Commit Graph
11 Commits
Author SHA1 Message Date
Susana Ferreira 0b4095085e fix: report combined member limit in group AI spend (#27589)
## Problem

The organization groups page showed each group's AI budget as the
group's per-member limit, so the total it displayed was effectively
group members × group budget. That ignores per-user budget overrides
charged to the group, so a group where one member has an override
reported a limit that doesn't match what its members can actually spend.

## Changes

- Add `total_spend_limit_micros` to the organization groups AI spend
payload, the combined budget of the members attributed to the group,
with each member's override replacing their share.
- Return `null` for the total when the group has no budget, since its
members spend without a cap.
- Both the organization groups and single group spend endpoints report
the new field, as they share the same query.
- Use the total as the denominator on the groups page AI budget column.

Depends on #27568
2026-07-29 09:16:37 +01:00
Susana Ferreira c3895ff9c0 feat: add CSV export for AI spend data (#27491)
## Description

Adds `GET /api/v2/organizations/{organization}/ai/spend/export`,
returning `text/csv` with per-user, per-group, per-model, per-provider
aggregated AI spend. The data is built from the raw AI Gateway token
usage tables rather than the `ai_user_daily_spend` rollup, but stays
consistent with it: spend is attributed through the token usage's
effective group and bucketed by the token usage `created_at`, the same
values the daily rollup derives from.

The period defaults to the current UTC month, narrowed to the configured
AI Gateway retention window when the month begins before retained data
does. Explicit `period_start`/`period_end` params must be provided
together, are interpreted as UTC, and may span at most 31 days. Unlike
the default period, an explicit period that begins before the retention
window is rejected rather than narrowed. Every row echoes the applied
bounds, so a narrowed window is visible in the export.

The endpoint requires organization-level admin permissions.

## Changes

- Add the `ExportOrganizationAISpend` query aggregating
`aibridge_token_usages` joined to `aibridge_interceptions`, scoped to
the organization via the effective group, resolving the username, group
name, and organization name alongside their IDs.
- Add the `exportOrganizationAISpend` handler and route, gated by the
`aigateway-cost-control` experiment and the `AIBridge` feature,
returning the CSV in a single response.
- Add the `ExportOrganizationAISpend` codersdk client method.
- Require organization-wide `ResourceGroupMember` read, since the export
aggregates every user in the organization. The per-row filter stays in
`dbauthz` as defence in depth.
- Escape leading formula characters in the free-text columns, so a model
or provider name recorded from an intercepted request cannot be
evaluated when the CSV is opened in a spreadsheet.
- Add an index on `aibridge_token_usages (effective_group_id,
created_at)`, which the period and group predicates otherwise cannot
use.

Closes
https://linear.app/codercom/issue/AIGOV-293/add-csv-export-for-ai-spend-data

> [!NOTE]
> Generated by Coder Agents on behalf of @ssncferreira
2026-07-28 10:58:38 +01:00
Susana Ferreira c351280a37 feat: add Prometheus metrics for AI Governance cost control (#27490)
## Description

Adds Prometheus metrics for AI budget cost control, emitted by the
aibridged server under the `cost_control` subsystem (full names are
prefixed `coder_ai_gateway_`).

- `blocked_requests_total` (counter) — labels: `group_id`
- `blocked_users` (gauge) — labels: `group_id`
- `unpriced_requests_total` (counter) — labels: `provider`, `model`
- `enforcement_duration_seconds` (histogram) — labels: `outcome`

## Changes

- Add `GetOverBudgetUsersPerGroup` query (plus dbauthz/dbmetrics/dbmock
wiring) to count over-budget users per effective group.
- Add a background collector that refreshes the `blocked_users` gauge on
an interval, started only when Prometheus is enabled.
- Wire `Metrics` through the aibridged server, coderd API,
`cli/server.go`, and the enterprise AI gateway handler; recording is
nil-safe when metrics are unset.

Closes
https://linear.app/codercom/issue/AIGOV-296/add-prometheus-metrics-for-cost-control

> [!NOTE]
> Initially generated by Claude Opus 4.7, modified and reviewed by
@ssncferreira
2026-07-28 09:22:58 +01:00
Susana Ferreira c23f2c0223 feat: fall back to the Everyone group for AI spend attribution (#27364)
## Description

Previously, a user with no per-user override and no membership in a budgeted group had no effective group, so their AI spend was attributed nowhere and was, therefore, untracked. This change falls back to the organization's Everyone group when no override or group budget applies.

Since every user in an organization is implicitly a member of that org's Everyone group, spend is now attributed and tracked for any user with organization membership. A user with no organization membership resolves to no group, so their daily spend is not incremented and a warning is logged.

The fallback is unlimited, so enforcement is unaffected: only override and group budgets can block requests. For users in multiple organizations, an existing budget on any Everyone group is still chosen by the "highest" policy; when none is budgeted, the fallback prefers the default org, then orders by organization name.

## Changes

- Add `ResolveUserEffectiveGroup` and the `GetUserEveryoneFallbackGroup` query: resolve override → group budget → Everyone group fallback.
- Attribute token-usage spend and the user AI spend endpoint via the fallback, so unbudgeted users resolve to their Everyone group instead of null.
- Update `GetGroupMembersAISpend` to surface the Everyone fallback as the effective group.
- Update `GetHighestGroupAIBudgetByUser` to break ties by organization name then group name, keeping multi-org resolution deterministic and consistent with the fallback.
- For multi-org users with no budget anywhere, the fallback picks the Everyone group deterministically: prefer the default org, then order by organization name.

Closes https://linear.app/codercom/issue/AIGOV-509/fall-back-to-the-everyone-group-for-spend-attribution

> [!NOTE]
> Initially generated by Claude Opus 4.7, modified and reviewed by @ssncferreira
2026-07-23 09:26:25 +01:00
Susana Ferreira a9fdf87a2f feat: add GET /groups/{group}/members/ai/spend (#27130)
## Description

Adds `GET /api/v2/groups/{group}/members/ai/spend?user_ids=...` (also available org-scoped at `/api/v2/organizations/{org}/groups/{groupName}/members/ai/spend`) to return per-member AI spend attributed to a group, along with each member's effective budget group and the applied spend limit when the queried group is their effective budget source.

In the UI, this endpoint is used alongside the existing `/api/v2/groups/{group}/members` endpoint. AI spend data is kept separate from that endpoint so that:

- Different concepts stay on different endpoints: identity (group members) vs. cost control (spend). Cost control is an additional feature layered on top of groups/orgs.
- Callers that don't need spend information don't pay for its computation.

UI flow:

1. Request `/api/v2/groups/{group}/members` → returns the group's members.
2. Request `/api/v2/groups/{group}/members/ai/spend?user_ids=...` with the IDs from step 1.

**Note:** Only current members of the queried group are returned. `spend_limit_micros` and `limit_source` are populated only when the queried group is the member's effective budget source (its own limit or a user override). `effective_group_id` is null when the member's budget resolves to a group in another organization, since an organization is treated as a tenant boundary.

<img width="2880" height="1904" alt="image" src="https://github.com/user-attachments/assets/33ed395d-d1a3-4b46-bb04-c8d3f41c8886" />

## Changes

- Add `codersdk.GroupMembersAISpend` and `GroupMemberAISpend` types, reusing the shared `AISpendPeriodWindow`.
- Add `GetGroupMembersAISpend` SQL query with a dbauthz per-row filter that mirrors `GET /api/v2/groups/{group}/members`.
- Add handler and routes under `/groups/{group}/members/ai/spend` (and the org-scoped alias) with a required `user_ids` query param (cap 100). Callers with more than 100 members are expected to batch across multiple requests.
- Add codersdk client method.
- Tests: dbauthz, raw SQL, endpoint, and role-access.

Closes https://linear.app/codercom/issue/AIGOV-471/backend-group-members-endpoint-with-members-spend

> [!NOTE]
> Initially generated by Claude Opus 4.7, modified and reviewed by @ssncferreira
2026-07-20 13:04:37 +01:00
Susana Ferreira 2adc8f5272 feat: add GET /organizations/{org}/groups/ai/spend (#27123)
## Description

Adds `GET /api/v2/organizations/{org}/groups/ai/spend?group_ids=...` to return per-group AI spend and configured limits for a set of groups in an organization.

In the UI, this endpoint is used alongside the existing `/api/v2/organizations/{org}/groups` endpoint. AI spend data is kept separate from that endpoint so that:

- Different concepts stay on different endpoints: identity (groups) vs. cost control (spend). Cost control is an additional feature layered on top of groups/orgs.
- Callers that don't need spend information don't pay for its computation.

UI flow:

1. Request `/api/v2/organizations/{org}/groups` → returns the organization's groups.
2. Request `/api/v2/organizations/{org}/groups/ai/spend?group_ids=...` with the IDs from step 1.

The groups endpoint from 1) is currently not paginated, but if pagination is added later, this design keeps the two responses in sync. This spend endpoint intentionally takes `group_ids` rather than paginating on its own, since it depends on the group set from step 1. Pagination could be added in the future, especially for Cost Control-focused pages.

<img width="2880" height="1460" alt="image" src="https://github.com/user-attachments/assets/ea83b74d-6a4f-45a6-af2f-1024e019da07" />

## Changes

- Add `codersdk.OrganizationGroupsAISpend` and `OrganizationGroupAISpend` types, plus a shared `AISpendPeriodWindow` embedded in the spend response.
- Add `GetOrganizationGroupsAISpend` SQL query with a dbauthz per-row filter that mirrors `GET /organizations/{org}/groups`.
- Add handler and route under `/organizations/{organization}/groups/ai/spend` with a required `group_ids` query param (cap 100). Callers with more than 100 groups are expected to batch across multiple requests.
- Add codersdk client method.
- Tests: dbauthz, raw SQL, endpoint, and role-access.

Closes https://linear.app/codercom/issue/AIGOV-466/backend-organization-groups-endpoint-with-groups-spend

> [!NOTE]
> Initially generated by Claude Opus 4.7, modified and reviewed by @ssncferreira
2026-07-20 12:54:52 +01:00
Susana Ferreira fcdd029d74 feat: add ai_user_daily_spend table and queries (#26562)
## Description

Adds the spend tracking table and queries needed by [AIGOV-427](https://linear.app/codercom/issue/AIGOV-427/add-post-response-spend-accumulation) (post-response accumulation) and [AIGOV-428](https://linear.app/codercom/issue/AIGOV-428/add-pre-request-budget-enforcement) (pre-request enforcement).

## Changes

- Add `ai_user_daily_spend` table to aggregate per-user, per-effective-group AI spend by UTC day.
- Add `UpsertUserAIDailySpend` and `GetUserAISpendSince` queries.

Closes https://linear.app/codercom/issue/AIGOV-426/add-daily-spend-table-and-queries

> [!NOTE]
> Initially generated by Claude Opus 4.7, modified and reviewed by @ssncferreira
2026-07-02 16:29:25 +01:00
Yevhenii Shcherbina 1cada0649c feat(coderd): resolve effective user AI budget (#26142)
Closes
https://linear.app/codercom/issue/AIGOV-287/add-effective-group-resolution

Implements the effective AI budget resolution from the AI Governance
cost-controls RFC: for a given user, a `user_ai_budget_overrides` row
wins if present, otherwise the deployment budget policy (`highest`)
picks the largest group budget across the user's groups, ties broken
alphabetically.

For now, I keep the logic under `coderd/aibridge/budget`, but that may
change during the implementation of budget enforcement.
2026-06-10 14:01:20 +00:00
Yevhenii Shcherbina 1a91d31793 feat: add user AI budget override endpoints (#25439)
Implements https://linear.app/codercom/issue/AIGOV-285
Follow the structure established in
https://github.com/coder/coder/pull/25203

## Summary

Adds the `user_ai_budget_overrides` table and CRUD API at
`/api/v2/users/{user}/ai/budget`. An override sets a custom per-user
spend cap that supersedes group-budget resolution, attributing spend to
a specific group.

## Schema

```sql
CREATE TABLE user_ai_budget_overrides (
    user_id            UUID        PRIMARY KEY REFERENCES users(id) ON DELETE CASCADE,
    group_id           UUID        NOT NULL REFERENCES groups(id) ON DELETE CASCADE,
    spend_limit_micros BIGINT      NOT NULL CHECK (spend_limit_micros >= 0),
    created_at         TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    updated_at         TIMESTAMPTZ NOT NULL DEFAULT NOW()
);
```

## Membership lifecycle

The membership invariant — a user must be a member of the attributed
group, including when that group is "Everyone" — would naturally be
expressed as a composite FK on `(user_id, group_id) →
group_members_expanded(user_id, group_id)`. PostgreSQL doesn't allow
foreign keys to reference views, so enforcement is split across two
mechanisms:

- **Write-time check.** A CHECK constraint on the table
(`user_ai_budget_overrides_must_be_group_member`) calls a `STABLE`
function `is_group_member(user_id, group_id)` that queries
`group_members_expanded`. The view surfaces both regular group
memberships and the implicit "Everyone" group memberships from
`organization_members`. Any INSERT or UPDATE that violates the predicate
is rejected with a Postgres `check_violation`, which the handler maps to
a 400. `is_group_member` is defined as a general predicate, reusable by
any future table that needs the same check.

- **Cascade on removal.** Two `BEFORE DELETE` triggers handle membership
loss:
- `trigger_delete_user_ai_budget_overrides_on_group_member_delete` on
`group_members` — covers regular group removals (admin action, OIDC
sync).
- `trigger_delete_user_ai_budget_overrides_on_org_member_delete` on
`organization_members` — covers the "Everyone" group, whose membership
lives in `organization_members`.

The single-column FKs on `users(id)` and `groups(id)` remain to cascade
on user or group deletion (those paths don't pass through
`group_members`).

## Authorization

The dbauthz layer gates each operation against the `User` and (for
writes) `Group` resources:

| Operation | User resource  | Group resource |
|-----------|----------------|----------------|
| `GET`     | `ActionRead`   | —              |
| `PUT`     | `ActionUpdate` | `ActionUpdate` |
| `DELETE`  | `ActionUpdate` | `ActionUpdate` |

For `DELETE`, the dbauthz layer fetches the existing override first to
learn the attributed `group_id`, then runs both checks.

### Role matrix

| Role         | GET | PUT | DELETE |
|--------------|-----|-----|--------|
| Owner        |    |    |       |
| UserAdmin    |    |    |       |
| OrgAdmin     |    |    |       |
| OrgUserAdmin |    |    |       |

Internal discussion:
https://codercom.slack.com/archives/C096PFVBZKN/p1779392747885359

## Audit logs
Audit logs will be addressed in a follow-up PR.
2026-05-29 10:08:25 -04:00
Yevhenii Shcherbina 238968cfa0 feat: add per-group AI budget table and endpoints (#25203)
Closes
https://linear.app/codercom/issue/AIGOV-284/add-group-budgets-table-and-crud-api

## Summary

Adds the `group_ai_budgets` table and the following endpoints:

- `GET /api/v2/groups/{group}/ai/budget`
- `PUT /api/v2/groups/{group}/ai/budget`
- `DELETE /api/v2/groups/{group}/ai/budget`

Each group may have at most one budget row. If no row exists, no budget
is enforced.

### Feature gate
  
Added `RequireFeatureMW(FeatureAIBridge)` on the `/ai/budget` sub-route.

## RBAC

Authorization reuses `rbac.ResourceGroup` with the existing
`.InOrganization(...).WithID(...)` scoping model.

The `dbauthz` wrappers load the parent `groups` row and authorize
against it.

No new resource type is introduced. As a result, anyone with
`group:update` permissions (Owner, OrgAdmin, or UserAdmin within the
organization) can manage AI budgets for that group.

## Read access for group members

`database.Group.RBACObject()` grants `policy.ActionRead` to all members
of the group through the group ACL:

```go
func (g Group) RBACObject() rbac.Object {
	return rbac.ResourceGroup.WithID(g.ID).
		InOrg(g.OrganizationID).
		// Group members can read the group.
		WithGroupACL(map[string][]policy.Action{
			g.ID.String(): {
				policy.ActionRead,
			},
		})
}
```

Because the `GET` endpoint authorizes against the same loaded `Group`
object, any group member can call:

```text
GET /api/v2/groups/{group}/ai/budget
```

`PUT` and `DELETE` remain admin-only. The group ACL grants only
`ActionRead`, so write operations continue to require role-based
`group:update` permissions.

## Alternative considered

A dedicated `rbac.ResourceGroupAiBudget` resource would allow budget
management to be separated from general group administration.

We decided not to add that complexity for now.
2026-05-14 15:54:37 -04:00
Yevhenii Shcherbina 4124d1137d feat: add ai_model_prices table (#24932)
# Summary

Implements
https://linear.app/codercom/issue/AIGOV-282/add-ai-model-price-table-and-seed-generator

This PR lays the groundwork for AI Bridge cost controls (per the AI
Governance RFC). It adds the foundation needed for future cost tracking:
a place to store per-model token prices, a way to keep those prices in
sync with upstream pricing data, and a startup mechanism that ensures
every deployment has prices loaded before AI Bridge starts processing
requests.

The price data comes from [models.dev](https://models.dev/), a
community-maintained catalogue of AI provider pricing. A generator
script fetches the latest prices, filters to Anthropic and OpenAI for
now, and produces a seed file checked into the repository.

On every server startup the seed is applied to the database, so new
releases automatically pick up any price corrections that landed since
the previous one. Existing rows are overwritten with the latest prices;
rows for models no longer in the seed are left untouched.

# Batching the AI model price seed: three approaches

Context: at server startup we seed the `ai_model_prices` table from an
embedded JSON price book (~70 rows today, will grow as we add providers,
potentially 4000+).

Each row is:

```text
(provider, model, input_price, output_price, cache_read_price, cache_write_price)
```

Any of the four price columns can be:

- `NULL` → “price unknown for this dimension”
- explicit `0` → “free”

The batch must be an UPSERT so re-running is idempotent and existing
rows pick up new prices.

We considered three implementations.

---

## Approach 1 — Per-row UPSERT in a Go loop

```go
for _, row := range rows {
    if err := db.UpsertAIModelPrice(ctx, database.UpsertAIModelPriceParams{
        Provider:   row.Provider,
        Model:      row.Model,
        InputPrice: nullInt64(row.InputPrice),
        // ...
    }); err != nil {
        return err
    }
}
```

### Pros

- Trivial.
- NULL handling falls out naturally from `sql.NullInt64`.

### Cons

- `N` round-trips per seed.
- With ~70 rows that means ~70 statement executions on every startup,
even inside a transaction.
- Doesn't scale gracefully as the price book grows, potentially 4000+.

---

## Approach 2 — `UNNEST` with parallel arrays

Pass each column as a separate Go slice. Postgres unnests them in
parallel into a virtual table, then `INSERT ... SELECT`.

```sql
INSERT INTO ai_model_prices (
    provider,
    model,
    input_price,
    output_price,
    cache_read_price,
    cache_write_price
)
SELECT
    UNNEST(@providers::text[]),
    UNNEST(@models::text[]),
    NULLIF(UNNEST(@input_prices::bigint[]), -1),
    NULLIF(UNNEST(@output_prices::bigint[]), -1),
    NULLIF(UNNEST(@cache_read_prices::bigint[]), -1),
    NULLIF(UNNEST(@cache_write_prices::bigint[]), -1)
ON CONFLICT (provider, model) DO UPDATE SET
    input_price       = EXCLUDED.input_price,
    output_price      = EXCLUDED.output_price,
    cache_read_price  = EXCLUDED.cache_read_price,
    cache_write_price = EXCLUDED.cache_write_price,
    updated_at        = NOW();
```

Go side: flatten rows into six parallel slices.

Use a sentinel (`-1`) for “missing”, since `lib/pq` can't encode `NULL`
into a `bigint[]` element.

```go
providers := make([]string, len(rows))
models    := make([]string, len(rows))
inputs    := make([]int64,  len(rows))
outputs   := make([]int64,  len(rows))
cacheR    := make([]int64,  len(rows))
cacheW    := make([]int64,  len(rows))

for i, r := range rows {
    providers[i] = r.Provider
    models[i]    = r.Model

    inputs[i] = -1
    if r.InputPrice != nil {
        inputs[i] = *r.InputPrice
    }

    outputs[i] = -1
    if r.OutputPrice != nil {
        outputs[i] = *r.OutputPrice
    }

    cacheR[i] = -1
    if r.CacheReadPrice != nil {
        cacheR[i] = *r.CacheReadPrice
    }

    cacheW[i] = -1
    if r.CacheWritePrice != nil {
        cacheW[i] = *r.CacheWritePrice
    }
}

return db.UpsertAIModelPrices(ctx, database.UpsertAIModelPricesParams{
    Providers:        providers,
    Models:           models,
    InputPrices:      inputs,
    OutputPrices:     outputs,
    CacheReadPrices:  cacheR,
    CacheWritePrices: cacheW,
})
```

### Pros

- Single round-trip.

### Cons

- The generated `sqlc` params become plain `[]int64`, which can't
represent `NULL`.

---

## Approach 3 — `jsonb_array_elements` over a single `@seed::jsonb`
(chosen)

Pass the raw seed JSON as one parameter; let Postgres expand and parse
it.

```sql
INSERT INTO ai_model_prices (
    provider,
    model,
    input_price,
    output_price,
    cache_read_price,
    cache_write_price
)
SELECT
    elem->>'provider',
    elem->>'model',
    (elem->>'input_price')::bigint,
    (elem->>'output_price')::bigint,
    (elem->>'cache_read_price')::bigint,
    (elem->>'cache_write_price')::bigint
FROM jsonb_array_elements(@seed::jsonb) AS elem
ON CONFLICT (provider, model) DO UPDATE SET
    input_price       = EXCLUDED.input_price,
    output_price      = EXCLUDED.output_price,
    cache_read_price  = EXCLUDED.cache_read_price,
    cache_write_price = EXCLUDED.cache_write_price,
    updated_at        = NOW();
```

Go side reduces to:

```go
return db.UpsertAIModelPrices(ctx, seedJSON)
```

### Pros

- Single round-trip.
- NULLs fall out naturally:
  - `(elem->>'cache_write_price')::bigint` becomes `NULL`
  - no sentinels
- The seed is already JSON:
- Existing precedent:
  - `jsonb_array_elements` is already used elsewhere in the codebase

### Cons

- Less type-safe at the SQL boundary than `UNNEST`
- Slightly less standard than `UNNEST`
- Readers need familiarity with:
  - `jsonb_array_elements`
  - `->>` extraction syntax
- Postgres pays JSON parse cost
  - negligible at our scale

---

---

# Decision

We picked Approach 3.

It collapses the round-trips like `UNNEST` does, but without:

- nullable-array workarounds
- sentinel values
2026-05-08 16:45:14 -04:00