Assess a Session for skill worthiness

curl --request GET \
  --url https://api.checkfu.com/v1/skill-proposals/suggestions/{session} \
  --header 'Authorization: Bearer <token>' \
  --header 'checkfu-version: <checkfu-version>'

import requests

url = "https://api.checkfu.com/v1/skill-proposals/suggestions/{session}"

headers = {
    "checkfu-version": "<checkfu-version>",
    "Authorization": "Bearer <token>"
}

response = requests.get(url, headers=headers)

print(response.text)

const options = {
  method: 'GET',
  headers: {'checkfu-version': '<checkfu-version>', Authorization: 'Bearer <token>'}
};

fetch('https://api.checkfu.com/v1/skill-proposals/suggestions/{session}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.checkfu.com/v1/skill-proposals/suggestions/{session}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "checkfu-version: <checkfu-version>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.checkfu.com/v1/skill-proposals/suggestions/{session}"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("checkfu-version", "<checkfu-version>")
	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://api.checkfu.com/v1/skill-proposals/suggestions/{session}")
  .header("checkfu-version", "<checkfu-version>")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.checkfu.com/v1/skill-proposals/suggestions/{session}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["checkfu-version"] = '<checkfu-version>'
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body

{
  "session": "<string>",
  "skill_worthy": true,
  "reasons": [
    "many_tool_calls"
  ],
  "signals": {
    "tool_use_count": 1,
    "failure_then_success": true
  }
}

{
  "error": {
    "type": "validation.malformed",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#validation-malformed"
  }
}

{
  "error": {
    "type": "auth.invalid_key",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#auth-invalid-key"
  }
}

{
  "error": {
    "type": "auth.disabled_tenancy",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#auth-disabled-tenancy"
  }
}

{
  "error": {
    "type": "validation.not_found",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#validation-not-found"
  }
}

{
  "error": {
    "type": "budget.exceeded",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#budget-exceeded"
  }
}

{
  "error": {
    "type": "runtime.internal",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#runtime-internal"
  }
}

Assess a Session for skill worthiness

Read the suggested-trigger mark for one Session: whether its trajectory is worth learning from, the reasons (many_tool_calls or failure_then_success), and the structural signals behind them. Signals are event types and Run statuses only, never content, and nothing in the platform auto-runs an authoring job from this read.

Checkfu support posture: alpha; hosted. Required evidence journey: skill-delivery. Deployment-specific readiness and the latest proven release are available from GET /v1/support/capabilities.

GET

skill-proposals

suggestions

{session}

Assess a Session for skill worthiness

curl --request GET \
  --url https://api.checkfu.com/v1/skill-proposals/suggestions/{session} \
  --header 'Authorization: Bearer <token>' \
  --header 'checkfu-version: <checkfu-version>'

import requests

url = "https://api.checkfu.com/v1/skill-proposals/suggestions/{session}"

headers = {
    "checkfu-version": "<checkfu-version>",
    "Authorization": "Bearer <token>"
}

response = requests.get(url, headers=headers)

print(response.text)

const options = {
  method: 'GET',
  headers: {'checkfu-version': '<checkfu-version>', Authorization: 'Bearer <token>'}
};

fetch('https://api.checkfu.com/v1/skill-proposals/suggestions/{session}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.checkfu.com/v1/skill-proposals/suggestions/{session}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "checkfu-version: <checkfu-version>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.checkfu.com/v1/skill-proposals/suggestions/{session}"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("checkfu-version", "<checkfu-version>")
	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://api.checkfu.com/v1/skill-proposals/suggestions/{session}")
  .header("checkfu-version", "<checkfu-version>")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.checkfu.com/v1/skill-proposals/suggestions/{session}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["checkfu-version"] = '<checkfu-version>'
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body

{
  "session": "<string>",
  "skill_worthy": true,
  "reasons": [
    "many_tool_calls"
  ],
  "signals": {
    "tool_use_count": 1,
    "failure_then_success": true
  }
}

{
  "error": {
    "type": "validation.malformed",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#validation-malformed"
  }
}

{
  "error": {
    "type": "auth.invalid_key",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#auth-invalid-key"
  }
}

{
  "error": {
    "type": "auth.disabled_tenancy",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#auth-disabled-tenancy"
  }
}

{
  "error": {
    "type": "validation.not_found",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#validation-not-found"
  }
}

{
  "error": {
    "type": "budget.exceeded",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#budget-exceeded"
  }
}

{
  "error": {
    "type": "runtime.internal",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#runtime-internal"
  }
}

Authorizations

Authorization

string

header

required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Headers

checkfu-version

enum<string>

required

Available options:

2026-08-24

Path Parameters

session

string

required

Pattern: ^sess_[0-9a-f]{32}$

Response

Success

session

string

required

Pattern: ^sess_[0-9a-f]{32}$

skill_worthy

boolean

required

reasons

enum<string>[]

required

Available options:

many_tool_calls,

failure_then_success

signals

object

required

Show child attributes

Developer tools

Canonical tables

Author protocols

Generated HTTP API

Assess a Session for skill worthiness

Authorizations

Headers

Path Parameters

Response