Thin agents · both

30 lines of JSON

One shared ontology update for policy version CRP-2026.4. Both agents were evaluated against the updated policy.

• Control control.sector_concentration

  “A temporary excess is not available when the counterparty's sector accounts for more than max_sector_share of the bank's total live PFE. Look up the sector share with the halden_sector_concentration lookup (field share_of_total) using the counterparty's sector. If it exceeds max_sector_share, refer the request to the Credit Committee (decision escalate, escalate_to credit_committee). Applied after the unrated, rating and size checks.”

  max_sector_share

  0.22

  lookup

  halden_sector_concentration

  field

  share_of_total

  outcome

  escalate

  escalate_to

  credit_committee

  check_order_key

  sector_concentration_control

• edge policy.temporary_excess —has_control→ control.sector_concentration
• updated policy.temporary_excess new version; control added to the check order

Thick agent

142 lines of code and config

Plus 151 lines of tests (22 new) and 24 of documentation, across 10 files.

• policies/CRP-2026.4.yaml+80 −0
• tests/test_policy.py+68 −5
• tests/test_graph.py+64 −2
• README.md+18 −6
• creditagent/policy.py+21 −2
• creditagent/answer.py+12 −0
• tests/conftest.py+7 −5
• creditagent/clients.py+8 −2
• creditagent/graph.py+8 −1
• scripts/self_check.py+6 −2

80 of the added lines are the policy file copied forward to its new version; 14 of them differ from the old one.