pool_role_unknown

  ✗ A step performs a reserved act, and no role that does it holds the credential its row reserves it to. Give the step to a role that holds the credential, or set the role's credential to one that meets it. sign performs sign, reserved to sworn translator (rules 2026-10), and the sworn role holds no credential.
    at services/translation.ts:10 · roles.sworn.credential
  ✗ A Service's role names a Pool that has no role by that name, so no member could ever be offered its Task. Name the role as the Pool does, or add it to the Pool's roles. translation's role sworn names the translators Pool, which fills translator.
    at services/translation.ts:10 · roles.sworn
✗ 2 to fix

import { Service } from 'services.dev'
import { translators } from '../pools/translators.ts'
import rules from '../rules.ts'

export default Service({
  name: 'Translation',
  input: { document: 'file', to: 'language: a BCP 47 tag, such as fr-CA' },
  output: { document: 'file' },
  rules,
  roles: { sworn: { pool: translators } },
  deliver: {
    translate: 'ai',
    harden: { review: 'adversarial', lenses: ['meaning', 'terms'] },
    sign: { by: 'sworn', stamp: true },
  },
  price: 89,
})

diff --git a/services/translation.ts b/services/translation.ts
index 2f71f3d..e68b75e 100644
--- a/services/translation.ts
+++ b/services/translation.ts
@@ -7,11 +7,11 @@ export default Service({
   input: { document: 'file', to: 'language: a BCP 47 tag, such as fr-CA' },
   output: { document: 'file' },
   rules,
-  roles: { sworn: { pool: translators } },
+  roles: { translator: { pool: translators } },
   deliver: {
     translate: 'ai',
     harden: { review: 'adversarial', lenses: ['meaning', 'terms'] },
-    sign: { by: 'sworn', stamp: true },
+    sign: { by: 'translator', stamp: true },
   },
   price: 89,
 })

✓ ready to sell · 1 Service · it keeps at least 80% of every job

import { Pool } from 'services.dev'

export const translators = Pool({
  name: 'translators',
  roles: { translator: { credential: 'sworn translator' } },
  join: { name: 'text', languages: 'language[]' },
  verify: 'https://verify.example.test/translators',
  fill: ['raise 10% 2h', 'widen 4h'],
})

import { Rules } from 'services.dev'

export default Rules({
  version: '2026-10',
  services: {
    translation: {
      sign: { reserved: 'sworn translator', where: '*', position: 'A sworn translator signs a translation filed with a registry.' },
    },
  },
})

roles: {
  attorney: { credential: 'bar admission' },
  practitioner: { credential: ['patent attorney', 'patent agent'], where: '*' },
// …
  student: { credential: 'law school enrollment' },

roles: { attorney: { pool: attorneys, pay: 50 } },

{
  "code": "pool_role_unknown",
  "reason": "A Service's role names a Pool that has no role by that name, so no member could ever be offered its Task.",
  "next": "Name the role as the Pool does, or add it to the Pool's roles. translation's role sworn names the translators Pool, which fills translator.",
  "doc_url": "https://services.dev/docs/reference/check/pool_role_unknown",
  "file": "services/translation.ts",
  "line": 10,
  "path": "roles.sworn"
}