API reference · CAIN Context

Audit Context

POST /fabric/context/context/audit

Last reviewed 2026-11-06

POST /fabric/context/context/audit

Audit an agent's live context window for health issues.

Checks: - Redundancy: near-duplicate items via TF cosine similarity - Staleness: items not referenced in N steps - Omission: references not present in context

Returns health score 0-1 and detailed findings.

Request body

ContextAuditRequest (required)

Field	Type	Meaning
`items` required	array of `ContextItem`	min items `1` · max items `500`
`current_step`	integer	default `0`
`references`	array of string
`staleness_threshold_steps`	integer	min `1.0` · default `20`

Responses

Status	Meaning	Body
`200`	Successful Response	JSON
`401`	The X-API-Key header is missing, or the key is unknown, revoked or replaced.	`Error`
`403`	The key is valid but may not do this (for example an agent key approving its own held action).	`Error`
`422`	Validation Error	`HTTPValidationError`
`429`	Rate limit or monthly quota reached. Wait for the number of seconds in Retry-After when it is sent.	`Error`

Try it

Your API key X-API-Key Remember the key in this tab onlyRequest body application/json

This call changes data in the account the key belongs to.

The request goes from your browser straight to this site. Your key is not stored unless you tick the box, and then only in this tab's session storage.

Code

curl -sS -X POST 'https://cainstudio.online/fabric/context/context/audit' \
  -H "X-API-Key: $CAIN_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{"items": [{"id": "id", "text": "text", "category": "uncategorized", "added_at_step": 0}], "current_step": 0, "staleness_threshold_steps": 20}'

import json, os, urllib.request

req = urllib.request.Request('https://cainstudio.online/fabric/context/context/audit', method='POST',
    headers={"X-API-Key": os.environ["CAIN_API_KEY"], "Content-Type": "application/json"},
    data=json.dumps({
      "items": [
        {
          "id": "id",
          "text": "text",
          "category": "uncategorized",
          "added_at_step": 0
        }
      ],
      "current_step": 0,
      "staleness_threshold_steps": 20
    }).encode())
with urllib.request.urlopen(req, timeout=60) as r:
    print(r.status, json.load(r))

const res = await fetch("https://cainstudio.online/fabric/context/context/audit", {
  method: "POST",
  headers: {
    "X-API-Key": process.env.CAIN_API_KEY!,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "items": [
      {
        "id": "id",
        "text": "text",
        "category": "uncategorized",
        "added_at_step": 0
      }
    ],
    "current_step": 0,
    "staleness_threshold_steps": 20
  }),
});
console.log(res.status, await res.json());

Schemas used

ContextAuditRequest · ContextItem · Error · HTTPValidationError · ValidationError

all 8 CAIN Context calls · Get Context Audit →

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