---
model: openai/gpt-5.6-sol
service: opencode
session: pid-469264
timestamp: 2026-08-28T06:31:26Z
git_ref: 1606122b
scope: code
substantive: true
raw_file: 20260828T063126Z_1606122b_prompt_io.raw.md
---

## Prompt

Review the staged IB broker patch before committing it. After the review
identified a deterministic error-parser crash, continue with the available
next steps while leaving the typed EMS worktree and Ruff change untouched.

## Response summary

Repaired bracketed IB API error parsing by splitting on the matched error
prefix. Added a deterministic regression that routes bracketed and plain
strings through the real trade-event relay and verifies their EMS error
messages.

## Files changed

- `piker/brokers/ib/broker.py` - safely extracts bracketed API error codes.
- `tests/test_ib_broker.py` - covers bracketed and plain error relay inputs.

## Human edits

The human required review before the root commit, accepted the identified
parser defect as the next work item, and explicitly authorized continuation.
The pre-existing staged IB refactor is human-authored; the agent applied only
the parser repair and focused regression described above.