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t27f: idea factory pre-flight -- refuse an idea the font cannot draw before writing a frame - #10822

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Oct 19, 2026
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@gHashTag gHashTag commented Oct 19, 2026 •

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Closes #10820. Part of epic #10560. #10806 and #10792 have merged; this sits on #10816 (the batch), so until #10816 merges the diff also shows the batch test. The idea_factory seal was re-saved on the Railway lab after the merge: 17/17 pass, MATCH.

What this does

glyph57 draws a character it does not have as ?. Today an idea with a phi, a euro sign, { or ~ ships with the wrong letter on screen, and no test notices. This PR adds a pre-flight, the content-factory notes' competitor rule 11: a batch item fails before render, not after.

  • missing_glyphs(t) and first_missing(t) count the characters the font would draw as ?, and give the byte offset of the first one. Counting goes by code point, so a real ?, a | cut and a space do not count, and a malformed UTF-8 byte does.
  • preflight(t) checks in this order: PF_EMPTY, then PF_GLYPH, then PF_LONG (the reel runs past MAX_S = 60 s), else PF_OK.
  • main writes no frame unless the idea passes. An empty output therefore means the idea was refused.

Evidence (Railway lab, on top of 0a5dad1)

  • Tests: t27c test-report passes 17 of 17 tests, 0 vacuous. That is 3 new tests with 32 asserts. They cover Latin, Russian, phi, euro, a brace, a stray byte, the 1800-frame boundary, and the batch and sample ideas.
  • Mutants: 9 of 10 are killed. They include dropping the ? or | exemption, > to >=, counting bytes instead of characters, an off-by-one in the offset, swapping the GLYPH/LONG order and dropping the empty check.
    • The survivor, MAX_S = 61, is equivalent. Reels grow in 72-frame steps, so 60, 61 and 62 s refuse exactly the same ideas.
  • Generated binaries (t27c gen + zig build-exe -O ReleaseFast):
Idea Guard Bytes written
A{B} on 0
25 scenes (1872 frames) on 0
A{B} removed (control) 895795200 = 144 whole frames
sample idea on 1343692800 = 216 whole frames
  • t27b: the front end reports 0 unsupported constructs.
  • Seal: re-saved, and --verify reports all hashes MATCH.

Not claimed

This is a draft until its base PRs land, so the issue gate cannot merge it ahead of them.

🤖 Generated with Claude Code

gHashTag and others added 16 commits October 19, 2026 09:26
…article (Closes #10771)

particle_ds.t27 is the particle design system: five presets (noir-gold,
neon-vortex, trit-charge, paper-ink, rain) as rows of integers -- palette,
blend, radius, gain, spring, dashpot, force law, kick, card -- and one
Q8 integer step, kernel, tone curve and finish. idea_factory.t27 is the
factory: (idea, preset) -> 1080x1920 RGB24 frames. It wraps the idea into
lines and scenes, sets each scene in the 3x5 font, gives every particle a
target cell or a card-border point at each cut, and closes on the address.

Lab: test-report 12/12 and 8/8 pass, 0 vacuous; seals saved and verified;
dupe_scan clean; 5-preset preview rendered at 1080x1920.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
… on the lab, legibility by luma (Refs #10771)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
…lic font of particles (Closes #10788)

glyph57.t27 decodes UTF-8, folds lower case to capitals and stores a 5x7
font: ASCII 32..95 plus the 21 Cyrillic capitals with no Latin twin. The 11
look-alikes and Yo reuse Latin glyphs through a 32-entry map. idea_factory
now wraps by characters, keeps positions in bytes, and sets text in the 5x7
font (advance 6, line pitch 9).

t27c keeps "\xNN" in a string as four characters, so non-ASCII samples are
u8 arrays (RU_IDEA, 80 bytes). Lab: glyph57 7/7, idea_factory 10/10, 0
vacuous; seals verified; dupe_scan clean. The t27f skill records the trap.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
…the ledger (Refs #10788)

#10784 merged with t27b-native-ratchet red: five specs that pass under t27b
had no row in docs/reports/t27b_expectations.json (UNLISTED). Rows added,
sorted by path, all "pass" as the ratchet reported them:

  specs/fpga/analog_cell_ax7203.t27
  specs/port/trios-railway/crates/trios-igla-race/src/bin/debug_queue.t27
  specs/port/trios-railway/crates/trios-igla-race/src/bin/smoke_agent.t27
  specs/t27f/idea_factory.t27
  specs/t27f/particle_ds.t27

max_not_pass stays 138. glyph57.t27's row waits for this branch's arm64
run: the lab is x86_64 and the t27b JIT runs only on arm64.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
…ep the PR a draft until then (Refs #10788)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
On the x86_64 lab, the t27b front-end check (--check) prints every blocker
before it stops at "the t27b JIT runs only on arm64". glyph57.t27 and
petal_menu.t27 (new on master from #10786, also unlisted) reach that line with
no blocker. The control, frame_shard.t27, prints ExprCall(rejected fn). Both
rows are pass; this branch's arm64 run confirms them. max_not_pass stays 138.

The t27f skill's ratchet note said the lab cannot give a verdict. That was
wrong; it now gives the --check method and its control.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
…ESET_AUTO (Closes #10803)

A batch of ideas rendered with the factory all came out in PRESET 0
unless someone edited the constant by hand. Now PRESET = PRESET_AUTO (255)
makes main run pick_preset(IDEA, PRESET). That uses preset_of(IDEA), which
is FNV-1a 32 over the idea's bytes (UTF-8 for Russian) mod PRESETS, so the
same idea always gets the same style and different ideas spread over the
five. Any other PRESET is kept as given, and PRESET stays 0, so today's
render is unchanged. This is Remotion's random(seed), applied to style.

Railway lab: t27c test-report 13/13 pass, 0 vacuous. The fnv1a32 test
checks the published FNV-1a 32 vectors ("", a, b, foobar). Across the
one-letter ideas A..Z every preset is picked. 5 of 5 mutants are killed:
basis, prime, FNV-1 order, AUTO -> 0, mod 4. t27b raises no blocker, so
the pass row stands. gen emits pick_preset. Seal re-saved, all hashes
MATCH.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
…m master (Refs #10788)

Two of the three red checks on this PR came from master, not from the
glyph57 change. specs/analog/mos_psp103.t27 and mos_psp103_data.t27 landed
on master without t27b ledger rows, so the ratchet reported them UNLISTED.
They are added in sorted position as pass. The t27b front end on the lab
(--check) reports 0 unsupported constructs for both, matching the pass the
CI run measured. frontend.t27 does not import glyph57, but a module it uses
moved on master after its seal, so all four gen hashes were stale. It is
re-sealed on the lab against this branch's tree, and --verify reports all
hashes MATCH. The coverage gate failed on the same seal.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
…e compiled binary agrees with the spec (Closes #10815)

PRESET_AUTO (#10806) was checked only in the t27c interpreter. A new
test pins a batch of five ideas whose AUTO presets are noir, neon,
trit, paper and rain. On the Railway lab each idea was built twice
from the generated Zig, once with PRESET = PRESET_AUTO and once with
the pinned preset written in, and the two frame streams have the same
md5 for 5 of 5 ideas. Idea 1 with preset 1 gives a different stream,
the control. So gen and the interpreter pick the same style.

Lab: t27c test-report 14/14 pass, 0 vacuous. Mutants killed: a pinned
preset swapped (paper -> rain) and one idea byte changed. The t27b
front end reports 0 unsupported constructs. Seal re-saved, all hashes
MATCH. The t27f skill records the recipe and the trap that cost one
run: five parallel libx264 encoders failed to open, the tee closed,
and md5 hashed truncated streams, so 3 of 5 read DIFF until md5 ran
on its own.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
#10788)

specs/analog/sar_switch.t27 (analog M4c) reached master without a t27b
row, so this PR's ratchet reported it UNLISTED. The arm64 run on
7f33764 measured it as a t27b pass, so the row says pass. Master is
merged in first so the row names a file this branch contains.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
…before writing a frame (Closes #10820)

glyph57 draws a character it lacks as '?', so an idea with a phi, a
euro sign or a brace used to ship with the wrong letter on screen.
preflight(t) now returns PF_EMPTY (no scene), PF_GLYPH (missing_glyphs
> 0; first_missing gives the byte offset), PF_LONG (reel past MAX_S =
60 s) or PF_OK, in that order, and main writes no frame unless it is
PF_OK. A real '?', a '|' cut and a space do not count as missing; a
malformed UTF-8 byte does.

Railway lab, on top of 0a5dad1: 17/17 tests pass, 0 vacuous.
Mutants: 9 of 10 killed. The survivor, MAX_S = 61, is equivalent,
since reels grow in 72-frame steps and 60..62 s refuse the same ideas.
Generated binaries: A{B} and a 25-scene idea write 0 bytes; the same
A{B} with the guard removed writes 144 whole frames (the control);
the sample idea writes 216 whole frames. t27b front end: 0 unsupported
constructs. Seal re-saved, all hashes MATCH. The t27f skill records
the check and the equivalent-mutant note.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
gHashTag and others added 2 commits October 19, 2026 10:54
4f739c1 put the sar_switch row before sar_comparator, so the
loop-tools gate failed 'ledger: sorted, one entry per spec'. This
commit also carries the merge of master, which brings move_gate's row
and the cap of 139.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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The red check here is inherited from master, not caused by this PR. Master fails loop-tools-tracked with "the cap equals reality (128, cap 129)", fails scan on a dev-home path in specs/tri/worktrees/reap.t27, and fails the native ratchet on 3 UNLISTED rows. #10889 fixes all three. This draft is stacked on #10806 and gets resynced (update-branch plus a lab re-seal) after #10806 merges; resyncing earlier would conflict again.

gHashTag and others added 4 commits October 19, 2026 14:19
Master's ledger and idea_factory seal are taken as is; the seal is
re-saved in the next commit. The branch now differs from master only by
the batch test and its SKILL.md note.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
…, 14/14 pass, MATCH (Refs #10815)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
…d (Refs #10820)

Ledger and seal taken from the batch branch, which equals master's ledger;
the seal is re-saved next.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
… pass, MATCH (Refs #10820)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@gHashTag
gHashTag marked this pull request as ready for review October 19, 2026 07:25
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PR Dashboard

Generated at: 2026-10-19 07:30:03 UTC

Summary

Status Count
Total Open PRs 50
PRs with Failing Checks 45
PRs with All Checks Green 5
READY 2
FAILING 45
PENDING 0
NO CHECKS YET 0

These columns do not partition: 2 + 45 + 0 + 0 = 47, and there are 50 open PRs. A PR is being counted twice or not at all.

Seal Status

  • ⚠️ STALE -- sha256(compiler.rs)=88b8cb73ceda != manifest seal=87e5cbd3ad94.
    The committed NMSE numbers were certified against an older compiler.rs.
    Run scripts/reseal-check.sh locally for the two-step reseal command (advisory; not a merge gate).

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Same inherited red as on #10830: the orphaned-modules check fails on master 8a4c864 too (bootstrap orphaned 1 -> 4, cli/tri 0 -> 1, cli/tri/src/renum.rs). This PR changes no Rust. Nothing pushed here.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Saved and verified on the Railway lab: test-report 0 FAIL, 17 tests, 0 vacuous; seal --verify MATCH.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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PR Dashboard

Generated at: 2026-10-19 07:46:17 UTC

Summary

Status Count
Total Open PRs 50
PRs with Failing Checks 44
PRs with All Checks Green 6
READY 2
FAILING 44
PENDING 0
NO CHECKS YET 0

These columns do not partition: 2 + 44 + 0 + 0 = 46, and there are 50 open PRs. A PR is being counted twice or not at all.

Seal Status

  • ⚠️ STALE -- sha256(compiler.rs)=88b8cb73ceda != manifest seal=87e5cbd3ad94.
    The committed NMSE numbers were certified against an older compiler.rs.
    Run scripts/reseal-check.sh locally for the two-step reseal command (advisory; not a merge gate).

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Both reds on 18f9209 are master's, tracked in #10935. t27b-native-ratchet: the same 3 UNLISTED specs master added (hslm_bwd_ptx.t27, eval_hslm.t27, zig_convert.t27). duplicate-bodies: the PTX emit bodies copied between hslm_bwd_ptx.t27 and ternary_gemm_ptx.t27; idea_factory.t27 defines none of them. Nothing pushed.

@gHashTag
gHashTag enabled auto-merge (squash) October 19, 2026 07:51
@gHashTag
gHashTag merged commit 4e6abf0 into master Oct 19, 2026
31 of 34 checks passed
gHashTag added a commit that referenced this pull request Oct 19, 2026
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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t27f: idea factory pre-flight -- refuse an idea the font cannot draw before writing a frame

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