forgesight-governance

Cost budgets, policy enforcement, and a kill-switch for ForgeSight. The SDK already knows what every LLM call costs and already has a veto point (the interceptor chain) — this package turns that cost signal into a control: stop the spend, deny a model, or cut off one scope's runs in seconds.

pip install forgesight-governance

import forgesight
from forgesight_governance import BudgetInterceptor, PolicyInterceptor, KillSwitch

forgesight.configure(interceptors=[
    KillSwitch.from_config(),      # cheapest veto first
    PolicyInterceptor.from_config(),
    BudgetInterceptor.from_config(),
])

Or purely by name (entry-point auto-load) — interceptors: [{name: kill-switch}, {name: policy}, {name: budget}] plus a governance: block.

What you get

• Budgets. Per-run / per-team / per-repo / per-environment USD or token caps, keyed on the business metadata the SDK already attaches (FR-5). A breach raises BudgetExceeded → RunStatus.BUDGET_EXCEEDED; the run record still flushes (telemetry is never lost).
• Policy. First-match-wins rules over metadata: deny a model set (e.g. unpriced/preview models in prod), allow-list the models a team may call, or redact content for PII-tagged runs. A denial raises PolicyDenied → RunStatus.GUARDRAIL.
• Kill-switch. Flip FORGESIGHT_KILL_REPO_PAYMENTS_AGENT=true (or a file entry) and every run for that repo trips immediately, while every other agent keeps running — no redeploy.

governance:
  budgets:
    per_run: { usd: 5.0 }
    per_team: { growth: { usd: 200.0 }, research: { usd: 2000.0 } }
    on_breach: "raise"          # raise | drop | mark
  policies:
    rules:
      - match: { environment: "prod" }
        action: "deny"
        models: ["*-experimental", "gpt-*-preview"]
      - match: { pii: "true" }
        action: "redact"
  kill_switch:
    source: "env"               # env | file

A budget/policy/kill trip is the one sanctioned case where an interceptor's exception propagates to the caller (a deliberate control, not a telemetry failure, P6). All of governance.* is absent → disabled; install is necessary, config is the enabler.

Out of scope (0.3)

Fleet-wide / cross-process caps (process-local for now; the BudgetCap + total-store split leaves room for a shared store), spend forecasting, and a general policy language.

License

Apache-2.0