One reviewer model is not enough.
Build your own reviewer personas.
Performance Reviewer with GPT-5-mini for speed. Security Reviewer with GPT-5-pro for paranoia. A11y Reviewer with a tight WCAG 2.2 prompt. Each persona, each model, each cost — your call.
Frequently asked
Does AGENA do PR comment threading like CodeRabbit?
AGENA writes the structured review (Summary, Findings, Severity, Score) into the PR description and posts a comment with the per-finding breakdown. We do not yet thread per-line comments inline on the diff (on the roadmap). For now, each finding cites file:line so reviewers can click through.
Can I run different reviewers on different repos?
Yes — the reviewer agent is picked per task / per Integration Rule. You can have a Performance Reviewer fire on backend repos and an A11y Reviewer fire on frontend repos, with a single security_developer agent gating all security-tagged tasks.
How does cost compare?
AGENA is BYO LLM, so the variable cost is whatever your provider charges per review. A typical review on GPT-5-mini is $0.01-0.05; on GPT-5 it’s $0.15-0.40. CodeRabbit at $24/dev/mo for unlimited reviews is competitive at high review volume; AGENA wins at lower volume or when you want to control which model runs.
Is the security reviewer really OWASP-aware?
The system prompt explicitly enumerates the OWASP Top 10 (A01-A10) and asks the model to map each finding to the relevant category. It’s tuned to be paranoid — treats every input as malicious, traces data flow, and outputs threat model + fix plan + residual risk. You can edit the prompt in [Prompt Studio](/dashboard/prompts) and roll back to previous versions if a tweak degrades quality.