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Step 2: Techlead Review

Lambda Team — "The Last Diner"

Step 2 Beat Sheet — Technical Lead Review

Reviewer: Marcus Delaney (Tech Lead)
Date: 2026-05-18
Verdict: ⚠️ CONDITIONAL — 3 issues must be resolved before sign-off.


What’s Working


Issues (3 total — must fix)

ISSUE 1: Runtime at Risk — 186s (3:06) ⚠️

ScenePlannedTarget
1. Allegretto46s~60s
2. Accelerando42s~75s
3. Adagio54s~75s
4. Coda44s~60s
Total186s (3:06)~270s (4:30)

3:06 is dangerously close to the 3:00 floor. Once we apply crossfade transitions (which eat ~0.5s per transition) and any trimming in post, we will almost certainly dip below 3:00. We need 30–50 additional seconds.

Recommendation: Add 2–3 shots to Scene 2 (Accelerando) and 1–2 to Scene 1 (Allegretto). Specific suggestions:

These additions bring us to ~220–230s (3:40–3:50), safely inside the 3:00–5:00 window with room for crossfades.

ISSUE 2: COMPOUND Classification Error — 0 Valid Compounds ❌

Shots 3.1, 3.2, and 3.4 are tagged [COMPOUND] but none of them qualify. A [COMPOUND] shot requires two characters speaking sequentially within a single shot. Each of these shots has only one character delivering dialogue:

ShotTaggedCharacters SpeakingCorrect Tag
3.1[COMPOUND]Sarah only[DIALOGUE]
3.2[COMPOUND]Mark only[DIALOGUE]
3.4[COMPOUND]Mark only[DIALOGUE]

The checklist mandates at least 2–3 genuine COMPOUND shots.

Recommendation: Convert 2–3 existing two-shots into true COMPOUND shots where both characters exchange lines within one clip. Best candidates:

  1. Shot 1.4/1.5 merge → new COMPOUND: Two-shot over the table. Sarah says “You’re early,” Mark replies “And you’re exactly on time.” Both visible, sequential delivery. This is a natural dialogue ping-pong.
  2. Shot 2.1/2.2 merge → new COMPOUND: OTS two-shot. Mark’s espresso machine line, Sarah fires back about the manual. Rapid exchange within one frame captures the accelerating tempo.
  3. Shot 3.4/3.5 merge → new COMPOUND: OTS two-shot. Mark asks about the fire alarm, Sarah laughs about the blueberry tart. Shared memory moment — beautiful compound candidate.

Reclassify 3.1, 3.2 as [DIALOGUE].

ISSUE 3: Shot 1.1 — Betty Visibility Contradiction (Minor)

Shot 1.1 describes “A waitress pours coffee in the background.” We agreed Betty stays off-screen to preserve reference slots. Having her visible, even in background, introduces an uncontrolled third character that the model will render inconsistently across shots.

Fix: Change to “Steam rises from a thick ceramic coffee cup on the counter. A neon blue ‘OPEN 24 HOURS’ sign flickers through a rain-streaked window.” Props-only establishing shot.


Non-Blocking Notes


Checklist Verification

CriterionStatusNotes
Audio classification on every shotAll 27 shots tagged
VO-Safe RuleShot 4.5 [VO] has no speaking action
≥2-3 COMPOUND shots0 valid — see Issue 2
Timing hints on all dialogue/VOPresent
Character voice distinctionSarah clipped, Mark loose
Audio-Only Test⚠️Passes if COMPOUND shots are fixed — currently no sequential exchanges
Visual-Only Test[VO] shot 4.5 shows walking, not speaking
Max 2 characters per shotAll clear
Reference manifest within 3-ref budgetAll clear
Total runtime 3:00–5:00⚠️3:06 — needs padding (Issue 1)

Once Issues 1–3 are resolved, I’ll sign off on Step 2.