For embedded teams working to MISRA

Agents move fast. Safety-critical code cannot. Straion is how you get both.

Straion hands every developer's agent the MISRA rules that apply to the task, before it plans and before it writes. When a deviation is unavoidable, the rule, the reason, and the approver go on the record.

Book a technical demo → Start free

Audit trail

You shouldn't be finding violations in code review.

Your agent can't finish its turn while a rule is unresolved. It fixes the violation, or a named reviewer approves the deviation.

Waiting for approval src/net/frame_pool.c:118

Rule: MUST NOT call malloc, calloc, realloc or free outside startup.
Tags: misra-c-2012 · rule-21.3 · required · deviable
Agent's reason: "The vendor BSP allocates its ring buffer once during init and never frees it. I cannot reach that code. Requesting a deviation."

Approve it and the decision is on the record: the rule, the reason, the file, who said yes, and when. Your next audit gets an answer instead of a shrug.

Read how to catch violations before review

The blocker

It was never about the agent's
coding style.

In a MISRA codebase the standard is not a preference. It is written into the contract, checked by the toolchain, and defended in front of an assessor. That changes what a non-deterministic code generator costs you.

A generated violation is not a style nit.

An agent that writes dynamic allocation into a Required-guideline codebase creates rework, a finding in the analyzer report, and a conversation you have to have later. Multiply that by every developer running an agent.

An undocumented deviation is worse.

Deviations are part of normal engineering. Deviations nobody wrote down are not. When the guideline compliance summary is assembled, an unexplained deviation has no author, no rationale, and no approver.

So the agents get parked.

They write tests, scripts and build tooling. They stay out of the production C, which is exactly where the effort is. The tool is adopted everywhere except the place it would pay for itself.

Straion changes what the agent knows before it writes, and what you can show after.

How it helps

Prevention first. Evidence always.

Two mechanisms, and they work together. The agent gets your rules before it writes, and you get a record of every decision it could not make on its own.

Standards-aware before the first line

Straion selects the rules that apply to the task at hand and puts them in the agent's context before it plans. Dynamic allocation, recursion, pointer conversions, essential types: the agent writes to the standard instead of you catching it afterwards.

Mandatory guidelines are never offered as deviable. The agent fixes the code or it stops.

Every deviation on the record

When a deviation is genuinely needed, Straion captures the rule, the justification, the file, the approver and the date as a structured decision. Not a comment in the source. Not a message in a chat log nobody kept.

Export the decisions when it is time to assemble your evidence.

Upstream of your verification gate

Straion is not a static analyzer and will never claim to be one. It runs before the code exists, so fewer findings reach review and the analyzer. The ones that do arrive with a written rationale attached.

Keep Axivion, Polyspace, LDRA, Coverity or Parasoft exactly as they are.

Your rules, next to MISRA

The MISRA-aligned pack is a starting point. Your internal coding standard, your project deviation permits and your architecture rules live in the same place, selected the same way.

Rules live in your Git

On Enterprise plans rules are plain files on a dedicated branch in your own repository. A rule change is a pull request, so CODEOWNERS and branch protection govern your standard the way they govern code.

The agents your developers already use

Install the CLI, add the skill, and Straion works inside Claude Code, GitHub Copilot and Cursor. Your source code never leaves the developer's machine.

Same prompt, two outcomes

What your agent writes,
with and without Straion

"Parse the incoming frame and dispatch it." One prompt, one model, one codebase. The only difference is whether the agent had access to Straion when it started.

✗

Without Straion

int parse_frame(uint8_t *src, int len)
{
    char *buf = malloc(len);

    if (len > MAX_FRAME) return -1;

    memcpy(buf, src, len);

    switch (buf[0]) {
        case CMD_READ:  handle_read(buf);  break;
        case CMD_WRITE: handle_write(buf); break;
    }

    return 0;
}

Rule 21.3 Allocation from the standard library in a codebase that allocates statically.
Rule 16.4 Switch statement without a default label.
Rule 15.6 Body of an if statement is not a compound statement.

Three findings for your analyzer to be fixed in an additional iteration.

✓

With Straion

/* Frame buffer is statically allocated. */
static uint8_t frame_buf[MAX_FRAME];

int32_t parse_frame(const uint8_t *src, uint16_t len)
{
    int32_t status = FRAME_OK;

    if (len > MAX_FRAME)
    {
        status = FRAME_E_RANGE;
    }
    else
    {
        copy_frame(frame_buf, src, len);

        switch (frame_buf[0])
        {
            case CMD_READ:
                handle_read(frame_buf);
                break;
            case CMD_WRITE:
                handle_write(frame_buf);
                break;
            default:
                status = FRAME_E_CMD;
                break;
        }
    }

    return status;
}

21.3 Static buffer. No allocation to justify.
16.4 Default label handles the unknown command.
15.5 One exit at the end, the way the rest of the file does it.

Nothing to fix in review. Nothing to explain in the audit.

Where Straion sits

Your verification gate keeps its job.

Static analysis finds violations after the code is written. Straion works before, so fewer of them are ever written. The tool you qualified into your toolchain stays exactly where it is.

01
Developer + agent

Claude Code, Copilot or Cursor, driven by your engineer.
02
Straion

Applicable rules go in before the plan. Deviations get resolved or recorded.
03
Code review

A reviewer sees the change and the decisions behind it, not a surprise.
04
Your analyzer

Axivion, Polyspace, LDRA, Coverity, Parasoft. Unchanged, still the gate.

Straion writes to the standard. Your analyzer verifies it. Fewer findings reach the gate, and the ones that do arrive with a decision record attached.

Getting started

Up and running in 10 minutes

No change to your build, your analyzer or your review process. Straion sits between the developer and the agent, and nowhere else.

Install the CLI

One global install, then connect it to the agent your team already uses: Claude Code, GitHub Copilot or Cursor. Your source code stays on the developer machine.
Start from the rule pack

Load the MISRA-aligned pack for C:2012 and C++:2023, then add your project standard, your deviation permits and your architecture rules on top. Every statement is editable.
The agent gets the rules that apply

Straion selects the relevant rules from the task and hands them to the agent before it plans. Not the whole standard. The part that matters for this change.
Deviations get resolved or recorded

The agent cannot close the task with an open violation. It fixes the code, or a named reviewer approves a deviation and the reason goes on the record.

Objections

The four questions we always get

Asked by the person who has to sign off. Answered without the marketing.

"We already run Axivion, Polyspace or LDRA."

Keep them. They are your gate and Straion is not trying to be one. Static analysis reports violations after the agent has written them, which means a person still has to go back and rework the code. Straion runs earlier, so most of those violations never get written, and the deviations that remain carry a documented rationale your analyzer has no way to capture.

"We cannot let an AI agent near safety-critical code."

That is the reason Straion exists. Today the agent works from whatever context it happens to have and nobody can reconstruct why it made a call. With Straion the applicable rules are in front of it before it plans, it cannot silently deviate, and every exception has a named approver and a timestamp. That is what makes agent-written code reviewable and defensible.

"Is Straion certified or qualified?"

No, and we will not imply otherwise. Straion is a guardrail and a record, not a verification tool, and it carries no tool qualification. It helps your developers and their agents write to the standard and it documents the decisions behind deviations. Confirming conformance stays with your qualified toolchain and your process.

"Do you ship the MISRA guidelines themselves?"

No. The guidelines are published and licensed by MISRA and the documents stay the authority. Straion ships a rule pack written in our own words, structured so an agent can act on it, and mapped to the guidelines you work to. You can edit every statement, and you can add your own standard beside it.

How we handle your code and data → What the CLI actually sends →

Trust

Answers your security review will ask for

Suppliers in automotive, defense and medical devices get asked where the data goes before anyone gets asked what the tool does. Here is the short version.

Your code never leaves the machine

Straion syncs rules, not code. The CLI runs locally, your repository is never cloned, and file contents are never sent. Straion sees paths, tags and the task description your agent wrote.

EU hosted, EU based models

The service runs on EU infrastructure and the models that select rules run in the EU. TLS in transit, encrypted at rest. Task context does not leave the region.

Rules in your own Git

On Enterprise plans your rules are plain Markdown on a dedicated branch in your repository, governed by CODEOWNERS and branch protection. Leave Straion and you keep every rule.

No training on your data

Your rules, your task context and your usage are never used to train models. Not ours, not anyone else's.

Read the full security page

Set it up in under 5 minutes

Your MISRA rule pack and your internal coding standards in every developer's agent before it writes a line of code.

Works with Claude Code, GitHub Copilot & Cursor. Sits upstream of the analyzer you already qualified. No credit card required.

Get Started Free →

Book a technical demo

We'll go through your rule pack, your agent setup, and how a deviation gets recorded and approved. Bring your safety lead.