[huangruiteng]

Goal And Delivered Outcome

• Outcome basis / optional anchor: Base branch commit 385771e (feat(research): record and estimate LoopX Turn packet input #7170) added a second private bare SHA-256 matcher, making the repository's content-digest single-owner guard fail on main and on unrelated PRs.
• Goal/source and gap: Route trajectory input digest validation through the existing canonical owner and register the reviewed consumer.
• Observable before → after, with the validation row that proves it: The single-owner test previously reported trajectory_input_usage.ts:24 as an offender. The focused 27-test suite now passes.
• Issue/task and intended base: Regression from feat(research): record and estimate LoopX Turn packet input #7170; base main.

Author Declaration

• Written by: OpenAI Codex (GPT-6 model agent)

Implemented against

• Specification and revision: tests/control_plane_ts/content_digest_single_owner.test.ts at base b8b9c1d.
• Criteria:

Criterion (spec clause)	Disposition	Symbol / path	Test or command
Bare SHA-256 validation has one canonical matcher owner	implemented	BARE_SHA256_PATTERN	focused digest-owner suite
New canonical consumers are explicitly reviewed and pinned	implemented	CANONICAL_CONSUMERS	focused digest-owner suite
Trajectory attribution behavior remains unchanged	implemented	estimateTrajectoryLoopXInput	trajectory input usage suite

• Self-check before submission: Reviewed the introducing commit, changed only the matcher import/use and the pinned consumer inventory, ran focused tests and control-plane type checking, and scanned the two-file diff.

Scope And Continuation

• Completed scope and remaining work: Complete within this scope.
• Slice boundary / successor: N/A.

Validation

• Tested revision: 1422b6d
• Run state: finished
• Input classes: synthetic

Check kind	Result	Public-safe evidence / limitation
unit	passed	Digest-owner and trajectory input usage suites: 27/27 passed.
static	passed	npm run typecheck:control-plane.
static	passed	git diff --check and changed-file boundary scan passed.

• Coverage and gaps: The guard exercises repository-wide matcher ownership; trajectory tests cover valid and invalid input attribution paths. No full suite was repeated because the focused failing shard and behavior suite pass and the change only replaces a matcher with its identical canonical export.
• CI dependency: dashboard-browser (2) fails at the unchanged research-history closed-scope assertion. The same base-branch failure is reproduced on unrelated PRs and is fixed independently by fix(research): restore digest ownership and deterministic scope closeout #7208; merge fix(research): restore digest ownership and deterministic scope closeout #7208 before rerunning this exact head.

Frontend / Visual Evidence

• UI impact: none
• Before: N/A
• After: N/A
• First viewport and preview: N/A
• States and viewports shown: N/A
• Source data: none
• Attention review: N/A
• Craft review: N/A

Type of Change

• Bug fix
• New feature
• Breaking change
• Refactoring (no functional changes)
• Documentation update
• Test update

LoopX Area

• Control plane (goals, todos, quota, scheduler, registry, runtime)
• Benchmark boundary (adapters, runners, verifiers, scoring, evidence)
• Capability or extension (providers, adapters, skills)
• Public docs or presentation surface (README, protocols, dashboard)
• Build, packaging, installer, or CI
• Host or runtime integration

Technical Direction

• Direction / acceptance reference, when applicable: Core control-plane hardening.

Shared-authority RFC fixture impact

N/A.

Boundary Checklist

• Neither the diff nor this PR body/comments/attachments disclose private state, credentials, raw traces or verifier output, internal links, or local machine paths.
• I did not duplicate maintainer-owned benchmark work.
• I kept the change scoped to the regression.
• No paired RFC changed.
• UI impact is none.
• Every commit includes a DCO Signed-off-by trailer.

[loopx-agent]

Reviewer: model_agent; gpt-6.1-sol; OpenAI; runtime_reported; reasoning_effort=max

Approval conclusion — APPROVE at 1422b6d8db341e0e0b5112c06d7623af69ab40bc.

动机

修改核心代码的维护者运行既有摘要所有权检查时，会被轨迹输入归因模块的第二份正则挡住，即使本次改动与它无关。
基础版本报告同一个额外匹配器；当前改用已有的统一匹配器并登记实际消费者，原检查通过，输入归因的完整输出保持一致。
独立重现的摘要所有权检查从 16 过、1 败变为 17 全过；连同 10 项归因测试共 27 通过，72 组汇总函数的完整输出在两版逐字相等。
本次只修复重复匹配器及其维护检查，不改变输入归因算法、百分比口径或模型行为；全仓、安装态与长期收益不在本轮验证范围。

剩余范围：未重复全仓套件、安装态 Research App 或真实模型；完整输入结果与当前源码检查有证，不据此声称语义理解或净成本收益。

改动思路

删除重复表达式并复用现有常量即可解决问题；登记消费者没有增加例外，也没有削弱全库检测、引入新状态或第二个校验器。
当前 PR 完成统一摘要校验及既有归因行为保持，不扩展 Research 能力或页面。
消费者清单继续要求实际导入并使用统一导出，第二个匹配器仍会触发失败。只把数组顺序从 [a-f0-9] 改成 [0-9a-f] 不会改变允许的字符；本次同时保留原类型检查、锚点、错误和非全局正则，避免引入状态性的重复调用差异。

具体改动

完整差异为 2 files +3/-1。没有独立书面规格专门定义这一消费者；依据是改动前 tests/control_plane_ts/content_digest_single_owner.test.ts 在 b8b9c1d77c17edf75e0d8860e533a7785b9bd224 的全库检测及消费者固定清单，以及已复现的当前基础版本失败。完整 PR 只有两文件、三行增加和一行删除；新增导入和登记之外没有算法、配置、协议或界面变更。

关键代码讲解

• digest：保留原类型检查和失败消息，只把局部裸 SHA-256 正则替换为统一常量；非法格式仍仅令输入归因不可用。
• estimateTrajectoryLoopXInput：真实消费方继续绑定来源、Goal、会话和同请求用量，再计算明确记录的输入；完整、部分及不可用结果和独立计数保持。
• BARE_SHA256_PATTERN：既有字符类与原表达式等价，保留锚点且无状态性全局标志；消费者登记不扩大检测例外。

对主干的风险

独立使用实际 summarizeTrajectoryCodexUsage 构造 72 组输入：五个摘要位置分别覆盖有效小写、数字、大小写/前缀/长度/空白/换行/非字符串，以及缺失 trace 和未重放输入。两版完整 JSON 字节完全一致；错误只令归因 unavailable，独立请求计数仍为 100。不是只比较状态码或聚合测试数量。相同单一归属与归因套件在不可变基础版本为 26 过、1 败，在当前为 27 全过；没有改写检测器或扩大例外。

完整保留早期质量回执不匹配导致的聚合失败；重新针对当前精确范围资格化后通过。当前类型检查、四项直接和两项选定 premerge 检查，以及两文件公共边界检查通过。 精确范围 cqr_d9c344ffb07da5df7c25 为 pass；质量记录检查一致性，不能替代上述实际执行证据。没有查询、轮询或等待远端 CI，代码批准也不代替合并准备度与维护者权限。

我的整体评价

本次局部目标为 goal_achieved；长程控制边界 preserved，维护者处理无关 PR 的路径 improved。统一既有规则比保留重复正则或增加豁免更小、更易回滚；没有需要在本 PR 继续扩大的重构。
删除重复表达式并复用现有常量即可解决问题；登记消费者没有增加例外，也没有削弱全库检测、引入新状态或第二个校验器。 当前 PR 完成统一摘要校验及既有归因行为保持，不扩展 Research 能力或页面。

视觉审查不适用：已检查完整 diff、现有 Research 汇总/Agent CLI 等待入口及已有 Todo/设置消费者，没有渲染布局、控件或新能力入口变更。未验证范围：未重复全仓套件、安装态 Research App 或真实模型；完整输入结果与当前源码检查有证，不据此声称语义理解或净成本收益。 事实与未知分别保留，不以测试、回执或 PR 数关闭更广成果。

English verdict: APPROVE. The duplicate matcher is removed through the existing canonical export, without weakening the ownership guard. All 27 focused tests pass and 72 complete production-summarizer outputs exactly match the immutable base. This is a bounded maintenance fix; no installed/model, whole-suite or long-horizon benefit is claimed.