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SentinelFlow — agentic AppSec

Fix security beforethe code is merged.

Software is now being created faster than security teams can review it. SentinelFlow brings agentic AppSec into the developer workflow: validate what is real, remove the noise, generate the fix, verify it, and close valid issues before they become tomorrow’s backlog.

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Currently onboarding by invitation. Tell us about your repositories and we will scope an evaluation. Self-service coming soon.

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Application security for the AI era.

The problem

Code is now written faster than security can read it.

AI-assisted development changed the ratio. A team that shipped ten pull requests a week now ships fifty, and the security review capacity did not multiply with it. The backlog is not a discipline problem — it is arithmetic.

The queue grows faster than it drains

Every scanner run adds findings. Every sprint adds code. The backlog is a permanent record of work nobody will get to.

Most findings are not real work

Severity scores are assigned without knowing whether the code is reachable, so developers learn to distrust the whole channel.

A ticket is not a fix

Handing a developer a finding transfers the problem without reducing it. The work is writing and verifying the change.

Fixing after merge costs more

Once the code is in production, the same change needs a release, a regression risk and a coordination cost it never needed before merge.

What it does

What SentinelFlow does

  1. Validate what is real

    Every finding is reasoned against the actual code path, reachability and runtime context before anyone is asked to look at it.

  2. Remove the noise

    What cannot be exploited does not reach a developer. The scanner’s output stops being the team’s queue.

  3. Generate and verify the fix

    The agent writes the change, runs it against the tests and proves the issue is gone — arriving as a reviewable pull request, not a ticket.

  4. Close it before merge

    Valid issues are resolved in the same cycle that created them, so the backlog never forms in the first place.

How it reasons

From a scanner’s output, to the one change that matters.

Three diagrams, not screenshots. The product demo shows the real interface.

What survives validation — a representative repository
  1. Raw scanner findingseverything raised
  2. Reachable in this buildabout a quarter
  3. Exploitable in contexta handful
  4. Fixed before mergeall of those

Illustrative proportions, not a benchmark. The point is the shape: most findings are not the developer’s problem, and the ones that are should not survive the pull request.

Inside one pull request
  1. FINDING · as the diff landsFinding raisedA dependency in the diff carries a known issue.
  2. REACHABILITYReachability checkedIs the vulnerable function actually called on a live path?
  3. FIXFix generatedA minimal change, written to the repository’s conventions.
  4. PROOFFix verifiedTests run; the issue is proved gone, not assumed gone.
  5. MERGEMerged closedNothing enters the backlog, because nothing was left open.

The developer reviews a change, not a report. That is the whole difference.

What happens to the backlog

Before SentinelFlowZero security backlog

The loop

AI writes the code. Agents secure it in the same cycle.

SEE

Every repository, dependency and pull request as it moves.

UNDERSTAND

Which findings are reachable, exploitable and worth a developer’s time.

ACT

A fix, written and tested, waiting in the pull request.

ASSURE

The class of issue is watched so it does not come back in the next branch.

Who it’s for

The people who feel the backlog.

SentinelFlow has to be trusted by the developer whose pull request it touches, or it becomes another bot everyone mutes.

  • AppSec engineers

    You are the queue. SentinelFlow removes what cannot be exploited, validates what can, and arrives with the fix already written and tested — so your time goes to the design problems, not the dependency bumps.

  • Engineering leadership

    You need security to stop being a tax on velocity. Issues are resolved inside the cycle that created them, so there is no separate remediation program to schedule.

  • Developers

    You get a reviewable change written to your repository’s conventions, with evidence for why it matters and a test proving it worked. Not a report with your name on it.

Getting started

From one repository to every repository.

Start with a repository whose backlog you already resent. That is the honest test.

Start · the first day

Connect one repository

We connect to your source control with the narrowest permissions that work, on a repository you choose.

Then · the first run

See what survives validation

The existing findings are reasoned against reachability and runtime context. Most will not survive. The ones that do arrive with fixes.

After that · ongoing

Move to the pull request

Once you trust the output, SentinelFlow works at merge time — and the backlog stops forming instead of being worked down.

Datasheet

The technical answer.

Deployment
Connects to your source control. Fixes arrive as pull requests you review and merge.
Outputs
Validated findings with reachability evidence, generated and test-verified fixes, suppression rationale for what was dismissed.
Source control
GitHub, GitLab and Bitbucket, including self-hosted.
Languages
Over fifteen languages, with their package managers.
Scanner inputs
More than nine scanners: SAST, SCA, secrets, IaC, prompt security, MCP security, AI code review, code quality, AI code checks and more.
Code handling
Code is processed for the run and never retained.

PDF · two pages

SentinelFlow product brief

The one-pager to forward internally: what it does, what it needs, what it returns.

Request the brief

PDF · technical

SentinelFlow datasheet

Full specification: source control, languages, code handling and limits.

Request the datasheet

Scoped evaluation

Run it on one repository

Pick a repository with a backlog you dislike. That is the honest test.

Contact us

Questions

What people ask before they say yes.

Does the agent commit to our repositories?
It opens pull requests. A human reviews and merges, the same as any other contributor. Nothing lands without your approval unless you explicitly configure it to.
Do you replace our existing scanners?
Not necessarily. SentinelFlow consumes scanner output and does the reasoning and remediation on top. If you are happy with your scanners, keep them.
Where does our code go?
This is the question every team asks and it deserves a specific written answer rather than a reassurance. Our data-handling terms cover processing location, retention and model policy — ask and we will send them before you connect anything.
What if the generated fix is wrong?
It arrives as a pull request with the test run attached, so a wrong fix fails visibly at review rather than silently in production. Verification is part of the output, not a promise about it. The fix can also be delivered as a prompt for your coding agent, which requires the agent to validate the issue, apply the fix, and re-validate that the issue is gone and everything still works.
What does “zero security backlog” actually mean?
That valid issues are closed in the cycle that created them, so the queue has nothing to accumulate. It is a goal that describes how the product is designed, not a guarantee about your repository on day one.
What does it cost?
We are onboarding by invitation and scope pricing to your codebase. Tell us what you build and we will be specific.

Alongside the suite

A fix that closes the issue, not a ticket.

SentinelFlow works on its own inside your repositories today. It reasons about a vulnerable dependency in terms of reachability and runtime context rather than an abstract severity score — and as the suite converges on a shared graph, that same reasoning will extend out to the exposure Ore Hammer sees and the workload ActiveFlux protects.

Trusted by security and platform teams at

  • Instacart
  • Plume
  • HealthTap
  • MergeBase
  • Arrivo
  • LMKR

Zero security backlog.

SentinelFlow is available by invitation while we onboard carefully. Tell us what you build and we will scope an evaluation on your own repositories.

  • In your workflow
  • Fixes as pull requests
  • Scoped with you