docs: publish the v1 beta evidence

Publish the exact-candidate Windows and Linux results, signed-tag and clean-install status, provisional macOS boundary, and reliable runtime-first Beta 1 installation order. The post-publication verifier now cleans read-only module caches safely.

This commit is an exact sanitized export from the private development record. Material drafting and review were assisted by OpenAI Codex; Cole Speelman reviewed the changes and accepts human responsibility.

Signed-off-by: Cole Speelman <crspeelman@gmail.com>

CHANGELOG.md

@@ -27,24 +27,29 @@ not a production-stability promise.
 - Public beta support policy for evaluation and classroom use, including a
   provisional macOS lane and a community compatibility-reporting path.
 
-### Pre-beta verification baseline
+### Release verification
 
-Maintainer-run Linux and native Windows matrices passed on public commit
+The exact public Beta 1 commit
-`113c95c21e57227b4675c9fda015ada59cc9e9a6` (tree
+`b7a84054d755e42285e50298e41e47f06a8325a5` (tree
-`a2aeb4dac22853cb3894e3e487b94bbeff5051e5`) with Go 1.25.12 and Go
+`be9e118e38dfebed19f60403ededdadabe07d2aa`) passed maintainer-run
-1.26.5. The tested golden output had the same SHA-256 on each tested host:
+executed Linux and native Windows matrices with Go 1.25.12 and Go 1.26.5. The
+tested golden output had the same SHA-256 on each tested host:
 `63fa75a3049a3a8a12d769d7f9b6b510dfe763baacf706775b75cef2c57a984f`.
 
-That commit is a pre-beta baseline, not evidence for the later Beta 1 commit.
+The complete release preflight passed, including race tests, bounded parser
-The required matrix must be rerun from the exact candidate before its tags are
+fuzz smoke, known-vulnerability analysis of both zero-third-party-dependency
-published. Native macOS execution remains pending and is explicitly provisional
+modules, candidate-version provenance, and six cross-builds. The signed runtime
-for this beta.
+and compiler tags were published in that order. Fresh direct and public-proxy
+runtime-first installs passed after normal proxy propagation. Native macOS
+execution remains pending and is explicitly provisional for this beta.
 
 ### Known limitations
 
 - Source syntax, generated format, CLI details, and runtime API may change
   before final v1.
 - Native macOS behavior has not yet been maintainer-validated.
+- In a shared fresh Go module cache, add the nested `sando` runtime before
+  installing the parent compiler module at the same Beta 1 version.
 - Prebuilt binary artifacts, checksums, SBOMs, reproducible archives,
   key-recovery rehearsal, systematic browser differential, long fuzz,
   benchmark, and final compatibility gates remain work toward the release

PUBLIC-SNAPSHOT.json

@@ -1 +1 @@
-{"schema_version":2,"project":"sandwich-hime","export_policy":"exact-allowlist-v1","export_mode":"release","file_count":80,"allowlist_sha256":"e40a56b3431efdd99b3a78c38c387722de347216640383fc849569a817edf5c6","manifest_sha256":"93870a8c1e91602754de257c30249892821356ea9bf8d89e1b4502b62d769b06"}
+{"schema_version":2,"project":"sandwich-hime","export_policy":"exact-allowlist-v1","export_mode":"release","file_count":80,"allowlist_sha256":"e40a56b3431efdd99b3a78c38c387722de347216640383fc849569a817edf5c6","manifest_sha256":"1ba4d6b66c26796b5bbce118680726f9a964824f72142aea568642e25d0f33b3"}

PUBLIC-SNAPSHOT.sha256

@@ -2,7 +2,7 @@
 658ba4b4645426f8c3249337f47669074ae9249a31703dcd9ea4c1afec45e20b  ./.gitattributes
 d5ae411fb422b2388cac220f9655900eecbc49ece961b2bb2a6610347733b756  ./.gitignore
 98f663ab0f376b4550094465ec2e06192d1e0b0707604ec6794f20b0d10952c1  ./AI_CONTRIBUTIONS.md
-8bc6c7586a58bdc648c7d3df2db33fa6db6381a111da9d8fc2d5817b5e0517ad  ./CHANGELOG.md
+b1faa7df0336b9ba68b28136fb72e9ba44185c35ba8cbec01d01c00599ea5c46  ./CHANGELOG.md
 b696cab3cf482ff5737501371cca749369b119351383e698ced42bcdbcbfc8ae  ./CLA.md
 797e884105738fc931b585b695424f43ec5f296d8ab9bba5191b096e87a9e2c2  ./CONTRIBUTING.md
 86d7e49d5d90e0f98a4ad0f14b5d8b9f11ed09a1e29ecdf27388316b28e195e8  ./COPYRIGHT
@@ -13,10 +13,10 @@ a4570d054f072d33b8f17b0c8b162a6ee0ca37d7df2b1aee7e4b728ab350a892  ./GOVERNANCE.m
 47d857e49f89596bac9b09fc8ca57a668a33d01e2b51508acfc92ed321cdc27f  ./LICENSES.md
 b6aa08e5ccaec3c5dccdc19d7cd7f54a70adae4d57966263c7aa353c7ba70e08  ./MAINTAINERS.md
 6638db2f1fba831c79de835ce95c847a5b36c5b5c693b99a28655b2d096cc440  ./OUTPUT_EXCEPTION.md
-dda0ffee17bc1586ac16cc9707999cde2909a116c98cd43aeab85e0d3da7b636  ./README.md
+e17347ac53a05bad439308f8f9a6bc10f7438d06ce75d09a7f94aadc1d96a726  ./README.md
-9895823f9f7ba88ddf048c53c23ed32298b151ab049a9c4470366389d9498ff4  ./RELEASE.md
+9b78254033063ec97f1c9f66aaef9503e477e1f5c3dd602bb78fd78f9e64b90b  ./RELEASE.md
-6d1e49dd72ba9592a3fd0562fcca1857803a3dd86dc097b36043e20f5d5cd591  ./ROADMAP.md
+209decb6769646eb2f58e312fbcd9c497c26234f3d3115bae3f20493b8178584  ./ROADMAP.md
-50a24995b39a957e47e0e181f8771a87141302b4d308fa8d8bfdc2e70121c2b9  ./SECURITY.md
+ea26e6bcdf97746627f21ba64bed16bdb7630f808215e19558ff7c7550422491  ./SECURITY.md
 53bd6eda804d6b782bdb07115ec197c890813cf2d5d0125dfe8f47f5f92f75b0  ./SPEC.md
 3d9e680cdfe147df7cc9ff29ecf1d3e566e9cd559ae84db4880e559b9c7c7205  ./TRADEMARKS.md
 136a6d82db842547b342f8b0c9ffdc7c04f7c9b473b4ef6dca9dbc940cb24b54  ./cmd/himesan/main.go
@@ -24,12 +24,12 @@ dda0ffee17bc1586ac16cc9707999cde2909a116c98cd43aeab85e0d3da7b636  ./README.md
 1ecbba46f8b1b2d548a01d7e98afae17b2dd17a814338ff1f88db885655d1c07  ./docs/ARCHITECTURE.md
 9c598559a89fa4a9bdd2311bd1ed8330992d0a0f74ec8b29ac151fc0ff8fef16  ./docs/BENCHMARKS.md
 5c3a62fed80ca28d56558b8c75e8b5be8ba7d2554127adf4609d96da314e85b0  ./docs/BRAND.md
-4f7b04b3f74a2e90fc69019cad78a1287f4806ae84e7207cfdf000971702395d  ./docs/COMPATIBILITY.md
+796618a874a53176f7459192c3f5e0aa0c28c2027d4874d2ffa87e285d6692d0  ./docs/COMPATIBILITY.md
 5f4ac209a16ab110baeaa64a40c19d9239c903e17550c3f05e1e1473ddcc33a3  ./docs/DEVELOPMENT_SERVER.md
 51aa57a81131b64f76c45552122de842f22be92d81c8bba8f6fd38a18a7670d6  ./docs/DIAGNOSTICS.md
-9bd43853d91b841c4879dac94dda5aafefa25bcdf4a02763445e2506fc618b03  ./docs/SECURITY_EVIDENCE.md
+965a6ae57a8162c3af81f4987771e88617247f903088d210720ea2afab152cc9  ./docs/SECURITY_EVIDENCE.md
 d969c7b5486ee93e54232fd69d9db06f3b4dc1bba63001596ec48545073c2680  ./docs/THREAT_MODEL.md
-82107c57043af40b9e3ec03f4ed9efddcf3bcdda1765b99ec413f835be4a46e3  ./docs/V1_RELEASE_PLAN.md
+738258ba8f7e5ffea67d3f00eb70839590171971a9946a55b013ca95baf7aafb  ./docs/V1_RELEASE_PLAN.md
 f27c46ca63707bb8cc570eab1ea521824e94bc59b1d153998a5e91c2c7340d16  ./go.mod
 ca0bf5051d356d2602f46201fb1637ce48b629ad42161877eec13f743f215dc5  ./internal/compiler/abi_test.go
 6ef6a0f15a5aca1c8708cbf24218372e1fca9c6fead1a5a75d261faa69651af7  ./internal/compiler/backend.go
@@ -72,9 +72,9 @@ ff76daee5b642ad84af31701833246d68b54d09580192312d750a7a2e893a692  ./sando/go.mod
 80ff53787919e809b8085d6ad9c3e183c9c7c1d74cfeda73369ac5c4607c236f  ./sando/trust.go
 85621a44c730582f4410ac2c70418b739fb55e916f7e6b73a1a619982c459572  ./sando/write.go
 b188917e258890e6b6e4840a6fd946fc9a77cabc2068da3764f221e4a6a5df97  ./sando/write_test.go
-504897b29686e0ea7adff8beb8ec91612df3ee169397309c3b6b69eb0393491b  ./scripts/README.md
+c4a161faba46ce5b508c0788078256a520277a573a3ace0e85ae0c26b16d298b  ./scripts/README.md
 0bc796f71c863aa898674a26c56f055e3d81cf20629ca7b32fbae87d8841e0a8  ./scripts/check-licenses.sh
 6c73ad46beb642836ae4d462f40e7ecc8d86a3cc194e71a5d0859dac73af0410  ./scripts/release-check.sh
-9cd43005a7d0f3659b11c5c14e4e0b9e7f675b695da185f4ee97c54edebf0dc6  ./scripts/verify-public-install.sh
+78a64c7fb3a039b15a1d08b4c0b873952852287a07f670247b081e59dbb09a30  ./scripts/verify-public-install.sh
 24ed3c9a1d37e46a856cbbd68e5c58ae04c6c9852902b99ed675e1f428339a9f  ./scripts/verify.ps1
 f0cbd86759fa729064cb1c69991db2ac291792dadb6b1e1ba83794f2e390404d  ./scripts/verify.sh

README.md

@@ -48,26 +48,29 @@ semantic-version prerelease: source syntax, generated output, the runtime API,
 and CLI behavior may change before final v1, and this beta is not recommended
 for production deployment.
 
-Maintainer-run testing has established a pre-beta baseline on native Windows
+The exact Beta 1 source passed maintainer-run native Windows and executed Linux
-and on Linux with Go 1.25 and Go 1.26. That matrix must pass again on the exact
+matrices with Go 1.25.12 and Go 1.26.5. Native macOS validation is still
-Beta 1 commit before its tags are published. Native macOS validation is still
 pending, so macOS support is provisional in this beta. Mac learners and Go
 developers are warmly invited to try it and share their macOS version,
 architecture, Go version, command, and smallest useful reproduction. Community
 reports broaden the evidence; maintainers remain responsible for security
 review, triage, fixes, and release decisions.
 
-Install the beta compiler:
+Inside an application module, add the small runtime first:
+
+```sh
+go get gamertan.com/sandwich-hime/sando@v1.0.0-beta.1
+```
+
+Then install the beta compiler:
 
 ```sh
 go install gamertan.com/sandwich-hime/cmd/himesan@v1.0.0-beta.1
 ```
 
-Add the small runtime to an application module:
+Keep that runtime-first order for Beta 1. It avoids a Go module-cache ambiguity
-
+between the parent compiler module and its nested runtime when both use the
-```sh
+same prerelease version.
-go get gamertan.com/sandwich-hime/sando@v1.0.0-beta.1
-```
 
 For a reproducible one-off or classroom invocation that does not depend on the
 learner's `PATH`:
@@ -76,10 +79,11 @@ learner's `PATH`:
 go run gamertan.com/sandwich-hime/cmd/himesan@v1.0.0-beta.1 --help
 ```
 
-The runtime is released first as `sando/v1.0.0-beta.1`; the compiler follows as
+The runtime was released first as `sando/v1.0.0-beta.1`; the compiler followed
-`v1.0.0-beta.1`. If a newly announced version is not immediately available
+as `v1.0.0-beta.1`. Both signed tags, direct fetching, the public Go proxy, and
-through a module proxy, retry after the proxy has discovered the immutable tag
+the checksum database have been verified. A newly announced future version may
-or use the canonical Gitea release instructions.
+still need a short propagation interval before every proxy sees its immutable
+tag.
 
 For repository development:
 

RELEASE.md

@@ -68,14 +68,15 @@ Before `sando/v1.0.0-beta.1` and `v1.0.0-beta.1` are created:
    generated fixtures are current under that exact binary.
 7. Create signed annotated tags and publish the runtime tag first, then the
    compiler tag, from the same reviewed commit.
-8. Verify both documented installs from fresh `GOPROXY=direct` and public-proxy
+8. Verify both documented runtime-first installs from fresh `GOPROXY=direct`
-   caches. Record propagation delays as delays, not test passes.
+   and public-proxy caches. Record propagation delays as delays, not test
+   passes.
 
-The passing public commit
+Beta 1 was published from public commit
-`113c95c21e57227b4675c9fda015ada59cc9e9a6` (tree
+`b7a84054d755e42285e50298e41e47f06a8325a5` (tree
-`a2aeb4dac22853cb3894e3e487b94bbeff5051e5`) is only the pre-beta
+`be9e118e38dfebed19f60403ededdadabe07d2aa`) after its exact-candidate
-platform baseline. Any documentation, versioning, or code change produces a new
+matrix passed. Future prereleases require their own candidate evidence; this
-candidate and requires the candidate matrix to run again before tagging.
+result cannot be relabeled for another commit.
 
 ## RC and final gates
 
@@ -110,9 +111,10 @@ metadata exist, run:
 scripts/verify-public-install.sh --version vX.Y.Z
 ```
 
-That check exercises the documented `go install` and `go get` commands from
+That check adds the nested runtime before installing the parent compiler, then
-fresh direct-fetch and public-proxy caches. It is separate from the pre-tag,
+exercises both commands from fresh direct-fetch and public-proxy caches. The
-read-only `scripts/release-check.sh`.
+order avoids the Go module-cache ambiguity documented for Beta 1. It is
+separate from the pre-tag, read-only `scripts/release-check.sh`.
 
 Release notes report hardware, commit, datasets, commands, `ns/op`,
 allocations, response latency, and methodology for any performance claim.

ROADMAP.md

@@ -17,11 +17,12 @@ it is not a production-stability promise.
 - [x] Establish a public pre-beta Linux/Windows matrix on Go 1.25 and Go 1.26.
 - [x] Document macOS as provisional and invite useful community reports while
   retaining maintainer responsibility for security and releases.
-- [ ] Rerun all required Windows/Linux checks and deterministic generation on
+- [x] Rerun all required Windows/Linux checks and deterministic generation on
   the exact Beta 1 candidate.
-- [ ] Publish immutable `sando/v1.0.0-beta.1`, then
+- [x] Publish immutable `sando/v1.0.0-beta.1`, then
   `v1.0.0-beta.1`, from the reviewed public commit.
-- [ ] Verify clean direct and public-proxy installs after publication.
+- [x] Verify clean runtime-first direct and public-proxy installs after
+  publication.
 - [ ] Complete native macOS maintainer validation. This is an RC/final gate,
   not a Beta 1 gate.
 

SECURITY.md

@@ -17,7 +17,7 @@ advisories, and release decisions.
 
 | Version | Security status |
 | --- | --- |
-| `v1.0.0-beta.1` and `sando/v1.0.0-beta.1` | Current evaluation/classroom prerelease once published; best-effort security assessment and fixes; interfaces may change |
+| `v1.0.0-beta.1` and `sando/v1.0.0-beta.1` | Current published evaluation/classroom prerelease; best-effort security assessment and fixes; interfaces may change |
 | Public `main` | Development source; reports welcome, but no compatibility or production-support promise |
 | Older prereleases | Superseded when a newer prerelease or final version is published; reports are still triaged to determine affected versions |
 
@@ -133,7 +133,7 @@ an independent security audit, certification, or formal verification. Coverage
 percentages, passing scanners, and a clean vulnerability database result are
 evidence of specific checks—not proof that no vulnerability exists.
 
-Beta 1 publication requires signed annotated source tags, but may precede the
+Beta 1 uses signed annotated source tags, but precedes the
 complete prebuilt-artifact and key-recovery system. Signed binaries, checksums,
 an SBOM, reproducible archives, and complete source/build provenance are
 release-candidate and final-v1 gates. Their absence from a source-only beta must

docs/COMPATIBILITY.md

@@ -36,25 +36,25 @@ Beta 1 targets Go 1.25 and Go 1.26. Support is based on point-in-time,
 maintainer-run release matrices, not an implication of continuous CI coverage.
 A Go support change is announced in release notes before it takes effect.
 
-The current public evidence is a **pre-beta baseline** on commit
+The current public evidence is the exact Beta 1 source at commit
-`113c95c21e57227b4675c9fda015ada59cc9e9a6` (tree
+`b7a84054d755e42285e50298e41e47f06a8325a5` (tree
-`a2aeb4dac22853cb3894e3e487b94bbeff5051e5`):
+`be9e118e38dfebed19f60403ededdadabe07d2aa`):
 
 | Platform | Go lanes | Maintainer-run result |
 | --- | --- | --- |
 | Windows 11/amd64 on NTFS | 1.25.12, 1.26.5 | Native tests, race, vet, builds, generation, process cleanup, watcher boundaries, and temporary consumer compilation passed; privileged symlink and POSIX-only permission cases were not exercised |
 | Linux/amd64 on WSL2 with an ext4 checkout | 1.25.12, 1.26.5 | Tests, race, vet, builds, generation, focused filesystem/development cases, and license checks passed |
-| Linux/amd64 in isolated containers on a Linux server | 1.25.12, 1.26.5 | Tests, race, vet, builds, deterministic generation, and license checks passed |
+| Linux/amd64 in isolated containers on a Linux server | 1.25.12, 1.26.5 | The earlier pre-beta baseline passed tests, race, vet, builds, deterministic generation, and license checks; this was not rerun on the exact Beta 1 commit |
 | macOS | — | Native maintainer validation pending; provisional for Beta 1 |
 
 The golden generated file had SHA-256
 `63fa75a3049a3a8a12d769d7f9b6b510dfe763baacf706775b75cef2c57a984f`
 on every tested Windows and Linux lane.
 
-Because the Beta 1 candidate contains changes after that public baseline, the
+The signed Beta tags and fresh direct/public-proxy installation were verified
-complete Windows/Linux matrix must be rerun on the exact candidate before the
+after publication. For Beta 1, add the nested runtime to an application module
-tags are published. The baseline does not become beta evidence merely because
+before installing the parent compiler at the same version; this avoids a Go
-its code is nearby in history.
+module-cache path-selection ambiguity observed in the reverse order.
 
 ## macOS feedback
 

docs/SECURITY_EVIDENCE.md

@@ -11,23 +11,20 @@ verification, or guarantee that no vulnerability exists.
 | Field | Value |
 | --- | --- |
 | Assessment date | 2026-08-12 |
-| Evidence sets | Clean security self-assessment plus an exact-commit pre-beta platform baseline; neither is evidence for the later Beta 1 candidate |
+| Evidence sets | Clean security self-assessment plus exact-commit Beta 1 platform, release, signing, and installation checks |
-| Public commit | `113c95c21e57227b4675c9fda015ada59cc9e9a6` |
+| Public commit | `b7a84054d755e42285e50298e41e47f06a8325a5` |
-| Public tree | `a2aeb4dac22853cb3894e3e487b94bbeff5051e5` |
+| Public tree | `be9e118e38dfebed19f60403ededdadabe07d2aa` |
-| Maintainer-run environments | Windows 11/amd64 on NTFS; Ubuntu 20.04/amd64 under WSL2 on ext4; Linux/amd64 server containers |
+| Maintainer-run environments | Windows 11/amd64 on NTFS; Ubuntu 20.04/amd64 under WSL2 on ext4; supplementary pre-beta Linux/amd64 server containers |
 | Supported Go lanes exercised | Go 1.25.12 and Go 1.26.5 |
 | Declared minimum Go | Go 1.25 |
 | Assessor | Project maintainer with AI-assisted code review; human responsibility retained |
 
-The named platform runs used the exact public commit and tree above. Hostnames,
+The named Windows and WSL2 platform runs used the exact public commit and tree
-network addresses, account names, private paths, private repository identities,
+above. The isolated server-container matrix preceded the final candidate and
-and private commit mappings are intentionally absent from this public ledger.
+is retained only as supplementary Linux evidence. Hostnames, network addresses,
-
+account names, private paths, private repository identities, and private commit
-Beta 1 necessarily changes the tree through versioning, provenance,
+mappings are intentionally absent from this public ledger. Native macOS
-documentation, or source fixes. Therefore this baseline cannot be relabeled as
+execution remains pending and is provisional for the beta.
-Beta 1 evidence. The required Windows/Linux campaign must pass again on the
-exact Beta 1 candidate before either tag is published. Native macOS execution
-remains pending and is provisional for the beta.
 
 ## Observed security self-assessment evidence
 
@@ -52,7 +49,7 @@ baseline commit.
 | URL scheme handling | ordinary/trusted URL test matrix | Pass for enumerated cases |
 | Filesystem boundaries | symlink, nested-module, VCS, ownership, stale-output tests | Pass for tested cases; see open findings |
 | Development proxy browser boundary | Host, Origin, Fetch Metadata, CSP, fragment and response tests | Pass for tested cases |
-| Platform behavior | Native Windows and executed Linux matrices; macOS cross-compilation | Windows/Linux pass for tested lanes; native macOS pending |
+| Platform behavior | Exact-candidate native Windows and executed Linux matrices; macOS cross-compilation | Windows/Linux pass for tested lanes; native macOS pending |
 
 Coverage measures statements executed by tests. It is not branch completeness
 and is not evidence that the executed behavior is secure.
@@ -61,7 +58,7 @@ and is not evidence that the executed behavior is secure.
 and reachable through its analysis. A clean result cannot detect unknown flaws,
 design errors, or vulnerabilities outside its model.
 
-## Pre-beta native compatibility matrix
+## Beta 1 native compatibility matrix
 
 These are maintainer-run, point-in-time results, not continuous CI and not an
 independent audit.
@@ -70,7 +67,7 @@ independent audit.
 | --- | --- | --- | --- |
 | Windows 11/amd64, NTFS | 1.25.12, 1.26.5 | Native PowerShell verifier with race; root/runtime tests, vet, trimpath build, freshness, two generation passes, process-tree cleanup, watcher boundaries, and temporary consumer compilation | Pass. Symlink-output rejection skipped because the test account lacked symlink privilege; the read-only-directory case is POSIX-only |
 | Ubuntu 20.04/amd64 under WSL2, native ext4 checkout | 1.25.12, 1.26.5 | Race-enabled verifier; root/runtime tests, vet, build, two generation passes, ten focused filesystem cases, five focused development-process/watcher cases, and license check | Pass. This is Linux execution under WSL2, not bare-metal or Linux/arm64 evidence |
-| Linux/amd64 server containers | 1.25.12, 1.26.5 | Root/runtime tests, vet, builds, race, licensing, and deterministic generation in sequential isolated official Go containers | Pass. Container resources were capped at 1 CPU and 2 GiB; this is not Linux/arm64 evidence |
+| Linux/amd64 server containers | 1.25.12, 1.26.5 | Earlier pre-beta root/runtime tests, vet, builds, race, licensing, and deterministic generation in sequential isolated official Go containers | Pass on the earlier baseline only. Container resources were capped at 1 CPU and 2 GiB; this is supplementary evidence, not an exact Beta 1 lane or Linux/arm64 evidence |
 | macOS | — | Cross-compilation only | Native maintainer execution pending; provisional for Beta 1 |
 
 The generated golden `basic.sando.go` was 1,399 bytes and had SHA-256
@@ -144,6 +141,9 @@ go test ./internal/compiler -run '^$' \
   -fuzz '^FuzzCompileNeverPanics$' -fuzztime=20s
 go test ./internal/compiler -run '^$' \
   -fuzz '^FuzzGoDelimiterNeverPanics$' -fuzztime=20s
+
+./scripts/release-check.sh --version v1.0.0-beta.1
+./scripts/verify-public-install.sh --version v1.0.0-beta.1
 ```
 
 The fuzz targets currently assert process robustness and result bounds. They do
@@ -152,7 +152,7 @@ not yet prove semantic HTML safety.
 ## Assessment findings and remediation status
 
 The 2026-08-12 assessment identified six concrete gaps. Their status in the
-named public pre-beta baseline is recorded here:
+named public Beta 1 source is recorded here:
 
 | Finding | Current remediation | Executable evidence |
 | --- | --- | --- |
@@ -163,23 +163,23 @@ named public pre-beta baseline is recorded here:
 | Trusted-value warnings were described more broadly than their analysis supports | Policy and threat-model copy now call them best-effort lexical audit hints rather than type or taint analysis | Documentation assertion and review |
 | Public copy implied a completed systematic `html/template` differential campaign | Policy and public security copy now describe fixed adversarial cases and list systematic differential work as open | Documentation assertion and review |
 
-The clean remediated assessment source passed the race-enabled repository
+The exact public Beta 1 source passed the race-enabled repository verifier,
-verifier, sanitized-snapshot tests, both bounded fuzz-smoke targets,
+sanitized-snapshot tests, both bounded fuzz-smoke targets, compiler/runtime
-compiler/runtime known-vulnerability scans, and Windows/macOS cross-compilation
+known-vulnerability scans, candidate-version provenance checks, native Windows
-on 2026-08-12. Separately, the exact public pre-beta commit passed the native
+and executed Linux matrices, and Windows/macOS cross-compilation on 2026-08-12.
-Windows and executed Linux matrices recorded above. These results still do not
+Signed annotated runtime and compiler tags were then published from that commit
-become Beta 1 evidence: both sets of required checks must run on the exact
+in that order. Fresh runtime-first installation passed through both direct Git
-candidate after all candidate changes. Native macOS and the other gaps below
+resolution and the public Go proxy after normal proxy propagation. Native
-remain separate release decisions.
+macOS and the other gaps below remain separate release decisions.
 
 ## Open assurance gaps
 
-- the exact Beta 1 candidate Windows/Linux matrix and post-tag install checks
+- delivery to `security@sandwichhime.com` is owner-confirmed through a
-  must still run;
+  controlled domain catch-all; encrypted reporting, documented backup, and
-- confidential mailbox delivery and response/recovery procedure must be tested;
+  recovery rehearsal remain incomplete;
-- SSH tag-signing rehearsal passed, but the candidate tags still require
+- the signed annotated Beta tags and their common peeled commit were verified;
-  post-publication verification; prebuilt-artifact signing, checksums, SBOM,
+  prebuilt-artifact signing, checksums, SBOM, reproducible provenance, and key
-  reproducible provenance, and key recovery remain incomplete;
+  recovery remain incomplete;
 - native macOS, Linux/arm64, and Windows/arm64 execution remain outstanding;
 - Windows symlink rejection was not natively exercised because the test account
   lacked symlink privilege;

docs/V1_RELEASE_PLAN.md

@@ -31,17 +31,14 @@ repeatable install for learners and evaluators without claiming that the final
 v1 compatibility, native-platform, artifact, signing, or soak gates are
 complete.
 
-### Demonstrated in the pre-beta public baseline
+### Demonstrated for Beta 1
 
-Public commit `113c95c21e57227b4675c9fda015ada59cc9e9a6` (tree
+Public commit `b7a84054d755e42285e50298e41e47f06a8325a5` (tree
-`a2aeb4dac22853cb3894e3e487b94bbeff5051e5`) passed maintainer-run Go
+`be9e118e38dfebed19f60403ededdadabe07d2aa`) passed maintainer-run Go
 1.25.12 and Go 1.26.5 matrices on native Windows/amd64, Linux/amd64 under WSL2,
-and isolated Linux/amd64 server containers. The same generated golden SHA-256
+with the earlier pre-beta server-container run retained only as supplementary
-was observed across those lanes.
+Linux evidence. The same generated golden SHA-256 was observed across the exact
-
+Beta Windows and Linux lanes.
-That result is a pre-beta baseline only. The exact Beta 1 candidate must rerun
-the required Windows/Linux matrix after all version, documentation, and source
-changes and before tags are created.
 
 Other demonstrated controls include:
 
@@ -63,8 +60,7 @@ Other demonstrated controls include:
 - complete real-browser development-supervisor evidence;
 - deterministic prebuilt archives, checksums, SBOMs, signed binaries, and
   tested signing/recovery procedures; or
-- clean direct and public-proxy installation of the not-yet-published Beta 1
+- native macOS installation of the published Beta 1 tags.
-  tags.
 
 ## Beta 1 publication lane
 
@@ -75,13 +71,14 @@ dependency, and its interfaces may change.
 - [x] Define beta support, security, compatibility, and macOS-provisional
   language.
 - [x] Establish the named public pre-beta Linux/Windows baseline.
-- [ ] Rerun the supported Go matrix and deterministic generation on the exact
+- [x] Rerun the supported Go matrix and deterministic generation on the exact
   Beta 1 candidate.
-- [ ] Run the candidate-version freshness, bounded fuzz, vulnerability, and
+- [x] Run the candidate-version freshness, bounded fuzz, vulnerability, and
   license gates.
-- [ ] Publish immutable `sando/v1.0.0-beta.1`, then
+- [x] Publish immutable `sando/v1.0.0-beta.1`, then
   `v1.0.0-beta.1`, from the same reviewed public commit.
-- [ ] Verify clean direct and public-proxy installs and record the result.
+- [x] Verify clean runtime-first direct and public-proxy installs and record the
+  result.
 - [ ] Add native macOS maintainer evidence before RC; community reports inform
   that work but do not replace maintainer responsibility.
 

scripts/README.md

@@ -8,7 +8,7 @@ These scripts are intentionally understandable shell and PowerShell rather than
 - `verify.ps1` provides the equivalent native Windows lane; pass `-Race` to include the race detector.
 - `check-licenses.sh` enforces the AGPL compiler / Apache runtime boundary and prevents generated application Go from inheriting an AGPL identifier.
 - `release-check.sh --version vX.Y.Z` is a clean-checkout technical preflight, including exact candidate-version and generated-provenance checks. Beta publication follows the narrower prerelease gates in `RELEASE.md`; release candidates and final v1 additionally use `--public` with a human-reviewed `HIMESAN_RELEASE_EVIDENCE_DIR`. The script never tags, pushes, publishes, or deploys.
-- `verify-public-install.sh --version vX.Y.Z` is a post-tag/publication check. It verifies exact `go-get=1` package routes and runs the documented compiler install and runtime get from fresh direct-fetch and public-proxy caches without interactive Git credentials.
+- `verify-public-install.sh --version vX.Y.Z` is a post-tag/publication check. It verifies exact `go-get=1` package routes, adds the nested runtime before installing the parent compiler, and exercises fresh direct-fetch and public-proxy caches without interactive Git credentials.
 
 The canonical Linux CI and release preflight also run bounded fuzz sessions for the parser/context compiler and Go-aware delimiter scanner. Seed-corpus execution remains part of ordinary `go test`; the bounded sessions are extra evidence, not a substitute for longer scheduled fuzzing before v1.
 

scripts/verify-public-install.sh

@@ -103,6 +103,7 @@ fi
 scratch_dir=$(mktemp -d "${TMPDIR:-/tmp}/himesan-public-install.XXXXXXXX")
 cleanup() {
 	if [[ -n "${scratch_dir:-}" && -d "$scratch_dir" ]]; then
+		chmod -R u+w -- "$scratch_dir" 2>/dev/null || true
 		rm -rf -- "$scratch_dir"
 	fi
 }
@@ -116,7 +117,29 @@ run_install_pair() {
 	local installed_binary installed_version go_executable_suffix
 	mkdir -p "$mode_dir/gopath" "$mode_dir/modcache" "$mode_dir/buildcache" "$mode_dir/consumer"
 
-	printf '\n==> %s clean-cache install\n' "$mode"
+	printf '\n==> %s clean-cache runtime then compiler install\n' "$mode"
+	(
+		cd "$mode_dir/consumer"
+		go mod init example.invalid/himesan-public-install >/dev/null
+		env \
+			GIT_TERMINAL_PROMPT=0 \
+			GIT_CONFIG_NOSYSTEM=1 \
+			GIT_CONFIG_GLOBAL=/dev/null \
+			GIT_ASKPASS="$false_command" \
+			SSH_ASKPASS="$false_command" \
+			GOPATH="$mode_dir/gopath" \
+			GOMODCACHE="$mode_dir/modcache" \
+			GOCACHE="$mode_dir/buildcache" \
+			GOPROXY="$proxy" \
+			GOPRIVATE= \
+			GONOPROXY=none \
+			GONOSUMDB="$no_sum_db" \
+			GOSUMDB=sum.golang.org \
+			GOINSECURE= \
+			GOAUTH=off \
+			go get "gamertan.com/sandwich-hime/sando@$version"
+	)
+
 	env \
 		GIT_TERMINAL_PROMPT=0 \
 		GIT_CONFIG_NOSYSTEM=1 \
@@ -154,28 +177,6 @@ EOF
 		printf 'error: generated provenance did not record installed compiler version %s\n' "$version" >&2
 		exit 1
 	fi
-
-	(
-		cd "$mode_dir/consumer"
-		go mod init example.invalid/himesan-public-install >/dev/null
-		env \
-			GIT_TERMINAL_PROMPT=0 \
-			GIT_CONFIG_NOSYSTEM=1 \
-			GIT_CONFIG_GLOBAL=/dev/null \
-			GIT_ASKPASS="$false_command" \
-			SSH_ASKPASS="$false_command" \
-			GOPATH="$mode_dir/gopath" \
-			GOMODCACHE="$mode_dir/modcache" \
-			GOCACHE="$mode_dir/buildcache" \
-			GOPROXY="$proxy" \
-			GOPRIVATE= \
-			GONOPROXY=none \
-			GONOSUMDB="$no_sum_db" \
-			GOSUMDB=sum.golang.org \
-			GOINSECURE= \
-			GOAUTH=off \
-			go get "gamertan.com/sandwich-hime/sando@$version"
-	)
 }
 
 run_install_pair direct direct gamertan.com/sandwich-hime