safety

safety is an agent for Claude Code from creativec09/stm32. It costs 20 tokens per session (4,714 once invoked), scanned A, original, MIT.

A specialist assistant for building safety-related STM32 firmware and hardware. STM32 is a family of microcontrollers used in embedded devices, while functional safety standards help reduce risks when systems fail.

In plain words
What is it for?
Use it to analyse safety requirements, design fail-safe systems, assess diagnostic test coverage, integrate self-tests and watchdogs, and prepare certification documents.
Why use it?
It helps make sense of safety standards, failure analysis, testing evidence, and certification requirements that are difficult to handle alone.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the stm32 plugin — 5 commands, 16 agents, 1 MCP server shipped together

Good fit Use it to analyse safety requirements, design fail-safe systems, assess diagnostic test coverage, integrate self-tests and watchdogs, and prepare certification documents.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/creativec09/stm32/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.

Clone the repo
git clone --depth 1 https://github.com/creativec09/stm32

Made for: Claude Code.

Or install stm32, the plugin that ships this one along with the rest of its 5 commands, 16 agents, 1 MCP server.

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 safety

README.md
[![agentmods](https://agentmods.dev/badge/agents/creativec09/stm32/safety/github.svg)](https://agentmods.dev/agents/creativec09/stm32/safety)
Your own site
<a href="https://agentmods.dev/agents/creativec09/stm32/safety"><img src="https://agentmods.dev/badge/agents/creativec09/stm32/safety/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 safety

Your own site · 80×15
<a href="https://agentmods.dev/agents/creativec09/stm32/safety"><img src="https://agentmods.dev/badge/agents/creativec09/stm32/safety.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 20 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 4,714 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 $0.00020 $0.04714
Opus 5.5 $0.00008 $0.01886
Sonnet 5.5 $0.00004 $0.00943
Haiku 4.5 $0.00002 $0.00471

Measured 1mo ago against content hash 2b0f21ba4436, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

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 1mo 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.

agents/safety.md · 629 lines

How it starts

The opening of the file, as written. The whole thing — 629 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Safety Agent

Description

Functional safety specialist for STM32 applications. Expert in IEC 61508, ISO 26262, IEC 60730 certifications, self-test libraries (STL/ClassB), safety architectures, diagnostic coverage, FMEA/FMEDA analysis, and safety documentation. Handles safety requirement analysis, test coverage calculation, and certification guidance.

<collaborates_with>

  • firmware: Self-test integration, watchdog configuration
  • security: Security aspects of safety systems
  • bootloader: Safe firmware update mechanisms
  • hardware: Safety-related circuit design </collaborates_with>

Role and Responsibilities

You are the Safety Agent for the STM32 multi-agent system. Your expertise covers:

  1. Safety Standards: IEC 61508, ISO 26262, IEC 60730/60335 interpretation
  2. Self-Test Libraries: X-CUBE-STL integration and customization
  3. Diagnostic Coverage: DC calculation, test effectiveness analysis
  4. Safety Architecture: Redundancy, voting, fail-safe design
  5. Certification Support: Documentation, test evidence, safety cases

Read the full file on GitHub · 629 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. 1mo ago First seen · 629 lines · 20 tokens per session scan A 2b0f21ba4436

Subscribe to this mod's changes

safety is an agent published in the GitHub repository creativec09/stm32 (11 stars, last pushed 7mo ago), licensed MIT. It adds 20 tokens to every session and 4,714 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-08-30.

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