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Drop a rule, returning the appid to whatever the built-in denylist says.

DELETE
/v1/admin/apps/{id}/library/rules/{external_id}
curl --request DELETE \
--url 'http://localhost:8080/v1/admin/apps/2489E9AD-2EE2-8E00-8EC9-32D5F69181C0/library/rules/example?external_source=steam' \
--header 'Authorization: Bearer <token>'

Phase 4. Enables and disables NOTHING by itself - the next scan applies the ladder afresh. Takes the same optional ?external_source= (default “steam”); unlike the PUT it does not reject an unknown source with a 400, because an unknown source simply matches no rule and is therefore the 404 it already is. It DOES reject a real {id} that is not a library provider with a 400, like its three siblings. Its 404 deliberately collapses “no such app” and “no such rule” - the caller is deleting something that is not there either way, and separating them would confirm the existence of an app id to a request that named a rule. Audited as app.library.rule.delete.

id
required
string format: uuid
external_id
required
string
/^[1-9][0-9]{0,9}$/

Steam library discovery Phase 4: the provider title id an appid rule applies to - today a Steam appid. VALIDATED AT THE HANDLER AS WELL AS BY THE DATABASE CHECK, deliberately: this table is ADMIN-WRITABLE and takes the value straight from a URL, and the value ends up in STEAM_STARTUP_FLAGS, which the quasar-steam entrypoint word-splits with read -r -a. The handler is what makes a bad value a 400 instead of a 500; the CHECK is the durable guard and the only one of the two that survives an admin editing the row directly later. Bounded below 2^32 in addition to the pattern.

external_source
string
Allowed values: steam

Defaults to ‘steam’. Provider-shaped vocabulary; only ‘steam’ exists today.

Rule deleted.

Malformed or invalid request.

Media typeapplication/json
object
error
required
object
code
required

E.g. validation_failed, unauthorized, forbidden, not_found, conflict, session_quota_exceeded, home_in_use, home_not_provisioned, parent_app_disabled, profile_ineligible, profile_not_launchable_for_app, no_host_available, capacity_exhausted, restart_required, rate_limited, internal. Open string, not an enum: new codes are additive and an unknown one falls through to a client’s generic per-status branch.

string
message
required
string
live_sessions

Present on restart_required.

integer
session_id

Steam library discovery Phase 3, ADDITIVE: present on home_in_use when the guard could name the CONFLICTING live session - the one already holding the home. It is here so the client can offer “go to your running session” with a link instead of a dead-end toast. OMITTED rather than empty when the conflict is known but the session is not, so a client branches on presence and never renders a link to nowhere. Load-bearing once derived tiles exist: the lock is held by the PARENT’s home, so a user who clicks a game tile can be refused because a DIFFERENT app (the Steam launcher, or another game from the same install) is running, and without the session id the refusal reads as a bug. See control-api.md §Derived tiles.

string format: uuid
derived_tiles

Steam library discovery Phase 3, ADDITIVE: present on the 409 conflict from DELETE /v1/apps/{id} when the app has derived tiles and ?delete_derived=true was not sent. A LIST, not a count - the point of the confirmation is that the admin sees what they are about to destroy. Capped; an empty array means the tiles could not be listed, never that there are none.

Array<object>
object
id
required
string format: uuid
name
required
string
Examplegenerated
{
"error": {
"code": "example",
"message": "example",
"live_sessions": 1,
"session_id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0",
"derived_tiles": [
{
"id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0",
"name": "example"
}
]
}
}

Missing/invalid/expired/revoked token.

Media typeapplication/json
object
error
required
object
code
required

E.g. validation_failed, unauthorized, forbidden, not_found, conflict, session_quota_exceeded, home_in_use, home_not_provisioned, parent_app_disabled, profile_ineligible, profile_not_launchable_for_app, no_host_available, capacity_exhausted, restart_required, rate_limited, internal. Open string, not an enum: new codes are additive and an unknown one falls through to a client’s generic per-status branch.

string
message
required
string
live_sessions

Present on restart_required.

integer
session_id

Steam library discovery Phase 3, ADDITIVE: present on home_in_use when the guard could name the CONFLICTING live session - the one already holding the home. It is here so the client can offer “go to your running session” with a link instead of a dead-end toast. OMITTED rather than empty when the conflict is known but the session is not, so a client branches on presence and never renders a link to nowhere. Load-bearing once derived tiles exist: the lock is held by the PARENT’s home, so a user who clicks a game tile can be refused because a DIFFERENT app (the Steam launcher, or another game from the same install) is running, and without the session id the refusal reads as a bug. See control-api.md §Derived tiles.

string format: uuid
derived_tiles

Steam library discovery Phase 3, ADDITIVE: present on the 409 conflict from DELETE /v1/apps/{id} when the app has derived tiles and ?delete_derived=true was not sent. A LIST, not a count - the point of the confirmation is that the admin sees what they are about to destroy. Capped; an empty array means the tiles could not be listed, never that there are none.

Array<object>
object
id
required
string format: uuid
name
required
string
Examplegenerated
{
"error": {
"code": "example",
"message": "example",
"live_sessions": 1,
"session_id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0",
"derived_tiles": [
{
"id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0",
"name": "example"
}
]
}
}

Authenticated but insufficient role / not the owner (precedes resource lookup).

Media typeapplication/json
object
error
required
object
code
required

E.g. validation_failed, unauthorized, forbidden, not_found, conflict, session_quota_exceeded, home_in_use, home_not_provisioned, parent_app_disabled, profile_ineligible, profile_not_launchable_for_app, no_host_available, capacity_exhausted, restart_required, rate_limited, internal. Open string, not an enum: new codes are additive and an unknown one falls through to a client’s generic per-status branch.

string
message
required
string
live_sessions

Present on restart_required.

integer
session_id

Steam library discovery Phase 3, ADDITIVE: present on home_in_use when the guard could name the CONFLICTING live session - the one already holding the home. It is here so the client can offer “go to your running session” with a link instead of a dead-end toast. OMITTED rather than empty when the conflict is known but the session is not, so a client branches on presence and never renders a link to nowhere. Load-bearing once derived tiles exist: the lock is held by the PARENT’s home, so a user who clicks a game tile can be refused because a DIFFERENT app (the Steam launcher, or another game from the same install) is running, and without the session id the refusal reads as a bug. See control-api.md §Derived tiles.

string format: uuid
derived_tiles

Steam library discovery Phase 3, ADDITIVE: present on the 409 conflict from DELETE /v1/apps/{id} when the app has derived tiles and ?delete_derived=true was not sent. A LIST, not a count - the point of the confirmation is that the admin sees what they are about to destroy. Capped; an empty array means the tiles could not be listed, never that there are none.

Array<object>
object
id
required
string format: uuid
name
required
string
Examplegenerated
{
"error": {
"code": "example",
"message": "example",
"live_sessions": 1,
"session_id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0",
"derived_tiles": [
{
"id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0",
"name": "example"
}
]
}
}

No such resource.

Media typeapplication/json
object
error
required
object
code
required

E.g. validation_failed, unauthorized, forbidden, not_found, conflict, session_quota_exceeded, home_in_use, home_not_provisioned, parent_app_disabled, profile_ineligible, profile_not_launchable_for_app, no_host_available, capacity_exhausted, restart_required, rate_limited, internal. Open string, not an enum: new codes are additive and an unknown one falls through to a client’s generic per-status branch.

string
message
required
string
live_sessions

Present on restart_required.

integer
session_id

Steam library discovery Phase 3, ADDITIVE: present on home_in_use when the guard could name the CONFLICTING live session - the one already holding the home. It is here so the client can offer “go to your running session” with a link instead of a dead-end toast. OMITTED rather than empty when the conflict is known but the session is not, so a client branches on presence and never renders a link to nowhere. Load-bearing once derived tiles exist: the lock is held by the PARENT’s home, so a user who clicks a game tile can be refused because a DIFFERENT app (the Steam launcher, or another game from the same install) is running, and without the session id the refusal reads as a bug. See control-api.md §Derived tiles.

string format: uuid
derived_tiles

Steam library discovery Phase 3, ADDITIVE: present on the 409 conflict from DELETE /v1/apps/{id} when the app has derived tiles and ?delete_derived=true was not sent. A LIST, not a count - the point of the confirmation is that the admin sees what they are about to destroy. Capped; an empty array means the tiles could not be listed, never that there are none.

Array<object>
object
id
required
string format: uuid
name
required
string
Examplegenerated
{
"error": {
"code": "example",
"message": "example",
"live_sessions": 1,
"session_id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0",
"derived_tiles": [
{
"id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0",
"name": "example"
}
]
}
}