Forecast incident learning debt economics
Forecast how much corrective-action debt will remain open and what recurrent incident and operating loss it may create using hierarchical closure, recurrence and severity models that must beat global baselines on the latest whole period.
What it's for
Gives CTOs and investors a financial answer to a neglected reliability question: how much post-incident learning debt is likely to survive, recur and cost—not merely how many tickets are still open.
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 |
|---|---|---|---|
| current_actions | array of objects (7 fields) | Evidence | Yes |
| historical_action_periods | array of objects (15 fields) | Evidence | Yes |
| horizon_days | number ≥ 1 | Your calibration | Yes |
| max_detail_rows | integer ≥ 1, ≤ 500 | Numerical control | Optional |
| maximum_closure_ece | number ≥ 0, ≤ 1 | Your calibration | Optional |
| minimum_local_actions | integer ≥ 1 | Your calibration | Optional |
| minimum_log_loss_improvement | number | Your calibration | Optional |
| minimum_recurrence_mae_improvement | number | Your calibration | Optional |
| minimum_training_periods | integer ≥ 1 | Your calibration | Optional |
| scenarios | array of objects (6 fields) | Evidence | Optional |
| seed | integer ≥ 0 | Numerical control | Optional |
| simulations | integer ≥ 200, ≤ 100000 | Numerical control | Optional |
| tail_probability | number > 0.5, ≤ 1 | Your calibration | Optional |
Each historical_action_periods
record
| Field | Type | Required |
|---|---|---|
| closed_exposure_days | number (≥ 0) | Yes |
| closed_recurrence_count | integer (≥ 0) | Yes |
| closure_log_days_sq_sum | number (≥ 0) | Yes |
| closure_log_days_sum | number | Yes |
| context_id | string (non-empty) | Yes |
| eligible_action_count | integer (≥ 1) | Yes |
| evidence_verified | boolean | Yes |
| id | string (non-empty) | Yes |
| open_exposure_days | number (≥ 0) | Yes |
| open_recurrence_count | integer (≥ 0) | Yes |
| outcome_mature | boolean | Yes |
| period_index | integer (≥ 0) | Yes |
| recurrence_loss_log_sq_sum | number (≥ 0) | Yes |
| recurrence_loss_log_sum | number | Yes |
| verified_closed_count | integer (≥ 0) | Yes |
{
"current_actions": [
{
"age_days": 25,
"completion_cost": 2000,
"context_id": "risky",
"evidence_verified": true,
"id": "checkout-timeout-action",
"open_drag_cost_per_day": 100,
"overdue": true
}
],
"historical_action_periods": [
{
"closed_exposure_days": 200,
"closed_recurrence_count": 0,
"closure_log_days_sq_sum": 46.62522709164422,
"closure_log_days_sum": 28.969882423813804,
"context_id": "stable",
"eligible_action_count": 20,
"evidence_verified": true,
"id": "stable-0",
"open_exposure_days": 200,
"open_recurrence_count": 1,
"outcome_mature": true,
"period_index": 0,
"recurrence_loss_log_sq_sum": 47.71708299430558,
"recurrence_loss_log_sum": 6.907755278982137,
"verified_closed_count": 18
},
{
"closed_exposure_days": 200,
"closed_recurrence_count": 2,
"closure_log_days_sq_sum": 17.948823709625927,
"closure_log_days_sum": 5.991464547107982,
"context_id": "risky",
"eligible_action_count": 20,
"evidence_verified": true,
"id": "risky-0",
"open_exposure_days": 200,
"open_recurrence_count": 12,
"outcome_mature": true,
"period_index": 0,
"recurrence_loss_log_sq_sum": 1015.5961180386997, Truncated for display — the full payload is 120 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.
{
"action_forecasts": [
{
"action_id": "checkout-timeout-action",
"context_id": "risky",
"expected_cost": 10344.9294,
"expected_recurrences": 1.494,
"locally_supported": true,
"probability_outstanding": 0.778
}
],
"configuration": {
"horizon_days": 30,
"scenario_count": 1,
"seed": 53,
"simulations": 500,
"tail_probability": 0.95
},
"decision": "forecast_available",
"detail_truncated": false,
"evidence_diagnostics": {
"immature_history_rows": 0,
"unsupported_current_contexts": [],
"unsupported_holdout_contexts": [],
"unverified_current_actions": 0,
"unverified_history_rows": 0
},
"interpretation": "Observed recurrence rates before and after verified closure are predictive states, not causal effects of closure. The forecast is aggregate decision support and does not assess individuals or authorize action.",
"method": "hierarchical_beta_gamma_poisson_lognormal_incident_learning_debt_simulation",
"summary": {
"conditional_value_at_risk": 31290.3926,
"current_action_count": 1,
"expected_outstanding_actions": 0.778,
"expected_recurrences": 1.494,
"expected_total_cost": 10344.9294,
"value_at_risk": 26772.8251
},
"validation": {
"closure_ece": 0.0923,
"closure_log_loss_improvement": 0.3361,
"context_closure_log_loss": 0.3571,
"context_recurrence_mae": 0.8478,
"global_closure_log_loss": 0.6931,
"global_recurrence_mae": 6.5, Truncated for display — the full payload is 51 lines.
How it works
Forecasting & survival — Estimate when something completes or fails, with censoring and unresolved work handled honestly rather than dropped.
- 1 Build zero-inclusive context-period aggregates with verified closures, open/closed exposure, recurrence counts and log-moment sufficient statistics; reserve the latest mature whole period before fitting.
- 2 Partially pool Beta closure probabilities, Gamma-Poisson open/closed recurrence rates and log-normal closure/loss moments by local context, then require context predictions to beat global closure-log-loss and recurrence-MAE baselines with acceptable calibration.
- 3 Replay every current action under one coherent closure, frequency, severity and drag scenario per simulation; report outstanding-action, recurrence, expected-cost, VaR and CVaR distributions with unsupported contexts and abstention visible.
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
- Training examples precede their outcomes, censoring and unresolved work are represented, and deployment populations remain comparable to validation cohorts.
- Periods are zero-inclusive and mature, context/state definitions are stable, open and verified-closed exposure clocks are complete, recurrence families are consistently linked, financial loss is incremental and commensurable, and scenarios preserve common operating shocks.
- A predictive interval or risk estimate is not a deadline promise, causal explanation, or individual-performance judgment.
- Open-versus-closed recurrence is predictive, not causal proof that closure prevented an event. Unsupported or losing models remain diagnostic; no forecast scores people or authorizes corrective work.
Minimum evidence
- historical_action_periods: required and organization-defined
- current_actions: required and organization-defined
- horizon_days: required and organization-defined
How to validate it
Use chronological train/calibration/test windows, compare proper scores and decision value with a simple baseline, and recalibrate only from outcomes resolved after prediction time.
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
- stable company-local action-context period spine joined point-in-time to postmortem action versions, verified control closure, mature recurrence-family incidents, finance-reconciled incremental loss and one coherent future scenario set
- action/context/state and recurrence-family taxonomy, period and exposure clocks, closure verification, outcome maturity, loss/drag perimeter, holdout policy, minimum local support, prior and baseline gates, common scenarios, horizon and tail appetite
Calibration workflow
- 1 Define the management decision, target outcome, aggregate unit, privacy boundary, cadence, and prediction/intervention horizon for this organization.
- 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 Estimate statistical parameters on training history, but obtain costs, utilities, risk tolerance, practical-effect thresholds, capacity, and policy constraints from accountable decision owners.
- 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 Deploy only if the returned decision clears evidence, overlap, calibration, robustness, and guardrail checks; warning, unsupported, schema-gap, and fallback decisions are abstentions.
- 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": "forecast how much correctiveaction debt will" }
→ finds "forecast_incident_learning_debt_economics"
gitrevio_capability_describe
{ "capability_id": "forecast_incident_learning_debt_economics" }
→ returns the input schema and agent guidance shown on this page
gitrevio_capability_run
{ "capability_id": "forecast_incident_learning_debt_economics", "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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