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g1t/docs/BILLING_OPERATIONS.md

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Git storage hardened, pages in tens of milliseconds, honest security alerts, and costs reconciled daily2d ago	1	# Billing operations: costs, margin and prices
	2
	3	How g1t checks what it charges against what Cloudflare charges it, keeps
	4	prices at cost plus 20%, and tells staff when the margin slips. Internal.
	5	Code: `services/billing/src/costs.rs` (reading the bill), `margin.rs`
	6	(reconciliation, drift, alerts), `pricing.rs` (versions, proposals,
Spend caps: a monthly budget for comped workspaces and a daily breaker on what g1t pays2d ago	7	notice), `keeper.rs` (sandbox and Workers for Platforms measurements),
	8	`budget.rs` (what g1t pays for itself, and its caps; see
	9	[Spend caps](#spend-caps)).
Git storage hardened, pages in tens of milliseconds, honest security alerts, and costs reconciled daily2d ago	10	Page: sudo Costs & margin (`/costs`).
	11
	12	Several Cloudflare products g1t runs on are new. Artifacts bills
	13	"operations" from 2026-10-14 without defining them (see
	14	[ARTIFACTS.md](ARTIFACTS.md), M1). So nothing here hard-codes a product
	15	list or a unit: every line Cloudflare bills is kept, and how a line maps
	16	to what g1t sells is data you change from sudo, without a deploy.
	17
	18	## Data sources
	19
	20	\| Source \| What \| Where it lands \|
	21	\| --- \| --- \| --- \|
	22	\| Billable usage, `GET /accounts/{account}/billable-usage?from=&to=` \| One row per service per day in FOCUS columns: `ServiceFamilyName`, `ServiceName`, `ChargePeriodStart`, `PricingQuantity`, `ContractedCost` / `BilledCost` / `ListCost`. Every product g1t uses appears once it is used: Workers, Workers for Platforms, D1, KV, R2, Queues, Containers, Durable Objects, Artifacts, Browser Rendering, Workers AI, Vectorize, Cloudflare for SaaS, Email. Inside an included amount the cost is 0. \| `cost_lines`, source `billable_usage` \|
Costs: Cloudflare's count for a pull request's working copy is shared out to its repository's workspace (repos pull_owners)1d ago	23	\| GraphQL `artifactsEventsAdaptiveGroups` \| Artifacts' own count by `date`, `eventType` and `repositoryName`. Operations are `create`, `fork`, `push`, `pull`, `delete`; errors (`rateLimited`, `serverError`, …) are kept but not counted. \| `cost_lines`, source `artifacts_events`; per workspace (from the store key `<workspace>--<repo>`; a pull request's working copy, `pulls--<id>`, is its repository's workspace's, from repos' `pull_owners`) in `own_counts` as `cloudflare_git` \|
Merge branch 'worktree-agent-a633ac0f7f66d419d'1d ago	24	\| GraphQL `aiGatewayRequestsAdaptiveGroups`, filtered to `AI_GATEWAY_ID` \| What AI Gateway priced g1t's own provider traffic at, by `date`, `provider`, `model` and `wholesale`: `count`, `sum.cost` (dollars), `sum.tokensIn`/`tokensOut`/`cacheReadTokens`/`cacheWriteTokens`. Field names checked against Cloudflare's schema (introspection of `AccountAiGatewayRequestsAdaptiveGroups{Sum,Dimensions,Filter_InputObject}`). An adaptive (sampled) dataset: an estimate, close at g1t's volumes. Only g1t's hosted models go through this gateway: a workspace's own provider is called at its own address, never here. \| `cost_lines`, source `ai_gateway`, product `ai_gateway_requests`: per day and model a line `<provider>_<model>` (requests, at the gateway's cost), and at no cost `…__tokens`, `…__cache_read_tokens`, `…__cache_write_tokens`; Cloudflare-billed (unified billing) requests are prefixed `wholesale__`. Mapped to `models` (migration 0036). A re-read day replaces all its gateway lines. \|
Git storage hardened, pages in tens of milliseconds, honest security alerts, and costs reconciled daily2d ago	25	\| The ledger \| Every charge: its cost at the price book's cost, what it was charged at price, what paid for it. \| read, never written \|
	26	\| `pending_usage` \| Month-end meters (git, storage, scans, embeddings, the cache) as they stand. \| snapshotted daily into `pending_days` \|
	27	\| `plan_payments` \| The plan's $20. \| read \|
One operation mapping, owned by repos; billing reads it instead of keeping its own2d ago	28	\| repos `git_operations` \| Operations customers are charged for, per workspace, counted by repos through its `operation_mapping`. \| `own_counts` meter `git_operations` \|
Costs: Cloudflare's subscriptions read from Cloudflare each day, the estimate only until then; sudo's costs split into Costs & margin and Bill & pricing1d ago	29	\| Subscriptions, `GET /accounts/{account}/subscriptions` \| What g1t pays each month whatever it uses (Workers Paid, add-ons): each subscription that is paid, trialing or awaiting payment, at its price over its frequency. Not on the billable-usage bill. Read in the daily run with the bill's token; a failure is logged and the last read stays. \| `cf_subscriptions` (one row) \|
One operation mapping, owned by repos; billing reads it instead of keeping its own2d ago	30	\| repos `artifacts_usage` \| Every raw meter of the git store (`git.fetch`, `git.receive_pack`, `binding.*`, …) per day and workspace, with repos' `operation_mapping`. \| `own_counts` meters `artifacts_<raw meter>`, and `cost_operations` (raw counts × the mapping's `cost_operations`: what g1t expects Cloudflare to bill) \|
Git storage hardened, pages in tens of milliseconds, honest security alerts, and costs reconciled daily2d ago	31
	32	A meter's slug is Cloudflare's name lower-cased with words joined by `_`
	33	and the "(First … included)" note dropped: `Workers for Platforms CPU ms
	34	(First 60M ms are included)` under `Workers` is product `workers`, meter
	35	`workers_for_platforms_cpu_ms`. Several rows of the same day and meter
	36	(regions, tiers) are added together before they are stored.
	37
	38	## Credentials
	39
	40	\| Secret on g1t-billing \| Permissions \| Used for \|
	41	\| --- \| --- \| --- \|
Costs: Cloudflare's subscriptions read from Cloudflare each day, the estimate only until then; sudo's costs split into Costs & margin and Bill & pricing1d ago	42	\| `CLOUDFLARE_BILLING_TOKEN` (optional) \| Account: Billing Read, Account: Account Analytics Read, for the g1t account only \| Reading the bill, the Artifacts events and the subscriptions \|
Billing: AI Gateway's analytics are read with the token that can see them, and a gateway that priced nothing is said21h ago	43	\| `CLOUDFLARE_USAGE_TOKEN` (exists) \| Billing Read, Account Analytics Read, AI Gateway Read \| The keeper (settling runs from the gateway's logs); also the bill when `CLOUDFLARE_BILLING_TOKEN` is not set. AI Gateway's analytics are read with this token first and, if that is refused, with the bill's: Cloudflare answers a token without AI Gateway Read with no rows rather than an error, so the bill's token would read as a gateway that priced nothing \|
Git storage hardened, pages in tens of milliseconds, honest security alerts, and costs reconciled daily2d ago	44
	45	With neither, the daily run reconciles only what g1t counted itself, and
	46	the page says the bill cannot be read. Nothing fails. To set the scoped one:
	47
	48	1. Cloudflare dashboard → My Profile → API Tokens → Create Token → Custom token.
	49	2. Permissions: Account · Billing · Read; Account · Account Analytics · Read.
	50	3. Account resources: Include · the g1t account. No zone permissions.
	51	4. `cd services/billing && npx wrangler secret put CLOUDFLARE_BILLING_TOKEN`.
sudo: the costs run button is named for what it does, the whole nightly analysis1d ago	52	5. In sudo, Costs & margin → Run the analysis now.
Git storage hardened, pages in tens of milliseconds, honest security alerts, and costs reconciled daily2d ago	53
	54	Alerts are emailed through the `EMAIL` binding (Cloudflare Email Sending)
	55	to `COSTS_ALERT_EMAIL` (`hey@flagon.io`). An empty value sends none.
	56
	57	## Schedule
	58
	59	The daily cron (`17 4 * * *`, `keeper::DAILY`) runs, in order:
	60
	61	1. The keeper's measurements (sandbox seconds, app requests and CPU), each
	62	a proposal now, not a direct change.
	63	2. `costs_daily`:
Merge branch 'worktree-agent-a633ac0f7f66d419d'1d ago	64	1. Read the bill, the Artifacts events and AI Gateway's analytics. The first run reads the last
Git storage hardened, pages in tens of milliseconds, honest security alerts, and costs reconciled daily2d ago	65	31 days (GraphQL keeps 31); later runs the last 4, since Cloudflare
	66	restates recent days, or back to the last day read after a gap.
	67	Lines are upserted on `(day, source, product, meter)`, so a re-read
	68	replaces, never adds.
	69	2. g1t's own counts for the same days (replaced per day).
	70	3. Snapshot `pending_usage` into `pending_days`.
sudo: the costs run button is named for what it does, the whole nightly analysis1d ago	71	4. Reconcile the last 31 days (further back after a gap) into
	72	`margin_days` and `workspace_costs`
Git storage hardened, pages in tens of milliseconds, honest security alerts, and costs reconciled daily2d ago	73	(replaced per day).
	74	5. Drift over the last 7 days into `cost_drift`.
	75	6. Unit costs over the last 30 days, proposed to the price book.
	76	7. Apply price versions whose date has come.
	77	8. Open, update and close margin alerts; email new ones.
	78	9. Email owners on the plan about rises to come.
	79
Costs: Cloudflare's subscriptions read from Cloudflare each day, the estimate only until then; sudo's costs split into Costs & margin and Bill & pricing1d ago	80	Run the analysis now at the top of sudo's Costs & margin and Bill & pricing pages
sudo: the costs run button is named for what it does, the whole nightly analysis1d ago	81	(`admin_run_costs`) runs all of step 2 at once, alerts included, with no
	82	need to wait for 04:17 UTC. Running it twice is safe: every step replaces
	83	what it wrote.
Git storage hardened, pages in tens of milliseconds, honest security alerts, and costs reconciled daily2d ago	84
	85	## Reconciliation math
	86
	87	Every Cloudflare line goes to one of g1t's products ("buckets") by
	88	`cost_map`: the row for its product with the longest matching meter
	89	prefix, `*` last. A line no row claims goes to `unmapped`.
	90
	91	\| Bucket \| Cloudflare \| Paid for by (`revenue_map`) \|
	92	\| --- \| --- \| --- \|
	93	\| `sandboxes` \| Containers, Durable Objects compute duration \| `sandbox`, `self_hosted`, `builds` \|
	94	\| `deployments` \| Workers for Platforms \| `deployments` \|
	95	\| `git` \| Artifacts operations (and its events, as counts) \| `git` \|
	96	\| `repo_storage` \| Artifacts storage \| `storage` \|
	97	\| `actions_cache` \| R2 \| `cache` \|
	98	\| `embeddings` \| Workers AI, Vectorize \| `context` \|
	99	\| `security` \| (Workers CPU, under `platform`) \| `security` \|
	100	\| `domains` \| Cloudflare for SaaS \| `domains` \|
Merge branch 'worktree-agent-a633ac0f7f66d419d'1d ago	101	\| `models` \| not Cloudflare: AI Gateway's settled cost on the ledger; AI Gateway's own daily total (`ai_gateway_requests`) beside it, to check it \| every other task (agent runs) \|
Git storage hardened, pages in tens of milliseconds, honest security alerts, and costs reconciled daily2d ago	102	\| `platform` \| Workers, D1, KV, Queues, Email, Browser Rendering, other Durable Objects \| the plan's price \|
	103
	104	For each day and bucket:
	105
Costs: a statement that keeps usage sold, running g1t, subscriptions and what was given away (comped, free use, trial, pool) apart, and says who was paid; free use carries its own cost; the run button says it is running1d ago	106	- Cloudflare cost = Σ the bucket's lines' cost, as billed: after the
	107	included allowances, so a month inside them costs $0 here as on
	108	Cloudflare's Billable usage page. `models` uses the ledger's cost of the
	109	tokens instead; that is paid to the model providers and is not on
Merge branch 'worktree-agent-a633ac0f7f66d419d'1d ago	110	Cloudflare's bill. Its "Cloudflare" column is what AI Gateway priced the
	111	same traffic at, which drift compares with the ledger (below); it is
	112	never added to the cost.
Git storage hardened, pages in tens of milliseconds, honest security alerts, and costs reconciled daily2d ago	113	- Own cost = Σ the ledger's `cost_micros` for the bucket's keys (the
	114	price book's cost when charged), plus month-end deltas. A workspace's own
	115	model provider is no cost to g1t.
	116	- Value = what customers were charged at price: `-amount_micros` plus
	117	what the plan's included usage, a trial, the open-source pool or g1t paid.
	118	g1t's own (comped) workspaces are valued at cost plus the margin.
	119	- Cash = what workspaces paid: `-amount_micros`, and the plan's price.
Merge Stripe Tax, the card fee on card payments, and one free workspace per person14h ago	120	Never tax or card fees: a payment credits the balance, and
	121	`plan_payments`, without them (see [Tax and the card fee](#tax-and-the-card-fee)).
Costs: margin is measured on what was sold; comped workspaces, free periods, the trial and the pools are given away, a budget shown beside it1d ago	122	- Given away = the part of the cost that went on usage g1t paid for
Costs: a statement that keeps usage sold, running g1t, subscriptions and what was given away (comped, free use, trial, pool) apart, and says who was paid; free use carries its own cost; the run button says it is running1d ago	123	itself on purpose, by why:
	124	- comped: all of a comped workspace's cost, every bucket;
	125	- free use: a free period's usage, the overruns g1t covered
	126	(`ledger.given_micros`), and all of a workspace's cost on a day it had
	127	nothing priced (free allowances);
	128	- trial and open-source pool: what `trial_micros` and
Merge branch 'worktree-agent-a633ac0f7f66d419d'1d ago	129	`oss_micros` paid;
	130	- discount: what a discount on an account's custom terms took below
	131	cost plus the margin (`ledger.discount_micros`, see
	132	[Margin floor](#margin-floor)). The usage is valued at its price, so a
Billing: credits with a kind and expiry, discounts instead of comped, and safer charging15h ago	133	discounted sale never reads as margin lost;
	134	- promotional credit and goodwill credit: what credit staff gave
	135	paid for, when it is spent (`given_credit_promotional_micros`,
	136	`given_credit_goodwill_micros`, migration 0038). That usage's charge is
	137	taken out of cash, so it is never money in. A refund is not here: see
	138	[Credits from g1t](#credits-from-g1t).
Costs: a statement that keeps usage sold, running g1t, subscriptions and what was given away (comped, free use, trial, pool) apart, and says who was paid; free use carries its own cost; the run button says it is running1d ago	139
	140	Otherwise a workspace's day is split by those shares of its value at
	141	price, and the same shares of each of its buckets' cost are given, its
	142	part of running g1t included. The Team plan's included usage is sold:
	143	the plan's price paid for it. Stored on `margin_days` (`given_micros`
Merge branch 'worktree-agent-a633ac0f7f66d419d'1d ago	144	and `given_<why>_micros`, `given_discount_micros` from migration 0036)
	145	and `workspace_costs` (`given_micros`). Sudo's Bill & pricing page lists
	146	comped, free use, trial and pool by name; the discount part is in the
	147	total until the page names it (`givenDiscountMicros`).
Git storage hardened, pages in tens of milliseconds, honest security alerts, and costs reconciled daily2d ago	148	- Month-end meters: a day's figure is that day's `pending_days`
	149	snapshot less the day before's, within a month. Their month-end ledger
	150	entries are left out, so nothing is counted twice.
Costs: a statement that keeps usage sold, running g1t, subscriptions and what was given away (comped, free use, trial, pool) apart, and says who was paid; free use carries its own cost; the run button says it is running1d ago	151	- Product margin = (value − cost) / value.
	152	- Sudo's statement keeps apart:
	153	- Usage sold: cash for usage against the cost of the usage buckets
	154	less what was given. Its margin is the headline; at cost plus 20% it
	155	sits near 16.7%.
	156	- Running g1t: the plan's price against `platform` less its given
	157	share.
Costs: Cloudflare's subscriptions read from Cloudflare each day, the estimate only until then; sudo's costs split into Costs & margin and Bill & pricing1d ago	158	- Cloudflare subscriptions: what Cloudflare lists, a month, over
	159	the range (`cf_subscriptions`); until a read has worked,
	160	`CLOUDFLARE_FIXED_MONTHLY_MICROS`, an estimate.
Costs: a statement that keeps usage sold, running g1t, subscriptions and what was given away (comped, free use, trial, pool) apart, and says who was paid; free use carries its own cost; the run button says it is running1d ago	161	- Not mapped: billed, charged for by nothing.
	162	- Given away: by why. A budget, watched under g1t's own spend, never
	163	shown as a loss.
	164	- All in: money in against all of it, with the figure without what
	165	was given beside it. Who g1t paid splits the cost into Cloudflare
	166	and the model providers.
	167
	168	The overall alert is (Σ cash − (Σ cost − Σ given)) / Σ cash.
Git storage hardened, pages in tens of milliseconds, honest security alerts, and costs reconciled daily2d ago	169	- Quantities: where a mapping names an `own_meter`, Cloudflare's
	170	billed quantity of those lines (or, without one, Artifacts' operation
	171	events) against g1t's own count.
	172
	173	Shared costs to workspaces. A bucket's cost is shared in proportion
	174	to, first available: Cloudflare's own per-workspace count
	175	(`cloudflare_<bucket>`, today the Artifacts events by repository), g1t's
Costs: a statement that keeps usage sold, running g1t, subscriptions and what was given away (comped, free use, trial, pool) apart, and says who was paid; free use carries its own cost; the run button says it is running1d ago	176	own count, what its usage cost (so free use carries its own cost), what
	177	each was charged for it. `platform`
Git storage hardened, pages in tens of milliseconds, honest security alerts, and costs reconciled daily2d ago	178	and `unmapped` are shared by each workspace's share of all usage that
	179	day. Shares are whole micros that add up to the bill exactly (largest
	180	remainder).
	181
	182	## Drift (last 7 days)
	183
	184	\| Kind \| When \| What to do \|
	185	\| --- \| --- \| --- \|
One operation mapping, owned by repos; billing reads it instead of keeping its own2d ago	186	\| Count \| g1t's count and Cloudflare's differ by more than the mapping's `drift_percent` (10%) \| Find out what Cloudflare counts: compare its events with `own_counts` `artifacts_*` and `cost_operations`. If it counts more (binding reads, `ls-refs`), either change repos' `operation_mapping` so customers are charged for what Cloudflare counts, or leave it and let the per-unit cost rise (below). \|
Git storage hardened, pages in tens of milliseconds, honest security alerts, and costs reconciled daily2d ago	187	\| Cost \| Cloudflare charged more than `drift_percent` away from the price book's cost of the same usage, with at least `min_daily_cost` \| A price is stale: check the proposals. \|
Billing: AI Gateway's analytics are read with the token that can see them, and a gateway that priced nothing is said21h ago	188	\| Cost, on `models` \| What AI Gateway priced g1t's own provider traffic at over the 7 days, against the ledger's model cost for the same days (billed to g1t: comped, free and trial use included, a workspace's own provider not), more than the `ai_gateway_requests` mapping's `drift_percent` (10%) apart, with at least `min_daily_cost`. A ledger with none of the gateway's cost is drift too, and so is a gateway that priced nothing against a ledger with at least `min_daily_cost` of model cost (no percentage): that is not agreement, it is a token that cannot see AI Gateway, or calls that went around it \| The gateway higher: model calls g1t paid for and charged no one: runs not settled yet (they catch up within the hour), runs with no session, a run started without a billing ticket, or something else on g1t's gateway. The ledger higher: runs that reached a provider without the gateway. The detail adds why the gateway's own figure may be off: prompt-cache read and write tokens (the gateway prices them at its rates for cache tokens, which can lag the provider's; check against the provider's invoice), requests Cloudflare billed itself (unified billing: on Cloudflare's bill, not a provider's), and models with no price. Days are UTC by when a request ran (gateway) and when a charge was entered (ledger), so a run across midnight shifts a little between days; the 7-day sum absorbs it. \|
Merge branch 'worktree-agent-a633ac0f7f66d419d'1d ago	189	\| Unpriced \| Over the 7 days, a model in AI Gateway's analytics with tokens and $0 cost, or runs settled with `runs.gateway_note` (the gateway could not price all of a run) \| The gateway has no price for a model g1t runs: add it in the gateway (custom cost) or route away from it. Until then those runs are charged no less than the sandbox reported (Claude Code's own price table), never $0 silently. \|
Git storage hardened, pages in tens of milliseconds, honest security alerts, and costs reconciled daily2d ago	190	\| Leak \| Cost of at least `min_daily_cost` and nothing charged for it (never for `platform`), or a meter in `unmapped` \| Map the meter (below), or decide it is overhead (`platform`). \|
	191
	192	## Prices: versions, proposals, notice
	193
	194	- `price_versions` holds every price ever, never edited. `prices` is the
	195	version in force. The daily run applies a version once its
	196	`effective_at` has come, and adds the public `price_changes` record.
	197	Ledger entries made from the price book carry `price_version` (the
	198	version ids, comma-separated), so a past statement is always explained
	199	by the prices of its day.
	200	- Proposals come from the keeper (sandbox seconds, app requests and CPU)
	201	and the reconciler (mappings with `scale_to_own`: today git operations).
	202	For git operations: Cloudflare's rate per its own operation (the median
	203	over charged days of cost ÷ quantity) × (Cloudflare's operations ÷ g1t's)
	204	× 1,000. If Cloudflare counts three for each one g1t counts, the per-1,000
	205	price triples. At least 1,000 of g1t's operations are needed.
	206	- Decision (`pricing::decide`): under 2% is noise; more than 4× either way
	207	is suspect and waits for staff; within `auto_apply_percent` (25%) it is
	208	applied on its own when `auto_apply` is on; anything else waits.
	209	- Notice: a fall applies at once. A rise applies `notice_days` (14) after
	210	the decision, and for a monthly meter (git, storage, cache, domains,
	211	embeddings, scans) at the start of the month after that, so no month
	212	is charged at two prices. Owners of workspaces on the plan are emailed
	213	once per rise (`price_notices`), and the pricing page lists it with
	214	"takes effect". Rises are never retroactive; margin protection is for
	215	new usage once notice has run.
	216	- Staff approve or reject in sudo. A rejection needs a note.
	217
	218	## Changing a mapping
	219
Costs: Cloudflare's subscriptions read from Cloudflare each day, the estimate only until then; sudo's costs split into Costs & margin and Bill & pricing1d ago	220	In sudo, Costs & margin → Bill & pricing → Mappings: Cloudflare's product and meter
Git storage hardened, pages in tens of milliseconds, honest security alerts, and costs reconciled daily2d ago	221	prefix (as Cloudflare's lines lists them; `*` for the rest of the
	222	product), g1t's product, and optionally:
	223
	224	- Price meter: the price book meter the line measures.
	225	- Own meter: g1t's count of the same units (`own_counts.meter`).
	226	- Scale to g1t's count: price one of g1t's units at as many of
	227	Cloudflare's as it took (proposals as above).
	228	- Drift threshold.
	229
sudo: the costs run button is named for what it does, the whole nightly analysis1d ago	230	It applies from the next run; Run the analysis now applies it at once.
One operation mapping, owned by repos; billing reads it instead of keeping its own2d ago	231	Every change is in the audit log (`cost_mapping`).
	232
	233	## Which raw meters are operations
	234
	235	There is one mapping, and the repos service owns it: `operation_mapping`
	236	in g1t-repos' database, one row per raw meter with `cost_operations` (how
	237	many operations Cloudflare bills for it) and `billable_operations` (how
	238	many the customer is charged for). Change it with repos'
	239	`set_operation_mapping` RPC (services only), or
	240	`npx wrangler d1 execute g1t-repos --remote` until sudo has a form. A
	241	change applies to counts from then on, never to what was counted.
	242	Billing keeps no mapping of its own: it reads repos' `git_operations`
	243	(already mapped) for what customers are charged, and `artifacts_usage`
	244	(raw counts with the mapping) for `cost_operations`. Migration 0023 drops
	245	the `billable_units` table 0022 made for this, which was never written.
Git storage hardened, pages in tens of milliseconds, honest security alerts, and costs reconciled daily2d ago	246
Models' margin read -14%: usage nothing paid for is valued at price, not $01d ago	247	Charged at price (a product's value) is what each day's usage was paid:
	248	charged to a card or credit, or drawn from the plan's included usage, a
	249	trial, a pool or a gift. Usage nothing paid for, as in a free period, is
	250	valued at price (cost plus the margin), since it was given away at its price
	251	rather than sold for nothing; so are g1t's own workspaces. Runs on a
	252	workspace's own model provider have no cost to g1t. Every daily run
	253	reconciles the whole 31-day window from what is already kept, so a change in
	254	how a day is valued reaches every day sudo shows.
	255
Git storage hardened, pages in tens of milliseconds, honest security alerts, and costs reconciled daily2d ago	256	## Alerts runbook
	257
	258	\| Alert \| Raised when \| First steps \|
	259	\| --- \| --- \| --- \|
	260	\| Margin under the floor \| A product's value against cost under `margin_floor_percent` (10%) for `alert_days` (3) days running, each with at least `min_daily_cost` \| Open the product on Costs & margin. Cost up? Check proposals (approve a rise; it waits out the notice). Value down? A mapping or `revenue_map` may have moved. \|
Costs: margin is measured on what was sold; comped workspaces, free periods, the trial and the pools are given away, a budget shown beside it1d ago	261	\| All of g1t under the floor \| The same for money in against the cost of what was sold: every cost less what was given away (comped workspaces, free periods, the trial, the pools), which is a budget watched in budget.rs. While less than $1 a day comes in, it says the dollars, not a percentage \| Look at which products moved; check `platform` (it has no revenue of its own and grows with traffic). Before launch, with little paid usage, expect it. \|
Git storage hardened, pages in tens of milliseconds, honest security alerts, and costs reconciled daily2d ago	262	\| Leak \| Drift of kind leak \| Map the meter, or decide it is overhead. \|
	263	\| Drift \| Count drift \| See Drift above. Cloudflare's definitions change in beta: ask them in writing ([ARTIFACTS.md](ARTIFACTS.md), §7). \|
Margin alerts measure what is sold, and say dollars when a percentage would mislead1d ago	264	\| Costs more than it pays \| A workspace's shared cost over 30 days above what its usage was priced at (`value_micros`, whoever paid: card, trial, gift or included usage) × `anomaly_factor`, at least `anomaly_floor`; not comped workspaces \| Shown on Reach out as "Costs more than it pays": its usage is priced below what it costs. Abuse (Abuse & fraud page) or a gap in pricing. Not emailed. A trial or gift paying for usage does not raise it. \|
Git storage hardened, pages in tens of milliseconds, honest security alerts, and costs reconciled daily2d ago	265
	266	Alerts close on their own when the condition clears. Open ones are
	267	emailed again weekly. The red bar on every sudo page shows margin,
	268	overall and leak alerts.
	269
Merge branch 'worktree-agent-a633ac0f7f66d419d'1d ago	270	## Model costs
	271
	272	Every model call g1t pays for is an agent run's (the `claude` CLI in the
	273	sandbox, `crates/runner`); the only other model is Workers AI's embeddings,
	274	which are on Cloudflare's bill (`embeddings`). How each reaches the ledger:
	275
	276	\| Call \| Who pays \| Run and session \| Ledger cost \| Settled to the gateway \|
	277	\| --- \| --- \| --- \| --- \| --- \|
	278	\| Agent run through the model proxy (`services/models`) on g1t's hosted models \| g1t \| `runs` row; session `ms_…` in `cf-aig-metadata` \| On finish, the sandbox's figure (Claude Code's `total_cost_usd`, at its own price table, cache tokens included) \| Yes, every 15 minutes \|
	279	\| Agent run straight to the gateway (no `MODELS_URL`) \| g1t \| `runs` row; session `rs_…` in `cf-aig-metadata` (`services/runner` `gatewaySession`) \| As above \| Yes \|
	280	\| Agent run with no gateway (`AI_GATEWAY_ID` empty, self-hosting) \| g1t's key \| `runs` row, no session \| The sandbox's figure \| No: nothing to settle against \|
Merge branch 'model-routing'15h ago	281	\| Agent run on a workspace's own provider \| The workspace \| `runs` row, `billed_to = 'workspace'`, session `ms_…` (the proxy counts its tokens by it) \| No model cost (none to g1t); the agent rate on `agent_tokens_own`, line `<run>/agent-own` \| No; never on g1t's gateway. Closed by the cron's `settle_own_runs`, which charges tokens counted late \|
Merge branch 'worktree-agent-a633ac0f7f66d419d'1d ago	282	\| A sandbox that died before reporting \| g1t \| as its route \| Charged from the gateway when settled \| Yes \|
	283	\| Embeddings (indexing) \| g1t \| none (Workers AI) \| Month-end `context` meter \| No: Cloudflare's bill, `embeddings` bucket \|
	284	\| Embeddings (queries, search and agent context) \| g1t \| none \| None: not charged, by design \| No: in Cloudflare's `embeddings` line, shared out \|
	285
	286	Settling. A run's charge is corrected to what AI Gateway priced its
	287	session's requests at (`settled_cost` in `keeper.rs`). The gateway's
	288	figure is trusted in full: it is not held to the $100 cap on a sandbox's
	289	own report. It is never taken below what the sandbox reported when it
	290	cannot be the whole cost: a request with tokens and no cost (a model the
	291	gateway has no price for) or more logs than are read (2,000). Such a run
	292	keeps `runs.gateway_note`, its correction says why, and it raises the
	293	Unpriced drift. g1t keeps no token rates of its own: the first figure
	294	is Claude Code's, the final one the gateway's.
	295
	296	The daily total. AI Gateway's analytics for the day (above) against
	297	the ledger's model cost is the check that nothing slips past: a model call
	298	with no run, or a run never settled, shows as Cost drift on `models`.
	299	The gateway's per-request `cost` is its estimate from its own price list:
	300	it can be off for prompt-cache tokens, for requests Cloudflare bills
	301	itself, and for models it has no price for. The drift's detail says when
	302	any of those were in the window; the provider's invoice is the last word.
	303
	304	### Margin floor
	305
	306	A sold charge is cost × (1 + `MARGIN_PERCENT`), rounded up (`margin_on`;
	307	`charge_micros` for a sandbox's own report). Terms change it only as
	308	follows (`Terms::discounted`, `Billing::charged`):
	309
	310	- Standard: charged in full.
Billing: credits with a kind and expiry, discounts instead of comped, and safer charging15h ago	311	- A 100% discount (what was "comped"; see [Discounts](#discounts)),
	312	`FREE_WHILE_BUILDING`, the plan's included usage, the trial,
Merge branch 'worktree-agent-a633ac0f7f66d419d'1d ago	313	the open-source pool, and overruns g1t covers: given, and counted by why
	314	(above).
	315	- Custom, with a discount: the discount comes off, and what it took
	316	below cost plus the margin is written on the entry as
	317	`ledger.discount_micros` and counted as given (discount), so the sale
	318	is valued at its price and charged plus given is never under cost plus the
	319	margin. On a settlement correction it moves with the charge (less than
	320	nothing when the charge comes down).
	321	- Goodwill credits (overages) are separate, given by staff on purpose:
	322	their margin part first, the cost only up to the cap, each audited.
	323
	324	Every usage path goes through this: `finish_run`, settling, sandbox time,
	325	features and builds (`charge_feature`), and the month-end meters.
	326
Billing: credits with a kind and expiry, discounts instead of comped, and safer charging15h ago	327	## Discounts
	328
	329	An account's terms are standard, or custom: a discount from 1 to 100%,
	330	a limit of its own, or both, with a reason (the terms' note) and an
	331	optional end date. What used to be "comped" is a 100% discount
	332	(`Terms::full_discount`; migration `0039_discounts_not_comped.sql` moved
	333	every `comped` row to `custom` at 100%, and code reads a leftover `comped`
	334	row as 100%). In SQL, `sales::FULL_DISCOUNT_SQL`.
	335
	336	- Charging. Every charge records what the discount took off it
	337	(`ledger.discount_micros`), 100% included: the entry is charged nothing
	338	and the discount is its whole price. Migration 0039 backfilled the
	339	discount on a 100%-discounted workspace's earlier entries that were
	340	charged nothing and paid by nothing, at cost plus 20%.
	341	- What a 100% discount still does as "comped" did. The plan is on
	342	without its price (`PlanKind::Internal`), trust is `internal` (no limit
	343	on unpaid usage), nothing is invoiced or closed, and g1t's own spend on
	344	it is held to the monthly budget (the terms' limit, at cost; see
	345	[Spend caps](#spend-caps)).
	346	- The statement and Usage. The customer sees every usage line at its
	347	price (`StatementLine.price_micros`: charged, plus what paid for it, plus
	348	the discount), the discount per day or project and in the totals
	349	(`StatementTotals.price_micros`, `discount_micros`, `discount_percent`),
	350	and the CSV has price and discount columns. The Usage page measures at
	351	price for a discounted account (`Usage.discount_micros`,
	352	`discount_percent`).
	353	- Margin. A 100% discount's usage is given away as before, in the
	354	bucket still named `comped` (`given_comped_micros`); sudo calls it
	355	100% discounts. A partial discount's part below cost plus the margin
	356	is `given_discount_micros` (partial discounts). Both are kept apart
	357	from margin on what was sold.
	358	- sudo. The workspace's Terms form takes a discount (None, 25%,
	359	50%, 100%, or Custom, a whole percent; the custom field shows by CSS
	360	alone), a limit, an end date and the reason. Badges and filters say
	361	100% discount or N% off. Each change is audited (`terms`), such as
	362	`standard → 100% discount, monthly budget $150.00: g1t's own`.
	363
	364	## Credits from g1t
	365
	366	Staff give a workspace credit from sudo; the code is
	367	`services/billing/src/grants.rs`, the tables `credit_grants` and
	368	`ledger.credit_kind` (migration `0038_staff_credits.sql`).
	369
	370	### Giving credit
	371
	372	sudo → the workspace (or an enterprise, choosing one of its workspaces) →
	373	Give credit:
	374
	375	1. Amount: $10, $20, $25, $50, $100, or Custom (up to $10,000).
	376	Up to $100 it is one step; over $100, type the workspace's slug as well.
	377	2. Kind: promotional (a welcome, a referral, an event), goodwill (an
	378	apology), or refund (money back for something that went wrong: say what
	379	it refunds and, optionally, the day).
	380	3. Expires: never, 30, 90 or 365 days, or the end of a chosen day
	381	(UTC). A refund never expires.
	382	4. Note: required. It is on the statement and in the owners' email.
	383
	384	The form needs no JavaScript: the fields for one choice (the custom amount,
	385	a refund's details, the expiry date) show by CSS alone, and all show where
	386	`:has()` is not supported. `admin_credit` checks everything again.
	387
	388	A grant is a `crd_…` ledger line (kind `top_up`, so never a payment) with
	389	`credit_kind`, and a `credit_grants` row. The balance rises at once. The
	390	owners are emailed through identity's `notify_owners` (the same path as
	391	limit notices). It is audited as `credit`. The Overages queue's one-click
	392	goodwill credit is a grant too, of kind goodwill.
	393
	394	The inbox is not told: its items are threads on a repository, built from
	395	events, and a credit is a workspace's. That needs a workspace-level inbox
	396	thread first.
	397
	398	### How it is spent
	399
	400	Credit is spent before anything prepaid, the soonest-expiring grant first
	401	(never-expiring last, then the oldest). Given while the workspace owes, it
	402	pays what is owed first, the most recent usage first. What each grant paid
	403	for is never stored: `grants::replay` works it out from the ledger in order,
	404	so the charge paths do not know about credit and the answer is always what
	405	the ledger says. A charge that comes down (a settled run) gives back to
	406	the grant that paid last, while it can still be spent.
	407
	408	### Expiry and revoking
	409
	410	- Expiry. The daily run (`expire_credits`, before the reconciliation)
	411	closes grants past `expires_at` and enters what was left as a negative
	412	`crd…_expired` line; audited as `credit_expired`. A grant past its expiry
	413	pays for nothing even before the run.
	414	- Revoke. sudo → the workspace's Credits (or Credits & refunds)
	415	→ Revoke unused, with why (`admin_revoke_credit`): what is left, as a
	416	`crd…_revoked` line, audited as `credit_revoked`. What was spent stays
	417	spent.
	418
	419	Neither takes the balance below zero: at most the balance, if a refunded
	420	payment left less there than the credit.
	421
	422	### How margin treats them
	423
	424	\| Kind \| When spent \| On the day it was given \|
	425	\| --- \| --- \| --- \|
	426	\| Promotional \| The usage is valued at its price, its charge comes out of cash and is given (`given_credit_promotional_micros`) \| Nothing \|
	427	\| Goodwill \| The same, as `given_credit_goodwill_micros` \| Nothing \|
	428	\| Refund \| Paid for: cash, as any usage \| Its amount (less what was revoked) comes off cash on the day it refunds, shared over that day's paid usage \|
	429
	430	A refund gives back money already collected, so counting it as given would
	431	make it look like a budget g1t chose to spend. Taking it off cash for the
	432	day it refunds says that day's sale was worth less, and counting what it
	433	later pays for as cash keeps money in equal to what was collected. The
	434	refund's day is clamped to the last 30 days, the days the reconciliation
	435	recomputes; an older one lands on the oldest. Refunds never expire, so
	436	cash taken back is never stranded.
	437
	438	What credit paid of a month-end meter (storage, git, scans) is its own
	439	row on the day it was charged, since those meters are reconciled from
	440	snapshots. Sudo's Costs & margin lists promotional and goodwill credit
	441	under Given away, and below the statement the range's credits given,
	442	spent, and refunded. Credits & refunds (`/credits`, `admin_credits`)
	443	lists every grant (by kind, month, staff and workspace) and the last 12
	444	months by kind: given, spent, expired, revoked.
	445
Usage, Billing settings and prepaid AI credit; fixes from the UX audit15h ago	446	### Purchased and scoped credit (prepaid AI)
Billing: credits with a kind and expiry, discounts instead of comped, and safer charging15h ago	447
Usage, Billing settings and prepaid AI credit; fixes from the UX audit15h ago	448	`credit_grants` also has `scope` (`all`, or `models`: model usage only,
	449	`grants::is_model_usage`, which includes the agent rate) and `source`
	450	(`staff`, `purchase`, `promo_code`, `upgrade`), and `CreditKind::Purchased`.
	451	Spending takes credit scoped to models first, then the soonest-expiring. A
	452	grant scoped to models given while the workspace owes pays only what models
	453	owed, never other usage (`replay`). Purchased credit is money paid in: its
	454	ledger line is a payment (Stripe's id, never `crd…`, `credit_kind`
	455	`purchased`, statement kind AI credit), and the usage it pays for stays
	456	money in, never given. Staff cannot give it (`admin_credit` refuses the
	457	kind). Code: `services/billing/src/ai.rs`; migration `0040_ai_credit.sql`.
Billing: credits with a kind and expiry, discounts instead of comped, and safer charging15h ago	458
Usage, Billing settings and prepaid AI credit; fixes from the UX audit15h ago	459	- Buying. `buy_ai_credit` opens Stripe Checkout (payment mode, $10 to
	460	$1,000, a second line Card processing fee when the `card_fee` cost
	461	setting is on, `setup_future_usage=off_session`), recorded in `checkouts`
	462	with `feature = 'ai_credit'`, `amount_cents` the credit and `fee_cents`
	463	the fee. The credit is entered by whichever comes first, the person coming
	464	back (`confirm_ai_credit`, `?ai_credit=cs_…`) or
	465	`checkout.session.completed`: both claim the row `open → paid`, the
	466	grant's id is the session's id (`INSERT OR IGNORE`) and the ledger's
	467	reference is unique, so a payment is credited exactly once. Expires 365
	468	days after purchase (the daily `expire_credits`).
	469	- Owed. AI credit props up the balance but is money only for models, so
	470	what is owed is `max(0, AI credit left − balance)` (`owed_with`; at a
	471	month's close, `models_left_before` the month's start).
	472	- Auto-reload. `ai_reload` (settings; off by default) and `ai_reloads`
	473	(one row per attempt). Each cron run (and a run that would be refused)
	474	calls `reload_now`: below the threshold, it charges the customer's default
	475	payment method off-session for the target less the balance (whole
	476	dollars, at least $10, within the month's maximum), with the idempotency
	477	key `reload/<workspace>/<YYYY-MM>/<n>` (a retry after a crash is the same
	478	PaymentIntent), and grants purchased credit with the PaymentIntent's id. A
	479	decline or a payment needing the person turns auto-reload off
	480	(`failed_at`, `error`), emails the owners and audits `ai_reload_failed`.
	481	- At $0. `start_run` on g1t's models refuses with `payment_required`
	482	when the workspace is on the paid plan (not a 100% discount, not an
	483	enterprise), its included usage is used, and AI credit is $0 or less.
	484	- Upgrade credit. The first time a plan subscription is recorded active
	485	(`features::record`), $5 of promotional credit scoped to models, id
	486	`crd_upgrade_<workspace>`, expiring in a year: given, never revenue. Never
	487	for a workspace with a 100% discount.
	488
	489	### The agent rate and models' markup
	490
	491	Price-book meters (migration 0040, each with versions and a public change):
	492	`agent_models` (per provider dollar; markup 20% until 2026-10-08, then 0,
	493	a fall applied at once), `agent_tokens` ($0 until 2026-10-22, then $0.25 a
	494	million tokens: a rise, after the 14 days' notice, emailed to owners on the
	495	plan by `tell_owners_of_rises`), `gateway_models` (markup 0 during beta),
	496	`card_fee_percent` (29,000 micros per dollar) and `card_fee_fixed`
	497	(300,000). Changing any is a price-book change, never a deploy. `finish_run`
	498	and `settle` charge models at `agent_models`' markup; `charge_agent_rate`
Merge branch 'model-routing'15h ago	499	charges the weighted tokens of the run's session since it was last charged
	500	(`runs.agent_tokens`, the weighted tokens charged so far, claimed with a
	501	compare-and-set), on a line `<run>/agent` (later `<run>/agent/<tokens>`),
	502	with `quantity` the weighted tokens. What it counts is the more of what
	503	`token_usage` holds for the session and what the sandbox reported with its
	504	cost (`finish_run`'s `tokens`, from Claude Code's closing `usage`), each
	505	weighted by kind. Card fee switch: sudo → Costs → Guardrails → *Card fee
Merge Stripe Tax, the card fee on card payments, and one free workspace per person14h ago	506	on card payments* (`cost_settings.card_fee`, `on`/`off`, on by default). It
	507	covers every card payment now, not only AI credit: see
	508	[Tax and the card fee](#tax-and-the-card-fee).
Usage, Billing settings and prepaid AI credit; fixes from the UX audit15h ago	509
Merge branch 'model-routing'15h ago	510	On a workspace's own model key (migration `0041_agent_rate_own_key.sql`):
	511	the run keeps its model session (`runs.session_id`, `ms_…`) so the proxy's
	512	counts reach it, and the agent rate is charged at `agent_tokens_own` ($0 until
	513	2026-10-22, then $0.25 a million, a rise from nothing with its notice), on
	514	`<run>/agent-own` (later `<run>/agent-own/<tokens>`), `billed_to = 'g1t'`
	515	(g1t's own charge: it counts toward limits and spend), named *Agent rate,
	516	your own model key* on Usage and the statement. The model is never charged.
	517	`settle_runs` skips these runs (nothing on g1t's gateway); the cron's
	518	`settle_own_runs` closes them 5 minutes after they finish (3 hours after
	519	they start, for a sandbox that never reported) and charges tokens counted
	520	late. Runs from before have no session and are never charged the rate.
	521
	522	### The agent rate's token weights
	523
	524	How much each kind of token counts toward the agent rate, on g1t's models
	525	and own keys alike, is four price-book meters (migration
	526	`0042_agent_rate_weights.sql`): `agent_token_weight_input`, `_output`,
	527	`_cache_read` and `_cache_write`, each a weight in millionths in
	528	`cost_micros` (1,000,000 counts a token once). All start at 1, which is what
	529	the rate always counted. A cached agent run reads most of its context from
	530	cache (about 90% of its tokens on a typical Sonnet implement run), so the
	531	cache-read weight is the lever: at 1 the rate adds about 44% to such a run's
	532	model cost; at 0.1, far less.
	533
	534	To count cache reads at a tenth:
	535
	536	1. Add the version, effective at once (a lower weight is a fall):
	537
	538	```sql
	539	INSERT INTO price_versions (id, meter, version, cost_micros, markup_percent, effective_at, reason, created_by, created_at)
	540	VALUES ('pv_agent_token_weight_cache_read_2', 'agent_token_weight_cache_read', 2, 100000, 0,
	541	'2026-10-08T00:00:00Z', 'Cache reads count a tenth toward the agent rate', 'staff', '2026-10-08T00:00:00Z');
	542	```
	543
	544	in a migration, or with `npx wrangler d1 execute g1t-billing --remote`
	545	until sudo has a form.
	546	2. The daily run applies it once `effective_at` has come and writes the
	547	public `price_changes` record (Run the analysis now applies it at
	548	once). Raising a weight later is a rise: give it an `effective_at` 14
	549	days out, and owners on the plan are emailed.
	550	3. Check `/pricing`: the agent rate's row lists the weights, and Usage's
	551	agent-rate lines name them.
	552
	553	`weighted` (`ai.rs`) rounds down to a whole token; a weight is never below 0.
	554
Usage, Billing settings and prepaid AI credit; fixes from the UX audit15h ago	555	### Budgets
	556
	557	The owners' spend limit is the budget. `limits.alert_levels` (comma
	558	separated, default every level), `limits.pause_at_limit` (default 1; off,
	559	100% is a warning, never a stop; the trust ceiling still stops work) and
	560	`limits.budget_webhook` (an https address, not g1t's; posted once per alert
	561	level a month by `warn_limits`). `set_budget` sets them, with `keepLimit`
	562	to leave the limit itself alone. A free workspace (trust `new`) has no
	563	spend limit to set: `set_spend_limit` and `set_budget` say so.
	564
Billing: credits with a kind and expiry, discounts instead of comped, and safer charging15h ago	565	### Earlier credits
	566
	567	Migration 0038 makes every earlier `Credit from g1t:` line a goodwill
	568	grant with no expiry: the old form asked for "a refund or goodwill" with
	569	no way to tell them apart, and goodwill never reads as money in.
	570
Mission control shows model usage, yours and the workspace's: tokens, cost, active days, cache share, each day, and the mix1d ago	571	## Token usage
	572
	573	The model proxy (`services/models`) reads Anthropic's `usage` from every
	574	`/v1/messages` answer, streamed or whole, on g1t's models and on a
	575	workspace's own provider alike (OpenAI-shaped providers are translated
	576	first). Count-tokens requests are not answers and are skipped. After the
	577	answer, it calls `record_tokens`, which adds input, output, cache reads and
	578	cache writes to one row per day, workspace, person, session and model in
	579	`token_usage` (migration `0030_token_usage.sql`). The person is who the run
	580	was for, from the model session's `requested_by`; never g1t's agent. A
	581	report that fails is dropped and never affects the answer.
	582
	583	`token_usage` reads a window (42 days by default, 366 at most) for the
	584	workspace or one person: totals, every day's tokens and the active days,
	585	with `costMicros` the window's run charges from the ledger, measured as
Merge branch 'model-routing'15h ago	586	`usage` measures them. Usage's report also lists tokens by model
	587	(`UsageReport.models`). The agent rate is charged on these counts (above);
	588	a run's model is still priced from AI Gateway's logs, never from them.
Mission control shows model usage, yours and the workspace's: tokens, cost, active days, cache share, each day, and the mix1d ago	589
Git storage hardened, pages in tens of milliseconds, honest security alerts, and costs reconciled daily2d ago	590	## Tables (migration `0022_costs_and_margin.sql`)
	591
One operation mapping, owned by repos; billing reads it instead of keeping its own2d ago	592	`cost_lines`, `cost_map`, `revenue_map`, `own_counts`,
Git storage hardened, pages in tens of milliseconds, honest security alerts, and costs reconciled daily2d ago	593	`pending_days`, `margin_days`, `workspace_costs`, `cost_drift`,
	594	`margin_alerts`, `price_versions` (seeded with every current price as
	595	version 1), `price_proposals`, `price_notices`, `cost_settings` (the
	596	guardrails, seeded), the `actions_cache` price, and `ledger.price_version`.
	597	Every create is `IF NOT EXISTS` and every seed `INSERT OR IGNORE`; the one
One operation mapping, owned by repos; billing reads it instead of keeping its own2d ago	598	`ALTER` is applied once by D1's migration tracking. Migration
	599	`0023_one_operation_mapping.sql` drops `billable_units` (see above).
Merge branch 'worktree-agent-a633ac0f7f66d419d'1d ago	600	Migration `0036_model_costs_in_full.sql` adds `ledger.discount_micros`,
	601	`margin_days.given_discount_micros`, `runs.gateway_note` and the
Billing: credits with a kind and expiry, discounts instead of comped, and safer charging15h ago	602	`ai_gateway_requests` → `models` mapping. Migration
	603	`0038_staff_credits.sql` adds `credit_grants`, `ledger.credit_kind` and
	604	`margin_days.given_credit_{promotional,goodwill}_micros`, and backfills
	605	earlier credits (see [Credits from g1t](#credits-from-g1t)).
Spend caps: a monthly budget for comped workspaces and a daily breaker on what g1t pays2d ago	606
	607	## Spend caps
	608
	609	Two caps keep what g1t pays for itself bounded while billing takes no
	610	real money. Both are measured at cost (what Cloudflare and the model
	611	providers charge g1t), never at price. Code: `services/billing/src/budget.rs`.
	612	Page: sudo Costs & margin → g1t's own spend (`/costs#spend`).
	613
	614	### What counts as g1t's own spend
	615
	616	Every charge that settles (an agent run's model cost from `finish_run` or
	617	AI Gateway's settlement, sandbox time from `record_sandbox`, a build from
	618	`charge_feature`) is split by what paid for it and g1t's part is added to
	619	`g1t_spend` (day, bucket, billing account):
	620
	621	\| Bucket \| What \|
	622	\| --- \| --- \|
	623	\| `comped` \| All of a comped account's work (flagon-io) \|
	624	\| `trial` \| The trial credit's share \|
	625	\| `oss` \| The open-source pool's share \|
	626	\| `given` \| A free workspace's overrun past its last bit of trial \|
	627	\| `unpaid` \| Charged, but with no real money behind it: Stripe's test key, or `FREE_WHILE_BUILDING` \|
	628
	629	The plan's included usage and on-demand charges count as revenue only
	630	with live payments; in test mode they are `unpaid`. A workspace's own
	631	model provider costs g1t nothing and is not counted. Month-end meters
	632	(git, storage, scans, embeddings, the cache) are not counted here; the
	633	daily reconciliation covers them. Migration `0024_spend_caps.sql`
	634	backfills the current month from the ledger.
	635
	636	### Caps
	637
	638	\| Cap \| Variable (g1t-billing) \| Default \| At the cap \|
	639	\| --- \| --- \| --- \| --- \|
	640	\| A comped account's monthly budget \| `COMPED_MONTHLY_CEILING_MICROS`, or the account's own Limit in its terms \| $150 a month \| New work on the account (agents, checks, workflows, builds) is refused with "<name>'s monthly budget for g1t's own agents is used up … Staff can raise it in sudo". Runs already going finish; the per-run cap still applies to them. It lifts when staff raise the budget or the month turns (UTC). \|
	641	\| The daily breaker \| `PLATFORM_DAILY_SPEND_CAP_MICROS` \| $75 a day (UTC) \| New agent runs on g1t's hosted models that g1t would pay for are refused until 00:00 UTC. Not paused: agents on the workspace's own model provider, checks and builds, and workspaces paying with live payments on the plan (not given by staff) or an enterprise contract. In test mode that exemption covers no one. \|
	642
Costs: Cloudflare's subscriptions read from Cloudflare each day, the estimate only until then; sudo's costs split into Costs & margin and Bill & pricing1d ago	643	`0` turns either off. Cloudflare's subscriptions are read from Cloudflare
	644	each day (`cf_subscriptions`) and shown on the page only;
	645	`CLOUDFLARE_FIXED_MONTHLY_MICROS` ($30) stands in until a read works.
Spend caps: a monthly budget for comped workspaces and a daily breaker on what g1t pays2d ago	646
	647	The checks are cheap: `reserve` reads today's total (one indexed sum) and,
	648	for a comped account, its month's comped rows. Refusals come back as
	649	`paused`, which the compute gate honours for every plan, internal and
	650	enterprise included (`packages/contracts/src/compute.ts`). The runner tells
	651	billing whether an agent run is on hosted models (`hostedModel` on
	652	`reserve`); a caller that does not say is treated as hosted.
	653
	654	### Alerts
	655
	656	All to `COSTS_ALERT_EMAIL` (`hey@flagon.io`), through the `EMAIL` binding:
	657
	658	- Comped budget: at 50, 75, 90 and 100%, once each per account and month
	659	(`budget_alerts`), checked every 15 minutes. A jump past several levels
	660	sends only the highest.
	661	- Breaker: at once, from the charge that trips it; if that email fails,
	662	the 15-minute cron sends it (`spend_breaker.told_at`).
	663
	664	While the breaker is open or a comped budget is used up, every sudo page
	665	shows a red Spend cap bar.
	666
	667	### Raising and lifting
	668
	669	- Raise a comped budget: sudo → the workspace → Billing → Terms, set
	670	Limit $ to the new monthly budget (blank goes back to the default),
	671	with a note. It applies to the next start; nothing to deploy. The change
	672	is in the account's audit log.
	673	- Lift the breaker for today: sudo → Costs & margin → **g1t's own
	674	spend → Lift for today**, with why (`admin_lift_breaker`; audit action
	675	`breaker_lifted`). It resets by itself at 00:00 UTC.
	676	- Change a default: edit the variable in `services/billing/wrangler.jsonc`
	677	and deploy g1t-billing.
Billing keeps Stripe's view itself: the saved card on the account, missed events replayed every 15 minutes, and the endpoint kept1d ago	678
sudo: reset a test workspace's billing so it starts again as a new customer; refused on a live Stripe key, for comped workspaces and for an enterprise's1d ago	679	## Resetting a test workspace
	680
	681	sudo → the workspace → Reset billing (testing) (`admin_reset_billing`)
	682	returns a workspace used for testing to how a new customer starts. It
	683	deletes the workspace's rows from every billing table: ledger and balance,
	684	plan and plan payments, limits and limit requests, trial grant, invoices,
	685	holds, card checks, alerts sent, price notices, month-end snapshots and
sudo: the billing reset no longer names sandbox_months (dropped in 0015), checked against the migrations by a test; a failed reset says why instead of an error page1d ago	686	closes, storage meters, token usage, spikes, sales records and
sudo: reset a test workspace's billing so it starts again as a new customer; refused on a live Stripe key, for comped workspaces and for an enterprise's1d ago	687	notes, `workspace_costs`, its workspace margin alert and its own billing
	688	account. It keeps `own_counts` (what Cloudflare's bill is compared with)
	689	and the audit log, which records the reset with the note and the number of
	690	rows. The workspace, its members and its repositories are identity's and
	691	repos' and stay.
	692
	693	Billing refuses it while `STRIPE_SECRET_KEY` is a live key, for comped
sudo: a billing reset runs the costs analysis again so every figure is fresh; every submit button shows it is working (CSS only); no margin percentage on less than a cent sold1d ago	694	workspaces, and for a workspace an enterprise pays for. It then runs the
	695	costs analysis again (as Run the analysis now does), so the margin
	696	figures drop the workspace's past usage at once; if that run does not
	697	finish, the page says so and the button does it.
sudo: reset a test workspace's billing so it starts again as a new customer; refused on a live Stripe key, for comped workspaces and for an enterprise's1d ago	698
Billing keeps Stripe's view itself: the saved card on the account, missed events replayed every 15 minutes, and the endpoint kept1d ago	699	## Stripe
	700
	701	Billing keeps what it needs from Stripe so reads never wait on it, and
	702	hears of changes three ways (`webhooks.rs`, `stripe_sync.rs`).
	703
Usage, Billing settings and prepaid AI credit; fixes from the UX audit15h ago	704	API version. Every request sends `Stripe-Version: 2025-02-24.acacia`
	705	(`stripe::STRIPE_VERSION`), the version billing's field reads are written
	706	for; without it Stripe answers at the account's default. Webhook events
	707	come at the destination's own version: billing reads an invoice's
	708	subscription from `subscription` or `parent.subscription_details.subscription`.
	709	Raising the version is a code change: read Stripe's upgrade notes for every
	710	field billing reads.
	711
	712	Failures. No Stripe failure reaches a page as a 500: each payment page
	713	(`page_opened`), the portal, confirmations and plan changes turn it into
	714	`stripe::friendly` (Stripe's own message, never the request or a key), and
	715	log the full error with the workspace. Every payment page is recorded
	716	through one insert (`CHECKOUT_INSERT`), checked against the migrations by
	717	`every_checkout_insert_fills_the_table`, and has an idempotency key
	718	(`page/<purpose>/<workspace>/…/<10-minute bucket>`).
	719
Stripe's webhook secret is a Worker secret, STRIPE_WEBHOOK_SECRET, from a destination made in Stripe's dashboard1d ago	720	The webhook. A destination made in Stripe's dashboard (Developers →
	721	Webhooks → Add destination) with the endpoint URL
	722	`https://api.g1t.sh/stripe/webhook`, in the mode of billing's key (at
	723	launch, make one in live mode and put its secret). Its signing secret
	724	(`whsec_…`: the destination, Signing secret, Reveal) is the billing
	725	Worker's secret:
	726
	727	```sh
	728	cd services/billing && npx wrangler secret put STRIPE_WEBHOOK_SECRET
	729	```
	730
	731	Without it every event is refused with 400. After rolling the secret in
	732	Stripe, put the new one; during the roll Stripe signs with both, so there
	733	is no gap. The event list need not be exact: billing adds any event it
	734	handles that the destination does not send (daily, or Fix destination
	735	in sudo → Stripe), and enables it again if Stripe disabled it. It never
	736	changes the secret. sudo → Stripe shows whether the secret is set, the
	737	destination and its status, missing events, and the latest events.
	738	Events are claimed once each in `stripe_events`; a handler that fails
	739	forgets its claim, and Stripe retries.
Billing keeps Stripe's view itself: the saved card on the account, missed events replayed every 15 minutes, and the endpoint kept1d ago	740
	741	What is kept, and how it stays current
	742
	743	\| Kept \| Where \| Refreshed by \|
	744	\| --- \| --- \| --- \|
	745	\| Saved card (brand, last 4, expiry) \| `accounts.card_`, `card_synced_at` \| `customer.updated`, `payment_method.`, `setup_intent.succeeded`; forgotten when g1t sets a default card, so the next read asks once; the daily pass for cards older than 7 days \|
	746	\| Plans \| `subscriptions` \| `customer.subscription.`, `invoice.`; a read asks Stripe at most hourly once a period is over; the daily pass for rows older than a day \|
	747	\| Payments, refunds, disputes \| ledger, `checkouts`, invoices \| their events \|
	748
	749	Every cron run (every 15 minutes) replays missed events: Stripe's event
	750	list from an hour before `stripe_sync.through`, oldest first, through the
	751	same once-only claim. `through` moves to 5 minutes before now when all were
	752	handled, back to the first failure otherwise, and stays when more than
	753	1,000 events were listed. Claims stuck at `handling` for 10 minutes are
	754	dropped so the replay retries them. The first run reads 3 days back.
	755
Stripe's webhook secret is a Worker secret, STRIPE_WEBHOOK_SECRET, from a destination made in Stripe's dashboard1d ago	756	Daily (`keeper::DAILY`): the destination at billing's address is
	757	enabled again if Stripe disabled it and given any missing event, audited as
	758	`stripe`/`webhook`; then up to 25 stale cards and 25 stale plans are read
	759	again.
Billing keeps Stripe's view itself: the saved card on the account, missed events replayed every 15 minutes, and the endpoint kept1d ago	760
	761	What still calls Stripe on a request: starting a payment page, a plan
	762	or a card check; opening the billing portal; settling a page the person
	763	came back from; renaming a workspace (the customer's name). Nothing a page
	764	view reads.
Teams and CODEOWNERS, labels and milestones, dependency updates, the security suite, and a clearer top bar15h ago	765
Merge Stripe Tax, the card fee on card payments, and one free workspace per person14h ago	766	## Tax and the card fee
	767
	768	Owner decision 2026-10-08. Code: `services/billing/src/tax.rs` (what is
	769	kept, the address hold), `stripe.rs` (every request's tax fields),
	770	`invoices.rs`, `webhooks.rs`, `ai.rs`; migration
	771	`0043_tax_and_card_fees.sql`.
	772
	773	### What Stripe is asked
	774
	775	Every price excludes tax (`tax_behavior=exclusive`) and carries tax code
	776	`txcd_10103001` (software as a service, business use; the card fee too,
	777	since a fee for paying for a sale follows the sale). Fields are valid for
	778	`2025-02-24.acacia`.
	779
	780	\| Request \| Tax \| Card fee \|
	781	\| --- \| --- \| --- \|
	782	\| Checkout, plan or Security (`subscription_fields`) \| `automatic_tax[enabled]`, `billing_address_collection=required`, `tax_id_collection[enabled]`, with a customer `customer_update[address]=auto` and `[name]=auto`; the subscription keeps automatic tax for every renewal \| A second recurring line, Card processing fee \|
	783	\| Subscription on a saved card (`saved_subscription_fields`) \| `automatic_tax[enabled]`; a customer Stripe Tax cannot place fails, and the person is sent to Checkout, which asks for the address \| `items[1]`, the `card_fee` product \|
	784	\| Checkout, prepay (`prepay_fields`) \| As above \| By card only; none by bank transfer \|
	785	\| Checkout, AI credit (`credit_fields`) \| As above \| Its own line \|
	786	\| Checkout, card check (`card_check_fields`) \| Setup mode: nothing charged, nothing taxed. `billing_address_collection=required`, and the card's address is copied onto a customer with none (`fill_address`) \| — \|
	787	\| Auto-reload (`charge_saved`) \| `POST /tax/calculations` first (credit and fee as lines), the PaymentIntent for the total, then `POST /tax/transactions/create_from_calculation` with the PaymentIntent as reference; a refund reverses its share (`create_reversal`, `mode=partial`) \| In the calculation and the amount \|
	788	\| Workspace invoice, month close and threshold (`invoice_workspace`) \| `automatic_tax[enabled]` on the draft; each item `tax_behavior`, `tax_code` \| An item Card processing fee, when the default payment method is a card \|
	789	\| Enterprise invoice (`invoice_enterprise`) \| The same \| Never \|
	790	\| Products (`Stripe::product`) \| Made with `tax_code`; one found without it is given it \| The `card_fee` product, `metadata[g1t]=card_fee` \|
	791
	792	### What is kept
	793
	794	A payment credits the balance with what it paid for, never its tax or fee:
	795	prepay credits the page's `amount_subtotal` less the fee line
	796	(`credit_prepayment`), a workspace invoice `amount_paid − tax − fee`
	797	(`credit_invoice`), AI credit its credit amount, and `plan_payments` the
	798	plan's invoice less its tax and Card processing fee lines
	799	(`stripe::invoice_split`). Each payment's tax and fee are rows in
	800	`tax_and_fees` (`<reference>/tax`, `<reference>/card_fee`; the enterprise's
	801	account id in `workspace` for its invoices), with the PaymentIntent, so a
	802	refund (`charge.refunded`) gives back the balance, tax and fee in
	803	proportion (`tax::refund_split`, negative rows under `refund/<charge>/…`).
	804	`workspace_invoices.fee_micros` and `tax_micros` sit beside each usage
	805	invoice.
	806
	807	- Statement. Tax and Card processing fees are their own lines per
	808	day (`StatementLine.passed_micros`), never in `charged_micros`; totals
	809	`tax_micros`, `card_fee_micros`. The CSV has a row a day for each.
	810	- Margin. Cash never holds them, so margin is untouched. sudo → Costs
	811	shows Tax collected and Card fees passed on for the range
	812	(`OverallMargin.tax_collected_micros`, `card_fees_micros`). Tax is owed to
	813	the authorities: file it from Stripe Tax's reports, never from g1t's.
	814
	815	### No address
	816
	817	Stripe Tax needs a country (in the US a ZIP code, in Canada a postal code
	818	or province: `stripe::address_places_customer`). Before a workspace
	819	invoice is drafted, g1t checks the customer; without an address, or when
	820	Stripe leaves the draft at `requires_location_inputs` or refuses with
	821	`customer_tax_location_invalid`, nothing is charged:
	822	`accounts.tax_address_needed_at` is set, the owners are emailed once
	823	(`notify_owners`), and Billing shows Add a billing address. Saving
	824	Invoice details with an address Stripe Tax can use clears it, as does a
	825	charge that goes through. Work is not stopped for it; the limits still
	826	apply. Auto-reload without an address fails like a declined card (turned
	827	off, owners told). An enterprise's invoice is not sent without an address:
	828	sudo → the enterprise → Invoices → Billing address (`admin_enterprise_address`,
	829	with its tax ID; audited `billing_address`).
	830
	831	### The card fee
	832
	833	`card_fee_cents` grosses Stripe's fee up so the amount paid for is left
	834	after it: `(amount + 30¢) / (1 − 2.9%)`, rounded up; $0.91 on $20, $1.06
	835	on $25. It is worked out on the amount before tax, so Stripe's fee on the
	836	tax itself (a few cents) is g1t's. It is shown before paying: the plan card
	837	and pricing page (`Plan.card_fee_cents`), AI credit (*Card processing fee
	838	$1.06, plus tax where it applies*), Prepay. Never on a bank transfer or an
	839	enterprise's (`send_invoice`) invoice. Meters stay at cost + 20% and models
	840	at the provider's price plus the agent rate (price versions in migration
	841	0040); the fee is passed through, not margin.
	842
	843	### Tax-exempt customers and tax IDs
	844
	845	g1t never sets `tax_exempt`. For a customer who sends an exemption
	846	certificate, set it in Stripe's dashboard (Customers → the customer → Tax
	847	status: Exempt, or Reverse charge); Billing then says so. Tax IDs come
	848	from Checkout (`tax_id_collection`) or Invoice details (`set_billing_details`,
	849	validated against Stripe's types in `details::TAX_ID_TYPES`); Stripe checks
	850	EU VAT numbers and Stripe Tax applies a reverse charge where it should.
	851	Billing shows Stripe's `verification.status`.
	852
	853	### In Stripe's dashboard (not done by g1t)
	854
	855	1. Settings → Tax → Get started: turn on Stripe Tax in live and test
	856	mode.
	857	2. Origin address: Flagon, Inc.'s head office address.
	858	3. Default tax code: Software as a service, business use
	859	(`txcd_10103001`); default tax behavior: exclusive.
	860	4. Registrations: add each jurisdiction where Flagon is registered to
	861	collect (its home state at least; then states as thresholds are
	862	crossed, which Stripe Tax's monitoring flags; the EU's OSS and the UK
	863	if selling there). Stripe collects only where a registration exists.
	864	5. Customer portal: tax ID and address updates are already allowed
	865	(`portal_configuration`).
	866	6. Refund an invoice through a credit note, so its tax is reversed in
	867	Stripe Tax.
	868
	869	## Free workspaces
	870
	871	Owner decision 2026-10-08: one free workspace per person, and a free
	872	workspace adds no one. Billing answers one question, `free_workspaces`
	873	(`credits.rs`): which of the given workspaces are on no paid plan
	874	(`plan_kind_for` is `Free`). The plan, an enterprise's terms and a 100%
	875	discount (flagon-io) count as paid; with payments off nothing is free.
	876	Identity asks it (`services/identity/src/paid.rs`) and refuses with
	877	`payment_required`:
	878
	879	\| Where \| Refused when \|
	880	\| --- \| --- \|
	881	\| `create_workspace` \| The person owns any free workspace. Several from before are kept (grandfathered); none can be added until each is paid for or deleted. \|
	882	\| `add_member`, `invite_member` \| The workspace is free. \|
	883	\| `add_collaborator` \| Someone outside a free workspace (a username who is not a member, or an address). Members' roles are fine. \|
	884	\| `accept_invite`, `respond_repo_invitation` \| The invite's workspace (or repository's) is free now: it waits. A sign-up with such an invite makes the account without joining. \|
	885
	886	`@g1t` is never counted as someone added. If billing cannot be asked, the
	887	change is refused for now ("try again"), never let through. The site says
	888	so first (New workspace, People, a repository's Access, from the same RPC);
	889	the API and MCP pass identity's refusal on as `402`.
	890
Teams and CODEOWNERS, labels and milestones, dependency updates, the security suite, and a clearer top bar15h ago	891	## The Security and quality activation
	892
	893	A second monthly subscription a workspace can hold beside the plan
	894	(`Feature::Security`, `feature = 'security'` in `subscriptions`). It turns
	895	on the security suite's paid features for the workspace's private
	896	repositories: custom secret patterns, validity checks, delegated bypass,
	897	code scanning, dependency review and the security overview. Public
	898	repositories have them free; secret scanning, push protection,
	899	vulnerability alerts and security updates are free everywhere.
	900
	901	- Price. The price book's `security_activation` meter (unit
	902	`workspace-month`, `source` `list`, markup 0): 10,000,000 micros, $10,
	903	from migration `0037_security_activation.sql` with its first
	904	`price_versions` row and a public `price_changes` record. `plan()` and the
	905	`prices` RPC read it (`features::security_plan_at`); if the price book
	906	cannot be read, $10. Nothing in the web app hard-codes it. A change is a
	907	new price version, like any other: noticed on the pricing page and
	908	applied from its `effective_at` to new subscriptions. Subscriptions
	909	already running keep the amount Stripe has until they are changed in
	910	Stripe.
	911	- Stripe. Its own subscription and its own product, tagged
	912	`metadata[g1t]=security` (the plan's is `plan`). Started from the Billing
	913	page with `subscribe` (`feature: security`) on the checked card, or
	914	through Checkout; ended with `cancel_subscription` (`feature: security`)
	915	at the period's end. Its invoices count in `plan_payments` like the
	916	plan's, as paid revenue.
	917	- Who has it. `has_feature(workspace, security)`: on with an active
	918	subscription, with comped terms or as an enterprise's workspace, or when
	919	Stripe is not configured. The plan's allowance (`allowances.plan`) does
	920	not include it. Refusals are `PaymentRequired` with the price from the
	921	price book and the Billing page's address.
	922	- Where it is checked. The security service, on each paid call for a
	923	private repository (`suite::entitled`) and before using custom patterns
	924	in a push (`patterns_for`). When billing cannot be reached it is taken
	925	as off: a paid feature waits rather than running unpaid.
	926	- Fixes. "Fix with g1t" runs g1t's agent, charged as agent usage, never
	927	to the activation.
	928	- Sales figures. MRR in sudo counts `feature = 'plan'` only; the
	929	activation's subscriptions are not in it yet.

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