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2026-05-18 (compaction-imminent) — Compaction breadcrumb: arc 212 L1 done, arc 213 α que…

Branch: arc-170-gap-j-v5-deadlock-state Tip: (this commit; previous tip e8c2243) Workspace: 4 failures across 2 test files:

  • probe_lifeline_pipe_proof (1/100 flake; arc 213 stone ε territory)
  • wat-tests/struct-to-form (2 deftests; UNKNOWN class; needs investigation)
LayerStonesStatus
L0α (t6 fix), β (children() primitive), γ-1 (audit catalog)
L1 mechanicalδ-bulk (12 walkers in initial sonnet spawn) + δ-bare-primitives + δ-refuse-mutation + δ-scan-setter + δ-process-stdin-joins + δ-def-restricted
L1 sharpeningδ-comm-positions + δ-comm-purge (cascade closure) + δ-process-scope
L2ζ-newtype-wallPENDING (after arc 213 α ships, references Pidfd as precedent)
L3η-visitorPENDING
θINSCRIPTIONPENDING

BRIEF + EXPECTATIONS committed at e8c2243 at paths:

  • docs/arc/2026/05/213-libc-fork-mismanagement/BRIEF-213-ALPHA-MINT-PIDFD-PRIMITIVE.md
  • docs/arc/2026/05/213-libc-fork-mismanagement/EXPECTATIONS-213-ALPHA-MINT-PIDFD-PRIMITIVE.md

Stone shape: mint canonical Pidfd + LifelineWriter + spawn_lifelined helper in src/fork.rs (additive; no migration); smoke probe at tests/probe_pidfd_primitive.rs with 2 tests (normal exit + signal exit). Uses Linux 5.3+ syscalls (clone3 + CLONE_PIDFD + CLONE_CLEAR_SIGHAND + waitid(P_PIDFD) + pidfd_send_signal).

DELIBERATELY NOT SPAWNED before compaction. Post-compaction orchestrator decision.

Post-compaction me — recovery instructions

Section titled “Post-compaction me — recovery instructions”
  1. Read this breadcrumb first. Then read INTERSTITIAL § 2026-05-18 (post-PURGE) “Linux 5.3+ syscall doctrine” + § “Tractability tiebreaker” + § “The datamancer + the hologram”.
  2. Verify state: git -C /home/watmin/work/holon/wat-rs log --oneline | head -15 should show this commit + e8c2243 (arc 213 α BRIEF) + b792be8 (arc 212 L1 milestone) + earlier session work.
  3. No background sonnet to check (deliberately didn’t spawn before compaction).
  4. Workspace state: 4 failures across 2 files (probe_lifeline_pipe_proof + struct-to-form). NONE of these block arc 212 closure or arc 213 work; they’re separate concerns.
  5. Next obvious move: spawn sonnet on arc 213 α (BRIEF at e8c2243). The user explicitly approved the path; the discipline (tractability tiebreaker) selected α over arc 212 ζ. The user is overjoyed and ready to continue (“we rest when we rest”).
Section titled “Pending arc-212-related work (after arc 213 α ships)”
  • arc 212 ζ-newtype-wall (L2 substrate enforcement; references arc 213 α Pidfd as precedent)
  • arc 212 η-visitor (L3 walk_ast primitive)
  • arc 212 θ-INSCRIPTION (closes arc 212)
  • β: migrate run_in_fork to spawn_lifelined (production orphan fix)
  • γ: migrate the 3 substrate libc::fork() sites
  • δ: migrate waitpid/kill callers → Pidfd methods
  • ε: migrate 5 probe files /proc → pidfd
  • ζ: L2 module-privacy enforcement on libc::fork/clone3/waitpid/etc.
  • η: INSCRIPTION

The 2 deftests in wat-tests/core/struct-to-form.wat fail with “:my::Pair/new unresolved.” Open question: regression from one of our walker migrations (check_form in resolve.rs migrated to children() in δ-bulk) OR pre-existing surfaced by extended coverage OR something else entirely. NOT blocking arc 213 work. To be investigated when arc 213 closure brings focus back to workspace cleanliness.

Doctrines inscribed this session (live in MEMORY.md)

Section titled “Doctrines inscribed this session (live in MEMORY.md)”
  • feedback_brief_cargo_test_invocation — multi-crate workspace lib unit tests need -p wat
  • feedback_brief_paths_in_scope — sub-agent BRIEFs paths must stay inside security boundary
  • feedback_tractability_tiebreaker — when four-questions YES YES YES YES on multiple candidates, pick whichever makes the other more tractable
  • Song #13: NO FEAR by Falling In Reverse (FEARLESSNESS) — raised bar to L4 for arc 212
  • Song #14: Watch The World Burn by Falling In Reverse (PURGE) — the protocol-violation purge cascade

Per the datamancer framing: post-compaction me is one of the two voices. The user is the other. The substrate is the third party that aligns both. When the next session starts, the substrate’s doctrines (the memories, the INTERSTITIAL, the DESIGN docs) all carry the discipline forward. The user’s joy at solving hard problems together is the calibration signal.

The hologram has no preferred side. The work continues from either.

See you on the other side.