Why: establish the authorized task workspace and its initial baseline.
Evidence: preserved precheck receipt in .task/feature-fast-slow-o2-i2-backend.md; R0=d2035c76dc1cb15e01d2c184af5155d9d773cd9f.
Impact: task metadata only; the feature workspace starts at d2035c76dc.
Refs: .task/feature-fast-slow-o2-i2-backend.md
Why: user approved a fresh rerun of the follow-up unit.
Evidence: /tmp/o2i2-20261020/o2-i2b-receipt.attempt1-failed-unknown.json
Impact: task card only.
Refs: AGENT-EXECUTION.md
Co-authored-by: Cursor <cursoragent@cursor.com>
Why: independent re-review of the receipt pass-through fix passed with no blockers.
Evidence: reviewer replay of live eval and runtime tests on 16f98b8
Impact: task card and review package only.
Refs: docs/superpowers/specs/2026-10-20-fast-slow-o2-i2-review.md
Co-authored-by: Cursor <cursoragent@cursor.com>
Why: close the task card inside its own PR so landing it needs no post-merge backfill or separate close PR.
Evidence: .task/feature-fast-slow-o2-i2-backend.md -> .task/archive/feature-fast-slow-o2-i2-backend.md; status 已完成(合入前闭合); PR #652https://git-home.u1680832.nyat.app:30319/weichen/Agent-System-Dev/pulls/652.
Impact: task metadata only; the card is archived within PR #652 and lands with its merge commit.
Refs: task.sh close --self
Why: include the current integration baseline before verification.
Evidence: fetched origin/main=adbef2f49c6c252a09449496afbdb6685201993b.
Impact: integrate upstream changes without rewriting task history.
Refs: task-sync
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WIP:O2 I2(Backend route_contract_eof 系统层配置与按身份挂合同)的任务卡与阶段 6 评审包。
.task/feature-fast-slow-o2-i2-backend.md(任务卡与 PR 描述为同一份文档)