# Quota Management (behavior features): rate limits, budgets, spend tracking. Grounded in
# litellm/proxy/hooks/ + litellm/proxy/auth/auth_checks.py + litellm/proxy/spend_tracking/.
- {id: quota_management.ratelimit.rpm.blocks_over_limit, module: quota_management, tier: P0, behavior: ratelimit, variant: rpm, assertions: [blocks_over_limit], exercised_on: [chat_completions, messages], source: "parallel_request_limiter_v3.py", rationale: "v3 limiter enforces RPM per key/team/model; 429 on breach"}
- {id: quota_management.ratelimit.batch_rpm.blocks_over_limit, module: quota_management, tier: P0, behavior: ratelimit, variant: batch_rpm, assertions: [blocks_over_limit], exercised_on: [batches], source: "batch_rate_limiter.py", rationale: "Batch create that exceeds key RPM returns mapped 429 with retry-after"}
- {id: quota_management.ratelimit.tpm.blocks_over_limit, module: quota_management, tier: P0, behavior: ratelimit, variant: tpm, assertions: [blocks_over_limit], exercised_on: [chat_completions, messages], source: "parallel_request_limiter_v3.py", rationale: "v3 limiter enforces TPM per key/team/model; 429 on breach"}
- {id: quota_management.ratelimit.tpm.excludes_cached_tokens, module: quota_management, tier: P0, behavior: ratelimit, variant: tpm, assertions: [excludes_cached_tokens], exercised_on: [chat_completions], source: "parallel_request_limiter_v3.py:_get_total_tokens_from_usage", rationale: "Cached prompt tokens must not count toward TPM (LIT-1930)"}
- {id: quota_management.ratelimit.redis_backed.blocks_over_limit, module: quota_management, tier: P0, behavior: ratelimit, variant: redis_backed, assertions: [blocks_over_limit], exercised_on: [chat_completions], source: "parallel_request_limiter_v3.py", rationale: "With Redis configured, RPM still enforces 429 across the shared limiter path customers run multi-replica"}
- {id: quota_management.ratelimit.rpm.resets_after_window, module: quota_management, tier: P1, behavior: ratelimit, variant: rpm, assertions: [resets_after_window], exercised_on: [chat_completions], source: "parallel_request_limiter_v3.py", rationale: "Rate-limit window (LITELLM_RATE_LIMIT_WINDOW_SIZE, 60s default) expires; a blocked key serves again in the next window"}
- {id: quota_management.ratelimit.rpm.headers_report_remaining, module: quota_management, tier: P1, behavior: ratelimit, variant: rpm, assertions: [headers_report_remaining], exercised_on: [chat_completions], source: "parallel_request_limiter_v3.py async_post_call_success_hook", rationale: "Successful responses carry x-ratelimit-api_key-{limit,remaining}-{requests,tokens} so clients can pace"}
- {id: quota_management.ratelimit.priority_generous.picks_under_tpm, module: quota_management, tier: P1, behavior: ratelimit, variant: priority_generous, assertions: [picks_under_tpm], exercised_on: [chat_completions, messages], source: "dynamic_rate_limiter_v3.py:36-52", rationale: "Generous mode (<80% sat) allows priority borrowing"}
- {id: quota_management.ratelimit.priority_strict.picks_under_tpm, module: quota_management, tier: P1, behavior: ratelimit, variant: priority_strict, assertions: [picks_under_tpm], exercised_on: [chat_completions, messages], source: "dynamic_rate_limiter_v3.py:53-71", rationale: "Strict mode (>=80% sat) enforces priority fairness"}
- {id: quota_management.budget.key.blocks_over_limit, module: quota_management, tier: P0, behavior: budget, variant: key, assertions: [blocks_over_limit], exercised_on: [chat_completions], source: "proxy/auth/auth_checks.py", rationale: "A key's max_budget blocks further paid calls once spend crosses it"}
- {id: quota_management.budget.team.blocks_over_limit, module: quota_management, tier: P0, behavior: budget, variant: team, assertions: [blocks_over_limit], exercised_on: [chat_completions], source: "proxy/auth/auth_checks.py", rationale: "A team's max_budget blocks every key on the team once combined spend crosses it, including keys that spent nothing themselves"}
- {id: quota_management.budget.internal_user.blocks_over_limit, module: quota_management, tier: P1, behavior: budget, variant: internal_user, assertions: [blocks_over_limit], exercised_on: [chat_completions], source: "proxy/auth/auth_checks.py", rationale: "An internal user's max_budget governs personal keys"}
- {id: quota_management.budget.internal_user.enforced_across_keys, module: quota_management, tier: P1, behavior: budget, variant: internal_user, assertions: [enforced_across_keys], exercised_on: [chat_completions], source: "proxy/auth/auth_checks.py", rationale: "An internal user's max_budget governs every personal key it owns; a second untouched key is blocked once the shared user budget is exhausted"}
- {id: quota_management.budget.end_user.blocks_over_limit, module: quota_management, tier: P1, behavior: budget, variant: end_user, assertions: [blocks_over_limit], exercised_on: [chat_completions], source: "proxy/auth/auth_checks.py", rationale: "A customer (end-user) max_budget blocks calls attributed via user="}
- {id: quota_management.budget.organization.blocks_over_limit, module: quota_management, tier: P1, behavior: budget, variant: organization, assertions: [blocks_over_limit], exercised_on: [chat_completions], source: "proxy/auth/auth_checks.py", rationale: "An organization's max_budget blocks keys under its teams"}
- {id: quota_management.budget.team_member.blocks_over_limit, module: quota_management, tier: P1, behavior: budget, variant: team_member, assertions: [blocks_over_limit], exercised_on: [chat_completions], source: "proxy/auth/auth_checks.py", rationale: "A member's per-team budget blocks independently of the team budget"}
- {id: quota_management.budget.team_member.isolates_per_member, module: quota_management, tier: P1, behavior: budget, variant: team_member, assertions: [isolates_per_member], exercised_on: [chat_completions], source: "proxy/auth/auth_checks.py", rationale: "One team member's exhausted per-team budget does not block a different member on the same team"}
- {id: quota_management.budget.tag.blocks_over_limit, module: quota_management, tier: P1, behavior: budget, variant: tag, assertions: [blocks_over_limit], exercised_on: [chat_completions], source: "router_strategy/budget_limiter.py", rationale: "Proxy-level tag budgets block tagged requests at the cap"}
- {id: quota_management.budget.model_max.isolates_per_model, module: quota_management, tier: P1, behavior: budget, variant: model_max, assertions: [isolates_per_model], exercised_on: [chat_completions], source: "proxy/hooks/model_max_budget_limiter.py", rationale: "model_max_budget caps one model without touching a sibling's budget"}
- {id: quota_management.budget.soft.alerts_without_blocking, module: quota_management, tier: P1, behavior: budget, variant: soft, assertions: [alerts_without_blocking], exercised_on: [chat_completions], source: "proxy/auth/auth_checks.py", rationale: "soft_budget alerts but never blocks traffic"}
- {id: quota_management.budget.key.resets_after_window, module: quota_management, tier: P1, behavior: budget, variant: key, assertions: [resets_after_window], exercised_on: [chat_completions], source: "proxy/common_utils/reset_budget_job.py", rationale: "budget_duration zeroes key spend after the window; a blocked key serves again"}
- {id: quota_management.budget.team.resets_after_window, module: quota_management, tier: P1, behavior: budget, variant: team, assertions: [resets_after_window], exercised_on: [chat_completions], source: "proxy/common_utils/reset_budget_job.py", rationale: "budget_duration zeroes a team's spend after the window; every key on the team serves again"}
- {id: quota_management.budget.organization.resets_after_window, module: quota_management, tier: P1, behavior: budget, variant: organization, assertions: [resets_after_window], exercised_on: [chat_completions], source: "proxy/common_utils/reset_budget_job.py", rationale: "An org budget resets after its window; keys under the org serve again"}
- {id: quota_management.budget.internal_user.resets_after_window, module: quota_management, tier: P1, behavior: budget, variant: internal_user, assertions: [resets_after_window], exercised_on: [chat_completions], source: "proxy/common_utils/reset_budget_job.py", rationale: "An internal user's budget resets after its window; their personal and team-member keys serve again"}
- {id: quota_management.budget.team_member.resets_after_window, module: quota_management, tier: P1, behavior: budget, variant: team_member, assertions: [resets_after_window], exercised_on: [chat_completions], source: "proxy/common_utils/reset_budget_job.py", rationale: "Member per-team budget reset keeps advancing window after window"}
- {id: quota_management.budget.key_multi_window.blocks_then_resets, module: quota_management, tier: P1, behavior: budget, variant: key_multi_window, assertions: [blocks_then_resets], exercised_on: [chat_completions], source: "proxy/common_utils/reset_budget_job.py", rationale: "budget_limits enforce within a short window and serve again in the next"}
- {id: quota_management.budget.key_multi_window.resets_windows_independently, module: quota_management, tier: P2, behavior: budget, variant: key_multi_window, assertions: [resets_windows_independently], exercised_on: [chat_completions], source: "proxy/common_utils/reset_budget_job.py", rationale: "Each window of a multi-window budget resets on its own schedule"}
- {id: quota_management.budget.team_multi_window.blocks_then_resets, module: quota_management, tier: P1, behavior: budget, variant: team_multi_window, assertions: [blocks_then_resets], exercised_on: [chat_completions], source: "proxy/common_utils/reset_budget_job.py", rationale: "Team budget_limits enforce and reset per window"}
- {id: quota_management.budget.fallback.routes_to_fallback, module: quota_management, tier: P1, behavior: budget, variant: fallback, assertions: [routes_to_fallback], exercised_on: [messages], source: "proxy/hooks/model_max_budget_limiter.py", rationale: "budget_fallbacks reroute to the fallback model once the primary's budget is exhausted"}
- {id: quota_management.budget.spend_counter.reseed_matches_db, module: quota_management, tier: P2, behavior: budget, variant: spend_counter, assertions: [reseed_matches_db], exercised_on: [chat_completions], source: "proxy/spend_tracking/budget_reservation.py", rationale: "Concurrent cold-counter reseeds keep the enforcement counter equal to DB spend (#26829)"}
- {id: quota_management.spend_tracking.chat_completions.logs_cost, module: quota_management, tier: P0, behavior: spend_tracking, variant: chat_completions, assertions: [logs_cost], exercised_on: [chat_completions], source: "proxy/spend_tracking/spend_tracking_utils.py", rationale: "A paid chat call writes a nonzero spend row"}
- {id: quota_management.spend_tracking.stream.logs_cost, module: quota_management, tier: P1, behavior: spend_tracking, variant: stream, assertions: [logs_cost], exercised_on: [chat_completions], source: "proxy/spend_tracking/spend_tracking_utils.py", rationale: "Streaming responses aggregate token counts into a spend row"}
- {id: quota_management.spend_tracking.messages_bridge.logs_cost, module: quota_management, tier: P1, behavior: spend_tracking, variant: messages_bridge, assertions: [logs_cost], exercised_on: [messages], source: "llms/anthropic/experimental_pass_through/responses_adapters/handler.py", rationale: "A streaming /v1/messages request served by an openai-provider model is bridged through the anthropic-messages -> Responses adapter and must aggregate the consumed SSE stream into one spend row with nonzero cost and token counts, attributed to custom_llm_provider openai under call_type anthropic_messages"}
- {id: quota_management.spend_tracking.embeddings.logs_cost, module: quota_management, tier: P1, behavior: spend_tracking, variant: embeddings, assertions: [logs_cost], exercised_on: [embeddings], source: "proxy/spend_tracking/spend_tracking_utils.py", rationale: "Embedding calls write nonzero spend rows"}
- {id: quota_management.spend_tracking.cache_hit.zero_cost, module: quota_management, tier: P1, behavior: spend_tracking, variant: cache_hit, assertions: [zero_cost], exercised_on: [chat_completions], source: "proxy/spend_tracking/spend_tracking_utils.py", rationale: "A response-cache hit logs at zero cost with the cache-hit marker"}
- {id: quota_management.spend_tracking.key_rollup.matches_sum_of_logs, module: quota_management, tier: P1, behavior: spend_tracking, variant: key_rollup, assertions: [matches_sum_of_logs], exercised_on: [chat_completions], source: "proxy/db/db_spend_update_writer.py", rationale: "A key's rolled-up spend equals the sum of its log rows"}
- {id: quota_management.spend_tracking.concurrent_burst.loses_no_spend, module: quota_management, tier: P1, behavior: spend_tracking, variant: concurrent_burst, assertions: [loses_no_spend], exercised_on: [chat_completions], source: "proxy/db/db_spend_update_writer.py", rationale: "Concurrent calls all land as spend; no row lost to write contention"}
- {id: quota_management.spend_tracking.tags.attributes_spend, module: quota_management, tier: P1, behavior: spend_tracking, variant: tags, assertions: [attributes_spend], exercised_on: [chat_completions], source: "proxy/spend_tracking/spend_tracking_utils.py", rationale: "Request tags round-trip to spend rows and tag rollups match tagged logs"}
- {id: quota_management.spend_tracking.end_user.attributes_spend, module: quota_management, tier: P1, behavior: spend_tracking, variant: end_user, assertions: [attributes_spend], exercised_on: [chat_completions], source: "proxy/spend_tracking/spend_tracking_utils.py", rationale: "user= attribution lands the end-user id on the spend row"}
- {id: quota_management.spend_tracking.per_model.writes_own_rows, module: quota_management, tier: P2, behavior: spend_tracking, variant: per_model, assertions: [writes_own_rows], exercised_on: [chat_completions], source: "proxy/spend_tracking/spend_tracking_utils.py", rationale: "Each model on a shared key gets its own spend row"}
- {id: quota_management.spend_tracking.failure.writes_failure_row, module: quota_management, tier: P1, behavior: spend_tracking, variant: failure, assertions: [writes_failure_row], exercised_on: [chat_completions], source: "proxy/spend_tracking/spend_log_error_logger.py", rationale: "A failed call writes a failure-status spend row"}
- {id: quota_management.spend_tracking.spend_calculate.returns_cost, module: quota_management, tier: P2, behavior: spend_tracking, variant: spend_calculate, assertions: [returns_cost], exercised_on: [spend_calculate], source: "proxy/spend_tracking/spend_management_endpoints.py", rationale: "/spend/calculate prices a hypothetical request at nonzero cost"}
- {id: quota_management.spend_tracking.pagination.keeps_total, module: quota_management, tier: P2, behavior: spend_tracking, variant: pagination, assertions: [keeps_total], exercised_on: [chat_completions], source: "proxy/spend_tracking/spend_management_endpoints.py", rationale: "Spend-logs v2 pagination caps page size without losing the total"}