Emergency · LIVE

Patient Safety Screener 3 (PSS-3)

PSS-3

Apply Boudreaux 2015 PSS-3 from four caller-assigned flags and return screen_positive using the same-group ED-SAFE definition used with PSS-3 (Boudreaux 2016 Am J Prev Med): ideation past 2 weeks or attempt within 6 months. Depression is a segue and is not factored into screening results. magent does not interview the patient. Not a diagnosis. Not C-SSRS.

LIVE $0.005 USDC GET /api/calc/pss_3

Markdown: /docs/pss-3.md · Canonical: https://magentlab.com/docs/pss-3

Not a medical device. Not a diagnosis, dose, or listing recommendation.

What it computes

Apply Boudreaux 2015 PSS-3 from four caller-assigned flags and return screen_positive using the same-group ED-SAFE definition used with PSS-3 (Boudreaux 2016 Am J Prev Med): ideation past 2 weeks or attempt within 6 months. Depression is a segue and is not factored into screening results. magent does not interview the patient. Not a diagnosis. Not C-SSRS.

When to use

When an agent has already assigned Boudreaux 2015 PSS-3 flags (2-week depressed mood, 2-week suicidal ideation, lifetime attempt, and whether the most recent attempt was within 6 months) and needs the published screen_positive result, not a suicide-risk diagnosis, a C-SSRS interview, or a clinical interview.

When not to use

• Not a medical device and not a diagnosis or treatment order.
• magent does not interview the patient. The caller assigns four bools.
• depressed_mood is the Boudreaux 2015 2-week down/depressed/hopeless segue and is not factored into screening results.
• screen_positive uses the same-group ED-SAFE definition used with PSS-3 (Boudreaux 2016 Am J Prev Med): ideation past 2 weeks or attempt within 6 months. ToolRecord citation is Boudreaux 2015 (PSS-3 validation).
• If lifetime_attempt is false, attempt_within_6_months must be false. This is not C-SSRS.

Formula

screen_positive iff ideation_2_weeks OR (lifetime_attempt AND attempt_within_6_months); depressed_mood (past 2 weeks down/depressed/hopeless) is a segue item and is not factored into screening results; this positive rule is the same-group ED-SAFE definition used with PSS-3 (Boudreaux 2016 Am J Prev Med: ideation past 2 weeks or attempt within 6 months); if lifetime_attempt is false then attempt_within_6_months must be false; four caller-assigned bools; magent does not interview the patient; not a diagnosis; not C-SSRS

Citation

Title

The Patient Safety Screener: Validation of a Brief Suicide Risk Screener for Emergency Department Settings

Authors

Boudreaux ED, Jaques ML, Brady KM, Matson A, Allen MH

Source

Arch Suicide Res. 2015;19(2):151-160

DOI

10.1080/13811118.2015.1034604

Worked example

Also searched as

• PSS-3
• Patient Safety Screener
• Patient Safety Screener 3
• PSS-3 suicide screen
• ED-SAFE PSS-3
• Boudreaux PSS-3
• Patient Safety Screener-3
• ED suicide screener

Try

Opens the live endpoint. Unpaid browser requests show the paywall; agents should send Accept: application/json.

/api/calc/pss_3?depressed_mood=false&ideation_2_weeks=false&lifetime_attempt=false&attempt_within_6_months=false

Full URL: https://api.magentlab.com/api/calc/pss_3?depressed_mood=false&ideation_2_weeks=false&lifetime_attempt=false&attempt_within_6_months=false

Call

Expect HTTP 402 until you retry with PAYMENT-SIGNATURE. Incomplete query params return HTTP 400 before any quote or charge.

curl -i -H "Accept: application/json" "https://api.magentlab.com/api/calc/pss_3?depressed_mood=false&ideation_2_weeks=false&lifetime_attempt=false&attempt_within_6_months=false"

Parameters

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.

POST /api/calc/pss_3 Max 25 unit_amount + extra_item_amount * (n - 1) extra $0.002 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 (fixture)

{
  "items": [
    {
      "attempt_within_6_months": "false",
      "depressed_mood": "false",
      "ideation_2_weeks": "false",
      "lifetime_attempt": "false"
    },
    {
      "attempt_within_6_months": "false",
      "depressed_mood": "false",
      "ideation_2_weeks": "false",
      "lifetime_attempt": "false"
    }
  ]
}

Open bulk paywall →

Opens a two-item fixture on the API host. Unpaid browsers get the same MetaMask paywall as GET; Pay retries POST with those items.

Example 200 (fixture)

{
  "count": 2,
  "path": "/api/calc/pss_3",
  "items": [
    {
      "components": [
        {
          "factor": "depressed_mood",
          "met": false
        },
        {
          "factor": "ideation_2_weeks",
          "met": false
        },
        {
          "factor": "lifetime_attempt",
          "met": false
        },
        {
          "factor": "attempt_within_6_months",
          "met": 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": "Boudreaux ED, Jaques ML, Brady KM, Matson A, Allen MH",
        "doi": "10.1080/13811118.2015.1034604",
        "id": "boudreaux-2015",
        "pmid": "25826715",
        "source": "Arch Suicide Res. 2015;19(2):151-160",
        "title": "The Patient Safety Screener: Validation of a Brief Suicide Risk Screener for Emergency Department Settings"
      },
      "formula": "pss_3",
      "formula_expression": "screen_positive iff ideation_2_weeks OR (lifetime_attempt AND attempt_within_6_months); depressed_mood (past 2 weeks down/depressed/hopeless) is a segue item and is not factored into screening results; this positive rule is the same-group ED-SAFE definition used with PSS-3 (Boudreaux 2016 Am J Prev Med: ideation past 2 weeks or attempt within 6 months); if lifetime_attempt is false then attempt_within_6_months must be false; four caller-assigned bools; magent does not interview the patient; not a diagnosis; not C-SSRS",
      "screen_positive": false,
      "attempt_within_6_months": false,
      "depressed_mood": false,
      "ideation_2_weeks": false,
      "lifetime_attempt": false
    },
    {
      "components": [
        {
          "factor": "depressed_mood",
          "met": false
        },
        {
          "factor": "ideation_2_weeks",
          "met": false
        },
        {
          "factor": "lifetime_attempt",
          "met": false
        },
        {
          "factor": "attempt_within_6_months",
          "met": 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": "Boudreaux ED, Jaques ML, Brady KM, Matson A, Allen MH",
        "doi": "10.1080/13811118.2015.1034604",
        "id": "boudreaux-2015",
        "pmid": "25826715",
        "source": "Arch Suicide Res. 2015;19(2):151-160",
        "title": "The Patient Safety Screener: Validation of a Brief Suicide Risk Screener for Emergency Department Settings"
      },
      "formula": "pss_3",
      "formula_expression": "screen_positive iff ideation_2_weeks OR (lifetime_attempt AND attempt_within_6_months); depressed_mood (past 2 weeks down/depressed/hopeless) is a segue item and is not factored into screening results; this positive rule is the same-group ED-SAFE definition used with PSS-3 (Boudreaux 2016 Am J Prev Med: ideation past 2 weeks or attempt within 6 months); if lifetime_attempt is false then attempt_within_6_months must be false; four caller-assigned bools; magent does not interview the patient; not a diagnosis; not C-SSRS",
      "screen_positive": false,
      "attempt_within_6_months": false,
      "depressed_mood": false,
      "ideation_2_weeks": false,
      "lifetime_attempt": false
    }
  ]
}

Response

Example JSON

Machine form of the same example. Frozen fixture. Not a live lookup.

{
  "components": [
    {
      "factor": "depressed_mood",
      "met": false
    },
    {
      "factor": "ideation_2_weeks",
      "met": false
    },
    {
      "factor": "lifetime_attempt",
      "met": false
    },
    {
      "factor": "attempt_within_6_months",
      "met": 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": "Boudreaux ED, Jaques ML, Brady KM, Matson A, Allen MH",
    "doi": "10.1080/13811118.2015.1034604",
    "id": "boudreaux-2015",
    "pmid": "25826715",
    "source": "Arch Suicide Res. 2015;19(2):151-160",
    "title": "The Patient Safety Screener: Validation of a Brief Suicide Risk Screener for Emergency Department Settings"
  },
  "formula": "pss_3",
  "formula_expression": "screen_positive iff ideation_2_weeks OR (lifetime_attempt AND attempt_within_6_months); depressed_mood (past 2 weeks down/depressed/hopeless) is a segue item and is not factored into screening results; this positive rule is the same-group ED-SAFE definition used with PSS-3 (Boudreaux 2016 Am J Prev Med: ideation past 2 weeks or attempt within 6 months); if lifetime_attempt is false then attempt_within_6_months must be false; four caller-assigned bools; magent does not interview the patient; not a diagnosis; not C-SSRS",
  "screen_positive": false,
  "attempt_within_6_months": false,
  "depressed_mood": false,
  "ideation_2_weeks": false,
  "lifetime_attempt": false
}

Client errors (HTTP 400)

Invalid params return 400 without charge. Shared HTTP 402 and 503 meanings: Payments.

Related tools

• PHQ-9 — Sum nine caller-assigned Kroenke 2001 PHQ-9 integers (0-3) and return the published total (max 27), severity cutpoints, and ≥10 screen.
• GAD-7 — Sum seven caller-assigned Spitzer 2006 GAD-7 integers (0-3) and return the published 0-21 total, 5/10/15 severity cuts, and ≥10 case-finding flag.

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. Unpaid valid requests return HTTP 402 with a base64 PAYMENT-REQUIRED header. HTTP 503 is not a new quote: retry the same PAYMENT-SIGNATURE. Full handshake and shared payment errors: Payments. Stdio MCP: /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.