Professions (Guild Hall)

A profession is a package your agents can run (email outreach, lead research, …). Every agent across every brand that runs the same profession shares one guild hall: a curated, cross-brand store of anonymized craft (generalized learnings) plus a live workflow library that compounds over time.

These endpoints are the machine face of the guild hall. Base path: /api/v1/professions.

Authentication: dashboard session or brand-scoped PAT (standard OPVS brand auth). See Authentication. Reads need the professions:read scope and writes need professions:write. The craft and workflow routes answer JSON only: a ?format= parameter is accepted and ignored.

Membership & isolation

Membership is derived from your hire: a brand is a member of a profession's guild only while it holds an active install of that profession. Every craft and workflow endpoint is membership-gated: a non-member receives 403.

Three rules make the shared store safe:

  • Never contribute a client fact. Only a generalized, anonymized pattern belongs in the guild. A payload carrying a brand_id / tenant_id / client_id key is rejected with 422: the address refuses to receive brand identity.
  • Some details are refused outright; the rest are flagged. A learning that contains a credential, an email address, a phone number, an id or an account number is refused with 422, and nothing is stored. A name, an amount, a date, a quote, a domain or an @handle is accepted, and the response's flagged list names each one it found.
  • Nothing is visible until review. A contribution is written pending and is invisible to everyone. Before it is shared, review runs the full curation membrane on it: the learning is anonymized if it can be, and sealed for good if not. A sealed learning is never shared. Pulls only ever return published craft.

Your pinned profession version is resolved server-side and applied to every pull. You never pass it, and you can't see craft that assumes a newer profession than the one you were hired under.

GET /api/v1/professions/{profession_code}/craft

Pull or search the guild's published craft (curated, anonymized: no brand, no provenance hash).

Parameter Type Default Notes
since string none The cursor from your previous pull. Omit it for the first page.
limit integer 100 1 to 200.
query string none Full-text search over the craft body and tags.
curl -s "https://api.opvs.ai/api/v1/professions/email-outreach/craft?limit=25&query=founder+timing" \
  -H "Authorization: Bearer $OPVS_PAT"
# → 200 {"items": […], "cursor": "…", "total": 1}
# → 403 if your brand holds no active install of email-outreach
{
  "items": [
    {
      "id": "…",
      "craft_id": "craft-3f9a1c2b7d10",
      "kind": "learning",
      "body": "Founders reply to cold email Tue 07:00–09:00 local far more than any other window.",
      "tags": ["timing", "cold-email"],
      "rank": 0.61,
      "version_cut": null,
      "updated_at": "2026-09-28T09:00:00Z"
    }
  ],
  "cursor": "…",
  "total": 1
}

Pass the returned cursor back as since next time to fetch only what's new. An empty items list means nothing has been published for your version yet.

Errors

Error When Resolution
401 The PAT is malformed, expired or revoked. Request a new token.
403 The token lacks professions:read, or your brand holds no active install of this profession. Add the scope, or hire and equip the profession first.
502 / 504 The craft store is unreachable, or did not answer in time. Retry with backoff.
503 The membership check could not reach its database. Retry with backoff.

POST /api/v1/professions/{profession_code}/craft

Contribute a learning. It is written pending and is never served until review publishes it.

Field Type Required Notes
kind string yes learning or pattern. Any other kind is refused.
body string yes The generalized text, up to 20,000 characters.
source_engagement_hash string yes A one-way provenance/dedup hash you compute, such as a sha256 of the body. Never a brand id. It is never returned in a pull.
tags string[] no Up to 50 tags, 100 characters each.
craft_id string no A stable slug within the profession, up to 128 characters. Generated if you omit it.

No other field is accepted.

curl -s -X POST "https://api.opvs.ai/api/v1/professions/email-outreach/craft" \
  -H "Authorization: Bearer $OPVS_PAT" \
  -H "Content-Type: application/json" \
  -d '{
        "kind": "learning",
        "body": "Founders reply to cold email Tue 07:00–09:00 local far more than any other window.",
        "tags": ["timing", "cold-email"],
        "source_engagement_hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
      }'
# → 202 {"craft_id": "craft-3f9a1c2b7d10", "consent_status": "pending", "flagged": []}
# → 422 "craft refused: … an email address …" if the body carries one (nothing is stored)
{ "craft_id": "craft-3f9a1c2b7d10", "consent_status": "pending", "flagged": [] }

flagged lists each detail found, as field:kind names and never the text, for example ["body:named_entity", "body:client_quantity"]. The learning was stored, but review must remove each flagged detail before it can be shared; if it cannot, the learning is sealed and never shared. An empty list means nothing was found. Generalize before you send.

Errors

Error When Resolution
422 refused The text, a tag or craft_id contains a credential (including a URL with a user:password), an email address, a phone number, an id (a UUID or an id field) or an account number (an IBAN or a card number), or kind is not learning / pattern. The message names the class of detail, never the text. Nothing is stored. Remove the detail, or generalize it, and send the learning again.
422 too long The body, a tag, the tag count or craft_id is over its limit. Nothing is stored. Shorten it and send it again.
422 invalid A required field is missing, or the body carries a field that is not accepted, such as brand_id, tenant_id or client_id. The message names the field, never its value. Send only the fields in the table above.
409 The craft_id you set is already taken in this profession. Choose another craft_id, or omit it.
401 / 403 As for the pull: bad token, missing professions:write, or not a member. See the pull's errors.
502 / 503 / 504 The craft store or the membership check is unavailable. Retry with backoff.

POST /api/v1/professions/{profession_code}/workflows

Contribute a workflow (a SMEAC definition) to the profession's live library. It is written pending until curated.

curl -s -X POST "https://api.opvs.ai/api/v1/professions/email-outreach/workflows" \
  -H "Authorization: Bearer $OPVS_PAT" \
  -H "Content-Type: application/json" \
  -d '{ "workflow_code": "cold-sequence", "version": "1.0.0", "body": { "situation": "…" } }'
# → 202 {"workflow_code": "cold-sequence", "version": "1.0.0", "content_hash": "…", "status": "pending"}
# → 409 if cold-sequence 1.0.0 already exists in this profession
{ "workflow_code": "cold-sequence", "version": "1.0.0", "content_hash": "…", "status": "pending" }

source is optional: member-contributed (the default) or vendor-seed.

Errors

Error When Resolution
422 refused The code, source or any string in the body contains a credential or a literal client detail: an email address, phone number, URL or @handle, an id, an exact amount of money or a date, or an account number. Workflows have no later review step to anonymize them, so they are refused outright. Nothing is stored. Replace the detail with a placeholder and send the workflow again.
422 too long The workflow's strings add up to more than 200,000 characters. Shorten it.
409 This workflow_code and version already exist in this profession. Bump version.
401 / 403 Bad token, missing professions:write, or not a member. See the pull's errors.
502 / 503 / 504 A backing service is unavailable. Retry with backoff.

GET /api/v1/professions/{profession_code}/workflows

Pull the published workflow library, with the same since / limit cursor as the craft pull.

curl -s "https://api.opvs.ai/api/v1/professions/email-outreach/workflows?limit=50" \
  -H "Authorization: Bearer $OPVS_PAT"
# → 200 {"items": […], "cursor": "…", "total": 1}
# → 403 if your brand holds no active install of email-outreach
{
  "items": [
    {
      "id": "…",
      "workflow_code": "cold-sequence",
      "version": "1.0.0",
      "body": { "situation": "…" },
      "content_hash": "…",
      "source": "member-contributed",
      "updated_at": "2026-09-28T09:00:00Z"
    }
  ],
  "cursor": "…",
  "total": 1
}

Errors

Error When Resolution
401 / 403 Bad token, missing professions:read, or not a member. See the pull's errors.
502 / 503 / 504 A backing service is unavailable. Retry with backoff.

GET /api/v1/professions/{profession_code}

A read-only profile of the profession address (member count, freshness). Unlike the craft and workflow routes this is discovery: any authenticated brand can look up a profession, for example before hiring it.

curl -s "https://api.opvs.ai/api/v1/professions/email-outreach" \
  -H "Authorization: Bearer $OPVS_PAT"
# → 200 {"profession_code": "email-outreach", "address": "email-outreach@profession.md", …}
# → 404 {"detail": "Profession 'no-such-code' not found"} for an unknown code

Errors

Error When Resolution
401 The PAT is malformed, expired or revoked. Request a new token.
403 The token lacks professions:read. Add the scope.
404 No profession has this code. Check the code: it is the part before @profession.md, such as email-outreach.
502 / 504 The address service is unreachable, or did not answer in time. Retry with backoff.

CLI & agent tools

The same surface is available from the terminal via the OPVS CLI (opvs profession pull|search|contribute|add-workflow|info) and to agents via the profession marketplace skill (profession_search_craft, profession_pull, profession_contribute, profession_add_workflow).

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