# Drug Abuse Screening Test-10 (DAST-10) DAST-10 Status: LIVE Price: $0.005 USDC `GET /api/calc/dast_10` HTML: https://magentlab.com/docs/dast-10 Markdown: https://magentlab.com/docs/dast-10.md Not a medical device. Not a diagnosis, dose, or listing recommendation. ## What it computes Count Skinner 1982 DAST-10 problem-direction answers (able_to_stop reverse-scored) and return the published degree-of-problems band (0 none, 1-2 low, 3-5 moderate, 6-8 substantial, 9-10 severe). ## When to use When an agent has already assigned the ten DAST-10 yes/no items and needs that 1982 scored total and degree-of-problems bands, not DAST-20, DAST-28, a diagnosis, or a toxicology panel. ## When not to use - Not a medical device. - Not a diagnosis of a drug use disorder. - Not a toxicology panel and not a measure of alcohol use. - magent does not interpret the items. Each flag is caller-assigned yes/no. - Scoring uses the Skinner 1982 DAST-10 problem-direction key. able_to_stop scores 1 if false and 0 if true. magent does not award 1 point for every yes. - This is the 10-item DAST-10 only. Not DAST-28 and not DAST-20. - Degree-of-problems bands follow the 1982 DAST-10 table: 0 no problems, 1-2 low, 3-5 moderate, 6-8 substantial, 9-10 severe. magent does not apply Gavin 1989 DAST DSM-III cut-points (5/6) or later NIDA-only cutoffs. ## Formula ``` DAST-10 = used_drugs_nonmedical + abuse_more_than_one + (1 if not able_to_stop) + blackouts_flashbacks + feel_bad_guilty + others_complain + neglected_family + illegal_activities + withdrawal + medical_problems; each 1 in the Skinner 1982 problem direction; max 10 ``` ## Citation [The drug abuse screening test](https://doi.org/10.1016/0306-4603(82)90005-3) Skinner HA Addict Behav. 1982;7(4):363-371 DOI: [10.1016/0306-4603(82)90005-3](https://doi.org/10.1016/0306-4603(82)90005-3) ## Worked example ### All no (able_to_stop true) Given: `able_to_stop=true, abuse_more_than_one=false, blackouts_flashbacks=false, feel_bad_guilty=false, illegal_activities=false, medical_problems=false, neglected_family=false, others_complain=false, used_drugs_nonmedical=false, withdrawal=false` 1. able_to_stop is true (reverse-scored; not scored) 2. the other nine items are false (not scored) 3. score = 0; dast_band no_problems ### Unable to stop only Given: `able_to_stop=false, abuse_more_than_one=false, blackouts_flashbacks=false, feel_bad_guilty=false, illegal_activities=false, medical_problems=false, neglected_family=false, others_complain=false, used_drugs_nonmedical=false, withdrawal=false` 1. able_to_stop is false (reverse-scored; scores 1) 2. the other nine items are false 3. score = 1; dast_band low ### Four problem-direction answers Given: `able_to_stop=true, abuse_more_than_one=true, blackouts_flashbacks=true, feel_bad_guilty=true, illegal_activities=false, medical_problems=false, neglected_family=false, others_complain=false, used_drugs_nonmedical=true, withdrawal=false` 1. used_drugs_nonmedical, abuse_more_than_one, blackouts_flashbacks, and feel_bad_guilty true 2. able_to_stop true (not scored) 3. score = 4; dast_band moderate ### Nine forward items true Given: `able_to_stop=true, abuse_more_than_one=true, blackouts_flashbacks=true, feel_bad_guilty=true, illegal_activities=true, medical_problems=true, neglected_family=true, others_complain=true, used_drugs_nonmedical=true, withdrawal=true` 1. nine forward items true; able_to_stop true (not scored) 2. score = 9; dast_band severe ## Also searched as - DAST-10 - Drug Abuse Screening Test - DAST 10 - Skinner DAST - 10-item DAST - drug abuse screening test 10 - DAST score ## Parameters - `used_drugs_nonmedical` (boolean, required): Have you used drugs other than those required for medical reasons? (Skinner 1982 DAST-10 item 1; past 12 months). true or false as assigned by the caller. true is the problem-direction answer and scores 1. magent does not interpret the item. - `abuse_more_than_one` (boolean, required): Do you abuse more than one drug at a time? (Skinner 1982 DAST-10 item 2; past 12 months). true or false as assigned by the caller. true is the problem-direction answer and scores 1. magent does not interpret the item. - `able_to_stop` (boolean, required): Are you always able to stop using drugs when you want to? (Skinner 1982 DAST-10 item 3; past 12 months). true or false as assigned by the caller. false is the problem-direction answer and scores 1 (reverse-scored). magent does not interpret the item. - `blackouts_flashbacks` (boolean, required): Have you had blackouts or flashbacks as a result of drug use? (Skinner 1982 DAST-10 item 4; past 12 months). true or false as assigned by the caller. true is the problem-direction answer and scores 1. magent does not interpret the item. - `feel_bad_guilty` (boolean, required): Do you ever feel bad or guilty about your drug use? (Skinner 1982 DAST-10 item 5; past 12 months). true or false as assigned by the caller. true is the problem-direction answer and scores 1. magent does not interpret the item. - `others_complain` (boolean, required): Does your spouse (or parents) ever complain about your involvement with drugs? (Skinner 1982 DAST-10 item 6; past 12 months). true or false as assigned by the caller. true is the problem-direction answer and scores 1. magent does not interpret the item. - `neglected_family` (boolean, required): Have you neglected your family because of your use of drugs? (Skinner 1982 DAST-10 item 7; past 12 months). true or false as assigned by the caller. true is the problem-direction answer and scores 1. magent does not interpret the item. - `illegal_activities` (boolean, required): Have you engaged in illegal activities in order to obtain drugs? (Skinner 1982 DAST-10 item 8; past 12 months). true or false as assigned by the caller. true is the problem-direction answer and scores 1. magent does not interpret the item. - `withdrawal` (boolean, required): Have you ever experienced withdrawal symptoms (felt sick) when you stopped taking drugs? (Skinner 1982 DAST-10 item 9; past 12 months). true or false as assigned by the caller. true is the problem-direction answer and scores 1. magent does not interpret the item. - `medical_problems` (boolean, required): Have you had medical problems as a result of your drug use (e.g., memory loss, hepatitis, convulsions, bleeding)? (Skinner 1982 DAST-10 item 10; past 12 months). true or false as assigned by the caller. true is the problem-direction answer and scores 1. magent does not interpret the item. ## Bulk (POST) POST the same path with a JSON items array. The first item is the GET unit; each additional item is $0.002. Invalid items return HTTP 400 before settlement. Method: `POST /api/calc/dast_10` Max items: 25 Price: unit_amount + extra_item_amount * (n - 1) (unit 5000 atomic, extra 2000 atomic) Status: PREVIEW - 1 to 25 items. Each item uses the same keys as the GET query parameters. - POST of 1 item costs the same as GET. Lists longer than 25: chunk into multiple POSTs. Extra items still execute; do not pad dummy rows. - The first invalid item fails the whole request (index in the 400 JSON). You are not charged. - HTTP 200 is {count, path, items}. Each items[i] is the GET 200 body for that row. - Catalog misses (empty matches, found=false) stay paid 200s inside that slot. - x402 resource URL is this path plus n and body_sha256. Browsers that prefer text/html get the same paywall as GET; Pay retries POST with the same items. Example request: ```json { "items": [ { "able_to_stop": "true", "abuse_more_than_one": "false", "blackouts_flashbacks": "false", "feel_bad_guilty": "false", "illegal_activities": "false", "medical_problems": "false", "neglected_family": "false", "others_complain": "false", "used_drugs_nonmedical": "false", "withdrawal": "false" }, { "able_to_stop": "true", "abuse_more_than_one": "false", "blackouts_flashbacks": "false", "feel_bad_guilty": "false", "illegal_activities": "false", "medical_problems": "false", "neglected_family": "false", "others_complain": "false", "used_drugs_nonmedical": "false", "withdrawal": "false" } ] } ``` Human paywall (two-item fixture): https://api.magentlab.com/paywall/bulk/dast-10 Example 200: ```json { "count": 2, "path": "/api/calc/dast_10", "items": [ { "components": [ { "factor": "used_drugs_nonmedical", "points": 0, "present": false }, { "factor": "abuse_more_than_one", "points": 0, "present": false }, { "factor": "able_to_stop", "points": 0, "present": false }, { "factor": "blackouts_flashbacks", "points": 0, "present": false }, { "factor": "feel_bad_guilty", "points": 0, "present": false }, { "factor": "others_complain", "points": 0, "present": false }, { "factor": "neglected_family", "points": 0, "present": false }, { "factor": "illegal_activities", "points": 0, "present": false }, { "factor": "withdrawal", "points": 0, "present": false }, { "factor": "medical_problems", "points": 0, "present": false } ], "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.", "citation": { "authors": "Skinner HA", "doi": "10.1016/0306-4603(82)90005-3", "id": "skinner-1982", "source": "Addict Behav. 1982;7(4):363-371", "title": "The drug abuse screening test" }, "formula": "dast_10", "formula_expression": "DAST-10 = used_drugs_nonmedical + abuse_more_than_one + (1 if not able_to_stop) + blackouts_flashbacks + feel_bad_guilty + others_complain + neglected_family + illegal_activities + withdrawal + medical_problems; each 1 in the Skinner 1982 problem direction; max 10", "max_score": 10, "score": 0, "dast_band": "no_problems" }, { "components": [ { "factor": "used_drugs_nonmedical", "points": 0, "present": false }, { "factor": "abuse_more_than_one", "points": 0, "present": false }, { "factor": "able_to_stop", "points": 0, "present": false }, { "factor": "blackouts_flashbacks", "points": 0, "present": false }, { "factor": "feel_bad_guilty", "points": 0, "present": false }, { "factor": "others_complain", "points": 0, "present": false }, { "factor": "neglected_family", "points": 0, "present": false }, { "factor": "illegal_activities", "points": 0, "present": false }, { "factor": "withdrawal", "points": 0, "present": false }, { "factor": "medical_problems", "points": 0, "present": false } ], "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.", "citation": { "authors": "Skinner HA", "doi": "10.1016/0306-4603(82)90005-3", "id": "skinner-1982", "source": "Addict Behav. 1982;7(4):363-371", "title": "The drug abuse screening test" }, "formula": "dast_10", "formula_expression": "DAST-10 = used_drugs_nonmedical + abuse_more_than_one + (1 if not able_to_stop) + blackouts_flashbacks + feel_bad_guilty + others_complain + neglected_family + illegal_activities + withdrawal + medical_problems; each 1 in the Skinner 1982 problem direction; max 10", "max_score": 10, "score": 0, "dast_band": "no_problems" } ] } ``` ## Response fields - `formula` (string): dast_10 - `formula_expression` (string): Exact expression used - `score` (integer): DAST-10 points 0-10. Count of Skinner 1982 problem-direction answers, not a raw yes count. - `max_score` (integer): 10 - `dast_band` (string): Skinner 1982 DAST-10 degree of problems: no_problems (0), low (1-2), moderate (3-5), substantial (6-8), or severe (9-10). Not a diagnosis. - `components` (array): Per-item points. present is true when the answer is in the problem direction. - `citation` (object): Skinner Addict Behav 1982 citation - `disclaimer` (string): Not-a-device notice ## Example JSON Frozen fixture. Not a live lookup. ```json { "components": [ { "factor": "used_drugs_nonmedical", "points": 0, "present": false }, { "factor": "abuse_more_than_one", "points": 0, "present": false }, { "factor": "able_to_stop", "points": 0, "present": false }, { "factor": "blackouts_flashbacks", "points": 0, "present": false }, { "factor": "feel_bad_guilty", "points": 0, "present": false }, { "factor": "others_complain", "points": 0, "present": false }, { "factor": "neglected_family", "points": 0, "present": false }, { "factor": "illegal_activities", "points": 0, "present": false }, { "factor": "withdrawal", "points": 0, "present": false }, { "factor": "medical_problems", "points": 0, "present": false } ], "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.", "citation": { "authors": "Skinner HA", "doi": "10.1016/0306-4603(82)90005-3", "id": "skinner-1982", "source": "Addict Behav. 1982;7(4):363-371", "title": "The drug abuse screening test" }, "formula": "dast_10", "formula_expression": "DAST-10 = used_drugs_nonmedical + abuse_more_than_one + (1 if not able_to_stop) + blackouts_flashbacks + feel_bad_guilty + others_complain + neglected_family + illegal_activities + withdrawal + medical_problems; each 1 in the Skinner 1982 problem direction; max 10", "max_score": 10, "score": 0, "dast_band": "no_problems" } ``` ## Errors - HTTP 400 `invalid_dast_item`: each DAST-10 item must be true or false (Skinner 1982; item able_to_stop is reverse-scored). Returned before settlement; you are not charged. - HTTP 400 `invalid_items`: POST body must be a JSON object with only an items array Returned before settlement; you are not charged. - HTTP 400 `invalid_item_count`: items must be an array of 1 to 25 objects Returned before settlement; you are not charged. - HTTP 400 `invalid_item`: each items entry must be a JSON object Returned before settlement; you are not charged. Shared HTTP 402 and 503: https://magentlab.com/docs/payments ## Related tools - [CAGE](https://magentlab.com/docs/cage) — Sum the four Ewing 1984 CAGE items and return whether two or more answers are affirmative. - [AUDIT-C](https://magentlab.com/docs/audit-c) — Sum three caller-assigned Bush 1998 AUDIT-C integers (0-4) and return this paper's ≥3 and ≥4 screens. - [SMAST](https://magentlab.com/docs/smast) — Count Selzer 1975 SMAST alcoholic-direction answers and return the published 0-1 nonalcoholic, 2 possible, and ≥3 alcoholic bands. ## Payment Unpaid requests return HTTP 402 even if query parameters or POST items are missing or invalid, so CDP and agents can index the path. After a PAYMENT-SIGNATURE, invalid params return HTTP 400 JSON before settlement. magent does not charge. Fix the params, then request a new 402 quote for that complete URL. Catalog misses (empty matches, found=false) are valid paid 200s. - GET the tool with Accept: application/json (do not send Accept: text/html unless you want the human paywall). - HTTP 402 means you have not paid. Decode the base64 PAYMENT-REQUIRED header. HTTP 503 is not a new quote. - Sign accepts[0] (exact, EIP-3009) with validBefore = now + maxTimeoutSeconds (600 seconds), or accepts[1] (batch-settlement deposit/voucher) on product GET. Ping and POST {items} stay exact. Magent retries transient facilitator 429/5xx before answering. - Retry the same URL with PAYMENT-SIGNATURE (base64 JSON of accepted and payload). Magent attaches canonical extensions.bazaar on CDP verify/settle; echoing 402 bazaar is optional. - Success is HTTP 200 JSON plus PAYMENT-RESPONSE. exact settles before the tool. batch-settlement verifies (and deposit-settles) before the tool and commits the charge after HTTP 2xx. HTTP 503: retry the same PAYMENT-SIGNATURE. Mint a new exact nonce only after a new HTTP 402. - offered `exact` on eip155:8453: Fixed-price USDC on Base. The buyer authorizes the advertised amount (EIP-3009). magent settles before the tool runs (paymentFlow upfront). extra.assetTransferMethod=eip3009 extra.paymentFlow=upfront. - offered `batch-settlement` on eip155:8453: Payment-channel vouchers claimed later in batches. Exact stays accepts[0]. Same-path POST {items} is still exact. extra.assetTransferMethod=eip3009 extra.paymentFlow=authorization. - not offered `upto`: Not offered. Usage-based: buyer authorizes a ceiling, seller settles the actual amount after work. Reserved for a future metered tool. Not for current calculators or code search. Same-path POST {items} is still scheme exact: one EIP-3009 authorization for GET unit plus $0.002 per extra item. That is not x402 batch-settlement (payment channels / vouchers). Shared HTTP 402 and 503 table: https://magentlab.com/docs/payments Stdio MCP (one process per host): https://magentlab.com/docs/mcp ## Guarantees - HTTP 402 is unpaid, including a missing query. After PAYMENT-SIGNATURE, invalid parameters return HTTP 400 before settlement. You are not charged. HTTP 402 never includes the tool JSON. - exact: settlement finishes before the tool (paymentFlow upfront). batch-settlement: verify/deposit before the tool; chargedCumulativeAmount commits after HTTP 2xx. Uncertain or failed settlement fails closed (HTTP 503). Retry the same PAYMENT-SIGNATURE. - HTTP 402 is unpaid only. Do not sign a second authorization because of a 503. - Execution is timeout-bounded and concurrency-capped. - Calculator inputs are stored encrypted for allowlisted operators (Magent Console). They are not in public logs, SSH lookups, catalog, or rollups. Request logs store path without query.