API reference · Trust Fabric

Change a tool rule (its version increments)

PUT /fabric/tool-rules/{rule_id}

Last reviewed 2026-11-06

PUT /fabric/tool-rules/{rule_id}

Parameters

Name	In	Type	Meaning
`rule_id` required	path	string

Request body

ToolRuleRequest (required)

Field	Type	Meaning
`name` required	string
`effect` required	string	allow \| deny \| require_approval \| modify (AARM MODIFY: the call proceeds with the transform applied; other rules judge the result)
`priority`	integer	lower runs first; first match wins default `100`
`match_path`	string or null	glob, e.g. /tools/payments/*
`match_service`	string or null
`match_agent`	string or null	glob over agent_id
`conditions`	array of `ToolRuleCondition`
`transform`	array of `ToolRuleTransform`	modify rules only: steps applied in order

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 onlyrule_id pathRequest 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 PUT 'https://cainstudio.online/fabric/tool-rules/<rule_id>' \
  -H "X-API-Key: $CAIN_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{"name": "name", "effect": "effect", "priority": 100}'

import json, os, urllib.request

req = urllib.request.Request('https://cainstudio.online/fabric/tool-rules/<rule_id>', method='PUT',
    headers={"X-API-Key": os.environ["CAIN_API_KEY"], "Content-Type": "application/json"},
    data=json.dumps({
      "name": "name",
      "effect": "effect",
      "priority": 100
    }).encode())
with urllib.request.urlopen(req, timeout=60) as r:
    print(r.status, json.load(r))

const res = await fetch("https://cainstudio.online/fabric/tool-rules/<rule_id>", {
  method: "PUT",
  headers: {
    "X-API-Key": process.env.CAIN_API_KEY!,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "name": "name",
    "effect": "effect",
    "priority": 100
  }),
});
console.log(res.status, await res.json());

Schemas used

Error · HTTPValidationError · ToolRuleCondition · ToolRuleRequest · ToolRuleTransform · ValidationError

← Which rule would decide this call? (no evidence, no quota) · all 81 Trust Fabric calls · Retire a tool rule (kept in history, never deleted) →

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