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Hash-Sealed Evidence: One Feature, 19,461 Lines Rebuilt
Sealed evidence expires when content changes. Adding a feature to omaTrail rewrote 19,461 lines of its balance report before shipping.
ReadThe Primary Record Settles What a Derived One Assumed
A derived record inherits facts from other derived records. Four systems in one day carried a confident wrong fact until a primary source settled it.
ReadAuditing Written Claims Against Their Artifacts
A second review pass checks written claims against the artifacts they cite. It repaired about twenty statements of fact in records already treated as done.
ReadClaude Code Subagents Load at Session Start, Not at Commit
Claude Code registers project subagents at session start, so committed agents aren't available until restart. A human caught it, not the system.
ReadWhen a Gate Should Re-Run the Step Instead of Trusting Its Receipt
Have the gate re-run a deterministic step instead of trusting its receipt. Why the lander heals the record itself, and why uncommitted makes it safe.
ReadContract Tests Caught a 25 MiB Upload Truncation Reported as HTTP 201
Recorded-fixture contract tests found an upload truncated at 25 MiB and recorded as HTTP 201. The audit grade fell to B+ while coverage rose to 99.67%.
ReadPhoto to Listing: Barcode Decoding and LLM Re-rank
Exact issue identification is retrieval work, not vision work. How a photo to listing pipeline puts the LLM in the re-rank seat behind an evidence gate.
ReadEvery Claim Needs a Shipped Source and an Executable Proof
Every claim needs a shipped source and an executable proof. What a six-hour audit that closed nothing found out about code that was already finished.
ReadOne Corrected Check, Fifteen Repos
Correcting a gate is cheap. Propagating it through fifteen repos on a vendored, hash-pinned lane is the part that costs a day.
ReadScope the Guard to What the Job Actually Writes
Scope a guard to the paths its job actually writes. How a nightly producer kept aborting on edits it would never have touched.
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