Glint: OCX: unaudited

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ocx2-cgirelease 197a37c0d8ae (green at 2026-11-06T02:32:21Z: 713 examples, 0 failures; coverage 100.0%; 2 executables build; built with no build settings)

entry point cgi login nobody capabilities ghjorz (g: clone, o: check-out) repository /var/lib/fossil/glint.fossil dir /var/lib/fossil root /var/lib/ocx/agents-daemon remote

answer

ok: true
tool: unaudited
dry run: false
took ms: 194.7

result

checkins:
1. 017485cc6fadc3259ba5b6c42f739834148b050afeb7ebf9675cf3119fd14249
  - branch: trunk
  - user: run-f85e691a
  - comment: Add README.md and PLAN.md: layered Crystal OS on UEFI, running Zephyr/Linux code via compat shims, no BSPs

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UvM3kBC73FSx5vD2yjUVjw 2. eb805e6c97f93f2853611b60c3166efe421cb74fbf021acecd3c72ae7a3ff8da - branch: trunk - user: run-f85e691a - comment: Rework plan: hypervisor to Linux, EFI-shaped providers, Zephyr linked in, Linux on top, BQ2-only build reusing cleave

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UvM3kBC73FSx5vD2yjUVjw 3. 7167007cd95a902804dc23620f186fb1a4189d28327b98ebb18ee2ce307a765c - branch: trunk - user: run-f85e691a - comment: Plan: build QEMU and its firmware in-project with BQ2 tools only (track T)

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UvM3kBC73FSx5vD2yjUVjw 4. 970dfa3b1047ba86bc1ffa4e6ca8b6679ad78cca91a2a200c8203c0bc1341f36 - branch: trunk - user: run-f85e691a - comment: Plan: generators work from QEMU's data, U-Boot replaces EDK2, reduced QEMU for aarch64 and x86_64, ports stay in Glint

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UvM3kBC73FSx5vD2yjUVjw 5. 1908863aaaa3713a2320227ff79207a87ea40913554c01e2a20761b38d95b08f - branch: trunk - user: run-f85e691a - comment: Plan: crystal-robots-style slices in phases following the xv6 book; SVM first; Phase 1 slice list

Claim: the development plan now follows one text in build order, with every slice demonstrated and small enough to analyze. All quoted passages were checked against xv6-riscv-book fa3b46bc43 and Tambassi (2023).

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UvM3kBC73FSx5vD2yjUVjw 6. e688686961195ba551034887119b06ed9830ceca21a4096f710a27b52309a7ff - branch: trunk - user: run-f85e691a - comment: Plan: xv6 book confirmed as the development text

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UvM3kBC73FSx5vD2yjUVjw 7. 43075659a68185dbe3f44d7d76f73ba9d2a2a48a846a83a23a1aea4804148041 - branch: trunk - user: run-f85e691a - comment: Plan: cite Hailperin and Tanenbaum alongside xv6 in every phase, with a rationale across all three

Claim: every phase now carries an xv6 passage (spine), a Hailperin passage (principle) and a Tanenbaum section (survey), each with a rationale. xv6 and Hailperin quotations were checked against their sources. Tanenbaum is unavailable, so its citations are titles only, marked † and unchecked.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UvM3kBC73FSx5vD2yjUVjw 8. fa4f9566a302a43b25fb67e680d66afb03029008023e0fedb86487c6dd4e511e - branch: trunk - user: run-f85e691a - comment: Plan: Tanenbaum references give MOS4 and MOS5 sections, placement checked against Pearson tables of contents; add a MOS4 checklist for the maintainer

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UvM3kBC73FSx5vD2yjUVjw 9. 5c6399f8627cb70bbc6325f74812b9eb2902309630a0c963ebda090636b54abd - branch: trunk - user: run-f85e691a - comment: Plan: ground Tanenbaum references in MOS4, checked on the maintainer's behalf; correct three references

Claim: every MOS4 reference in PLAN.md was checked against the maintainer's licensed copy and supports its stated use. Evidence: section-by-section check recorded under 'Tanenbaum check'. Corrections: §1.3.6 is BIOS-only (§11.3.2 added for UEFI), §4.4 narrowed to §4.4.4, §4.5.1 (FAT) added. No book text is reproduced (an automated check found no 8-word overlap); the copy stays outside the repository.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UvM3kBC73FSx5vD2yjUVjw 10. 4a65f987b817fcf10c0a3305ffcdd09c0f061f1b70d63ec5b108e357e89aa2a7 - branch: trunk - user: run-f85e691a - comment: Split the plan into one document per phase, each slice explaining itself; add glossary; remove dates

Claim: each phase (1-13, Tracks T and S) now has its own document whose slices say, in prose, what they are for, what they are made of, how they connect and why they come where they do, with the virtue they serve and their xv6/Hailperin/Tanenbaum references. Fixes from a review by agents with no prior context: quoted passages for slices 1.5-1.7, the shell's command-to-protocol mapping, cleave added only when first used (2.1), a panic vector moved to Phase 2 so Phase 3's guard-page demo works, sleep locks moved to Phase 9, the hosted-vs-native benchmark made consistent, explicit hand-offs between phases, k_spinlock added to the shim list, a glossary, and an undated decision log with the superseded byte-for-byte wording removed. Evidence: all xv6, Hailperin and Tambassi quotations re-checked against their sources.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UvM3kBC73FSx5vD2yjUVjw 11. 4939d23fc58bc944b22023b2cef4a490f068e44eb3d9e41bad27bbfd4525eaf6 - branch: trunk - user: run-f85e691a - comment: Phase documents: every slice names its dependencies, its reason for its position and its virtue; fix order and x86 gaps; extend glossary

Claim: each slice in docs/phases now lets a reader with no context infer what it is for, what it is made of, how it connects (earlier slices named by number), why it comes where it does, and which OCX virtue it serves, named in a sentence. Changes in response to the second review by agents with no prior context (309 of 500 answers high-confidence, mostly missing virtue and position):

slices split by architecture where the code differs (4.3, 6.1, 6.4, 6.7, 7.1), per a clarified PLAN rule 6;
x86 port I/O handled by one device dispatcher, and a virtio-pci slice (5.5);
virtqueue origin corrected to Phase 5; 9.4 creates the backend thread it wakes; 6.9's lock objects are stand-ins until 7.5;
slices blocked on open questions (10.6, 10.7, 13.6, S.4) say so;
11.4 reuses Track T's harness; Track T gains references and Track S a rationale; the glossary grows to 88 terms. Evidence: all xv6, Hailperin and Tambassi quotations re-checked against their sources; no dates in plan text.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UvM3kBC73FSx5vD2yjUVjw 12. d1d1cd70c632cd27ff425b4c100180dae91beecc5d954e04751f4ca0e926d9ee - branch: trunk - user: run-f85e691a - comment: Make Tambassi claim numbers real links to the pages where each claim is made

Claim: the bracketed claim numbers ([5], [6], [7], [39], [40], [41]) in PLAN.md and the phase documents are now reference-style links to the article PDF at the page of each claim (journal pp. 138, 145, 146). Evidence: page of each claim checked in the maintainer's copy of the PDF.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UvM3kBC73FSx5vD2yjUVjw 13. bb5ac137523ffd30ae99dbe73531d9138e84e3e651715fc7230f0c44b8b877a5 - branch: trunk - user: run-f85e691a - comment: Close the remaining clarity gaps found by the third review

Claim: the gaps found by the third review of the phase documents, done by agents with no prior context, are closed. That review answered 518 of 525 questions with high confidence and none with low confidence, against 309 of 500 in the second round.

PLAN.md now defines the four OCX virtues in OCX's own words, with what each covers in Glint.
The citation rule allows deferred work (sleep locks, xv6 §7.8, in Phase 9).
Track T must finish (T.11) before Phase 2.
1.5 states its position; 6.4b names its virtue; 6.7b names its dependencies.
3.5 has one name; 5.1 says what the x86 exit fields carry.
12.4 says which locks it removes.
T.6's ordering and Track T's virtue attribution are corrected.
glint-run is named consistently.
The glossary grows to 101 terms.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UvM3kBC73FSx5vD2yjUVjw 14. f4d752778785b6f95067d0c9981146ded44d98169223513b342db3d32bae5ae0 - branch: trunk - user: run-f85e691a - comment: Record the maintainer's answers: device paths with Linux, opt-in unprotected DMA, plain run-mode explanation, Zepto as the small target, U-Boot findings, GC and audience, Linux build in cleave

Claim: PLAN.md and the phase documents reflect the maintainer's answers to open questions 1-8:

Linux is used for driver breadth under Glint's control, with four device paths (pass-through, bridges, return, applications); Phase 10 adds a fast return path (10.8).
Unprotected DMA is allowed only with an explicit, logged opt-in per guest; 10.6 and 13.6 are no longer blocked.
Run modes are explained in plain terms (an OS that can host guests, with native fallback).
Track S targets the BeagleConnect Zepto (MSPM0L1117: Cortex-M0+, 16 KiB RAM), with UART and I2C, a BeagleY-AI testbench, and ROM BSL updates with no second bootloader.
Glint is education-first and production worthy; a GC is an isolated option following Crystal's Boehm choice.
Cleave owns the Linux guest build for now.

Evidence:

mainline U-Boot board configs for BeaglePlay and BeagleY-AI (EFI on; console, DT, block and networking through EFI; no video; PSCI from TF-A);
mainline Zephyr supports the MSPM0L1117 with a UART driver but has no MSPM0 I2C driver (Track S writes one);
a Crystal 1.18 probe emits Cortex-M0+ Thumb code with arm-none-eabi and --mcpu cortex-m0plus.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UvM3kBC73FSx5vD2yjUVjw 15. 20f5caa01e252dd65b557cb884e42fcc89f86342c3bf9e8d44d42c0be89bc35e - branch: trunk - user: run-f85e691a - comment: Track S: build on Zephyr's existing beagleconnect_zepto board, the I2C driver in review (#117311) and bb-imager-rs

Claim: Track S uses mainline Zephyr's beagleconnect_zepto board (MSPM0L1117, UART console, flashing through OpenOCD) instead of adding a board. It pins the MSPM0 I2C driver from Zephyr pull request #117311 instead of writing a second one, and flashes with the BeagleBoard Imaging Utility (bb-imager-rs) over UART or I2C through the BSL. Evidence: the board's files and documentation in zephyr main; the open pull requests #117311 (I2C driver), #119175 (DMA) and #122743 (power management).

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UvM3kBC73FSx5vD2yjUVjw 16. cd503003c50afff9c79df391a8dfd94d16ace55e0b4dd739fa6f00fdb11a6ff3 - branch: trunk - user: run-f85e691a - comment: MPL-2.0 licence with DCO sign-off; EL2 entry and IOMMU findings; close open questions

Claim:

Glint is licensed MPL-2.0 (LICENSE is the unmodified text from mozilla.org). CONTRIBUTING.md requires a DCO 1.1 sign-off from second parties, reproduces the DCO verbatim, and states the provenance of agent-written code.
PLAN.md records EL2 entry on BeaglePlay and BeagleY-AI as documented: TF-A hands over at the highest available EL, and U-Boot's EFI launch only drops EL3 to EL2. Slice 2.2 validates it on hardware.
Neither AM62x nor AM67A has an IOMMU, but both have DDR region firewalls keyed on privilege ID, which 13.6 investigates.
The Linux-build home is back-burnered, and Glint helps land Zephyr PR #117311.

Evidence:

TF-A docs/design/firmware-design.rst; U-Boot lib/efi_loader/efi_helper.c (do_bootefi_exec) and arch/arm/cpu/armv8/Kconfig;
AM62x TRM SPRUIV7C (no SMMU/IOMMU; ISC and firewalls, section 3.8);
AM67A/J722S TRM SPRUJB3D (SMMU unsupported, pp. 242 and 1435; region firewalls, section 3.10.3).

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UvM3kBC73FSx5vD2yjUVjw 17. 8f62954b2a1426a4c85981a8ee0e9048b28d8ab4c31111ed5c9bea6904fd7a56 - branch: trunk - user: run-f85e691a - comment: Scope the shell and human-facing syntax as Crystal; add Track P (grammar and PCRE2-free matcher) and Track C (Crystal's standard library on Glint)

Claim:

Everything a person types to Glint is Crystal syntax. The shell's grammar is one table of Cleave::GlyphParser rules, checked against Crystal's own parser, and grows one rule per slice.
Track P matches those rules inside Glint with an interpreter over PCRE2 10.44 bytecode, extracted at build time by a run macro. The target links no PCRE2.
Track C brings Crystal's whole standard library, except OS-specific parts, to Glint: user processes, system calls, a glint target, the Boehm collector, fibers. It is validated by spec/std, with minimal patches to Crystal.
Slice 1.8 now uses Track P's first rule.

Evidence: PCRE2 10.44 (pinned by BQ2) source checked:

PCRE2_INFO_SIZE is 22;
the opcode numbers (OP_CHAR 29, OP_DIGIT 7, OP_BRA 135) come from pcre2_internal.h, and no OP_CHARS opcode exists;
the code follows pcre2_real_code and its name table, as in pcre2_match.c;
Cleave::GlyphParser exists in cleave and is shared by its dtc and Kconfig parsers.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UvM3kBC73FSx5vD2yjUVjw 18. 1e99ced98c8f557998a66fc6c72e7e2f45e897a8b749f752a617f54d0bc169ca - branch: trunk - user: run-f85e691a - comment: Lock in the plan: final review by agents with no prior context, and its fixes

Claim: the plan's structure is settled and stated in PLAN.md's new 'Status of the plan'. Later slices remain provisional by design (rule 9). In the final review, five agents with no prior context answered 587 of 595 questions about all 119 slices with high confidence, 8 with medium and none with low. The coherence check found no dependency-order violations.

Fixes from that review:

README now maps all four tracks and the directories the slices use.
Track T finishes before Phase 2, as PLAN.md says.
EL2 entry is reported in 2.2 and confirmed on the boards in 13.2-13.3.
The index lists 13.6, and Phase 4's row follows the document's order.
6.10 cites principle 8 (it had a stale principle 7).
2.6 and 6.1a are retagged Parsimony, matching 4.1 and 5.2.
Ordering and virtue sentences added to 1.3, P.2, S.7 and C.5.
10.1 now covers hosted-mode firmware; 10.7 names NBD.
8.7 names its second guest; 6.7b spells out the central claim.
OCX is expanded.
The glossary has 127 entries, including EL0/EL3, VHE, DMA, glyph, derivation, the Cleave types, fibers and HAT/NRST.

Evidence: all quotations re-checked against xv6, Hailperin, Tambassi, TF-A, the AM67A TRM and the OCX wiki; no dates in plan text; every principle reference checked against PLAN.md's numbering.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UvM3kBC73FSx5vD2yjUVjw 19. 34b3aa520428bbd2e3ae8db2fbfa57293d62d9d7e809669bda6edd0538131e1d - branch: trunk - user: run-f85e691a - comment: Propose a Codex run pattern for Glint slices (docs/runs/codex.md)

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UvM3kBC73FSx5vD2yjUVjw 20. 9de91c1ed2a55b4ae53075c994b3dec168e045791f7d5ac7eadb868d62cca8a8 - branch: trunk - user: run-f85e691a - comment: Workflow for Codex-written, virtue-reviewed slices; the first three tasks (1.1, T.1, P.1)

Claim:

docs/WORKFLOW.md says how slices are handed to Codex runs, on branches slice/N.M from tasks in docs/tasks/, and how the reviewer judges each check-in against the four virtues: merge, annotate and merge, or resubmit with ocx2 audit verdicts.
Tasks 1.1, T.1 and P.1 are ready to send.
docs/runs/codex.md proposes Glint's Codex run pattern.
Cleave now arrives as a dependency with P.1, its first user, as 1.1 and 2.1 now say.

Evidence: ocx2 create dry runs against the pattern pass once a node and process.user are named. The reviewer's login lacks admin and send-runs, so no real run was started.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UvM3kBC73FSx5vD2yjUVjw 21. 337816820e7e563452fa8a38e62b0ccb434ff2f6c495a6ca9cf664be0d8ee540 - branch: trunk - user: run-4965e946 - comment: Slice 1.1: project skeleton (shard, glint-build --version, spec helper)

Claim: Glint is a Crystal shard with no dependencies. Its build driver, glint-build, answers --version and prints a one-line usage message (exit status 2) for anything else. A spec helper and a self-contained spec compile and run the driver, so later slices have something to build and test against.

Passage: xv6 §1: "The trick in resolving this tension is to design interfaces that rely on a few mechanisms that can be combined to provide much generality." Hailperin §1.2; Tanenbaum MOS4/5 §1.5, §1.6, §12.2.1.

Demonstration (Crystal 1.18.2, clean checkout): $ shards build && bin/glint-build --version I: Dependencies are satisfied I: Building: glint-build glint-build 0.1.0 $ bin/glint-build foo; echo $? Usage: glint-build --version 2 $ crystal spec . Finished in 1.2 seconds 1 examples, 0 failures, 0 errors, 0 pending

Size: 17 lines added, 0 removed outside spec/ (shard.yml 9, tools/glint_build.cr 8).

Review: Codex wrote the four files from docs/tasks/1.1.md. The reviewer changed the spec to compile tools/glint_build.cr into a temporary file rather than run bin/glint-build, so `crystal spec` passes on a clean checkout without a prior `shards build` (Demonstrability). Verdict: annotate and merge.

Co-Authored-By: Codex <noreply@openai.com> Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT

22. **ea1dde237fc152d6fbc8b98b5e10279c7f83f201ccbe7c74456ca0d6ccd1e967**
    - <span class="ocx-k">branch</span>: trunk
    - <span class="ocx-k">user</span>: run-4965e946
    - <span class="ocx-k">comment</span>: Slice P.1: the shell grammar as data (lexer + call rule on Cleave::GlyphParser)

Claim: The shell's first grammar rule exists as Crystal data in Cleave::GlyphParser's form. A lexer gives each lexical kind one reserved glyph: 𝑖 for an identifier, ․ for a dot, 𝑠 for a string, 𝑛 for an integer, ‚ for a comma and ⏎ for end of line. One rule, :call, reduces a call with literal arguments to a single statement glyph ◆. Specs check each example's derivation, one line per pass. They also check two rejections: one from the lexer (ls () and one from the rule (ls ,). Cleave is a pinned shard dependency, used unchanged.

Passage: xv6 §1.1: "The shell is an ordinary program that reads commands from the user and executes them." Track P also cites cleave src/cleave/glyph_parser.cr and crystal-robots docs/PARSER.md.

Demonstration (Crystal 1.18.2, clean checkout): $ shards install I: Resolving dependencies I: Fetching https://ollama.openbeagle.org/cleave I: Installing cleave (0.1.0 at d5d84f6) $ crystal spec ....... Finished in 1.32 seconds 7 examples, 0 failures, 0 errors, 0 pending Derivation of `i2c.read 0x48, 0`: lex: i2c→𝑖 .→․ read→𝑖 0x48→𝑛 ,→‚ 0→𝑛 EOL→⏎ 𝑖․𝑖𝑛‚𝑛⏎ call: ◆

Size: 75 lines added, 0 removed outside spec/ (src/glint/shell/grammar.cr 63, shard.yml 5, shard.lock 7).

Review: Codex wrote the grammar, the spec and the cleave pin (d5d84f62…, fossil resolver) from docs/tasks/P.1.md, without changing cleave. The reviewer ran crystal tool format on the spec and added a rule-level rejection (ls , gives "syntax error: cannot reduce 𝑖‚⏎"), because the task's ls ( is caught by the lexer and never reaches the rule (Demonstrability). The host lexer uses Crystal's Regex. Glint's own PCRE2-free matcher arrives in later Track P slices. Verdict: annotate and merge.

Co-Authored-By: Codex <noreply@openai.com> Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT

23. **e145887d41954df40a4e1258c6f94f2a0b9760d0f818de11d764bb849dc7f255**
    - <span class="ocx-k">branch</span>: trunk
    - <span class="ocx-k">user</span>: run-4965e946
    - <span class="ocx-k">comment</span>: Slice T.1: inventory of the reduced QEMU 11.1.2 builds (virt and q35, TCG+KVM, headless)

Claim: For QEMU 11.1.2, qemu/inventory.yml lists every C source and every generated file needed to build qemu-system-aarch64 -M virt and qemu-system-x86_64 -M q35. Each build has TCG and KVM and no graphical interface, under one concrete build profile written down in qemu/PIN.md. The profile is a native Linux host per target (KVM requires it), --without-default-features --without-default-devices, devices from aarch64 minimal.mak (ARM_VIRT) and an assumed q35.mak (CONFIG_Q35=y). Each generated file names its generator and the data files it reads. Every Meson condition was evaluated against that profile by reading meson.build, Kconfig and configs/devices files. No Python, Meson or Ninja was run.

Passage: None from the text: Track T cites QEMU's own specifications (docs/devel/*.rst).

Demonstration: $ sha256sum -c (731b5681e4bb18be313231579b8efd0296c5b015fa36dc533874b639ba838016, the digest published in FreeBSD ports' distinfo) qemu-11.1.2.tar.xz: OK $ QEMU_SRC=/path/to/qemu-11.1.2 crystal spec spec/qemu_inventory_spec.cr .. 2 examples, 0 failures, 0 errors, 0 pending $ crystal spec (QEMU_SRC unset: the inventory spec is pending, with its message) 8 examples, 0 failures, 0 errors, 1 pending Counts:

qemu-system-aarch64 (virt): 744 C sources and 758 generated files: qapi-gen 423, tracetool 292, keymap-gen 16, decodetree 15, hxtool 3, meson-configure 3, and one each from minikconf, feature_to_c, block-coroutine-wrapper, module_block, make-config-poison and qemu-version.sh.
qemu-system-x86_64 (q35): 733 C sources and 743 generated files, the same without decodetree. Uncertain: source_selection for both (the inotify_init1 and ucontext compiler probes are assumed); config-host.h for both (host probes); x86_64-softmmu-config-devices.mak and .h (the q35.mak override is not in the tarball).

Size: qemu/inventory.yml 7563 lines; spec/qemu_inventory_spec.cr 77 lines (qemu/PIN.md 65).

Review:

First attempt resubmitted: its lists were the union of every Meson alternative (kvm-all.c with kvm-stub.c, tap-win32/solaris/bsd, GTK/SDL/Spice UIs, Xen, Rutabaga).
Resubmission: one profile, every condition evaluated, and spec checks that reject a file listed with its stub and excluded host or GUI sources.
Codex correctly objected to two of the reviewer's rules: crypto/pbkdf.c and pbkdf-stub.c are both compiled, and ui/spice-module.c is compiled unconditionally. The reviewer added spice-module.c to both lists, narrowed the denylist to exempt it, and recorded why in PIN.md.
The spec checks paths, metadata and exclusions. Only compiling the two profiles proves completeness, which a later Track T slice does.
The tarball digest is second-party (FreeBSD ports); QEMU's GPG signature was not checked (no gpg here). Verdict: annotate and merge.

Co-Authored-By: Codex <noreply@openai.com> Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT

24. **5b9f159f8f961db5cd3577d1b077f1058afc1e62aef0975232934cd9594aeed9**
    - <span class="ocx-k">branch</span>: trunk
    - <span class="ocx-k">user</span>: run-4965e946
    - <span class="ocx-k">comment</span>: Tasks for the next slices (1.2, T.2, P.2), docs/TUTORIAL.md for the merged ones, and the interim workflow while Codex runs cannot be sent

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT 25. 16482866767d1ca890c1ab4d9479532ad1809417e11042a1e5b0591e89171d53 - branch: trunk - user: run-4965e946 - comment: Slice 1.2: first EFI images (BOOTAA64.EFI and BOOTX64.EFI from a Crystal efi_main)

Claim: `glint-build aarch64|x86_64|all` compiles boot/efi_main.cr, whose efi_main returns EFI_SUCCESS, with --prelude=empty, no garbage collector and no C library. It links build/<arch>/EFI/BOOT/BOOTAA64.EFI and BOOTX64.EFI as PE32+ EFI applications (subsystem 10) with a .reloc section and no imports. prelude/efi.cr holds only the primitives efi_main uses. A spec reads both PE headers.

Passage: xv6 §1: "An operating system provides services to user programs through an interface". Hailperin §1.2; Tanenbaum MOS4/5 §1.5, §1.6, §12.2.1.

Demonstration (Crystal 1.18.2, clang/lld 21, clean checkout): $ shards build && bin/glint-build all build/aarch64/EFI/BOOT/BOOTAA64.EFI (3584 bytes) build/x86_64/EFI/BOOT/BOOTX64.EFI (3584 bytes) $ llvm-objdump -h -p build/*/EFI/BOOT/*.EFI (both) .reloc 0000000c; Magic 020b (PE32+); Subsystem 0000000a (EFI application); no DLL imports $ crystal spec 10 examples, 0 failures, 0 errors, 1 pending (pending: QEMU inventory without QEMU_SRC)

Size: about 70 lines added, 2 removed outside spec/ (tools/glint_build.cr 8 to 45 lines, boot/efi_main.cr 14, prelude/efi.cr 19).

Review: Codex wrote the prelude, efi_main, the build driver (following BQ2 EfiAppBuilder's COFF cross-compile and lld-link method, not depending on it) and the PE spec. It got a .reloc section from a C file, boot/reloc.c, built by clang. The reviewer replaced that with an inline-asm data word in efi_main.cr, which gives the same base relocation. This keeps C out of the tree until slice 1.4 introduces the C seam, and drops the clang step (Loose Coupling, Parsimony). The reviewer also discarded crystal's printed MSVC link line ("cl.exe ... msvcrt.lib"), which suggested a link that never happens (Clarity), and ran the formatter. The images are checked but not booted; booting waits on Track T. Verdict: annotate and merge.

Co-Authored-By: Codex <noreply@openai.com> Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT

26. **49071ac7ac2b592ce035c76da543f0deaaaaed74abc5abdbec66f63d79137d40**
    - <span class="ocx-k">branch</span>: trunk
    - <span class="ocx-k">user</span>: run-4965e946
    - <span class="ocx-k">comment</span>: Slice P.2: Crystal is the oracle for syntax

Claim: Every example line the shell grammar accepts is parsed by Crystal's own parser (Crystal::Parser, from the compiler's syntax module, used in specs only). Each must be a Crystal::Call with the receiver, method name and literal arguments that the glyph derivation produced. 0x48 is checked by value in base 16, because Crystal normalizes it to 72. The examples are now written once, in Glint::Shell::Grammar::EXAMPLES, and both specs read them. `ls (`, which the shell rejects, is also rejected by Crystal ("unexpected token: EOF").

Passage: xv6 §1.1: "The shell is an ordinary program that reads commands from the user and executes them." Track P cites Crystal's Crystal::Parser and crystal-robots docs/PARSER.md.

Demonstration (Crystal 1.18.2, clean checkout): $ shards install && crystal spec 15 examples, 0 failures, 0 errors, 1 pending (pending: QEMU inventory without QEMU_SRC) Oracle examples: ls; cat "hello.txt"; echo "booted"; i2c.read 0x48, 0; and the rejected ls (.

Size: 7 lines added, 0 removed outside spec/ (the EXAMPLES table in src/glint/shell/grammar.cr).

Review: Codex wrote the shared table and the oracle spec. The reviewer re-ran the suite from clean on top of 1.2 and found nothing to change. Verdict: merge.

Co-Authored-By: Codex <noreply@openai.com> Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT

27. **c445195a1d70ebb2cd5e3d0a2232791e793527785d89a1dddcfa5e00346744b0**
    - <span class="ocx-k">branch</span>: trunk
    - <span class="ocx-k">user</span>: run-4965e946
    - <span class="ocx-k">comment</span>: TUTORIAL: slices 1.2 and P.2

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT 28. 53ab5ab5925f56322b133b2b63ea2fa6b1010e715b79d032f9681ebe45d14313 - branch: trunk - user: run-4965e946 - comment: Task 1.3: a console through a fake firmware

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT 29. e7cf0a8b0ba90438b386200980e1b19e69a77a4ad85db182ce2c1a9bfb23803c - branch: trunk - user: run-4965e946 - comment: TUTORIAL: link each check-in to its diff, as the maintainer asked

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT 30. 2bf938c834b0313ce48736711f2894ecf5729a2471950777172211978925b482 - branch: trunk - user: run-4965e946 - comment: Slice 1.3: a console through a fake firmware

Claim: efi_main prints "Hello from Glint\r\n" through the firmware's ConOut (EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString, UCS-2) and returns EFI_SUCCESS. boot/efi.cr declares only the parts of the system table Glint uses, as UEFI 2.10 §4.2.1, §4.3.1, §12.4.1 and §12.4.3 lay them out. It also provides efi_string, a macro that builds the CHAR16 string at compile time. The same boot/ source is linked into both EFI images and into the specs. There, spec/support/fake_efi.cr, a system table in ordinary Crystal, records the text. This is the first provider behind the platform interface.

Passage: xv6 §1: "When a process needs to invoke a kernel service, it invokes a system call, one of the calls in the operating system's interface." Hailperin §1.2; Tanenbaum MOS4/5 §1.5, §1.6, §12.2.1.

Demonstration (Crystal 1.18.2, clang/lld 21, clean checkout): $ shards build && bin/glint-build all build/aarch64/EFI/BOOT/BOOTAA64.EFI (4096 bytes) build/x86_64/EFI/BOOT/BOOTX64.EFI (4608 bytes) $ llvm-objdump -p build/*/EFI/BOOT/*.EFI (both) Entry 1 0000000000000000 00000000 Import Directory (no imports) Entry 5 0000000000005000 0000000c Base Relocation Directory [.reloc] $ crystal spec 17 examples, 0 failures, 0 errors, 1 pending (pending: QEMU inventory without QEMU_SRC) The fake's captured text is exactly "Hello from Glint\r\n". Spec checks: sizeof(TableHeader) = 24, ConOut at offset 64, OutputString at offset 8.

Size: about 60 lines added, 1 removed outside spec/ (boot/efi.cr 34, boot/efi_main.cr +4, prelude/efi.cr +20).

Review: Codex wrote the declarations, efi_main's call, the prelude additions (UInt16, Pointer#[]=, a StaticArray literal and to_unsafe), the fake table and the spec. The reviewer made two changes. The greeting, written as 19 raw code points, is now built with the efi_string macro from the literal (Clarity). The fake now appends what it is given rather than keeping only the last call, so later slices that print more than once are recorded faithfully (Demonstrability). The images are not yet booted; that waits on Track T. Verdict: annotate and merge.

Co-Authored-By: Codex <noreply@openai.com> Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT

31. **c841d726c1e1fa2496d31c543325ce9b1f7b35be0cac6ef72a52cdfbf30a1ccf**
    - <span class="ocx-k">branch</span>: trunk
    - <span class="ocx-k">user</span>: run-4965e946
    - <span class="ocx-k">comment</span>: TUTORIAL: slice 1.3

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT 32. c25da4a484c148fc93b9721eb8a18ad91e69eb92d6365a56ad5825b73a4823d7 - branch: trunk - user: run-4965e946 - comment: Task 1.4: calling C and being called back

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT 33. 77437d6bd64a215bd89124cbb410be4bcf6941df298af9c156a890f03deb2dce - branch: trunk - user: run-4965e946 - comment: Task P.3: reading PCRE2's bytecode, with PCRE2 pinned strictly to 10.44 (maintainer's decision). ALSO CONTAINS, BY MISTAKE: Codex's unreviewed slice 1.4 files (c/hello.c, boot/c.cr, boot/efi_main.cr, prelude/efi.cr, spec/c_interop_spec.cr, spec/console_spec.cr, tools/glint_build.cr), swept in because the commit named no files while Codex was working in the checkout. Their review and slice comment are in the next check-in. 34. f93fcb1cf1c4bc91e84d929820d5cf1ba95c6d0987c3a582cef3cd84a9738e32 - branch: trunk - user: run-4965e946 - comment: Slice 1.4: calling C and being called back (review of the files merged in 77437d6b)

Note: Codex's 1.4 files reached trunk unreviewed in 77437d6b, whose commit was meant to add only docs/tasks/P.3.md. The reviewer ran `fossil commit` without naming files while Codex was writing in the same checkout. This check-in is the review of those files and carries the slice's comment.

Claim: Crystal calls C and C calls back into Crystal, in both EFI images and in the specs. c/hello.c (freestanding, no C library) calls the exported Crystal fun glint_print, which converts its ASCII text to CHAR16 and prints through ConOut. boot/c.cr declares the C side in a lib block. glint-build compiles c/*.c with clang for each target and links the objects into the image. The specs check four things:

the captured console text;
struct layout (u8, u16, u32, u64 and a pointer at offsets 0, 2, 4, 8 and 16, size 24) and a variadic sum, both agreeing between C and Crystal;
from the x86_64 objects' disassembly, the Microsoft x64 convention (first argument in rcx, at least 32 bytes of shadow space, no rdi) in both directions.

Passage: xv6 §1.5 "Real world": the Unix interface "persists today in systems like BSD, Linux, and macOS". Hailperin §1.2; Tanenbaum MOS4/5 §1.5, §1.6, §12.2.1.

Demonstration (Crystal 1.18.2, clang/lld 21, clean checkout): $ shards build && bin/glint-build all build/aarch64/EFI/BOOT/BOOTAA64.EFI (5120 bytes) build/x86_64/EFI/BOOT/BOOTX64.EFI (5120 bytes) $ llvm-objdump -p build/*/EFI/BOOT/*.EFI (both) Entry 1 0000000000000000 00000000 Import Directory (no imports) $ crystal spec 19 examples, 0 failures, 0 errors, 1 pending (pending: QEMU inventory without QEMU_SRC) Captured: "Hello from Glint\r\nHello from C via Glint\r\n"

Size: 95 lines added, 1 removed outside spec/ (c/hello.c 36, boot/c.cr 16, boot/efi_main.cr +29, prelude/efi.cr +7, tools/glint_build.cr +7/-1).

Review: Codex wrote all of it. The reviewer loosened the calling-convention spec. It had matched exact stack offsets (subq $0x108, movq %rcx, 0x60(%rsp)) that change with buffer sizes and compiler versions; it now checks what tells Microsoft x64 from System V (rcx rather than rdi, shadow space of at least 0x20). Limits: layout and variadics are exercised on the host's System V ABI; under the Microsoft ABI they are only compiled and linked until the images boot (Track T). glint_print truncates text at 63 characters, which is enough for this slice. Verdict: annotate and merge.

Co-Authored-By: Codex <noreply@openai.com> Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT

35. **1785f0f9c6d9807be27fa5caf506006a67049fa0a68110ef1e8a902a9d0e4b14**
    - <span class="ocx-k">branch</span>: trunk
    - <span class="ocx-k">user</span>: run-4965e946
    - <span class="ocx-k">comment</span>: TUTORIAL: slice 1.4

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT 36. f86057ac892c9eea58962652bc6a71bf3f8a11dc4d21f5698d8d889f069cc67b - branch: trunk - user: run-4965e946 - comment: Task 1.5: finding services by GUID

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT 37. d25c6f5328ddd4f4b81a8f0fbac23a52c3c7739ef09badc6e372e3a5b56b13b3 - branch: trunk - user: run-4965e946 - comment: Slice 1.5: finding services by GUID

Claim: UEFI services are found by GUID through one typed mechanism. boot/protocol.cr's Protocol.locate(T, table) takes a protocol type, which states its GUID once next to its struct (EFI::TextOutput.guid). It calls BootServices.LocateProtocol and returns a Protocol::Result(T): a T* plus status and found?, so no call site casts. efi_main and glint_print now find ConOut by EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL_GUID instead of the system table's fixed field. efi_main returns EFI_NOT_FOUND (0x800000000000000E) when there is no console. boot/efi.cr adds EFI_GUID and EFI_BOOT_SERVICES up to LocateProtocol, with the unused entries kept as untyped pointers so the offsets stay right. The citations are UEFI 2.10 §4.4.1, §7.3 and §12.4.3. The fake gains boot services whose LocateProtocol answers only the console GUID.

Passage: xv6 §1.2: "A file descriptor is a small integer representing a kernel-managed object that a process may read from or write to." Hailperin §1.2; Tanenbaum MOS4/5 §1.5, §1.6, §12.2.1.

Demonstration (Crystal 1.18.2, clang/lld 21, clean checkout): $ shards build && bin/glint-build all build/aarch64/EFI/BOOT/BOOTAA64.EFI (7168 bytes) build/x86_64/EFI/BOOT/BOOTX64.EFI (7680 bytes) $ llvm-objdump -p build/*/EFI/BOOT/*.EFI (both) Entry 1 0000000000000000 00000000 Import Directory (no imports) $ crystal spec 22 examples, 0 failures, 0 errors, 1 pending (pending: QEMU inventory without QEMU_SRC) New checks:

the console is found by GUID while the table's ConOut field is null;
an absent GUID gives EFI_NOT_FOUND and a null pointer;
a fake with no console makes efi_main return EFI_NOT_FOUND and print nothing;
sizeof(EFI_GUID) = 16, BootServices at offset 96 and LocateProtocol at offset 320 (0x140), as in the specification.

Size: 108 lines added, 4 removed outside spec/ (boot/efi.cr +53, boot/protocol.cr 45, boot/efi_main.cr +10/-4).

Review: Codex wrote all of it. The reviewer checked the GUID (387477c2-69c7-11d2-8e39-00a0c969723b), the LocateProtocol offset and the BootServices order against UEFI 2.10, and re-ran everything from clean in the checkout. Limit: Result(T)#pointer can be read without first asking found?, so "must check" is a convention, not enforced; a block-style accessor can replace it if a later slice misuses it. Verdict: merge.

Co-Authored-By: Codex <noreply@openai.com> Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT

38. **ec9a3f5f08810f736bdeffb025c4da85f95013d1cc438d729aa8f0ef779a4e5c**
    - <span class="ocx-k">branch</span>: trunk
    - <span class="ocx-k">user</span>: run-4965e946
    - <span class="ocx-k">comment</span>: TUTORIAL: slice 1.5

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT 39. c94922e52577552029ad20d80b1f211766e43be532f22cc705c2f35a4fe0f481 - branch: trunk - user: run-4965e946 - comment: Task 1.6: reading files

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT 40. 2305996565f6654e34ea94699ab97b25e28f34918a1e8b4c4cf84ddc7a26ddd5 - branch: trunk - user: run-4965e946 - comment: Slice 1.6: reading files

Claim: Glint opens, reads and closes files on the EFI system partition through EFI_SIMPLE_FILE_SYSTEM_PROTOCOL (OpenVolume) and EFI_FILE_PROTOCOL (Open, Close, Read), found with 1.5's Protocol.locate and no new mechanism. fs/efi_file.cr provides EfiFile.open(path, table), read(file, buffer, size) and close(file), returning UEFI status codes. Its paths are CHAR16 with "\" separators. In the specs, the fake's LocateProtocol also answers the simple-file-system GUID and serves read-only files from spec/fixtures/esp/, a host directory standing in for the partition.

Passage: xv6 §1.4: "The xv6 file system provides data files, which contain uninterpreted byte arrays, and directories, which contain named references to data files and other directories." Hailperin §8.3.1 "File Descriptors"; Tanenbaum MOS4/5 §1.5, §1.6. UEFI 2.10 §13.4, §13.5.

Demonstration (Crystal 1.18.2, clang/lld 21, clean checkout): $ shards build && bin/glint-build all build/aarch64/EFI/BOOT/BOOTAA64.EFI (7168 bytes) build/x86_64/EFI/BOOT/BOOTX64.EFI (7680 bytes) (unchanged: efi_main does not read files yet) $ llvm-objdump -p build/*/EFI/BOOT/*.EFI (both) Entry 1 0000000000000000 00000000 Import Directory (no imports) $ crystal spec 25 examples, 0 failures, 0 errors, 1 pending (pending: QEMU inventory without QEMU_SRC) New checks:

spec/fixtures/esp/hello.txt is read byte for byte through a 5-byte buffer, which exercises Read's in/out size;
\missing.txt gives EFI_NOT_FOUND and a null file;
OpenVolume, Open, Close and Read sit at offsets 8, 8, 16 and 32, as in the specification.

Size: 73 lines added, 13 removed outside spec/ (fs/efi_file.cr 31, boot/efi.cr +42, boot/protocol.cr -13).

Review: Codex wrote the declarations, EfiFile, the fake's file system and the specs. The reviewer removed an unused EFI::File.guid (the file protocol is reached through OpenVolume and Open, never by GUID). The reviewer also moved the console's GUID from boot/protocol.cr into boot/efi.cr beside the file system's, so every protocol GUID is stated once, in one file (Clarity, Parsimony). Verdict: annotate and merge.

Co-Authored-By: Codex <noreply@openai.com> Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT

41. **ae7b1b0807d5a4da0cc415d5650834979712095e4824fbe8094958cda5e3bf97**
    - <span class="ocx-k">branch</span>: trunk
    - <span class="ocx-k">user</span>: run-4965e946
    - <span class="ocx-k">comment</span>: TUTORIAL: slice 1.6; task 1.7: reading the keyboard

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT 42. fd888a6d2d2ef9d199246cfd410441163ff858d91e6219ab5d090ed5a664c648 - branch: trunk - user: run-4965e946 - comment: Slice P.3: reading PCRE2's bytecode (PCRE2 pinned strictly to 10.44)

Claim: At build time, Glint compiles the shell's :call rule with PCRE2 10.44 built from pinned source, and emits the rule's bytecode as a Crystal constant. The bytecode is located the way pcre2_match.c does it: after sizeof(pcre2_real_code) and name_count × name_entry_size of name table. The host's PCRE2 (10.47 on this node) is never used; the extractor stops unless pcre2_config reports 10.44, as the maintainer decided. The pieces:

tools/pcre2_build.cr fetches the tarball once into a cache, checks its SHA-256, and builds a static 8-bit libpcre2-8.a with clang directly, following NON-AUTOTOOLS-BUILD (no configure, cmake or make).
tools/pcre2_extract.cr reads opcode names from the enum in the pinned pcre2_internal.h. tools/pcre2_layout.c, compiled against that header, supplies the header size, the name-table size and each opcode's length (OP_LENGTHS).
Any opcode outside SUPPORTED (src/glint/shell/bytecode_opcodes.cr, one list) stops the build with its name.
src/glint/shell/bytecode.cr runs the extractor through a run macro on Grammar::CALL_PATTERN.

Passage: Track P's references: PCRE2 10.44 src/pcre2_internal.h (opcodes), src/pcre2_intmodedep.h (pcre2_real_code), src/pcre2_match.c (locating the code), NON-AUTOTOOLS-BUILD, pcre2api (PCRE2_INFO_SIZE is 22); Crystal's run macro.

Demonstration (Crystal 1.18.2, clang 21, clean checkout; GLINT_PCRE2_DIR outside the tree): $ crystal spec 29 examples, 0 failures, 0 errors, 1 pending (pending: QEMU inventory without QEMU_SRC) :call bytecode (82 bytes), as opcode names: OP_BRA OP_SOD OP_CHAR OP_BRAZERO OP_BRA OP_CHAR OP_CHAR OP_KET OP_BRAZERO OP_BRA OP_XCLASS OP_BRAZERO OP_BRA OP_CHAR OP_XCLASS OP_KETRMAX OP_KET OP_CHAR OP_EOD OP_KET OP_END Spec checks:

the extractor reports 10.44 and refuses 10.47;
the constant spans exactly CODE_SIZE − header − name table;
every opcode is in SUPPORTED;
\A\d\z stops with "unsupported PCRE2 opcode OP_DIGIT". The tarball's SHA-256, 86b9cb0aa3bcb7994faa88018292bc704cdbb708e785f7c74352ff6ea7d3175b, equals the digest BQ2's src/sysroot_builder.cr pins for pcre2 10.44.

Size: 193 lines added, 1 removed outside spec/ (tools 152 including the 22-line C helper, src 24, pcre2/PIN.md 13, grammar.cr +4/-1).

Review: Codex wrote the build, the extractor, the C layout helper, the emitter and the specs.

The reviewer reversed one dependency. Codex had moved the :call pattern into bytecode.cr and made grammar.cr require it, so loading the grammar (P.1's and P.2's specs, the host parser) triggered a PCRE2 download and build. Now grammar.cr holds the pattern as a literal constant and bytecode.cr requires grammar.cr and reads the constant in its macro (Loose Coupling).
PIN.md had only an observed checksum. The reviewer compared it with BQ2's pinned digest for the same tarball and recorded that; the upstream .sig is not verified (no gpg).
The C helper is a host build tool that reads PCRE2's own header; it is not linked into Glint. Verdict: annotate and merge.

Co-Authored-By: Codex <noreply@openai.com> Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT

43. **2e896d1928fcca96a4157e476ba7364e336938491d10d6dd5b431529a70b970d**
    - <span class="ocx-k">branch</span>: trunk
    - <span class="ocx-k">user</span>: run-4965e946
    - <span class="ocx-k">comment</span>: TUTORIAL: slice P.3

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT 44. 9fba492243e1b089deafe197204ea54b9bd160790e72515182683ca383efd93c - branch: trunk - user: run-4965e946 - comment: Slice 1.7: reading the keyboard

Claim: Glint reads console input through EFI_SIMPLE_TEXT_INPUT_PROTOCOL (ConIn), found by its GUID (387477c1-69c7-11d2-8e39-00a0c969723b) with Protocol.locate, the same way as ConOut. boot/console.cr's Console.read_line polls ReadKeyStroke, treating EFI_NOT_READY as no key yet; a comment says WaitForKey can replace polling later. It echoes printable keys through ConOut, erases on Backspace (0x08, echoed as "\b \b"), stops at Enter (0x0D), and fills a caller-provided CHAR16 buffer. Keys past its end are ignored, never overflowed. The fake is fed scripted keystrokes, with one EFI_NOT_READY between keys.

Passage: xv6 §1.2: "By convention, a process reads from file descriptor 0 (standard input), writes output to file descriptor 1 (standard output), and writes error messages to file descriptor 2 (standard error)." ConIn and ConOut are Glint's 0 and 1. Hailperin §1.2; Tanenbaum MOS4/5 §1.5, §1.6. UEFI 2.10 §12.3.

Demonstration (Crystal 1.18.2, clang/lld 21, clean checkout): $ shards build && bin/glint-build all build/aarch64/EFI/BOOT/BOOTAA64.EFI (7168 bytes) build/x86_64/EFI/BOOT/BOOTX64.EFI (7680 bytes) (unchanged: efi_main does not read input yet) $ llvm-objdump -p build/*/EFI/BOOT/*.EFI (both) Entry 1 0000000000000000 00000000 Import Directory (no imports) $ GLINT_PCRE2_DIR=... crystal spec 34 examples, 0 failures, 0 errors, 1 pending (pending: QEMU inventory without QEMU_SRC) New checks:

scripted "ls\r" returns "ls", echoes "ls", and polls through two NOT_READYs;
"lxs\b\bs\r" returns "ls" and echoes "lxs\b \b\b \bs";
"long\r" into a 2-cell buffer returns "lo";
a script without Enter stops instead of hanging;
EFI_INPUT_KEY is 4 bytes, with ReadKeyStroke at offset 8 and WaitForKey at offset 16.

Size: 65 lines added, 1 removed outside spec/ (boot/console.cr 39, boot/efi.cr +26/-1).

Review: Codex wrote the declarations, read_line, the fake's keyboard and the specs. The reviewer changed the fake to return EFI_DEVICE_ERROR when a script runs out, instead of EFI_NOT_READY forever, so a faulty test fails rather than hanging the suite, and added a spec for it (Demonstrability). Verdict: annotate and merge.

Co-Authored-By: Codex <noreply@openai.com> Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT

45. **84e4280e91f41a0e0092049c3ab0da3fb557a83440c3303a125e92d7bf6d90cf**
    - <span class="ocx-k">branch</span>: trunk
    - <span class="ocx-k">user</span>: run-4965e946
    - <span class="ocx-k">comment</span>: TUTORIAL: slice 1.7

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT 46. 4d930a7afced73a19d1269609f6768a0e464612efe68d7688368243e7def1e24 - branch: trunk - user: run-4965e946 - comment: Task P.4: a small matcher

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT 47. 7888c9e5e299332ef901386ae108b34c24f620aa5d61df96639cf4f47950bca1 - branch: trunk - user: run-4965e946 - comment: Slice P.4: a small matcher

Claim: One Crystal interpreter, src/glint/shell/matcher.cr, matches the :call rule over P.3's bytecode with no allocation. It handles exactly the opcodes in SUPPORTED: OP_BRA, OP_KET, OP_KETRMAX, OP_BRAZERO, OP_SOD, OP_EOD, OP_CHAR (UTF-8) and OP_XCLASS (its bitmap plus XCL_SINGLE items; any other item kind returns INVALID_XCLASS). Backtracking uses a 64-entry StaticArray stack, and running out of it returns STACK_LIMIT instead of crashing. Opcode and XCL_* numbers come from the pinned pcre2_internal.h through a run macro (matcher_opcodes.cr), never written by hand. P.3's extractor now also emits the bytecode as a StaticArray literal, and prelude/efi.cr grows just enough for the matcher to compile under --prelude=empty.

Passage: Track P's references: PCRE2 10.44 src/pcre2_internal.h (opcode layouts, XCL_* items) and src/pcre2_match.c (what each opcode means); crystal-robots docs/PARSER.md.

Demonstration (Crystal 1.18.2, clean checkout; GLINT_PCRE2_DIR outside the tree): $ crystal spec matcher differential cases: 6004; seed: 20548 38 examples, 0 failures, 0 errors, 1 pending (pending: QEMU inventory without QEMU_SRC) Spec checks:

the matcher agrees with PCRE2 (Regex on Grammar::CALL_PATTERN) on the 4 examples' glyph strings and on 6000 seeded strings of up to 14 symbols, over the rule's glyphs plus x, 0 and é;
an XCL_PROP item gives INVALID_XCLASS;
65 nested optional groups give STACK_LIMIT;
a file using the matcher cross-compiles with --prelude=empty for x86_64 and aarch64 EFI targets.

Size: about 200 lines added outside spec/ (matcher.cr 158, prelude/efi.cr +37, tools: pcre2_header.cr 21 and pcre2_opcode_emit.cr 19 new, pcre2_extract.cr -4).

Review: Codex wrote the matcher, the prelude additions, the StaticArray emission and the specs. The reviewer removed two duplications (Parsimony, each thing once):

Codex's opcode emitter re-parsed the opcode enum and hard-coded its own copy of the supported list. Now tools/pcre2_header.cr is the one reader of the pinned header, used by both the extractor and the emitter, and the emitter takes SUPPORTED from bytecode_opcodes.cr.
The emitter now also builds PCRE2 (cached) if the header is missing. Limits:
LINK_SIZE 2 (two-byte links) is assumed, as in PCRE2's config.h.generic that P.3 builds with.
Under --prelude=empty an integer overflow calls __crystal_raise_overflow, which spins forever for now.
The cross-compile fixture shows the matcher builds without the standard library, but the real :call constant still sits behind the stdlib-using grammar; slice 1.8, which runs the rule in the images, must move the pattern and its bytecode into stdlib-free files. Verdict: annotate and merge.

Co-Authored-By: Codex <noreply@openai.com> Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT

48. **e08cb3ab133eeb8f740afe92bb1b5e1d7b40759d12bc66196c13f20e2e062706**
    - <span class="ocx-k">branch</span>: trunk
    - <span class="ocx-k">user</span>: run-4965e946
    - <span class="ocx-k">comment</span>: TUTORIAL: slice P.4

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT 49. 06132418477036ad84d29aed7f9a54b44f837e607a14c86fe04c9d16d385a7f8 - branch: trunk - user: run-4965e946 - comment: Task 1.8: the shell

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT 50. 8255e69bba7efbbdb374b84e42f76adb4d0ed6bf2ef2edb2a0234cebbff15602 - branch: trunk - user: run-4965e946 - comment: Slice T.2: hxtool and feature_to_c in Crystal

Claim: Glint generates QEMU 11.1.2's qemu-options.def, hmp-commands.h and hmp-commands-info.h from their .hx files, and each binary's gdbstub-xml.c from its gdb-xml inputs, with Crystal alone. bin/hxtool and bin/feature-to-c are shard targets; the logic is in src/glint/qemu/. feature_to_c numbers registers as GDB's target description format and QEMU's GDBFeature require: base_reg is the first register's number, and regs[] is indexed by regnum − base_reg, with NULL for unused numbers. num_regs is the highest regnum − base_reg + 1, and an omitted regnum is one more than the previous register's.

Passage: None from the text: Track T cites QEMU's own sources: the .hx format and scripts/hxtool, include/exec/gdbstub.h (GDBFeature) and gdbstub/gdbstub.c (how base_reg and regs[] are used), and GDB's "Target Description Format".

Demonstration (Crystal 1.18.2, clang 21, clean checkout): $ QEMU_SRC=/path/to/qemu-11.1.2 crystal spec 48 examples, 0 failures, 0 errors, 0 pending Spec checks:

hxtool's output equals scripts/hxtool run by BusyBox sh (shell, not Python, as the plan allows) on all three .hx files;
fixtures cover every directive and the malformed-RST errors;
feature_to_c output compiles with clang -fsyntax-only against QEMU's include/exec/gdbstub.h for both binaries' input lists;
a fixture's XML bytes come back exactly from a compiled harness;
a fixture with a starting regnum and a gap gets the right base_reg, num_regs and NULL slots. Generated sizes: hmp-commands-info.h 683 lines, hmp-commands.h 1168, qemu-options.def 1108, aarch64 gdbstub-xml.c 769, x86_64 351. Register numbering: aarch64-core 0/34, aarch64-fpu 34/34, arm-core 0/26 (slots 16–24 NULL before cpsr at 25), arm-vfp 0/17, arm-vfp3 0/33, arm-neon 0/49, i386-64bit 0/66, i386-64bit-apx 0/16. $ crystal spec (no QEMU_SRC) 44 examples, 0 failures, 0 errors, 3 pending

Size: 113 lines added outside spec/ (src/glint/qemu 94, tools/qemu 25, shard.yml 4).

Review: Codex wrote both ports and their specs.

First attempt resubmitted: feature_to_c ignored regnum, giving aarch64-fpu base_reg 0 instead of 34 and packing arm-core's cpsr into slot 16; it also parsed each file twice.
Resubmission: numbers per the format, one parse, duplicate and backward numbers rejected, and specs for both real files.
The reviewer added only the two shard targets to the current shard.yml.
One full-suite run printed an exception trace from a child process while installing shards; three later runs were clean and it did not recur. Verdict: merge after resubmit.

Co-Authored-By: Codex <noreply@openai.com> Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KwSvrFimma9KoJWQkGHSpT

count: 402

log

check read_unaudited read the check-ins that change files, and every verdict's tag change with who sent it, by the served repository's receipts; keep the check-ins no verdict that counts has judged, in the order it received them · repository /var/lib/fossil/glint.fossil

unaudited

List the check-ins that change files and that no verdict that counts has judged (docs/protocol-v2-verdicts.md): on one branch or every branch, oldest first in the order the server received them, at most 50, with how many there are. From a clone's checkout it asks the server. It writes nothing.

capabilities needed: (none)