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chore(runtime): retire the test-only V1 HistoryCompactBlock path and Synthesis Cache #3215

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chore(runtime): retire the test-only V1 HistoryCompactBlock path and Synthesis Cache#3215
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likun666661

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@Astro-Han
Astro-Han
opened on Aug 18, 2026

Found by a repo-wide simplification audit; re-verified with git grep -aI. Independently confirmed by two separate audit passes.

The V1 HistoryCompactBlock artifact compaction path and the Synthesis Cache are test-only:

  • The sole production composer of AiSdkBackend (packages/runtime-host/src/server/execution-model-composition.ts, checkpoint wiring around :385) supplies only loadHistoryCompactCheckpoint / summarizeHistoryCompact / recordHistoryCompactCheckpoint; it never supplies loadHistoryCompact / writeHistoryCompact.
  • All 9 repo-wide producers of writeHistoryCompact: are in packages/runtime/src/__tests__/ai-sdk-backend.test.ts.
  • history-compact-artifacts.ts and synthesis-cache-artifacts.ts have no production callers (tests + package export only).
  • MAKA_CONTEXT_SYNTHESIS_CACHE=on is exposed (context-budget-policy.ts) but there is no production persistence capability behind it — a toggle that cannot do anything.
  • docs/architecture/llm-compaction-events-log-projection-draft.md still describes V1 artifacts as a read-compat path, contradicting the actual wiring.
  • The only real capability user is the benchmark script scripts/deepseek-live-cost-baseline.mjs (itself orphaned; see the audit-residue issue).

Suggested cleanup: delete the two artifact adapters + tests + exports; move or migrate the benchmark's legacy usage; drop the unreachable branches and the false toggle; fix the doc. If shipped artifacts/local DBs may still hold V1 blocks, a minimal decoder can be retained — but not the full write path.

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chore(runtime): retire the test-only V1 HistoryCompactBlock path and Synthesis Cache · Issue #3215 · apache/maka · GitHub
    Skip to content
    chore(runtime): retire the test-only V1 HistoryCompactBlock path and Synthesis Cache #3215
    Open
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    Open
    chore(runtime): retire the test-only V1 HistoryCompactBlock path and Synthesis Cache#3215
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    likun666661
    Description
    @Astro-Han
    Astro-Han
    opened on Aug 18, 2026
    Found by a repo-wide simplification audit; re-verified with git grep -aI. Independently confirmed by two separate audit passes.
    The V1 HistoryCompactBlock artifact compaction path and the Synthesis Cache are test-only:
    • The sole production composer of AiSdkBackend (packages/runtime-host/src/server/execution-model-composition.ts, checkpoint wiring around :385) supplies only loadHistoryCompactCheckpoint / summarizeHistoryCompact / recordHistoryCompactCheckpoint; it never supplies loadHistoryCompact / writeHistoryCompact.
    • All 9 repo-wide producers of writeHistoryCompact: are in packages/runtime/src/__tests__/ai-sdk-backend.test.ts.
    • history-compact-artifacts.ts and synthesis-cache-artifacts.ts have no production callers (tests + package export only).
    • MAKA_CONTEXT_SYNTHESIS_CACHE=on is exposed (context-budget-policy.ts) but there is no production persistence capability behind it — a toggle that cannot do anything.
    • docs/architecture/llm-compaction-events-log-projection-draft.md still describes V1 artifacts as a read-compat path, contradicting the actual wiring.
    • The only real capability user is the benchmark script scripts/deepseek-live-cost-baseline.mjs (itself orphaned; see the audit-residue issue).
    Suggested cleanup: delete the two artifact adapters + tests + exports; move or migrate the benchmark's legacy usage; drop the unreachable branches and the false toggle; fix the doc. If shipped artifacts/local DBs may still hold V1 blocks, a minimal decoder can be retained — but not the full write path.
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chore(runtime): retire the test-only V1 HistoryCompactBlock path and Synthesis Cache · Issue #3215 · apache/maka · GitHub
      Skip to content
      chore(runtime): retire the test-only V1 HistoryCompactBlock path and Synthesis Cache #3215
      Open
      Task
      Open
      chore(runtime): retire the test-only V1 HistoryCompactBlock path and Synthesis Cache#3215
      Task
      Assignees
      likun666661
      Description
      @Astro-Han
      Astro-Han
      opened on Aug 18, 2026
      Found by a repo-wide simplification audit; re-verified with git grep -aI. Independently confirmed by two separate audit passes.
      The V1 HistoryCompactBlock artifact compaction path and the Synthesis Cache are test-only:
      • The sole production composer of AiSdkBackend (packages/runtime-host/src/server/execution-model-composition.ts, checkpoint wiring around :385) supplies only loadHistoryCompactCheckpoint / summarizeHistoryCompact / recordHistoryCompactCheckpoint; it never supplies loadHistoryCompact / writeHistoryCompact.
      • All 9 repo-wide producers of writeHistoryCompact: are in packages/runtime/src/__tests__/ai-sdk-backend.test.ts.
      • history-compact-artifacts.ts and synthesis-cache-artifacts.ts have no production callers (tests + package export only).
      • MAKA_CONTEXT_SYNTHESIS_CACHE=on is exposed (context-budget-policy.ts) but there is no production persistence capability behind it — a toggle that cannot do anything.
      • docs/architecture/llm-compaction-events-log-projection-draft.md still describes V1 artifacts as a read-compat path, contradicting the actual wiring.
      • The only real capability user is the benchmark script scripts/deepseek-live-cost-baseline.mjs (itself orphaned; see the audit-residue issue).
      Suggested cleanup: delete the two artifact adapters + tests + exports; move or migrate the benchmark's legacy usage; drop the unreachable branches and the false toggle; fix the doc. If shipped artifacts/local DBs may still hold V1 blocks, a minimal decoder can be retained — but not the full write path.
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(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
chore(runtime): retire the test-only V1 HistoryCompactBlock path and Synthesis Cache · Issue #3215 · apache/maka · GitHub
        Skip to content
        chore(runtime): retire the test-only V1 HistoryCompactBlock path and Synthesis Cache #3215
        Open
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        Open
        chore(runtime): retire the test-only V1 HistoryCompactBlock path and Synthesis Cache#3215
        Task
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        likun666661
        Description
        @Astro-Han
        Astro-Han
        opened on Aug 18, 2026
        Found by a repo-wide simplification audit; re-verified with git grep -aI. Independently confirmed by two separate audit passes.
        The V1 HistoryCompactBlock artifact compaction path and the Synthesis Cache are test-only:
        • The sole production composer of AiSdkBackend (packages/runtime-host/src/server/execution-model-composition.ts, checkpoint wiring around :385) supplies only loadHistoryCompactCheckpoint / summarizeHistoryCompact / recordHistoryCompactCheckpoint; it never supplies loadHistoryCompact / writeHistoryCompact.
        • All 9 repo-wide producers of writeHistoryCompact: are in packages/runtime/src/__tests__/ai-sdk-backend.test.ts.
        • history-compact-artifacts.ts and synthesis-cache-artifacts.ts have no production callers (tests + package export only).
        • MAKA_CONTEXT_SYNTHESIS_CACHE=on is exposed (context-budget-policy.ts) but there is no production persistence capability behind it — a toggle that cannot do anything.
        • docs/architecture/llm-compaction-events-log-projection-draft.md still describes V1 artifacts as a read-compat path, contradicting the actual wiring.
        • The only real capability user is the benchmark script scripts/deepseek-live-cost-baseline.mjs (itself orphaned; see the audit-residue issue).
        Suggested cleanup: delete the two artifact adapters + tests + exports; move or migrate the benchmark's legacy usage; drop the unreachable branches and the false toggle; fix the doc. If shipped artifacts/local DBs may still hold V1 blocks, a minimal decoder can be retained — but not the full write path.
        Metadata
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, 'i');
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try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
chore(runtime): retire the test-only V1 HistoryCompactBlock path and Synthesis Cache · Issue #3215 · apache/maka · GitHub
          Skip to content
          chore(runtime): retire the test-only V1 HistoryCompactBlock path and Synthesis Cache #3215
          Open
          Task
          Open
          chore(runtime): retire the test-only V1 HistoryCompactBlock path and Synthesis Cache#3215
          Task
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          likun666661
          Description
          @Astro-Han
          Astro-Han
          opened on Aug 18, 2026
          Found by a repo-wide simplification audit; re-verified with git grep -aI. Independently confirmed by two separate audit passes.
          The V1 HistoryCompactBlock artifact compaction path and the Synthesis Cache are test-only:
          • The sole production composer of AiSdkBackend (packages/runtime-host/src/server/execution-model-composition.ts, checkpoint wiring around :385) supplies only loadHistoryCompactCheckpoint / summarizeHistoryCompact / recordHistoryCompactCheckpoint; it never supplies loadHistoryCompact / writeHistoryCompact.
          • All 9 repo-wide producers of writeHistoryCompact: are in packages/runtime/src/__tests__/ai-sdk-backend.test.ts.
          • history-compact-artifacts.ts and synthesis-cache-artifacts.ts have no production callers (tests + package export only).
          • MAKA_CONTEXT_SYNTHESIS_CACHE=on is exposed (context-budget-policy.ts) but there is no production persistence capability behind it — a toggle that cannot do anything.
          • docs/architecture/llm-compaction-events-log-projection-draft.md still describes V1 artifacts as a read-compat path, contradicting the actual wiring.
          • The only real capability user is the benchmark script scripts/deepseek-live-cost-baseline.mjs (itself orphaned; see the audit-residue issue).
          Suggested cleanup: delete the two artifact adapters + tests + exports; move or migrate the benchmark's legacy usage; drop the unreachable branches and the false toggle; fix the doc. If shipped artifacts/local DBs may still hold V1 blocks, a minimal decoder can be retained — but not the full write path.
          Metadata
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, 'i');
if (__m === '*' || __re.test(location.href)) {
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(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
chore(runtime): retire the test-only V1 HistoryCompactBlock path and Synthesis Cache · Issue #3215 · apache/maka · GitHub
            Skip to content
            chore(runtime): retire the test-only V1 HistoryCompactBlock path and Synthesis Cache #3215
            Open
            Task
            Open
            chore(runtime): retire the test-only V1 HistoryCompactBlock path and Synthesis Cache#3215
            Task
            Assignees
            likun666661
            Description
            @Astro-Han
            Astro-Han
            opened on Aug 18, 2026
            Found by a repo-wide simplification audit; re-verified with git grep -aI. Independently confirmed by two separate audit passes.
            The V1 HistoryCompactBlock artifact compaction path and the Synthesis Cache are test-only:
            • The sole production composer of AiSdkBackend (packages/runtime-host/src/server/execution-model-composition.ts, checkpoint wiring around :385) supplies only loadHistoryCompactCheckpoint / summarizeHistoryCompact / recordHistoryCompactCheckpoint; it never supplies loadHistoryCompact / writeHistoryCompact.
            • All 9 repo-wide producers of writeHistoryCompact: are in packages/runtime/src/__tests__/ai-sdk-backend.test.ts.
            • history-compact-artifacts.ts and synthesis-cache-artifacts.ts have no production callers (tests + package export only).
            • MAKA_CONTEXT_SYNTHESIS_CACHE=on is exposed (context-budget-policy.ts) but there is no production persistence capability behind it — a toggle that cannot do anything.
            • docs/architecture/llm-compaction-events-log-projection-draft.md still describes V1 artifacts as a read-compat path, contradicting the actual wiring.
            • The only real capability user is the benchmark script scripts/deepseek-live-cost-baseline.mjs (itself orphaned; see the audit-residue issue).
            Suggested cleanup: delete the two artifact adapters + tests + exports; move or migrate the benchmark's legacy usage; drop the unreachable branches and the false toggle; fix the doc. If shipped artifacts/local DBs may still hold V1 blocks, a minimal decoder can be retained — but not the full write path.
            Metadata
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, 'i');
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(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
chore(runtime): retire the test-only V1 HistoryCompactBlock path and Synthesis Cache · Issue #3215 · apache/maka · GitHub
              Skip to content
              chore(runtime): retire the test-only V1 HistoryCompactBlock path and Synthesis Cache #3215
              Open
              Task
              Open
              chore(runtime): retire the test-only V1 HistoryCompactBlock path and Synthesis Cache#3215
              Task
              Assignees
              likun666661
              Description
              @Astro-Han
              Astro-Han
              opened on Aug 18, 2026
              Found by a repo-wide simplification audit; re-verified with git grep -aI. Independently confirmed by two separate audit passes.
              The V1 HistoryCompactBlock artifact compaction path and the Synthesis Cache are test-only:
              • The sole production composer of AiSdkBackend (packages/runtime-host/src/server/execution-model-composition.ts, checkpoint wiring around :385) supplies only loadHistoryCompactCheckpoint / summarizeHistoryCompact / recordHistoryCompactCheckpoint; it never supplies loadHistoryCompact / writeHistoryCompact.
              • All 9 repo-wide producers of writeHistoryCompact: are in packages/runtime/src/__tests__/ai-sdk-backend.test.ts.
              • history-compact-artifacts.ts and synthesis-cache-artifacts.ts have no production callers (tests + package export only).
              • MAKA_CONTEXT_SYNTHESIS_CACHE=on is exposed (context-budget-policy.ts) but there is no production persistence capability behind it — a toggle that cannot do anything.
              • docs/architecture/llm-compaction-events-log-projection-draft.md still describes V1 artifacts as a read-compat path, contradicting the actual wiring.
              • The only real capability user is the benchmark script scripts/deepseek-live-cost-baseline.mjs (itself orphaned; see the audit-residue issue).
              Suggested cleanup: delete the two artifact adapters + tests + exports; move or migrate the benchmark's legacy usage; drop the unreachable branches and the false toggle; fix the doc. If shipped artifacts/local DBs may still hold V1 blocks, a minimal decoder can be retained — but not the full write path.
              Metadata
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, 'i');
if (__m === '*' || __re.test(location.href)) {
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var enabled = true;
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pre code, pre code * {
filter: none !important;
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/* Fix common UI elements */
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filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
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var observer = new MutationObserver(function(mutations) {
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applyDarkMode();
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observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
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} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
chore(runtime): retire the test-only V1 HistoryCompactBlock path and Synthesis Cache · Issue #3215 · apache/maka · GitHub
                Skip to content
                chore(runtime): retire the test-only V1 HistoryCompactBlock path and Synthesis Cache #3215
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                chore(runtime): retire the test-only V1 HistoryCompactBlock path and Synthesis Cache#3215
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                likun666661
                Description
                @Astro-Han
                Astro-Han
                opened on Aug 18, 2026
                Found by a repo-wide simplification audit; re-verified with git grep -aI. Independently confirmed by two separate audit passes.
                The V1 HistoryCompactBlock artifact compaction path and the Synthesis Cache are test-only:
                • The sole production composer of AiSdkBackend (packages/runtime-host/src/server/execution-model-composition.ts, checkpoint wiring around :385) supplies only loadHistoryCompactCheckpoint / summarizeHistoryCompact / recordHistoryCompactCheckpoint; it never supplies loadHistoryCompact / writeHistoryCompact.
                • All 9 repo-wide producers of writeHistoryCompact: are in packages/runtime/src/__tests__/ai-sdk-backend.test.ts.
                • history-compact-artifacts.ts and synthesis-cache-artifacts.ts have no production callers (tests + package export only).
                • MAKA_CONTEXT_SYNTHESIS_CACHE=on is exposed (context-budget-policy.ts) but there is no production persistence capability behind it — a toggle that cannot do anything.
                • docs/architecture/llm-compaction-events-log-projection-draft.md still describes V1 artifacts as a read-compat path, contradicting the actual wiring.
                • The only real capability user is the benchmark script scripts/deepseek-live-cost-baseline.mjs (itself orphaned; see the audit-residue issue).
                Suggested cleanup: delete the two artifact adapters + tests + exports; move or migrate the benchmark's legacy usage; drop the unreachable branches and the false toggle; fix the doc. If shipped artifacts/local DBs may still hold V1 blocks, a minimal decoder can be retained — but not the full write path.
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