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Daily Log: 2026-04-22 ​

Quiet day with minimal direct user interaction. The unshape project continued in the background from the prior day's long session, with final messages at start-of-day (01:03) and mid-afternoon (16:02). No new project sessions initiated.

Sessions and Activity ​

unshape (2026-04-20–2026-04-22, extended session) ​

The prior day's unshape session (design philosophy, prior art review, and systematic op wrapping) continued into the early morning and afternoon of 2026-04-22. Two user messages bracket the day:

  • 01:03:31: okay, that all for today then? — end-of-session check [in:3 out:281]
  • 01:04:10: User indicates freedom to keep delegating — follow-up permission [in:5 out:6072]
  • 16:02:56: push i guess? — final message committing accumulated work [in:7 out:305]

Between these messages, 4 subagent tasks completed overnight/throughout the day:

  1. Voronoi fracture op (unshape-mesh/src/voronoi.rs) — area-weighted Scatter, Sutherland-Hodgman clipping for straddling triangles, interior offset, 7 tests, 361 total tests passing
  2. UV projection and packing ops (unshape-mesh/src/uv_ops.rs) — 13 Op structs wrapping free functions (Planar, Cylindrical, Spherical, Box, Atlas packing), 16 tests
  3. CurvatureField + ConstantMesh (unshape-field/src/mesh_field.rs, unshape-serde/src/typed_constants.rs) — precomputed curvature types (Gaussian, Mean, Max, Min), mesh constant nodes for graph inputs
  4. Dual contouring mesh extraction (unshape-mesh/src/dual_contouring.rs) — naive dual contouring on uniform grid with QEF vertex solving, 8 tests validating geometry accuracy and resolution scaling

All subagent tasks completed with clean builds and passing tests.

Token Usage Summary ​

Total activity: 2 direct user messages across the unshape session

  • Message 1 (01:03:31): in:3 out:281 cache_read:11,715 cache_create:98,807
  • Message 2 (16:02:56): in:7 out:305 cache_read:607,030 cache_create:137,860

Aggregates:

  • Input tokens: 10
  • Output tokens: 586
  • Total cache_read: 618,745
  • Total cache_create: 236,667
  • Cache hit ratio: 618,745 / (618,745 + 236,667) ≈ 72.3%

High cache hit rate reflects warm context reuse from the prior day's session — the session remained live across the day boundary with accumulated state and intermediate task completions.

Observations ​

  1. Delegation at scale: The unshape session exemplifies high-leverage delegation. After the prior day's design discussion and op-wrapping sprint (11:26–15:46), the user granted open permission to keep delegating ("you're free to keep delegating for a while?"). Four independent subagent tasks executed overnight and into afternoon with minimal user guidance — geometric algorithms (Voronoi, dual contouring), data infrastructure (ConstantMesh), and graph interfaces (UV packing ops).

  2. Cache efficiency on long sessions: Two brief user messages (586 output tokens total) drove 72% cache efficiency. The session context persisted across 15+ hours, allowing subagents to reuse warm caches from task completions rather than re-reading files or re-establishing context. This is infrastructure-level efficiency.

  3. Quiet day pattern: This is characteristic of delegation-heavy workflows — the user provides direction, then steps back while subagents iterate. Low token cost per day because all heavy lifting happens in background tasks (subagent notifications are summarized, not expanded in the conversation).

Projects Touched ​

  • unshape (generative media toolkit) — heavily delegated, 4 parallel subagent completions over 15+ hours