Commit Graph
68 Commits
Author SHA1 Message Date
glm-5.3-flash 3a51bb43fc feat(store): the fleet GC protocol — the sweep lease, SQL arbitration, pin reaping, and the fleet liveness verb (wave 6)
Grow the sweep and delete paths into their fleet forms under fleet: true
(ADR-008 §2, ADR-010 §2, ADR-012 §1/§5/§6.6/§6.7, ADR-013 §2); the
non-fleet forms are byte-unchanged.

- the sweep lease: sweep() composes the in-process single-flight flag
  with the SQL lease (sweep_lock_acquire on the fleet host), both held
  for the whole sweep and released on every exit path; contention at
  either domain aborts as SweeperLock report data, nothing deleted;
  the pool-sizing composition enforced (max_size >= 2 at the fleet
  constructors' entry — the lease holds one checkout; the body's
  clauses ride further checkouts)
- SQL-level delete arbitration: arbitrated_delete composes the two
  domains (in-process first — cheap, local; the engine's arbitrate
  second — fleet-authoritative) on the direct path (GcRefuse) and the
  window execution's re-arbitration; a foreign instance's un-expired
  pin row or liveness-table row refuses cross-instance
- the maintenance step: EngineFleetState::pin_reap (the seam as the
  named clause home) reaps exactly the expired pin rows, one statement
  on the postgres host, contract-tested, driven under the lease before
  the overdue execution
- the fleet liveness verb: register_liveness_source takes the
  fleet-shaped LivenessRegistration argument (ADR-012 §6.6's same-verb
  wording) — the named-table form registers the embedder's own table
  (schema-ownership rule holds; idempotent; deregistration composes
  via a new engine-side unregister), the in-process form stays legal
  (instance-local protection, documented); Registration carries its
  kind; the verb is fallible (the fleet form's error surface)
- the protect callback's fleet posture recorded: single-node-only,
  instance-local consult remains, materialization is the embedder's
  duty — no new machinery
- the fleet sweep body: protect consult → reap → execute overdue
  (two-domain re-arbitration, fall-through delete across both tiers)
  → mark (pool + in-process sources; SQL liveness consulted at
  arbitration time, never enumerated) → stage → release; counts exact
  relative to the schedule
- tests: lease contention/reaping between two instances, the
  foreign-row GcRefuse, the exact-set reap, the embedder-table
  protection + correction flow + malformed and fleet:false
  rejections, the two-instance exact-count shape, and the delay race
  in its fleet form; the wave-6 inert-machinery construction test
  rewritten to the now-live fleet semantics

Verification: cargo test (default) green; cargo test --features
postgres green server-less (skipping) and against pglo-poc :15432;
cargo test --all-features green; cargo clippy --all-targets -D
warnings green (default, postgres, all-features); cargo fmt --check
green; cargo doc --no-deps clean (postgres-feature warnings
unchanged at the pre-existing 21).
2026-10-12 16:54:21 +00:00
glm-5.3-flash 950af9ab0d feat(store): the fleet put path — the joint entry+pin tx driver and the pin guard's fleet form (wave 6)
- Under fleet: true, puts route through the joint entry+pin tx
  (store-fleet-put): kv tier via begin_joint_tx -> joint_put (CAS; a
  dedup re-put commits the pin row alone, upsert-renewing
  (key, owner)) -> pin_commit — entry + pin row in one step, verified
  against an independent connection; large = pg-lo rides the one-tx
  consolidation form (known- and unknown-length; the 512 KiB knee,
  the empty-contribution re-put form, read-your-own-writes
  derivation); large = local on declared shared media is
  pin-first, publish-second (the row-only joint tx, then the staged
  commit-rename; the orphan-pin crash window is the expiry
  machinery's).
- Amendment A1 landed: catch-propagate-terminate — every error path
  between begin_joint_tx and pin_commit terminates the held tx before
  propagating (no mid-flight PgJointTx returns dirty to the pool,
  PG-2); tested with a forced mid-driver failure (zero residue, the
  pool's idle-in-transaction count zero, a follow-up put clean).
- The pin guard's fleet form: the returned guard carries the row's
  TTL/3 renewal duty — a per-guard tokio task (spawned at the row's
  durability), silent on Err, ended by the never-resurrect
  Ok(false), aborted at every guard-life boundary (drop, batch
  contribution, conversion); PinRenewal gated feature postgres.
- KvEngine::Postgres holds Arc<PostgresBackend> so detached renewal
  tasks share the fleet host's engine; tokio gains the time feature
  for the cadence.
- Non-fleet put paths byte-unchanged (all existing suites green); a
  non-fleet test pins that no pin rows are ever committed.
- Tests: new postgres_fleet_put_tests (fresh schema + SchemaJanitor;
  kv joint atomicity both-or-neither, forced pin_commit failure,
  renewal cadence/drop/conversion stop, never-resurrect, batch
  release ends renewals, dedup upsert-renewal + by-row composition,
  local pin-first success + forced-failure forms, non-fleet
  non-event) and postgres_pglo_fleet_put_tests (fresh db +
  DatabaseJanitor; the A1 pg-lo failure form, the consolidation
  round-trip through the public put). Env-driven, skipping cleanly
  server-less.

Verified: cargo test (default) green; --features postgres and --features
"postgres,pg-lo" green server-less (skipping) and against the harness
server (pglo-poc, :15432); --all-features green live; pg-pure and
mem,pg-lo pure builds green; clippy -D warnings green (all combos);
cargo fmt --check green; cargo doc --no-deps clean (default; the gated
builds' pre-existing warnings unchanged). Schema/db residue 0.
2026-10-12 16:08:29 +00:00
glm-5.3-flash 76be7b0273 feat(pg-lo): the joint contribution — staged-put mechanics into the store-held tx (wave 6)
The wave-5 deferred design point, landed: under the consolidation
posture (kv = postgres + large = pg-lo, same pg instance), a large
entry's content reaches the store-held joint transaction the pin row
commits in (ADR-012 §4's one-tx ruling).

- The contribution's API home (the named design point) — decided: the
  joint staging-cursor variant. `PgLoBackend::put_joint_staged(&mut
  PgJointTx)` hands `PgLoJointStaging<'_>`, the staged put with
  inverted ownership: it borrows the held checkout, owns no checkout,
  opens no tx, never COMMITs, never ROLLBACKs (the driver owns
  termination, amendment A1) — no Drop, by design. The deciding facts:
  the large tier's put contract is the streaming cursor, the fleet put
  driver routes to the joint form as the non-fleet path routes to the
  staged form, and the unknown-length derivation pass reads back
  through the cursor's `ReadCursor` seam — none servable by a
  whole-value method.
- The mechanics are the landed bodies re-homed: the 512 KiB
  `lowrite` knee (LOWRITE_CHUNK aggregation of the store core's 64 KiB
  windows), read-your-own-writes `lo_get` windows, the publish-time
  CAS (the key resolves at publish — the staged put's named design
  point), the companion-row insert, transactional LO creation (C6:
  the LO lives and dies with the store-held tx). The re-put form
  publishes an empty contribution — the staged LO unlinked inside the
  store-held tx, zero residue; a concurrent CAS miss surfaces the
  companion key's unique violation (the landed puts' posture).
- Enabling affordance: `PgJointTx::client()` — the crate-internal
  statement surface every joint contribution (and the store-fleet-put
  driver's A1 termination design) rides through; deliberately not an
  abort verb.
- Crate-internal seam: the public trait surface untouched, nothing of
  `EngineFleetState` on pg-lo (ADR-010 §2's correction), the
  engine-level held-tx staging cursor and the non-fleet put path
  byte-unchanged. Gated `feature = "postgres"`; both pg-lo pure
  builds compile.
- Contract tests (`src/pg_lo.rs` mod joint, both engines on one
  dedicated database): one-tx publish (kv row + LO + companion row +
  pin row, byte-exact round-trips after `pin_commit`); forced failure
  mid-contribution → driver ROLLBACK → zero residue (no LO pages, no
  companion row, no pin row, no kv row); the CAS re-put form (empty
  contribution, upsert renewal); the 512 KiB knee (multi-chunk).

Verification: `cargo test` (default) green; `--features
"pg-lo,postgres"` green server-less (skipping) and against the harness
server (pglo-poc, :15432 — the four joint tests + full pg_lo +
conformance suites live); `--all-features` green; clippy `-D warnings`
green (default / postgres / pg-lo+postgres / all-features / the two
pg-lo pure builds); `cargo fmt --check` green; `cargo doc --no-deps`
clean.

The store-core driver that calls the contribution on the fleet put
path is store-fleet-put.
2026-10-12 15:15:27 +00:00
glm-5.3-flash b6b353242b feat(store): the fleet declaration — the composite fleet-validity predicate at the constructor (wave 6)
- Three `_fleet` twin constructors slot the explicit `fleet: true`
  declaration in without reshaping the fleet-capable constructors;
  every pre-existing constructor stays implicitly `fleet: false` with
  byte-unchanged behavior (the recorded non-event landed as recorded):
  `kv_only_postgres_fleet` (the re-routing client posture, large =
  none), `dual_tier_postgres_local_fleet` (the shared-media posture),
  `dual_tier_postgres_pglo_fleet` (the consolidation posture).
- The composite fleet-validity predicate (`fleet_validity_error`) is
  one function, one sentence, both tiers, run at the constructor keyed
  off the engine representation: kv = postgres AND (pg-lo on the same
  pg instance OR local on declared shared media OR none). The
  structural clauses (mem never, sqlite never, local needs the
  declaration) are enforced by the constructor set's shape and tested
  per clause at the predicate level; the pg-lo same-instance clause is
  the runtime arm: `pg_control_system().system_identifier` compared
  across one pooled connection per engine — mismatch or failed probe
  is a constructor error, never a silent pass.
- The named design points decided and recorded: the shared-media
  assertion is a sealed dedicated type (`FleetSharedMedia::asserted()`,
  never a bare flag); the pin TTL is a fleet constructor parameter
  (default `DEFAULT_PIN_TTL` 60 s, `Duration::ZERO` rejected at entry)
  wired through `PostgresBackend::new_with_pin_ttl` to the renewal
  body (proven against the live server); the owner id mints 32 raw
  bytes at construction (SHA-256 fold over pid/nanos/instance
  counter/ASLR anchor), stable per instance, crate-internal.
- The store carries its fleet state (`FleetState`: the declaration
  flag, the TTL, the owner id) — crate-internal (fleet parameters,
  not API); the one-window-host posture verified intact under fleet
  (kv host's both-tables GC schema, pg-lo window clauses dormant, the
  form branch keyed off the engine representation), and the
  declaration turns nothing else on yet (put/sweep run the non-fleet
  machinery until the driver tasks).
- Constructor docs updated to the landed state (module doc's
  fleet-declaration paragraph, the three non-fleet recordings, the
  scope notes, gc.rs/postgres.rs/pg_lo.rs wave-6 notes); `cargo doc
  --no-deps` clean in the default build.

Verification: cargo test (default) green; --features postgres and
--features "postgres,pg-lo" green server-less (skipping cleanly) and
against the harness server (pglo-poc, :15432 — verified live 2026-
10-12); --all-features green; clippy -D warnings green (default +
postgres + postgres,pg-lo + all-features); cargo fmt --check green;
cargo doc --no-deps clean.
2026-10-12 14:53:55 +00:00
glm-5.3-flash 009de420e1 docs(tasks): decompose wave 6 — the fleet GC mechanism, the architecture's most intricate state machine under concurrency
- store-fleet-construction: the fleet: true declaration slotting into
  the fleet-capable constructors (the recorded non-event), the
  composite fleet-validity predicate enforced at the constructor
  (kv=postgres AND pg-lo-same-instance OR local-on-declared-shared-
  media OR kv-only re-routing), the TTL/owner-id fleet state, the
  same-instance probe design point
- engine-pg-lo-joint: the pg-lo joint contribution — staged-put
  mechanics (512 KiB knee, CAS, transactional LO creation) into the
  store-held PgJointTx, the wave-5 deferred API-shape design point
- store-fleet-put: the joint entry+pin tx driver (amendment A1's
  drop discipline lands here — its recorded owner), the pin guard's
  TTL/3 renewal form, the dedup upsert-renewal, pin-first/
  publish-second for large=local, the consolidation one-tx put
- store-fleet-sweep: the SQL sweep lease (ADR-013 §2 semantics),
  SQL-level delete arbitration on the direct + window-execution
  paths, the expired-pin reaping clause (the seam as the named home
  for fleet-clause growth), the fleet liveness registration verb,
  the two-domain arbitration composition
- suite-column-fleet: the fleet column — two-instance factories over
  one schema, the exact-count fleet sweep rows (the wave's gate),
  lease contention, cross-instance arbitration, TTL/renewal rows,
  the fleet-validity predicate rows
- review-wave-6: the fleet gate per the plan, plus a standing
  code-smell/hygiene block — cargo doc --no-deps asserted clean
  (the twice-bitten PGLO-1 rustdoc private-link class), the
  allow(dead_code) scope notes audited against their remainder,
  stale wave-6 forward references, and task-Summary-vs-diff
  correctness

Harness server cited in every server-touching task: dockerized
pglo-poc (postgres:16-alpine) on :15432, db blobs, postgres/poc
(verified live 2026-10-12); env-driven ALKBLOBS_PG_* settings, clean
server-less skips, acceptance requires green against the server.

Dependency graph validated: two parallel roots (construction, pg-lo
joint), put merging them, sweep parallel to put, the fleet column
merging, the review gate last; no cycles.
2026-10-12 14:22:55 +00:00
glm-5.3-flash 93f9a9332c docs(review): the wave-5 review gate — every gate check green
The engine-wave gate read the pg-lo engine, its window-family seam,
the constructor wiring, and the suite column against the pinned ADR
text and found them conformant. One finding fixed inline (PGLO-1, the
wave-5 rustdoc private-link warnings — see the previous commit); no
wave-6 amendments arise from this gate. All gates re-run green after
the fix. Wave 6 (fleet GC) decomposition is unblocked.
2026-10-12 13:56:00 +00:00
glm-5.3-flash cad799b28e fix(store): rustdoc hygiene — the wave-5 module doc's private-item links de-linked
The wave-5 landing introduced four rustdoc warnings (cargo doc was no
longer clean): the public store module doc's new intra-doc links
resolved to crate-internal items — AnyCursor, KvCursor, LargeCursor,
and the store-core ensure_gc_schema_at_construction. The names are
prose now (no links): private items never resolve from public docs.

Verified: cargo doc --no-deps zero warnings; cargo clippy --all-targets
-- -D warnings green; cargo fmt --check green. Found by the wave-5
review gate (tasks/review-wave-5.md PGLO-1).
2026-10-12 13:55:57 +00:00
glm-5.3-flash aa96f8b981 feat(tests): the conformance suite's pg-lo column — the LO-medium SKIP-posture column green (wave 5)
- tests/conformance/pg_lo_column.rs (new): the two pair-gated factories
  (DualTierMemPgLoFactory on all(mem, pg-lo) — the one-window-host rule's
  named test topology; DualTierPostgresPgLoFactory on
  all(postgres, pg-lo) — the consolidation posture, two schemas per open,
  carrying the dormancy row), a fresh dedicated database per open with
  the engine-owned schemas minted inside, teardown reaping tracked LOIDs
  (lo_unlink) then dropping the minted schemas then the database
  (WITH (FORCE)) with per-open drop-guard janitors for the abandoned
  paths, and the rows: the verbatim form-independent mirror (INV-1, INV-6,
  the two no-op abort shapes), the schedule-relative INV-2/3, the
  two-sweep exact counts over the full protection set across each
  factory's observed window host, the window-delay race, the
  holder-stages-only lease, INV-5's durable row, the three dispatch rows
  over the LO-medium placement oracle, the INV-1 extension (window-edge
  ranged reads + the planted-overclaim beyond-length clean failure), the
  virgin-store rows, and the dormancy row; structural isolation +
  panicking-row tests probing zero orphan residue (no kv-only rejection
  row — recorded; pg-lo is a large engine)
- the LO-isolation corollary carried in the engine task's recorded
  per-test-database shape (the C7 lesson): zero LO residue on the shared
  harness database is structural, so the engine suite's
  shared_harness_db_holds_zero_lo_residue gate stays green alongside the
  column under --all-features
- main.rs: the pg_lo_column gate (feature pg-lo, default-off) + the
  columns' doc paragraph
- README: the pg-lo rows table in §Columns beyond the reference set, the
  SKIP-posture note naming the second landed column and the per-factory
  feature-pair gating, current state = five columns
- store.rs: one mechanical gate fix — the PgOpts import was unused in the
  sqlite+pg-lo config (tripping clippy --features pg-lo -D warnings);
  the gate now names the configs that consume it

Verification (harness server live 2026-10-12): --all-features against the
server fully green (188 lib + 106 conformance + 4 git-interop; zero
LO/schema/database residue after the run); default test green (69/19/3);
--features "pg-lo,mem" and "postgres,pg-lo" green server-less
(skipping cleanly) and --features pg-lo alone; clippy -D warnings green
on default, pg-lo, pg-lo+mem, postgres+pg-lo, all-features; fmt --check
green; cargo doc --no-deps clean.
2026-10-12 08:47:55 +00:00
glm-5.3-flash cddcea3cfa feat(store): the pg-lo constructor wiring — the consolidation shape and the window-host completion (wave 5)
- LargeEngine::PgLo slots in behind `pg-lo` + all six large-op
  dispatch arms; the large cursor/staging bodies land as the
  LargeCursor/LargeStaging sub-enums behind AnyCursor/AnyStaging's
  one large arm (the recorded KvCursor pattern's large-tier twin)
- dual_tier_postgres_pglo (the consolidation posture; two DSN+opts
  pairs, implicitly non-fleet, completing the fleet-valid engine
  set) and dual_tier_mem_pglo (the one-window-host rule's named test
  topology), both carrying the constructor-tunable delete-window
  delay
- ensure_gc_schema_at_construction: the one-window-host rule's
  store-core dispatch (kv host on dual-SQL — pg-lo's window clauses
  dormant; pg-lo host on kv=mem); the sweep's mem arm gains the
  large-host delegation, the branch keyed off the engine
  representation never a flag
- stale scope notes updated to the landed state (store.rs module
  doc, LargeEngine, the sweep docs, PUT_CHUNK, pg_lo.rs, gc.rs)
- 7 new env-driven constructor tests (dedicated-database janitor
  discipline; consolidation + mem-pglo both shapes

Verified live against the pglo-poc harness server: cargo test
default 69/19/3, --features pg-lo 92/19/3, --features "pg-lo,mem"
151/54/4 (server-less 124/37/4), --no-default-features
"postgres,pg-lo" 102/19/3 (both live and server-less),
--all-features 188/71/4; clippy -D warnings and fmt --check green
on all four configurations; cargo doc clean. The literal kv-less
pg-lo config re-confirmed structurally uncompilable (d69d9a3's
finding; not a gate).
2026-10-12 08:04:19 +00:00
glm-5.3-flash c8fc519978 feat(gc): the pg-lo engine-state window family — the conditional window host (wave 5)
- impl EngineWindowState on PgLoBackend: ensure_gc_schema creates
  gc_window only (never gc_pins, never the embedder's liveness
  table), window_stage upserts idempotent per (key, deadline),
  window_take is the one atomic DELETE ... RETURNING step over the
  <= boundary with the 42P01 -> empty virgin-take split
- nothing of EngineFleetState exists on this engine (ADR-012 §5's
  pg-lo row: fleet pins live on the kv host, sweep lock no); the
  one-window-host dormancy posture is recorded in the impl doc
- five contract tests mirror the postgres/sqlite suites (schema-only
  + row shape, stage idempotence/restage, take-exact-set/never-twice,
  the <= boundary with nanosecond slack, both virgin shapes);
  env-driven, skipping cleanly server-less, green live against the
  harness server

Verification: cargo test (default + --features pg-lo, server-less
and live), clippy -D warnings (default, pg-lo, + the pure builds
"pg-lo,mem" and "postgres,pg-lo"), cargo fmt --check, cargo doc --no-deps
2026-10-12 07:40:59 +00:00
glm-5.3-flash fb24f30e0a docs(tasks): correct the wave-5 pure-build gates — the literal kv-less pg-lo config is not a gate
The wave-5 engine task (d69d9a3) found the literal
--no-default-features --features pg-lo config cannot compile the whole
crate: with no kv feature enabled, KvEngine/KvCursor go empty (E0004)
and the facade's by-reference dispatch matches are non-exhaustive
(references are always considered inhabited). Structural, not a bug —
per ADR-011 §4 every constructor mode pairs a kv engine, so a build
with zero kv engines is not a supported configuration (ADR-013 §4's
supported non-default configurations all include one).

The meaningful pure builds, verified on this tree:
- --no-default-features --features "pg-lo,mem" — check/test/clippy
  green (115 tests ok server-less)
- --no-default-features --features "postgres,pg-lo" — check/clippy
  green, test target compiles

Amended: engine-pg-lo (description + acceptance + gates),
engine-pg-lo-window (acceptance), store-pg-lo-construction (the full
structural reading + acceptance), review-wave-5 (gates). The engine
task's Notes/Summary already recorded the finding; the criteria text
now matches what was verified.

Verification: cargo test 69/19/3 ok, fmt --check green (docs-only
change).
2026-10-12 07:36:32 +00:00
glm-5.3-flash d69d9a345b feat(pg-lo): the large-tier engine — LOs + companion table behind the Backend trait (wave 5)
Implement the pg-lo engine (ADR-009, POC #7 C1-C7) in src/pg_lo.rs
behind feature pg-lo (default-off), plus the shared-helper home the
task's design points resolve into src/pg_common.rs.

- Engine: seven Backend methods + put_staged; the lo_entries companion
  table is the contract authority (list/size/has/CAS table-level;
  pg_largeobject read only by the orphan sweep's candidate enumeration);
  one-tx puts with 512 KiB lowrite statements (LOWRITE_CHUNK, the C2
  knee), the descriptorless lo_get window cursor (READ_CHUNK; EOF
  clamping + the unexpected-EOF clean failure), the held-tx staging
  cursor aggregating 64 KiB windows, one-tx deletes, the complete
  single-snapshot list, the 42P01 read-only virgin-store split, and the
  crate-internal reap_orphans (scope-noted, planted-orphan contract
  test). Posture deltas in the module doc (catalog space never
  returned / VACUUM FULL runbook line / autovacuum inherited / the
  cached-get capacity facts). Nothing of EngineFleetState; the window
  family remains engine-pg-lo-window.
- Shared helpers (pg_err, 42P01, quote_identifier, size clamp, i64-nanos
  encoding, build_pool, PgOpts, test janitors) move to src/pg_common.rs
  gated cfg(any(postgres, pg-lo)); PgOpts's public re-export widens
  (definition moved; crate::postgres::PgOpts path held by re-export);
  src/postgres.rs's changes are mechanical swaps.
- LO isolation (C7 lesson): per-test dedicated databases + DatabaseJanitor
  (WITH (FORCE)); zero LO/schema/database residue on the shared harness
  db (pre-existing public.lo_entries exploration residue found and
  removed).
- 18 in-module tests, env-driven (ALKBLOBS_PG_*), skipping cleanly
  server-less; all green against the pglo-poc harness server.

Verified: cargo test (69/19/3), --features pg-lo live (87/19/3, 18/18
pg-lo), --features postgres live (103/36/3), --all-features (176/71/4);
clippy -D warnings green for default, pg-lo, postgres, all-features,
--no-default-features --features "pg-lo,mem" and "postgres,pg-lo";
cargo fmt --check; cargo doc --no-deps.
2026-10-12 07:31:46 +00:00
glm-5.3-flash 5a217f7bc7 docs(tasks): decompose wave 5 — the pg-lo large engine, the window host's large-tier arm, the LO-medium SKIP-posture column
- engine-pg-lo: the Backend impl behind feature pg-lo (default-off) —
  companion-table authority, one-tx staged put at the 512 KiB knee,
  descriptorless lo_get windows, the orphan-recovery sweep, the
  posture deltas recorded; the shared-helper/PgOpts/LO-isolation
  design points named (LOs are database-level — the C7 lesson cited
  so it is not rediscovered)
- engine-pg-lo-window: the EngineWindowState impl per ADR-012 §5's
  pg-lo row — gc_window only, no fleet family anywhere
- store-pg-lo-construction: LargeEngine::PgLo slotting (the large
  sub-enum design point), the consolidation + mem-pglo constructors
  (the fleet-valid set completed, implicitly non-fleet), and the
  one-window-host rule's store-core completion (dormancy + the
  large-host sweep arm)
- suite-column-pg-lo: the second SKIP-posture column, two factories
  spanning feature pairs, the dormancy row, zero LO residue in
  teardown
- review-wave-5: the engine-wave gate; amendment A2 (janitor
  adoption) verified here

Harness server cited in every server-touching task: dockerized
pglo-poc (postgres:16-alpine) on :15432, db blobs, postgres/poc
(verified live 2026-10-12); env-driven ALKBLOBS_PG_* settings, clean
server-less skips, acceptance requires green against the server.

Verification: cargo test 69/19/3 ok, clippy --all-targets -D warnings
green, fmt --check green (docs-only change).
2026-10-12 07:13:51 +00:00
glm-5.3-flash f3e8a88e2e docs(review): the wave-4 review gate — every gate check green 2026-10-12 07:06:19 +00:00
glm-5.3-flash f195759989 fix(postgres): the wave-4 review gate's inline findings
- PG-1: sweep_lock_acquire reaps a lease whose held session died
  (in-instance session-loss reaping, ADR-013 §2) — previously the
  mutex answered Ok(false) until an explicit release; new test
  terminates the lease's own backend via pg_terminate_backend and
  re-acquires without a release
- PG-3: the engine-level pg tests now drop their per-test schemas
  (test_support::SchemaJanitor, the Harness deref-guard wrapper in
  src/postgres.rs's tests, fresh_opts carrying a janitor in the
  construction tests) — 380 leaked abt_* schemas on the shared
  harness db are 0 after every run now
- PG-2: PgJointTx's doc records the mid-flight-drop hazard (deadpool
  Fast recycle never resets transaction state; the clause bodies'
  failure paths all ROLLBACK — the store core's joint-tx driver owes
  pin_commit on every path from begin_joint_tx; wave 6 amendment)

Verification: cargo test (69/19/3), --features mem (124/54/4),
--features postgres vs server (103/36/3, 51 clean skips server-less),
--all-features vs server (158/71/4), pg-pure (76/19/3);
clippy -D warnings green (default/postgres/all-features/pg-pure);
fmt --check green; shared-db schema residue 0; cargo doc clean
2026-10-12 07:06:16 +00:00
glm-5.3-flash 0fb05fce3a feat(tests): the conformance suite's postgres column — the first SKIP-posture column green (wave 4)
- The column (tests/conformance/postgres_column.rs, feature `postgres`,
  default-off): the factories are the alkstore pg-factory pattern reused —
  `dual-tier postgres+local` (kv = postgres + large = local at the
  column-declared threshold 1024, window delay `Duration::ZERO`) and
  `kv-only(postgres)` at 1024 (the rejection row's host); a fresh
  engine-owned schema per `open()` (unique per call, seeded per
  tag/pid/time — racing opens included), registry-tracked per instance,
  teardown `DROP SCHEMA IF EXISTS … CASCADE` over exactly the minted
  schemas + the vended temp roots (idempotent, owned, panicking-row-safe)
- The SKIP posture: connection settings ride the environment
  (ALKBLOBS_PG_HOST/PORT/USER/PASSWORD/DB), every runner gates behind a
  reachability probe, server-less runs skip cleanly (a skip is not a
  failure); the acceptance run is green against the harness server
  (dockerized `pglo-poc`, :15432 — the alkstore harness's same server)
- Rows: the form-independent reference rows mirror verbatim (INV-1,
  INV-6, the NoLivenessSources/ProtectFailed abort shapes, the kv-only
  rejection row); the sqlite column's durable-schedule sweep family
  mirrors (schedule-relative INV-2/INV-3 readings, the two-sweep exact
  counts over the full protection set, the race across the window
  delay, the holder-stages-only lease shape, INV-5 list correctness);
  the dispatch rows adapt the placement oracle by medium (independent-
  connection counts of the schema's rows vs the root's committed files)
  plus the virgin-store row; every row ADR-stamped, traced to the
  backlog
- Structural factory tests: fresh isolated opens (two opens mint
  distinct schemas and share nothing) and teardown against a panicking
  row (schemas really dropped, pg_namespace-verified)
- README amended: the postgres rows table in §Columns beyond the
  reference set; the column plan's SKIP-posture note names the landed
  column; current state (four columns, waves 2–4)

Verification: cargo test (default) 69/19/3 ok — the column compiles
out; cargo test --features postgres 102/36/3 ok against the harness
server (and green skipping server-less); cargo clippy --all-targets --
-D warnings green (default, postgres, all-features); cargo fmt --check
green; pg_namespace verified schema-clean after live runs.
2026-10-12 06:43:00 +00:00
glm-5.3-flash 67b927b13c feat(store): the postgres constructor wiring — the fleet-capable store shapes (wave 4)
- `KvEngine::Postgres` slotted in: all six kv-op dispatch arms, the
  `KvCursor::Postgres` materializing body behind `AnyCursor`'s kv arm
  (the recorded sub-enum design point, landed as predicted), and the
  engine-neutral `ensure_gc_schema` call creating `gc_pins` +
  `gc_window` in the fresh schema at construction (the fleet host's
  both-tables row, ADR-012 §5)
- The two named constructors behind feature `postgres` (default-off):
  `dual_tier_postgres_local(config, opts, root, threshold,
  window_delay)` — the fleet-capable-kv production shape — and
  `kv_only_postgres(config, opts, threshold, window_delay)`; the DSN
  connection settings + engine opts ride the constructor parameters,
  never invented defaults. `PgOpts` is pub and re-exported from
  `lib.rs` (it is on the public constructor signature now)
- The sweep's durable form runs on the postgres host: the form body
  extracted into `sweep_window_durable<W: EngineWindowState>` (sqlite's
  arm delegates, behavior unchanged), both SQL-backed arms keyed off
  the kv-engine enum, never a flag — wave 5's pg-lo dormancy slots in
  without reshaping
- Non-fleet posture recorded on both constructors (ADR-012 §3):
  implicitly `fleet: false`, the ADR-005 in-process protocol verbatim,
  the `fleet: true` declaration is wave 6 and slots in without
  reshaping
- Stale scope notes updated to the landed state (engine-representation
  doc, `KvCursor` design point, fleet-declaration paragraph,
  one-window-host paragraph, postgres module doc, gc.rs companion-seam
  note); the batch-delete helper's scope note stays (wave 6 consumer)
- 5 new env-driven construction tests (skipping server-less): the
  modes construct and introspect, both GC tables exist in the fresh
  schema, the window-delay default is the pinned 5-min constant and
  tunable (`0` legal), the kv-only rejection wiring is unchanged, the
  dual-tier shape round-trips through both tiers, and the durable
  form is observed staging/executing across sweeps on the postgres
  host

Verification: `cargo test` 69/19/3 ok; `cargo test --features postgres`
102/19/3 ok live (pglo-poc harness) and green server-less;
`cargo test --no-default-features --features postgres` (the pg-pure
build, ADR-013 §4) 75/2/3 ok server-less; `cargo test --all-features`
157/54/4 ok; clippy `-D warnings` green (default, postgres, pg-pure,
all-features); `cargo fmt --check` green; `cargo doc --no-deps` clean.
2026-10-12 06:34:36 +00:00
glm-5.3-flash 29209fe53f feat(gc): the postgres engine-state clause families — the fleet host's full seam (wave 4)
- EngineWindowState: the both-tables ensure_gc_schema (gc_pins with the
  (key, owner) identity + gc_window), idempotent window_stage (the
  upsert discipline per (key, deadline)), and window_take as one atomic
  DELETE ... RETURNING with the <= boundary
- EngineFleetState: PgJointTx (the pooled checkout carrying a
  session-level BEGIN), joint_put (the CAS clause inside the held tx),
  pin_commit (pin-row upsert-renewals + commit, rollback-on-failure =>
  zero residue), pin_renew (expiry = now + DEFAULT_PIN_TTL, never
  resurrects), pin_check (the two-variant classification), arbitrate
  (the FOR UPDATE finger-lock folding pins + registered liveness-table
  references), and the engine-side register_liveness_source home
- The sweep lease: the session-scoped pg advisory lock with the
  namespaced FNV lock key and the same-connection acquire/release
  holding discipline (the lease's checkout stored until release)
- 13 contract tests (28 postgres tests total), env-driven, skipping
  cleanly server-less; verified green against the live pglo-poc
  harness server; clippy/fmt green default + --features postgres

Verification: cargo test (69/19/3 ok), cargo test --features postgres
server-less (97 ok, 28 skips) and live (97 ok), cargo test
--all-features (152/54/4 ok), cargo clippy -D warnings (both configs),
cargo fmt --check, cargo doc --no-deps.
2026-10-12 06:26:23 +00:00
glm-5.3-flash 1efc46f953 feat(engines): the postgres kv engine — the fleet host's first engine (wave 4)
The 'postgres' kv-tier engine (ADR-007, feature 'postgres', default-off)
against the wave-1 trait: the sqlite engine's structural twin on a
Pooled-Postgres driver cluster.

- One engine-owned schema (default 'alkblobs'; quoted-identifier
  boundary via the alkstore quote_identifier pattern) holding the B5
  row shape — key bytea PK / value bytea NOT NULL / size bigint NOT
  NULL, WITH (fillfactor = 90) — idempotently bootstrapped at
  construction; autovacuum and the ~40x small-tier storage overhead
  recorded as posture, not silence
- deadpool pool with DEFAULT_MAX_SIZE = 8 (load-bearing, POC #5 B2);
  per-connection prepare_cached discipline (B5: statements die with
  sessions); the synchronous_commit parity knob as connect options on
  every pooled connection (default 'on', configurable, alkstore
  src/opts.rs mechanics)
- CAS first-writer-wins (INSERT ... ON CONFLICT DO NOTHING) on both
  put forms; metadata-only size probe riding the PK index (EXPLAIN
  gate-tested); EXISTS has; materializing get cursor; degenerate
  in-memory stage with both hygiene forms (fail_commit injection)
- list: the single-statement MVCC-snapshot cursor (portal-batched row
  stream, keys only); crate-internal batch-delete helper
  (DELETE ... WHERE key = ANY() over bytea[]), scope-noted until
  wave 6; virgin-store read-only split via SQLSTATE 42P01 mapping
- 15 in-module unit tests, env-driven (ALKBLOBS_PG_*), skipping
  cleanly server-less; green against the dockerized pglo-poc harness
  server (:15432)

Verified: cargo test; cargo test --features postgres (84 lib tests);
cargo test --all-features (139); clippy all-targets, default +
features + all-features, -D warnings; fmt --check; doc --no-deps.
2026-10-12 06:02:24 +00:00
glm-5.3-flash 7ea6dd6bcb docs(tasks): decompose wave 4 — the postgres kv engine, the fleet host's full seam, the first SKIP-posture column
Five tasks against the wave-3 contract surface as reviewed (no
amendments from the gate):

- engine-postgres: the fleet-capable kv engine — the B5 row shape
  (fillfactor 90) in one engine-owned schema, the deadpool pool with
  per-connection prepared-statement discipline, the synchronous_commit
  parity knob wired per-connection, ON CONFLICT DO NOTHING CAS, the
  stable MVCC-snapshot list cursor, the batch-delete helper
  (key = ANY($1), consumer wave 6), the read-only virgin-store split
- engine-postgres-fleet: the engine-state seam's full clause families
  (ADR-012 §5's postgres row — every family yes): gc_pins + gc_window,
  the joint tx ownership rule in the JointTx shape, pin_commit
  atomicity, pin_renew/pin_check/arbitrate, the pg advisory lock as
  the sweep lease's shipped provider; fleet activation stays wave 6
- store-postgres-construction: KvEngine::Postgres slots in, the
  KvCursor arm, the dual-tier/kv-only constructors (DSN + opts +
  threshold + window delay), the non-fleet posture recorded, the
  pg-pure build verified
- suite-column-postgres: the first SKIP-posture column — the alkstore
  pg-factory pattern reused (fresh schema per open, CASCADE teardown,
  env-driven ALKBLOBS_PG_* settings), durable-schedule sweep rows,
  acceptance green against the harness server (pglo-poc :15432,
  verified live)
- review-wave-4: the engine-wave gate (engine-vs-contract conformance)

Verification: dependency graph validated (all ids resolve, no cycles,
topological order clean); docs-only change.

Refs: docs/plans/implementation.md §Wave 4
2026-10-12 05:49:28 +00:00
glm-5.3-flash 611d30a3c4 fix(store): rustdoc hygiene + u64-safe cursor clamping
- resolve or unlink 25 preexisting rustdoc warnings: broken
  intra-doc links (error variants), public-docs-linking-private-items
  (crate-internal cursor/registry names), and one stale reference to a
  `Store::window_host` that never existed (the form branch is
  `sweep_window`'s engine-enum match)
- `clamped` runs its arithmetic in u64 and narrows to usize after
  clamping, so a wide u64 offset can never wrap onto a small slice
  position on narrow-pointer targets; the cursor contract tests pin
  the overflowing-offset and overflowing-length forms
- zero rustdoc warnings under RUSTDOCFLAGS=-D warnings

Verification: cargo test (69+19+3 green), cargo test --all-features
(124+54+4 green), cargo clippy --all-targets -- -D warnings green,
cargo fmt --check green, RUSTDOCFLAGS=-D warnings cargo doc --no-deps
green.
2026-10-12 05:40:09 +00:00
glm-5.3-flash 97cdf682c4 docs(review): the wave-3 review gate — every gate check green
Reviewed the wave-3 commits (engine-sqlite, engine-sqlite-window,
store-sqlite-construction, store-sweep-durable-window,
suite-column-sqlite) against the cited ADR/spec text line by line:
ADR-003/007/008 §2, ADR-010 §2, ADR-012 §1/§5/§6.7, store-api.md,
implementation.md §Review gates — the engine-vs-contract conformance
(suite column green server-less in the default build; the window
family contract-tested per its applicability row; virgin-store
semantics incl. the no-tables-yet form; the size metadata-only
discipline proven index-riding), the durability posture (WAL +
synchronous=NORMAL verified at open; the single-writer ceiling posture,
not hedge), the durable sweep form vs ADR-008 §2/ADR-012 §6.7 (stage at
mark_end + window; next-sweep execution with raced execution-time
re-arbitration; schedule-relative exact counts; aborts stage and
execute nothing), the seam reduction (gc_window only; no pin rows, no
sweep-lock body, no EngineFleetState), and the blocking discipline
(all rusqlite in spawn_blocking). Named design points audited as
resolved; family conventions clean; no wave-4 amendments arise.

Inline fixes (review-of-record):
- src/gc.rs: the seam's window_stage doc retired the wave-1
  lazy-create hedge for the shipped constructor-at-open posture
  (a tableless database surfaces the engine error on stage;
  per-engine tolerances are each engine's recorded posture)
- tasks/engine-sqlite-window, store-sweep-durable-window,
  suite-column-sqlite: stray placeholder lines above the filled
  Notes/Summary removed (the wave-2 gate's same cleanup)
- tests/conformance/README.md: trailing newline added

Verification (all re-run green after the fixes):
- cargo test (default): 69 lib + 19 conformance + 3 git-interop
- cargo test --features mem / --all-features: 124 lib + 54
  conformance + 4 git-interop each
- cargo clippy --all-targets -- -D warnings (default + all-features)
- cargo fmt --check
- cargo doc --no-deps at the pre-existing warning baseline (26)

Wave 4 (postgres) decomposition is unblocked.
2026-10-12 05:22:29 +00:00
glm-5.3-flash 3f8e8158a7 feat(tests): the conformance suite's sqlite column — the durable-schedule SQL-backed column green (wave 3)
- The first SQL-backed column: the default-build production shape
  (kv = sqlite + large = local, feature sqlite default-on) runs the
  form-independent reference rows verbatim (INV-1, INV-6, the
  NoLivenessSources/ProtectFailed abort shapes, the kv-only rejection
  row against kv-only(sqlite)) and grows the durable-schedule sweep
  rows — exact counts asserted relative to the staged schedule
  (ADR-012 §6.7): two-sweep counts over the full protection set, the
  race across the window delay (a re-put landing during the window
  survives the executing sweep), the holder-stages-only lease shape,
  INV-5 through durable-schedule outcomes, and the schedule-relative
  INV-2/INV-3 readings
- Dispatch rows mirror the local column's family with the placement
  oracle adapted by medium: the sqlite file's pool/window rows vs the
  root's committed files; virgin-store reads as no-ops on a fresh file
  (the no-tables-yet tolerance engine-instrumented, this row its
  facade form)
- Factories: dual-tier sqlite+local and kv-only(sqlite), instance-
  tracked temp sites (fresh sqlite file + private root per open;
  idempotent panicking-row-safe teardown), the column-tuned threshold
  and the test window-delay tuning (Duration::ZERO — execute-on-next-
  sweep); the module is cfg(feature = "sqlite"), default-on — the
  column runs in every default cargo test, server-less, never skips
- Shared fixtures moved to rows.rs (committed_file_count,
  staging_file_count, slice_digest, LatchProtect pub(crate)) so the
  columns share them without the mem gate
- README: the schedule-relative reading for SQL-backed columns
  recorded (citing ADR-012 §6.7), the sqlite rows table inventory,
  Current state (three columns)

Verification: cargo test (default) green — 69 lib + 19 conformance +
3 git-interop; cargo test --features mem green (124 lib + 54
conformance); cargo check --all-features --tests green; cargo clippy
--all-targets -- -D warnings green; cargo fmt --check green.
2026-10-12 05:14:58 +00:00
glm-5.3-flash fb8326c4d5 feat(store): the sweep's durable form — staged candidates, next-sweep execution
The first durable delete window (single-node), beside the inline form:

- sweep_window branches on the delete window's host — the kv-engine
  enum (KvEngine::Sqlite -> durable; KvEngine::Mem -> inline body,
  extracted verbatim so the wave-2 mem/local suites stay green
  unchanged)
- the durable form, per sweep under the lease and after the shared
  protect consult: window_take(now) executes the overdue set with
  execution-time re-arbitration through the same arbitrated_delete
  path (consult_protect = false — the sweep's protect consult covers
  its execution phase; vanished candidates settle into the cancelled
  count), then marks unchanged, then stages the candidate-dead set at
  visible_after = mark_end + window (the constructor-tunable delay;
  ZERO = execute-on-next-sweep)
- report counts exact relative to the schedule (staged-this-sweep vs
  executed-this-sweep); aborts execute nothing, stage nothing, delete
  nothing
- unit tests: two-sweep exact-count shapes at delay 0, future-delay
  staging with idempotent re-stage, the race across the delay (put
  during the window survives; the unpinned twin deletes), the
  vanished-candidate form, and the three abort shapes on sqlite

Verification: cargo test (default 69 lib tests), --all-features (124),
--no-default-features --features mem (101), clippy -D warnings
(default and --all-features), cargo fmt --check — all green.
2026-10-12 05:05:58 +00:00
glm-5.3-flash 2993df0e36 feat(store): the sqlite constructor wiring — the default-build store shapes
- KvEngine::Sqlite slots in; all six kv ops dispatch; the kv cursor
  body dispatches through a new KvCursor sub-enum behind AnyCursor's
  one kv arm (the kv-arm-over-multiple-kv-engines design point,
  recorded)
- dual_tier_sqlite_local (kv = sqlite + large = local, the
  default-build production shape) and kv_only_sqlite constructors —
  both feature-gated on sqlite (default-on), both taking the
  threshold and the delete-window delay, fallible where I/O is
  fallible (Err(Error::Io) per the dual_tier_mem_local pattern)
- ensure_gc_schema runs at construction via the engine-neutral
  KvEngine call (sqlite's body creates gc_window only); the
  window-delay shipped default is the pinned
  DEFAULT_DELETE_WINDOW_DELAY (5 min, ADR-008 §2), constructor-
  tunable, Duration::ZERO legal — the store carries the value for
  the sweep's durable form to consume
- the one-window-host posture recorded in the module doc (the
  durable window hosts on the kv engine when it is SQL-backed; wave
  5's pg-lo dormancy slots in without reshaping)
- stale empty-set scaffolding updated to the landed state: the
  #[allow(unused_variables)] attrs off the KvEngine methods; the
  scope notes in store.rs, backend.rs, sqlite.rs, gc.rs
- constructor unit tests: mode/threshold/window-delay introspection,
  the GC schema observed in the fresh database (window table present,
  gc_pins never), kv-only rejection wiring unchanged, and the
  dual-tier shape round-tripping end-to-end through both tiers

Verification: cargo test 62 passed (default; 5 new tests), cargo test
--all-features 117, cargo test --features mem 117, --no-default-
features --features mem 97; cargo clippy --all-targets -- -D warnings
clean (default + all-features); cargo fmt --check clean; cargo doc
--no-deps at the pre-existing warning baseline.
2026-10-12 04:50:22 +00:00
glm-5.3-flash 51d8f6525f feat(gc): the sqlite engine-state window family — the durable single-node delete window
- impl EngineWindowState for SqliteBackend, the window family only per
  ADR-012 §5's sqlite row; no pin-clause or sweep-lock body exists —
  EngineFleetState is never implemented on this engine
- ensure_gc_schema creates gc_window only (never gc_pins; the embedder's
  liveness table is never created — ADR-008 schema ownership)
- window_stage is a key-keyed upsert: idempotent per (key, deadline),
  a re-stage at a new deadline updates the row
- window_take is one atomic DELETE … RETURNING with the <= now
  boundary; future rows left in place; tableless take is a no-op read,
  tableless stage surfaces the engine error (the recorded read/write
  tolerance split)
- visible_after encodes as signed i64 nanoseconds from the epoch
  (recorded design point; sub-second precision for test tunings)
- six clause contract tests per the ADR-012 §5 sqlite row

Verification: cargo test green (58 lib + 5 integration);
cargo clippy --all-targets -- -D warnings green; cargo fmt --check green.
2026-10-12 04:39:45 +00:00
glm-5.3-flash 908fb5d2dd feat(engines): the sqlite kv engine — the default engine, first SQL-backed (wave 3)
Implements the sqlite kv-tier engine per ADR-003/007/010 §1 behind
feature `sqlite` (default-on): the B5 row shape (key BLOB PK / value
BLOB / size INTEGER NOT NULL), INSERT OR IGNORE CAS first-writer-wins
on both put forms, the EXISTS has probe, the materializing cursor body
with len() from the size column, the degenerate in-memory stage with
both hygiene forms, the indexed-column size probe (plan-tested), the
no-tables-yet virgin-store read tolerance (tested against a tableless
database file), WAL + synchronous=NORMAL verified at open, prepare_cached
discipline, and every rusqlite operation in spawn_blocking under the
recorded single-connection posture.

Task: tasks/engine-sqlite.md (status: completed). The engine-state
window family and store construction remain in their own tasks.

Verification:
- cargo test — 58 pass (11 new sqlite in-module tests)
- cargo clippy --all-targets -- -D warnings — clean
- cargo fmt --check — clean
- cargo check --no-default-features — green
2026-10-12 04:31:24 +00:00
glm-5.3-flash 758ccfb359 docs(tasks): decompose wave 3 — the sqlite kv engine, the durable delete window, the first SQL-backed column
Six tasks against the wave-2 contract surface as reviewed (no
amendments from the gate):

- engine-sqlite: the default kv engine — WAL + synchronous=NORMAL,
  prepared statements, the indexed size column probe (B5's row shape),
  has-as-EXISTS, virgin-store no-tables-yet tolerance, spawn_blocking
  discipline
- engine-sqlite-window: the engine-state seam's window family only
  (ADR-012 §5's reduction — gc_window, stage/take; no pin rows, no
  sweep-lock body)
- store-sqlite-construction: KvEngine::Sqlite slots in, the
  dual-tier/kv-only constructors with the constructor-tunable window
  delay (default 5 min), ensure_gc_schema at construction, the
  one-window-host posture
- store-sweep-durable-window: the sweep's SQL-backed form — overdue
  rows execute with re-arbitration before/alongside marking, candidates
  stage at mark_end + window, counts exact relative to the schedule
  (ADR-012 §6.7); the inline form preserved verbatim
- suite-column-sqlite: the first SQL-backed column, server-less —
  form-independent reference rows mirror directly; the sweep rows are
  schedule-relative (the recorded INV-4/5 mirror amendment)
- review-wave-3: the engine-wave gate (engine-vs-contract conformance)

Verification: dependency graph validated (all ids resolve, no cycles,
topological order clean); docs-only change.

Refs: docs/plans/implementation.md §Wave 3
2026-10-11 23:48:23 +00:00
glm-5.3-flash 79cf1f0220 docs(review): the wave-2 review gate — every gate check green
Read the wave-2 implementation against the pinned ADR text line by
line (ADR-003/005/006/010/011/012/013 §2, store-api.md): the three
numbered unknown-length rules each test-backed, the delete-window
ordering invariants (arbitrate-at-delete-time, pin-before-publish on
both put paths and both tiers, raced conversion ordering,
delete-then-recover), abort-as-data with all three causes, dispatch
purity + fall-through + constructor modes + kv-only's two put-time
rejection points, stage-hygiene exact counts on both engines (incl.
the Drop-cancellation story), both suite columns green/ADR-stamped/
traceable with the factory binding recorded, the dispatch-coverage
shape exercised, all eight named design points recorded and
consistent, and the staged-put key-at-commit amendment audited
accepted. No wave-3 amendments arise.

Inline fixes applied by the gate:
- facade.rs: stale Batch::add dead-code allow + stale task-pointer
  comment removed (put_in_batch's call sites landed)
- dispatch.rs: module-level allow(dead_code) removed (route/Tier now
  driven; clippy clean without it), scope note updated
- backend.rs: the allow kept but its scope note corrected to what is
  actually dead (trait name, kv put until wave 3)
- mem.rs: stale constructor doc line updated to the landed state
- tasks/gc-protocol.md: stray placeholder lines removed

Verification: cargo test (42 lib + 2 conformance + 3 git-interop),
cargo test --features mem and --all-features (97 lib + 37 conformance
+ 4 git-interop), clippy --all-targets and --all-features --all-targets
(-D warnings), fmt --check — all green post-fix. Wave 3 decomposition
unblocked.
2026-10-11 23:42:42 +00:00
glm-5.3-flash 45c456989f feat(tests): the conformance suite's local column — the dual-tier dispatch-coverage shape green (wave 2)
- tests/conformance/local_column.rs: the first dual-tier column, run
  against the kv = mem + large = local factory (ADR-012 §6.3) — fresh
  temp-root store per open, per-instance tracked roots, idempotent
  teardown safe against abandoned/panicking rows (structural tests
  included); never skips (mem-gated — the dual-tier constructor rides
  feature mem until wave 3 provides an ungated kv engine)
- the reference INV row set (rows.rs) mirrored against the dual-tier
  factory at a column-declared tuned threshold (1024), so the shared
  matrix and race fixtures exercise both tiers' bodies (INV-7)
- dispatch rows grown: pure-function routing across put paths and
  re-puts with an on-disk placement oracle (tier residency is
  facade-invisible; with kv = mem the medium is the oracle), threshold
  boundary legs at the tuned and shipped-default thresholds with the
  constructor-tuned re-route leg, and fall-through per op with
  both-tier miss shapes (ADR-003/ADR-012 §6.1/§6.3/§6.5)
- local-specific rows: on-disk stage-hygiene exact counts over both
  put paths (the real stage form, INV-3), pread windows over committed
  files with slice digests verified independently (ADR-006/ADR-010),
  virgin-store no-ops on a fresh root, and exact sweep counts over a
  both-tiers pool (INV-4/INV-5's both-tiers form)
- rows.rs shared fixtures made pub(crate); README records the column's
  row inventory (§Columns beyond the reference set), the declared-
  threshold posture, and the new current state
- stat-as-stat rides the mirrored INV-6 row's over-threshold legs;
  the Drop-cancellation hygiene form stays per-engine (recorded)

Verification: cargo test (default) green; cargo test --features mem
green (97 lib + 37 conformance + 4 git-interop); cargo test
--all-features green; clippy --all-targets -D warnings green in both
feature shapes (default + all-features); cargo fmt --check green;
cargo doc --no-deps shows only the pre-existing warning class
2026-10-11 23:30:31 +00:00
glm-5.3-flash f86e20a217 feat(tests): the conformance suite's mem column — the reference row set green (wave 2)
- rows.rs: the reference row set (INV-1…6 + two constructor-mode rows),
  factory-generic and engine-uniform, every row ADR-stamped and traced
  to the backlog: round-trips over the content matrix on both put
  paths, dedup (same/cross-path), stage hygiene (both paths, both
  injectable failure modes, kv-degenerate residue via sweep outcomes),
  sweep safety (full-protection-set happy shape, all three
  GcAbortCause abort shapes incl. the single-flight SweeperLock lease,
  the sweep-vs-pinned-put race), list correctness through exact sweep
  outcomes only, stat discipline, mem-only posture, and kv-only
  put-time rejection (threshold discovered by free probes; immediate/
  mid-stream rejections and at-threshold-lands legs)
- mem_column.rs: the column's factories — mem-only (reference host)
  and kv-only(mem) at a declared threshold — fresh isolated opens,
  no-op idempotent teardown; structural factory-contract tests cover
  isolation and teardown against a panicking row
- README: the reference row set recorded (INV-7's basis — what other
  columns mirror), the row-lifecycle convention, column plan and
  current state updated
- task suite-column-mem: status completed, notes and summary filled

Verification: cargo test --features mem (97 lib + 18 conformance +
4 git-interop), cargo test (default), cargo test --all-features,
clippy --all-features --all-targets -D warnings, fmt --check, and
cargo doc --no-deps — all green
2026-10-11 23:19:59 +00:00
glm-5.3-flash 539dabcbf7 feat(store): the put seam — two internal paths, the three numbered rules, Batch, kv-only rejection
- `put(len: Option<u64>, stream: impl AsyncRead + Unpin + Send) -> (Key, Pin)`:
  known-length one-pass flow; unknown-length buffer-to-threshold flow with
  the mid-stream fresh-stage flush (ADR-003 option (d), three numbered rules:
  flush-and-continue, derivation over the eventual stored artifact as a
  whole via buffer form and StagingCursor read-back form, zero residue on
  stream error)
- staged-put seam amended (operator sign-off): `put_staged()` keyless
  handout, `StagingCursor::commit(self, key)` publishes under the
  store-core-resolved key — the canonical key completes at stream end and
  the wave-1 handout shape could not express the commit-rename flow
- pin-before-publish rides the arbitration lock on both paths and both
  tiers; dedup re-puts refcount the existing entry
- Batch seam: `Store::batch()` + `put_in_batch()`, members publish pin-
  before-publish, group pins drop together on `Batch::commit` (new public
  verb) or drop
- kv-only rejection (ADR-012 §6.2): known-length over-threshold rejects
  immediately (stream never read), unknown-length at mid-stream overflow;
  zero residue; error carrier `Io(String)` (named design point)
- declared-len mismatch rejects `Verification` zero-residue (named design
  point); stream shape generic-no-dyn (named design point)
- incremental BlobHasher (pinned byte-equal to Algorithm::derive);
  AnyStaging cursor dispatch; git-interop put-path leg against
  git hash-object; eleven put-path behavior tests

Verification: cargo test (default/--features mem/--all-features) green;
clippy --all-targets -D warnings green in all three feature shapes;
cargo fmt --check green; cargo doc --no-deps at the 24-warning baseline.
2026-10-11 23:00:14 +00:00
glm-5.3-flash 889be4cada feat(gc): the in-process GC protocol — pins, liveness, delete windows, sweep, direct delete
The gc-protocol task (ADR-005; abort-as-data per ADR-012 §1; non-SQL
inline window staging per ADR-012 §5) wired on the Store facade:

- src/gc.rs — GcHome + RegistryCore: one arbitration lock over per-key
  pin refcounts, in-flight delete markers, and the registered source
  lists; async pin minting (acquire) that blocks on in-flight deletes
  (ADR-005's re-put case (a) delete-then-recover without engine I/O
  under the lock); the ordered-step convert primitive (pin release +
  registration in one section); batch one-step release; the
  single-node sweep lease (the in-process analog of ADR-013 §2).
- src/facade.rs — Pin/Batch carry the registry back-reference and own
  their drop release (batch drop decrements every member in one
  ordered step); new public vocabulary LivenessSource, ProtectCallback,
  Registration, re-exported from lib.rs.
- src/store.rs — sweep() (single-flight → zero-source safe default →
  protect consult → mark over both tiers' list() union → arbitrate at
  delete time → ~100/batch commit → exact-count report or
  abort-as-data), direct delete() (existence probe → full protection
  set per ADR-012 §6.4 → GcRefuse/Missing/delete through the
  fall-through), and the registration/unregistration verbs.
- 16 new tests + the facade pin/batch shape test reworked on the wired
  machinery: exact counts across both tiers, abort shapes, dedup
  refcounts, batch drops, live-shared sources, the conversion ordered
  step sequentially and raced, sweep-vs-pinned-put (64 rounds, every
  schedule, byte-identical delete-then-recover), publish-after-mark,
  no-torn reads under a window, single-flight contention, and
  malformed-list sweeps as operational errors.
- tasks/gc-protocol.md — status completed; named design points recorded
  in Notes.

Verification: cargo test (default) 46 passed; --features mem and
--all-features 89 passed each; cargo clippy --all-targets -- -D
warnings (default and --all-features) clean; cargo fmt --check clean;
cargo doc --no-deps at the pre-existing baseline (no new warnings).
2026-10-11 22:40:09 +00:00
glm-5.3-flash f1f505a910 feat(store): the read paths — get/stat/read_range/has/list on the fall-through rule
- Public `(len, stream)` shape: `Store::get` returns
  `Option<(u64, Blob)>`; `Blob` (src/facade.rs) is a bounded, re-entrant
  windowed reader over the new crate-internal `AnyCursor` tier dispatch
  (mem materializing / local pread body families) — engine cursors
  never leak onto the surface; no chunk-iterator machinery.
- Verification-on-get pinned against ADR-006: kv-tier materialized
  reads whole-blob hash-check at get time (mismatch = Err(Verification),
  never a further fall-through); the large tier's streaming open is
  metadata + handle only (put-path verification + slice digests are its
  story); `read_range` carries slice digests only, on both tiers.
- `stat` rides the trait's `size` probe (never a content load) into
  `EntryMeta { len, algorithm }`; `has` is the pure existence probe;
  both fall through kv -> large like every key-addressed op (ADR-012
  §6.1) — consult order, not routing (never consults `tier_for`).
- Miss shapes enforced (the error module's behavioral note): both-tier
  misses are Ok(None) on get/stat, false on has, Err(Missing) on
  read_range; `src/error.rs` wave-2 deferral notes updated to enforced
  state.
- `list` decided Vec<Key>: materialized, sorted total-order union of
  both tiers (the sweep consumes the engines' enumeration directly);
  malformed pool bytes are fatal `Err(KeyInvalid)`, never a silent
  skip.
- `KeyInvalid` at the facade boundary: ops take opaque key bytes and
  convert via `Key::from_bytes` once (`boundary_key`); engines never
  see typed keys.
- Twelve read-path tests: virgin-store shapes per mode (dual-tier,
  mem-only, kv-only), the `(len, stream)` windows, fall-through,
  kv-first (decoy content in the large tier), both verification
  postures, list union/sort/pool-fatality, and malformed-key
  rejection on every op.

Task: tasks/store-read-paths.md (design points recorded in Notes for
the wave-2 review gate).

Verification: cargo test (default), cargo test --features mem, cargo
test --all-features green; cargo clippy --all-targets -- -D warnings
green in all three feature shapes; cargo fmt --check green; cargo doc
--no-deps clean beyond the pre-existing private-intra-doc-links class.
2026-10-11 22:28:01 +00:00
glm-5.3-flash 532adfa707 feat(store): the Store facade — constructor modes, size-threshold dispatch, the factory binding
The wave-2 facade skeleton and routing (tasks/store-construction.md):
the public surface consumers program against, with the ops methods
still to land against it in store-read-paths/gc-protocol/store-put-paths.

- src/store.rs — the public `Store` type (engine-blind, ADR-007/008/
  010) over crate-internal tier enums (`KvEngine`{mem}, `LargeEngine`{
  local}): the engine-representation design point decided as concrete
  + enum dispatch, generic rejected (pub(crate) engines, no dyn);
  the three constructor modes as named constructors — `mem_only`,
  `kv_only_mem`, `dual_tier_mem_local` (the ADR-012 §6.3
  dispatch-coverage shape) — with `StoreMode` introspection; the
  write-side routing seam (`tier_for`), the read-side fall-through
  order (`kv()` then `large()`, ADR-012 §6.1), and the `GcHome`
  GC-state field; the ADR-012 §3 fleet declaration ruled deferred to
  the engine waves (nothing fleet-valid is constructible yet)
- src/dispatch.rs — the pure routing function (`route`, at-or-below
  → kv), `DEFAULT_DISPATCH_THRESHOLD` (128 KiB) exported at the
  crate root, boundary-value unit tests (exactly-at-threshold,
  degenerate tunings, purity)
- src/gc.rs — `GcHome`: the store-instance GC-state home the
  gc-protocol task fills (in-process; fleet state stays on the
  engine-state seam per ADR-010 §2/ADR-012 §4)
- tests/conformance — the wave-2 binding made as anticipated: the
  factory's `Store` associated type collapsed into the concrete
  `alkblobs::Store` (`open` vends it directly), recorded in
  factory.rs + README; the wave-1 mock probe retired, replaced by
  mem-gated binding demo factories (binding.rs) over both
  constructible shapes

Verification: `cargo test` (default), `cargo test --features mem`,
`cargo test --all-features` green (41/53/53 unit + conformance
targets green in all three shapes); `cargo clippy --all-targets
-- -D warnings` green in all three feature shapes; `cargo fmt
--check` green; `cargo doc --no-deps` adds no warnings beyond the
pre-existing private-intra-doc-links class.
2026-10-11 22:18:32 +00:00
glm-5.3-flash 856d436f81 feat(engines): the local large-tier engine — sharded files, stage-then-commit-rename, pread cursors
- LocalBackend: flat {hex-prefix}/{hex-prefix}/{hex} sharding over
  lowercase-hex-of-Key::as_bytes filenames (self-describing; the
  list-decode round-trip recorded for the review gate); virgin-store
  reads are no-ops
- staged put: unique stage files under {root}/staging/, commit-rename
  is the publish, CAS first-writer-wins, every failure path (discard,
  failed commit, Drop cancellation) converges on zero residue
- read cursor: pread loop over the immutable committed file, EOF
  clamping, provided read_range composing the slice-digest convention
- all file I/O in spawn_blocking; size is a stat, never a content load
- list walks the committed tree and is fatal (Error::Io, path named)
  on anything that does not decode — complete and well-formed
- 11 in-module unit tests incl. exact-count stage hygiene over all
  failure forms and the success form

Verification: cargo test (44 green), clippy --all-targets/--all-features
-D warnings, fmt --check — all clean

Task: tasks/engine-local.md
2026-10-11 22:05:59 +00:00
glm-5.3-flash 0b43ea1449 feat(engines): the mem contract-reference engine — first real engine (wave 2)
- src/mem.rs: MemBackend implements Backend (seven methods + put_staged,
  name "mem") over Arc<parking_lot::Mutex<BTreeMap<..>>>; CAS
  first-writer-wins puts, materializing MemCursor body, degenerate
  in-memory MemStaging whose commit publishes via the same CAS clause
  and self-discards on failure; discard leaves zero residue.
- CAS re-put is dedup for both put forms; reads are no-ops on the
  virgin store; delete carries Missing; size is metadata-only.
- Eight in-module tests mirror the wave-1 double's assertions: method
  contract, list well-formedness, cursor body read contract + ADR-006
  range digest, empty-entry round-trip, staged happy path, and both
  hygiene forms (fail_commit test hook stands in for media failure).
- backend.rs: clamped promoted pub(crate) — the shared EOF-clamping
  arithmetic both mem cursor bodies compose (no per-engine duplicate).

Verification: cargo test --features mem (33+7 green); cargo test
(default) green; clippy --all-features --all-targets -D warnings green;
fmt --check green.
2026-10-11 21:56:29 +00:00
glm-5.3-flash 6bce301c55 docs(tasks): decompose wave 2 — mem + local engines, facade, in-process GC, first suite columns
Nine tasks against the wave-1 contract surface as reviewed (no
amendments from the gate):

- engine-mem / engine-local (parallel, dependency-free): the two
  engines; local owns the stage-hygiene exact-count tests and the
  Drop-cancellation story the wave-1 review recorded
- store-construction: the Store type, constructor modes, size-threshold
  dispatch; binds the conformance factory's Store associated type
- store-read-paths ∥ gc-protocol: read ops with the ADR-012 §6.1
  fall-through rule; the ADR-005 in-process protocol (pins, liveness,
  delete windows, abort-as-data, GcRefuse with the full protection set)
- store-put-paths: the two put paths behind one signature, ADR-003's
  three numbered rules, pin-before-publish, Batch, kv-only rejection
- suite-column-mem → suite-column-local: the reference column, then the
  dual-tier dispatch-coverage shape mirroring it
- review-wave-2: the gate (facade/dispatch/GC vs ADR-003/005/012)

Verification: dependency graph validated (all ids resolve, no cycles,
topological order clean); docs-only change.

Refs: docs/plans/implementation.md §Wave 2
2026-10-11 21:39:28 +00:00
glm-5.3-flash c1d9494c11 docs(tasks): the wave-1 review gate — the one-way-door audit green
Every gate check read against the cited ADR text: the key encoding
holds byte-exact against ADR-002 (tags, lengths, rejects, sort order,
preamble abstraction, live git-CLI interop, lowercase oid policy
recorded); the trait + I/O seams + engine-state seam match ADR-003/
010 and ADR-012 §5's reduced table; the error model's five variants
and single-enum altitude reading match store-api.md/ADR-012 §6.5; the
feature graph matches ADR-013 §4; all named design points audited
consistent; the suite convention and backlog are traceable; family
conventions clean. One inline fix: publish keyword `bao` -> `git`
(excluded technology named in metadata). Wave 2 decomposition
unblocked, no amendments.

Verified: cargo test (26 lib + 4 conformance + 3 git-interop passed),
cargo clippy --all-targets -- -D warnings, cargo clippy --all-features
--all-targets -- -D warnings, cargo fmt --check, cargo check
--all-features, cargo check --no-default-features --features pg-lo.
2026-10-11 18:53:40 +00:00
glm-5.3-flash 327b952e4d feat(tests): the conformance suite's home — conventions, invariant backlog, harness skeleton (wave 1)
- tests/conformance/README.md: the convention doc — row naming (property-
  stated names, engine dimension is the column), the Contract stamp:
  format (the alkstore ADR-017 §4.2 convention adapted), the one-
  normative-owner-per-property rule, the factory contract (fresh
  isolated instance per open, idempotent teardown, safe over an
  abandoned instance), the SKIP posture (SQL-attached columns skip
  cleanly server-less; acceptance requires green against the server),
  the invariant backlog (the seven store-api.md §Invariants registered
  as the rows-to-grow table with pinning citations), and the mem-first
  column plan (mem is the contract-reference engine, ADR-011 §2)
- harness skeleton, compile-able with zero rows: StoreFactory (fresh
  + isolated + idempotent-teardown contract; the Store associated type
  is wave 2's binding point for the facade type), stamp.rs (the
  marker + convention anchor), backlog.rs (in-code registry with a
  traceability gate asserting INV-1..7 mirror §Invariants in order)
- no engine-specific code; no dependencies added

Verification: cargo test (33 passed across lib + 3 targets),
cargo clippy --all-targets -- -D warnings, cargo fmt --check
2026-10-11 18:44:04 +00:00
glm-5.3-flash 0547c17876 feat(backend): the Backend trait, I/O seams, engine-state seam shape, and facade value types (ADR-003/010)
The wave-1 contract surface: everything engine-blind that waves 2-6
implement against. No engine bodies, no facade behavior logic.

- src/backend.rs: the pub(crate) Backend trait — seven methods +
  put_staged, opaque byte keys/values, size metadata-only, list
  complete-and-well-formed, virgin-store reads as no-ops (ADR-003,
  ADR-008); the ReadCursor/StagingCursor I/O seams with the read_range
  slice-digest convention (ADR-006) at one seam; unit tests against
  both body-family doubles, a test-double engine, and the stage-hygiene
  invariant's two forms (discard; commit failure self-discards).
- src/gc.rs: the engine-state companion seam as EngineWindowState /
  EngineFleetState — ADR-012 §5's applicability table expressed
  structurally (no dead machinery); JointTx ownership rule pinned in
  the signature (store holds the tx; engine contributes mechanics).
- src/facade.rs: EntryMeta, Pin, Batch, SweepReport, GcAbortCause
  (x3, #[non_exhaustive]), PinState with lifecycle contracts
  (ADR-005, ADR-012 §1); re-exported from lib.rs.
- Design points pinned for the wave-1 review gate in
  tasks/core-trait-and-types.md: pub(crate) trait visibility,
  associated-type put-form shapes, AFIT + associated types (no dyn).

Verification: cargo test (26 lib + 3 git-interop), cargo test
--all-features, clippy --all-targets -D warnings (default and
--all-features), cargo fmt --check, cargo doc --no-deps — all green.
2026-10-11 18:30:47 +00:00
glm-5.3-flash fef05b4ec5 feat(keys): the content-address layer — canonical hash derivation and key encoding (ADR-002)
Wave 1 task core-hashing-keys: the crate's declared one-way door,
implemented byte-exact to ADR-002.

- src/hashing.rs: Algorithm (exactly GitBlobSha256 canonical /
  GitBlobSha1 tolerated; BLAKE3 absent), Digest (known-length
  derivation H("blob <len>\0" + content) as primary constructor;
  from_git_oid_hex interop constructor, lowercase-only acceptance),
  and the hashing::registry constants (0x01/0x02, 0x00 reserved; new
  algorithm = new ADR)
- src/keys.rs: typed Key wrapper; as_bytes/from_bytes are the only
  backend-boundary conversions; 1 algorithm byte + digest bytes
  (33/21 total); rejects-never-guesses validation -> Error::KeyInvalid
- tests/git_interop.rs: the load-bearing test — byte-exact derivation
  against the `git hash-object` CLI, both algorithms, small and
  75-KiB content; external-oid round-trip into pool keys; both oid
  formats coexisting in one flat pool
- named design point (oid hex policy): lowercase-only acceptance,
  recorded in the task Notes and on from_git_oid_hex

Verified: cargo test (15 passed), cargo clippy --all-targets -- -D
warnings, cargo fmt --check, cargo test --all-features — all green.
2026-10-11 18:20:12 +00:00
glm-5.3-flash fc5ab57d18 feat(errors): the one-enum error family with altitude discipline
- src/error.rs: thiserror Error enum with the five ADR-012 \u00a76.5
  variants (Missing, Verification, Io(String), GcRefuse, KeyInvalid);
  doc comments carry store-api.md \u00a7Error model's semantics and the
  one-enum/two-altitude discipline (trait's effective members are
  Missing/Verification/Io/KeyInvalid; facade re-exposes with GcRefuse)
- no #[non_exhaustive] per the ADR-pinned variant set; Error derives
  Debug/PartialEq/Eq
- lib.rs re-exports Error
- unit tests: variant construction, the single-enum altitude shape,
  and the Missing-is-never-get/stat-absence doc contract (facade
  behavioral enforcement lands in wave 2)
- tasks/core-error-model.md: status completed; Notes + Summary filled

Verified: cargo test, cargo clippy --all-targets -- -D warnings,
cargo fmt --check
2026-10-11 18:10:04 +00:00
glm-5.3-flash 24d1c68343 feat(crate): scaffold the ADR-013 §4 feature graph and module skeleton
- Declare the decided feature graph in the manifest: sqlite default-on
  (rusqlite 0.40 bundled), postgres (tokio-postgres 0.7 +
  deadpool-postgres 0.14), mem (dependency-free), pg-lo pulling the
  shared pg driver cluster only (no postgres implication, ADR-010 §1),
  ops (alkcall 0.8.1, default-off); local ungated
- Replace the placeholder crate body with the module skeleton: lib.rs
  re-export shape, ungated stubs (hashing, error, backend, facade,
  dispatch, gc, local), engine stubs behind #[cfg(feature)]
  (mem, pg_lo, postgres, sqlite, ops); stubs are doc-comment-only so
  wave-1 tasks own the module bodies

Verification: cargo test green (default); cargo check --all-features
resolves the full graph; cargo check --no-default-features --features
pg-lo resolves with rusqlite provably absent (tree-inverted match) —
the ADR-010 §1 no-implication rule; clippy --all-targets -D warnings
and cargo fmt --check clean.

Task: tasks/scaffold-crate-features.md (wave 1)
2026-10-11 18:01:18 +00:00
glm-5.3-flash 8a2df4fa57 docs(plans): implementation plan — wave-based decomposition; wave 1 decomposed into tasks/
- docs/plans/implementation.md: the meta plan (alkstore pattern) — nine
  waves, dependency logic, decided points, review gates. Scope authority:
  v0.1.0 ships the full surface (all five engines, fleet GC, ops).
- Wave 1 decomposed: scaffold-crate-features, core-error-model,
  core-hashing-keys, core-trait-and-types, suite-scaffold,
  review-wave-1 (the one-way-door gate).
- Waves 2-9 shaped in the plan; each decomposes after the prior wave's
  review gate.

Verification: cargo test / clippy -D warnings / fmt --check green
(docs-only change).
2026-10-11 17:43:02 +00:00
glm-5.3-flash 6f6ab19b8e docs(architecture): fix YAML-invalid frontmatter; changelog text moves to notes
- last_updated annotations containing ': ' ('family composition: ...',
  'feature graph re-pinned: ...', 'REQ-5 added: ...') broke Gitea's
  frontmatter parser in docs/architecture/README.md,
  backends-and-dispatch.md, and requirements.md
- last_updated is now a bare date; the annotation lives in a quoted
  notes field across all annotated architecture docs
- convention documented in .opencode/agents/architect.md: bare
  last_updated date, quoted notes, quotes required for ': ' scalars

Verification: all docs/**/*.md frontmatter parsed with yaml.safe_load
(16/16 OK); cargo test, clippy --all-targets -D warnings, fmt --check pass
2026-10-11 17:20:50 +00:00
glm-5.3-flash bee86b0dbd docs(architecture): ADR-013 — family composition, reactive boundary, sweep lease; OQ-11 resolved
- No sibling (alkstore) dependency in-core; reactivity is
  deployment-layer composition above the facade — cadence stays
  embedder-owned (ADR-005), with alkstore the named substrate for it;
  in-crate notify/scheduler/queues/invalidation hooks are non-goals.
- Fleet sweeper lock pinned as 'named exclusive sweep lease'
  semantics; shipped provider unchanged (pg advisory clause);
  provider swaps are ADR-007-shaped substitution doors.
- Composition contract for downstream ADRs: co-tenancy of CAS/GC
  state + reactive machinery + consumer/liveness tables on one fleet
  host; no-cross-store-atomicity ruled; compensation rests on
  idempotent re-puts, windowed deletes, sweeps-as-report-data.
- OQ-11 resolved (the register's one live circular hedge): engine
  features pull their own driver clusters — sqlite becomes feature
  'sqlite' (default-on, carries rusqlite); 'kv'/'large' tier features
  retired; 'local' ungated; pg-pure builds are supported,
  non-default. Deciding fact already in-tree (REQ-2/ADR-009).
- requirements.md: UC-4/REQ-5 records the composition facts
  (operator record 2026-10-11, corroborated by alkstore's
  consumer-inventory).
- Publish guard stated pre-code: facade ships before publish;
  semver-is-contract from first publish (alkstore ADR-017 discipline).
- Amended accepted ADRs' feature wording (ADR-010 §1, ADR-011 §3/§4,
  ADR-003) with supersession notes; README/overview/open-questions/
  backends/store-api/gc aligned; parked index now empty.

Verification: docs-only round (no Rust surface touched); full-tree
single-value check on the feature graph and sweep-lease wording.
2026-10-11 16:47:22 +00:00
glm-5.3-flash 7b9d904b8a docs(architecture): ADR-012 — pre-decomposition consistency rulings; tree verified single-valued
Full-tree review before task decomposition found five composition
defects (mechanisms specced correctly in isolation, composition
unruled) and a set of caller-facing gaps. ADR-012 rules each:

- Sweeps are never errors: aborts are GcAbortCause report data in
  Ok(SweepReport) (ProtectFailed / SweeperLock / NoLivenessSources);
  GcAborted retired from the error enum; direct-delete refusal is
  the GcRefuse error covering the full protection set
- Pin token gains its wire shape: blobs/put response {token, digest};
  blobs/have's token-renewal form (one digest + token); token
  validity domain = the minting serving node, process-lifetime
  mapping
- Fleet mode is an explicit constructor declaration (fleet: true),
  never inferred from engine choice
- All fleet GC state hosts on the fleet's kv engine (postgres) — one
  arbitration domain; large=pg-lo fleet nodes required onto the same
  pg instance (composite predicate's new clause); large=local fleet
  puts pin-row-first, publish-second
- Engine-state seam reduced: sqlite pin/sweep-lock bodies dropped
  (dead machinery); non-SQL engines stage delete-window candidates
  in-process; one-window-host rule per instance
- Facade clarifications: fall-through for all key-addressed ops,
  kv-only put-time rejection, mem+local dual-tier valid, error-model
  member/return-shape ruling (trait/facade family split), has ->
  bool, PinState variants, fleet liveness-table registration form,
  window executor = the next sweep

Alignment edits across all specs and ADR-005/008/009/010/011
(bracketed corrections per the established pattern); OQ-11 (pg-only-kv
feature graph) added to the parked index for auditability.

Verification: two independent review passes; all findings resolved;
verdict READY for task decomposition.
2026-10-03 07:14:45 +00:00
glm-5.3-flash abf8c5ae9c docs(architecture): ADR-010/011 — I/O seams, GC-state home, vocabulary; pre-decomposition consistency round
ADR-010 (new): the Backend trait's I/O seams pinned before any code —
'get' returns a crate-internal read cursor (kv engines materialize;
'local' pread loop; pg-lo lo_get windows), 'put' has two named forms
(whole-value kv / staged-put large); GC state is store-core-owned via
a crate-internal contract-tested engine-state seam on the SQL-backed
engines (backends never learn liveness — ADR-005 verbatim); the store
core holds the joint entry+pin transaction (corrects ADR-009 §2's
ownership statement); kv-tier fleet-validity rule added (mirror of
ADR-008 §3); ops pin-token TTL race resolved (the token IS the pin;
renewal rides have/re-put; pause-past-TTL falls to delete-then-recover);
feature graph pinned (pg-lo does not imply postgres).

ADR-011 (new): vocabulary pinned — tier (contract, exactly two) vs
engine (concrete impl, exactly five); store instance / node / fleet
split (fleet = pool-sharing, not node count — fixes requirements.md's
self-contradiction with REQ-2); mem demoted from 'backend'/'testing
tier' to the kv tier's third engine (contract-reference engine);
fs tier renamed 'large' including the feature name (last free moment
before code exists); constructor modes pinned (dual-tier default,
kv-only, mem-only) plus the composite fleet-validity predicate.

Consistency round across all specs and ADR-003/004/007/008/009: stale
pg-lo passages resolved per ADR-009's supersession; ADR-008 owner
'node id' → store-instance id; threshold wording corrected (conservative
edge, not midpoint, of the 128-256 KiB crossover zone); SweepReport
shape specced; mem classification unified; 008/009 ADR files renamed to
match the tier rename; README deferral-policy recap aligned (third
category = decided-but-sequenced work, not a parking kind); POC crate
list completed.

Verification: two independent architecture review rounds (the first
found 4 criticals — unpinned trait I/O shapes, missing fleet-state
seam, node/fleet self-contradiction, pin-token/TTL conflict — all
resolved; final round: zero criticals); all markdown links resolve;
ADR tables complete (11 ADRs).
2026-10-03 05:55:20 +00:00
glm-5.3-flash 9bbe6f3ad9 docs(architecture): ADR-009 — pg-lo admitted as the fs tier's second engine on POC #7
- ADR-009 (new): postgres Large Objects ship as the fs tier's second
  engine (feature pg-lo, default-off), admitted on POC #7's passed
  gate (contract 10/10, durable put ~= fs at >=1 MiB, lo_get window
  gets, transactional LO lifecycle = zero crash orphans). Engine
  shape: companion table (lo_entries) is the contract authority; put =
  one tx (lo_create + lowrite + row + pin); get = descriptorless
  lo_get windows (lo_*64 discipline); named operator deltas (catalog
  space never returned / autovacuum inherited / sweep for the legacy
  bypass class only) and named performance deltas (cached-get 20-50x
  behind page-cache fs single-stream, ~700 MB/s aggregate at 16
  readers = the fleet serving picture).
- Ripple: backends-and-dispatch (pg-lo shipped; fleet locality
  contract gains the whole-fleet-pg-lo option), overview (layer map,
  feature table + pg-lo row, OQ -> shipped pointer), requirements
  (engine def + REQ-2 note updated), README (current-state + ADR
  table), store-api (invariant 1/6 engine lists), ADR-008 Status
  amendment (pg-lo posture superseded by ADR-009), open-questions
  (audit trail completed: decided -> sequenced -> completed).

Verification: docs-only; all cross-references resolve (ADR/REQ/POC);
register, findings, spec, and both engine-ADR status lines agree.
2026-10-03 04:30:31 +00:00