 26262 Part 3 clause references included

US-2: Classify ASIL Level

As a safety engineer, I want to classify ASIL levels from S/E/C ratings so that I can quickly determine safety requirements for hazardous events.

Acceptance Criteria:

• [ ] ASIL classification follows ISO 26262 Part 3 Table 4
• [ ] QM result returned for S0/E0/C0 combinations
• [ ] Human-readable ASIL description provided

Edge Cases

• S0/E0/C0 ratings: Returns QM (no safety requirements)
• Invalid S/E/C combination: Returns INVALID with guidance

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3. Architecture

Component Diagram

+------------------+     +------------------+     +------------------+
|   Plugin Router  | --> |  Safety Logic    | --> |  Data Provider   |
| /auto-iso26262-  |     |  ASIL Matrix     |     |  (mock / real)   |
|  audit/*         |     |  HARA Generator  |     +------------------+
+------------------+     +------------------+            |
                               |                   +-----v------+
                         +-----v------+            | Demo Data  |
                         | Hazard Lib |            | data/*.json|
                         +------------+            +------------+

Dependencies

• Internal: core.plugins.EnterprisePluginProtocol, core.plugin_config_store.PluginConfigStore
• External: None (fully self-contained)
• Plugin: None

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4. API Spec / Agent Capabilities

REST Endpoints

| Method | Path | Description | Auth | |--------|------|-------------|------| | GET | /auto-iso26262-audit/health | Health check | No | | POST | /auto-iso26262-audit/hara | Generate HARA worksheet | Yes | | POST | /auto-iso26262-audit/classify-asil | Classify ASIL from S/E/C | Yes | | POST | /auto-iso26262-audit/safety-concept | Generate safety concept | Yes |

Request/Response Examples

POST /auto-iso26262-audit/classify-asil

// Request
{"severity": "S3", "exposure": "E4", "controllability": "C3"}

// Response
{
  "status": "ok",
  "severity": "S3",
  "exposure": "E4",
  "controllability": "C3",
  "asil": "D",
  "iso_reference": "ISO 26262 Part 3, Table 4",
  "description": "ASIL D -- highest automotive safety integrity level"
}

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5. Data Flow

Processing Pipeline

1. User provides vehicle function description or S/E/C ratings
2. Plugin loads hazard library and HARA templates from demo data
3. Hazards matched to function, S/E/C estimated from hazard profiles
4. ASIL classified using ISO 26262 matrix
5. Structured HARA worksheet or safety concept returned

Demo Data Description

The data/ directory contains:

• asil-classification.json: Full ASIL classification matrix with S/E/C descriptions
• hara-examples.json: 3 complete HARA examples (ACC, EPS, BMS)
• hazard-library.json: 12 common automotive hazards with severity ratings
• safety-concept-templates.json: 2 functional safety concept templates
• vehicle-functions.json: 3 sample vehicle function descriptions

Total: 5 data files covering ISO 26262 Part 3 core methodology.

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6. Security Considerations

Data Handling

• PII: No -- processes technical safety documentation only
• Encryption: N/A -- no data persistence beyond plugin config
• Data Retention: No data stored; stateless processing

Isolation

• Plugin runs in sandboxed context via core plugin loader
• No external API calls -- all processing is local
• Safety-critical data never leaves the deployment environment

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7. Test Plan

Test Classes

| Class | Tests | Coverage Target | |-------|-------|----------------| | TestPluginAttributes | 7 | 100% manifest fields | | TestMarketplace | 3 | Marketplace metadata | | TestASILClassification | 7 | ASIL matrix correctness | | TestDemoData | 6 | All data files | | TestPluginModule | 2 | Module structure |

Running Tests

cd dryade-plugins
python -m pytest enterprise/auto-iso26262-audit/tests/ -x -v --tb=short

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8. Deployment Notes

Requirements

No additional Python packages required beyond core dependencies.

Configuration

{
  "data_source": "mock"
}

Set data_source to "real" to process uploaded documents instead of demo data.

Compatibility

• Min Dryade Version: 1.0.0
• Python: >=3.11

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9. User Guide

Getting Started

1. Ensure your Dryade instance has an Enterprise tier license
2. Install the plugin via the marketplace or dryade-pm push
3. Navigate to the chat interface and ask about ISO 26262 analysis

Common Workflows

Workflow 1: Generate HARA

1. Describe the vehicle function (e.g., "Adaptive Cruise Control")
2. Plugin generates hazardous events with S/E/C ratings
3. Review and adjust ratings based on domain expertise

Workflow 2: Classify ASIL

1. Provide severity, exposure, and controllability ratings
2. Plugin returns ASIL classification with ISO reference
3. Use ASIL to determine safety requirement level

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10. Screenshots

Plugin operates via API/chat interface. No dedicated UI screenshots.

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11. Changelog

1.0.0 (2026-03-05)

• Initial release
• HARA worksheet generation for vehicle functions
• ASIL classification matrix (ISO 26262 Part 3 Table 4)
• Functional safety concept drafting
• Hazard library with 12 common automotive hazards
• Demo data for ACC, EPS, and BMS functions

Future Roadmap

• [ ] FMEA integration for HARA-to-FMEA workflow
• [ ] Safety case argument structure (GSN notation)
• [ ] Multi-language support for safety documentation