feat: add agent chat spend limiting (backend) (#23071)

Introduces deployment-scoped spend limiting for Coder Agents, enabling
administrators to control LLM costs at global, group, and individual
user levels.

## Changes

- **Database migration (000437)**: `chat_usage_limit_config`
(singleton), `chat_usage_limit_overrides` (per-user),
`chat_usage_limit_group_overrides` (per-group)
- **Single-query limit resolution**: individual override > min(group) >
global default via `ResolveUserChatSpendLimit`
- **Fail-open enforcement** in chatd with documented TOCTOU trade-off
- **Experimental API** under `/api/experimental/chats/usage-limits` for
CRUD on limits
- **`AsChatd` RBAC subject** for narrowly-scoped daemon access (replaces
`AsSystemRestricted`)
- **Generated TypeScript types** for the frontend SDK

## Hierarchy

1. Individual user override (highest)
2. Minimum of group limits
3. Global default
4. Disabled / unlimited

Currency stored as micro-dollars (`1,000,000` = $1.00).

Frontend PR: #23072
This commit is contained in:
Michael Suchacz
2026-03-17 01:24:03 +01:00
committed by GitHub
parent b69631cb35
commit 1031da9738
31 changed files with 3904 additions and 147 deletions
+2 -2
View File
@@ -18,7 +18,7 @@ We track the following resources:
| APIKey<br><i>login, logout, register, create, write, delete</i> | <table><thead><tr><th>Field</th><th>Tracked</th></tr></thead><tbody> | <tr><td>allow_list</td><td>false</td></tr><tr><td>created_at</td><td>true</td></tr><tr><td>expires_at</td><td>true</td></tr><tr><td>hashed_secret</td><td>false</td></tr><tr><td>id</td><td>false</td></tr><tr><td>ip_address</td><td>false</td></tr><tr><td>last_used</td><td>true</td></tr><tr><td>lifetime_seconds</td><td>false</td></tr><tr><td>login_type</td><td>false</td></tr><tr><td>scopes</td><td>false</td></tr><tr><td>token_name</td><td>false</td></tr><tr><td>updated_at</td><td>false</td></tr><tr><td>user_id</td><td>true</td></tr></tbody></table> |
| AiSeatState<br><i>create</i> | <table><thead><tr><th>Field</th><th>Tracked</th></tr></thead><tbody> | <tr><td>first_used_at</td><td>true</td></tr><tr><td>last_event_description</td><td>true</td></tr><tr><td>last_event_type</td><td>true</td></tr><tr><td>last_used_at</td><td>false</td></tr><tr><td>updated_at</td><td>false</td></tr><tr><td>user_id</td><td>true</td></tr></tbody></table> |
| AuditOAuthConvertState<br><i></i> | <table><thead><tr><th>Field</th><th>Tracked</th></tr></thead><tbody> | <tr><td>created_at</td><td>true</td></tr><tr><td>expires_at</td><td>true</td></tr><tr><td>from_login_type</td><td>true</td></tr><tr><td>to_login_type</td><td>true</td></tr><tr><td>user_id</td><td>true</td></tr></tbody></table> |
| Group<br><i>create, write, delete</i> | <table><thead><tr><th>Field</th><th>Tracked</th></tr></thead><tbody> | <tr><td>avatar_url</td><td>true</td></tr><tr><td>display_name</td><td>true</td></tr><tr><td>id</td><td>true</td></tr><tr><td>members</td><td>true</td></tr><tr><td>name</td><td>true</td></tr><tr><td>organization_id</td><td>false</td></tr><tr><td>quota_allowance</td><td>true</td></tr><tr><td>source</td><td>false</td></tr></tbody></table> |
| Group<br><i>create, write, delete</i> | <table><thead><tr><th>Field</th><th>Tracked</th></tr></thead><tbody> | <tr><td>avatar_url</td><td>true</td></tr><tr><td>chat_spend_limit_micros</td><td>true</td></tr><tr><td>display_name</td><td>true</td></tr><tr><td>id</td><td>true</td></tr><tr><td>members</td><td>true</td></tr><tr><td>name</td><td>true</td></tr><tr><td>organization_id</td><td>false</td></tr><tr><td>quota_allowance</td><td>true</td></tr><tr><td>source</td><td>false</td></tr></tbody></table> |
| AuditableOrganizationMember<br><i></i> | <table><thead><tr><th>Field</th><th>Tracked</th></tr></thead><tbody> | <tr><td>created_at</td><td>true</td></tr><tr><td>organization_id</td><td>false</td></tr><tr><td>roles</td><td>true</td></tr><tr><td>updated_at</td><td>true</td></tr><tr><td>user_id</td><td>true</td></tr><tr><td>username</td><td>true</td></tr></tbody></table> |
| CustomRole<br><i></i> | <table><thead><tr><th>Field</th><th>Tracked</th></tr></thead><tbody> | <tr><td>created_at</td><td>false</td></tr><tr><td>display_name</td><td>true</td></tr><tr><td>id</td><td>false</td></tr><tr><td>is_system</td><td>false</td></tr><tr><td>member_permissions</td><td>true</td></tr><tr><td>name</td><td>true</td></tr><tr><td>org_permissions</td><td>true</td></tr><tr><td>organization_id</td><td>false</td></tr><tr><td>site_permissions</td><td>true</td></tr><tr><td>updated_at</td><td>false</td></tr><tr><td>user_permissions</td><td>true</td></tr></tbody></table> |
| GitSSHKey<br><i>create</i> | <table><thead><tr><th>Field</th><th>Tracked</th></tr></thead><tbody> | <tr><td>created_at</td><td>false</td></tr><tr><td>private_key</td><td>true</td></tr><tr><td>public_key</td><td>true</td></tr><tr><td>updated_at</td><td>false</td></tr><tr><td>user_id</td><td>true</td></tr></tbody></table> |
@@ -36,7 +36,7 @@ We track the following resources:
| TaskTable<br><i></i> | <table><thead><tr><th>Field</th><th>Tracked</th></tr></thead><tbody> | <tr><td>created_at</td><td>false</td></tr><tr><td>deleted_at</td><td>false</td></tr><tr><td>display_name</td><td>true</td></tr><tr><td>id</td><td>true</td></tr><tr><td>name</td><td>true</td></tr><tr><td>organization_id</td><td>false</td></tr><tr><td>owner_id</td><td>true</td></tr><tr><td>prompt</td><td>true</td></tr><tr><td>template_parameters</td><td>true</td></tr><tr><td>template_version_id</td><td>true</td></tr><tr><td>workspace_id</td><td>true</td></tr></tbody></table> |
| Template<br><i>write, delete</i> | <table><thead><tr><th>Field</th><th>Tracked</th></tr></thead><tbody> | <tr><td>active_version_id</td><td>true</td></tr><tr><td>activity_bump</td><td>true</td></tr><tr><td>allow_user_autostart</td><td>true</td></tr><tr><td>allow_user_autostop</td><td>true</td></tr><tr><td>allow_user_cancel_workspace_jobs</td><td>true</td></tr><tr><td>autostart_block_days_of_week</td><td>true</td></tr><tr><td>autostop_requirement_days_of_week</td><td>true</td></tr><tr><td>autostop_requirement_weeks</td><td>true</td></tr><tr><td>cors_behavior</td><td>true</td></tr><tr><td>created_at</td><td>false</td></tr><tr><td>created_by</td><td>true</td></tr><tr><td>created_by_avatar_url</td><td>false</td></tr><tr><td>created_by_name</td><td>false</td></tr><tr><td>created_by_username</td><td>false</td></tr><tr><td>default_ttl</td><td>true</td></tr><tr><td>deleted</td><td>false</td></tr><tr><td>deprecated</td><td>true</td></tr><tr><td>description</td><td>true</td></tr><tr><td>disable_module_cache</td><td>true</td></tr><tr><td>display_name</td><td>true</td></tr><tr><td>failure_ttl</td><td>true</td></tr><tr><td>group_acl</td><td>true</td></tr><tr><td>icon</td><td>true</td></tr><tr><td>id</td><td>true</td></tr><tr><td>max_port_sharing_level</td><td>true</td></tr><tr><td>name</td><td>true</td></tr><tr><td>organization_display_name</td><td>false</td></tr><tr><td>organization_icon</td><td>false</td></tr><tr><td>organization_id</td><td>false</td></tr><tr><td>organization_name</td><td>false</td></tr><tr><td>provisioner</td><td>true</td></tr><tr><td>require_active_version</td><td>true</td></tr><tr><td>time_til_dormant</td><td>true</td></tr><tr><td>time_til_dormant_autodelete</td><td>true</td></tr><tr><td>updated_at</td><td>false</td></tr><tr><td>use_classic_parameter_flow</td><td>true</td></tr><tr><td>user_acl</td><td>true</td></tr></tbody></table> |
| TemplateVersion<br><i>create, write</i> | <table><thead><tr><th>Field</th><th>Tracked</th></tr></thead><tbody> | <tr><td>archived</td><td>true</td></tr><tr><td>created_at</td><td>false</td></tr><tr><td>created_by</td><td>true</td></tr><tr><td>created_by_avatar_url</td><td>false</td></tr><tr><td>created_by_name</td><td>false</td></tr><tr><td>created_by_username</td><td>false</td></tr><tr><td>external_auth_providers</td><td>false</td></tr><tr><td>has_ai_task</td><td>false</td></tr><tr><td>has_external_agent</td><td>false</td></tr><tr><td>id</td><td>true</td></tr><tr><td>job_id</td><td>false</td></tr><tr><td>message</td><td>false</td></tr><tr><td>name</td><td>true</td></tr><tr><td>organization_id</td><td>false</td></tr><tr><td>readme</td><td>true</td></tr><tr><td>source_example_id</td><td>false</td></tr><tr><td>template_id</td><td>true</td></tr><tr><td>updated_at</td><td>false</td></tr></tbody></table> |
| User<br><i>create, write, delete</i> | <table><thead><tr><th>Field</th><th>Tracked</th></tr></thead><tbody> | <tr><td>avatar_url</td><td>false</td></tr><tr><td>created_at</td><td>false</td></tr><tr><td>deleted</td><td>true</td></tr><tr><td>email</td><td>true</td></tr><tr><td>github_com_user_id</td><td>false</td></tr><tr><td>hashed_one_time_passcode</td><td>false</td></tr><tr><td>hashed_password</td><td>true</td></tr><tr><td>id</td><td>true</td></tr><tr><td>is_service_account</td><td>true</td></tr><tr><td>is_system</td><td>true</td></tr><tr><td>last_seen_at</td><td>false</td></tr><tr><td>login_type</td><td>true</td></tr><tr><td>name</td><td>true</td></tr><tr><td>one_time_passcode_expires_at</td><td>true</td></tr><tr><td>quiet_hours_schedule</td><td>true</td></tr><tr><td>rbac_roles</td><td>true</td></tr><tr><td>status</td><td>true</td></tr><tr><td>updated_at</td><td>false</td></tr><tr><td>username</td><td>true</td></tr></tbody></table> |
| User<br><i>create, write, delete</i> | <table><thead><tr><th>Field</th><th>Tracked</th></tr></thead><tbody> | <tr><td>avatar_url</td><td>false</td></tr><tr><td>chat_spend_limit_micros</td><td>true</td></tr><tr><td>created_at</td><td>false</td></tr><tr><td>deleted</td><td>true</td></tr><tr><td>email</td><td>true</td></tr><tr><td>github_com_user_id</td><td>false</td></tr><tr><td>hashed_one_time_passcode</td><td>false</td></tr><tr><td>hashed_password</td><td>true</td></tr><tr><td>id</td><td>true</td></tr><tr><td>is_service_account</td><td>true</td></tr><tr><td>is_system</td><td>true</td></tr><tr><td>last_seen_at</td><td>false</td></tr><tr><td>login_type</td><td>true</td></tr><tr><td>name</td><td>true</td></tr><tr><td>one_time_passcode_expires_at</td><td>true</td></tr><tr><td>quiet_hours_schedule</td><td>true</td></tr><tr><td>rbac_roles</td><td>true</td></tr><tr><td>status</td><td>true</td></tr><tr><td>updated_at</td><td>false</td></tr><tr><td>username</td><td>true</td></tr></tbody></table> |
| WorkspaceBuild<br><i>start, stop</i> | <table><thead><tr><th>Field</th><th>Tracked</th></tr></thead><tbody> | <tr><td>build_number</td><td>false</td></tr><tr><td>created_at</td><td>false</td></tr><tr><td>daily_cost</td><td>false</td></tr><tr><td>deadline</td><td>false</td></tr><tr><td>has_ai_task</td><td>false</td></tr><tr><td>has_external_agent</td><td>false</td></tr><tr><td>id</td><td>false</td></tr><tr><td>initiator_by_avatar_url</td><td>false</td></tr><tr><td>initiator_by_name</td><td>false</td></tr><tr><td>initiator_by_username</td><td>false</td></tr><tr><td>initiator_id</td><td>false</td></tr><tr><td>job_id</td><td>false</td></tr><tr><td>max_deadline</td><td>false</td></tr><tr><td>reason</td><td>false</td></tr><tr><td>template_version_id</td><td>true</td></tr><tr><td>template_version_preset_id</td><td>false</td></tr><tr><td>transition</td><td>false</td></tr><tr><td>updated_at</td><td>false</td></tr><tr><td>workspace_id</td><td>false</td></tr></tbody></table> |
| WorkspaceProxy<br><i></i> | <table><thead><tr><th>Field</th><th>Tracked</th></tr></thead><tbody> | <tr><td>created_at</td><td>true</td></tr><tr><td>deleted</td><td>false</td></tr><tr><td>derp_enabled</td><td>true</td></tr><tr><td>derp_only</td><td>true</td></tr><tr><td>display_name</td><td>true</td></tr><tr><td>icon</td><td>true</td></tr><tr><td>id</td><td>true</td></tr><tr><td>name</td><td>true</td></tr><tr><td>region_id</td><td>true</td></tr><tr><td>token_hashed_secret</td><td>true</td></tr><tr><td>updated_at</td><td>false</td></tr><tr><td>url</td><td>true</td></tr><tr><td>version</td><td>true</td></tr><tr><td>wildcard_hostname</td><td>true</td></tr></tbody></table> |
| WorkspaceTable<br><i></i> | <table><thead><tr><th>Field</th><th>Tracked</th></tr></thead><tbody> | <tr><td>automatic_updates</td><td>true</td></tr><tr><td>autostart_schedule</td><td>true</td></tr><tr><td>created_at</td><td>false</td></tr><tr><td>deleted</td><td>false</td></tr><tr><td>deleting_at</td><td>true</td></tr><tr><td>dormant_at</td><td>true</td></tr><tr><td>favorite</td><td>true</td></tr><tr><td>group_acl</td><td>true</td></tr><tr><td>id</td><td>true</td></tr><tr><td>last_used_at</td><td>false</td></tr><tr><td>name</td><td>true</td></tr><tr><td>next_start_at</td><td>true</td></tr><tr><td>organization_id</td><td>false</td></tr><tr><td>owner_id</td><td>true</td></tr><tr><td>template_id</td><td>true</td></tr><tr><td>ttl</td><td>true</td></tr><tr><td>updated_at</td><td>false</td></tr><tr><td>user_acl</td><td>true</td></tr></tbody></table> |