feat(budget): add per-agent token budget enforcement#67
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Adds token budget controls to prevent runaway agents from consuming excessive API costs. Checks remaining budget before each LLM call, pauses the agent on limit exceeded, and emits warning/exceeded events. - New SQLite tables: token_budget_configs and token_budget_state - New budget-actions.ts: budget_set, budget_get, budget_resume actions - message-processor.ts: checkAndEnforceBudget() called before runAgent - api/events.ts: BudgetExceededEvent and BudgetWarningEvent types - Budget resets daily at configurable reset_hour (default midnight UTC) - Emits budget.warning at ≥80% usage (non-blocking) - Emits budget.exceeded and pauses agent when limit is hit - Depends on token_usage table from PR #59 (table creation is idempotent) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Adds token budget controls to prevent runaway agents from consuming excessive API costs.
Changes
token_budget_configsandtoken_budget_statebudget-actions.ts:budget_set,budget_get,budget_resumeactionsmessage-processor.ts:checkAndEnforceBudget()called beforerunAgentapi/events.ts:BudgetExceededEventandBudgetWarningEventtypesreset_hour(default midnight UTC)budget.warningat ≥80% usage (non-blocking)budget.exceededand pauses agent when limit is hitCloses #token-budget-enforcement