Optimize identity assurance response portfolio

Choose one preauthorized identity-assurance response per aggregate account-risk case by maximizing simulated net access value minus security, false-positive, operating and CVaR costs under budget, capacity, control, availability and due-process constraints.

What it's for

Converts identity-risk exposure into a costed, capacity-aware and human-governed response frontier that explicitly prices both compromise and false-positive harm.

What you give it

Inputs split into evidence read from your connected systems, calibration your team owns, and numerical controls that affect precision but never the result's meaning.

Field Type Role Required
beam_width integer ≥ 1, ≤ 100000 Numerical control Optional
exact_state_limit integer ≥ 1, ≤ 10000000 Your calibration Optional
identity_provider_groups array of objects (3 fields) Evidence Yes
identity_risk_cases array of objects (11 fields) Evidence Yes
max_detail_rows integer ≥ 1, ≤ 500 Numerical control Optional
random_seed integer ≥ 0, ≤ 4294967295 Your calibration Optional
resource_capacities array of objects (3 fields) ≥ 0 items Evidence Yes
response_budget number ≥ 0 Your calibration Yes
response_options array of objects (20 fields) Evidence Yes
risk_aversion number ≥ 0 Your calibration Optional
scenarios array of objects (7 fields) Evidence Yes
simulation_count integer ≥ 1000, ≤ 200000 Your calibration Optional
tail_probability number > 0, < 1 Your calibration Optional

Each response_options record

Field Type Required
action_type string (non-empty) Yes
available_scenario_ids array of string Yes
case_id string (non-empty) Yes
common_compromise_detection_probability_scenarios array of number (≥ 1 item) Yes
compromise_detection_probability_scenarios array of number (≥ 1 item) Yes
dependency_option_ids array of string Yes
due_process_ready boolean Yes
evidence_verified boolean Yes
exclusion_option_ids array of string Yes
false_positive_probability_scenarios array of number (≥ 1 item) Yes
human_approval_recorded boolean Yes
id string (non-empty) Yes
implementation_cost number (≥ 0) Yes
is_current_state boolean Yes
legal_basis_verified boolean Yes
legitimate_access_retention_fraction number (≥ 0, ≤ 1) Yes
operating_cost_scenarios array of number (≥ 1 item) Yes
remediation_success_probability_scenarios array of number (≥ 1 item) Yes
resource_demands object Yes
satisfied_control_ids array of string Yes
Example input
{
  "identity_provider_groups": [
    {
      "evidence_verified": true,
      "id": "idp-core",
      "unique_common_loss_scenarios": [
        500000,
        1000000
      ]
    }
  ],
  "identity_risk_cases": [
    {
      "allowed_action_type_ids": [
        "monitor",
        "reverify"
      ],
      "compromise_prior_alpha": 2,
      "compromise_prior_beta": 8,
      "direct_loss_scenarios": [
        200000,
        400000
      ],
      "evidence_verified": true,
      "id": "case-admin",
      "identity_provider_group_id": "idp-core",
      "legitimate_access_value_scenarios": [
        300000,
        250000
      ],
      "maximum_residual_compromise_probability": 0.15,
      "minimum_legitimate_access_retention_fraction": 0.8,
      "required_control_ids": [
        "identity-check"
      ]
    }
  ],
  "random_seed": 42,
  "resource_capacities": [
    {
      "capacity": 1,
      "evidence_verified": true,
      "id": "assurance-hours"
    }

Truncated for display — the full payload is 156 lines.

What you get back

This is the actual output of running the example above — computed by the same function the platform calls, not an illustration.

Example output
{
  "assumptions": [
    "Risk cases use auditable account-security evidence and calibrated priors; response detection, remediation, false-positive, access-retention, cost and resource effects are prospectively validated in the local organization.",
    "Disruptive options are eligible only with recorded human approval, legal basis and due-process readiness; common provider loss is counted once and exact optimality is claimed only after complete enumeration."
  ],
  "baseline_current_state": {
    "conditional_value_at_risk": 1400010,
    "expected_false_positive_disruption_loss": 0,
    "expected_net_value": 158619.015,
    "expected_security_loss": 126600,
    "selected_option_ids": [
      "monitor"
    ]
  },
  "constraints": {
    "resource_capacities": {
      "assurance-hours": 1
    },
    "response_budget": 100,
    "risk_aversion": 0.25,
    "tail_probability": 0.05
  },
  "decision": "review_governed_identity_assurance_response_portfolio",
  "failed_gates": [
    {
      "gate": "maximum_residual_compromise_probability_exceeded",
      "rejected_state_count": 1
    }
  ],
  "limitations": [
    "The optimizer chooses among preauthorized account-security responses; it does not infer identity, nationality, espionage, guilt, concurrent employment or employee suitability and cannot recommend hiring, firing or punishment.",
    "No output itself authorizes surveillance, investigation, external disclosure, access removal or employment action; accountable humans must review evidence, proportionality, correction rights and applicable law."
  ],
  "method": "beta_binomial_false_positive_common_idp_cvar_response_portfolio_v1",
  "portfolio_pareto_frontier": [
    {
      "conditional_value_at_risk": 1036928.8,
      "expected_net_value": 214016.515,
      "selected_option_ids": [
        "reverify"
      ]
    }
  ],
  "reproducibility": {

Truncated for display — the full payload is 82 lines.

How it works

Sequential Bayesian & bandits — Learn while deciding — update beliefs as evidence arrives and choose where the next unit of effort is worth spending.

  1. 1 Draw calibrated Beta-binomial compromise risk and coherent scenarios, then evaluate each case-option combination for individual and shared-provider security loss, retained legitimate access and false-positive disruption.
  2. 2 Reject portfolios violating allowed actions, required controls, risk ceilings, retention, scenario availability, dependencies, exclusions, budget, resources or disruptive-action governance.
  3. 3 Use exact Cartesian enumeration when tractable and a deterministic economic beam otherwise; report the current baseline, selected portfolio, CVaR and non-dominated value-risk frontier.

Before you trust it

Every tool in the catalog ships with the conditions under which its answer is meaningful — and the conditions under which it should abstain instead of guessing.

Assumptions & guardrails

  • The likelihood or reward model, prior support, action logging, delayed outcomes, and any stationarity assumptions match the deployment process.
  • Cases are aggregate auditable account-security cases; response effects and false-positive costs are prospectively validated locally, and every option is preauthorized within applicable security, privacy, labor and access-control policy.
  • Posterior probability and adaptive selection are model-conditional; they are not substitutes for randomized propensities or guaranteed safety.
  • The optimizer never infers identity, nationality, espionage, guilt, concurrent employment or suitability and its output cannot itself authorize surveillance, access removal, investigation or employment action.

Minimum evidence

  • identity_risk_cases: required and organization-defined
  • identity_provider_groups: required and organization-defined
  • response_options: required and organization-defined
  • scenarios: required and organization-defined
  • resource_capacities: at least 0 rows/items
  • response_budget: required and organization-defined

How to validate it

Backtest the chosen action against simple feasible baselines on held-out scenarios, sweep costs/constraints/risk tolerance, and require constraint feasibility under adverse inputs.

Calibrating it to your org

Same for everyone

The mathematical kernel, validation rules, method version, and JSON output semantics are organization-independent; no tenant-trained coefficients or company benchmark is embedded in the function.

Specific to you

  • versioned multiple-choice case-to-response matrix joined to one coherent scenario set and provider-loss group, with full resource demand, option relations, current-state marker and prospectively measured response/false-positive effects
  • case and loss boundaries, allowed actions, required controls, risk/retention limits, common-loss uniqueness, response-effect evidence, budget/resources, CVaR appetite, disruptive-action policy, accountable human approval, lawful basis, due process and correction rights

Calibration workflow

  1. 1 Define the management decision, target outcome, aggregate unit, privacy boundary, cadence, and prediction/intervention horizon for this organization.
  2. 2 Build a tenant-scoped historical cohort using only information available before each prediction or decision; preserve zero periods, censoring, assignment probabilities, and unresolved outcomes when the method requires them.
  3. 3 Estimate statistical parameters on training history, but obtain costs, utilities, risk tolerance, practical-effect thresholds, capacity, and policy constraints from accountable decision owners.
  4. 4 Validate on later time windows or held-out aggregate units at the deployment grain, against a simple baseline and the function-specific validation strategy.
  5. 5 Deploy only if the returned decision clears evidence, overlap, calibration, robustness, and guardrail checks; warning, unsupported, schema-gap, and fallback decisions are abstentions.
  6. 6 Monitor realized outcomes, data drift, coverage, and decision regret; recalibrate at a governed cadence or after a detected regime/definition change, never merely because a stakeholder dislikes the result.

Call it from your AI

You don't wire up 388 tools in your MCP client. The GitRevio MCP server exposes 18 tools, three of which let an agent search the catalog, read a tool's schema, and run it — so the assistant finds this one on its own.

gitrevio_capabilities_search
  { "q": "choose one preauthorized identityassurance response per" }
  → finds "optimize_identity_assurance_response_portfolio"

gitrevio_capability_describe
  { "capability_id": "optimize_identity_assurance_response_portfolio" }
  → returns the input schema and agent guidance shown on this page

gitrevio_capability_run
  { "capability_id": "optimize_identity_assurance_response_portfolio", "arguments": { ... } }
  → returns the result shown above

Works in Claude Desktop, Claude Code, Cursor, Cline, Continue.dev, Goose and Aider. See the MCP server.

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