---
model: openai/gpt-5.6-sol
service: opencode
timestamp: 2026-08-28T02:14:11Z
git_ref: 6ca6ab2a
diff_cmd: git diff HEAD~1..HEAD
---

## Prompt

Move the symcache/accounting fix into an isolated worktree and, as
part of its commit plan, distill a Piker-specific skill for deep
clearing, accounting, order-control, and trade-ledger expertise.
A follow-up required the skill's canonical files to begin moving into
a cross-harness, AI-provider-neutral standard location.

## Response

Created the shared repository skill bundle under the provider-neutral
`.agents/skills/piker-clearing-expert/` location. Its main skill defines
activation cues,
runtime ownership, event and identifier contracts, accounting and
persistence invariants, market identity rules, an editing workflow,
and a canonical source map.

> `git diff HEAD~1..HEAD -- .agents/skills/piker-clearing-expert/SKILL.md`

Added a detailed architecture reference for EMS routing, ack/cancel
ordering, paper and live execution, ledger normalization, position
events, symbology, and context-managed persistence.

> `git diff HEAD~1..HEAD -- .agents/skills/piker-clearing-expert/architecture.md`

Added symptom-driven gotchas and debugging breadcrumbs for actor
teardown, ID skew, position reconciliation, duplicate fills,
paper/live differences, and RapidFuzz mapping misuse.

> `git diff HEAD~1..HEAD -- .agents/skills/piker-clearing-expert/gotchas.md`

Added a deterministic-to-live test map and regression-design guidance.

> `git diff HEAD~1..HEAD -- .agents/skills/piker-clearing-expert/test-map.md`

Updated the worktree runtime ignore block to include the canonical
root-level `wkts/` directory required by the worktree lifecycle.

> `git diff HEAD~1..HEAD -- .gitignore`

Added a relative Claude compatibility link and documented the
provider-neutral source convention in the shared and harness-specific
inventories.

> `git diff HEAD~1..HEAD -- .claude/skills/piker-clearing-expert`

> `git diff HEAD~1..HEAD -- ai/README.md`

> `git diff HEAD~1..HEAD -- ai/claude-code/README.md`

> `git diff HEAD~1..HEAD -- ai/opencode/README.md`

The skill cross-links `piker-conc-expert` for actor-runtime mechanics
instead of duplicating structured-concurrency guidance.