v0.1.0

Added

• Four tools over Brønnøysundregistrene: get_units, search_units, get_roles, get_financials.
  All read-only, all bulk-by-array (orgnrs[]) with per-item partial success.
• get_financials — annual accounts from regnskapsregisteret. No other public brreg MCP covers it.
• The guards, which are the point of the project:
  • Retired-NACE detection: 96.02 returns a silent 0 from the register; we return the zero and
    a hint naming 96.210/96.220 with the successor's live match count. The query is never rewritten.
  • VAT-sector warning: registrertIMvaregisteret is a good liveness proxy for NACE 96.x/93.x and
    deletes ~94% of genuine clinics under 86.x (health is VAT-exempt).
  • filed_no_revenue_line: holding companies file with driftsinntekter: {} — absent, not zero.
  • antallAnsatte: null (never 0) when the register has no headcount — ~96% of units.
  • ENK branch: sole proprietorships never file accounts (0 of 63 measured); no request is made.
  • valuta always surfaced, never defaulted (Equinor files in USD).
• brreg://reference — field glossary with statutory sources (regnskapsloven §6-1/§6-2,
  foretaksnavneloven §2-2), the retired-NACE table, org-form coverage, role codes.
• company_due_diligence prompt.
• Privacy defaults: get_roles returns no names unless asked; fodselsdato and erDoed are
  dropped unconditionally (the open endpoint returns both); output is an allowlist, plus an
  fnr mod-11 value-shape scan at any depth.
• --mock: a real offline mode built from the register's traps. Replaces the socket, not the
  code path, so every guard is exercised without a network.
• Retry/backoff for 429/5xx with Retry-After support and jitter. Untested against the live
  register — brreg publishes no rate limit and 13,028 real calls at concurrency 8 drew zero 429s.
• 101 hermetic tests (blocking) + 5 live canaries (non-blocking, BRREG_LIVE=1).

Notes

• No cache, no state, no disk. brreg's docs treat HTTP 410 as an instruction to purge copies;
  the safest cache is none. Tests fail if any module imports a cache or writes to disk.
• Single outbound host data.brreg.no, enforced by origin assertion + redirect: "manual" + a
  negative egress test.
• Not affiliated with Brønnøysundregistrene. Data © Brønnøysundregistrene, NLOD 2.0 — note NLOD is a
  copyright licence and explicitly excludes personal data.