## Overview

You can block access to tasks if a Toloker incorrectly entered the captcha several times in a row. To do this, set key values in the quality_control.configs array in the pool settings.

## Request body

If a Toloker fails 7 out of 10 captchas, you may ban them from your project's tasks for a given number of days, hours, minutes (at a time or in total), or permanently.

#### Ban for 10 days

{
"configs": [
{
"collector_config": {
"parameters": {
"history_size": 10
}
},
"rules": [
{
"conditions": [
{
"key": "stored_results_count",
"operator": "EQ",
"value": 10
},
{
"key": "success_rate",
"operator": "LTE",
"value": 70
}
],
"action": {
"type": "RESTRICTION_V2",
"parameters": {
"scope": "PROJECT",
"duration_unit": "DAYS",
"duration": 10,
}
}
}
]
}
]
}


To set a different ban period, change the applicable parameter for the action key:

{
...
"action": {
"type": "RESTRICTION_V2",
"parameters": {
"scope": "PROJECT",
"duration_unit": "HOURS",
"duration": 12,
}
}
...
}

{
...
"action": {
"type": "RESTRICTION_V2",
"parameters": {
"scope": "PROJECT",
"duration_unit": "MINUTES",
"duration": 30,
}
}
...
}

{
...
"action": {
"type": "RESTRICTION_V2",
"parameters": {
"scope": "PROJECT",
"duration_unit": "PERMANENT",

 Parameter Overview configs.rules.conditions object | required Conditions (for example, 10 task suites skipped in a row). Multiple conditions are combined with the "OR" operator. configs[] array of objects | required Array of quality control settings. configs.collector_config object | required Parameters for collecting statistics (for example, the number of tasks skipped in the pool). configs.collector_config.type string | required Criteria for the quality control rule: GOLDEN_SET — The number of correct and incorrect responses in the control tasks. MAJORITY_VOTE — The percentage of responses that matched the majority vote. CAPTCHA — The number of captchas entered successfully and unsuccessfully. INCOME — Payment for tasks completed by the Toloker over the past 24 hours. SKIPPED_IN_ROW_ASSIGNMENTS — The number of task suites skipped in a row. ANSWER_COUNT — The number of task suites completed by the Toloker in the pool. ASSIGNMENT_SUBMIT_TIME — The number of "fast" responses (the minimum response speed is set in the parameters). ACCEPTANCE_RATE — The percentage of Toloker responses that were rejected during non-automatic acceptance. ASSIGNMENTS_ASSESSMENT — The number of assignments accepted or rejected with non-automatic acceptance enabled. USERS_ASSESSMENT — The Toloker's skill value and their bans. configs.rules.conditions.key string | required Values that are checked in the condition: stored_results_count — The number of captcha attempts (less than or equal to history_size). success_rate — The percentage of successful responses (from 0 to 100). fail_rate — The percentage of unsuccessful responses (from 0 to 100). configs.rules.conditions. value integer | required The threshold value of the variable specified in key. configs.rules.conditions. operator string | required Comparison operator (the key data is compared with the threshold value from value): EQ ("Equal") — Equal to. NE ("Not equal to") — Not equal to. GT ("Greater than") — Greater than. LT ("Less than") — Less than. GTE ("Greater than equal to") — Greater than or equal to. LTE ("Less than equal to") — Less than or equal to. configs.rules.action object | required The action to perform if conditions are met (for example, block access to the project). configs.rules.action.type string | required Type of action: RESTRICTION — Ban access to projects or pools. SET_SKILL_FROM_OUTPUT_FIELD — Set the "percentage of correct responses" as the skill value (used in control tasks and majority vote rules). You can use the skill value for filtering Tolokers. CHANGE_OVERLAP — Change the overlap. For example, to re-assign a task suite to other Tolokers or cancel the recompletion of already accepted assignments. REJECT_ALL_ASSIGNMENTS — Reject all Toloker responses. For example, after a certain number of Toloker responses, it became clear that the Toloker completed tasks poorly. APPROVE_ALL_ASSIGNMENTS — Accept all Toloker responses. For example, if the Toloker completes most tasks well and you are satisfied with this result. SET_SKILL — Assign the specified constant value to the skill. configs.rules.action. parameters object | required Action parameters. configs.rules.action. parameters.scope string | required Scope: POOL — pool. Affects the Toloker's rating. PROJECT — The project. Affects the Toloker's rating. ALL_PROJECTS — All the requester's projects. configs.collector_config. parameters object | required if Required if configs.collector_config.type=GOLDEN_SET, MAJORITY_VOTE, CAPTCHA, ASSIGNMENT_SUBMIT_TIME. Parameters for collecting data (depends on the quality control rule specified in the type key). configs.rules.action. parameters.skill_id string | required if Required if type=SET_SKILL_FROM_OUTPUT_FIELD. ID of the skill to update as tasks are completed. configs.rules.action. parameters.from_field string | required if Required if type=SET_SKILL_FROM_OUTPUT_FIELD. The value to assign to the skill: correct_answers_rate — The percentage of correct responses. wrong_answers_rate — The percentage of incorrect responses. configs.rules.action. parameters.skill_value integer | required if Required if type=SET_SKILL_FROM_OUTPUT_FIELD. A fixed value to assign to the skill (a number from 0 to 100). configs.rules.action. parameters.delta integer | required if Required if type=CHANGE_OVERLAP. The value determines the amount to change the overlap by. configs.rules.action. parameters.public_comment string | required if Required if type=REJECT_ALL_ASSIGNMENTS. Comments (the reason for rejecting responses). Available to the requester and the Toloker. captcha_frequency string The frequency of showing captchas: LOW — Show one for every 20 tasks. MEDIUM, HIGH — Show one for every 10 tasks. By default, captchas aren't displayed. configs.collector_config. parameters.history_size integer The maximum number of recently displayed captchas in the project to use for the calculation. If this field is omitted, the calculation is based on all the captchas shown for the pool. configs.rules.action. parameters.duration_unit string Ban duration unit: MINUTES — Minutes HOURS — Hours DAYS — Days PERMANENT — Permanent ban configs.rules.action. parameters.duration integer Ban duration. configs.rules. action.parameters. private_comment string Comments (the reason for blocking access). Visible only to the requester. configs.rules.action. parameters.open_pool boolean Determines whether to re-open a closed pool: true — Open the pool after making changes if it is closed. false — Don't open the pool after making changes, if it is closed.