automotive-hardware-safety

automotive-hardware-safety is a skill for Claude Code, Codex from pangzhenying2025/hermes-automotive-skills. It costs 32 tokens per session (2,993 once invoked), scanned A, original, MIT.

A set of automotive safety methods for measuring how well hardware safety mechanisms detect faults under ISO 26262, an automotive functional-safety standard.

In plain words
What is it for?
Use it to calculate diagnostic coverage, assess safety mechanisms such as watchdogs and redundancy, and classify detection as low, medium, high, or very high.
Why use it?
It shows which failures may remain hidden and whether diagnostic measures provide the required level of fault detection.

Skill for Claude CodeCodex

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

Good fit Use it to calculate diagnostic coverage, assess safety mechanisms such as watchdogs and redundancy, and classify detection as low, medium, high, or very high.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/pangzhenying2025/hermes-automotive-skills/automotive-hardware-safety
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 pangzhenying2025/hermes-automotive-skills --skill automotive-hardware-safety
Clone the repo
git clone --depth 1 https://github.com/pangzhenying2025/hermes-automotive-skills

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 automotive-hardware-safety

README.md
[![agentmods](https://agentmods.dev/badge/skills/pangzhenying2025/hermes-automotive-skills/automotive-hardware-safety/github.svg)](https://agentmods.dev/skills/pangzhenying2025/hermes-automotive-skills/automotive-hardware-safety)
Your own site
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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 automotive-hardware-safety

Your own site · 80×15
<a href="https://agentmods.dev/skills/pangzhenying2025/hermes-automotive-skills/automotive-hardware-safety"><img src="https://agentmods.dev/badge/skills/pangzhenying2025/hermes-automotive-skills/automotive-hardware-safety.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,993 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 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 $0.00032 $0.02993
Opus 5 $0.00016 $0.01496
Sonnet 5 $0.00006 $0.00599
Haiku 4.5 $0.00003 $0.00299

Measured 12d ago against content hash 1056e29e39e1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

automotive-hardware-safety 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 12d 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.

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.

skills/automotive-hardware-safety/SKILL.md · 393 lines

How it starts

The opening of the file, as written. The whole thing — 393 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Automotive Hardware Safety

4 skill files covering hardware-safety domain for automotive software engineering.

Instructions

Diagnostic Coverage Analysis

You are an expert in diagnostic coverage analysis per ISO 26262.

What is Diagnostic Coverage (DC): DC is the ratio of detected faults to total faults for a given failure mode.

Formula: DC = λ_detected / (λ_detected + λ_undetected)

Where:

  • λ_detected: Failure rate detected by safety mechanism
  • λ_undetected: Residual failure rate (not detected)

Diagnostic Coverage Levels (ISO 26262-5 Table 6):

  • DC = 0%: None (no diagnostic)
  • DC < 60%: Low
  • 60% ≤ DC < 90%: Medium
  • 90% ≤ DC < 99%: High
  • DC ≥ 99%: Very High

Sources of Diagnostic Coverage:

1. Hardware Diagnostics:

  • Plausibility checks (range, gradient, correlation)
  • Redundancy and voting (dual sensors, triple modular redundancy)
  • Self-tests (BIST, RAM/ROM tests)
  • Watchdog timers
  • Memory protection (ECC, parity, CRC)
  • Voltage/temperature monitoring

2. Software Diagnostics:

  • Control flow monitoring
  • Data integrity checks (checksums, CRCs)
  • Alive counters
  • Sequence monitoring
  • Logical execution time monitoring

Diagnostic Coverage by Mechanism:

Safety Mechanism Typical DC ISO 26262 Reference
Plausibility check (range) 60-70% Part 5, Annex D
Dual sensor with voting 90-95% Part 5, Annex D
Triple modular redundancy 99%+ Part 5, Annex D
Watchdog timer 90-95% Part 6, Annex B
ECC memory 95-99% Part 5, Annex D
CRC on communication 99%+ Part 6, Annex B

Calculating Overall DC:

For multiple diagnostics on same element: DC_total = 1 - Π(1 - DC_i) for independent diagnostics

Example:

  • Plausibility check: DC1 = 70%
  • Redundant sensor: DC2 = 90%
  • DC_total = 1 - (1 - 0.7)(1 - 0.9) = 1 - (0.3)(0.1) = 1 - 0.03 = 97%

Verification of DC:

DC must be verified, not just claimed. Methods:

  • Fault injection testing (software/hardware)
  • Formal verification
  • Analysis (for well-established mechanisms)

Read the full file on GitHub · 393 lines

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. 12d ago First seen · 393 lines · 32 tokens per session scan A 1056e29e39e1

Subscribe to this mod's changes

automotive-hardware-safety is a skill published in the GitHub repository pangzhenying2025/hermes-automotive-skills (5 stars, last pushed 3mo ago), licensed MIT. It adds 32 tokens to every session and 2,993 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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