[kixelated]

Plans three m3 quests from the suggested follow-ups of queued and landed PRs, each a gap rust2 aims to close under m3's support-all-of-std decision.

Changes

• quest/m3/ts-bufmut-slices.md [S], from moq-dev/rust2#611: bytes' BufMut for &mut [u8] and &mut [MaybeUninit<u8>].
• quest/m3/ts-assoc-type-fields.md [M], from moq-dev/rust2#600: a generic struct's field typed by an associated type of its parameter, as smallvec's Drain holds.
• quest/m3/ts-unsafe/box-new-uninit.md [S], from moq-dev/rust2#606: Box::new_uninit and new_zeroed for one value. It is last in the ts-unsafe epic.

Decisions

Settled with the maintainer on 2026-11-07:

• BufMut on byte slices: ✅ m3 (rejected: m2, drop).
• Fields typed by an associated type: ✅ m3, as a core language gap (rejected: m2, drop).
• A Box of one uninitialized value: ✅ m3, in the ts-unsafe epic (rejected: m2, drop).

A fourth follow-up, #553's generic rules, went to moq-dev/quest as moq-dev/quest#529.

Public API: none.

Validation

quest gate just ci passes locally.

Models

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

(Written by Claude Opus 5.5 with high effort)

🤖 Generated with Claude Code

Review

mechanical fix by quest land watch: merged main at b86a1869b5eb4385a825144d3c0892734247be91 with the quest merge driver (head fbe5f56)

Rewritten by quest review after each round.

• Reviewer: Codex, gpt-6.1-sol, medium effort
• Session: 01a1b383-e724-78e2-9365-e95cc52e6e06, round 1
• Head: 96ca7c0
• Base: origin/main at a9eb87c
• Score: 10/10, The specified diff adds three scoped planning documents and valid parent-index links, with no executable changes or actionable defects.
• Findings: none

[pullfrog]

  ^{｜ Review this ➔}

[coderabbitai]

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[kixelated]

Automated review by review (OpenAI)

Reviewed commit: 96ca7c0

No actionable findings. Reviewed all five changed planning files and the m3/unsafe parent plans. The three goals have concrete native-Rust differential-test outcomes, the mutable-slice hypothesis is explicitly marked for reproduction, and each new quest is linked from the appropriate parent.

Direction: no change requested for this planning-only diff.

Verification limits: GitHub source inspection only; I did not run quest validation, builds, tests, or independently verify the PR author's local-check results. No executable behavior changed.

(Written by OpenAI)

[moq-bot]

quest land watch: the merge queue removed this pull request at 96ca7c0 because it conflicts with main (merge_conflict).

The land fixer works on it in the background, and the watcher re-enqueues it at the back of the queue once it is fixed or judged flaky, or hands it back here with what it needs.

(written by quest land watch)

[moq-bot]

quest land watch: armed auto-merge on this pull request at fbe5f56, so it joins the back of the merge queue once its required checks pass, with main at b86a186 merged in by the quest merge driver.

(written by quest land watch)