Bravos turns a codebase into a proof-led security assessment. It sets up, maps, prioritizes, and tests a running app, so the report rests on observed behavior, not guesses.
Summary
You have a codebase. You want to know whether someone can use it in ways you never intended.
Bravos is BugB's autonomous whitebox pentest agent. A pentest is a security assessment that tries to demonstrate how an application can be attacked. Whitebox means the assessment can read the source code, rather than treating the app as a sealed box.
Point Bravos at a codebase. It works through the assessment like a careful security engineer, without a person driving each step. It can start even when no local environment has been set up.
The important part is not that it produces a report. It is how it gets there.
From Source Code to Observed Proof
Bravos connects five pieces of work:
- Set up. It prepares a local environment and creates test users and roles when needed. Security checks need a working app and the right access to exercise it.
- Map. It uses GuardLink to build a threat model: a map of where untrusted input could reach sensitive actions.
- Rank. It builds a code graph and prioritizes the attack surface by what each entry point can reach. An entry point is a place where input enters the app, such as an API route.
- Prove. It drives Cert-X-Gen against a running copy of the application. Live tests confirm or refute threats through the app's actual behavior.
- Report. It writes up proven findings. A suspicious code path alone is not enough to claim an exploit.
For a founder, this means the assessment does not stop at a list of worrying patterns. For a developer, it connects a source-level question to evidence from the running application.
The Value Is the Orchestration
GuardLink and Cert-X-Gen are open source. A team can use them directly.
Bravos is the product that orchestrates them. It handles the work of deciding how to drive the specialist tools, supervising the process, and checking what the evidence supports.
Think of a good engineering manager. The manager does not replace every specialist. They understand the goal, delegate work to the right people, and verify the result before calling it done.
Bravos plays that role for the assessment. GuardLink says where to look. Cert-X-Gen tests whether the threat holds up on a live copy. Bravos manages the loop.
That coordination is what the customer pays for—not exclusive access to the two open-source tools.
Autonomous Does Not Mean Magic
Reading code can reveal a dangerous path. It cannot, by itself, prove that the path can be exploited in the running app.
A control might block it. A test might lack the required access. The environment might not allow the behavior being tested. Those distinctions matter.
Our principle is simple: cheap is untrue. An easy claim is worthless if the evidence does not support it. Bravos reports only what it proves. An unproven threat is not a confirmed finding, and a report with no proven findings is not a guarantee that the application has no vulnerabilities.
Autonomy removes the need to steer every step. It does not remove the need for evidence.
What a First Run Looks Like
Start with a codebase you are authorized to assess. Bravos is the CLI product; its command is bravos.
The first run works toward a running local copy, with test users and roles where needed. GuardLink maps the relevant paths in the source. Bravos ranks the entry points and drives Cert-X-Gen to test the threats against the app.
The output to care about is the connection between the code, the behavior observed during testing, and the finding in the report.
When a developer changes the code, the same loop provides a way to test the suspected issue again. Security and development can discuss evidence instead of arguing over a warning.
That is the point of Bravos: not more confident language, but a better path from a security question to a supported answer.
Need help hardening your environment?
Talk to the Bugb security team directly.