I read this as implementation of Todo 3 only - I’ll inspect the plan, repository rules, Python references, and existing profile persistence patterns, then drive the sidecar red-to-green and verify it end to end.


I’ve confirmed Todo 2 is isolated in the gateway and the canonical profile reader has no weekly sidecar awareness. I’m pinning that unchanged behavior first, then I’ll introduce tests whose first failure is the missing sidecar contract.


The sidecar is green on its focused behavioral suite, including lock-barrier concurrency, explicit torn-tail repair, and interior corruption rejection. I’m moving through static checks, canonical regressions, and the real-store manual driver now; any issue found here will be fixed only in the new sidecar seam.


DoneClaim:
  task: "Todo 3 - Implement the append-only day-status sidecar"
  changed_files:
    - dualcoach/profile/checkin_cli/weekly_operations.py
    - dualcoach/profile/checkin_cli/weekly_operations_store.py
    - dualcoach/profile/tests/test_weekly_operations.py
    - .omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar.json
    - .omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar-red.json
    - .omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar-cleanup.json
  tests:
    - "Focused: 14 passed"
    - "Existing event/store regressions: 49 passed"
    - "LSP, ruff, ty, basedpyright, compileall, no-excuse: PASS"
  manual_qa:
    - "Append, replay no-op, reopen/read: PASS; canonical SHA unchanged; files mode 0600"
    - "Interior byte flip: typed corruption, exit 17, no mutation"
    - "Explicit torn-tail repair: retained 1 row, removed 7 bytes"
  adversarial_classes:
    - malformed input and wrong identity/day
    - conflicting replay and illegal/reversed transitions
    - canonical pin drift and interior corruption
    - barrier-synchronized concurrent writers
    - restart, torn tail, and old-reader coexistence
    - prompt injection not applicable; cancel/resume covered by fsync/reopen/repair
  cleanup: "Disposable roots, driver, helper, virtualenv, caches, and processes removed; prior dirty work preserved"
  risks: "No known blocker. Store module is healthy but in the 200-250 LOC warning band at 223 pure LOC; split before substantial future growth. Domain and persistence each retain one responsibility, file input is typed at the boundary, canonical events remain untouched, and no Todo 4 behavior was added."
  evidence_path: ".omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar.json"


I read this as a focused Todo 3 integrity repair - I’ll reproduce and receipt all four verifier failures first, then harden descriptor-relative persistence, split if needed to stay under 250 LOC, and rerun the complete Todo 3 verification surface.


The verifier’s four defects reproduce directly against the current store design: path validation is check-then-open, data inode metadata is incomplete, sequence validation is only per day, and logical keys are trusted after hash validation. I’m now pinning those exact failures before replacing the filesystem seam.


All four original repros and the expanded inode/path substitution suite are now green. The store is split into state validation and a descriptor-relative filesystem boundary, both below the size ceiling; I’m checking type/lint diagnostics before the regression and manual evidence pass.


DoneClaim:
  task: "Todo 3 r2 - Repair append-only day-status sidecar integrity"
  changed_files:
    - dualcoach/profile/checkin_cli/weekly_operations.py
    - dualcoach/profile/checkin_cli/weekly_operations_fs.py
    - dualcoach/profile/checkin_cli/weekly_operations_store.py
    - dualcoach/profile/tests/test_weekly_operations.py
    - dualcoach/profile/tests/test_weekly_operations_integrity.py
    - .omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar-r2-red.json
    - .omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar-r2.json
    - .omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar-r2-cleanup.json
  tests:
    - "RED: 4 failed for the four verifier repros"
    - "Focused: 28 passed, including original 14 and 14 integrity tests"
    - "Existing event/store regressions: 49 passed"
    - "LSP, ruff, ty, basedpyright, compileall, no-excuse: PASS"
  manual_qa:
    - "Symlinked plans parent: typed corruption; outside entries remained 0"
    - "Hard-linked 0600 data inode: typed corruption with st_nlink=2"
    - "Canonical sequence 5 then 4: typed conflict; SHA unchanged"
    - "Rehashed arbitrary logical key: typed corruption; SHA unchanged"
  adversarial_classes:
    - customer-root and plans-parent symlink or replacement
    - data and lock symlink, hardlink, non-regular entry, unsafe mode, and replacement
    - ownership, mode, link-count, and descriptor/name identity drift
    - barrier-synchronized root, parent, data, and lock swaps without sleeps
    - global canonical reversal and same-sequence digest disagreement
    - attacker-recomputed logical key and row digest
    - prior replay, transitions, correction, concurrency, restart, torn-tail, corruption, and legacy-reader behavior
  cleanup: "Disposable drivers, roots, patch helpers, compile caches, virtualenv, pycache, and processes removed; original and independent needs-fix evidence retained."
  risks: "No known blocker. Domain, descriptor-relative filesystem boundary, and state store each have one responsibility and remain below 250 pure LOC. No Todo 4+ behavior or canonical reader/event change was introduced."
  evidence_path: ".omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar-r2.json"


I read this as a Todo 3-only ancestor-chain integrity repair - I’ll pin the detached-tree append race first, retain and revalidate the full descriptor/name chain from `/`, then rerun every r2 gate plus two-level ancestor replacement cases.


The r2 implementation retains only the final parent/root/plans descriptors, so its checks are internally consistent but can be detached from the configured absolute namespace. I’m pinning the exact post-`_open_root` rename/recreate outcome now, including both old and replacement sidecar inventories.


The anchored chain now retains every component from `/` through the customer leaf and verifies captured dev/inode/type/owner/link/mode/ctime metadata before plans, lock, and data mutation. The focused suite is green for final-parent, higher-ancestor, leaf replacement, and rename-back; I’m exercising those same surfaces in the disposable real-store driver before sealing r3 evidence.


DoneClaim:
  task: "Todo 3 r3 - Repair ancestor rename/recreate integrity race"
  changed_files:
    - dualcoach/profile/checkin_cli/weekly_operations.py
    - dualcoach/profile/checkin_cli/weekly_operations_fs.py
    - dualcoach/profile/checkin_cli/weekly_operations_store.py
    - dualcoach/profile/tests/test_weekly_operations.py
    - dualcoach/profile/tests/test_weekly_operations_integrity.py
    - dualcoach/profile/tests/test_weekly_operations_ancestor_integrity.py
    - .omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar-r3-red.json
    - .omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar-r3.json
    - .omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar-r3-cleanup.json
  tests:
    - "RED: detached ancestor append reproduced; AppendResult wrote only under renamed tree"
    - "Original focused suite: 28 passed"
    - "New ancestor integrity suite: 4 passed"
    - "Existing event/store regressions: 49 passed"
    - "LSP, ruff, ty, basedpyright, compileall, no-excuse: PASS"
  manual_qa:
    - "Original four r2 integrity cases still typed-fail without mutation"
    - "Final-parent rename/recreate: typed corruption; neither namespace mutated"
    - "Two-level ancestor rename/recreate: typed corruption; neither namespace mutated"
    - "Configured customer leaf replacement: typed corruption; neither namespace mutated"
    - "Transient detach and rename-back: typed corruption; no sidecar created"
  adversarial_classes:
    - complete absolute ancestor-chain detach or replacement
    - final parent and higher-level ancestor rename/recreate
    - configured leaf replacement and rename-back
    - root, plans, lock, and data inode substitution
    - symlink, hardlink, mode, owner, type, link-count, and identity drift
    - canonical reversal, logical-key forgery, hash corruption, torn tail, and concurrent replay
  cleanup: "Disposable driver, roots, patch helper, virtualenv, compile cache, pycache, and processes removed; all prior evidence and independent audits retained."
  risks: "No known blocker. Filesystem and store modules remain below 250 pure LOC at 207 and 230 respectively, both in the warning band; split before substantial future growth. Boundaries retain single responsibilities: descriptor authority and sidecar persistence."
  evidence_path: ".omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar-r3.json"


I read the selected direction as replacing customer-tree persistence, not adding another namespace check. I’ll first pin the current pre-`os.write` customer rename behavior against the new authority-root outcome, then replace the store construction and layout contract rather than extending r3’s customer-path chain.


The focused authority design is now green: the store receives only a pinned profile capability and a typed customer key; customer paths have disappeared from production persistence APIs. I’m running the disposable two-customer authority/restart/bootstrap-replacement scenario now, then the full r1-r4 and static gates.


DoneClaim:
  task: "Todo 3 r4 - Move sidecar storage authority to a pinned profile-owned capability"
  changed_files:
    - dualcoach/profile/checkin_cli/weekly_operations.py
    - dualcoach/profile/checkin_cli/weekly_operations_authority.py
    - dualcoach/profile/checkin_cli/weekly_operations_fs.py
    - dualcoach/profile/checkin_cli/weekly_operations_store.py
    - dualcoach/profile/tests/test_weekly_operations.py
    - dualcoach/profile/tests/test_weekly_operations_integrity.py
    - dualcoach/profile/tests/test_weekly_operations_ancestor_integrity.py
    - dualcoach/profile/tests/test_weekly_operations_authority.py
    - .omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar-r4-red.json
    - .omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar-r4.json
    - .omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar-r4-cleanup.json
  tests:
    - "RED: pre-write customer rename committed under detached customer tree instead of profile authority"
    - "Focused r1-r4 suite: 42 passed"
    - "Canonical event/store regressions: 49 passed"
    - "LSP, ruff, ty, basedpyright, compileall, no-excuse: PASS"
  manual_qa:
    - "Two opaque customers: one isolated row each with deterministic digest layout"
    - "Customer parent/leaf rename immediately before write: authority append succeeds once; customer inventories unchanged"
    - "Replay is a no-op; valid binding restart reads both histories"
    - "Pinned capability remains authoritative after bootstrap rename"
    - "Recreated bootstrap path fails typed and remains empty"
    - "Authority SHA values stable; no raw customer path leakage"
    - "Legacy discovery returned zero for disposable fixtures"
  adversarial_classes:
    - customer parent, ancestor, leaf, and rename-back races
    - authority bootstrap replacement and intermediate symlinks
    - marker mode, schema, inode, and hardlink drift
    - opaque customer isolation and traversal-shaped keys
    - authority child symlink, hardlink, FIFO, mode, and replacement races
    - canonical reversal, logical-key forgery, hash corruption, torn tails, restart, and concurrency
  cleanup: "Disposable authority/profile/customer roots, scripts, replacement sources, patch helper, virtualenv, caches, and processes removed; all prior evidence and audits retained."
  risks: "No known blocker. Store is in the 200-250 warning band at 228 pure LOC and should split before substantial growth. No live-data claim was made; deployment must run the typed migration preflight before enabling the default-OFF capability."
  evidence_path: ".omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar-r4.json"


I read this as a Todo 3 r5 privacy and external-binding repair - I’ll first pin raw-key byte leakage and byte-identical marker inode replacement, then make durable customer identity opaque and expand the caller-held authority binding without changing r4’s pinned-descriptor semantics.


The two failures are at distinct seams: r4 hashes only the directory segment but still serializes `customer_key`, while its binding omits marker inode metadata. I’m pinning both exact behaviors before changing the row schema or binding shape.


RED is manifest-bound to the r4 receipt and both repros fail for the intended reasons. The implementation will now make `WeeklyOperationInput` itself digest-only after construction, so raw identity cannot survive in row/result/store representations, and will make marker inode/mode/owner/link identity part of a self-consistent caller-held binding checked on every reopen.


The focused suite is now 46/46, including retained race/integrity coverage plus privacy, exact marker-swap, modified-binding, and injected digest-history failures. I’m tightening static/style issues next, then I’ll exercise drift and pinned restart behavior through a disposable authority tree.


All final automated gates are green: 47 focused tests, 49 canonical regressions, ruff, ty, basedpyright, no-excuse, compileall, and LSP. The manual run also proved privacy across recursive bytes/paths/public surfaces, valid caller-held restart, byte-identical marker swap rejection, binding/root/mode drift rejection without mutation, and pinned writes after authority rename.


I read this as Todo 3 r5 completion - report the verified privacy and authority-binding repair.

**DoneClaim**

- Raw customer identities are consumed at the trusted boundary and replaced with typed, domain-separated SHA-256 digests.
- Sidecar rows, layout, logical keys, store state, reprs, serialization, and errors contain no raw identity.
- Caller-held authority bindings now seal root and marker inode/device/mode/owner/link metadata plus canonical digests.
- Byte-identical marker replacement and binding/root/marker drift fail before mutation.
- Pinned capability and valid restart semantics remain intact.
- Focused tests: **47 passed**
- Canonical regressions: **49 passed**
- LSP, ruff, ty, basedpyright, compileall, LOC, and no-excuse checks passed.
- Manual QA and cleanup passed.

Receipts:
- `task-3-sidecar-r5-red.json`
- `task-3-sidecar-r5.json`
- `task-3-sidecar-r5-cleanup.json`


I read this as a Todo 3 r6 fixed-topology repair - I’ll first pin r5’s root-link-count acceptance, then move customer storage to validated flat files beneath a pre-sealed `customers-v1` directory and bind both fixed root inventory and customer-directory identity.


The RED is tied to r5 and fails exactly because root `st_nlink` is absent from the binding. The minimal viable topology is a sealed root containing only marker plus one pinned `customers-v1` directory, with customer data and lock files flat beneath it so normal customer growth cannot alter either directory’s link count.


The flat layout exposed a real concurrency detail during retained tests: concurrent `os.listdir()` calls on the same pinned directory descriptor share directory stream position on Linux. I’m correcting inventory reads to open an independent descriptor-relative `"."` handle each time, preserving both complete validation and deterministic concurrent writers.


The fixed topology now passes the original 48-test set, and dedicated topology coverage exercises root inventory, root/customer link counts, customer-directory replacement, malformed flat names, mismatched filename/history, and restart after adding two legitimate customers. Static typing is clean after removing decorator-dependent test parametrization.


Manual real-filesystem QA is green for flat two-customer storage, unchanged `(root, customers)` link counts `(3, 2)`, privacy, replay, pinned rename, caller-held restart, exact root-link drift, malformed names, mismatched history, and customer-directory substitution. I’m at the final full validation and receipt stage.


I read this as Todo 3 r6 completion - report the verified authority-topology repair.

**DoneClaim**

- Initializer now seals fixed root inventory and `customers-v1`.
- Customer storage is flat opaque-digest data/lock files; no per-customer directories.
- Root/customer link counts, identities, modes, owners, inventories, and layout digest are bound and actively validated.
- Extra, missing, renamed, replaced, malformed, unsafe, and history-mismatched entries fail before mutation.
- Legitimate customer additions preserve directory link counts and original-binding restart.
- Focused tests: **57 passed**
- Canonical regressions: **49 passed**
- LSP, ruff, ty, basedpyright, compileall, no-excuse, LOC, manual QA, and cleanup passed.

Receipts:
- `task-3-sidecar-r6-red.json`
- `task-3-sidecar-r6.json`
- `task-3-sidecar-r6-cleanup.json`


The r6 code confirms both seams: initialization mutates the destination before `customers-v1` exists, and inventory validation checks only filename/customer identity rather than the complete durable state machine. I’m pinning both exact r7 failures before replacing initialization and extracting shared history validation.


RED now fails for the intended reasons: marker-only residue after `customers-v1` creation failure, and acceptance of a fully rehashed late-first history. The shared validator is being moved below both store and inventory, while initialization is moving into a same-parent staged publication helper with bounded descriptor-relative cleanup.


Atomic fault coverage now proves retry-safe cleanup for partial writes, all pre-publish fsyncs, stage/customer mkdirs, absent and existing-target publication, KeyboardInterrupt/SystemExit cancellation, and post-commit parent-fsync failure. Global-history tests now block unrelated writes for transition, logical-key, chain, canonical-order/pin, source-lineage, filename/customer, interior, and torn-tail corruption, with selected repair remaining explicit.


The post-publish path is now independently recoverable as well: if exchange/rename commits and then reports failure, destination inode comparison detects the commit, removes only the exchanged empty directory with bounded cleanup, fsyncs the parent, and returns the exact staged binding. Real SIGTERM injection is also covered without terminating the test process or leaving residue.


All final gates are green: 77 focused tests (the prior 57 plus atomic-publication and global-history coverage), exact 49 regressions, zero LSP diagnostics, ruff, ty, basedpyright, compileall, no-excuse, and every module below 250 pure LOC. Real-store QA also passed atomic retry, privacy/topology, global forged/torn blocking, explicit repair, pinned rename/restart, and marker substitution.


I read this as Todo 3 r7 completion - report the independently testable atomic initialization and global validation repair.

**DoneClaim**

- Authority initialization now stages, fsyncs, and atomically publishes complete topology.
- Pre-publish faults and SIGTERM/cancellation preserve absent or exact empty destinations with no residue; retries succeed.
- Post-publish reporting failures recover and return the committed binding.
- One shared validator now enforces every Todo 3 history invariant globally.
- Any customer’s forged, corrupt, or torn history blocks unrelated mutation byte-identically.
- Repair-only capability permits exactly one selected torn-tail repair.
- Focused tests: **77 passed**
- Canonical regressions: **49 passed**
- LSP, ruff, ty, basedpyright, compileall, no-excuse, LOC, manual QA, and cleanup passed.

Receipts:
- `task-3-sidecar-r7-red.json`
- `task-3-sidecar-r7.json`
- `task-3-sidecar-r7-cleanup.json`


Before changing r7 publication or repair issuance, I’m adding event-driven repros for concurrent existing-target initialization, stage-name substitution at publication, cleanup-name substitution, and repair issuance against healthy/absent histories. These tests distinguish the future parent lock without relying on sleeps.


The RED demonstrates all five r7 gaps deterministically. I’m now making the parent descriptor the serialization capability, converting stage cleanup and publication reconciliation to inode-checked operations, and ensuring the returned capability descriptor is reopened from the published destination rather than inherited from an off-path stage.


Publication races now pass with a parent-descriptor flock held across inventory check through cleanup, explicit typed `already_initialized`, pre/post inode reconciliation, and identity-checked cleanup. Strict repair issuance now rejects healthy, absent, empty, zero-prefix, forged, interior-corrupt, and lockless targets before mutation, while operation-time binding catches changed data, lock, content, and offsets.


Real-store QA confirms one concurrent winner with typed loser and no stage residue, unchanged privacy/topology, healthy repair rejection without side effects, positive torn-tail binding, successful strict repair, and normal restart. I’m running the final 92-test focused set, canonical regressions, and all static validators now.


Every requested gate is now green: 92 focused tests including all prior 77, exact 49 regressions, zero LSP diagnostics, ruff, ty, basedpyright, compileall, no-excuse, no stage residue, and all 18 modules below 250 pure LOC. The final evidence will bind these source/test hashes and the real-store QA results.


I read this as Todo 3 r8 completion - report the verified serialized publication and strict repair capability.

**DoneClaim**

- Parent-descriptor `flock` serializes initialization without persistent lock artifacts.
- Concurrent absent/exact-empty initialization yields exactly one capability and one typed `already_initialized`.
- Stage, destination, and cleanup names are inode-bound and reconciled before returning any binding.
- Stage and cleanup substitutions never return a capability or delete unowned entries.
- Repair issuance requires a specific positive torn tail and binds exact data, lock, prefix, tail, size, and content identities.
- Invalid or changed repair targets have zero mutation/create side effects.
- Focused tests: **92 passed**
- Canonical regressions: **49 passed**
- LSP, ruff, ty, basedpyright, compileall, no-excuse, LOC, manual QA, and cleanup passed.

Receipts:
- `task-3-sidecar-r8-red.json`
- `task-3-sidecar-r8.json`
- `task-3-sidecar-r8-cleanup.json`


I read this as a Todo 3 r9 authority-model correction - I’ll first bind RED to r8’s raw-parent and in-place-repair behavior, then make the pinned parent descriptor the only continuing namespace authority, remove empty-directory exchange, and replace repair truncation with inode-checked atomic publication.


The recorded decision confirms the intended boundary: parent-path mutation by an uncooperative same-UID process is an incident, while legitimate operations are descriptor-bound and cooperative. I’m pinning r8’s four remaining architectural gaps: missing caller-held parent capability, acceptance of an existing empty child, detached-inode truncation, and unbound lock bytes.


WebSocket error


The correction is now concrete: the parent binding must account for the single authorized directory-link delta caused by absent-only publication, while every other parent identity field remains sealed. Reacquisition validates the original parent inode; opening the authority then separately validates the child inode and complete authority binding.


The implementation now has absent-only publication and atomic prefix replacement under the existing parent/customer locks. The remaining broad-looking work is test migration only: prior tests must acquire a parent capability explicitly and stop pre-creating the authority child, while superseded exact-empty expectations become typed rejection checks.


The parent capability is now the only continuing namespace authority: initialization/open/repair APIs take it directly, raw paths are acquisition-only, exact-empty exchange code is removed, and cooperative parent locking covers acquisition snapshots and all namespace operations. Repair now writes and reconciles a new inode instead of truncating the bound original.


Static validation is clean across 23 focused files, all below 250 pure LOC. The architecture now explicitly treats advisory locks as cooperative serialization only: path/name mutation that ignores them is detected as `WeeklyOperationsAuthorityCompromise`, while normal operation remains entirely descriptor-relative.


I read this as completing Todo 3 r9 - implementation, adversarial coverage, verification, evidence, and cleanup are complete.

**DoneClaim**

- Typed, sealed parent capability is the sole continuing namespace authority.
- Initialization is absent-only via `RENAME_NOREPLACE`.
- Repair atomically replaces data; the original torn inode remains unchanged.
- Lock bytes, length, digest, and identity are bound and revalidated under lock.
- Same-UID lock-ignoring mutations produce typed authority compromise.
- Focused suite: **105 passed**.
- Canonical regressions: **49 passed**.
- Ruff, ty, basedpyright, compileall, no-excuse, LSP, LOC, and real-filesystem QA passed.
- Zero stage/temp residue; caches and helper artifacts removed.
- Evidence: `.omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar-r9.json`
- Cleanup: `.omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar-r9-cleanup.json`
- Cleanup receipt SHA-256: `232b661623d365a1e9a195405907dd87aeb16704f4bb77eced91fe3814ca65ab`


I read this as a focused Todo 3 r10 cancellation fix - reproduce both post-create ownership gaps, add a narrowly scoped signal deferral helper, integrate it at those seams, and run the full required verification before returning DoneClaim.


The gap is confirmed in both publishers: ownership locals are populated only after the create syscall returns, so the installed SIGTERM handler can raise in that interval and bypass identity-safe cleanup. I am adding RED tests directly at the real `mkdir` and `O_CREAT|O_EXCL` seams before changing production code.


RED is recorded: both exact seams leak twice, and one-shot SIGTERM during each cleanup also leaves residue. The production fix will mask only SIGTERM/SIGINT during ownership acquisition, restore the previous thread mask immediately after validated identity registration, and retry an interrupted identity-safe cleanup once without masking cleanup I/O.


The GREEN seam tests now pass, including two repetitions for each real post-create interruption, exact before/after boundaries, partial-cleanup cancellation, and validation-time namespace substitution preserving unowned entries. The signal mask spans only create/open/fstat/validation/identity registration and is restored before any writes or fsync.


All 116 focused tests now pass, preserving the prior 105, and the exact 49 canonical regressions pass. Static gates are clean after replacing the mutable helper model with a typed slotted class; every module remains below 250 pure LOC.


I read this as completing Todo 3 r10 only - the exact termination gaps are fixed and fully verified.

**DoneClaim**

- SIGTERM after real stage/temp creation is deferred through validated identity registration, then delivered through cleanup.
- Both exact seams passed twice with interruption, zero residue, and no success result.
- SIGINT is also deferred; SIGKILL is explicitly unrecoverable.
- Unowned substitutions are preserved.
- Cleanup cancellation resumes safely and re-raises interruption.
- **116 focused tests passed**: prior 105 plus 11 r10 tests.
- **49 canonical regressions passed**.
- LSP, ruff, ty, basedpyright, compileall, no-excuse, LOC, manual, privacy, topology, race, capability, and repair gates passed.
- All modules remain under 250 pure LOC.
- Zero stage/temp or cache residue.

Evidence:
- `.omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar-r10.json`
- `.omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar-r10-cleanup.json`
- Cleanup SHA-256: `069c366334d648bf7030cf0aa2c8688398f104af5eb3208af2bc20ad04c6e8cd`


I read this as a Todo 3 r11 architecture replacement - preserve the r10 stage-race evidence, remove all directory staging/publication machinery, make the pre-existing empty pinned directory the authority root, publish only an unnamed marker inode, flatten customer files into that root, adapt the full semantic suite, and verify every required gate before DoneClaim.


The amended decision confirms the root is the supplied directory itself. The current code still binds a child directory, creates `customers-v1`, and publishes a named stage, so this requires replacement rather than incremental hardening. I am now removing those topology concepts from production before adapting tests.


The flat-root implementation is now behaviorally green: 120 adapted focused tests pass, including all history, privacy, capability, race, and atomic-repair semantics, and the 49 canonical regressions remain unchanged. The old stage and `customers-v1` concepts are absent from product code, and concurrent initialization is forced to race at descriptor link with exactly one typed winner.


I read this as completing Todo 3 r11 - the stage-directory architecture is eliminated and the amended decision is fully verified.

**DoneClaim**

- Caller-supplied pre-existing 0700 directory is the authority root.
- Initialization creates no named pre-publication object.
- Marker publication uses `O_TMPFILE` plus typed `linkat(..., AT_EMPTY_PATH)`.
- Concurrent initialization has exactly one winner and one typed `already_initialized` loser.
- Customer data and lock files are flat root children with strict global validation.
- `customers-v1`, stage mkdir/name/cleanup, `rmdir`, directory exchange, and rename module are structurally absent.
- Marker substitution and ambiguous publication return only truthful exact success or typed incidents.
- R10 atomic repair and lock-byte binding remain intact.
- **122 focused tests passed**, adapting and extending the prior 116.
- **49 canonical regressions passed**.
- LSP, ruff, ty, basedpyright, compileall, no-excuse, LOC, manual privacy/topology/history/capability/repair/race gates passed.
- Zero stage/temp/cache residue.

Evidence:
- `.omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar-r11.json`
- `.omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar-r11-cleanup.json`
- Cleanup SHA-256: `a427bbdc7bb5b2d2ad5e0905cd3cb6e6fafcb42327292838b74e1790a471ddad`


The blocker is real in the current flow: marker publication catches post-link cancellation and returns ordinary success, while binding construction happens later outside any transaction boundary. I am recording RED at the real post-link seam before moving publication, fsync, reconciliation, and binding construction into one bounded deferred-signal transaction.


RED is captured for both signals. The transaction is now split into unmasked unnamed-inode preparation and a bounded masked commit; I am extending coverage across every requested seam and verifying that pending cancellation cannot override fsync, reconciliation, or binding-construction failures.


The transaction now distinguishes three outcomes: pre-link cancellation leaves no marker; any link/fsync/reconcile/binding failure remains a non-committed typed incident even with a pending signal; and only a durably fsynced, exactly reconciled marker with a complete binding raises the typed committed outcome carrying that binding and cancellation kind.


Every requested seam now passes twice for both SIGTERM and SIGINT. Post-commit cases observe the authority-directory fsync, raise the committed outcome rather than returning success, serialize their evidence, open freshly with the carried binding, and reject binding-less retry. Pending cancellation also no longer overrides injected fsync, reconciliation, or binding failures.


I read this as completing Todo 3 r12 - post-link catchable cancellation now preserves durability and exposes the exact binding.

**DoneClaim**

- Link through binding construction is one bounded SIGTERM/SIGINT-deferred transaction.
- Pre-link cancellation remains non-committed with no marker.
- Post-commit cancellation raises `WeeklyOperationsInitializationCommitted`.
- Outcome carries:
  - Exact `WeeklyOperationsAuthorityBinding`
  - Original cancellation kind
  - JSON-serializable evidence
- Fresh open with the carried binding succeeds immediately.
- Binding-less retry remains `already_initialized`.
- Pending cancellation cannot override fsync, reconciliation, or binding-construction failures.
- SIGKILL/power loss before directory fsync remains explicitly unresolved.
- **130 focused tests passed**, including all prior 122.
- **49 canonical regressions passed**.
- LSP, ruff, ty, basedpyright, compileall, no-excuse, LOC, manual privacy/history/capability/repair/race gates passed.
- Zero stage, temp, or cache residue.

Evidence:
- `.omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar-r12.json`
- `.omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar-r12-cleanup.json`
- Cleanup SHA-256: `2207bdcadbbd38438b6a8a176740f77aecceb020366d33ff9d3ea0df85596c08`


The r12 seam is outside its committed-outcome catch: cancellation during prepared-descriptor cleanup runs after unmask and bypasses the binding-bearing branch. I am recording that exact finally-seam RED, then replacing direct initialization with a caller-acknowledged context transaction whose constructor does not alter signal state.


I read this as completion of Todo 3 r13 - report the implemented handoff transaction and verified evidence.

**DoneClaim**

Todo 3 r13 is complete. Every committed initialization path exposes the exact binding before SIGTERM/SIGINT unblocking.

- Added same-thread, context-managed binding handoff with explicit acknowledgement.
- Removed direct initialization success API.
- Preserved exact prior signal masks, typed committed exits, privacy, global validation, and atomic repair.
- Focused suite: **142 passed**
- Canonical regressions: **49 passed**
- Ruff, ty, basedpyright, compileall, no-excuse, LSP, LOC, manual gates, and cleanup passed.
- Evidence: `.omo/evidence/nutricoach-v140-weekly-operations/task-3-sidecar-r13.json`
- Evidence SHA-256: `cabef548a9879b4dfe6f782de0f6dde6322c5f9296cb2e1a45efc0869ec2a684`