Hypernym Infinite Memory · v0.64 closeout · generated 2026-06-10

The tiny lease passed. The large row was still rejected.

v0.64 tested whether two exact OK chat probes could safely reserve the shared direct-IP lane before resuming memory-pressure rows. The probes passed, but the immediately following 2048-pressure benchmark row returned seven fast 503 busy responses. This is an admission-control finding, not a recall result.

Lane lease

2 / 2

Two exact OK probes passed.

Benchmark rows scored

No memory row reached HTTP 200.

First row attempts

All fast 503 busy.

Recall claim

None

No success or failure should be inferred.

What We Learned

A tiny successful probe does not predict admission for a large 2048-pressure row on the shared endpoint.
The readiness problem is now precise: /health OK, tiny chat OK x2, large row 503.
The harness kept the result out of memory-quality scoring, which preserves the science.

What Not To Claim

Do not claim story-canon recall failed.
Do not claim cross-domain recall failed.
Do not use this as a model-quality datapoint.

Trace

Step	Status	Elapsed	Meaning
Idle probe 1	200 OK	0.2769s	Exact content `OK`; success streak 1.
Idle probe 2	200 OK	0.3279s	Exact content `OK`; success streak 2.
First benchmark row	503 x 7	~0.50-0.55s each	`Backend busy: 1 request(s) already in flight`.
Classification	capacity only	pre-score	`lane_probe_passed_but_benchmark_row_busy`.

CTO Decision

Institutional eval readiness must be request-size-aware or explicitly reserved.

Best: isolated benchmark lane.
Strong: server-side lease or queue token.
Fallback: calibration probe near benchmark-row size.
Operational fallback: coordinated quiet window with other shared-service users.

Carryforward Memory Evidence

v0.62 remains the latest positive memory-quality result: 4/4 scored research-update rows passed strict and semantic true-north at 1024/2048 pressure, with 247,962 prompt tokens counted on successful rows. v0.64 only changes the serving-readiness requirements.

Data Trace

Evidence	Path	Use
v0.64 scores	`research/tracks/hypernym-infinite-mim/results/v0.64-lane-lease-unscored-domain-resume/20260610T_lane_lease_unscored_domain_resume_live_codex_v1/scores.json`	Aggregate stop reason and classification.
Lane lease trace	`research/tracks/hypernym-infinite-mim/results/v0.64-lane-lease-unscored-domain-resume/20260610T_lane_lease_unscored_domain_resume_live_codex_v1/idle-probe-before-first-row-attempts.json`	Two exact `OK` successes.
First row attempts	`research/tracks/hypernym-infinite-mim/results/v0.64-lane-lease-unscored-domain-resume/20260610T_lane_lease_unscored_domain_resume_live_codex_v1/v064-story_canon_supersession-controller_expands_tail_contract-p2048-attempts.json`	Seven fast 503 responses.
Snapshot	`.forge/artifacts/cxdb-hypernym-infinite-mim-post-v064-interrupted-snapshot-20260610T075855Z.md`	Durable handoff.
v0.62 positive result	`research/tracks/hypernym-infinite-mim/results/v0.62-tail-contract-cross-domain-pressure/20260610T_tail_contract_cross_domain_pressure_live_codex_v1/scores.json`	Last scored recall evidence.

Compound Research Chain

Artifact	Pointer
Current public board	https://hypernym-infinite-memory-v09.pages.dev/
Previous immutable v0.63 board	https://df021339.hypernym-infinite-memory-v09.pages.dev/
Working memory	`research/tracks/hypernym-infinite-mim/WORKING_MEMORY.md`