Lesson 253: Q4 Playtest Scale Capstone Receipt (2026)

Direct answer: Q4 2027 July playtest scale closes when q4_playtest_scale_capstone_v1.json links eight child receipts from Lessons 245–252, proves build_label alignment across wasm crash labels, VN save/language isolation, UE menu minidumps, sprite bridge hash, hero glTF hash, VO consent metadata, Resolve→OBS trailer handoff, and Spline playtest LCP under load, and points to Q3 capstone (244) plus H2 capstone (223) so August concurrent playtest invites are not “Q4 receipts GREEN, prior arcs unknown.”

Why this matters now (August 2027 concurrent playtest scale gate)

August 2027 producers filed eight July scale receipts—Bevy crash build_label, Ren'Py save/language, Unreal menu minidump, Aseprite bridge hash, Blender hero glTF, Audacity VO consent, DaVinci trailer handoff, Spline LCP under load—but partners still ask: “Is this playtest-july-2027-rc1 safe to open concurrent Steam + itch playtest?” Thursday BUILD_RECEIPT review needs one Q4 Capstone section, not eight Discord threads.

This lesson closes arc 245–253 (same pattern as Lesson 244 Q3 capstone). Pairs Guide queue #9–#16 preflights, community playtest resources, and Wednesday demo smoke.

Beginner path (65-minute capstone audit)

Time: ~65 minutes when child lessons done; ~95 minutes first full Q4 audit.

Developer path (gates R1–R11)

Child receipt crosswalk

R1 cousin note: Lesson 214 is general crash symbolicate—capstone checks 245 wasm build_label only.

R6/R7 order note: Run 251 handoff map before 243 consent concat when both apply—Lesson 243 is Q3 cousin, not in this eight-pack.

q4_playtest_scale_capstone_v1.json

{
  "schema": "q4_playtest_scale_capstone_v1",
  "build_label": "playtest-july-2027-rc1",
  "arc_lessons": ["245", "246", "247", "248", "249", "250", "251", "252", "253"],
  "receipts": {
    "245": "playtest_crash_label_receipt_v1.json",
    "246": "renpy_playtest_save_language_receipt_v1.json",
    "247": "unreal_playtest_minidump_receipt_v1.json",
    "248": "sprite_bridge_hash_spot_receipt_v1.json",
    "249": "gltf_export_hash_receipt_v1.json",
    "250": "vo_consent_metadata_receipt_v1.json",
    "251": "trailer_handoff_receipt_v1.json",
    "252": "spline_playtest_lcp_spot_receipt_v1.json"
  },
  "receipt_paths": {
    "245": "release-evidence/playtest/PLAYTEST_CRASH_LABEL_RECEIPT.json",
    "246": "release-evidence/saves/RENPY_PLAYTEST_SAVE_LANGUAGE_RECEIPT.json",
    "247": "release-evidence/crash/UNREAL_PLAYTEST_MINIDUMP_RECEIPT.json",
    "248": "release-evidence/art/SPRITE_BRIDGE_HASH_SPOT_RECEIPT.json",
    "249": "release-evidence/art/GLTF_EXPORT_HASH_RECEIPT.json",
    "250": "release-evidence/audio/VO_CONSENT_METADATA_RECEIPT.json",
    "251": "release-evidence/playtest/trailer/TRAILER_HANDOFF_RECEIPT.json",
    "252": "release-evidence/03-web/SPLINE_PLAYTEST_LCP_SPOT_RECEIPT.json"
  },
  "prior_arc_pointers": {
    "q3_summer_playtest": {
      "lesson": "244",
      "schema": "q3_summer_playtest_capstone_v1",
      "path": "release-evidence/capstone/Q3_SUMMER_PLAYTEST_CAPSTONE.json",
      "required_for_q4_promotion": true
    },
    "h2_fest_hardening": {
      "lesson": "223",
      "schema": "h2_fest_hardening_capstone_v1",
      "path": "release-evidence/capstone/H2_FEST_HARDENING_CAPSTONE.json",
      "required_for_q4_promotion": true
    }
  },
  "gates": {
    "R1_playtest_crash_label": "pass",
    "R2_renpy_save_language": "pass",
    "R3_unreal_menu_minidump": "pass",
    "R4_sprite_bridge_hash": "pass",
    "R5_gltf_export_hash": "pass",
    "R6_vo_consent_metadata": "pass",
    "R7_trailer_handoff": "pass",
    "R8_spline_lcp_spot": "pass",
    "R9_build_label_crosswalk": "pass",
    "R10_prior_capstones_linked": "pass",
    "R11_capstone": "pass"
  },
  "q4_playtest_scale_promotion_allowed": true
}

Pin under release-evidence/capstone/Q4_PLAYTEST_SCALE_CAPSTONE.json.

BUILD_RECEIPT capstone row

CI verify_q4_playtest_scale_capstone_v1 fails when q4_playtest_scale_promotion_allowed is false and August concurrent playtest invite flag is set.

Key takeaways

1. Capstone = wiring Lessons 245–252—not re-exporting mezzanine, re-running CSP hash, or re-load-testing Spline from scratch.
2. build_label joins crash, saves, art, audio, trailer, and web rows (R9).
3. 251 before 243 when both highlight lanes apply—handoff map precedes consent concat.
4. 252 ≠ 233—concurrent playtest LCP vs fest marketing LCP.
5. 250 VO metadata ≠ 243 clip consent—both may be required for reels with voice.
6. Lesson 244 Q3 still required—July scale does not replace summer playtest wave audit (R10).
7. Lesson 223 H2 still required—fest hardening baseline (R10).
8. Q4 arc 245–253 closed — Course-Planner critical refill required (queue empty).
9. Thursday review lists 245–252 in one Q4 Capstone section.
10. Top 20 receipts hub — map Q4 rows beside Q3.
11. Pair Guide queue #17+ on the next ops wave (HDR tonemap, Deck letterbox, etc.).
12. Community playtest resources — recruitment ops, not receipt wiring.

Common mistakes

• Filing capstone while 252 idle-green only (skipped concurrent load spot).
• Promoting invite while 251 handoff_ok false but 243 clip consent GREEN.
• gltf_export_hash GREEN but 230 Fab throttle RED—hero hash ≠ texture throttle.
• Different build_label on 249 vs 252 landing matrix.
• Skipping 244 because “Q4 is a new arc.”
• Merging q4_playtest_scale_capstone_v1 into q3_summer_playtest_capstone_v1 JSON.

Troubleshooting

Mini exercise (90 minutes)

1. Mismatch one child build_label—confirm R9 fails.
2. Fix crosswalk; verify eight paths resolve.
3. Confirm 251 + 252 without re-running Resolve export or k6 in capstone.
4. Link 244 + 223 capstone JSON paths.
5. File q4_playtest_scale_capstone_v1.json.
6. Run Thursday review Q4 Capstone section.

Continuity — Q4 arc close (245–253)

Previous: Lesson 252 — Spline playtest LCP under load
Next: Lesson 254 — DaVinci HDR tonemap SDR Steam capture opens October ops arc 254–265.

FAQ

Same as Lesson 244?
244 wires 236–243 (Q3 summer wave); 253 wires 245–252 (July scale hardening).

Must Lesson 243 be GREEN?
243 is Q3 clip consent—not in the eight-pack; required for public reels that use Q3 VOD lane.

Can we skip 244?
No if required_for_q4_promotion is true in your gate JSON (R10).

Queue empty now?
No—October ops 254–265 queued May 27, 2026; start with 254 HDR Steam capture.

August concurrent playtest needs one capstone row—wire 245–252, link 244 + 223, file q4_playtest_scale_capstone, then promote the invite.