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2026-05-15 — Pre-compaction breadcrumb: Stone C in flight

State at this commit (85ecb0c on arc-170-gap-j-v5-deadlock-state):

Shipped:

  • Stone A (92926a2): bootstrap_wat_vm_process extracted; substrate-owned bootstrap helper exists at src/freeze.rs; BootstrapArgs + ProcessRuntime types; tested by tests/probe_bootstrap_wat_vm_process.rs.
  • Slice 1i (bc64691): substrate-wide structured-stderr-only enforcement. spawn-process / fork-program child exits emit #wat.kernel/ProcessPanics EDN. Slice 1i SCORE on disk.
  • Gap K (b015b1d): run-hermetic-driver drain-then-join. Detection 0 fires.

In flight at compaction:

  • Stone C BRIEF + EXPECTATIONS committed at ba6a4d8. Sonnet running in background. ScheduleWakeup at 02:03:00 server time. 10-row scorecard. Substrate refactor + wat-level Sender/Receiver from-pipe wrappers + consumer sweep + TIERS.md amendment.

Recovery breadcrumb for post-compaction me:

  1. Read first: this file (you’re here) + RUNTIME-BOOTSTRAP-BACKLOG.md + BRIEF-STONE-C-SPAWN-PROCESS-STDIO.md + EXPECTATIONS-STONE-C-SPAWN-PROCESS-STDIO.md
  2. Check git state: git log --oneline -10 on arc-170-gap-j-v5-deadlock-state. If a Stone C SCORE doc + commit landed past 85ecb0c, sonnet succeeded; verify it independently (FM 9 + path-honesty audit on probes) before doing anything else.
  3. Check working tree: git status --short. If dirty with Stone C edits (src/spawn_process.rs / wat/kernel/queue.wat / wat/test.wat / tests/probe_spawn_process_.rs / SCORE-STONE-C-.md), sonnet returned uncommitted — verify the 10-row scorecard from EXPECTATIONS independently, then atomic commit. If clean past 85ecb0c, sonnet either hasn’t returned yet OR was killed.
  4. Process state: pgrep -af "target/release/deps/test-" — orphans if any. Reap with pkill -9 -f "target/release/deps/test-" before any new cargo run.
  5. If sonnet still pending: the agent ID ad0619df5a712b2ce won’t be useable across compaction (orchestrator-side reference dies); future-me checks the task completion notification or assumes sonnet completed and verifies via disk. ScheduleWakeup at 02:03 fires regardless.
  6. Baseline expectations: pre-Stone-C workspace was 167 pass / 7 fail / 0 detection. Post-Stone-C may shift (consumer migration adds probes; pattern-2 teacher firings should be 0 after consumer sweep). Verify honestly.
  7. Next stones after Stone C: B (wat-cli shim), D (spawn-thread bootstrap_wat_thread), E (apply_function context check), F (Pattern 3 substrate-author scan), G (docs). Critical path: A→C done → B+D parallel → E → F → G.

The user’s directive 2026-05-15 (verbatim, load-bearing): “we’re proving this shortly - make notes in 170 so we don’t forget.” The “proof” is the recursive wat-vm tree (L1→L2→L3 stdio composition). Stone C lands the foundation; the proof follows.

Open architectural threads (parking lot for post-Stone-C work):

  • arc 195 stub: Struct/from kwarg constructor (Process struct + similar are the immediate beneficiaries)
  • arc 109 § I rename queue: raise!panic!, string::concatString/concat, etc.
  • arc 147 typed-Value Rust-construction class (related-class section appended 2026-05-15)
  • The 7 svc-test workspace failures (5 svc + 2 tmp) — surfaced real diagnostics post-slice-1i but underlying defects still pending investigation

Memory entries inscribed this session (post-compaction me check MEMORY.md):

  • feedback_substrate_owns_not_callers_match (the cognitive lesson behind Stone A/C framing)
  • feedback_brief_constraint_contradictions (BRIEF authoring discipline; corrected hard-constraint pattern)
  • feedback_eprintln_is_terminal (eprintln/raise!/assertion-failed! taxonomy)
  • feedback_asking_to_read_means_read (“if asking to read, just read”)
  • COMPACTION-AMNESIA-RECOVERY.md § FM 17 (discipline-after-pushback meta-FM)

The discipline cascade is on disk. The architectural recognition (fractal wat-vms) is in this file. The work-in-progress is named at this breadcrumb. Compaction-survival is engineered; future-me has what it needs.