Skip to content

Deployment-aware risk scoring: amplify finding severity by agentic power #200

Description

@arunSunnyKVS

Problem

A report today carries three numbers, and none answers "how bad is this finding, on this agent?":

  • Evaluator severity (low/high/critical) is a static label baked into the evaluator YAML. A BOLA finding is "high" whether the target is a read-only demo bot or an agent wired to prod with a refund tool — blind to the deployment.
  • The per-evaluator "Avg Score" is the mean of the judge's per-attack scores. It's cosmetic (feeds nothing) and, worse, averaging hides breaches: 9 9 2 → 6.7 looks healthy even though one attack got through.
  • The headline Safety Score is an aggregate posture %, so individual critical holes get diluted into one figure.

Proposal

Add a deployment-aware per-evaluator risk score (0–10): keep the severity label as a floor and amplify it by the target's agentic power (autonomy, tools, identity/tenancy, persistence). Same flaw → higher score on a more powerful agent. This mirrors the OWASP AIVSS amplification model, reduced to something fully automatic.

Key properties:

  • Worst-case, not averaged — a finding scores from its severity floor; a defended evaluator scores 0.0. Fixes the breach-hiding above and removes the "running the same evaluator N times moves the score" wobble.
  • No new setup questions — the power profile is derived from businessUseCase + target metadata already in the config.

Acceptance

  • Pure amplifiedRisk(severity, isFinding, power) with unit tests
  • Deterministic deriveAgentProfile() from existing config, with unit tests
  • Per-evaluator risk surfaced in the report ("Risk (this agent)" column + rationale caption)
  • Headline summary shape and severity-weighted scores unchanged
  • Node + browser report paths agree (equivalence test green)

Implemented in the linked PR. Follow-ups tracked separately.

Metadata

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Type

    No type

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions