Forecast knowledge continuity semimarkov
Forecast critical code-knowledge continuity with a company-local hierarchical Bayesian semi-Markov model whose state-exit hazard depends on time already resilient, concentrated, orphaned or recovering; require a strict latest-period holdout improvement over persistence, simulate coherent common shocks, and expose orphaning, delay, recovery-cost and portfolio VaR/CVaR without predicting named departures.
What it's for
Turns a static bus-factor snapshot into a validated forward view of which critical systems may become orphaned, how long recovery could take, and what the economic tail means for delivery and diligence.
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_units | array of objects (8 fields) | Evidence | Yes |
| historical_periods | array of objects (9 fields) | Evidence | Yes |
| holdout_fraction | number > 0, < 1 | Your calibration | Optional |
| horizon_periods | integer ≥ 1, ≤ 120 | Your calibration | Optional |
| max_detail_rows | integer ≥ 1, ≤ 500 | Numerical control | Optional |
| maximum_holdout_ece | number ≥ 0, ≤ 1 | Your calibration | Optional |
| minimum_log_loss_improvement | number ≥ 0 | Your calibration | Optional |
| minimum_training_transitions | integer ≥ 5, ≤ 100000 | Your calibration | Optional |
| scenarios | array of objects (6 fields) | Evidence | Yes |
| seed | integer ≥ 0, ≤ 4294967295 | Numerical control | Optional |
| simulation_draws | integer ≥ 200, ≤ 20000 | Numerical control | Optional |
| tail_probability | number > 0, < 1 | Your calibration | Optional |
Each historical_periods
record
| Field | Type | Required |
|---|---|---|
| evidence_verified | boolean | Yes |
| id | string (non-empty) | Yes |
| next_state | one of "resilient", "concentrated", "orphaned", "recovering" | Yes |
| outcome_matured | boolean | Yes |
| period | integer (≥ 0) | Yes |
| state | one of "resilient", "concentrated", "orphaned", "recovering" | Yes |
| state_age_periods | integer (≥ 0) | Yes |
| unit_class_id | string (non-empty) | Yes |
| unit_ref | string (non-empty) | Yes |
{
"current_units": [
{
"criticality_value": 10,
"current_state": "concentrated",
"delay_cost_per_period": 5,
"evidence_verified": true,
"id": "payments",
"recovery_cost": 25,
"state_age_periods": 1,
"unit_class_id": "service"
}
],
"historical_periods": [
{
"evidence_verified": true,
"id": "knowledge-0-0",
"next_state": "resilient",
"outcome_matured": true,
"period": 0,
"state": "resilient",
"state_age_periods": 0,
"unit_class_id": "service",
"unit_ref": "unit-0"
},
{
"evidence_verified": true,
"id": "knowledge-0-1",
"next_state": "concentrated",
"outcome_matured": true,
"period": 1,
"state": "resilient",
"state_age_periods": 1,
"unit_class_id": "service",
"unit_ref": "unit-0"
},
{
"evidence_verified": true,
"id": "knowledge-0-2",
"next_state": "orphaned",
"outcome_matured": true,
"period": 2,
"state": "concentrated",
"state_age_periods": 0, Truncated for display — the full payload is 3559 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.
{
"assumptions": {
"age_buckets": [
"new",
"established",
"persistent"
],
"class_shrinkage": "Beta leave hazards and Dirichlet destinations shrink to the company-wide state model",
"common_scenario_per_draw": true,
"individual_departure_prediction_permitted": false,
"simulation_draws": 200,
"states": [
"resilient",
"concentrated",
"orphaned",
"recovering"
]
},
"decision": "accepted",
"knowledge_unit_forecasts": [
{
"expected_loss": 46.225,
"expected_unavailable_periods": 3.295,
"knowledge_unit_id": "payments",
"p90_loss": 67.5,
"probability_orphaned": 1,
"supported": true,
"unit_class_id": "service"
}
],
"limitations": [
"The estimand is continuity of a technical knowledge unit, not the probability that a named person leaves.",
"Scenario multipliers are governed stresses, not learned causal effects.",
"State definitions and period cadence must remain stable across training, validation, and forecast inputs."
],
"method": "hierarchical_bayesian_semi_markov_knowledge_continuity_v1",
"portfolio_forecast": {
"conditional_value_at_risk": 67.5,
"expected_loss": 46.225,
"horizon_periods": 6,
"tail_probability": 0.1,
"value_at_risk": 67.5
},
"validation": { Truncated for display — the full payload is 58 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 Build a complete zero-inclusive mature unit-period panel over stable resilient, concentrated, orphaned and recovering definitions; reserve the latest whole periods before fitting anything.
- 2 Fit class-shrunk Beta state-exit hazards by duration bucket and Dirichlet next-state distributions, then compare multiclass log loss and leave-probability calibration with a persistence baseline on the untouched holdout.
- 3 For each current knowledge unit, sample posterior transition dynamics under one coherent operating scenario per draw and price orphaned/recovering periods plus recovery events into unit and portfolio loss, VaR and CVaR; downgrade to diagnostic-only on weak transitions, poor validation, unverified evidence or unseen classes.
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.
- State definitions, period cadence, knowledge-unit identity, maturity rules, criticality, delay/recovery economics and scenario multipliers remain comparable from training through forecast origin.
- Posterior probability and adaptive selection are model-conditional; they are not substitutes for randomized propensities or guaranteed safety.
- The model forecasts aggregate technical-unit continuity states, not whether a named person will leave, and scenario multipliers are stresses rather than causal estimates.
Minimum evidence
- historical_periods: required and organization-defined
- current_units: required and organization-defined
- scenarios: 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
- chronologically versioned resilient/concentrated/orphaned/recovering state panel derived from accepted concentration audits and verified recovery outcomes, with one next state per mature unit-period and no post-origin information
- state definitions, period cadence, maturity and recovery rules, unit/class continuity, latest-period holdout, minimum transition support, log-loss/ECE improvement gates, horizon, scenario probabilities/multipliers, finance price basis and CVaR 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 critical codeknowledge continuity with a" }
→ finds "forecast_knowledge_continuity_semimarkov"
gitrevio_capability_describe
{ "capability_id": "forecast_knowledge_continuity_semimarkov" }
→ returns the input schema and agent guidance shown on this page
gitrevio_capability_run
{ "capability_id": "forecast_knowledge_continuity_semimarkov", "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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