Why: establish the authorized task workspace and its initial baseline.
Evidence: preserved precheck receipt in .task/feature-fast-slow-o2-a01-evidence-design.md; R0=556201541c9a98f34fdad860cfad886af069279d.
Impact: task metadata only; the feature workspace starts at 556201541c.
Refs: .task/feature-fast-slow-o2-a01-evidence-design.md
Why: O2 P1 proved the route contract on the real route, but A01 stopped at
the first work checkpoint because the model mixed evidence modes and the
evaluation stops on any rejection. The user chose a zero-paid design that
tightens the tool guidance and lets the evaluation allow one correction.
Evidence: Offline replay of the A01 checkpoint against agent-system-core
reproduces "direct relation cannot have result" (SELF); design-only change.
Impact: Adds a design doc, an implementation plan and the task card; no
product code, paid request, instance config or deployment.
Refs: .task/feature-fast-slow-o2-a01-evidence-design.md
Co-authored-by: Cursor <cursoragent@cursor.com>
Why: include the current integration baseline before verification.
Evidence: fetched origin/main=7e19cf3e182b566bdc48a7e690e44ff11b4ab33c.
Impact: integrate upstream changes without rewriting task history.
Refs: task-sync
Why: Review found the design steered analysis findings to direct_relation,
which the host always downgrades, and the plan's eval/live command fails
without the live build tag.
Evidence: Verified against material_evidence.go and go list ./eval/live/;
the live-tag test runs offline (SELF).
Impact: Docs and task card only.
Refs: https://git-home.u1680832.nyat.app:30319/weichen/Agent-System-Dev/pulls/662
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-a01-evidence-design.md -> .task/archive/feature-fast-slow-o2-a01-evidence-design.md; status 已完成（合入前闭合）; PR #662https://git-home.u1680832.nyat.app:30319/weichen/Agent-System-Dev/pulls/662.
Impact: task metadata only; the card is archived within PR #662 and lands with its merge commit.
Refs: task.sh close --self
Why: include the current integration baseline before verification.
Evidence: fetched origin/main=ed3847c85ce111a74f0cb100908abfb40f62db07.
Impact: integrate upstream changes without rewriting task history.
Refs: task-sync
Why: include the current integration baseline before verification.
Evidence: fetched origin/main=6945b6701f7579bf4e31def283825e392c33ad16.
Impact: integrate upstream changes without rewriting task history.
Refs: task-sync
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feature/fast-slow-o2-a01-evidence-design 任务卡
任务主记录：<PR 链接，交付前填写>；状态：进行中；owner：weichen
基线与授权
权威仓：ssh://git@git-ssh.u1680832.nyat.app:31411/weichen/Agent-System-Dev.git；目标分支：main；R0（initial_base_sha）=
556201541c工作区：/home/weichen/projects/Agent-System-Dev-wt-feature-fast-slow-o2-a01-evidence-design（worktree）；分支：feature/fast-slow-o2-a01-evidence-design
分支类型：standalone；root_target：main；immediate_target：main；accepting_requirements：false
需求分流：verdict=NEW；selected_initiative=无；requirement_sha256=df1a6812c2cf304f074b3d29139cfafd427960f9720935b99497ab67e5d2a646；triage_receipt=/tmp/o2a01d-20261020/triage.json；receipt_sha256=2828ea8adadd8f90cb348a28a7c750dfa85dc5a91f8d3e6877decdbed120ea27
授权与交付终点：用户 2026-10-20 选定“立项：出设计和资源提案，方向是收紧说明并让评测允许修正一次（推荐，先零付费）”。本任务只交付方案、实施计划（入仓）与源码外资源提案，经 PR 合入 Dev 后请用户审阅。未授权：产品代码改动、派遣实施 worker、任何付费请求或 A01 复验、实例系统层配置写入、部署。
交付模式：goal-first（目标、范围和交付终点一次确认；范围内连续推进）
实施执行：agent-per-unit（配置：AGENT-EXECUTION.md）
合入执行：agent（已授权交付范围内，Review 通过、冲突解决且当前 HEAD 的 CI 通过后合入）
人工决策点：仅限目标/范围/验收变更、重大取舍、高后果操作或无法自动判定的业务验收
当前阶段：方案与计划已成稿，待合入后人审；当前增量：D1（设计文档，无实施单元）
流程依据：仓库根目录 policy/delivery.md（归档后仍按仓库根目录定位）
目标与非目标
目标：针对 O2 P1 第二段 A01 被核心校验拒绝（
checkpoint.evidence: direct relation cannot have result）后评测立即停止的问题，产出零付费的方案与实施计划：收紧publish_work_checkpoint工具说明/字段说明与材料任务提示，让模型按 mode 填对 evidence；评测把“首次被拒即停”改为“累计 2 次即停”；并提出一次 A01 付费复验的资源提案。非目标：不改 core 校验器与宿主证据归一语义；不改 schema 结构（不引入
oneOf）；不改路由契约/传输层；不实施、不付费、不写实例配置、不部署。Agent 实施收据
路由与 fail-stop 规则见根目录 AGENT-EXECUTION.md 与 policy/delivery.md；每次尝试一行，原始日志留在源码外收据路径。
.task/**、docs/superpowers/{specs,plans}/**）关联方向与规划
docs/superpowers/specs/2026-10-19-fast-slow-o2-route-contract-eof-design.md；P1 结论见.task/archive/feature-fast-slow-o2-p1.md）需求分析
方案与计划
docs/superpowers/specs/2026-10-20-fast-slow-o2-a01-evidence-design.md（sha256 前缀 9a90a0848d1095bf；Backend 依据 74e5396）docs/superpowers/plans/2026-10-20-fast-slow-o2-a01-evidence-plan.md（sha256 前缀 cb877673ce3cff17；增量 I1 Backend、I2 Dev 改钉、P2 付费复验）~/.local/share/agent-system-evidence/fast-slow-o2-a01e-20261020/resource-proposal.md（源码外，sha256 前缀 bd00293f0b8240e7）阶段记录
探索试验与迭代
/tmp/o2a01-replay，同参数 + core 当前版本同步记录
556201541c556201541c证据（Evidence）
交付调度
结果与验证（完成后填写）
make test+make build）。规划进展与下一步
o2a01e-i1-backend-evidence-guidance）与 I2（Dev 改钉）合入与清理