feat(cef): second Early Accessibility Gate attempt — SetAccessibilityState, correctly scoped - #397
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…State, correctly scoped PR #391's blocker (CefClient has no GetAccessibilityHandler()) was real, but the underlying cause was a wrong assumption, not a dead end: GetAccessibilityHandler() lives on CefRenderHandler, which is explicitly OSR-only ("Implement this interface to handle events when window rendering is disabled" — include/cef_render_handler.h). This Views-based windowed host was never going to have that method available, no matter what it inherited from. Verified against real CEF 151 source (chromiumembedded/cef branch 7922) before writing any code, same discipline as the crash-reporting and Wayland work: CefBrowserHost::SetAccessibilityState's own doc comment (include/cef_browser.h) states windowed browsers need only this one call — "all platform accessibility objects will be created and managed by Chromium's internal implementation" — no CefAccessibilityHandler required for windowed mode at all. This is a small, isolated addition (one call + one proof line in OnAfterCreated, no new class inheritance) — proves accessibility state can be enabled intentionally (roadmap §23.1's first bullet). Does NOT yet prove the platform accessibility tree is actually observable — that needs OS-level AT-SPI introspection on Linux, not a CEF callback, and is separate follow-up work once this lands cleanly. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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Review Summary
This PR adds accessibility support by calling SetAccessibilityState(STATE_ENABLED) in the CEF host. The approach is well-documented and follows the CEF windowed-mode pattern correctly.
Critical Issue Found (Blocks Merge)
- Compilation Error: Missing
#include "include/cef_browser.h"header that declaresSTATE_ENABLEDandSetAccessibilityState- this will cause the build to fail
What Works Well
- The JavaScript test harness correctly validates the accessibility state on every cycle
- Documentation clearly explains the OSR vs windowed mode distinction
- Small, isolated change with minimal blast radius
- Proof lines properly added to verify functionality
Action Required: Add the missing header include to fix the compilation error before merging.
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Reviewer's GuideThis PR enables CEF accessibility for windowed browsers by calling SetAccessibilityState(STATE_ENABLED) on each browser creation and extends the launch-cycle proof harness to assert that this accessibility request occurs on every cycle alongside existing FFI and rendering proofs. Sequence diagram for CEF accessibility state enablement and launch-cycle proofsequenceDiagram
actor TestHarness
participant CEFProcess
participant WorldScriptHandler
participant CefBrowser
participant CefBrowserHost
participant Stdout
TestHarness->>CEFProcess: runCycle(index)
CEFProcess->>WorldScriptHandler: OnAfterCreated(browser)
WorldScriptHandler->>CefBrowser: GetHost()
CefBrowser-->>WorldScriptHandler: CefBrowserHost
WorldScriptHandler->>CefBrowserHost: SetAccessibilityState(STATE_ENABLED)
WorldScriptHandler->>Stdout: printf("[worldscript_host] accessibility_state_requested = true")
TestHarness->>CEFProcess: collect stdout
CEFProcess-->>TestHarness: stdout includes ACCESSIBILITY_STATE_PROOF_LINE
TestHarness->>TestHarness: [throw Error if proof line missing]
TestHarness->>TestHarness: [log success when FFI + rendering + accessibility-state proofs present]
File-Level Changes
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📝 WalkthroughWalkthroughThe CEF browser requests enabled accessibility state after creation. The launch-cycle proof validates this request after child-process output closes. Architecture and competency records document CI evidence and the remaining AT-SPI observability gap. ChangesAccessibility request verification
Estimated code review effort: 2 (Simple) | ~10 minutes Merge Risk:⚪ Minimal · up to The runtime change is localized to enabling accessibility state and recording its launch proof; the remaining documentation mismatch has no expected runtime, security, or availability impact. No actionable merge-blocking risk remains. Sequence Diagram(s)sequenceDiagram
participant worldscript_handler.cpp
participant CefBrowserHost
participant run-launch-cycle-proof.mjs
worldscript_handler.cpp->>CefBrowserHost: SetAccessibilityState(STATE_ENABLED)
worldscript_handler.cpp->>run-launch-cycle-proof.mjs: emit accessibility proof marker
run-launch-cycle-proof.mjs->>run-launch-cycle-proof.mjs: wait for closed output
run-launch-cycle-proof.mjs->>run-launch-cycle-proof.mjs: validate marker for each cycle
Possibly related PRs
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
✨ Finishing Touches 💡 1📝 Generate docstrings 💡
🧪 Generate unit tests (beta)
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Amazon Q flagged a missing include/cef_browser.h for STATE_ENABLED/SetAccessibilityState. Verified this was already transitively reachable (worldscript_handler.h -> cef_client.h -> cef_render_handler.h -> cef_browser.h, the same chain already proven by browser->GetHost()->TryCloseBrowser() compiling in this exact file since PR #388) — not a real "will fail to build" risk. Added the explicit include anyway as reasonable include-what-you-use hygiene; zero-risk, doesn't change behavior. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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CodeAnt review finding on PR #397: the accessibility docs still described the PR #391 reverted state while this PR's own code enables accessibility on every browser. Updates all 4 docs to reflect the real, CI-confirmed result: SetAccessibilityState(STATE_ENABLED) works cleanly in every one of 3 repeated cycles with zero regression to the FFI/rendering/crash-reporting/Wayland proofs. - cef-architecture-primer.md: full "Accessibility API" section rewritten with the real root cause (GetAccessibilityHandler is on CefRenderHandler, OSR-only, never reachable from this windowed host) and the confirmed CI evidence. - native-readiness.md: Early Accessibility Gate flips to PASS (state enablement only, tree observability explicitly still open); overall count corrected 7->9 PASS (an earlier miscount had dropped the pre-existing "Platform APIs adapter-contained" row). - CEF-RUST-COMPETENCY-MATRIX.md: accessibility_smoke stays false (same half-proven convention as crash_symbolization_smoke — state enablement isn't tree observability); checklist annotations updated with real evidence instead of the stale "real blocker" framing. - OWNERSHIP.yaml: both notes refreshed. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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Actionable comments posted: 3
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Inline comments:
In `@docs/architecture/native-readiness.md`:
- Line 71: Update the “Overall for this snapshot” summary to report 8 PASS
instead of 9 PASS, leaving the 2 DEBT-in-progress and 1 Not-yet-attempted counts
unchanged.
In `@docs/cef/knowledge/cef-architecture-primer.md`:
- Line 32: Update the accessibility API section heading to reflect that state
enablement is proven while AT-SPI tree observability remains unresolved,
matching the status described in the section body.
In `@scripts/cef/run-launch-cycle-proof.mjs`:
- Around line 206-213: Update the child-process lifecycle handling in the
launch-cycle proof flow to await the child stdout/stderr streams’ completion via
the close event before checking FFI, title, and accessibility proof markers.
Preserve the existing marker validation and error reporting, and add a lifecycle
test covering output that arrives after the exit event but before close.
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…xit-vs-close race - native-readiness.md: "9 PASS" was wrong — I'd counted "Platform APIs adapter-contained" from the separate Wave 1 PR B table into the Wave 2 snapshot's own count. Corrected to 8 PASS (the actual count within that snapshot's own table). - cef-architecture-primer.md: heading said "second attempt in progress" while the section's own body already documents the confirmed, CI-proven result. Renamed to reflect what's actually true. - run-launch-cycle-proof.mjs: real race condition, backed by CodeRabbit's own reproduction and Node.js docs — 'exit' fires as soon as the process terminates but stdio streams can still be open; 'close' guarantees all output has arrived. runCycle checked stdout markers right after 'exit', not 'close'. Added a bounded wait for 'close' before the FFI/title/accessibility-state checks. Scoped to runCycle only — the crash-reporting and Wayland proof functions poll stdout while the process is still alive, a different pattern not exposed to this race. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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Inline comments:
In `@docs/architecture/native-readiness.md`:
- Line 71: Update the “Overall for this snapshot” summary to match the scorecard
exactly: describe Sandbox posture as “Not yet attempted” rather than blank, and
use “DEBT — partial” for the two incomplete rows instead of “DEBT-in-progress.”
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…ing on PR #397 The summary said "DEBT-in-progress" and "correctly left blank" but the table's actual literal status text is "DEBT — partial" and "Not yet attempted", not blank. Matched the summary wording to the table exactly. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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Live evidence while this PR was in flight: PR #397's Storybook job hit its 25min timeout stuck on the exact same azure.archive.ubuntu.com font package downloads diagnosed earlier today — this time in a different job (Storybook's own `playwright install --with-deps chromium`), confirming the same throughput problem hits every one of ci.yml's 5 `--with-deps` call sites (build, e2e, e2e-deep, storybook, vrt), not just the two jobs already covered (rust-tauri, CEF harness). All 5 now cache /var/cache/apt/archives/*.deb under one shared key — they install the same system packages on the same runner image, so a cache write from any one job warms it for the rest.
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… harness (#398) * ci: path-scope Tauri Rust Gate, skip CEF harness on docs-only PRs, cache apt archives Today's recurring CI hangs traced to azure.archive.ubuntu.com apt .deb download throughput (~121 kB/s vs ~3.7 MB/s for the index fetch) — real, external, not repo code. Three low-risk mitigations that reduce how often and how much we depend on that path: - New `changes` job in ci.yml diffs against the PR base SHA (fails open to tauri=true on any ambiguity) and gates `rust-tauri` so docs/frontend-only PRs skip its apt-get(libgtk/libwebkit) + cargo build entirely. `ci-success` now treats rust-tauri:skipped as a pass; only `changes` itself is a hard requirement, closing the fail-open detector's own failure mode. - cef-learning-harness.yml's PR trigger drops `docs/cef/**` — a docs-only change can't regress the built host, so it no longer pays for the ~30min rebuild+launch-cycle proof. Code paths (apps/desktop-cef/**, scripts/cef/**) still trigger it regardless of accompanying doc changes. - actions/cache on /var/cache/apt/archives/*.deb for both apt-get install steps (Tauri Linux deps, CEF host + Wayland deps) so a cache hit skips the slow mirror download outright instead of just the index refresh. * ci: add Cargo caching and a fast lint/typecheck gate ahead of the CEF build Neither src-tauri's cargo fmt/check/clippy/test nor the CEF harness's Corrosion-driven rust-core build had any Cargo caching — every run re-fetched and rebuilt the full dependency tree from scratch. Adds Swatinem/rust-cache to both, keyed on Cargo.lock + rustc version so a toolchain bump or lockfile change invalidates cleanly. Also adds a `fast-gate` job (lint + typecheck) ahead of the CEF harness's `harness` job so a trivial code-style or type error fails in ~2-3min instead of only surfacing after the full ~30min SDK-fetch+CMake+Rust+Xvfb cycle. Duplicates a small slice of ci.yml's quality job (which still runs in parallel) — a deliberate trade given how expensive the full CEF build is. * fix(security): allowlist apt-cache-key false positives in gitleaks scan gitleaks' generic-api-key heuristic flagged the two new actions/cache `key:` values added in this PR (apt-cef-harness-deps-v1, apt-tauri-linux-deps-v1) — a YAML `key:` field next to a hyphenated alphanumeric string matches its pattern even though these are static, non-secret cache-namespace literals, not credentials. Extends the existing narrow-regex allowlist convention (exact-match, not path-based) rather than weakening the rule. * ci: cache apt archives for every Playwright --with-deps install site Live evidence while this PR was in flight: PR #397's Storybook job hit its 25min timeout stuck on the exact same azure.archive.ubuntu.com font package downloads diagnosed earlier today — this time in a different job (Storybook's own `playwright install --with-deps chromium`), confirming the same throughput problem hits every one of ci.yml's 5 `--with-deps` call sites (build, e2e, e2e-deep, storybook, vrt), not just the two jobs already covered (rust-tauri, CEF harness). All 5 now cache /var/cache/apt/archives/*.deb under one shared key — they install the same system packages on the same runner image, so a cache write from any one job warms it for the rest. * docs(ci): fix stale actions/checkout version annotation (v6 -> v7.0.1) CodeRabbit finding on PR #398, independently re-verified: dereferencing both tags shows v6 -> d23441a4..., v7.0.1 -> 3d3c42e5... — the SHA pinned throughout this repo's workflows is actually v7.0.1, not v6. Pre-existing across all workflow files (this pin was copied verbatim as this repo's established convention, not introduced by this PR); fixed here only in the two files this PR already touches to stay in scope.
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Wave 2 exit criterion "initial crash-reporting/symbolization proof" is now genuinely closed, honestly scoped: our own code's crash frames symbolize end-to-end via dump_syms + minidump-stackwalk (real CI evidence, this PR's own harness run); Chromium/CEF-internal frames remain unsymbolized (no CEF distribution ships debug symbols, verified against cef-builds.spotifycdn.com/index.json) — a real, permanent limitation, not a "not attempted yet" gap. - CEF-RUST-COMPETENCY-MATRIX.md: crash_symbolization_smoke: false -> true (YAML manifest, Appendix A.1 checklist, CEF competency gate item, Operational CEF domain row, "does NOT claim" section all updated in the same commit as the flip, per this doc's own update discipline). - cef-architecture-primer.md: "Crash reporting" section rewritten with the full first-assumption -> real-research -> second-attempt -> CI-evidence narrative, matching the established accessibility-section pattern (PR #391 -> #397). - native-readiness.md, OWNERSHIP.yaml: corresponding row/note updates. Docs deliberately held back until this point — code was pushed and CI-validated first (including two real CI-driven fixes this branch needed: CMAKE_BUILD_TYPE reverted from a broken RelWithDebInfo attempt, and CodeRabbit-flagged hardening), same sequencing as every other Wave 2 proof this project has shipped.
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…lk (#400) * feat(cef): crash-symbolization proof via dump_syms + minidump-stackwalk Wave 2 exit criterion "initial crash-reporting/symbolization proof" (docs/cef/ROADMAP-CEF-DESKTOP-MIGRATION.md §3142) was only half-closed — crash reporting was proven (PR #392), symbolization was marked "needs a complete Chromium source checkout, out of reach" and not attempted. Real research (mirroring the PR #391->#397 accessibility second-attempt pattern) found that assumption doesn't hold for our own code's frames: dump_syms (mozilla/dump_syms) and minidump-stackwalk (rust-minidump/ rust-minidump) are both standalone Rust projects with prebuilt Linux binaries, needing no Chromium checkout at all — confirmed by reading their own READMEs and testing dump_syms's -s/--store output layout locally against a throwaway compiled binary before writing any CI code. What's actually proven: a deliberate crash inside *our own* code (rust-core's new worldscript_rust_debug_crash_self_test, triggered only behind --debug-crash-self, panic=abort -> real SIGABRT) produces a Crashpad dump that dump_syms + minidump-stackwalk resolve end-to-end back to the crashing function's name. What's honestly still out of reach: Chromium/CEF-internal frames (e.g. a chrome://crash renderer crash) — CEF's official Spotify-hosted builds ship no separate debug-symbols archive for any distribution type, verified against their own index.json, so those frames have no debug info to resolve regardless of tooling. - rust-core: new FFI function + `debug = true` in [profile.release] (cargo's release profile strips debug info by default; without this dump_syms has nothing to extract from the Rust side). - main.cpp: --debug-crash-self flag, gated, never reachable otherwise. - New scripts/cef/run-symbolization-proof.mjs — separate script, not a mode flag on the existing crash-reporting proof (same no-shared-code- coupling discipline established after the PR #391 regression). - CI: build type RelWithDebInfo (was Release — needed for our own DWARF debug info); both tools fetched as pinned, sha256-verified prebuilt release binaries (~3.6MB each), not built from source. Docs intentionally not yet updated with "proven" language — this is the implementation to be validated by real CI, same sequencing as every other Wave 2 proof this project has shipped. * fix(cef): revert CMAKE_BUILD_TYPE to Release, add -g directly on worldscript_host Real CI failure on this branch's first push: CMAKE_BUILD_TYPE=RelWithDebInfo broke CEF's own chrome-sandbox POST_BUILD copy step — Error copying file (if different) from ".../build/cmake-src/RelWithDebInfo/ chrome-sandbox" to ".../build/worldscript_host/chrome-sandbox" The fetched "minimal" SDK distribution only ships Release/ and Debug/ subdirectories of prebuilt binaries (confirmed by the error itself — the source path never existed), so CEF's own build macros had nothing to copy for a build type they don't specially handle. Fix: keep CMAKE_BUILD_TYPE=Release (CEF's macros stay on the path they expect) and add -g directly to just the worldscript_host target via target_compile_options — gives our own crash-symbolization proof real DWARF debug info without touching how CEF's prebuilt binaries get referenced. * fix(ci): harden dump_syms/minidump-stackwalk download+resolution CodeRabbit finding on PR #400, verified real and applied: `curl -sL` without --fail writes an HTTP-error response body to the tarball instead of failing cleanly, surfacing later as a confusing checksum mismatch rather than a clear download-failure message; added --fail plus --retry 3 --retry-all-errors for the same transient-network resilience this repo's whole CI-optimization pass today has been chasing. `find ... | (implicit first line via $())` could resolve to an empty path on zero matches (confusing downstream EACCES/ENOENT) or corrupt $GITHUB_ENV on multiple matches; now selects exactly one path via `-print -quit` and verifies it's executable before writing it out. * fix(cef): address CodeRabbit nitpicks — regex-escape pgrep pattern, structural JSON check Both real, both fixed (CodeRabbit review on PR #400, nitpick section): - listMatchingPids(): pgrep -f treats its argument as an extended regex; binaryPath was interpolated unescaped, so '.'/'+' etc. in the runner's workspace path could match arbitrary characters and produce a false "orphaned process" positive. Escaped before use. - The symbolization check was a raw substring match over minidump- stackwalk's whole JSON document — the schema has module names/file paths/assertion strings the function name could coincidentally appear in outside an actually-resolved frame. Now parses the JSON and checks crashing_thread.frames[].function specifically (verified against rust-minidump's own json-schema.md before writing this). * docs(cef): flip crash_symbolization_smoke to true with real CI evidence Wave 2 exit criterion "initial crash-reporting/symbolization proof" is now genuinely closed, honestly scoped: our own code's crash frames symbolize end-to-end via dump_syms + minidump-stackwalk (real CI evidence, this PR's own harness run); Chromium/CEF-internal frames remain unsymbolized (no CEF distribution ships debug symbols, verified against cef-builds.spotifycdn.com/index.json) — a real, permanent limitation, not a "not attempted yet" gap. - CEF-RUST-COMPETENCY-MATRIX.md: crash_symbolization_smoke: false -> true (YAML manifest, Appendix A.1 checklist, CEF competency gate item, Operational CEF domain row, "does NOT claim" section all updated in the same commit as the flip, per this doc's own update discipline). - cef-architecture-primer.md: "Crash reporting" section rewritten with the full first-assumption -> real-research -> second-attempt -> CI-evidence narrative, matching the established accessibility-section pattern (PR #391 -> #397). - native-readiness.md, OWNERSHIP.yaml: corresponding row/note updates. Docs deliberately held back until this point — code was pushed and CI-validated first (including two real CI-driven fixes this branch needed: CMAKE_BUILD_TYPE reverted from a broken RelWithDebInfo attempt, and CodeRabbit-flagged hardening), same sequencing as every other Wave 2 proof this project has shipped.
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…feedback)
Real drift caught by external review of this session's own work: the
register's own rule is "assign an owner before the corresponding wave
begins, not before" -- correct and deliberate at Wave 0 when nothing
existed. Mid-Wave-2, with real implementation/CI/harness evidence now
landed for specific risks, several rows had fallen behind that rule
without anyone noticing.
R-06 (CEF/Rust/C++ lifetime defects): the row's own exit condition
("Learning harness green in CI across repeated start/stop cycles") is
genuinely met (scripts/cef/run-launch-cycle-proof.mjs, 3/3 cycles, PR
#388+) plus a real callback-lifetime bug found and fixed (PR #390).
Assigned cef-runtime/rust-core, moved OPEN -> MITIGATING -- not CLOSED,
since IO-thread/render-process-side/async-cancellation lifetime rules
remain untouched (competency matrix's own "Partial" status for that
domain).
R-13 (accessibility regression): the row's own mitigation cites "Early
integration spike (Sec23.1)", which is now real (SetAccessibilityState,
PR #397, zero regression). Assigned cef-runtime/desktop-architecture,
moved OPEN -> MITIGATING -- Wave 16 certification exit criteria remain
explicitly unmet; only the spike half is evidenced.
All other rows correctly stay *unassigned*/OPEN -- their corresponding
waves (4, 5, 7, 8, 9, 11, 12, 14, 15, 16-full) haven't begun, per this
register's own rule. This is not a one-time fix -- the "Review cadence"
section now documents this checkpoint so future Wave exits re-check the
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) * research(cef): diagnostic-only Linux sandbox feasibility inventory Wave 2 "Sandbox posture" row (native-readiness.md) has been "Not yet attempted" since ADR-0020 explicitly deferred it (main.cpp: no_sandbox=true unconditionally). Before attempting anything, gather real evidence on whether it's even feasible here. Confirmed against CEF's own docs/sandbox_setup.md and Chromium's docs/linux_sandboxing.md before writing this: unlike Windows (cef_sandbox_win.h) and macOS (cef_sandbox_mac.h), CEF has no Linux-specific sandbox API at all — the sandbox is entirely a Chromium-internal mechanism (CefSettings.no_sandbox is the only lever), using either the legacy setuid chrome-sandbox helper or (preferred automatically since Chromium M-43) unprivileged user namespaces if the kernel/policy allows it. New scripts/cef/check-linux-sandbox-inventory.mjs runs a functional test (unshare --user --pid --fork), not just a sysctl read — AppArmor profiles or container-level restrictions can block unprivileged namespace creation even when kernel.unprivileged_userns_clone claims it's enabled. Zero behavior change: this only reports what the runner supports, same non-invasive pattern as the existing clean-machine dependency inventory. * fix(cef): address CodeRabbit findings on sandbox inventory PR Both real, both fixed: - Guarded the AppArmor status read: existsSync() doesn't guarantee the following readFileSync() succeeds (TOCTOU, permissions) — an unguarded throw here would abort this whole diagnostic script before it even reaches CEF SDK setup, which is worse than the one field it's checking being unavailable. - The job summary previously only wrote a pointer ("see the step above") instead of the actual inventory data. Now tees the single diagnostic invocation's output to $RUNNER_TEMP and cats it into GITHUB_STEP_SUMMARY — no second invocation, per the finding's own note not to rerun the diagnostic. * docs(cef): sandbox acceptance criteria + split conflated dependency-inventory gate item Incorporates external review feedback on this session's own competency tracking, both real and substantive: 1. Documents an explicit acceptance bar for the *future* sandbox-enable PR (this PR stays diagnostic-only): must show browser/renderer/GPU processes actually running under the sandbox (real per-process status, not just "launched without complaining"), zero regression to existing proofs, a reproducible sandbox-status proof in CI. Explicitly disallowed: silently trading no_sandbox=true for a narrower blanket disable (e.g. --disable-setuid-sandbox) while still claiming the row proven. CI-sandbox-proof and production-packaging- sandbox-proof are two separate gates -- the latter is real, later packaging-wave scope, not to be pulled into Wave 2. 2. The existing "Linux dependency inventory" gate item (competency matrix, both checklists) and native-readiness.md's matching row conflated two different goals: Wave 2's own package-presence + ldd- linkage verification (PR #395, genuinely complete) and a later packaged-installer multi-distro compatibility declaration (not Wave 2 scope). Split into two items -- the Wave-2-scoped half now checked/ PASS (matching this project's own established convention for the Wayland row: proven on what Wave 2 actually needs, not blocked pending a broader matrix), the packaged-installer half stays unchecked/open, correctly scoped later. Gate count: 10 of 13 (was 8 of 12 -- 13 not 12 because of the split, not scope creep). sandbox_smoke stays false; "sandbox development plan validated" is a different, now-satisfied item per its own literal wording. * docs(cef): write the upgrade playbook proactively, breaking a real circular dependency The competency gate requires "upgrade playbook exists" before Wave 4's privileged IPC proceeds, but the playbook's own prose said "Not started... will get real content the first time [the CEF version pin] actually moves." That's circular: the gate can't be satisfied until an upgrade happens, but nothing forces an upgrade to happen -- external review feedback on this session's own work caught it. Fix: write a real, executable 15-step procedure now, synthesized from scripts/CI that already exist from Wave 2's own proof work (pin change -> SHA/size verify -> fetch -> build -> lifecycle harness -> sandbox -> crash -> symbolization -> accessibility -> X11 -> Wayland -> dependency/linkage diff -> API diff -> docs -> rollback pin), plus an emergency security-patch lane (roadmap Sec34.1.2) and binding-crate-specific notes. Explicitly not claimed as battle-tested -- the doc's own Status line and closing section both say it must be enriched with what actually broke after the first real upgrade, not treated as finished now that it has content. Flips both "Upgrade playbook written" (Appendix A.1) and "upgrade playbook exists" (CEF competency gate) to checked -- gate count 11/13 (was 10/13 after the earlier sandbox+dependency-inventory split in this same PR). * docs(cef): fix risk-register drift on R-06 and R-13 (external review feedback) Real drift caught by external review of this session's own work: the register's own rule is "assign an owner before the corresponding wave begins, not before" -- correct and deliberate at Wave 0 when nothing existed. Mid-Wave-2, with real implementation/CI/harness evidence now landed for specific risks, several rows had fallen behind that rule without anyone noticing. R-06 (CEF/Rust/C++ lifetime defects): the row's own exit condition ("Learning harness green in CI across repeated start/stop cycles") is genuinely met (scripts/cef/run-launch-cycle-proof.mjs, 3/3 cycles, PR #388+) plus a real callback-lifetime bug found and fixed (PR #390). Assigned cef-runtime/rust-core, moved OPEN -> MITIGATING -- not CLOSED, since IO-thread/render-process-side/async-cancellation lifetime rules remain untouched (competency matrix's own "Partial" status for that domain). R-13 (accessibility regression): the row's own mitigation cites "Early integration spike (Sec23.1)", which is now real (SetAccessibilityState, PR #397, zero regression). Assigned cef-runtime/desktop-architecture, moved OPEN -> MITIGATING -- Wave 16 certification exit criteria remain explicitly unmet; only the spike half is evidenced. All other rows correctly stay *unassigned*/OPEN -- their corresponding waves (4, 5, 7, 8, 9, 11, 12, 14, 15, 16-full) haven't begun, per this register's own rule. This is not a one-time fix -- the "Review cadence" section now documents this checkpoint so future Wave exits re-check the same way. * fix(ci): add continue-on-error to match the sandbox inventory step's own documented intent Graphite finding on PR #402, verified real: the step's own QNBS-v3 comment says "Non-fatal by design," but continue-on-error: true was never actually set. The script defensively catches its own runtime errors, but a Node.js syntax error or missing module would still fail the step (and this non-blocking job) despite the documented intent — now matches what the comment already claimed. * fix(cef): address CodeRabbit's post-sync review wave on PR #402 Six real findings, all fixed: - CEF-RUST-COMPETENCY-MATRIX.md still described the upgrade playbook as a skeleton in two places (the Rust-binding domain row, and the "does NOT claim" section) even though it was written this same PR -- these edits had landed on a held-back branch instead of this one by mistake; fixed here directly. - binding-upgrade-playbook.md Step 1's "only file a routine bump touches" contradicted Step 14 (docs updated in the same PR) -- clarified to mean the only *version-pin* file, not the only file in the whole procedure. - Step 2 claimed "verify SHA/size" but verifyArchive() only checks sha1, never sizeBytes -- corrected the claim to match the real code. - Step 9 / the emergency lane claimed "basic accessibility/focus" but the actual assertion (accessibility_state_requested = true) proves state enablement only, not focus -- corrected, matching the same state-vs-tree-observability honesty already applied everywhere else in this doc set. - "Signature verification" mislabeled a bare SHA-1 checksum comparison against a value this repo itself maintains -- real gap, not just wording: the roadmap's own SS34.1.2 requires genuine signature verification, which does not exist yet. Corrected to "checksum/ integrity verification" and the gap is now stated honestly as open, not silently assumed closed. - Rollback (Step 15) only covered reverting cef-version.json, which would not undo a Cargo.toml/CMakeLists.txt change from a Rust- binding/Corrosion upgrade -- split into CEF-only (one-file revert, as before) vs. binding/Corrosion (one atomic commit, git revert that commit) cases, and cross-referenced from the binding-crate section so the "make it atomic" guidance and the rollback instructions agree with each other. - cef-learning-harness.yml: added set -o pipefail to the sandbox- inventory step (outside-diff-range finding) -- without it, a failed node process could be masked by tee's own success, silently corrupting the step's reported status despite continue-on-error already being set.
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User description
Summary
GetAccessibilityHandler()is declared onCefRenderHandler, notCefClient— andCefRenderHandler's own doc comment states it's "for handling events when window rendering is disabled" (OSR-only). Our host uses windowed rendering (CefBrowserView/CefWindow), so that method was never going to be reachable no matter what we inherited from — PR feat(cef): Early Accessibility Gate smoke test #391's blocker had a real, findable cause.CefBrowserHost::SetAccessibilityState's own doc comment (verified against real CEF 151 source,chromiumembedded/cefbranch 7922) confirms: for windowed browsers, this one call is sufficient — "all platform accessibility objects will be created and managed by Chromium's internal implementation." NoCefAccessibilityHandlerneeded.OnAfterCreated, no new class inheritance, minimal blast radius (unlike PR feat(cef): Early Accessibility Gate smoke test #391's fallback attempt, which combined multiple changes and caused a regression).Test plan
🧪 CEF host build, dependency inventory, launch-cycle proofjob compiles and all 3 repeated cycles pass with the newaccessibility_state_requested = trueproof line🤖 Generated with Claude Code
Summary by Sourcery
Enable and continuously verify accessibility state in the windowed CEF host while preserving existing launch, rendering, and crash-related proofs.
New Features:
Bug Fixes:
Enhancements:
CI:
Documentation:
Tests:
Summary by CodeRabbit
New Features
Documentation
CodeAnt-AI Description
Enable accessibility state in the CEF windowed host and verify it on every launch cycle
What Changed
Impact
✅ Accessibility state enabled on every browser launch✅ Accessibility regressions detected in repeated CI cycles✅ Fewer false-negative launch test results💡 Usage Guide
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