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Request
MemoryStore
ResourceMeta
MemoryStoreSpec
Response
ResourceMeta
MemoryStoreSpec
MemoryStoreStatus
Condition
Errors
Examples

Reference

Update a memory store

Updates a memory store.

Checked 2026-09-28

Updates a memory store.

Not available yet. Sylphx Agents is declared in the registry but no backend serves it: every call answers 501 with the problem code UNIMPLEMENTED.

Path PATCH https://api.sylphx.com/v1/orgs/acme/projects/shop/envs/production/memory_stores/memory-store
Scope agents:write
Effect write — a successful call changes state.
Collection memory_stores
Query update_mask, allow_missing, validate_only

#Request

Field	Type	What it is
`memory_store`	`MemoryStore`	The memory store to update; `name` identifies it. Required.
`update_mask`	`field_mask`	The fields to write; unset writes every populated field.
`allow_missing`	`bool`	Create the memory store when it does not exist (declarative upsert).
`validate_only`	`bool`	Validate and return the result without writing anything.

#MemoryStore

Field	Type	What it is
`name`	`string`	`orgs/{org}/projects/{project}/envs/{env}/memory_stores/{memory_store}`.
`meta`	`ResourceMeta`	Resource metadata.
`spec`	`MemoryStoreSpec`	Desired state. Required.

#ResourceMeta

Field	Type	What it is
`labels`	`map<string, string>`	Caller-writable, indexed labels (AIP-122 label rules).
`annotations`	`map<string, string>`	Caller-writable, unindexed annotations.
`display_name`	`string`	Caller-writable human-readable name.

#MemoryStoreSpec

Field	Type	What it is
`description`	`string`	What the store is for, shown to agents; at most 1024 characters.
`scope`	`MemoryScope`	Whose memories are kept apart. Required. One of `project`, `agent`, `end_user`.
`retention`	`duration`	Memories older than this since their last update are deleted, 1d to 3650d; unset keeps them until deleted.
`agent_writes`	`bool`	Whether agents write memories themselves after each turn; otherwise only callers write them.

#Response

Field	Type	What it is
`name`	`string`	`orgs/{org}/projects/{project}/envs/{env}/memory_stores/{memory_store}`.
`uid`	`string`	`mst_<cell><ulid>`; never reused. Output only.
`meta`	`ResourceMeta`	Resource metadata.
`spec`	`MemoryStoreSpec`	Desired state. Required.
`status`	`MemoryStoreStatus`	Observed state. Output only.

#ResourceMeta

Field	Type	What it is
`generation`	`int64`	Increases by one on every change to `spec`. Output only.
`etag`	`string`	Strong ETag (AIP-154): changes on any change to spec, status, or metadata. Send it back as `If-Match` or `etag` to make Update and Delete conditional; a mismatch fails with ABORTED / 409 `ETAG_MISMATCH`. Output only.
`create_time`	`timestamp`	When the Resource was created. Output only.
`update_time`	`timestamp`	When the Resource last changed. Output only.
`delete_time`	`timestamp`	Set while the Resource is being deleted. Output only.
`labels`	`map<string, string>`	Caller-writable, indexed labels (AIP-122 label rules).
`annotations`	`map<string, string>`	Caller-writable, unindexed annotations.
`display_name`	`string`	Caller-writable human-readable name.
`creator`	`string`	The principal that created the Resource. Output only.

#MemoryStoreSpec

Field	Type	What it is
`description`	`string`	What the store is for, shown to agents; at most 1024 characters.
`scope`	`MemoryScope`	Whose memories are kept apart. Required. One of `project`, `agent`, `end_user`.
`retention`	`duration`	Memories older than this since their last update are deleted, 1d to 3650d; unset keeps them until deleted.
`agent_writes`	`bool`	Whether agents write memories themselves after each turn; otherwise only callers write them.

#MemoryStoreStatus

Field	Type	What it is
`observed_generation`	`int64`	The generation this status was computed from. Output only.
`conditions`	`Condition[]`	Ready, Reconciling, Stalled. Output only.
`memory_count`	`int64`	The number of memories. Output only.
`stored_bytes`	`int64`	Bytes stored, content and index together; the billed quantity. Output only.

#Condition

Field	Type	What it is
`type`	`string`	The condition type, for example `Ready`.
`status`	`ConditionStatus`	Whether the condition holds. One of `true`, `false`, `unknown`.
`observed_generation`	`int64`	The generation this observation was made against.
`reason`	`string`	A machine-readable UpperCamelCase reason.
`message`	`string`	A customer-safe human-readable message.
`severity`	`Severity`	How severe a FALSE condition is. One of `info`, `warning`, `error`.
`transition_time`	`timestamp`	When `status` last changed.

#Errors

UNAUTHENTICATED — No valid key or token was presented.
PERMISSION_DENIED — The key lacks the method's permission.
RESOURCE_NOT_FOUND — The named Resource does not exist or is not visible.
UNKNOWN_FIELD — The request has a field the schema does not know.
INVALID_FIELD — A field failed validation.
ETAG_MISMATCH — The etag sent does not match the Resource's current etag.
IDEMPOTENCY_KEY_REUSED — An Idempotency-Key was reused with another body.
IDEMPOTENCY_IN_PROGRESS — The first call with this Idempotency-Key is still running.

Every error arrives in the body Errors describes.

#Examples

curl -X PATCH "https://api.sylphx.com/v1/orgs/acme/projects/shop/envs/production/memory_stores/memory-store" \
  -H "Authorization: Bearer $SYLPHX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"name":"orgs/acme/projects/shop/envs/production/memory_stores/memory-store","spec":{"scope":"project"}}'

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