Get Knowledge Item

GET /knowledge-items/{item_id}

One item, its placement and its provenance. The embedding is never returned.

Role floor

Requires viewer or above. The floor is a minimum, not a grant: scope filtering still applies on top of it, and a resource in another tenant answers 404 rather than 403.

Parameters

Name	In	Type		Notes
item_id	path	string (uuid)	required	—
viewer_agent_id	query	string (uuid) | null	optional	—

Responses

Status	Description	Body
200	Successful Response	KnowledgeItemDetail
422	Validation Error	HTTPValidationError

Only the success paths are declared

Any operation may also answer any status in the error catalogue, and every failure body is the platform envelope — including the 422 this document types as HTTPValidationError.

Example

curl -X GET https://your-deployment.example.com/knowledge-items/{item_id} \
  -H "Authorization: Bearer $COBRE_TOKEN"

Response — KnowledgeItemDetail

Field	Type		Notes
id	string (uuid)	required	—
kb_id	string (uuid) | null	required, nullable	—
item_scope	kb | agent | subject | conversation	required	—
kind	fact | rule | open_question | hub	required	—
title	string | null	required, nullable	—
content	string	required	—
curation_state	pending | reviewed | promoted | superseded | retired	required	—
importance	low | normal | high	required	—
confidence	string | null	required, nullable	—
origin	human | agent | import | derived	required	—
use_count	integer	required	—
last_used_at	string (date-time) | null	required, nullable	—
embedding_model	string | null	required, nullable	—
is_structural	boolean	required	—
valid_from	string (date-time)	required	—
valid_until	string (date-time) | null	required, nullable	—
created_at	string (date-time)	required	—
updated_at	string (date-time)	required	—
agent_id	string (uuid) | null	required, nullable	—
persona_id	string (uuid) | null	required, nullable	—
session_id	string (uuid) | null	required, nullable	—
subject_kind	user | guest | null	required, nullable	—
subject_id	string | null	required, nullable	—
content_hash	string	required	—
tags	string[]	required	—
attributes	object	required	—
provenance	object	required	—
curated_at	string (date-time) | null	required, nullable	—
reviewed_at	string (date-time) | null	required, nullable	—
last_maintained_at	string (date-time) | null	required, nullable	—