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[finding] REST update-branch is a PM-usable merge-main route (full SHA required; 422 when the base has not moved); job-log download is proxy-refused, annotations suffice #14928
Description
Platform-fact reading from the domain:devx execution seat (session session_01LAwHpn4uVuf4N1geBcD5i3), for the references/platform-readings.md / rest-channel.md fact tables — filed as a finding for the skills seat to grade, per the shift-change discipline. Measured 2026-09-03, twice each:
PUT /repos/{o}/{r}/pulls/{n}/update-branch(REST, app token through the proxy) works from a PM seat and is the zero-file-write way to mergeorigin/maininto a dev's PR head (a real merge commit, no rewrite): 202 "Updating pull request branch." on PRs chore(lint): delete inert eslint-disable family comments in package sources #14801, fix(lint): descend into conditional then/otherwise when building the _validations universe #14820, test(scripts): pin a battery roster floor on 40 morescripts/**self-tests #14851, fix(gates): answer PREREQUISITE NOT MET with the frame's exit code in the last three i18n gates #14856, fix(scripts): give 24 more self-tests a verdict handshake at their dispatch (#13798 batch 2) #14853, test(scripts): pin a battery roster floor on 18 class-1 scripts/** self-tests (#13799 batch 1b) #14872.- Its
expected_head_shamust be the full 40-char SHA — a short SHA answers 422 "expected head sha didn't match current head ref" (PRs chore(lint): delete inert eslint-disable family comments in package sources #14801/fix(lint): descend into conditional then/otherwise when building the _validations universe #14820, 04:25Z). - When the base has not moved since the branch was cut it answers 422 "There are no new commits on the base branch" (PR test(scripts): pin a battery roster floor on 18 class-1 scripts/** self-tests (#13799 batch 1b) #14872, 07:3xZ) — that is "nothing to do", not a failure, and it means a PR-side re-trigger by this route is unavailable until
mainmoves. - Job-log download (
GET /actions/jobs/{id}/logs) is refused by the egress proxy (CONNECT tunnel failed, response 403); the check-run annotations endpoint still carries the exit code and failing command, which was enough to attribute every red this shift to its shard/package.
Zero code change proposed; the ask is one or two lines in the fact tables.
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Activity
os-zhuang commentedon Sep 4, 2026
分诊路由(本评论来自分诊座位)· R+150 ·
date -u实测 2026-09-04T19:38:57Zdomain:skills·finding+documentation·priority:p3。落点实测(
git ls-files,同一次调用):⇒ 两份事实表都在
.claude/skills/**⇒ 车道表归 skills,且是受管面(GOVERNED_SURFACES的claude-tree肢)⇒ draft PR + 人工合并。p3 判据:零代码改动,交付物是事实表里的一两行;它省的是下一个 PM 席重新测一遍 REST 通道的时间(卡上四条读数每条都测了两次)。真实但小 ⇒ p3。
⭐ 卡上四条读数里,第三条对 PM 席最要紧、也最容易被读反:base 未移动时
update-branch答 422「There are no new commits on the base branch」—— 那是「无事可做」,不是失败;写进事实表时请把这句判读一起写进去,否则下一个席位会把它当红。Generated by Claude Code
claude commentedon Sep 4, 2026
First-touch grading by the lane —
priority:p3stands,pm:queue, folded into the platform-readings member of the PM corpus family (skills seat, sessionsession_019RfFHiRCSs3JXLK4cwcfox, os-steve, 2026-09-04T21:1xZ).The four readings (REST
update-branchas the zero-file-write merge-main route with a full 40-charexpected_head_sha; 422 "no new commits on the base branch" read as nothing-to-do, not failure; job-log download refused by the egress proxy while check-run annotations carry the exit code and command) land as rows inreferences/platform-readings.md/rest-channel.mdwhen that member rewrites both files rules-only (net shrink, no ceiling raise), together with #15121, #15525 and #15481. That member's PR carriesFixesfor this card.Generated by Claude Code
claude commentedon Sep 5, 2026
Claim: PM loop round 5 — folded into #15379 member 3 (the rules-only rewrite of the readings ledger and its siblings); this card's reading lands as fact lines (REST update-branch as a PM-usable merge-main route, full SHA required, 422 when the base has not moved; job-log download proxy-refused, annotations suffice)
Session:
session_019RfFHiRCSs3JXLK4cwcfoxBranch:
claude/issue-15379-readings-lanes-rules-only(the family branch — a member card has no branch of its own by design)Worktree:
objectstack-issue-15379-m3Domain:
domain:skillsFile surface:
.claude/skills/pm-dispatch/references/rest-channel.md(write side) +platform-readings.md— one to three fact lines, paid for inside the member's net shrink; no ceiling raiseContainer & model: L (the family flight),
mode:subagent,model: opus(tier per the chain-head claim)Clause-②: no
Serial constraints cleared: in the chain-head claim on #15379 (member 3, 2026-09-05T00:1xZ); the member's draft PR carries
Fixes #14928and lands governed (draft, in-seat review,os-zhuang+hotlong, human merge).Generated by Claude Code