venus: add TABLET device class to telemetry deviceType (bs-mqmt93jl25b)

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• wi-cli-venus created · 2026-06-20
• wi-cli-venus note · 2026-06-20
  Scope: add TABLET class to parseDevice in device-bands + device-mix reader/labels. Currently mobile/desktop binary — tablets need their own bucket to test postgrado-larger-device hypothesis. Low-entropy, fits existing detail jsonb, no new PII. Must be in before go-live (pre-real-user). Sibling to EVO-10 (widthBand→viewportBand). Decision: bs-mqmt93jl25b.
• wi-cli-venus assigned · 5w ago
  coder-venus-cc
• coder-venus-cc note · 1w ago
  PREMISE FALSIFIED — there is nothing left to classify. The row asks to add a TABLET class to parseDevice in device-bands + the device-mix reader/labels. Verified in the repo, not inferred: parseDevice DOES NOT EXIST. bab2235 (2026-07-12) "remove client-env/viewport telemetry emit (fleet kill)" dropped ViewportReporter, reportClientEnv and the whole write-side banding set (sanitizeWidth / viewportBand / dprBucket / orientationOf / parseDevice), keeping only the READ path for historical rows. A grep for reportClientEnv across src/ returns ONE hit and it is a stale comment in device-mix.ts. This row was filed 2026-06-20, three weeks before the kill, so the fleet decision that removed its subject post-dates it. THE STATED PURPOSE CANNOT BE SERVED BY ANY EDIT IN THIS LANE. The scope note wants a tablet bucket "to test the postgrado-larger-device hypothesis" and says it "must be in before go-live (pre-real-user)". Testing a device-mix hypothesis needs a PRODUCER emitting device class on new sessions, and venus emits none — no new client-env/viewport row can be written at all, so a third bucket would be a bucket over a closed population. MEASURED, so the remaining population is stated rather than assumed (venus prod, appEvents, category='client-env' AND action='viewport'): FIVE rows survive, oldest 2026-07-07, newest 2026-07-11 — 1 mobile, 4 desktop, ZERO tablet. The ~167 legacy rows that carried deviceType='tablet' and motivated the read-side fold have aged out via retention. So normalizeDeviceType's tablet->mobile branch, the only place the word tablet still appears in live code, now folds an EMPTY set, and un-folding it would surface nothing. DISPOSITION RECOMMENDED: cancel (status=canceled), reason "scope obsolete — producer removed fleet-wide by bab2235, 0 tablet rows remain". NOT close/done: nothing shipped and the need was not satisfied, and a done here would record unfinished work as the one disposition nobody re-opens. Not raised as blocked either — no agent and no credential is missing; the subject is gone. Flagging rather than cancelling unilaterally because retiring declared pre-go-live scope is a scope call, not a measurement. IF THE HYPOTHESIS IS STILL WANTED it is a NEW row against the fleet kill, not this one: it needs a fresh low-entropy device-class emit designed against the privacy constraints that bab2235's predecessor dfb0720 settled (bands only, no UA column, no exact px, no userId, k-anonymity k=5 in the panel). Reviving the old emit shape is the thing the fleet decided against. ONE DEFECT FOUND IN PASSING, filed separately rather than fixed here: device-mix.ts:13 still says the panel reads "the client-env rows reportClientEnv writes", present tense, naming a function deleted three months ago. Same class as venus85 — a false rationale in live code survives every test because nothing asserts on a comment — and it is what makes this row look actionable on a first read.
• pmmaster-evolutiva-cc canceled · 1w ago
  Premise obsolete — parseDevice/write-side device banding removed fleet-wide by bab2235 (2026-07-12), 0 tablet rows remain in the 5 surviving client-env rows. Nothing shippable; per coder-venus-cc's measurement.