[kixelated]

Proposes dropping quest/m2/speed/bench-host-lock.md: main already delivers its Goal.

Problem

The quest was planned at 18:58 UTC on 2026-11-06, in #401, after one collect --host kixtop deleted the shared copy that #399's collection was building from. Its plan was to extend #397's VPS flock to every host and skip a held host as busy.

#399 then merged at 20:26 UTC and fixed that clobbering another way (admin/bench-report, collect_host):

• Each collection extracts into its own mktemp -d copy and removes only that copy. No collection clears a path another one uses.
• The build, the benchmarks, and admin/build-cost all run under quest gate --host, which holds the whole host, local or remote. A second collection's run waits until the first one ends, so the shared target directory never has two runs at once.

The only part of the Goal that main does differently is that a second collection waits for the host instead of recording it as busy. #399 was reviewed and merged with the wait, after this quest was planned, so this PR takes that as the newer decision.

Approach

• quest rm deletes the quest and its link from quest/m2/speed/README.md.
• No code change.

Waiting

• Maintainer: delete the quest, or keep it for skip-as-busy? Options:
  1. Delete (recommended). fix(bench-report): hold each host with quest gate --host, and measure macOS noise #399's per-collection copies and quest gate --host already stop any collection from deleting or measuring over another one, on every host. Waiting returns a measurement where a skip would return only a busy record. To accept, mark this PR ready and merge it.
  2. Keep the quest, rewritten to skip instead of wait. collect would check whether the host is held and record it as busy instead of queuing. Every host would need a lock that is visible from outside quest gate, and macOS ships no flock(1). Choose this by commenting here, and the quest gets rewritten in this PR.

Notes for #397

#397 conflicts with main in admin/bench-report (git merge-tree reports a content conflict). Its host_script still clears the shared {work}/src and {work}/result.json. When it merges main, it should keep #399's per-collection copy and gate. Only the VPS lease, which the hosts' other tooling also takes, stays specific to #397. No change here depends on that.

Impact

• No public API or wire change. Only quests change.

Models

Size: XS
Implementer: Claude Code, claude-opus-5-5, high effort

Review

Skipped: a quest deletion produced by quest rm, with no code, too trivial to need a review. quest check passes.

(Written by Claude Opus 5.5)

🤖 Generated with Claude Code

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Commits

Reviewing files that changed from the base of the PR and between 0287be3 and e6b3831.

Files selected for processing: 2

• quest/m2/speed/README.md
• quest/m2/speed/bench-host-lock.md

• Autofix · Keep fixing CodeRabbit findings and required CI, and resolving merge conflicts

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[kixelated]

Automated review by review (OpenAI)

Reviewed e6b3831. No actionable findings in the quest deletion and matching index removal. The existing collect_host uses a unique temporary source directory, wraps the build/benchmark/build-cost run in quest gate --host, and cleans up only that source directory, supporting the stated direction of retaining queued host access rather than adding skip-as-busy behavior.

Verification: GitHub-only static inspection of both changed files and the relevant collection code. I did not run quest check, concurrent collections, or verify the gate implementation on each host.