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claude-code - ✅(Solved) Fix [BUG] SIGKILL on older CPU [1 pull requests, 1 comments, 2 participants]

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anthropics/claude-code#50852•Fetched 2026-04-20 12:11:16
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Error Message

026-04-19 19:49:16.644 [info] Getting authentication status 2026-04-19 19:49:16.644 [info] OAuth tokens found in secure storage 2026-04-19 19:49:17.132 [error] claude auth status parse failed: SyntaxError: Unexpected end of JSON input 2026-04-19 19:49:17.136 [info] Received message from webview: {"type":"request","requestId":"bepowjeaax","request":{"type":"get_claude_state"}} 2026-04-19 19:49:17.138 [info] Received message from webview: {"type":"request","requestId":"w6g1igg9hbl","request":{"type":"get_current_selection"}} 2026-04-19 19:49:17.138 [info] Received message from webview: {"type":"request","requestId":"i7zyxlvd72k","request":{"type":"get_asset_uris"}} 2026-04-19 19:49:17.143 [info] Received message from webview: {"type":"request","requestId":"7ousr4329sw","request":{"type":"list_sessions_request"}} 2026-04-19 19:49:17.146 [info] Received message from webview: {"type":"request","requestId":"q5johw9gp3","request":{"type":"rename_tab","title":"Claude Code","hasPendingPermissions":false,"hasUnseenCompletion":false}} 2026-04-19 19:49:17.427 [info] Received message from webview: {"type":"request","requestId":"ajevh4zzzbe","request":{"type":"rename_tab","title":"Claude Code","hasPendingPermissions":false,"hasUnseenCompletion":false}} 2026-04-19 19:49:17.428 [info] Received message from webview: {"type":"launch_claude","channelId":"bhjztb7zonq","cwd":"/home/j/Documents/CryptoBot","permissionMode":"default","thinkingLevel":"default_on"} 2026-04-19 19:49:17.466 [info] Launching Claude on channel: bhjztb7zonq 2026-04-19 19:49:27.759 [info] Python env: PATH=/usr/bin:/home/j/.local/bin:/home/j/.local/bin:/home/j/.nvm/versions/node/v24.15.0/bin:/home/j/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin 2026-04-19 19:49:27.759 [info] Python env: VIRTUAL_ENV=/usr 2026-04-19 19:49:27.760 [info] Spawning Claude with SDK query function - cwd: /home/j/Documents/CryptoBot, permission mode: default, version: 2.1.109, /home/j/.vscode/extensions/anthropic.claude-code-2.1.109-linux-x64/resources/native-binary/claude, resume: undefined 2026-04-19 19:49:28.049 [info] Closing Claude on channel: bhjztb7zonq 2026-04-19 19:49:28.051 [error] Error spawning Claude (on channel bhjztb7zonq): Error: Claude Code process terminated by signal SIGILL 2026-04-19 19:49:28.053 [error] Failed to load config cache: Error: Claude Code process terminated by signal SIGILL 2026-04-19 19:49:28.057 [error] Error processing client request: Error: Claude Code process terminated by signal SIGILL 2026-04-19 19:49:28.257 [info] Received message from webview: {"type":"interrupt_claude","channelId":"bepowjeaax"} 2026-04-19 19:49:28.271 [warning] Channel not found: bepowjeaax 2026-04-19 19:49:30.308 [info] Received message from webview: {"type":"request","requestId":"tlmytwcvtgj","request":{"type":"open_output_panel"}}

PR fix notes

PR #83: feat: bkit v2.1.9 — CC v2.1.114→v2.1.116 response + 4 ENH + 100% Docs=Code sync

Description (problem / solution / changelog)

Summary

bkit v2.1.9 is a maintenance-and-response release targeting Claude Code CLI versions v2.1.114 → v2.1.116 (released 2026-04-18 to 2026-04-20). The release delivers 4 acceptance-gated ENH items (253/254/259/263), positive drift of 2 v2.1.10 roadmap items (ENH-264 infrastructure + ENH-265 full implementation), and a 100% Docs=Code synchronization across all user-facing documentation.

  • 74 consecutive compatible releases (v2.1.34 → v2.1.116; v2.1.115 skipped, 8th skipped release in the v2.1.x series).
  • Shipping QA: Match Rate 100% (15/15 acceptance criteria), Coverage 90.3%, P0 Blockers 0, Regression 0, 28 L1–L5 test cases (22 PASS / 4 environmental SKIP / 0 FAIL).
  • Runtime behavior additions are small and well-scoped (1 new lib function, 1 new env-var branch, 2 new hook-block call sites). Most of the diff is documentation, JSDoc version sync, and CC-recommended-version string propagation — this is intentional for a response release.

What actually changed at runtime (the honest summary)

CategoryFilesRuntime impact
Pure Markdown documentation (README, CHANGELOG, CUSTOMIZATION-GUIDE, AI-NATIVE-DEVELOPMENT, bkit-system/, docs/)28None (human-readable only)
`agents/*.md` (17 agents, CC recommended version string only)17Agent prompt context only (no logic change)
`lib/**/*.js` JSDoc `@version 1.6.0 → 2.0.0` single-line sync32None (comment-only)
`scripts/config-change-handler.js` (Defense-in-Depth inline comments)1None (comment-only; `DANGEROUS_PATTERNS` array unchanged)
`bkit.config.json` (`performance.promptCaching1h` declaration block)1None by itself (declaration only; code reads `process.env` directly)
Config JSON metadata (`plugin.json`, `marketplace.json`, `hooks.json`)3None (version/description)
Actual runtime code additions4Yes — see below

The 4 files with real runtime behavior changes

  1. `lib/core/io.js` (+35 lines) — New exported function `outputBlockWithContext(reason, alternatives, hookEvent)`. Enables structured block responses via CC v2.1.110+ `hookSpecificOutput.additionalContext`. Dormant unless called.
  2. `scripts/unified-bash-pre.js` (+111 lines) — ENH-264: `ALTERNATIVES_BY_PATTERN` map (rm -rf, git reset --hard, chmod 777, dd if=, sudo rm -rf, etc.) + `getAlternativesForCommand()` helper + 2 call sites: deployment-phase detection (line 144) and QA-phase detection (line 183). General Bash danger coverage remains delegated to CC runtime Layer 1 (v2.1.113 #14/#15/#16 + v2.1.116 S1); full general-purpose coverage is scheduled for v2.1.10.
  3. `hooks/startup/session-context.js` (+15 lines) — SessionStart `additionalContext` version string v2.1.8 → v2.1.9, architecture counts (37/32/19 → 39/36/21 + 2 MCP Servers), CC recommended version (v2.1.111+/72 consecutive → v2.1.116+/74 consecutive), new ENH-265 branch that reads `process.env.ENABLE_PROMPT_CACHING_1H` and emits either `✅ enabled` or `⚠️ disabled — set ...` guidance with the operational-guide link.
  4. `bkit.config.json` (+10 lines) — Declares `performance.promptCaching1h` (`recommended: true`, `envVar: ENABLE_PROMPT_CACHING_1H`, `ccMinVersion: v2.1.108`, operator note). Reference-only; the hook reads the env var directly.

ENH details

Shipped at acceptance (4 ENH, Plan-scoped)

ENHTypeSummary
ENH-253Docs + manual verification`docs/03-analysis/zero-script-qa-fork-v2116-verification.md`. Manual reproduction of GitHub #51165 (`context: fork` + `disable-model-invocation` failure) on macOS. Non-reproduction on darwin 24.6.0. bkit's sole `context: fork` skill (`zero-script-qa`, 1/39) operates normally; bkit uses `disable-model-invocation` 0/39 so the combination case is N/A. ENH-196/202 investment protected.
ENH-254Code comment + new doc`scripts/config-change-handler.js:17-29` Layer-1/Layer-2 inline comment block (no array change). New `docs/03-analysis/security-architecture.md` (5 sections): layer definitions, attack-vector matrix, user-responsibility clause ("do NOT rely on either layer alone"), change history, code references.
ENH-259Docs`CUSTOMIZATION-GUIDE.md` new ⚠️ Important Notices section + `README.md` Custom Skills warning bullet for GitHub #51234 (`/.claude/skills/` silent deletion on CC v2.1.113+ first-run). bkit itself is unaffected (uses `${CLAUDE_PLUGIN_ROOT}/skills/`); user custom skills at `/.claude/skills/` are at risk. Backup/restore commands (full + selective) + recommended plugin-bundle path guidance.
ENH-263Code + docs (Docs=Code)15-file architectural-count + CC-recommended-version correction. `@version 1.6.0` in `lib/` → 0 matches (ENH-270 acceptance). 17 agents bulk updated to v2.1.116+.

Positive drift from v2.1.10 roadmap (Plan §4.1)

ENHTypeSummary
ENH-264Code (infrastructure + partial logic)New `lib/core/io.js:outputBlockWithContext` + `scripts/unified-bash-pre.js` alternatives map + 2 phase-specific call sites. General-Bash coverage remains on the v2.1.10 roadmap — v2.1.9 is infrastructure-only for the general case.
ENH-265Code (complete)`hooks/startup/session-context.js:236-241` env-var branch + `bkit.config.json` declaration + `docs/03-analysis/prompt-caching-optimization.md` operational guide. Fully shipped; requires `ENABLE_PROMPT_CACHING_1H=1` in the user's shell before launching Claude Code to activate (CC v2.1.108+).

Bonus

ENHTypeSummary
ENH-266Docs10 additional files synced to v2.1.9 baseline (README, CUSTOMIZATION-GUIDE, AI-NATIVE-DEVELOPMENT, bkit-system/*). Architecture counts normalized to 39 Skills / 36 Agents / 43 Scripts / 101 Lib modules (11 subdirs) / 21 Hook Events / 18 Templates / 4 Output Styles / 2 MCP Servers.
ENH-270Code cleanup`grep -rn "@version 1.6.0" lib/` = 0 matches (ENH-263 acceptance criterion met).

Runtime-verified architecture baseline (measured 2026-04-21)

ComponentCountVerification
Skills3939/39 `effort` frontmatter; 1/39 `context: fork` (`zero-script-qa`); 0/39 `disable-model-invocation`, `paths`, `monitors`
Agents3613 opus / 21 sonnet / 2 haiku; 2 low / 21 medium / 13 high / 0 xhigh effort; 20/36 `disallowedTools` (55.6%); 0/36 `initialPrompt`, `hooks:`
Scripts4343/43 `node --check` clean
Lib modules10111 subdirectories: audit, context, control, core, intent, pdca, qa, quality, task, team, ui (no `adapters` subdir — prior docs myth corrected)
Hook Events21`hooks/hooks.json` keys
Templates18`templates/*.md`
Output Styles4`output-styles/*.md`
MCP Servers2`bkit-pdca-server`, `bkit-analysis-server` (16 tools combined)
BKIT_VERSION runtime2.1.9`lib/core/version.js` dynamic lookup → `bkit.config.json`

Shipping QA summary

Full report: `docs/05-qa/cc-v2114-v2116-shipping-readiness.report.md` (19,780 bytes).

L1 smoke

  • lib/ 101/101 `require()` OK
  • scripts/ 43/43 `node --check` OK
  • `BKIT_VERSION` runtime = `"2.1.9"`

L3 runtime

  • SessionStart hook `additionalContext` = 4,401 chars (under 10,000 CC cap, 44%)
  • Contains v2.1.9 ✅, v2.1.116+ ✅, 39 Skills, 36 Agents ✅, Prompt caching 1H ✅

L4 contract

  • Plan/Design acceptance criteria: 15/15 met (4 ENH × average 3.75 criteria each)
  • Docs=Code post-sync grep for legacy numbers (`38 Skills`, `32 Agents`, `88 Lib`, `93 modules`, `42 scripts`, `12 subdirectories`): 0 matches in active state (historic blockquotes preserved per Plan §5.2 DO NOT TOUCH policy).

Shipping notes (all non-blocker)

  • P2: `bkit-system/components/skills/_skills-overview.md:3` v2.1.8 tag still present; `zero-script-qa/SKILL.md` has no `allowed-tools` (intentional — fork context with `agent: bkit:qa-monitor` inheritance).
  • P3: MEMORY.md at 291 lines (over ~200 guideline); ENH-264/265 Plan §4.1 roadmap annotation should be updated.

User experience changes (end-user visible)

New in v2.1.9

  1. Prompt caching hint at session start — Every SessionStart now shows either `- Prompt caching 1H: ✅ enabled (30-40% token savings on long PDCA sessions)` or `- Prompt caching 1H: ⚠️ disabled — set ENABLE_PROMPT_CACHING_1H=1 before launching CC ...` in the version/architecture block. Setting the env var before launching Claude Code yields 30–40% token savings on multi-hour PDCA sessions (CC v2.1.108+ feature).
  2. Alternative-command suggestions on blocked destructive Bash (deployment/QA phases only in v2.1.9) — When `/pdca deploy` or QA-phase flow blocks a dangerous command, Claude now receives structured alternatives (e.g., `git clean -fdx` / `rm -rf ./dist ./build ./node_modules` / `trash ~/path`) via `hookSpecificOutput.additionalContext` and can propose a reformulated command automatically. Full general-Bash coverage lands in v2.1.10.
  3. Defense-in-Depth security transparency — New `docs/03-analysis/security-architecture.md` documents exactly which attack vectors are defended by CC runtime (Layer 1) vs. bkit config-change hook (Layer 2). Users can now make informed decisions about which layer to rely on for which threat model.
  4. Custom Skills data-loss warning — Users upgrading to CC v2.1.113+ with personal skills in `~/.claude/skills/` now see the warning in README + CUSTOMIZATION-GUIDE with backup/restore commands. bkit plugin itself is unaffected.
  5. Architecture Dashboard accuracy — Session startup now reports `39 Skills, 36 Agents, 21 Hook Events, 2 MCP Servers` (matching filesystem reality), and the `/skills` / `/agents` menus align with plugin metadata.

Changed in v2.1.9

  • CC recommended version v2.1.111+ → v2.1.116+ (74 consecutive compatible releases, v2.1.115 skipped). Users on macOS 11 should stay on v2.1.112 (issue #50383); users on non-AVX CPUs should stay on v2.1.112 (issues #50384 / #50852).
  • README badge `v2.1.111+` → `v2.1.116+`.
  • 17 agent prompts now reference v2.1.116+ recommendation context when invoked.

Unchanged (but users may notice)

  • No breaking changes to any skill, agent, slash command, or hook event.
  • No changes to `disable-model-invocation`, `context:`, or any other skill frontmatter fields in user-authored skills.
  • Session context size roughly same (~4,401 chars for SessionStart `additionalContext` with `ENABLE_PROMPT_CACHING_1H` unset, well under the 10,000-char CC cap).

Monitoring (MON-CC-06) — unchanged from v2.1.8

v2.1.113 native-binary transition 10+ regression issues + v2.1.114~v2.1.116 6 new HIGH issues = 16 issues tracked. v2.1.117+ hotfix awaited. No official v2.1.116 resolutions yet.

Environmental exceptions:

  • macOS 11: stay on v2.1.112 (#50383 dyld)
  • Non-AVX CPUs: stay on v2.1.112 (#50384/#50852 SIGILL)
  • Windows with parenthesized PATH: partial improvement on v2.1.114+ via B12 fix (#50541)

Test plan

  • L1 smoke — lib 101/101 require + scripts 43/43 `node --check` (see `docs/05-qa/evidence/v219/l1-smoke-lib-scripts.txt`)
  • L3 runtime — SessionStart mock hook probe (see `docs/05-qa/evidence/v219/session-start.stdout.json`)
  • L4 contract — 4 ENH acceptance criteria × 15 conditions (see `docs/05-qa/cc-v2114-v2116-shipping-readiness.report.md` §4)
  • Regression — 43 baseline TCs retained + v2.1.8 Round 4 matrix assertions unaffected
  • Docs=Code gap re-verification — 0 active-state legacy matches
  • Post-merge: tag `v2.1.9`, create GitHub Release, verify plugin marketplace registration

Commit breakdown

  • `feat(v2.1.9)` — 59 files, +239 / -76 (runtime code + config + 17 agents + lib JSDoc + scripts)
  • `docs(v2.1.9)` — 12 files, +435 / -56 (README, CHANGELOG, CUSTOMIZATION-GUIDE, AI-NATIVE-DEVELOPMENT, bkit-system/*, memory/ cc version history)
  • `docs(pdca)` — 17 files, PDCA artifacts (plan, design, analysis, report, qa, evidence)

Total: 88 files changed, +874 / -132 LOC.

Links

🤖 Generated with Claude Code

Changed files

  • .claude-plugin/marketplace.json (modified, +3/-3)
  • .claude-plugin/plugin.json (modified, +2/-2)
  • AI-NATIVE-DEVELOPMENT.md (modified, +10/-10)
  • CHANGELOG.md (modified, +38/-0)
  • CUSTOMIZATION-GUIDE.md (modified, +62/-12)
  • README.md (modified, +20/-9)
  • agents/bkend-expert.md (modified, +1/-1)
  • agents/code-analyzer.md (modified, +1/-1)
  • agents/cto-lead.md (modified, +1/-1)
  • agents/design-validator.md (modified, +1/-1)
  • agents/enterprise-expert.md (modified, +1/-1)
  • agents/frontend-architect.md (modified, +1/-1)
  • agents/gap-detector.md (modified, +1/-1)
  • agents/infra-architect.md (modified, +1/-1)
  • agents/pdca-iterator.md (modified, +1/-1)
  • agents/pipeline-guide.md (modified, +1/-1)
  • agents/pm-lead.md (modified, +1/-1)
  • agents/product-manager.md (modified, +1/-1)
  • agents/qa-monitor.md (modified, +1/-1)
  • agents/qa-strategist.md (modified, +1/-1)
  • agents/report-generator.md (modified, +1/-1)
  • agents/security-architect.md (modified, +1/-1)
  • agents/starter-guide.md (modified, +1/-1)
  • bkit-system/README.md (modified, +14/-14)
  • bkit-system/_GRAPH-INDEX.md (modified, +7/-5)
  • bkit-system/components/agents/_agents-overview.md (modified, +2/-1)
  • bkit-system/components/hooks/_hooks-overview.md (modified, +1/-0)
  • bkit-system/components/scripts/_scripts-overview.md (modified, +2/-1)
  • bkit-system/components/skills/_skills-overview.md (modified, +2/-1)
  • bkit-system/philosophy/context-engineering.md (modified, +4/-4)
  • bkit.config.json (modified, +9/-1)
  • docs/01-plan/features/bkit-v219-docs-sync.plan.md (added, +260/-0)
  • docs/01-plan/features/cc-v2112-v2114-impact-analysis.plan.md (added, +180/-0)
  • docs/01-plan/features/cc-v2114-v2116-impact-analysis.plan.md (added, +281/-0)
  • docs/02-design/features/bkit-v219-docs-sync.design.md (added, +227/-0)
  • docs/02-design/features/cc-v2114-v2116-impact-analysis.design.md (added, +430/-0)
  • docs/03-analysis/prompt-caching-optimization.md (added, +186/-0)
  • docs/03-analysis/security-architecture.md (added, +150/-0)
  • docs/03-analysis/zero-script-qa-fork-v2116-verification.md (added, +185/-0)
  • docs/04-report/features/bkit-v219-docs-sync.report.md (added, +258/-0)
  • docs/04-report/features/cc-v2112-v2114-impact-analysis.report.md (added, +366/-0)
  • docs/04-report/features/cc-v2114-v2116-impact-analysis.report.md (added, +397/-0)
  • docs/05-qa/cc-v2114-v2116-shipping-readiness.report.md (added, +320/-0)
  • docs/05-qa/evidence/v219/enh-263-grep-evidence.txt (added, +34/-0)
  • docs/05-qa/evidence/v219/enh-264-265-migration-notice.md (added, +56/-0)
  • docs/05-qa/evidence/v219/frontmatter-audit.json (added, +30/-0)
  • docs/05-qa/evidence/v219/l1-smoke-lib-scripts.txt (added, +27/-0)
  • docs/05-qa/evidence/v219/session-start.stdout.json (added, +21/-0)
  • hooks/hooks.json (modified, +1/-1)
  • hooks/session-start.js (modified, +2/-2)
  • hooks/startup/session-context.js (modified, +11/-4)
  • lib/core/cache.js (modified, +1/-1)
  • lib/core/config.js (modified, +1/-1)
  • lib/core/debug.js (modified, +2/-2)
  • lib/core/file.js (modified, +1/-1)
  • lib/core/io.js (modified, +33/-2)
  • lib/core/platform.js (modified, +2/-2)
  • lib/import-resolver.js (modified, +1/-1)
  • lib/intent/ambiguity.js (modified, +1/-1)
  • lib/intent/index.js (modified, +1/-1)
  • lib/intent/language.js (modified, +1/-1)
  • lib/intent/trigger.js (modified, +1/-1)
  • lib/pdca/automation.js (modified, +1/-1)
  • lib/pdca/executive-summary.js (modified, +1/-1)
  • lib/pdca/level.js (modified, +1/-1)
  • lib/pdca/phase.js (modified, +1/-1)
  • lib/pdca/template-validator.js (modified, +1/-1)
  • lib/pdca/tier.js (modified, +1/-1)
  • lib/permission-manager.js (modified, +1/-1)
  • lib/skill-orchestrator.js (modified, +1/-1)
  • lib/task/classification.js (modified, +1/-1)
  • lib/task/context.js (modified, +1/-1)
  • lib/task/creator.js (modified, +1/-1)
  • lib/task/index.js (modified, +1/-1)
  • lib/task/tracker.js (modified, +1/-1)
  • lib/team/communication.js (modified, +1/-1)
  • lib/team/coordinator.js (modified, +1/-1)
  • lib/team/cto-logic.js (modified, +1/-1)
  • lib/team/hooks.js (modified, +1/-1)
  • lib/team/index.js (modified, +1/-1)
  • lib/team/orchestrator.js (modified, +1/-1)
  • lib/team/state-writer.js (modified, +1/-1)
  • lib/team/strategy.js (modified, +1/-1)
  • lib/team/task-queue.js (modified, +1/-1)
  • memory/cc_version_history_v2113_v2114.md (added, +126/-0)
  • memory/cc_version_history_v2115_v2116.md (added, +149/-0)
  • scripts/config-change-handler.js (modified, +17/-6)
  • scripts/unified-bash-pre.js (modified, +108/-3)

Code Example

026-04-19 19:49:16.644 [info] Getting authentication status
2026-04-19 19:49:16.644 [info] OAuth tokens found in secure storage
2026-04-19 19:49:17.132 [error] claude auth status parse failed: SyntaxError: Unexpected end of JSON input
2026-04-19 19:49:17.136 [info] Received message from webview: {"type":"request","requestId":"bepowjeaax","request":{"type":"get_claude_state"}}
2026-04-19 19:49:17.138 [info] Received message from webview: {"type":"request","requestId":"w6g1igg9hbl","request":{"type":"get_current_selection"}}
2026-04-19 19:49:17.138 [info] Received message from webview: {"type":"request","requestId":"i7zyxlvd72k","request":{"type":"get_asset_uris"}}
2026-04-19 19:49:17.143 [info] Received message from webview: {"type":"request","requestId":"7ousr4329sw","request":{"type":"list_sessions_request"}}
2026-04-19 19:49:17.146 [info] Received message from webview: {"type":"request","requestId":"q5johw9gp3","request":{"type":"rename_tab","title":"Claude Code","hasPendingPermissions":false,"hasUnseenCompletion":false}}
2026-04-19 19:49:17.427 [info] Received message from webview: {"type":"request","requestId":"ajevh4zzzbe","request":{"type":"rename_tab","title":"Claude Code","hasPendingPermissions":false,"hasUnseenCompletion":false}}
2026-04-19 19:49:17.428 [info] Received message from webview: {"type":"launch_claude","channelId":"bhjztb7zonq","cwd":"/home/j/Documents/CryptoBot","permissionMode":"default","thinkingLevel":"default_on"}
2026-04-19 19:49:17.466 [info] Launching Claude on channel: bhjztb7zonq
2026-04-19 19:49:27.759 [info] Python env: PATH=/usr/bin:/home/j/.local/bin:/home/j/.local/bin:/home/j/.nvm/versions/node/v24.15.0/bin:/home/j/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin
2026-04-19 19:49:27.759 [info] Python env: VIRTUAL_ENV=/usr
2026-04-19 19:49:27.760 [info] Spawning Claude with SDK query function - cwd: /home/j/Documents/CryptoBot, permission mode: default, version: 2.1.109, /home/j/.vscode/extensions/anthropic.claude-code-2.1.109-linux-x64/resources/native-binary/claude, resume: undefined
2026-04-19 19:49:28.049 [info] Closing Claude on channel: bhjztb7zonq
2026-04-19 19:49:28.051 [error] Error spawning Claude (on channel bhjztb7zonq): Error: Claude Code process terminated by signal SIGILL
2026-04-19 19:49:28.053 [error] Failed to load config cache: Error: Claude Code process terminated by signal SIGILL
2026-04-19 19:49:28.057 [error] Error processing client request: Error: Claude Code process terminated by signal SIGILL
2026-04-19 19:49:28.257 [info] Received message from webview: {"type":"interrupt_claude","channelId":"bepowjeaax"}
2026-04-19 19:49:28.271 [warning] Channel not found: bepowjeaax
2026-04-19 19:49:30.308 [info] Received message from webview: {"type":"request","requestId":"tlmytwcvtgj","request":{"type":"open_output_panel"}}
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Preflight Checklist

  • I have searched existing issues and this hasn't been reported yet
  • This is a single bug report (please file separate reports for different bugs)
  • I am using the latest version of Claude Code

What's Wrong?

CPU: Intel Pentium P6200 (no AVX support) Was working, broke with 2.1.114 auto-update SIGILL error on the native binary

What Should Happen?

Claude should work with no SIGKILL

Error Messages/Logs

026-04-19 19:49:16.644 [info] Getting authentication status
2026-04-19 19:49:16.644 [info] OAuth tokens found in secure storage
2026-04-19 19:49:17.132 [error] claude auth status parse failed: SyntaxError: Unexpected end of JSON input
2026-04-19 19:49:17.136 [info] Received message from webview: {"type":"request","requestId":"bepowjeaax","request":{"type":"get_claude_state"}}
2026-04-19 19:49:17.138 [info] Received message from webview: {"type":"request","requestId":"w6g1igg9hbl","request":{"type":"get_current_selection"}}
2026-04-19 19:49:17.138 [info] Received message from webview: {"type":"request","requestId":"i7zyxlvd72k","request":{"type":"get_asset_uris"}}
2026-04-19 19:49:17.143 [info] Received message from webview: {"type":"request","requestId":"7ousr4329sw","request":{"type":"list_sessions_request"}}
2026-04-19 19:49:17.146 [info] Received message from webview: {"type":"request","requestId":"q5johw9gp3","request":{"type":"rename_tab","title":"Claude Code","hasPendingPermissions":false,"hasUnseenCompletion":false}}
2026-04-19 19:49:17.427 [info] Received message from webview: {"type":"request","requestId":"ajevh4zzzbe","request":{"type":"rename_tab","title":"Claude Code","hasPendingPermissions":false,"hasUnseenCompletion":false}}
2026-04-19 19:49:17.428 [info] Received message from webview: {"type":"launch_claude","channelId":"bhjztb7zonq","cwd":"/home/j/Documents/CryptoBot","permissionMode":"default","thinkingLevel":"default_on"}
2026-04-19 19:49:17.466 [info] Launching Claude on channel: bhjztb7zonq
2026-04-19 19:49:27.759 [info] Python env: PATH=/usr/bin:/home/j/.local/bin:/home/j/.local/bin:/home/j/.nvm/versions/node/v24.15.0/bin:/home/j/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin
2026-04-19 19:49:27.759 [info] Python env: VIRTUAL_ENV=/usr
2026-04-19 19:49:27.760 [info] Spawning Claude with SDK query function - cwd: /home/j/Documents/CryptoBot, permission mode: default, version: 2.1.109, /home/j/.vscode/extensions/anthropic.claude-code-2.1.109-linux-x64/resources/native-binary/claude, resume: undefined
2026-04-19 19:49:28.049 [info] Closing Claude on channel: bhjztb7zonq
2026-04-19 19:49:28.051 [error] Error spawning Claude (on channel bhjztb7zonq): Error: Claude Code process terminated by signal SIGILL
2026-04-19 19:49:28.053 [error] Failed to load config cache: Error: Claude Code process terminated by signal SIGILL
2026-04-19 19:49:28.057 [error] Error processing client request: Error: Claude Code process terminated by signal SIGILL
2026-04-19 19:49:28.257 [info] Received message from webview: {"type":"interrupt_claude","channelId":"bepowjeaax"}
2026-04-19 19:49:28.271 [warning] Channel not found: bepowjeaax
2026-04-19 19:49:30.308 [info] Received message from webview: {"type":"request","requestId":"tlmytwcvtgj","request":{"type":"open_output_panel"}}

Steps to Reproduce

installed extension in visual code a couple of weeks ago, it did work and something updated in the last few days

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

No response

Claude Code Version

2.1.114

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

VS Code integrated terminal

Additional Information

No response

extent analysis

TL;DR

The issue is likely due to the native binary in Claude Code version 2.1.114 not being compatible with the CPU architecture (Intel Pentium P6200 without AVX support), causing a SIGILL error.

Guidance

  • The error message "Error: Claude Code process terminated by signal SIGILL" suggests an invalid instruction was encountered, which could be due to the native binary being compiled with instructions not supported by the CPU.
  • The fact that it worked previously and stopped working after an update implies a change in the native binary that introduced instructions not compatible with the CPU.
  • To verify, check if the CPU supports the required instructions for the native binary in version 2.1.114.
  • Consider reaching out to the developers to provide a binary compatible with the Intel Pentium P6200 or to explore alternative solutions.

Example

No code snippet is provided as this issue seems related to binary compatibility rather than code.

Notes

The exact solution depends on the specifics of the native binary and the CPU architecture. Without more information about the binary's requirements and the CPU's capabilities, it's challenging to provide a precise fix.

Recommendation

Apply workaround: Reach out to the developers for a compatible binary or explore using a different version of Claude Code that is known to work with the Intel Pentium P6200. This is because the current version's native binary is likely the cause of the issue due to its incompatibility with the CPU.

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claude-code - ✅(Solved) Fix [BUG] SIGKILL on older CPU [1 pull requests, 1 comments, 2 participants]