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Burst 4 of the autonomous correctness hunt — 2 distinct low-severity bugs, both boundary conditions. - validate seeded idx.end from the zero value 0 and grew it only via end > idx.end, while idx.start was correctly seeded on the first entry. For a fully-negative timeline (an external recording predating manifest t0), idx.end stayed 0, so a finding anchored after the real (negative) session end was accepted. idx.end is now seeded on the first entry, symmetric with idx.start. This is the sibling of burst 3's lower-bound fix — the same function's other half. - merge silently produced a nonsense timeline (events ~55 years after the speech) when a hand-edited/exchanged manifest omitted t0_epoch_ms, because BuildEntries anchored interactions to t0=0. Merge now rejects a manifest missing t0_epoch_ms when interactions are present; transcript-only sessions (already session-relative) are unaffected. Both fixes make the code match its documented contract. Docs (merge surface, CLI reference) and DECISIONS.md updated in step. Gates green. Assisted-by: Claude:claude-fable-5
This was referenced Jul 20, 2026
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Summary
Burst 4 — 2 distinct low-severity boundary bugs, each with a watched-to-fail test.
validateupper bound floored at 0.idx.endwas seeded from the zero value and grown only viaend > idx.end, whileidx.startwas correctly seeded on the first entry. For a fully-negative timeline (external recording predatingt0),idx.endstayed 0, so a finding anchored after the real (negative) session end was accepted. Now seeded symmetrically. This is the sibling of burst 3's lower-bound fix — the same function's other half.mergeproduced a nonsense timeline on a missingt0_epoch_ms. A hand-edited/exchanged manifest withoutt0_epoch_msanchored interactions tot0=0, placing events ~55 years after the speech (exit 0, silently). Merge now rejects a missingt0when interactions are present; transcript-only sessions are unaffected.Docs + DECISIONS updated; gates green independently. Stacked on #18.
Bugs per burst: 5 (one HIGH) → 2 → 4 → 2, severity floored at LOW for three bursts, and burst 4 found the symmetric half of burst 3's own fix. The finders are now circling code the previous burst just touched — the classic signal that the hunt has hit its noise floor. Continuing costs ~2M tokens/burst for increasingly niche edge cases (imported-recording clocks, hand-edited manifests). My recommendation is to call it here: merge #15–#19 and stop. See my message.
Assisted-by: Claude:claude-fable-5